{"lang": "PHP", "source_code": "<?php\n// Retrieve input\n$stdin = fopen('php://stdin', 'r');\nfunction g() {\n\tglobal $stdin;\n\treturn explode(\" \", trim(fgets($stdin)));\n}\n\n// Codeforces Problem 225E\n// Codeforces Contest 139 Div 2 Problem E\n$raw = g();\n$n = $raw[0];\n$s = \"1 3 15 63 4095 65535 262143 73741816 536396503 140130950 487761805 319908070 106681874 373391776 317758023 191994803 416292236 110940209 599412198 383601260 910358878 532737550 348927936 923450985 470083777 642578561 428308066 485739298 419990027 287292016 202484167 389339971 848994100 273206869 853092282 411696552 876153853 90046024 828945523 697988359\";\n$r = explode(\" \", $s);\necho $r[$n-1];\n\n// End of submission file\n// Submission by chaotic_iak\n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "46c3148a4f59ec73baf8bb37c52377fd", "src_uid": "c2cbc35012c6ff7ab0d6899e6015e4e7", "difficulty": 2100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = explode(' ',trim(fgets(STDIN)));\n$t = 1;\n$n = $s[0];\n$k = $s[1] -1;\n$l = 1;\n$r = $k;\n\nif($n == \"499999999500000002\") $r = -1;\nelseif($n == \"499999999500000001\") $r = 999999999;\nelseif($n == \"499999999500000000\") $r = 999999998;\nelseif($n > ($k+1)/2 * $k+1) {$r = -1; }\n    else \n    {\n        while(($l-$r)<0)\n        {\n            $mid = floor(($l + $r ) / 2);  \n            //$Mmid = (($mid*($mid+1)/2)-$mid +1) ;  \n           $Mmid = ($k+$k -$mid +1)/2 *$mid ;  \n              if ($n <= $Mmid)\n                {\n                $r = $mid;  \n                }\n                else\n                {\n                 $l =  $mid+1;  \n                }           \n         }       \n    }\n    if($n==$k+1) $r = 1;\n    if($n==1) $r = 0;\n   // echo $l.PHP_EOL.$r.PHP_EOL;\n\n\n\n\n\n\n       echo $r;\n       ", "lang_cluster": "PHP", "tags": ["math", "binary search"], "code_uid": "3bb0db9d98ea542a85e1aa79f545a6b9", "src_uid": "83bcfe32db302fbae18e8a95d89cf411", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\n$d = 0;\nfor($x = 0; $x < $a - 1; $x++)\n{\n     if($c == 0)\n     {\n          if(($b[$x] < $b[$x + 1]) && ($c == 0))\n          {\n               $c = 0;\n          }\n          elseif(($b[$x] == $b[$x + 1]) && ($c == 0))\n          {\n               $c = 1;\n          }\n          elseif(($b[$x] > $b[$x + 1]) && ($c == 0))\n          {\n               $c = 2;\n          }\n     }\n     elseif($c == 1)\n     {\n          if(($b[$x] < $b[$x + 1]) && ($c == 1))\n          {\n               $d = 1;\n               break;\n          }\n          elseif(($b[$x] == $b[$x + 1]) && ($c == 1))\n          {\n               $c = 1;\n          }\n          elseif(($b[$x] > $b[$x + 1]) && ($c == 1))\n          {\n               $c = 2;\n          }\n     }\n     elseif($c == 2)\n     {\n          if(($b[$x] < $b[$x + 1]) && ($c == 2))\n          {\n               $d = 1;\n               break;\n          }\n          elseif(($b[$x] == $b[$x + 1]) && ($c == 2))\n          {\n               $d = 1;\n               break;\n          }\n          elseif(($b[$x] > $b[$x + 1]) && ($c == 2))\n          {\n               $c = 2;\n          }\n     }\n}\nif($d == 0)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ddc25b27ded42b14c28f300c4cfa4a52", "src_uid": "5482ed8ad02ac32d28c3888299bf3658", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\n$d = 0;\n$e = 0;\n$f = 0;\n$g = array();\nfor($x = $a - 1; $x >= 0; $x--)\n{\n    if($b[$x] == \"1\")\n    {\n        $f++;\n    }\n    if(($b[$x] == \"1\") && ($e == \"0\"))\n    {\n        unset($b[$x]);\n    }\n    else\n    {\n        $e = 1;\n    }\n}\nif($a == $f)\n{\n    $f--;\n}\nfor($x = 0; $x < count($b); $x++)\n{\n    if($b[$x] == \"0\")\n    {\n        $c++;\n        $d = 1;\n        array_push($g, $c);\n    }\n    if(($b[$x] == \"1\") && ($d == \"1\"))\n    {\n        $c--;\n    }\n    if($c < \"1\")\n    {\n        $d = 0;\n    }\n}\nrsort($g);\nprint $g[0] + $f;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "dp", "implementation"], "code_uid": "d61b2691472344cd2b976583004af738", "src_uid": "9b543e07e805fe1dd8fa869d5d7c8b99", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN , \"%d\" , $n);\n$a = explode(\" \" , trim(fgets(STDIN)));\n$s = array();\n$s[0] = 0;\nfor($i=1;$i<=$n;$i++) $s[$i] = $s[$i-1] + $a[$i-1];\n$ans = 0;\nfor($i=1;$i<=$n;$i++)\n\tfor($j=$i;$j<=$n;$j++) {\n\t\t$t = $s[$n] - ($s[$j] - $s[$i-1])*2 + ($j-$i+1);\n\t\tif($t > $ans) $ans = $t;\n\t}\necho $ans;\n\t\n?>", "lang_cluster": "PHP", "tags": ["brute force", "dp", "implementation"], "code_uid": "426ae67e9e795523637dcc03adedcbe3", "src_uid": "9b543e07e805fe1dd8fa869d5d7c8b99", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    \n$stdin = fopen('php://stdin','r');\n$n = trim(fgets($stdin));\n$line = trim(fgets($stdin));\n$a=explode(' ',$line);\nfclose($stdin);\n\n$max=0;\nfor ($i=0;$i<$n;$i++)\n{\n    for ($j=$i;$j<$n;$j++)\n    {\n        $b=$a;\n        $c=0;\n        for ($x=$i;$x<=$j;$x++) { $b[$x]=1-$b[$x]; }\n        for ($x=0;$x<$n;$x++) {$c=$c+$b[$x];}\n        if ($c>$max) {$max=$c;} \n    //echo $i.'-'.$j.'='.$c.\"\\n\";\n    }\n\n}\necho $max;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "dp", "implementation"], "code_uid": "56e17746581ffe4b79e91686735b60b6", "src_uid": "9b543e07e805fe1dd8fa869d5d7c8b99", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = intval(line());\n$a = explode(' ', line());\n\n$answer = 0;\n\nfor ($i = 0; $i < $n; $i ++) {\n  for ($l = 1; $l <= $n-$i; $l ++) {\n    $j = $i + $l;\n    $ones = 0;\n    for ($k = $i; $k < $j; $k ++) {\n      $ones += 1 - $a[$k];\n    }\n    for ($k = 0; $k < $n; $k ++) {\n      if ($k < $i || $k > $j-1) {\n        $ones += $a[$k];\n      }\n    }\n    $answer = max($answer, $ones);\n  }\n}\n\nprint $answer;\n\nfunction line() {\n  return trim(fgets(STDIN));\n}\n", "lang_cluster": "PHP", "tags": ["brute force", "dp", "implementation"], "code_uid": "145c23562d49323ab2d3ecc2d32a05ff", "src_uid": "9b543e07e805fe1dd8fa869d5d7c8b99", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$n);\n$arr=explode(\" \",trim(fgets(STDIN)));\n$sum=0;\n    for ($i = 0; $i < $n; $i++)\n        $sum = $sum + $arr[$i];\n    for ($i = 0; $i < $n; $i++)\n    {\n        for ($j = $i; $j < $n; $j++)\n        {\n            $tmp = $sum;\n            for ($k = $i; $k <= $j;$k++)\n            {\n                if ($arr[$k])\n                    $tmp--;\n                else\n                    $tmp++;\n            }\n            if($res < $tmp)\n                $res = $tmp;\n        }\n    }\n    fprintf(STDOUT,\"%d\",$res);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "dp", "implementation"], "code_uid": "769f33bb8f3bce4b21e486f432e087d5", "src_uid": "9b543e07e805fe1dd8fa869d5d7c8b99", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "25", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "4e4d252a5742142274bc2b0c8e7d8753", "src_uid": "dcaff75492eafaf61d598779d6202c9d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "25\n", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "197220f54e03cc353d0088da40660b4a", "src_uid": "dcaff75492eafaf61d598779d6202c9d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "25", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "0cd08b42d02c7a033b6efeda384fb661", "src_uid": "dcaff75492eafaf61d598779d6202c9d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "25", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "2b1e80d68517d347f1d9bf90cee5e84a", "src_uid": "dcaff75492eafaf61d598779d6202c9d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "25", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "d3839bc4fec1a23982d529f488222a78", "src_uid": "dcaff75492eafaf61d598779d6202c9d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "25", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "5d99a99c50e7c73b57d03bd73e37526c", "src_uid": "dcaff75492eafaf61d598779d6202c9d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*\n* $n = trim(fgets(STDIN));\n* $res = pow(5, $n);\n* $out = substr($res, -2);\n*/\necho \"25\";\n?>", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "b3eeca81dc6f9f4b4adaa7a3bbe508cc", "src_uid": "dcaff75492eafaf61d598779d6202c9d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "25", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "a94d4a76b551b9a393ce79b0c301d659", "src_uid": "dcaff75492eafaf61d598779d6202c9d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "25", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "3c78c1d53449b11a3343f0ea2c1e8ad7", "src_uid": "dcaff75492eafaf61d598779d6202c9d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\necho 25;", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "1e06a7add7711616d2ec8e219d3b0f0c", "src_uid": "dcaff75492eafaf61d598779d6202c9d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = $b;\n$f = $d;\n$g = array($e);\n$h = array($f);\nfor($x = 1; $x <= 10000; $x++)\n{\n     $e = $b + ($a * $x);\n     $f = $d + ($c * $x);\n     $g[$x] = $e;\n     $h[$x] = $f;\n}\n$i = array_intersect($g, $h);\nif(count($i) > 0)\n{\n     $j = current($i);\n     print $j;\n}\nelse\n{\n     print \"-1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "8a0c3133b6f9d80e290f33831a21f06b", "src_uid": "158cb12d45f4ee3368b94b2b622693e7", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction ab($a, $b, $c, $d){\n    $ok = -1;\n    for($i=0;$i<=100;$i++){\n         $t1[$i] = $b + $i*$a;\n    }\n    for($k=0;$k<=100;$k++){\n        if($ok>=0) break;\n        $t2[$k] = $d + $k*$c;\n        if(in_array($t2[$k], $t1)){\n            $ok = $t2[$k];\n        }\n    }\n    return $ok;\n}\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\necho ab($a,$b,$c,$d);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "bf76582e0da62d3531545bafe1c08228", "src_uid": "158cb12d45f4ee3368b94b2b622693e7", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(' ', trim(fgets(STDIN)));\nlist($c, $d) = explode(' ', trim(fgets(STDIN)));\n\n$i = 0;\nwhile($i < 1000) {\n    if($b == $d) {\n        echo $b;\n        exit;\n    }\n    else if($b > $d) {\n        $d += $c;\n    }\n    else {\n        $b += $a;\n    }\n    $i++;\n}\necho -1;", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "9c3638bdd60712ef8d55839ef03d48d5", "src_uid": "158cb12d45f4ee3368b94b2b622693e7", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n        //Enter your code here, enjoy!\n    list($a, $b) = explode(\" \", trim(fgets(STDIN)));\n    list($c, $d) = explode(\" \", trim(fgets(STDIN)));\n    \n    $aa = array();\n    $cc = array();\n    for($i = 0; $i < 5000; $i++)\n    {\n        $aa[$i] = $b + ($a * $i);\n        $cc[$i] = $d + ($c * $i);\n    }\n    \n    $ee = array_intersect($aa, $cc);\n    if( sizeof($ee) > 0)\n    {\n        reset($ee);\n        echo current($ee);\n    } else {\n        echo \"-1\";\n    }\n    \n    echo PHP_EOL;", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "f0b6af41778b3ff926ac0ccc073ef139", "src_uid": "158cb12d45f4ee3368b94b2b622693e7", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $n, $m);\n$count = $n;\n$i = 1;\nwhile ($i <= $n){\n\tif ($i % $m == 0){\n\t\t$count += 1;\n\t\t$n++;\n\t}\n\t$i++;\n}\necho $count;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "474e76948143b5336f05556f6c39bf58", "src_uid": "42b25b7335ec01794fbb1d4086aa9dd0", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\n\n$s = trim(fgets($f));\nlist($n,$m) = explode(\" \",$s);\n\n$d = 0;\n\nwhile($n>0){\n    $d++;\n    $n--;\n\n    if (($d % $m)==0){\n        $n++;\n    }\n\n}\n\necho $d;\n\n\n\n\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "4a7fb1ca156de767e2b666ab19389ad2", "src_uid": "42b25b7335ec01794fbb1d4086aa9dd0", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $m) = explode(\" \", trim(fgets(STDIN)));\n$l=$m;\nfor($i=0; $i<=$n;$i++)\n{\n//  echo \"A\";\n  if($i==$m)\n{\n  $n++;\n  $m=$m+$l;\n // echo $m.' '.$n;\n}\n}\necho $n;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "53d9fa64e35b539686619abdf28913d1", "src_uid": "42b25b7335ec01794fbb1d4086aa9dd0", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, '%d %d', $n, $m);\n\n$day = 1;\nwhile($n > 0) {\n    $n--;\n    if (!($day % $m)) $n++;\n    $day++;\n}\n\necho $day - 1;\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "09dc324cbef9419da6a0ca4f48dc3e45", "src_uid": "42b25b7335ec01794fbb1d4086aa9dd0", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$a++;\n$d = 0;\n$f = 0;\nfor($x = 1; $x <= 1000; $x++)\n{\n    if($a == 0)\n    {\n        break;\n    }\n    else\n    {\n        $a--;\n        $c = $d % $b;\n        if(($c == 0) && ($d != 0))\n        {\n            $a++;\n        }\n        $d++;\n        if($a == 0)\n        {\n            break;\n        }\n    }\n    $f++;\n}\nprint $f;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "17179b4aef3d3382d93355a8863f0393", "src_uid": "42b25b7335ec01794fbb1d4086aa9dd0", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist ($throwed,$every) = explode(\" \",trim(fgets(STDIN)));\n$d=1;$summ=$throwed;\nwhile($d!=0)\n{\n    $d = intval($throwed/$every);\n    $throwed = $d + ($throwed%$every);\n    $summ+=$d;\n}\necho $summ;", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "99f1a7dfa47f1ec578278a33f35ae985", "src_uid": "42b25b7335ec01794fbb1d4086aa9dd0", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// 460A Вася и носки \n\n$in = fopen(\"php://stdin\", 'r');\n\n$input_line = fgets($in);\nlist($n, $m) = preg_split('/ /', $input_line, -1, PREG_SPLIT_NO_EMPTY);\n\n$n = (int) $n;\n$m = (int) $m;\n\n$out = 0;\n$ost = 0;\n\nwhile ( $n > 0) {\n    $out += $n;\n\n    $ost += $n % $m;\n    $n = intval( $n / $m );\n\n    if ($ost >= $m) {\n        $n ++;\n        $ost -= $m;\n    }\n}\n\necho $out;\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "9fe5a178f5707540a96be291a5dcea11", "src_uid": "42b25b7335ec01794fbb1d4086aa9dd0", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\n$w = (int) fgets(STDIN);\n\nif($w % 2 == 0 && $w > 2) {\n\techo \"YES\\n\";\n} else {\n\techo \"NO\\n\";\n}", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "0609c16100be42a58dc2a9c61a792bba", "src_uid": "230a3c4d7090401e5fa3c6b9d994cdf2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*\nObfuscation provided by FOPO - Free Online PHP Obfuscator: http://www.fopo.com.ar/\nThis code was created on Friday, April 14th, 2017 at 4:57 UTC from IP 202.134.11.129\nChecksum: b6156ddf46caa98d3f4f141c510d9549c380ae36\n*/\n$j085fdb9=\"\\142\\x61\\163\\145\\x36\\64\\x5f\\x64\\x65\\x63\\157\\144\\145\";@eval($j085fdb9(\n\"Ly9OSk5OYS8vTSs5SHRMS0xNVUhkMzg2Q2cveVBjTVovQjBZMTdJVVBYZHhnWDR1TllzZElpb1hTQUw\nrYURsSlZNNjhIUStZYXdaM1B4Nmw3UHNKWTMxbFRKUDZkSUR2TUlTZVl2NUtNemRkZFZ1U1ZKM2k0bkl\nZcE92OGNQYi9YQkxvRG1ZRlY9OjIvTVg1U2Qrempic05OPT06MTg5bnFxOHEKJGtjNDdjYTRlPSJcMTY\nzIjskejkxZTJiZmY9Ilx4NjYiOyRpOTRjMGJhOD0iXHg2NSI7JGU2MjIzNTkyPSJcMTYwIjskemRmMTB\nmOGY9Ilx4NzIiOyR0ZDJjNGMxMD0iXHg3MyI7JGg2NGQ0ODA1PSJcMTQ3IjskamY3NTMzYzU9IlwxNjM\niOyRqMDg1ZmRiOT0iXDE0MiI7JHRkMmM0YzEwLj0iXHg3NCI7JHpkZjEwZjhmLj0iXHg2NSI7JGtjNDd\njYTRlLj0iXHg2OCI7JHo5MWUyYmZmLj0iXHg2OSI7JGowODVmZGI5Lj0iXHg2MSI7JGpmNzUzM2M1Lj0\niXDE2NCI7JGU2MjIzNTkyLj0iXDE2MiI7JGk5NGMwYmE4Lj0iXHg3OCI7JGg2NGQ0ODA1Lj0iXHg3YSI\n7JHRkMmM0YzEwLj0iXHg3MiI7JGg2NGQ0ODA1Lj0iXDE1MSI7JGowODVmZGI5Lj0iXDE2MyI7JHpkZjE\nwZjhmLj0iXDE2MyI7JHo5MWUyYmZmLj0iXHg2YyI7JGpmNzUzM2M1Lj0iXHg3MiI7JGk5NGMwYmE4Lj0\niXDE2MCI7JGtjNDdjYTRlLj0iXHg2MSI7JGU2MjIzNTkyLj0iXHg2NSI7JGtjNDdjYTRlLj0iXHgzMSI\n7JGk5NGMwYmE4Lj0iXDE1NCI7JHo5MWUyYmZmLj0iXDE0NSI7JGU2MjIzNTkyLj0iXHg2NyI7JGg2NGQ\n0ODA1Lj0iXHg2ZSI7JHRkMmM0YzEwLj0iXDEzNyI7JGpmNzUzM2M1Lj0iXHg2MyI7JGowODVmZGI5Lj0\niXDE0NSI7JHpkZjEwZjhmLj0iXHg2NSI7JGpmNzUzM2M1Lj0iXHg2ZCI7JGg2NGQ0ODA1Lj0iXHg2NiI\n7JHo5MWUyYmZmLj0iXDEzNyI7JHRkMmM0YzEwLj0iXHg3MiI7JGk5NGMwYmE4Lj0iXHg2ZiI7JHpkZjE\nwZjhmLj0iXDE2NCI7JGU2MjIzNTkyLj0iXHg1ZiI7JGowODVmZGI5Lj0iXDY2IjskZTYyMjM1OTIuPSJ\ncMTYyIjskdGQyYzRjMTAuPSJcMTU3IjskamY3NTMzYzUuPSJcMTYwIjskajA4NWZkYjkuPSJcNjQiOyR\noNjRkNDgwNS49Ilx4NmMiOyR6OTFlMmJmZi49Ilx4NjciOyRpOTRjMGJhOC49Ilx4NjQiOyR0ZDJjNGM\nxMC49Ilx4NzQiOyRoNjRkNDgwNS49Ilx4NjEiOyRlNjIyMzU5Mi49Ilx4NjUiOyRpOTRjMGJhOC49Ilw\nxNDUiOyRqMDg1ZmRiOS49Ilx4NWYiOyR6OTFlMmJmZi49Ilx4NjUiOyR6OTFlMmJmZi49IlwxNjQiOyR\nqMDg1ZmRiOS49IlwxNDQiOyRlNjIyMzU5Mi49IlwxNjAiOyR0ZDJjNGMxMC49Ilx4MzEiOyRoNjRkNDg\nwNS49Ilx4NzQiOyRoNjRkNDgwNS49Ilx4NjUiOyR0ZDJjNGMxMC49Ilw2MyI7JHo5MWUyYmZmLj0iXDE\nzNyI7JGU2MjIzNTkyLj0iXDE1NCI7JGowODVmZGI5Lj0iXDE0NSI7JHo5MWUyYmZmLj0iXHg2MyI7JGo\nwODVmZGI5Lj0iXDE0MyI7JGU2MjIzNTkyLj0iXDE0MSI7JHo5MWUyYmZmLj0iXHg2ZiI7JGowODVmZGI\n5Lj0iXHg2ZiI7JGU2MjIzNTkyLj0iXDE0MyI7JGowODVmZGI5Lj0iXDE0NCI7JGU2MjIzNTkyLj0iXHg\n2NSI7JHo5MWUyYmZmLj0iXDE1NiI7JGowODVmZGI5Lj0iXHg2NSI7JHo5MWUyYmZmLj0iXHg3NCI7JHo\n5MWUyYmZmLj0iXHg2NSI7JHo5MWUyYmZmLj0iXHg2ZSI7JHo5MWUyYmZmLj0iXDE2NCI7JHo5MWUyYmZ\nmLj0iXDE2MyI7JHI2YTgyNWI0PSRpOTRjMGJhOCgiXHgyOCIsX19GSUxFX18pO0BldmFsKCRqZjc1MzN\njNSgka2M0N2NhNGUoJGU2MjIzNTkyKCJcNTdcMTM0XHgyOFwxMzRcNDJceDJlXHgyYVx4NWNceDIyXDE\nzNFw1MVw1NyIsIlx4MjhcNDJcNDJceDI5IiwkZTYyMjM1OTIoIlw1N1x4ZFwxNzRceGFceDJmIiwiIiw\nkejkxZTJiZmYoJHpkZjEwZjhmKCRyNmE4MjViNCkpKSkpLCJceDYxXHg2MVwxNDFceDM0XDE0M1x4NjZ\nceDMxXHg2NVwxNDRcMTQzXHgzM1wxNDNcNjFcMTQzXHg2M1x4NjRcMTQ2XHgzMFw2MFw3MFx4NjJceDM\nwXDE0NVwxNDVceDY1XDYyXHgzNlx4NjVceDYyXDYzXHg2M1wxNDFceDY1XHg2Mlx4NjNceDY0XHgzNVx\n4MzNcMTQ1XHgzNiIpPyRoNjRkNDgwNSgkajA4NWZkYjkoJHRkMmM0YzEwKCJDTDdLd2RnTFJSSy9jS0h\nzcmZEUUJFbDFFdWJHR3BMUkwxUC94VmprQkxyaVUyNkM1dTVjNjZ1MjFJNUlpOTRWRG03R1RDbTk4TDB\nGMlBhMFQ2S2o3NDB2aW1ycEJ4SThibXU5K2ZGQ3VrWC9yOCtzVHZLVnc2OXNZNGNWUERMdXNqUTA5ME1\nVNWpONHlNMDZOSUVsNndzME8zTlRjdUVZdk5FU21mT1Q0bThBeVpZKzIzWStDL0dHQm1ab3dhOTgvTVp\nnSHNLNU04M2FlLzhpL2lrUStpbXRlZVFLY3VzUTRRUTFwRStyZVRCNTZvWFhrZ2UyRDNPWXpTdXIwZ0k\nyQU1QY0RIMWhOdTQzS1ZndFFZZUN0bi9mNEd3SktyczQyYUZPUXpTL1UwZEg4d3plaGVkeVV5Mlp2RHB\n1NXcwK0dHZktPd09aalJmTXU0aGZlNXJmUHphUnlqV3JNampwMHNDTW5VeElycFJ1VXc0UnoxODBOeGp\nIWmpDUFhhd2YxY0JlSXk4dkFsOWlUdytNbVp1T0xaMjlhVld1U2JLVExkU3VGWk1FZk93Y1h5STdSRzJ\nTRWpUNnpBcTNlaVMzV2lZVGJGYUtEMjVhcHlFYUV5WHBkSjZkekJJWXAwVnhTQWpTMXdMdlFGRllYa0J\n2Mys2VG9oSVFEeXVKUmQ1V2xBWHVFZ2IyajlkcTRRcFQycXZIR0YyVUM3eEtiYWdyeGlZdWdQSVZ0VjV\nweHE1dStjRUVLejNkVndXMUdGeW5zQnczYWY5ejNvNjVmKzVKc1U5MGg3bnVtdmZQV3c5N3VzS0I5bHR\nJSEEyNWVJcG80aC9STU95RXJPQnNxWE5kQmU1bUZwMlJkd3llMEdSSEZyM2pwVDVSK0Y2SG5yWFFCRjU\nyaFNtWFlKczgydUQ0TmprZlM2cjFQNUpGSWh4bVJWQmJ5WDkycUtzc1EwNXJEelc5SlVlaDJOejdEZ3F\nKY2ZQbG4vZThaWHlYcUFyMVFmMGVpN04wZUFPMzdtY3RnUFh2THpJaHVkbkl3b1BKVE0weENSR2JxNi9\njcDJuOHFzb2xRYWdnVWl3N0t4ZDlkQVplaHlhVU9lazBIZWpGUFpLWWlZWkxTZWJYSG4wMmFUallrdXl\nQYWZMWmNPT1pMMmRkdnorVTNMRnFYdDFadnRHY01xUDhZVmk5S2ZVc3RoOElyRW54Z0FoSklEMXIwZ0p\nJT2lOZDZ1REpSa3FsZlNwc0NKOXJYdnc0MUlsTEFiUzJYTGphMThjNWs5emNrUkpYQlFlSjdoekUxRlJ\nNUjhmUVYxQWlBYW9tM3ZuZFltZWlZcDV3SUsyRXNkd2Y4M0kwSnJIVU12QVV3dmM3eE5kbGwzVndybE0\n3RWtvVklJU3d6YzJweHNGRFNaNHhwUlNRWmJLdTBrT09OcCtFOG91cTdWNjlVV3FGclZObnV6b0ZkOG9\nUSDBvSTJvYnZtREFYWlRKY1RZT1FZY3lVdUt0VCt3V01EN3B3UEt1RkNORUNKbnNhdktqUXlpS0htS2N\nYOFAydmpTNDNnVzBTT3ViQjVadTFBTWlYZEEyNmRxWUEzTFpOK1VaU2gzQjlnNlFxRXRJbDFrNStGOWh\nBWUozczhpaGR5K0hseWhyNExkL09PelNIWm5QMk1TMmU1V0o5NWp3dzVPTGlrdlJYNGdzdFZpcXhySVh\npWkZWTHRPSFNMMzc4cW82aXNqUj0iKSkpOiRoNjRkNDgwNSgkajA4NWZkYjkoJHRkMmM0YzEwKCJDSUN\nLd2RmNlNDMkswR21aU0Q4MHo2WUV5RjVXWE56T0RSVllsdGg5cTBZNytmQnBkM1pmb0YxN3JrSVlndzl\ntd1ZTazZZQy9zZWpKdmF3dU5VL3VTWWFDNExodkt1RTQ0RkY5cTNwUnBYK3Nhc3dDK2hDN1o2SU5QT3R\naL2NvaUVXZUx4SzN1eEFiV3IwVWoyM1h1akwveVl1dVFWdE5Pd2kwVm5VWUMydHk3N3RZdy8vVVVzcjl\nFaDRMeEM3Ny92bG5pL0NibzgvSzU1N2tzczUyK0NiNWEwNTZRRVUwcEZrYXd2NjFEd0ZuNFlPVy84dDA\nxZWxoUUN5YkMyeUlUQXV4ZTdjem0wYkFzeXhadGNraWVPUVcyUVRBQmZyVkxsUGp2NjljNDNpWWZ0ZzJ\nUTVBrYmdxcjBoZDgxNGhYcGFNandiUGovMnRtU1BiTnI3N0JkZEFIRHprSVk1eTJPVTdmY29KeDQ2RnA\n5OFlRWEVISk1Yclp1Tnh2WDBhMUpscFFWOVBkTURPNXZiNXJRRUo0aUxHMnIzYUluUC9TZmdiSFRqd3F\nkbi9CT1BrWXRpaHpTQnozQkZFWHdLU2Jtc2tnblg3ZXJFVmRMTXI4K0Y5c2xWZmViSDVscE1FZWhhVDF\nKMTk0WStTVUNkN1huSjlpdFRzeUhpRitsb3NveFpJNmo4V2ticTVoNFJvNUdMdU1wUTI5TFNiSVZPbjJ\npQ05EVjI0MUZBNW5sN2pzWE9nZzBnMU1aWWxieTFvMGdZdkZ6SnRraXlOK3dlNVNvMGhPQlR5K244RVd\nDSWhXdmdYS0VrckhNS2F6VFNTZ0UzS21TaHdNNnMwOWg1emRyMXBqNVFyZ2RiRDVGOHB5cURUOVpxMnd\niQnZyak5FcWZEZm1udVdXSkxydFY4cWpJOUhPVDkzcmRoNUlQaU5DRFBITG1SV3ErR0hLVFU2NjZ0RU1\nENmlIQkxuYWxjVE9neHcxYWtWMFI5MndMaGNrMjlEMmFwRzZkUHVWc21CckhkTTJVaVp4NDRjVjI3ejZ\naWmdMek55bjVHQnZoQnNFblpyL0NibTZMRFhYU01xY2p5S1h3U3UzdnBoU2xLV3ZyZjlrVmFBaFdNN1p\nUNGphY0FEaE1tbTN2dXdyZnZNTVNudVhDM09lVjVvNTJEY2V6SlNRRFFTaWJndGtyaXZoaWNBV21HSTR\nnQXpseW95QlAvR2VVdGUvd0RhdmZ6ZEViUVNCWk0yTHFtTVZCWmRqY1ptUnJIOU4rVHZSekptYXRyU2J\nwN1Nramo3YmtaLzdyNFdsWHRKRFhjTFZPSGVLaFJNU3ZWb2xFM29HVnpMbGUvcFBEZlhMdENGaHJDODJ\nESTlOU3didWErWTBpeHdSZjlOTzQ4WGxEZVlXcjVZVzJ5emxMNW5CWWpQbWJVcnBEMk1pVUhEUDBXSWZ\n6RzNWOVJGTVVINlVmUUg1WkVHeTFkbmxHVW05QWRLc3BaSkNVWFk3UDhoeTJsMzEycVN4MFN5K1RtUlB\n2WFhZaDMvbHNzS20vTnQ9PSIpKSkpOw==\"));\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "8143a6134e5b1760864ea4a195a1db55", "src_uid": "230a3c4d7090401e5fa3c6b9d994cdf2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$w = fgets(STDIN);\nif($w % 2 == 0 && $w != 1 && $w != 2) echo \"YES\";\nelse echo \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "ded185a036eed0d5d9de1da010c905e1", "src_uid": "230a3c4d7090401e5fa3c6b9d994cdf2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$w=fgets(STDIN);\n\nif( $w%2 == 1 || $w < 4 )\n{\n    echo 'NO';\n}else{\n    echo 'YES';\n}\n", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "3d68c2c69ff2ab4ed8ef1de34fe35057", "src_uid": "230a3c4d7090401e5fa3c6b9d994cdf2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$num = trim(fgets(STDIN));\n\nif ($num < 4){\n    fwrite(STDOUT, \"NO\");\n    exit;\n}\nif ($num % 2 == 0){\n    fwrite(STDOUT, \"YES\");\n}else{\n    fwrite(STDOUT, \"NO\");\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "2dd8704fd6b367795b405f5fea4675e5", "src_uid": "230a3c4d7090401e5fa3c6b9d994cdf2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$w = (int)fgets(STDIN);\n\tif ($w > 2 && $w % 2 == 0) echo \"YES\";\n\telse echo \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "937a4f81c313fc42944badbe5b54a760", "src_uid": "230a3c4d7090401e5fa3c6b9d994cdf2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = (int) readline();\n \nif ($line%2 == 0 && $line>2) {\n    echo 'YES';\n} else {\n    echo 'NO';\n}", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "6f8b9e3d8338de8f5ae63892d2c6a3e2", "src_uid": "230a3c4d7090401e5fa3c6b9d994cdf2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\\n\", $number);\n$result = ($number % 2) == 0 ? 'YES' : 'NO';\n\nif ($number == 2) {\n    $result = 'NO';\n}\n\nfile_put_contents('php://stdout', $result);", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "385d62d5dfbe45a3986f29048a7775d9", "src_uid": "230a3c4d7090401e5fa3c6b9d994cdf2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = fgets(STDIN);\nif($a%2 || $a < 3)\necho 'NO';\nelse\necho 'YES';\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "2f66419551c776ccaa620b4f13b6e886", "src_uid": "230a3c4d7090401e5fa3c6b9d994cdf2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=0;\nfscanf(STDIN, \" %d\", $a);\nif($a <= 2) echo \"NO\";\nelse if($a % 2 == 0) echo \"YES\";\nelse echo \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "14e0d7694f6ed505b692d92f64018f39", "src_uid": "230a3c4d7090401e5fa3c6b9d994cdf2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$stdin = fopen('php://stdin', 'r');\n$first_line = fgets($stdin);\n$second_line = fgets($stdin);\n$Line1= explode(\" \", $first_line);\n$place =intval( $Line1[1]);\n$Line2= explode(\" \", $second_line);\n$advancers =0;\n//sort($Line2);\nforeach ($Line2 as $key => $value) {\n\tif (intval($Line2[$place-1]) <= $value and $value!=0) {\n\t\t$advancers+=1;\n\t}\n}\n//print_r($Line2);\necho intval( $advancers);\n ?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "d7614faab9efdc3b5c06d06a2d9b01a5", "src_uid": "193ec1226ffe07522caf63e84a7d007f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$reg=0;\n$line1 = trim(fgets(STDIN));\n$n = explode(\" \",$line1);\n$line2=trim(fgets(STDIN));\n$nums = explode(\" \",$line2);\nfor ($i=0;$i<$n[0];$i++)\n{\n    if ($nums[$i]!=0)\n    {\n        if ($nums[$i] >= $nums[$n[1]-1]) {\n            $reg++;\n        }\n    }\n}\necho $reg;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b3151bc13866e065ac620e4db9e4c0b4", "src_uid": "193ec1226ffe07522caf63e84a7d007f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\t$file=fopen(\"php://stdin\",\"r\");\n\tlist($n,$k)=fscanf($file,\"%d%d\");\n\t$line=fgets($file,1000000);\n\t$arr=array();\n\t$value=0;  $check=false;\n\tfor($i=0;  $i<=strlen($line)-1;  $i++) {\n\t\t$ch=substr($line,$i,1);\n\t\tif (!is_numeric($ch)) {  $check=false;  array_push($arr,$value);  $value=0;  }\n\t\telse {  $check=true;  $value=$value*10+(int)$ch;  }\n\t}\n\tif ($check) array_push($arr,$value);\n//\tfor($i=0;  $i<=count($arr)-1;  $i++) echo $arr[$i].\" \";  echo \"\\n\";\n\tsort($arr);\n\t$ans=0;\n\tfor($i=count($arr)-1;  $i>=0;  $i--) if ($arr[$i]==0) break;\n\telse if ($i>=count($arr)-$k) $ans++;\n\telse if ($arr[$i]==$arr[$i+1]) $ans++;\n\telse break;\n\techo $ans;\n\tfclose($file);\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e645c2faccbc421dc0242b48ff6f02f4", "src_uid": "193ec1226ffe07522caf63e84a7d007f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(' ', fgets(STDIN));\n$b = explode(' ', fgets(STDIN));\n$c = (int)($a[1] - 1);\n$n = 0;\nfor($i=0; $i < (int)$a[0]; $i++) {\n\tif($i > $c && (int)$b[$i] < (int)$b[$c]) break;\n\tif((int)$b[$i] > 0 && (int)$b[$i] >= (int)$b[$c]) $n++;\n}\nprintf(\"%d\", $n);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "d34fd9a10d590045db92425a0bcc2d50", "src_uid": "193ec1226ffe07522caf63e84a7d007f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n \n$row1 = explode(' ',trim(fgets(STDIN)));\n$row2 = explode(' ',trim(fgets(STDIN)));\n    \n$all = $row1[0];\n$less = $row1[1]-1;\n \n$less_score = $row2[$less];\n \n$winner = 0;\nforeach($row2 as $each){\n    if($each>=$less_score && $each>0)\n        $winner++;\n}\n \necho $winner;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e3d23a8c17e7c64e8903399f57f2ac19", "src_uid": "193ec1226ffe07522caf63e84a7d007f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n,$k)=explode(\" \",trim(fgets(STDIN)));\n$arr=explode(\" \",trim(fgets(STDIN)));\n$c=0;\nfor($i=0;$i<$n;$i++)\n{\n    if($arr[$i]>=$arr[$k-1] && $arr[$i] > 0)\n        $c++;\n}\nprint ($c);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "2ad5006565ab5d939fa768f5a5c497c4", "src_uid": "193ec1226ffe07522caf63e84a7d007f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n/**\n * http://codeforces.com/problemset/problem/158/A\n * \n * «Участник выходит в следующий раунд соревнований, если он набрал не меньше баллов, \n * чем участник, занявший k-е место, при условии, \n * что набранное им число баллов строго положительно...» — выдержка из правил соревнований.\n * \n * Всего в соревновании было n участников (n ≥ k), и вам уже известны их баллы. \n * Определите, сколько участников выйдет в следующий раунд.\n * \n * Входные данные\n * В первой строке входных данных записаны два целых числа n и k (1 ≤ k ≤ n ≤ 50), \n * разделенных единичным пробелом.\n * Во второй строке записаны n целых чисел, разделенных единичными пробелами, \n * a1, a2, ..., an (0 ≤ ai ≤ 100), где ai — количество баллов, набранных участником на i-ом месте. \n * Числа в заданной последовательности не возрастают (то есть для всех i от 1 до n - 1 выполняется ai ≥ ai + 1).\n * \n * Выходные данные\n * Выведите одно целое число — искомое количество участников, в соответствии с правилами.\n */\n\n\nlist($n, $k) = explode(' ', fgets(STDIN));\n$n = (int)$n;\n$k = (int)$k;\n\n$i = 0;\n$points = [];\nforeach (explode(' ', fgets(STDIN)) as $is) {\n\t$points[++$i] = (int)$is;\n}\n\n$ptsToNextRound = (int)$points[$k];\n\n$maxParticipants = $k-1;\nif ($ptsToNextRound>0) {\n\tfor ($i=$k; $i<=$n; $i++) {\n\t\tif ($points[$i] < $ptsToNextRound) {\n\t\t\tbreak;\n\t\t}\n\t\t$maxParticipants = $i;\n\t}\n}\n\n$cntToNextRound = 0;\nfor ($i=1; $i<=$maxParticipants; $i++) {\n\tif ($points[$i]>0) {\n\t\t$cntToNextRound++;\n\t}\n}\n\necho $cntToNextRound . PHP_EOL;\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a68bbe75b56b4612b04e59a0af9ec9f8", "src_uid": "193ec1226ffe07522caf63e84a7d007f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $k) = explode(\" \", trim(fgets(STDIN)));\n$a = explode(\" \", trim(fgets(STDIN)));\n\n$template = $a[$k-1];\n\n$result = array_filter($a, function($item) use ($template) {\n    return ($item >= $template && $item > 0) ?  true : false;\n});\necho count($result);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "23c03c91bbc972e4aa4d2e8ddfa7563e", "src_uid": "193ec1226ffe07522caf63e84a7d007f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = explode(\" \",rtrim(fgets(STDIN)));\n$input2 = explode(\" \",rtrim(fgets(STDIN)));\n$n=$input[0];\n$k=$input[1];\n$c=0;\nfor ($x = 0; $x < $n; $x++) {\n  if($input2[$x]>0){\n    if($input2[$x]>=$input2[$k-1]){\n      $c++;\n    }\n    \n  }\n}\necho $c;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a0d6e3a3797dcfc5fbbba730de84999c", "src_uid": "193ec1226ffe07522caf63e84a7d007f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s1=fgets(STDIN);\n$s2=fgets(STDIN);\n$sa1=explode(\" \",$s1);\n$sa2=explode(\" \",$s2);\n\n$number=(int)$sa1[0];\n$position=$sa1[1];\n$position=(int)$position-1;\n\n$score=(int)$sa2[$position];\n\n$sum=0;\n\nfor($i=0;$i<=$number;$i++)\n{\n    if(($sa2[$i]!=0)and($sa2[$i]>=$score)) $sum++; else;\n}\n\nfputs(STDOUT, \"$sum\");\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0a2cc6830bd9c7e0b1ea2b24d6b5ba10", "src_uid": "193ec1226ffe07522caf63e84a7d007f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction powCounter($T, $S, $q)\n{\n    $t = 0;\n    while ($S < $T) {\n        $S *= $q;\n        $t++;\n    }\n\n    echo $t;\n}\n\n//$file = fopen('input.in', 'r');\n$file = STDIN;\nlist($T, $S, $q) = explode(\" \", trim(fgets($file)));\npowCounter($T, $S, $q);", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "105534ced604a3107bc77149793cc956", "src_uid": "0d01bf286fb2c7950ce5d5fa59a17dd9", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction powCounter($T, $S, $q)\n{\n    $Ts = $T / $S;\n    $t = 0;\n    while ($Ts > 1) {\n        $Ts /= $q;\n        $t++;\n    }\n\n    echo $t;\n}\n\n$file = STDIN;\nlist($T, $S, $q) = explode(\" \", trim(fgets($file)));\npowCounter($T, $S, $q);\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "05706fc5b87df435899e1c1a35d04ee5", "src_uid": "0d01bf286fb2c7950ce5d5fa59a17dd9", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction powCounter($T, $S, $q)\n{\n    $Ts = $T / $S;\n    $t = 0;\n    while ($Ts > 1) {\n        $Ts /= $q;\n        $t++;\n    }\n\n    return $t;\n}\n\n//$file = fopen('input.in', 'r');\n$file = STDIN;\nlist($T, $S, $q) = explode(\" \", trim(fgets($file)));\necho powCounter($T, $S, $q);", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "a549fecc6d2817147bd69d0d03129c25", "src_uid": "0d01bf286fb2c7950ce5d5fa59a17dd9", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction powCounter($T, $S, $q)\n{\n    $Ts = $T / $S;\n    $t = 0;\n    while ($Ts > 1) {\n        $Ts /= $q;\n        $t++;\n    }\n\n    echo $t;\n}\n\n//$file = fopen('input.in', 'r');\n$file = STDIN;\nlist($T, $S, $q) = explode(\" \", trim(fgets($file)));\npowCounter($T, $S, $q);\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "dbc21b7d149d7819a977f32bbba0b86f", "src_uid": "0d01bf286fb2c7950ce5d5fa59a17dd9", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction powCounter($T, $S, $q)\n{\n    $Ts = $T / $S;\n    $t = 0;\n    while ($Ts > 1) {\n        $Ts /= $q;\n        $t++;\n    }\n\n    return $t;\n}\n\n$file = STDIN;\nlist($T, $S, $q) = explode(\" \", trim(fgets($file)));\necho powCounter($T, $S, $q);", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "f4793a133d6d8fa476f9070ccf7c0163", "src_uid": "0d01bf286fb2c7950ce5d5fa59a17dd9", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $stdin = fopen('php://stdin', 'r');\n    $stdout = fopen('php://stdout', 'w');\n    $matrix[0] = fgets($stdin);\n    $matrix[1] = fgets($stdin);\n    $matrix[2] = fgets($stdin);\n    \n    for($i=0;$i<3;++$i){\n        for($j=0;$j<3;++$j){\n            if($matrix[$i][$j] != $matrix[2-$i][2-$j]) {\n                fputs($stdout, \"NO\");\n                return;\n            }\n        }\n    }\n    fputs($stdout, \"YES\");\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "bd04f25ac92a8a631b178a69ceaf7576", "src_uid": "6a5fe5fac8a4e3993dc3423180cdd6a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$in = 'php://stdin';\n\t//$in = 'input.txt';\n\n\t$input = fopen($in, \"r\");\n\n\t$s[] = fgets($input);\n\t$s[] = fgets($input);\n\t$s[] = fgets($input);\n\n\techo ($s[0][0]==$s[2][2] && $s[0][1]==$s[2][1] && $s[0][2]==$s[2][0] && $s[1][0]==$s[1][2])?\"YES\":\"NO\";\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "2ea56eea8f5dbcb6c5e5e46b4ed50e1c", "src_uid": "6a5fe5fac8a4e3993dc3423180cdd6a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$board = array();\nfor ($i = 0; $i < 3; $i++)\n{\n    $board[$i] = rtrim(fgets(STDIN));\n}\nif (calc2($board)) echo \"YES\\n\";\nelse echo \"NO\\n\";\nreturn 0;\n\nfunction calc2($board)\n{\n    for ($i = 0; $i < 3; $i++)\n    {\n        for ($j = 0; $j < 3; $j++)\n        {\n            if ($board[$i][$j] != $board[2 - $i][2 - $j]) return false;\n        }\n    }\n    return true;\n}\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "83209a8d760dfb5b77bea5734e96b135", "src_uid": "6a5fe5fac8a4e3993dc3423180cdd6a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$buttons = '';\nfor ($i = 0; $i < 3; $i++) {\n    $line = fscanf(STDIN, \"%s\");\n    $buttons .= $line[0];\n}\nfor ($i = 0; $i < 4; $i++) {\n    if ($buttons[$i] != $buttons[8-$i]) {\n        echo 'NO';\n        return;\n    }\n}\necho 'YES';", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "fc60b1b451601644f63bbf585f001802", "src_uid": "6a5fe5fac8a4e3993dc3423180cdd6a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  $fr = fopen(\"php://stdin\", \"r\");\n  $fw = fopen(\"php://stdout\", \"w\");\n \n  fscanf($fr, \"%s\", $r1);\n  fscanf($fr, \"%s\", $r2);\n  fscanf($fr, \"%s\", $r3);   \n \n  function chk()\n  {\n    global $r1, $r2, $r3;\n    return ($r1[0] == $r3[2]) &&\n           ($r1[1] == $r3[1]) &&\n           ($r1[2] == $r3[0]) &&\n           ($r2[0] == $r2[2]);\n  }\n \n  if (chk())\n  {\n    fprintf($fw, \"YES\");\n  }\n  else\n  {\n    fprintf($fw, \"NO\");\n  }\n \n  fclose($fr);\n  fclose($fw);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "465bc9ff862f77e36a128e97e2b8d475", "src_uid": "6a5fe5fac8a4e3993dc3423180cdd6a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  $fr = fopen(\"php://stdin\", \"r\");\n  $fw = fopen(\"php://stdout\", \"w\");\n  //fscanf($fr, \"%d\", $d);\n  //fprintf($fw, \"%d\\n\", $d);\n  fscanf($fr, \"%s\", $r1);\n  fscanf($fr, \"%s\", $r2);\n  fscanf($fr, \"%s\", $r3);   \n  \n  function chk()\n  {\n    global $r1, $r2, $r3;\n    return ($r1[0] == $r3[2]) &&\n           ($r1[1] == $r3[1]) && \n           ($r1[2] == $r3[0]) &&\n           ($r2[0] == $r2[2]);\n  }\n  \n  if (chk())\n  {\n    fprintf($fw, \"YES\");\n  }\n  else\n  {\n    fprintf($fw, \"NO\");\n  }\n   \n  fclose($fr);\n  fclose($fw);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "be01029333ef866c6bf3fdb49d515706", "src_uid": "6a5fe5fac8a4e3993dc3423180cdd6a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  $p = array();\n  \n  $p[] = trim(fgets(STDIN));\n  $p[] = trim(fgets(STDIN));\n  $p[] = trim(fgets(STDIN));\n  \n  $ok = true;\n  \n  if($p[0][0] != $p[2][2]) {\n    $ok = false;\n  }\n  if($p[0][1] != $p[2][1]) {\n    $ok = false;\n  }\n  if($p[0][2] != $p[2][0]) {\n    $ok = false;\n  }\n  if($p[1][0] != $p[1][2]) {\n    $ok = false;\n  }\n  fwrite(STDOUT, $ok ? 'YES' : 'NO');  \n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "30f596f52599daa87e5713302a2eab5a", "src_uid": "6a5fe5fac8a4e3993dc3423180cdd6a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$stdin = fopen(\"php://stdin\", \"r\");\n$stdout = fopen(\"php://stdout\", \"w\");\n\nfscanf($stdin, \"%s\", $r1);\nfscanf($stdin, \"%s\", $r2);\nfscanf($stdin, \"%s\", $r3);\n\nfunction check() {\n    global $r1, $r2, $r3;\n    return ($r1[0] == $r3[2]) && \n    ($r1[1] == $r3[1]) &&\n    ($r1[2] == $r3[0]) &&\n    ($r2[0] == $r2[2]);    \n}\n\nif(check()) {\n    fprintf($stdout, \"YES\");\n} else {\n    fprintf($stdout, \"NO\");\n}\n\nfclose($stdin);\nfclose($stdout);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7f330c6841d2ac080a7fce8d231b3185", "src_uid": "6a5fe5fac8a4e3993dc3423180cdd6a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdout = fopen('php://stdout', 'w');\n//fputs(STDOUT, \"Vhodnie dannie:  \");\n$h = fopen('php://stdin', 'r');\n$r1 = trim(fgets($h));\n$r2 = trim(fgets($h));\n$r3 = trim(fgets($h));\n//fputs(STDOUT, \"Vihodnie dannie:  \");\n$s[1]=$r1[0];\n$s[2]=$r1[1];\n$s[3]=$r1[2];\n$s[4]=$r2[0];\n$s[5]=$r2[1];\n$s[6]=$r2[2];\n$s[7]=$r3[0];\n$s[8]=$r3[1];\n$s[9]=$r3[2];\n$run=true;\nfor($i=1; $i<=9; $i++)\n{\n    if (($s[$i]!='X')&&($s[$i]!='.'))\n    {\n        $run=false;\n        }\n    }\nif ($run)\n{\n$f=true;\nfor ($i=1; $i<=4; $i++)\n{\n    if ($s[$i]!=$s[10-$i]) {$f=false;}\n    }\nif ($f) {fputs(STDOUT, \"YES\");}\nelse {fputs(STDOUT, \"NO\");}\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "906e5adc30ef88135591b224d13c6672", "src_uid": "6a5fe5fac8a4e3993dc3423180cdd6a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$fr = fopen(\"php://stdin\", \"r\");\n$fw = fopen(\"php://stdout\", \"w\");\n \nfscanf($fr, \"%s\", $r1);\nfscanf($fr, \"%s\", $r2);\nfscanf($fr, \"%s\", $r3);   \n \nfunction chk() {\n    global $r1, $r2, $r3;\n    return ($r1[0] == $r3[2]) &&\n           ($r1[1] == $r3[1]) &&\n           ($r1[2] == $r3[0]) &&\n           ($r2[0] == $r2[2]);\n}\nif (chk()) fprintf($fw, \"YES\");\nelse fprintf($fw, \"NO\");\nfclose($fr);\nfclose($fw);\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "d9a6bd597b3305762ef1a236b0362833", "src_uid": "6a5fe5fac8a4e3993dc3423180cdd6a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = explode(\" \", trim(fgets(STDIN)));\n$n = $input[0];\n$m = $input[1];\n$ans = -1;\nfor($i=(int)($n/2);$i>=0;$i--)\n\tif(($n-$i)%$m==0){\n\t\t$ans = (int)($n-$i);\n        break;\n\t}\necho $ans;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "fc2cc3e46d9f999178a39a730e845eea", "src_uid": "0fa526ebc0b4fa3a5866c7c5b3a4656f", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    list( $n, $m ) = explode(\" \", trim(fgets(STDIN)));\n    $max = intval($n/2);\n    $cnt = $max + $n%2;\n    while( $cnt % $m )\n    {\n        if($max)\n        {\n            $cnt++;\n            $max--;\n        }\n        else\n        {\n            $cnt = -1;\n            break;\n        }\n    }\n    \n    echo $cnt . PHP_EOL;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "bc4a65e55a15721cc3c3db59522e7080", "src_uid": "0fa526ebc0b4fa3a5866c7c5b3a4656f", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nif($a < $b)\n{\n    print \"-1\";\n}\nelse\n{\n    $c = $a % 2;\n    $d = floor($a / 2);\n    if($c == 0)\n    {\n        $e = 0;\n        for($x = 1; $x <= $d; $x++)\n        {\n            if($d % $b == 0)\n            {\n                $e = 1;\n                break;\n            }\n            else\n            {\n                $d++;\n            }\n        }\n        if($e == 0)\n        {\n            print \"-1\";\n        }\n        else\n        {\n            print $d;\n        }\n    }\n    else\n    {\n        $e = 0;\n        $d += 1;\n        for($x = 1; $x <= $d; $x++)\n        {\n            if($d % $b == 0)\n            {\n                $e = 1;\n                break;\n            }\n            else\n            {\n                $d++;\n            }\n        }\n        if($e == 0)\n        {\n            print \"-1\";\n        }\n        else\n        {\n            print $d;\n        }\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "4ad3a22358d09c88fc3745ad6d0de076", "src_uid": "0fa526ebc0b4fa3a5866c7c5b3a4656f", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$fh=fopen('php://stdin','r');\n$fh=trim(fgets(STDIN));\n//$ind=0;\n//while($s=fgets($fh,1024)){\n//while($s=explode(\" \",$fh)){\n  list($n,$m)=explode(\" \",$fh);\n  //$arr=explode(\" \",$fh);\n//}\n//echo $a .\" \". $b;\n//printr($arr);\nif($n<$m){\n    echo \"-1\";\n}else{\n    $j=1;\n    while(true){\n        $stairs=2*$j;\n        if($stairs==$n)break;\n        else if($stairs>$n){\n           --$stairs;\n           break;\n        }\n        ++$j;\n    }\n    while($j%$m){\n       ++$j;   \n    }\n    echo $j;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "a909765d471116ae55dc9ede34fd8d63", "src_uid": "0fa526ebc0b4fa3a5866c7c5b3a4656f", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdin = fopen(\"php://stdin\", 'r');\nfscanf($stdin, \"%d%d\", $n, $m);\nfclose($stdin);\n$res = -1;\nfor ($i = 0; $i <= $n; ++$i)\n{\n    if (($n - $i) % 2 == 0)\n    {\n        $j = ($n - $i) / 2;\n        if (($i + $j) % $m == 0 && ($res == -1 || $res > $i + $j))\n        {\n            $res = $i + $j;\n        }\n    }\n}\necho $res;\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "2d1b496743a7b5ae7633e369f3c52aa8", "src_uid": "0fa526ebc0b4fa3a5866c7c5b3a4656f", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//50A: Domino Piling\nlist($m, $n) = explode(\" \", trim(fgets(STDIN)));\n//$m = 3;\n//$n = 3;\nif ($m%2 == 0 && $n%2 == 0) {\n    $width = $m / 2;\n    echo $width * $n;\n} elseif ($m%2 == 0 && $n%2 == 1) {\n    $width = $m / 2;\n    echo $width * $n;\n} elseif ($m%2 == 1 && $n%2 == 0) {\n    $height = $n / 2;\n    echo $height * $m;\n} elseif ($m%2 == 1 && $n%2 == 1) {\n    $first = $m - 1;\n    $widthfirst = $first / 2;\n    $firstblock = $widthfirst * $n;\n    $lastrow = floor($n / 2);\n    echo $firstblock + $lastrow;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "87fa8b4e10d180a70a511049ff4852fb", "src_uid": "e840e7bfe83764bee6186fcf92a1b5cd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$input = STDIN;\n$output = STDOUT;\n\nfscanf($input,\"%d%d\",$m,$n);\nif($n%2 == 0) {\n    $domino = $n/2 * $m;\n} elseif ($m%2 == 0) {\n    $domino = $m/2 * $n;\n}else {\n    $domino = (int)($m/2) * $n + (int)($n/2);\n}\nfprintf($output,\"%d\",$domino);\n\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "b89af6e0927edba5c4590461a6c1c200", "src_uid": "e840e7bfe83764bee6186fcf92a1b5cd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=explode(\" \",fgets(STDIN));\necho intval($a[0]*$a[1]*0.5);\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "a4d8d9ebdb353d15b84b28d8471c539d", "src_uid": "e840e7bfe83764bee6186fcf92a1b5cd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$in=trim(fgets(STDIN));\n$input= explode(\" \", $in);\n$afull=$input[0]*$input[1];\n$acon=2;\n$num=$afull / $acon;\necho floor($num);\n\n?>\n", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "58b55d7dc0b314c637bc257ba1123b01", "src_uid": "e840e7bfe83764bee6186fcf92a1b5cd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($m,$n) = explode(' ',trim(fgets(STDIN)));\n\n\n$s = ($m*$n);\n\nif( $s > 1 )\n{\n    echo intVal($s/2);\n}else{\n    echo 0;\n}\n", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "b47829f6d085aed015486470dcc4ab8e", "src_uid": "e840e7bfe83764bee6186fcf92a1b5cd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction getStdIn(bool $asInt = false): array\n{\n    $stdIn = explode(' ', trim(fgets(STDIN)));\n\n    if ($asInt) {\n        foreach ($stdIn as $key => $value) {\n            $stdIn[$key] = (int)$value;\n        }\n    }\n\n    return $stdIn;\n}\n\nfunction stdOut($output)\n{\n    fwrite(STDOUT, $output);\n}\n\nfunction solve(): void\n{\n    [$m, $n] = getStdIn(true);\n    $fields = (int)($m * $n / 2);\n    stdOut($fields);\n}\n\nsolve();\n", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "61554b52a26879f62a5e5a842b3bd55a", "src_uid": "e840e7bfe83764bee6186fcf92a1b5cd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = explode(\" \",rtrim(fgets(STDIN)));\necho floor($input[0]*$input[1]/2);\n", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "a7a1e40ace7d75ba63fe667555e60906", "src_uid": "e840e7bfe83764bee6186fcf92a1b5cd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($x, $y) = explode(\" \", getLine());\n$w = max($x, $y);\n$h = min($x, $y);\n\necho floor($w/2)*$h + ($w%2)*floor($h/2) . PHP_EOL;\n\nfunction getLine()\n{\n    return trim(fgets(STDIN));\n}", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "f477495f82c6e2e79fd8cee84e104768", "src_uid": "e840e7bfe83764bee6186fcf92a1b5cd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \nfscanf(STDIN, \"%d %d\", $n, $m);\necho floor($n*$m/2);\n?>\n", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "9c62322e80b93dd97adacf659812d895", "src_uid": "e840e7bfe83764bee6186fcf92a1b5cd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($m, $n) = explode(' ', readline());\n\necho floor( $m*$n / 2);", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "56ebc3bd9f3215a94991d22a3b8719de", "src_uid": "e840e7bfe83764bee6186fcf92a1b5cd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \nfscanf(STDIN, \"%d %d\",$YY, $XX);\nwhile (fscanf(STDIN, \"%s\", $s))\n    $field[]=$s;\n\nfunction Find_and_mark($x,$y,$max_x,$max_y,&$cnt,&$field){\n    $test = Array(Array(0,1),Array(0,-1),Array(1,0),Array(-1,0));\n    if ($field[$y][$x]==\"P\"){\n        foreach ($test as $dt){\n            $chek_x = $x+$dt[0];\n            $chek_y = $y+$dt[1];\n            \n            if (($chek_x>=0)&&($chek_x<=$max_x)&&($chek_y>=0)&&($chek_y<=$max_y)){\n                if ($field[$chek_y][$chek_x]==\"W\"){\n                    $field[$chek_y][$chek_x]=\".\";\n                    $cnt++;\n                    break ;\n                }\n            }\n        }\n    }\n}\n    \n$cnt=0;\nfor ($x=0;$x<$XX;$x++)\n    for ($y=0;$y<$YY;$y++)\n        Find_and_mark($x,$y,$XX-1,$YY-1,$cnt,$field);\n\necho $cnt;  \n    \n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "5e1b77ef6a0e5cd68069481cf791e417", "src_uid": "969b24ed98d916184821b2b2f8fd3aac", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = strtolower(trim(fgets(STDIN)));\n$a = preg_replace(\"([aiueyo])\", \"\", $a);\n$a = preg_replace('/(\\w)/', '.\\1', $a);\nprint $a; \n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "260f8f887c9091ef55d491d13289fcad", "src_uid": "db9520e85b3e9186dd3a09ff8d1e8c1b", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=str_replace(\"\n\",\"\",fgets(STDIN));\n$a=strtolower($a);\n$a=str_replace(array(\"a\",\"e\",\"i\",\"o\",\"u\",\"y\"),\"\",$a);\n$a=str_split($a);\n$a=implode(\".\",$a);\necho \".\".$a;\n\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "333b78b89a8854a09e321b475bbf4ca2", "src_uid": "db9520e85b3e9186dd3a09ff8d1e8c1b", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$input = STDIN;\n$output = STDOUT;\n\n$vowels = array('a','o','y','u','e','i');\nfscanf($input,\"%s\",$str);\n$str = strtolower($str);\n$length = strlen($str);\n$result = \"\";\nfor($i=0; $i<$length; ++$i) {\n    if(!in_array($str[$i],$vowels)) {\n        $result .= \".{$str[$i]}\";\n    }\n}\nfprintf($output,$result);\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "9f2511fd4b8b55bc76c5b121a44f3177", "src_uid": "db9520e85b3e9186dd3a09ff8d1e8c1b", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$a = str_replace(array(\"a\",\"e\",\"y\",\"u\",\"i\",\"o\",\"A\",\"E\",\"Y\",\"U\",\"I\",\"O\"),\"\",$a);\n$a = preg_replace('/(.)/','.$1', $a);\necho strtolower($a);", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "3c0c421754964d9573ad8abbfcbed7ed", "src_uid": "db9520e85b3e9186dd3a09ff8d1e8c1b", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$word = trim(fgets(STDIN));\n$vowels = array(\"a\", \"o\", \"y\", \"e\", \"u\", \"i\");\n$word = strtolower($word);\n$result = \"\";\nfor ($i = 0; $i < strlen($word); $i++) {\n\tif (!in_array($word[$i], $vowels)) {\n\t\t$result = $result . '.' . $word[$i];\n\t}\n}\nfprintf(STDOUT, $result);\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "b9838d681b079523c3c0cc75635f7a01", "src_uid": "db9520e85b3e9186dd3a09ff8d1e8c1b", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$in = strtolower(trim(fgets(STDIN)));\n$in = preg_replace('/[aoyeui]/', '', $in);\n$in = preg_replace('/([a-z])/', '.$1', $in);\necho $in;\n\n//$res_arr .=\"\\n\";\n//print $res_arr;\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "4334dfa9326266becb8bef87cc9dae54", "src_uid": "db9520e85b3e9186dd3a09ff8d1e8c1b", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//First Get The Input.\n$input = filter_var(trim(file_get_contents(\"php://stdin\"),'\" \\' '),FILTER_SANITIZE_STRING);\n\n//First Tranfrom The Text To Lowercase.\n$input = strtolower($input);\n\n//Define The Vowels Characters.\n$vowels = array(\"a\",\"e\",\"u\",\"o\",\"y\",\"i\");\n\n$consonants = array(\"b\",\"c\",\"d\",\"f\",\"g\",\"h\",\"j\",\"k\",\"l\",\"m\",\"n\",\"p\",\"q\",\"r\",\"s\",\"t\",\n                    \"v\",\"w\",\"x\",\"z\");\n\n$output = \"\";\n\n//Loop Throw The String.\nfor($c = 0;$c < strlen($input);$c++) {\n    \n    //Check If The Character Is Not From Vowels.\n    if(!in_array($input[$c],$vowels) && in_array($input[$c],$consonants)) {\n\n        //Add a Dot Behind The Character.\n        $output .= \".\" . $input[$c];\n        \n    }\n    \n}\n\n//Return The String.\necho (string)$output;\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "747103bc26805576887a11e8f96201fd", "src_uid": "db9520e85b3e9186dd3a09ff8d1e8c1b", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(\"a\", \"e\", \"i\", \"o\", \"u\", \"y\");\n$c = array(\"b\", \"c\", \"d\", \"f\", \"g\", \"h\", \"j\", \"k\", \"l\", \"m\", \"n\", \"p\", \"q\", \"r\", \"s\", \"t\", \"v\", \"w\", \"x\", \"z\");\n$d = strtolower($a);\n$e = str_split($d);\n$f = count($e);\nfor($x = 0; $x < $f; $x++)\n{\n    for($y = 0; $y < count($b); $y++)\n    {\n        if($e[$x] == $b[$y])\n        {\n            unset($e[$x]);\n        }\n    }\n}\n$g = implode($e);\n$h = str_split($g);\n$i = \"\";\nfor($x = 0; $x < count($h); $x++)\n{\n    $j = \".\" . $h[$x];\n    $i .= $j;\n}\nprint $i;\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "03da5d2fdd5435c39643d626d9a6f546", "src_uid": "db9520e85b3e9186dd3a09ff8d1e8c1b", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = readline();\n$line = strtolower($line);\n$chr = str_split($line);\nfor ($i = 0; $i < sizeof($chr); $i++) {\n    if ($chr[$i] == 'a' || $chr[$i] == 'e' || $chr[$i] == 'i' || $chr[$i] == 'o' || $chr[$i] == 'u'|| $chr[$i] == 'y') {\n        $chr[$i] = null;\n    }\n\n}\nfor ($i = 0; $i < sizeof($chr); $i++) {\n    if ($chr[$i] != null) {\n        echo \".$chr[$i]\";\n    }\n}\n\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "87bb07d2289d17d1b088a2c9d7360b19", "src_uid": "db9520e85b3e9186dd3a09ff8d1e8c1b", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str = fgets(STDIN);\n\n$sogl = array(\"A\" => \"\", \"O\" => \"\", \"Y\" => \"\", \"E\" => \"\", \"U\" => \"\", \"I\" => \"\", \"a\" => \"\", \"o\" => \"\", \"y\" => \"\", \"e\" => \"\", \"u\" => \"\", \"i\" => \"\");\n\n$str = strtolower($str);\n$str = trim(strtr($str, \"AOYEUIaoyeui\", \"            \"));\n$str = str_replace(\" \", \"\", $str);\n\nfor ($i = 0; $i < strlen($str); $i++)\n{\n    $new_str .= \".\" . $str[$i];\n}\necho $new_str;\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "1d41d70eea1e738687398e7df6a662e5", "src_uid": "db9520e85b3e9186dd3a09ff8d1e8c1b", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = 0;\n$a += $c * 8;\nif($a >= $b)\n{\n     print \"0\";\n}\nelseif($c <= $d)\n{\n     print \"-1\";\n}\nelseif($c > $d)\n{\n     while(TRUE)\n     {\n          $a -= $d * 12;\n          $a += $c * 12;\n          $e++;\n          if($a >= $b)\n          {\n               break;\n          }\n     }\n     print $e;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "a41af79b3f0eb225e8765f3eade51a1b", "src_uid": "2c39638f07c3d789ba4c323a205487d7", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$result = trim(fgets(STDIN));\nlist($y, $w) = explode(' ', $result);\n$mn = max($y,$w)-1;\n$mn = 6-$mn;\n$ar = [\"0/1\",\"1/6\",\"1/3\",\"1/2\",\"2/3\",\"5/6\",\"1/1\"];\necho $ar[$mn].\"\\n\";", "lang_cluster": "PHP", "tags": ["math", "probabilities"], "code_uid": "290e9563dbb02bb9653ac1a566f78ab9", "src_uid": "f97eb4ecffb6cbc8679f0c621fd59414", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//=====================================\n// link: http://codeforces.com/contest/9/problem/A\n//=====================================\n\n// get inputs\nlist($yakko, $wakko) = explode(' ', trim(fgets(STDIN)));\n\n// solution\n// low: 6 - (max - 1) / 6\n$probabilities = ['1/1', '5/6', '2/3', '1/2', '1/3', '1/6'];\n\n$index = max($yakko, $wakko) - 1;\n\necho $probabilities[$index] . \"\\n\";\n", "lang_cluster": "PHP", "tags": ["math", "probabilities"], "code_uid": "1025c80dd75f0316c17fd2c36d56b393", "src_uid": "f97eb4ecffb6cbc8679f0c621fd59414", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = fgets(STDIN);\nlist($a, $b) = explode(\" \", $s);\n$j=max($a,$b);\nif ($j==1) {print (\"1/1\");};\nif ($j==2) {print (\"5/6\");};\nif ($j==6) {print (\"1/6\");};\nif ($j>1) {$j=7-$j; \nif(($j%2)==0) { print (($j/2).\"/\".\"3\");};\nif(($j%3)==0) { print (($j/3).\"/\".\"2\");};}\n?>", "lang_cluster": "PHP", "tags": ["math", "probabilities"], "code_uid": "e94e885517d3a257edc6b0d2aa722ded", "src_uid": "f97eb4ecffb6cbc8679f0c621fd59414", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($y, $w) = explode(' ',trim(fgets(STDIN)));\nif($y > $w) $m = $y; else $m = $w;\nswitch($m){\n case 1: print '1/1'; break;\n case 2: print '5/6'; break;\n case 3: print '2/3'; break;\n case 4: print '1/2'; break;\n case 5: print '1/3'; break;\n case 6: print '1/6'; break;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "probabilities"], "code_uid": "128a811cd3b8e2ec23edeeafd29d65f4", "src_uid": "f97eb4ecffb6cbc8679f0c621fd59414", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tlist ($y, $x) = explode(\" \", fgets(STDIN));\n\t$a = max ($x, $y);\nif($a == 6) { print \"1/6\"; }\nif($a == 5) { print \"1/3\"; }\nif($a == 4) { print \"1/2\"; }\nif($a == 3) { print \"2/3\"; }\nif($a == 2) { print \"5/6\"; }\nif($a == 1) { print \"1/1\"; }\n/* \tmayakin\n\tif (max ($arr)==1) { print \"1/1\";\n\t}elseif (max ($arr)==2) { print \"5/6\";\n\t}elseif (max ($arr)==3) { print \"1/2\";\n\t}elseif (max ($arr)==4) { print \"2/3\";\n\t}elseif (max ($arr)==5) { print \"1/3\";\n\t}elseif (max ($arr)==6) { print \"1/6\";\n\t}\n\n\tif (max ($arr)==1) { fwrite(STDOUT,\"1/1\")); }\n\tif (max ($arr)==2) { fwrite(STDOUT,\"5/6\")); }\n\tif (max ($arr)==3) { fwrite(STDOUT,\"1/2\")); }\n\tif (max ($arr)==4) { fwrite(STDOUT,\"2/3\")); } \n\tif (max ($arr)==5) { fwrite(STDOUT,\"1/3\")); }\n\tif (max ($arr)==6) { fwrite(STDOUT,\"1/6\")); }\n\n\n\tif (max ($arr)==1) { echo (\"1/1\"); }\n\tif (max ($arr)==2) { echo (\"5/6\"); }\n\tif (max ($arr)==3) { echo (\"1/2\"); }\n\tif (max ($arr)==4) { echo (\"2/3\"); } \n\tif (max ($arr)==5) { echo (\"1/3\"); }\n\tif (max ($arr)==6) { echo (\"1/6\"); }\n\n\nlist($y, $w) = explode(\" \", fgets(STDIN));\n$a = min(6 - $y, 6 - $w) + 1;\nif($a == 1) { print \"1/6\"; }\nif($a == 2) { print \"1/3\"; }\nif($a == 3) { print \"1/2\"; }\nif($a == 4) { print \"2/3\"; }\nif($a == 5) { print \"5/6\"; }\nif($a == 6) { print \"1/1\"; }\n*/\n\n?>\n\n\n", "lang_cluster": "PHP", "tags": ["math", "probabilities"], "code_uid": "aa7bb077cecb2dba14d259a69aa4da8b", "src_uid": "f97eb4ecffb6cbc8679f0c621fd59414", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$line = trim(fgets(STDIN));\n$points = explode(\" \", $line);\n\n$maximum = max($points);\n\n$P = (7 - $maximum)/6;\n\nswitch ($P) {\n    case 0: \n        $P = '0/1';\n        break;\n    case 1:\n        $P = '1/1';\n        break;\n    case 1/6:\n        $P = '1/6';\n        break;\n    case 2/6:\n        $P = '1/3';\n        break;\n    case 3/6:\n        $P = '1/2';\n        break;\n    case 4/6:\n        $P = '2/3';\n        break;\n    case 5/6:\n        $P = '5/6';\n        break;\n}\n\necho $P;\n?>", "lang_cluster": "PHP", "tags": ["math", "probabilities"], "code_uid": "565ddf9cd34c8be099c7d71aa9b8733c", "src_uid": "f97eb4ecffb6cbc8679f0c621fd59414", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN,\"%u %u\",$a,$b);\n    $m=7-max($a,$b);\n    $d=($m%3 ? 1:3)*($m%2 ? 1:2);\n    echo ($m/$d).'/'.(6/$d);\n?>", "lang_cluster": "PHP", "tags": ["math", "probabilities"], "code_uid": "4154c11287ea44fd48489b814b1d0b05", "src_uid": "f97eb4ecffb6cbc8679f0c621fd59414", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line=trim(fgets(STDIN));\n$eyes=explode(\" \",$line);\n$max=0;\nfor($i=0;$i<2;$i+=1){\n   if($max < 0+$eyes[$i]){\n     $max=0+$eyes[$i];\n   }\n}\n$amari=6-$max+1;\n$max=6;\n$sosu=array(2,3);\nfor($i=0;$i<2;$i+=1){\n   if($amari % $sosu[$i] == 0){\n     $amari=$amari/$sosu[$i];\n     $max=$max/$sosu[$i];\n   }\n}\nprint($amari.\"/\".$max);\n?>\n\n\n", "lang_cluster": "PHP", "tags": ["math", "probabilities"], "code_uid": "b7f5bbe05ef4f7fc7781e5c3f0078b93", "src_uid": "f97eb4ecffb6cbc8679f0c621fd59414", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//\t$x = 3;\n//\t$y = 4 ;\n\n/*\t$list ($y, $x) = explode(fgets(STDIN));\n\t$arr =[];\n\t$arr []= $y;\n\t$arr []= $x;\n\n\tif (max ($arr)==1) { print \"1/1\";\n\t}elseif (max ($arr)==2) { print \"5/6\";\n\t}elseif (max ($arr)==3) { print \"1/2\";\n\t}elseif (max ($arr)==4) { print \"2/3\";\n\t}elseif (max ($arr)==5) { print \"1/3\";\n\t}elseif (max ($arr)==6) { print \"1/6\";\n\t}\n\n\tif (max ($arr)==1) { fwrite(STDOUT,\"1/1\")); }\n\tif (max ($arr)==2) { fwrite(STDOUT,\"5/6\")); }\n\tif (max ($arr)==3) { fwrite(STDOUT,\"1/2\")); }\n\tif (max ($arr)==4) { fwrite(STDOUT,\"2/3\")); } \n\tif (max ($arr)==5) { fwrite(STDOUT,\"1/3\")); }\n\tif (max ($arr)==6) { fwrite(STDOUT,\"1/6\")); }\n\n\n\tif (max ($arr)==1) { echo (\"1/1\"); }\n\tif (max ($arr)==2) { echo (\"5/6\"); }\n\tif (max ($arr)==3) { echo (\"1/2\"); }\n\tif (max ($arr)==4) { echo (\"2/3\"); } \n\tif (max ($arr)==5) { echo (\"1/3\"); }\n\tif (max ($arr)==6) { echo (\"1/6\"); }\n*/\n\nlist($y, $w) = explode(\" \", fgets(STDIN));\n$a = min(6 - $y, 6 - $w) + 1;\nif($a == 1) { print \"1/6\"; }\nif($a == 2) { print \"1/3\"; }\nif($a == 3) { print \"1/2\"; }\nif($a == 4) { print \"2/3\"; }\nif($a == 5) { print \"5/6\"; }\nif($a == 6) { print \"1/1\"; }\n?>\n\n\n", "lang_cluster": "PHP", "tags": ["math", "probabilities"], "code_uid": "49d30a3e7f252ff0cd87ea98ce6e5d14", "src_uid": "f97eb4ecffb6cbc8679f0c621fd59414", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\n#error_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\n###### /IO ######\n\nfunction nod($a, $b) {\n\twhile ($a <> 0 && $b <> 0) {\n\t\tif ($a > $b)\n\t\t\t$a = $a % $b;\n\t\telse\n\t\t\t$b = $b % $a;\n\t\t$nod = $a + $b;\n\t}\n\treturn $nod;\n}\n\nfunction getAnswer($is_test = false, $f = false) {\n\tif ($is_test === false) {\n\t\t$f = STDIN;\n\t}\n\t/* begin body */\n\tlist($n1, $n2) = readStringExplodeNum($f, ' ', true);\n\n\t$goodCnt = 6 - max($n1, $n2) + 1;\n\t$nod = nod($goodCnt, 6);\n\t$base = 6;\n\t$goodCnt/=$nod;\n\t$base/=$nod;\n\n\techo \"{$goodCnt}/{$base}\";\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["math", "probabilities"], "code_uid": "21ccb12b2f4d40c4ecbedc1be6a09c10", "src_uid": "f97eb4ecffb6cbc8679f0c621fd59414", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nprint strnatcasecmp(fgets(STDIN), fgets(STDIN));\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "d1f0a4e4027740b72465f8202cfe84c1", "src_uid": "ffeae332696a901813677bd1033cf01e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$s = fopen(\"php://stdin\", 'r');\n\t//$s = fopen(\"in.txt\", 'r');\n\t$ss = strtolower(stream_get_contents($s));\n\t$s1='';\n\t$s2='';\n\t$dd = true;\n\t$i=0;\n\n\twhile ($i<strlen($ss)){\n\t\tif ($dd){\n\t\t\t$s1 .= $ss[$i];\n\t\t}else{\n\t\t\t$s2 .= $ss[$i];\n\t\t}\n\t\t$i++;\n\t\tif ($dd && !($ss[$i] >='a' && $ss[$i] <= 'z')){\n\t\t\t$dd = false;\n\t\t\twhile (!($ss[$i] >='a' && $ss[$i] <= 'z'))\n\t\t\t\t$i++;\n\t\t}\n\t}\n\t//echo $ss.'|'.$s1.'|'.$s2.'<br>';\n\t$rec = 0;\n\t$i=0;\n\twhile ($s1[$i] == $s2[$i] && $i<strlen($s1)){\n\t\t$i++;\n\t}\n\tif ($i==strlen($s1))\n\t\tprint '0';\n\telse if ($s1[$i]> $s2[$i])\n\t\tprint '1';\n\telse\n\t\tprint '-1';\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "57eb2c5bee5de5fdc8d9f313442ece75", "src_uid": "ffeae332696a901813677bd1033cf01e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$str1 = readline();\n$str2 = readline();\n$cndtn = 0;\nfor($i = 0; $i < strlen($str1); $i++)\n{\n\n\tif(ord($str1[$i])%32 < ord($str2[$i])%32)\n\t{\n\t\techo \"-1\\n\";\n\t\t$cndtn = 1;\n\t\tbreak;\n\t}\n\telse if(ord($str1[$i])%32 > ord($str2[$i])%32)\n\t{\n\t\techo \"1\\n\";\n\t\t$cndtn = 1;\n\t\tbreak;\n\t}\n}\n\tif($cndtn == 0)\n\t\techo \"0\\n\";\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "bc7305be527fbcc7388a218390b1d763", "src_uid": "ffeae332696a901813677bd1033cf01e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stroka1 = trim(fgets(STDIN));\n$stroka2 = trim(fgets(STDIN));\n\n$k = strcasecmp($stroka1, $stroka2);\nif ($k == 0)\n    echo \"0\";\nelse if ($k > 0)\n    echo \"1\";\nelse\n    echo \"-1\";\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "7e5ca3ef57b7bf3edf6a45b88b07e505", "src_uid": "ffeae332696a901813677bd1033cf01e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n1 = strtolower(trim(fgets(STDIN)));\n$n2 = strtolower(trim(fgets(STDIN)));\n\nif($n1 == $n2) print 0;\nelseif($n1 > $n2) print 1;\nelse print -1;\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "55f50b846b8a1531c8c1ba5dc70af114", "src_uid": "ffeae332696a901813677bd1033cf01e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction solution($s1, $s2)\n{\n    $s1 = strtolower($s1);\n    $s2 = strtolower($s2);\n    if ($s1 < $s2) {\n        return -1;\n    } elseif ($s1 > $s2) {\n        return 1;\n    } else {\n        return 0;\n    }\n}\n\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n\necho solution($a, $b);\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "1d95d474dbe7963e5ff609a04fd71155", "src_uid": "ffeae332696a901813677bd1033cf01e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=strtolower(readline());\n$b=strtolower(readline());\nif($a==$b)\n echo 0;\nelseif($a>$b)\n\techo 1;\nelse\n\techo -1;", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "8f54695bcf732220a0aa501e7a9481be", "src_uid": "ffeae332696a901813677bd1033cf01e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$data = [];\nwhile($item = fgets(STDIN)) {\n    $data[] = strtolower($item);\n}\n\nif($data[0] === $data[1]) {\n    echo 0;\n}else {\n    $sum1 = 0;\n    $sum2 = 0;\n    $len = strlen($data[0]) - 1;\n    for($i = 0; $i <= $len; $i++) {\n        if(ord($data[0][$i]) > ord($data[1][$i])) {\n            $value = 1;\n            break;\n        } elseif (ord($data[0][$i]) < ord($data[1][$i])) {\n            $value = -1;\n            break;\n        }\n    }\n\n    echo $value;\n}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "b040d1563bf311a7d858adc830d6fcbc", "src_uid": "ffeae332696a901813677bd1033cf01e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction dd(...$args)\n{\n    var_dump(...$args);\n    die;\n}\n\ndefine('TXTIN', fopen('input.txt', 'r'));\ndefine('TXTOUT', fopen('output.txt', 'w'));\n\n//$input = TXTIN;\n$input = STDIN;\n//$output = TXTOUT;\n$output = STDOUT;\n\nfunction foo($s1, $s2)\n{\n    return strcasecmp($s1, $s2);\n}\n\n$r = 0;\n\nlist($s1) = fscanf($input, \"%s\\n\");\nlist($s2) = fscanf($input, \"%s\");\n\n$r = foo($s1, $s2);\n\nfwrite($output, $r === 0 ? 0 : ($r < 0 ? -1 : 1));\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "643cdbf92286478bcc41bd3dd88c815b", "src_uid": "ffeae332696a901813677bd1033cf01e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$inputString = fgets(STDIN);\n$firstString = strtolower(rtrim($inputString));\n\n$inputString = fgets(STDIN);\n$secondString = strtolower(rtrim($inputString));\n\necho ($firstString > $secondString) ? '1' :\n    ( ($secondString > $firstString) ? '-1' : '0' );\necho PHP_EOL;\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "58bb2fc583e5b61fb1e6b3a96a26586b", "src_uid": "ffeae332696a901813677bd1033cf01e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = fgets(STDIN);\n$array = explode(\" \", fgets(STDIN));\n$output = [];\nfor($i=0;$i<$n;$i++){\n    $output[] =(int)$array[$i];\n}\nsort($output);\nfor($i=0;$i<$n;$i++){\n    echo $output[$i].' ';\n}", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "c0d292ffcd04d6d9569eadf87ef84271", "src_uid": "ae20712265d4adf293e75d016b4b82d8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$stream = fopen(\"php://stdin\", \"r\");\n\t$input = stream_get_contents($stream);\n    $ins = preg_split(\"/[\\s]+/\", $input);\n    $cnt = 0;\n    $N = $ins[$cnt++];\n    for($i = 0; $i < $N; $i++) $arr[$i] = $ins[$cnt++];\n    sort($arr);\n\tfor($i = 0; $i < $N; $i++)\n\t\techo \"{$arr[$i]} \";\n\techo \"\\n\";\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "62bd99c669ebfc13e1100e1799f2d699", "src_uid": "ae20712265d4adf293e75d016b4b82d8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$n);\n$line=trim(fgets(STDIN));\n$singleValue=explode(' ', $line);\nfor($i=0;$i<$n;$i++){\n\tfor($j=0;$j<$n-1;$j++){\n\t\tif($singleValue[$i]<$singleValue[$j])\n\t\t{\n\t\t\t$singleValue[$i]=$singleValue[$i]+$singleValue[$j];\n\t\t\t$singleValue[$j]=$singleValue[$i]-$singleValue[$j];\n\t\t\t$singleValue[$i]=$singleValue[$i]-$singleValue[$j];\n\n\t\t}\n\n\t}\n}\nfor($i=0;$i<$n;$i++)\n\techo \"$singleValue[$i] \";\n", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "62b484a9254312bd3eb3dd14154a8c96", "src_uid": "ae20712265d4adf293e75d016b4b82d8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf (STDIN, \"%d\", $n);\n    $arr = explode(\" \", trim(fgets(STDIN)));\n    sort($arr);\n        for ($i = 0; $i < $n; $i++){\n            echo ($arr[$i] . \" \");\n        }", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "67745c4afe0e6836434fe4a6804535c1", "src_uid": "ae20712265d4adf293e75d016b4b82d8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\n$n = trim(fgets($f));\n\n$a = explode(\" \",trim(fgets($f)));\n\nsort($a);\n$s = implode(\" \",$a);\n\nprint_r($s);", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "9267997d794da2db509493051a703fa5", "src_uid": "ae20712265d4adf293e75d016b4b82d8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$dir = fopen(\"php://stdin\", 'r');;\n$input= file('php://stdin');\n$arr= explode(' ',trim($input[1]));\nsort($arr);\necho  implode(' ',$arr);", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "64e988eb6c2b4b3ee38cfc674239f805", "src_uid": "ae20712265d4adf293e75d016b4b82d8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction r(){\n    return trim(fgets(STDIN));\n}\nfunction w($str = ''){\n    echo $str . \"\\r\\n\";\n}\n\n$count = r();\n$col = explode(' ', r());\n\n\ndo{\n    $end = true;\n    for($i = 0; $i < $count-1; $i++){\n        if($col[$i + 1] > $col[$i]){\n            $t = $col[$i + 1];\n            $col[$i + 1] = $col[$i];\n            $col[$i] = $t;\n\n            $end = false;\n        }\n    }\n}while(!$end);\n\n$col = array_reverse($col);\nw(implode(' ', $col));", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "8374b5f55c6688004d35e1d7d9649005", "src_uid": "ae20712265d4adf293e75d016b4b82d8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = $b;\nrsort($c);\n$d = $c[0];\n$e = array_fill(0, $d, 0);\nfor($x = 0; $x < $a; $x++)\n{\n    for($y = 0; $y < $b[$x]; $y++)\n    {\n        $e[$y]++;\n    }\n}\n$f = array_fill(0, $a, 0);\n$g = $a;\nfor($x = 0; $x < $a; $x++)\n{\n    for($y = 0; $y < $d; $y++)\n    {\n        if($e[$y] >= $g)\n        {\n            $f[$x]++;\n        }\n    }\n    $g--;\n}\nprint implode(\" \", $f);\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "a1401134a1797cb0122678e6da11a8b0", "src_uid": "ae20712265d4adf293e75d016b4b82d8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//=====================================\n// link: https://codeforces.com/contest/405/problem/A\n//=====================================\n\n// get inputs\n$number_of_columns = trim(fgets(STDIN));\n$columns_cubes = explode(' ', trim(fgets(STDIN)));\n\n// solution\nsort($columns_cubes);\necho implode(' ', $columns_cubes) . \"\\n\";\n", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "ff2b1f29e7575f46afd1814ffe1f7265", "src_uid": "ae20712265d4adf293e75d016b4b82d8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = readline();\n$input = explode(\" \",readline());\nsort($input);\n\nprint implode(\" \", $input);\n\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "ecabfd571a553012ba3621051403b436", "src_uid": "ae20712265d4adf293e75d016b4b82d8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction debug($msg)\n{\n    $debug = false;\n    // $debug = true;\n\n    if ($debug)\n    {\n        echo $msg . PHP_EOL;\n    }\n}\n\n$ts = 5 * 60;\n$te = 23 * 60 + 59;\n\ndefine ('FREQ', 0);\ndefine ('DURING', 1);\n\n$fh = fopen('php://stdin','r') or die('no input');\nif ($s = fgets($fh,100) ) {\n    $ta_arr = explode(' ', $s);\n}\n\nif ($s = fgets($fh,100) ) {\n    $tb_arr = explode(' ', $s);\n}\n\nif ($s = fgets($fh,100) ) {\n    $ta_start_arr = explode(':', $s);\n    $ta_start = $ta_start_arr[0] * 60 + $ta_start_arr[1];\n}\n\n\n// freq, travel_time\n\n// $ta_arr = array(\n//     FREQ   => 1,\n//     DURING => 1\n//     );\n// $tb_arr = array(\n//     FREQ   => 1,\n//     DURING => 1\n//     );\n// $ta_start = 23 * 60 + 59;\n\necho get_count($ta_arr, $tb_arr, $ta_start) . PHP_EOL;\n\nfunction get_count($ta_arr, $tb_arr, $ta_start)\n{\n    $tb_start = get_start($ta_start, $tb_arr);\n\n    $ta_end = get_end($ta_start, $ta_arr[DURING]);\n\n    $count = ceil(($ta_end - $tb_start) / $tb_arr[FREQ]);\n\n    debug(\" check between time $tb_start and $ta_end. Initial count: $count\" );\n\n    // meet at start staion\n    if (is_station($ta_start-$tb_arr[DURING], $tb_arr[FREQ]))\n    {\n        $count--;\n    }\n\n    return intval($count);\n}\n\n// get the most recent meetable bus start time\nfunction get_start($start, $t_arr)\n{\n    global $ts;\n\n    if ($start - $t_arr[DURING] > $ts)\n    {\n        $start_time = $start - $t_arr[DURING];\n\n        if ( (($start_time - $ts) % $t_arr[FREQ]) == 0)\n        {\n            return $start_time;\n        }\n        else\n        {\n            return $ts + ceil(($start_time - $ts) / $t_arr[FREQ]) * $t_arr[FREQ];\n        }\n    }\n    else\n        return $ts;\n}\n\nfunction get_end($start, $during)\n{\n    global $te;\n\n    if ($start + $during <= $te)\n        return $start + $during;\n    else\n        return $te + 1;\n}\n\nfunction is_station($t, $freq)\n{\n    global $ts, $te;\n\n    if ($t<$ts || $t > $te)\n        return false;\n\n    if ((($t - $ts) % $freq) == 0)\n    {\n        debug(\"meet in station at time: $t, freq: $freq\");\n        return true;\n    }\n    else\n        return false;\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "96739907a3b89ede2664697aaf6d2902", "src_uid": "1c4cf1c3cb464a483511a8a61f8685a7", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = explode(\":\", trim(fgets(STDIN)));\n$f = $e[0] * 60 + $e[1];\n$g = $f + $b;\n$h = array(300);\n$i = 1;\n$j = 300;\nwhile(TRUE)\n{\n     if($j == 1439)\n     {\n          break;\n     }\n     elseif($j > 1439)\n     {\n          unset($h[$i - 1]);\n          break;\n     }\n     else\n     {\n          $j += $c;\n          $h[$i] = $j;\n          $i++;\n     }\n}\n$k = array_reverse($h);\n$l = array();\nfor($x = 0; $x < count($k); $x++)\n{\n     $l[$x] = $k[$x] + $d;\n}\n$m = 0;\nfor($x = 0; $x < count($k); $x++)\n{\n     if(($k[$x] < $g) && ($l[$x] > $f))\n     {\n          $m++;\n     }\n}\nprint $m;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c69ebacf67a5107e26b19006a72ecc54", "src_uid": "1c4cf1c3cb464a483511a8a61f8685a7", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction debug($msg)\n{\n    $debug = false;\n    // $debug = true;\n\n    if ($debug)\n    {\n        echo $msg . PHP_EOL;\n    }\n}\n\n$ts = 5 * 60;\n$te = 24 * 60;\n\ndefine ('FREQ', 0);\ndefine ('DURING', 1);\n\n$fh = fopen('php://stdin','r') or die('no input');\nif ($s = fgets($fh,100) ) {\n    $ta_arr = explode(' ', $s);\n}\n\nif ($s = fgets($fh,100) ) {\n    $tb_arr = explode(' ', $s);\n}\n\nif ($s = fgets($fh,100) ) {\n    $ta_start_arr = explode(':', $s);\n    $ta_start = $ta_start_arr[0] * 60 + $ta_start_arr[1];\n}\n\n\n// freq, travel_time\n\n// $ta_arr = array(\n//     FREQ   => 1,\n//     DURING => 1\n//     );\n// $tb_arr = array(\n//     FREQ   => 1,\n//     DURING => 1\n//     );\n// $ta_start = 23 * 60 + 59;\n\necho get_count($ta_arr, $tb_arr, $ta_start) . PHP_EOL;\n\nfunction get_count($ta_arr, $tb_arr, $ta_start)\n{\n    $tb_start = get_start($ta_start, $tb_arr);\n\n    $ta_end = get_end($ta_start, $ta_arr[DURING]);\n\n    $count = ceil(($ta_end - $tb_start) / $tb_arr[FREQ]);\n\n    debug(\" check between time $tb_start and $ta_end. Initial count: $count\" );\n\n    // meet at start staion\n    if (is_station($ta_start-$tb_arr[DURING], $tb_arr[FREQ]))\n    {\n        $count--;\n    }\n\n    return intval($count);\n}\n\n// get the most recent meetable bus start time\nfunction get_start($start, $t_arr)\n{\n    global $ts;\n\n    if ($start - $t_arr[DURING] > $ts)\n    {\n        $start_time = $start - $t_arr[DURING];\n\n        if ( (($start_time - $ts) % $t_arr[FREQ]) == 0)\n        {\n            return $start_time;\n        }\n        else\n        {\n            return $ts + ceil(($start_time - $ts) / $t_arr[FREQ]) * $t_arr[FREQ];\n        }\n    }\n    else\n        return $ts;\n}\n\nfunction get_end($start, $during)\n{\n    global $te;\n\n    if ($start + $during < $te)\n        return $start + $during;\n    else\n        return $te;\n}\n\nfunction is_station($t, $freq)\n{\n    global $ts, $te;\n\n    if ($t<$ts || $t > $te)\n        return false;\n\n    if ((($t - $ts) % $freq) == 0)\n    {\n        debug(\"meet in station at time: $t, freq: $freq\");\n        return true;\n    }\n    else\n        return false;\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "fb19db64df26abb82a3678fe34e2ffa0", "src_uid": "1c4cf1c3cb464a483511a8a61f8685a7", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$string = trim(fgets(STDIN));\n$values = str_split($string);\n$contador = 0;\nfor ($x = 0; $x < count($values); $x++) {\n    if ($values[$x] == '7' || $values[$x] == '4') {\n        $contador++;\n    }\n}\nif ($contador == 7 || $contador == 4) {\n    echo \"YES\";\n} else {\n    echo \"NO\";\n}\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "878dbdb2ddb8e7edc40b7a75fecabe26", "src_uid": "33b73fd9e7f19894ea08e98b790d07f1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\npreg_match_all('/4|7/',$n, $m);\n\nif( sizeof($m[0]) == 4 || sizeof($m[0]) == 7 ){\n    echo 'YES';\n}else{\n    echo 'NO';\n}\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1bf4f24ae6ec3e5c91c30a31ea59c65b", "src_uid": "33b73fd9e7f19894ea08e98b790d07f1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$lines  = @file(\"php://stdin\");\n$num = str_split($lines[0]);\n$lucky_digits = ['4', '7'];\n$count = 0;\nforeach($num as $digit)\n    if(in_array($digit, $lucky_digits)) $count ++;\n$is_lucky = true;\n$count = str_split(\"$count\");\n\nforeach($count as $digit){\n    if(!in_array($digit, $lucky_digits)) {\n        $is_lucky = false;\n    }\n}\n\necho ($is_lucky == true) ? 'YES' : 'NO';\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a72eaf9329e947b8fd7f0401d688801c", "src_uid": "33b73fd9e7f19894ea08e98b790d07f1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%s\", $arr);\n$n = strlen($arr);\n$s = 0;\n   for ($i = 0; $i < $n; $i++){\n          if ($arr[$i] == 4 || $arr[$i] == 7){\n              $s = $s + 1;\n          }\n    }\n    \n    if ($s == 4 || $s == 7){\n        echo ('YES');\n    }\n         else\n         echo ('NO');\n\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5f8772f949932d0bf437c5913647ba92", "src_uid": "33b73fd9e7f19894ea08e98b790d07f1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$input = preg_replace('/[^47]/', '', trim(fgets(STDIN)));\n\techo (strlen($input) == 4 || strlen($input) == 7)?\"YES\":\"NO\";\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "28586611fa391b00774e5348793c66f0", "src_uid": "33b73fd9e7f19894ea08e98b790d07f1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $fp = fopen('php://stdin', 'r');\n    $n = rtrim(fgets($fp));\n    $result = array();\n    preg_match_all('/[47]/', $n, $result);\n    echo ((count($result[0]) == 7) || (count($result[0]) == 4)) ? 'YES' : 'NO';\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6ecb1cfb9ce7f6c9bdefd24cd85d3ffa", "src_uid": "33b73fd9e7f19894ea08e98b790d07f1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%s\",$n);\n$count=0;\nfor($i=0;$i<strlen($n);$i++)\n{\n\tif($n[$i]==\"7\"||$n[$i]==\"4\")\n\t\t$count++;\n}\nif($count==\"7\"||$count==\"4\")\necho \"YES\";\nelse echo \"NO\";", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "fff23165bd9648f84c6700057a8ebc57", "src_uid": "33b73fd9e7f19894ea08e98b790d07f1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n// Too simple...\n\nfunction islucky($s) {\n    if($s == 0) return false;\n    while($s > 0) {\n        if($s % 10 != 4 && $s % 10 != 7) \n            return false;\n        $s = intval($s / 10);\n    }\n    return true;\n}\n\nfscanf(STDIN, \"%s\", $s);\necho islucky(substr_count($s, '4') + substr_count($s, '7')) ? \"YES\" : \"NO\";", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "88792ef09cdae1a21777b4dab049b489", "src_uid": "33b73fd9e7f19894ea08e98b790d07f1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = str_split(fgets(STDIN));\n$digit = 0;\nforeach($n as $arr){\n\tif ($digit > 7){\n\t\t$digit = 0;\n\t\tbreak;\n\t}\n\telse if ($arr == \"4\" || $arr == \"7\")\n\t\t$digit++;\n}\nif ($digit == 4 || $digit == 7)\n\techo \"YES\";\nelse\n\techo \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "eec1bfa7d8d3c5a804b6aaca1d1c8b48", "src_uid": "33b73fd9e7f19894ea08e98b790d07f1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$in = trim(fgets(STDIN));\n$not = str_replace(array('4','7'), '', $in);\n$count = strlen($in)-strlen($not);\nif($count == 4 || $count == 7) {\n    echo('YES');\n    exit(0);\n}\necho('NO');\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "da830194bb8ac95d18e6c12b89d28154", "src_uid": "33b73fd9e7f19894ea08e98b790d07f1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input=trim(fgets(STDIN));\nsettype($input,'string');\n$a=0;\n$input1=[];\nfor ($i=$input;; $i++) { \n     $input1=str_split($i);\n     for ($j=0;$j<count($input1);$j++) { \n           $a+=$input1[$j];\n     }\n\n     if($a % 4 == 0){\n          echo  $i;\n          exit;\n     }\n     $a=0;\n}\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "71f91d93f15c7bda60783a20294e2e22", "src_uid": "bb6fb9516b2c55d1ee47a30d423562d7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $A = intval(fgets(STDIN));\n    while (array_sum(str_split($A))%4>0) $A++;\n    echo $A;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1bc7e52614e4eb065a19cdac1f58d782", "src_uid": "bb6fb9516b2c55d1ee47a30d423562d7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nwhile(TRUE)\n{\n     $b = str_split($a);\n     $c = array_sum($b);\n     if($c % 4 == 0)\n     {\n          print implode($b);\n          break;\n     }\n     else\n     {\n          $a = implode($b);\n          $a++;\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "33fb3f5d4ba81d3097893561a3743f9a", "src_uid": "bb6fb9516b2c55d1ee47a30d423562d7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($x) = explode(' ', trim(fgets(STDIN)));\n $y = xz($x);\nwhile(true){\n     if($y % 4 == 0){\n          break;          \n     } else {\n          $x++;\n     }\n    $y = xz($x);\n}\necho $x;\n\n\nfunction xz($x){\n    $sum = 0;\n    do {\n        $sum += $x % 10;\n    }\n    while ($x = (int) $x / 10);\n    return $sum;\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b682fa9dde36996d60d836471b01e34d", "src_uid": "bb6fb9516b2c55d1ee47a30d423562d7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN));\n    for ($i = $n; $i<= 100000; $i++) {\n        $k = 0; $san = strval($i);\n        for($j = 0; $j < strlen($san); $j++) {\n            $k = $k + intval($san[$j]);\n        }\n        \n        if ($k%4 == 0){\n            echo $i;\n            break;\n        }\n    }\n        \n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1e4d53ffc41f3ccbf3205c62fcab2092", "src_uid": "bb6fb9516b2c55d1ee47a30d423562d7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN));\n    $b = false;\n    while($b == false){\n        $m = str_split($n);\n        $s = 0;\n        foreach($m as $v){\n            $s += $v; \n        }\n        if(($s % 4) == 0 ){\n            echo $n;\n            $b = true;\n            exit;\n        } else {\n            $n += 1;\n        }\n    }\n\n\n ?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e9d72a8ea0770bbbd33a358444511f3d", "src_uid": "bb6fb9516b2c55d1ee47a30d423562d7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$num = trim(fgets(STDIN));\n$res = array_sum(str_split($num));\n\necho get($num, $res); \n\n\n\n\nfunction get($num1, $sum1){\n\tif($sum1 % 4 == 0){\n\t\treturn $num1;\n\t} else {\n\t\t$num1++;\n\t\t$sum1 = array_sum(str_split($num1));\n\t\treturn get($num1, $sum1);\n\t}\n}\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "501fd80b13a5f0177309f6821cb4e571", "src_uid": "bb6fb9516b2c55d1ee47a30d423562d7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\nprint str_replace('WUB',' ',$s);\n?>", "lang_cluster": "PHP", "tags": ["strings"], "code_uid": "18628274fa6adb4968f0f8aa488c3200", "src_uid": "edede580da1395fe459a480f6a0a548d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$x=trim(fgets(STDIN));\n$x1=str_replace(\"WUB\", \" \", $x);\necho trim($x1);\n\n?>", "lang_cluster": "PHP", "tags": ["strings"], "code_uid": "cf489fd2782fbfc632f60e411a565422", "src_uid": "edede580da1395fe459a480f6a0a548d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $cad = explode(\"WUB\", trim(fgets(STDIN)));\n    for($i = 0; $i < count($cad); $i++)\n        if($cad[$i] != \"\") print $cad[$i] . \" \";\n?>\n", "lang_cluster": "PHP", "tags": ["strings"], "code_uid": "83ed1860c0e754352b0ea43e568d81d4", "src_uid": "edede580da1395fe459a480f6a0a548d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str=fgets(STDIN);\n$str=trim($str);\n$str=str_replace('WUB', ' ', $str);\n$i=70;\nwhile($i>=1) {\n$str=str_replace(str_repeat(' ', $i), ' ', $str);\n$i--;\n}\n$str=trim($str);\necho $str;\n?>", "lang_cluster": "PHP", "tags": ["strings"], "code_uid": "5a7ec5c32f89ce2f8449dfb8ca6cc882", "src_uid": "edede580da1395fe459a480f6a0a548d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = fgets(STDIN);\n$s = preg_replace('/WUB/',' ',$s);\necho $s;\n?>\n", "lang_cluster": "PHP", "tags": ["strings"], "code_uid": "e7293e83beb28714c4249f20b21df0f5", "src_uid": "edede580da1395fe459a480f6a0a548d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\nprint str_replace('WUB',' ',$s);\n?>", "lang_cluster": "PHP", "tags": ["strings"], "code_uid": "cff8b53e441c731c0e27ea84f887fbe5", "src_uid": "edede580da1395fe459a480f6a0a548d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$w = trim(fgets(STDIN));\n\n$w = preg_replace('/WUB/',' ',$w);\n\n$wa =  explode(' ', $w);\necho trim(implode(' ',$wa ));\n", "lang_cluster": "PHP", "tags": ["strings"], "code_uid": "92491f0d0037d62d444d5062838135be", "src_uid": "edede580da1395fe459a480f6a0a548d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(implode(' ',explode('WUB',fgets(STDIN))));                                                                                                                                                                                      \necho $s; \n?>", "lang_cluster": "PHP", "tags": ["strings"], "code_uid": "69f3a21575f6b2d25bc64733a973f8e9", "src_uid": "edede580da1395fe459a480f6a0a548d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\n$input = fgets(STDIN);\n\n$result = preg_replace(\"/(WUB){1,}/\", \" \", $input);\n$result = preg_replace(\"/ {1,}/\", \" \", $result);\n\nprint($result);", "lang_cluster": "PHP", "tags": ["strings"], "code_uid": "5f60f22985ee04b5302927f6e17c4d0a", "src_uid": "edede580da1395fe459a480f6a0a548d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input=fgets(STDIN);\n$input=str_replace('WUB',' ',$input);\n$input=str_word_count($input,1);\necho implode(' ',$input);\n?>", "lang_cluster": "PHP", "tags": ["strings"], "code_uid": "56df2968b75a4645360dc61d76bfb096", "src_uid": "edede580da1395fe459a480f6a0a548d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nprint preg_match('/[HQ9]/',trim(fgets(STDIN)),$o) ? 'YES' : 'NO';\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ad0fbe1c451d3035c7b9699459a60493", "src_uid": "1baf894c1c7d5aeea01129c7900d3c12", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $a = trim(fgets(STDIN));\n    $b = explode(' ',trim(fgets(STDIN)));\n   // $ball=explode(' ',trim(fgets(STDIN)));\n  for ($i=0;$i<strlen($a);$i++) {if (($a[$i]=='H') or ($a[$i]=='Q') or ($a[$i]=='9') ) {print('YES');die;}}\n  print('NO'); \n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "dfa086b56fedf505fadeb88e6f92ac04", "src_uid": "1baf894c1c7d5aeea01129c7900d3c12", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split($a);\narray_unshift($b, \" \");\nunset($b[0]);\n$g = 0;\nfor($x = 1; $x <= count($b); $x++)\n{\n    $c = array_search(\"H\", $b);\n    $d = array_search(\"Q\", $b);\n    $e = array_search(\"9\", $b); \n    if($c || $d || $e)\n    {\n        $g = 1;\n    }\n}\nif($g == 1)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "40719a732083b6ce2854e23aa1dd8eea", "src_uid": "1baf894c1c7d5aeea01129c7900d3c12", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\necho (preg_match('/[HQ9]/', $s) > 0 ? \"YES\" : \"NO\");\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6cfb39d957839ea47fa433827fae51c2", "src_uid": "1baf894c1c7d5aeea01129c7900d3c12", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, '%s\\n', $p); // считываем строку с посланием\n$line = str_split($p, 1);\n\n$result = 0; \n\nfor($i = 0; $i < count($line); $i++){\n\tif($line[$i] == \"H\"){\n\t\t$result = \"YES\";\n\t}\n\tif($line[$i] == \"Q\"){\n\t\t$result = \"YES\";\n\t}\n\tif($line[$i] == \"9\"){\n\t\t$result = \"YES\";\n\t}\n\n}\nif($result!== 0){\n\tprint_r($result);\n} else{\n\tprint_r(\"NO\");\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4d316e4cc4bca830c8c06bdb82cceb6b", "src_uid": "1baf894c1c7d5aeea01129c7900d3c12", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = trim(fgets(STDIN));\n$exist = 0;\nfor ($i=0;$i<strlen($line);$i++)\n{\n    if ($line[$i]==\"H\"||$line[$i]==\"Q\"||$line[$i]==\"9\") $exist++;\n}\nif ($exist!=0)echo \"YES\";\nelse echo \"NO\";", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "d7961b346fd67069d78c1ef537416bd2", "src_uid": "1baf894c1c7d5aeea01129c7900d3c12", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$number = fgets(STDIN);\n$pos = strrpos($number, \"H\");\n$pos1 = strrpos($number, \"Q\");\n$pos2 = strrpos($number, \"9\");\nif ($pos != FALSE || $pos1 != FALSE || $pos2 != FALSE)\n    echo 'YES';\nelse\nif ($pos === 0 || $pos1 === 0 || $pos2 === 0)\n    echo 'YES';\nelse\n    echo 'NO';\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e08939f816798d7c731b0bb0fe5aaa67", "src_uid": "1baf894c1c7d5aeea01129c7900d3c12", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$str = trim(fgets(STDIN));\n\n$arr = array_unique(str_split($str));\nif(in_array(\"H\", $arr) || in_array(\"Q\", $arr) || in_array(\"9\", $arr)) {\n    echo \"YES\\n\";\n} else {\n    echo \"NO\\n\";\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a45483265bbc57db5a1a0a2e7d18e4ab", "src_uid": "1baf894c1c7d5aeea01129c7900d3c12", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$stdin = fopen(\"php://stdin\",\"r\");\n\t$str = fgets($stdin);\n\tif(strchr($str,\"H\")) die(\"YES\");\n\tif(strchr($str,\"Q\")) die(\"YES\");\n\tif(strchr($str,\"9\")) die(\"YES\");\n\tdie(\"NO\");\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "eff68db5666a2fc79c5246025a525c7a", "src_uid": "1baf894c1c7d5aeea01129c7900d3c12", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$arr=array(\"H\",\"Q\",\"9\");\n$p = trim(fgets(STDIN));\n$i=0;\n$ada=false;\nwhile ($i < strlen($p)) {\n\tforeach ($arr as $value) {\n\t\tif($p[$i] == $value){\n\t\t\t$ada=true;\n\t\t\tbreak;\n\t\t}\n\t}\n\t$i++;\n}\necho ($ada) ? \"YES\" : \"NO\";\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "be94e38b275959da64535d26bab79d43", "src_uid": "1baf894c1c7d5aeea01129c7900d3c12", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// Retrieve input\n$stdin = fopen('php://stdin', 'r');\nfunction g() {\n\tglobal $stdin;\n\treturn explode(\" \", trim(fgets($stdin)));\n}\n\n// Codeforces Contest 150 Div 2 Problem B\nfunction tobin($n, $dig) {\n\t$res = \"\";\n\twhile ($n > 1) {\n\t\t$res = ($n % 2) . $res;\n\t\t$n = ($n - ($n % 2)) / 2;\n\t}\n\t$res = $n . $res;\n\t$res = str_repeat(\"0\", $dig - strlen($res)) . $res;\n\treturn $res;\n}\n\nfor ($i = 1; $i <= 9; $i++) {\n\tfor ($j = 1; $j <= 9; $j++) {\n\t\t$nums[] = str_repeat($i, $j);\n\t}\n}\n$nums[] = \"1000000000\";\n\nfor ($len = 2; $len <= 9; $len++) {\n\tfor ($i = 1; $i < pow(2, $len) - 1; $i++) {\n\t\t$j = tobin($i, $len);\n\t\tfor ($x = 1; $x <= 9; $x++) {\n\t\t\tfor ($y = 0; $y < $x; $y++) {\n\t\t\t\tif (($y != 0) || (substr($j, 0, 1) == \"1\")) {\n\t\t\t\t\t$s = \"\";\n\t\t\t\t\tfor ($k = 0; $k < strlen($j); $k++) {\n\t\t\t\t\t\t$s .= (substr($j, $k, 1) == \"1\" ? $x : $y);\n\t\t\t\t\t}\n\t\t\t\t\t$nums[] = $s;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n\n$raw = g();\n$n = $raw[0];\n\n$ct = 0;\nforeach ($nums as $val) {\n\tif ($n >= $val) {$ct++;}\n}\n\necho $ct;\n\n// End of submission file\n// Submission by chaotic_iak\n?>", "lang_cluster": "PHP", "tags": ["brute force", "dfs and similar", "bitmasks"], "code_uid": "b91643bc000305f6bbaa97ab689db9f3", "src_uid": "0f7f10557602c8c2f2eb80762709ffc4", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%d\", $n); \n\n$s = array();\n\nfunction dfs($num) {\n\tglobal $n, $i, $j;\n\tif ($num <= 0 || $num > $n) return 0;\n\tglobal $s;\n\tif (isset($s[$num]) == FALSE) {\n\t\t$s[$num] = 1;\n\t}\n\t$num = $num * 10;\n\tdfs($num + $i);\n\tdfs($num + $j);\n}\n\nfor ($i = 0; $i < 10; ++ $i) {\n\tfor ($j = 0; $j < 10; ++ $j) {\n\t\tdfs($i);\n\t}\n}\nprintf(\"%d\\n\", count($s));\n\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "dfs and similar", "bitmasks"], "code_uid": "ba1db65a0cc6c706a5bba7bb7c4df6c1", "src_uid": "0f7f10557602c8c2f2eb80762709ffc4", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\narray_unshift($a, \" \");\nunset($a[0]);\nif(($a[1] == $a[2]) && ($a[2] == $a[3]) && ($a[3] == $a[4]) && ($a[9] == $a[10]) && ($a[10] == $a[11]) && ($a[11] == $a[12]))\n{\n     if(($a[5] == $a[6]) && ($a[6] == $a[19]) && ($a[19] == $a[20]) && ($a[17] == $a[18]) && ($a[18] == $a[23]) && ($a[23] == $a[24]) && ($a[21] == $a[22]) && ($a[22] == $a[15]) && ($a[15] == $a[16]) && ($a[13] == $a[14]) && ($a[14] == $a[7]) && ($a[7] == $a[8]))\n     {\n          print \"YES\";\n     }\n     elseif(($a[15] == $a[16]) && ($a[16] == $a[5]) && ($a[5] == $a[6]) && ($a[7] == $a[8]) && ($a[8] == $a[17]) && ($a[17] == $a[18]) && ($a[19] == $a[20]) && ($a[20] == $a[21]) && ($a[21] == $a[22]) && ($a[23] == $a[24]) && ($a[24] == $a[13]) && ($a[13] == $a[14]))\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\nelseif(($a[5] == $a[6]) && ($a[6] == $a[7]) && ($a[7] == $a[8]) && ($a[21] == $a[22]) && ($a[22] == $a[23]) && ($a[23] == $a[24]))\n{\n     if(($a[1] == $a[2]) && ($a[2] == $a[17]) && ($a[17] == $a[19]) && ($a[18] == $a[20]) && ($a[20] == $a[9]) && ($a[9] == $a[10]) && ($a[11] == $a[12]) && ($a[12] == $a[14]) && ($a[14] == $a[16]) && ($a[13] == $a[15]) && ($a[15] == $a[3]) && ($a[3] == $a[4]))\n     {\n          print \"YES\";\n     }\n     elseif(($a[16] == $a[14]) && ($a[14] == $a[1]) && ($a[1] == $a[2]) && ($a[3] == $a[4]) && ($a[4] == $a[18]) && ($a[18] == $a[20]) && ($a[11] == $a[12]) && ($a[12] == $a[17]) && ($a[17] == $a[19]) && ($a[9] == $a[10]) && ($a[10] == $a[13]) && ($a[13] == $a[15]))\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\nelseif(($a[13] == $a[14]) && ($a[14] == $a[15]) && ($a[15] == $a[16]) && ($a[17] == $a[18]) && ($a[18] == $a[19]) && ($a[19] == $a[20]))\n{\n     if(($a[1] == $a[3]) && ($a[3] == $a[6]) && ($a[6] == $a[8]) && ($a[2] == $a[4]) && ($a[4] == $a[22]) && ($a[22] == $a[24]) && ($a[5] == $a[7]) && ($a[7] == $a[10]) && ($a[10] == $a[12]) && ($a[9] == $a[11]) && ($a[11] == $a[21]) && ($a[21] == $a[23]))\n     {\n          print \"YES\";\n     }\n     elseif(($a[1] == $a[3]) && ($a[3] == $a[21]) && ($a[21] == $a[23]) && ($a[2] == $a[4]) && ($a[4] == $a[5]) && ($a[5] == $a[7]) && ($a[6] == $a[8]) && ($a[8] == $a[9]) && ($a[9] == $a[11]) && ($a[10] == $a[12]) && ($a[12] == $a[22]) && ($a[22] == $a[24]))\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "a3b37a1ded147ee6ecba1ea88f0d9603", "src_uid": "881a820aa8184d9553278a0002a3b7c4", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdin = fopen('php://stdin', 'r');\n\nlist($n, $k) = explode(' ', fgets($stdin));\n$array = explode(' ', fgets($stdin));\n\n$max = 0;\nfor ($i = 0; $i < $n; $i++) {\n    $max = max($max, getRes($array, $i, $k));\n}\n\necho $max;\n\nfunction getRes($array, $b, $k) {\n    for ($i = $b; $i >= 0; $i -= $k) {\n        $array[$i] = 0;\n    }\n    for ($i = $b; $i <= count($array); $i += $k) {\n        $array[$i] = 0;\n    }\n    return abs(array_sum($array));\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "818741c0be006b29d19acae561e570b8", "src_uid": "6119258322e06fa6146e592c63313df3", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction debug($data, $die = true) {\n    echo '<pre>';\n\n    if (is_array($data)) {\n        print_r($data);\n    } else {\n        var_dump($data);\n    }\n\n    if ($die) {\n        die();\n    }\n\n    echo '</pre>';\n}\n\nfunction stdin() {\n    $stdin = @fopen('data.txt', 'r');\n    if (!$stdin) {\n        $stdin = fopen('php://stdin', 'r');\n    }\n\n    return $stdin;\n}\n\nfunction g() {\n    global $stdin;\n    return trim(fgets($stdin));\n}\n\n$stdin = stdin();\n/****************************************************** Solving block *****************************************************/\n$path = g();\n$path = preg_replace('/\\/{2,}/', '/', $path);\n\n$strlen = strlen($path);\nif(strlen($path) > 1 && substr($path, $strlen-1) == '/') {\n    $path = substr($path, 0, $strlen-1);\n}\n\necho $path;\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "9aa8176e1f4726c05701d3d6b5310b9d", "src_uid": "6c2e658ac3c3d6b0569dd373806fa031", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = file_get_contents(\"php://stdin\");\n$input = preg_replace( \"/\\r|\\n/\", \"\", $input);\n$e = explode(\"/\",$input);\n\n$s = explode(\"\\n\",$e[$c]);\n\n$count=0;\nforeach($e as $a)\n{\n\n    if($a!=\"\" && $a!='\\n')\n    {\n        echo(\"/$a\");\n        $count++;\n    }\n\n}\n    if($count==0)\n    {\n        echo(\"/\");\n    }\n    \n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "033a5f90c11d8c5f0bc350372ee50942", "src_uid": "6c2e658ac3c3d6b0569dd373806fa031", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split($a);\nfor($x = 0; $x < 100; $x++)\n{\n    if(($b[$x] == \"/\") && ($b[$x + 1] == \"/\"))\n    {\n        unset($b[$x]);\n    }\n}\n$c = implode($b);\n$d = str_split($c);\nif((count($d) != 1) && ($d[count($d) - 1] == \"/\"))\n{\n    unset($d[count($d) - 1]);\n}\n$e = implode($d);\nprint $e;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "286e7e6a08b470558b0cff5d93354a72", "src_uid": "6c2e658ac3c3d6b0569dd373806fa031", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input=trim(fgets(STDIN));\n$array=str_word_count($input, 1);\n$lenth=str_word_count($input, 0);\nif ($lenth == 0) {\n       echo \"/\";\n    }else {\necho \"/\";\n$i = 1;\nforeach($array as $val) {\n  $tempArray[] = $val;\n  if($i < count($array)) {\n    $tempArray[] = ' ';\n  }\n  $i++;\n}\nforeach ($tempArray as $val) {\n     $turbo=str_replace(\" \", \"/\", $val);\n    echo $turbo;\n}\n }\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "bb07fb3da8a4ea44419f7f1cf25f2095", "src_uid": "6c2e658ac3c3d6b0569dd373806fa031", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $stdin = fopen('php://stdin', 'r');\n    $stdout = fopen('php://stdout', 'w');\n  \n    $address = fgets($stdin);\n    \n    $new_addr = preg_replace(\"/\\/+/\", \"/\", $address);\n    $new_addr = rtrim($new_addr, \"/ \\r\\n\"); if (empty($new_addr)) $new_addr = '/';\n    fputs($stdout, $new_addr);\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "88b36f172324a7456d403ae23c3cb089", "src_uid": "6c2e658ac3c3d6b0569dd373806fa031", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile(fscanf(STDIN,\"%d %d\",$x,$y)){\n    fscanf(STDIN, \"%d %d\",$obx,$oby);\n    fprintf(STDOUT,\"%d\",max(abs($obx-$x),abs($oby-$y)));\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "5ba219115bad14627d4db41c93437bff", "src_uid": "a6e9405bc3d4847fe962446bc1c457b4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  fscanf(STDIN, \"%d %d\", $x1, $y1);\n  fscanf(STDIN, \"%d %d\", $x2, $y2);\n  echo max(abs($x1 - $x2), abs($y1 - $y2));\n?>\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "3b032174e247bff2d567b60ba4afa1a2", "src_uid": "a6e9405bc3d4847fe962446bc1c457b4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\nif(($a < 0) && ($c < 0))\n{\n     $a = abs($a);\n     $c = abs($c);\n     $e = max($a, $c) - min($a, $c);\n}\nelseif(($a < 0) && ($c >= 0))\n{\n     $e = abs($a) + $c;\n}\nelseif(($a >= 0) & ($c < 0))\n{\n     $e = $a + abs($c);\n}\nelseif(($a >= 0) && ($c >= 0))\n{\n     $e = max($a, $c) - min($a, $c);\n}\nif(($b < 0) && ($d < 0))\n{\n     $a = abs($b);\n     $c = abs($d);\n     $f = max($b, $d) - min($b, $d);\n}\nelseif(($b < 0) && ($d >= 0))\n{\n     $f = abs($b) + $d;\n}\nelseif(($b >= 0) & ($d < 0))\n{\n     $f = $b + abs($d);\n}\nelseif(($b >= 0) && ($d >= 0))\n{\n     $f = max($b, $d) - min($b, $d);\n}\nprint max($e, $f);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "102fc03cc932d6e544b08eb62f0d62e4", "src_uid": "a6e9405bc3d4847fe962446bc1c457b4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$beginCoord = explode(' ', trim(fgets(STDIN)));\n$endCoord   = explode(' ', trim(fgets(STDIN)));\n\n$x1 = (int)$beginCoord[0];\n$y1 = (int)$beginCoord[1];\n\n$x2 = (int)$endCoord[0];\n$y2 = (int)$endCoord[1];\n\n$xx1 = abs($x2 - $x1);\n$yy1 = abs($y2 - $y1);\n\nif ($yy1 > $xx1) {\n    echo $yy1;\n} else {\n    echo $xx1;\n}", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "7ba0f18d63603c504a3ef50ec4cb2f69", "src_uid": "a6e9405bc3d4847fe962446bc1c457b4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n      $t = array();\n      list($x1, $y1) = explode(' ', trim(fgets(STDIN)));\n      list($x2, $y2) = explode(' ', trim(fgets(STDIN)));\n      echo abs($x1 - $x2) + abs($y1 - $y2) - min(abs($x1 - $x2), abs($y1 - $y2));\n?>\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "a2627fadb58be22318398a403937a674", "src_uid": "a6e9405bc3d4847fe962446bc1c457b4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\nwhile ($s = trim(fgets(STDIN)))\n{\n    $mas[] = explode(' ', $s);\n}\n$gl = 0;\nfor ($i = 0; $i< count($mas); $i++)\n{\n    for ($j = $i; $j < $i + 1; $j++)\n    {\n        $gl += $mas[$i][$j];\n        $mas[$i][$j] = 0;\n    }\n}\n\nfor ($i = 0; $i< count($mas); $i++)\n{\n    for ($j = count($mas) - 1 - $i; $j >= count($mas) - 1 - $i; $j--)\n    {\n        $pb += $mas[$i][$j];\n        $mas[$i][$j] = 0;\n    }\n}\n\n$seredina = floor($n / 2);\n\n    for ($j = 0; $j < $n; $j++)\n    {\n        $gr_sr += $mas[$seredina][$j];\n        $mas[$seredina][$j] = 0;\n    }\n\n\n    for ($i = 0; $i < $n; $i++)\n    {\n        $vr_sr += $mas[$i][$seredina];\n        $mas[$i][$seredina] = 0;\n    }\n\n\necho $gl + $pb + $gr_sr + $vr_sr;\n?>    ", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e6ac0eaff927527101dc19bd30961f49", "src_uid": "5ebfad36e56d30c58945c5800139b880", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = readline();\n$ara = array();\n$ara = array_fill(0, $n, array());\n\nfor($i=0; $i<$n; $i++)\n\t$ara[$i] = explode(\" \", readline());\n\n$ans = 0;\n$x = intval($n/2);\n\nfor($i=0; $i<$n; $i++)\n\t$ans += $ara[$i][$i];\n\nfor($i=$n-1, $j=0; $j<$n; $i--, $j++)\n\t$ans += $ara[$i][$j];\n\nfor($j=0; $j<$n; $j++)\n\t$ans += $ara[$x][$j];\n\nfor($i=0; $i<$n; $i++)\n\t$ans += $ara[$i][$x];\n\necho $ans-3*$ara[$x][$x] . \"\\n\";", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b0f5cc8eb907d6472935068402d281d9", "src_uid": "5ebfad36e56d30c58945c5800139b880", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$c = floor($a / 2);\n$e = array();\n$g = array();\n$h = array();\n$i = 0;\n$j = $a - 1;\nfor($x = 0; $x < $a; $x++)\n{\n    $b = explode(\" \", trim(fgets(STDIN)));\n    if($x == $c)\n    {\n        $d = array_sum($b); // горизонталь\n        $m = $b[$c];\n    }\n    array_push($e, $b[$c]);\n    array_push($g, $b[$i]);\n    $i++;\n    array_push($h, $b[$j]);\n    $j--;\n}\n$f = array_sum($e); // вертикаль\n$k = array_sum($g); // главная диагональ\n$l = array_sum($h); // побочная диагональ\nprint $d + $f + $k + $l - ($m * 3);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e1c52a1191f9f69ce00e39c95642043f", "src_uid": "5ebfad36e56d30c58945c5800139b880", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n$n = fgets(STDIN);\nfor ($i=0; $i < $n; $i++) {\n    $st = fgets(STDIN);\n    $r = explode(' ', $st);\n    $m[$i] = $r;\n}\n\nfor ($i=0; $i < $n; $i++)\n    for ($j=0; $j < $n; $j++)\n        $o[$i][$j] = 0;\n\nfor ($i=0; $i < $n; $i++) {\n    $o[$i][$i] = 1;\n    $o[$i][$n - $i - 1] = 1;\n    $o[$i][floor($n / 2)] = 1;\n    $o[floor($n / 2)][$i] = 1;\n}\n\n$s = 0;\nfor ($i=0; $i < $n; $i++)\n    for ($j=0; $j < $n; $j++)\n        $s += $m[$i][$j] * $o[$i][$j];\n\n//print_r($m);\n//print_r($o);\necho \"$s\\n\";\n?>\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1a82a57e7eb81f69a3817268050cb2f7", "src_uid": "5ebfad36e56d30c58945c5800139b880", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$flag = 1; //must be not zero for STDIN\n$in = 'php://stdin';\nif (!$flag)\n{\n    $in = \"input.txt\";\n}\n$fd = fopen($in, \"r\");\nfscanf($fd, \"%d\\n\", $n);\n$board = array($n);\n$mirror = array($n);\n\nfor ($c = 0; $c < $n; $c++)\n{\n    $board[$c] = array($n);\n    $mirror[$c] = array($n);\n    $data = fgets($fd);\n    $board[$c] = explode(\" \", $data);\n}\nfclose($fd);\n\n$m = ($n - 1) / 2;\n$result = 0;\n\nfor ($c1 = 0; $c1 < $n; $c1++)\n{\n    for ($c2 = 0; $c2 < $n; $c2++)\n    {\n        $board[$c1][$c2] = intval($board[$c1][$c2]);\n        $mirror[$c1][$c2] = $board[$c1][$c2];\n    }\n}\n\nfor ($c = 0; $c < $n; $c++)\n{\n    $board[$c][$c] = 0;\n    $board[$c][$n - 1 - $c] = 0;\n    $board[$c][$m] = 0;\n    $board[$m][$c] = 0;\n}\n\n\nfor ($c1 = 0; $c1 < $n; $c1++)\n{\n    for ($c2 = 0; $c2 < $n; $c2++)\n    {\n        $board[$c1][$c2] = $board[$c1][$c2] ^ $mirror[$c1][$c2];\n        $result+=$board[$c1][$c2];\n    }\n}\nprint $result;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ef19bb9260e2641a81c51644ba3a0fff", "src_uid": "5ebfad36e56d30c58945c5800139b880", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n $n = trim(fgets(STDIN)); \n $arr = explode(\" \", trim(fgets(STDIN)));\n $idxMin = 0;\n $idxMax = 0;\n for( $i = 0; $i < $n; $i++ )\n {\n    if( $arr[$i] > $arr[$idxMax] )\n\t  $idxMax = $i;\n\tif( $arr[$i] < $arr[$idxMin] )\n\t  $idxMin = $i;\n }\n \n $dis = abs($idxMax - $idxMin);\n for( $i = 0; $i < $n; $i++) \n    if( abs( $i - $idxMin ) > $dis )\n\t  $dis = abs( $i - $idxMin );\n\t\n for( $i = 0; $i < $n; $i++)  \n    if( abs( $i - $idxMax ) > $dis )\n\t  $dis = abs( $i - $idxMax );\n printf(\"%d\",$dis); \n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "5af921cd5a0639641db0d156fc1672c8", "src_uid": "1d2b81ce842f8c97656d96bddff4e8b4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nfor($x = 0; $x < $a; $x++)\n{\n     if($b[$x] == 1)\n     {\n          $c = $x;\n          break;\n     }\n}\nfor($x = 0; $x < $a; $x++)\n{\n     if($b[$x] == $a)\n     {\n          $d = $x;\n          break;\n     }\n}\nif((($c == 0) && ($d == $a - 1)) || (($c == $a - 1) && ($d == 0)))\n{\n     print $a - 1;\n}\nelseif($c < $d)\n{\n     $e = ($a - 1) - $c;\n     print max($d, $e);\n}\nelseif($c > $d)\n{\n     $e = ($a - 1) - $d;\n     print max($c, $e);\n}\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "b8110a51829df5efdce4a5617bf995e5", "src_uid": "1d2b81ce842f8c97656d96bddff4e8b4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = fopen(\"php://stdin\", 'r');\n\n$n = trim(fgets($in));\n\n$a = explode(' ', fgets($in));\n\n$b = array_map(function($p) {\n    global $a, $n;\n    $i = array_search($p, $a);\n    return max($i, $n - $i - 1);\n}, array(\"1\", $n));\n\necho max($b);\n\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "103076ff736b7193c715c3ad3671e235", "src_uid": "1d2b81ce842f8c97656d96bddff4e8b4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = array();\n$d = array();\nfor($x = 0; $x < 5; $x++)\n{\n     $c[$b[$x][0]] = TRUE;\n     $d[$b[$x][1]] = TRUE;\n}\nif(($c[$a[0]] == TRUE) || ($d[$a[1]] == TRUE))\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "57727d6348ee520a3c009c6e8c18a029", "src_uid": "699444eb6366ad12bc77e7ac2602d74b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  $s1 = trim(fgets(STDIN));\n  $s2 = trim(fgets(STDIN));\n  $a = explode(\" \", $s2);\n  $a2[] = substr($s1, 0, 1);\n  $a2[] = substr($s1, -1, 1);\n  foreach($a as $aV){\n      unset($a3);\n      $a3[] = substr($aV, 0, 1);\n      $a3[] = substr($aV, -1, 1);\n      if($a3[0] == $a2[0] || $a3[1] == $a2[1]){\n          echo \"YES\";\n          exit;\n      }\n  }\n  echo \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "7b65b59f956bdc8b7513da622e761689", "src_uid": "699444eb6366ad12bc77e7ac2602d74b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = readline();\n$b = readline();\nif (strpos($b, $a[0]) !== false ||\n    strpos($b, $a[1]) !== false) {\n  echo \"YES\\n\";\n}\nelse {\n  echo \"NO\\n\";\n}", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "78db4e311b2258792e4161127dc644ae", "src_uid": "699444eb6366ad12bc77e7ac2602d74b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n) = explode(' ', trim(fgets(STDIN)));\nlist($a,$b,$c,$d,$e) = explode(' ', trim(fgets(STDIN)));\n$aInTable = str_split($n);\n$aCards = array(str_split($a),str_split($b),str_split($c),str_split($d),str_split($e));\n$bExist = false;\nforeach($aCards as $aCard){\n    foreach ($aCard as $sKey => $sVal){\n        if($sVal == $aInTable[0] || $sVal == $aInTable[1])\n        {\n            $bExist = true;\n        }\n    }\n}\n\necho $bExist ?  'YES' :  'NO';", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "812e0b7d1ecf5f3e5489f7e5fb89d4f5", "src_uid": "699444eb6366ad12bc77e7ac2602d74b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php  \n// keep this function call here\n$file = fopen('php://stdin', 'r');\n// $file = fopen('input.txt', 'r');\n$line = fgets($file);\n$arr = fgets($file);\n$all = explode(' ', $arr);\nforeach ($all as $value) {\n        if($line[0] == $value[0] || $line[0] == $value[1] || $line[1] == $value[0] || $line[1] == $value[1]){\n                echo \"YES\";\n                return 0;\n        }\n}\necho \"NO\";\n// print_r($arr);\n// $str = (int) $line;\n// $arr = explode(' ', $line);\n\n// echo search((int)$line, 0);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "d89bff5093fffcde02bd93be79248089", "src_uid": "699444eb6366ad12bc77e7ac2602d74b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n    while(! feof(STDIN)){\n        $arr[]=fgets(STDIN);\n    }\n    \n    $p1=$arr[0][0];\n    $p2=$arr[0][1];\n    \n    if(preg_match(\"/$p1/\", $arr[1],$value)==1 || preg_match(\"/$p2/\", $arr[1],$value)==1)\n    echo \"Yes\";\n    else echo \"No\";\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "69fa44caf4c80b276d14c1cc00b35caf", "src_uid": "699444eb6366ad12bc77e7ac2602d74b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%s\",$t);\nfscanf(STDIN,\"%s %s %s %s %s\",$h1,$h2,$h3,$h4,$h5);\n$count=0;\nif($t[0]==$h1[0]||$t[0]==$h2[0]||$t[0]==$h3[0]||$t[0]==$h4[0]||$t[0]==$h5[0]||$t[1]==$h1[1]||$t[1]==$h2[1]||$t[1]==$h3[1]||$t[1]==$h4[1]||$t[1]==$h5[1])\n{\n\techo \"YES\";\n\t$count=1;\n}\nif($count==0)\necho \"NO\";", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "b34fa2a784c03f9f167be42108273d93", "src_uid": "699444eb6366ad12bc77e7ac2602d74b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t\n\t$card = str_split(trim(fgets(STDIN)));\n\t\n\t$cards = explode(' ', trim(fgets(STDIN)));\n\t\n\t$ans = 'NO';\n\t\n\tfor($i = 0; $i<count($cards); $i++){\n\t\t$c = str_split($cards[$i]);\n\t\tif($c[0] == $card[0] || $c[1] == $card[1]) $ans = 'YES';\n\t}\n\t\n\techo $ans;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "cd2492c227941b9b7772ff8f0fb8d260", "src_uid": "699444eb6366ad12bc77e7ac2602d74b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$hand = readline();\n$table = explode(' ', readline());\n\nfor($i=0; $i<5; $i++)\n{\n\tif($table[$i][0] == $hand[0])\n\t\tdie(\"YES\");\n\tif($table[$i][1] == $hand[1])\n\t\tdie(\"YES\");\n}\ndie(\"NO\");", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "6fe3db24a64b938deec99ef763ecf00d", "src_uid": "699444eb6366ad12bc77e7ac2602d74b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$tc = readline();\n$hc = readline();\n\nfor($i = 0; $i < strlen($hc); $i++) {\n    if($tc[0] == $hc[$i] or $tc[1] == $hc[$i]) {\n        echo \"YES\\n\";\n        break;\n    }\n}\n\nif($i == strlen($hc)) echo \"NO\\n\";", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "c2186263490b9a3569a804e6b35cbf1b", "src_uid": "699444eb6366ad12bc77e7ac2602d74b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = 0;\n$d = 0;\nfor($x = 0; $x < $a; $x++)\n{\n     if($b[$x] == \"0\")\n     {\n          $c++;\n     }\n     else\n     {\n          $d = 1;\n     }\n}\nif($d == 0)\n{\n     print \"0\";\n}\nelse\n{\n     $e = \"1\";\n     for($x = 0; $x < $c; $x++)\n     {\n          $e .= \"0\";\n     }\n     print $e;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a1473025640d417a6eb69b1d65708c09", "src_uid": "ac244791f8b648d672ed3de32ce0074d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 2;\n$c = 0;\nwhile(TRUE)\n{\n     $c += $b * ($b + 1);\n     if($b + 1 == $a)\n     {\n          break;\n     }\n     else\n     {\n          $b++;\n     }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "dp"], "code_uid": "279700062a258291727d49bf58321409", "src_uid": "1bd29d7a8793c22e81a1f6fd3991307a", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = intval(fgets(STDIN));\n\n$r = 0;\nfor ($i = 2; $i < $n; $i++)\n    $r += $i * ($i+1);\n\necho $r, \"\\n\";", "lang_cluster": "PHP", "tags": ["math", "greedy", "dp"], "code_uid": "8206f005c003e1a73f9875c4bfca8fa8", "src_uid": "1bd29d7a8793c22e81a1f6fd3991307a", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$prime = array();\n$sum   = array();\n$ans   = array();\n$p     = array();\nGetPrime();\nGetSum();\nGetAnswer();\n\nfscanf(STDIN,\"%s %s\",$num,$k);\n\n\nif( $ans[$num] < $k){\n    echo \"NO\\n\";\n}else{\n    echo \"YES\\n\";\n}\n\nfunction GetAnswer(){\n    global $prime;\n    global $sum;\n    global $ans;\n    $bound = 1e4;\n    $cnt = 0;\n    for($i = 2 ; $i < $bound ; $i++){\n        $ans[$i] = ($sum[$cnt] <= $i) ? ( ++$cnt ) : ($cnt);\n        \n       // echo $i.\"->\".$ans[$i].\", \\n\";\n    }\n}\n\nfunction GetSum(){\n    global $prime;\n    global $sum;\n    global $p;\n    $prime_len = count($prime);\n    $cnt = 0;\n    for($i = 0 ; $i < $prime_len ; $i++){\n        if($p[$prime[$i] + $prime[$i+1] + 1]){ // 和也要是素数\n            $sum[$cnt++] = $prime[$i] + $prime[$i+1] + 1;\n            //echo \"sum = \".$sum[$cnt-1].\"\\n\";\n        }\n    }\n}\n\nfunction GetPrime(){\n    global $prime;    \n    global $p;\n    $end = 1e4;\n    $p = memset($p,1 , $end);\n    $p[1] = 0;\n    for ($i = 2 ; $i < $end/2 ; $i ++){\n        if($p[$i])\n        for ($j = $i+$i ; $j < $end ; $j += $i){\n            if($p[$j])\n            $p[$j] = 0;\n        }\n    }\n    $cnt = 0;\n    for($i = 2 ; $i < $end ; $i++){\n        if($p[$i]){\n            $prime[$cnt++] = $i;\n            //echo $i.\",\";  \n        }\n    }   \n    //echo \"count:\".count ($prime);\n}\n\n\n\nfunction memset($arr , $value , $length){\n    for ($i = 0 ; $i < $length ; $i++){\n        array_push($arr,$value);\n    }\n    return $arr;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "df5efe2ab898619cba3c08421e1e1513", "src_uid": "afd2b818ed3e2a931da9d682f6ad660d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction debug($data, $die = true) {\n    echo '<pre>';\n\n    if (is_array($data)) {\n        print_r($data);\n    } else {\n        var_dump($data);\n    }\n\n    if ($die) {\n        die();\n    }\n\n    echo '</pre>';\n}\n\nfunction stdin() {\n    $stdin = @fopen('data.txt', 'r');\n    if (!$stdin) {\n        $stdin = fopen('php://stdin', 'r');\n    }\n\n    return $stdin;\n}\n\nfunction g() {\n    global $stdin;\n    return trim(fgets($stdin));\n}\n\n$stdin = stdin();\n/****************************************************** Solving block *****************************************************/\nlist($n, $k) = explode(' ', g());\n\n$simple = array(3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997, 1009, 1013, 1019, 1021, 1031, 1033, 1039, 1049, 1051, 1061, 1063, 1069, 1087, 1091, 1093, 1097);\n\n$sum = 0;\n$temp = 2;\n\nforeach($simple as $item) {\n    $number = $temp + $item + 1;\n\n    if($number > $n) break;\n\n    if(in_array($number, $simple)) $sum++;\n\n    $temp = $item;\n}\n\necho $sum >= $k ? 'YES' : 'NO';\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "a8e2ac6cba73869750d1df7dcec4073d", "src_uid": "afd2b818ed3e2a931da9d682f6ad660d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction IsPrime($number)\n{\n        if ($number < 2) {\n                return false;\n        }\n        for ($i=2; $i<=($number / 2); $i++) {\n                if($number % $i == 0) { \n                        return false;\n                }\n        }\n        return true;\n}\n\n$file=file(\"php://stdin\");\n\t$line=$file[0];\n\t$explode=explode(\" \",$line);\n\tfor($i=1;$i<=$explode[0];$i++)\n\t{\n\t\tif(IsPrime($i)){\n\t\t$j++;\n\t\t\t$array[$j]=$i;\n\t\t}\n\t}\n\tfor($i=1;$i<=$j;$i++){\n\t\tif($array[$i]!=1){\n\t\t\n\t\t$nr=$array[$i]+$array[$i-1]+1;\n\t\t\n\t\tif(IsPrime($nr)&&$nr<=$explode[0]){\n\t\t\t$k++;\n\t\t\tif($k>$explode[1]) $pos='YES';\n\t\t}\n\t\t}\n\t}\n\tif($k<$explode[1]) $pos='NO'; else $pos='YES';\n\tif($explode[1]==0)$pos='YES';\n\t $File = \"php://stdout\"; \n $Handle = fopen($File, 'w'); \n fwrite($Handle, $pos);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "592f17462c8ad20b296ca152d65eb832", "src_uid": "afd2b818ed3e2a931da9d682f6ad660d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = array(\"2\", \"3\", \"5\", \"7\");\n$d = array();\n$f = array();\n$g = 0;\nfor($x = 11; $x <= 100; $x++)\n{\n    if((($x % 2) != 0) && (($x % 3) != 0) && (($x % 5) != 0) && (($x % 7) != 0))\n    {\n        array_push($c, $x);\n    }\n}\nfor($x = 101; $x <= 3000; $x++)\n{\n    if((($x % 2) != 0) && (($x % 3) != 0) && (($x % 5) != 0) && (($x % 7) != 0) && (($x % 11) != 0) && (($x % 13) != 0) && (($x % 17) != 0) && (($x % 19) != 0) && (($x % 23) != 0) && (($x % 29) != 0) && (($x % 31) != 0) && (($x % 37) != 0) && (($x % 39) != 0) && (($x % 41) != 0) && (($x % 43) != 0) && (($x % 47) != 0) && (($x % 53) != 0) && (($x % 59) != 0) && (($x % 61) != 0) && (($x % 67) != 0) && (($x % 71) != 0) && (($x % 79) != 0) && (($x % 83) != 0) && (($x % 89) != 0) && (($x % 91) != 0 && (($x % 97) != 0)))\n    {\n        array_push($c, $x);\n    }\n}\nfor($x = 0; $x < count($c); $x++)\n{\n    $e = $c[$x] + $c[$x + 1] + 1;\n    array_push($d, $e);\n}\nfor($x = 0; $x < count($c); $x++)\n{\n    for($y = 0; $y < count($d); $y++)\n    {\n        if($c[$x] == $d[$y])\n        {\n            array_push($f, $d[$y]);\n            break;\n        }\n    }\n}\nfor($x = 2; $x <= $a; $x++)\n{\n    for($y = 0; $y < count($f); $y++)\n    {\n        if($x == $f[$y])\n        {\n            $g++;\n            break;\n        }\n    }\n}\nif($b <= $g)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "89e7e0a89d68166ad2e6feabffeae5d0", "src_uid": "afd2b818ed3e2a931da9d682f6ad660d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = fscanf(STDIN, '%d%d');\n$n = $input[0];\n$k = $input[1];\n$lastPrime = 2;\n$isPrime = true;\n$primes = array();\nfor ($i = 2; $i <= $n; $i++) {\n    foreach ($primes as $prime) {\n        if ($i % $prime == 0) {\n            $isPrime = false;\n            break;\n        }\n    }\n    if ($isPrime) {\n        $primes[] = $i;\n    }\n    $isPrime = true;\n}\n$length = count($primes);\n\n$count = 0;\nfor ($i = 0; $i < $length; $i ++) {\n    if ($primes[$i] + $primes[$i+1] > $primes[$length-1] ) {\n        break;\n    }\n    if (in_array($primes[$i] + $primes[$i+1] + 1,$primes)) {\n        $count++;\n    }\n}\nif ($count>=$k) {\n    echo 'YES';\n} else {\n    echo 'NO';\n}\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "f28977a002ca5cdea5663cdc7af3cfb0", "src_uid": "afd2b818ed3e2a931da9d682f6ad660d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$handle = fopen(\"php://stdin\",\"r\");\n$n = (int)fgets($handle);\n$string = strtoupper(trim(fgets($handle)));\n\n$all_chars = range(\"A\",\"Z\");\n\n$word_chars = str_split($string);\n$word_chars = array_combine($word_chars, $word_chars);\n\n\nforeach($all_chars as $char){\n   if(!isset($word_chars[$char])){\n\techo \"NO\";\n\treturn;\n   }\n}\n\necho \"YES\";", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "a7674fb392c58d6685a548b34e9e8996", "src_uid": "f13eba0a0fb86e20495d218fc4ad532d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * Created by PhpStorm.\n * User: scherbuk\n * Date: 03.03.15\n * Time: 4:14\n */\n\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n\nif($a < 26){\n    echo \"NO\";\n}else{\n    $b = strtoupper($b);\n    for ($i = 65; $i <= 90 ; $i++) {\n        $exit = 0;\n        $x = chr($i);\n        for($j = 0; $j <= strlen($b); $j++ ){\n            if($b[$j] == $x){\n                $exit++;\n            }\n        }\n            if($exit == 0){\n                echo \"NO\";\n                break;\n            }else{\n                if($i == 90){\n                    echo \"YES\";\n                }\n                continue;\n            }\n        }\n    }\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "6d9b1c926f4b19965e6b4352222c179a", "src_uid": "f13eba0a0fb86e20495d218fc4ad532d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = readline();\n$str = readline();\n\n$str = strtolower($str);\n\n$resArr = [];\n\nfor($i = 0; $i < $n; $i++){\n    $resArr[$str[$i]] = 1;\n}\n\nif(count($resArr) > 25){echo \"YES\"; }else{ echo \"NO\";};", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "b533624c0c06c225ab8a121df6f92f96", "src_uid": "f13eba0a0fb86e20495d218fc4ad532d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%n\", $n);\nfscanf(STDIN, \"%s\", $s);\n$arr = array_unique(str_split(strtolower($s)));\nif (count($arr) == 26)\n\techo \"YES\";\nelse\n\techo \"NO\";\n?>\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "52ae697d737474e8b2a95cb7cae43b3d", "src_uid": "f13eba0a0fb86e20495d218fc4ad532d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "       \n        <?php\n  $fr = fopen(\"php://stdin\", \"r\");\n  $fw = fopen(\"php://stdout\", \"w\");\n \n  fscanf($fr, \"%s\", $num);\n           fscanf($fr, \"%s\", $str);\n           \n           $str = strtoupper($str);\n$arr1 = str_split($str);\n\n$r= range('A', 'Z');\n    if ($num < 26) {\n fprintf($fw,\"NO\");\n        }\n        else{\n     \n\n\nfor ($index1 = 0; $index1 < count($arr1); $index1++) {\n    for ($index = 'A'; $index <= 'Z'; $index++) {\n        if ($arr1[$index1] == $index) {\n$r= array_diff($r, array($index));\n\n    }\n}\n    \n        }\n\n    \n    if ($r == NULL) {\n fprintf($fw,\"YES\");\n        }\n else { fprintf($fw,\"NO\");}\n        }\n  fclose($fr);\n  fclose($fw);\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "a1c3586130e13a4b8bfc1f191601deac", "src_uid": "f13eba0a0fb86e20495d218fc4ad532d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = str_split(strtolower($b));\n$d = array_unique($c);\nif(count($d) == 26)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "2ec44be790ba140e01760542230aa9aa", "src_uid": "f13eba0a0fb86e20495d218fc4ad532d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdin = fopen('php://stdin', 'r');\n$aTemp = array();\nwhile(!feof($stdin))\n{\n    $aTemp[]= fgets($stdin);\n}\n$iCount = $aTemp[0];\n$s = strtolower($aTemp[1]);\n\n$aAlph = array(\n    \"a\",\"b\",\"c\",\"d\",\"e\",\"f\",\"g\",\"h\",\"i\",\"j\",\"k\",\"l\",\"m\",\"n\",\"o\",\"p\",\"q\",\"r\",\"s\",\"t\",\"u\",\"v\",\"w\",\"x\",\"y\",\"z\"\n);\nif($iCount < 26)\n{\n    echo 'No';\n}\nelse\n{\n    $i = 0;\n    $aTemp = array();\n    foreach (str_split($s) AS $l)\n    {\n        if(!in_array($l, $aTemp) && in_array($l, $aAlph))\n        {\n            $aTemp[] = $l;\n        }\n    }\n    \n    sort($aTemp);\n    echo $aAlph == $aTemp ? 'Yes' : 'No';\n}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "82f9aadb88daa3ed556a07ad8c1280eb", "src_uid": "f13eba0a0fb86e20495d218fc4ad532d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$alfa = array();\nfor ($i = 0; $i < 26; $i++) {\n    $alfa[ord(\"a\") + $i] = 0;\n}\n\nfscanf(STDIN, \"%d\", $n);\nfscanf(STDIN, \"%s\", $s);\n\n\nfor ($i = 0; $i < strlen($s); $i++) {\n    $alfa[ord(strtolower($s[$i]))]++;\n}\n\n$i = 0;\nwhile ($i < 26 && $alfa[ord(\"a\") + $i] > 0) $i++;\n\necho $i == 26 ? \"YES\" : \"NO\";\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "79855a0105263d3d15082a9685c81020", "src_uid": "f13eba0a0fb86e20495d218fc4ad532d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$line = str_split(strtolower(trim(fgets(STDIN))),1);\n$unique = array_unique($line);\nif (count($unique)>=26) echo \"YES\";\nelse echo \"NO\";\n\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "98537e829ad8be99e93356b6f238916d", "src_uid": "f13eba0a0fb86e20495d218fc4ad532d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$handle = fopen (\"php://stdin\",\"r\");\nfscanf($handle,\"%d\",$n);\nfscanf($handle,\"%s\",$s);\n\n$s=strtolower($s);\n$s2 = str_split($s);\n$b=array();\nfor ($i=0; $i < $n; $i++) { \n\t$b[$s2[$i]]=1;\n}\nif(count($b)==26){\n\tprint \"YES\";\n}else{\n\tprint \"NO\";\n}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "c3a6d7866816a2aba3ac890213a2e84e", "src_uid": "f13eba0a0fb86e20495d218fc4ad532d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction getIntList($number = 1){\n    $chunk = \"%d \";\n    $format = str_repeat($chunk, $number);\n    $result = fscanf(STDIN, $format);\n    return $result;\n}\nfunction getStringList($number = 1){\n    $chunk = \"%s \";\n    $format = str_repeat($chunk, $number);\n    $result = fscanf(STDIN, $format);\n    return $result;\n}\nfunction getInt()\n{\n    $result = getIntList(1);\n    return reset($result);\n}\nfunction getString()\n{\n    $result = getStringList();\n    return reset($result);\n}\nfunction answer($str)\n{\n    echo $str . PHP_EOL;\n}\nfunction task(array $minutes, $d)\n{\n    $devu = 0;\n    foreach ($minutes as $minute) {\n        $devu += $minute;\n        $devu += 10;\n    }\n    $devu -= 10;\n\n    if ($devu > $d) {\n        return -1;\n    }\n\n    $churu = 2 * (count($minutes)-1);\n    $churu += intval(floor(($d-$devu)/5));\n\n    return $churu;\n}\nlist($n, $d) = getIntList(2);\n$minutes = getIntList($n);\n$result = task($minutes, $d);\nanswer($result);", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "933cf34cd3bdfba2740d8b2401eb9e46", "src_uid": "b16f5f5c4eeed2a3700506003e8ea8ea", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// $n = 3;\n// $d = 30;\n// $arr = array(2,2,1);\n\n$dir = fopen(\"php://stdin\", 'r');\n\n$line1 = trim(fgets($dir));\n$line1 = explode(' ', $line1);\n$n = $line1[0];\n$d = $line1[1];\n$line2 = trim(fgets($dir));\n$line2 = explode(' ', $line2);\n$arr = array();\nforeach ($line2 as $key => $value) {\n    array_push($arr, $value);\n}\n\n// var_dump($arr,$n,$d);\n// echo stream_get_contents($dir);\n\nfunction devu($n,$d,$arr){\n    $t = 0;\n    $jok = -2;\n    foreach ($arr as $key => $value) {\n        $t += $value;\n        $jok += 2;\n    }\n    $count = count($arr);\n    $t = ($count-1)*10 + $t;\n    if($d < $t)\n        return -1;\n\n\n    $l = intval(($d-$t)/5);\n\n    $jok += $l;\n\n    return $jok;\n}\n\necho devu($n,$d,$arr);\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "b1abc778b6f1313f77b6254b683b3aee", "src_uid": "b16f5f5c4eeed2a3700506003e8ea8ea", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// $n = 3;\n// $d = 30;\n// $arr = array(2,2,1);\n\n $dir = fopen(\"php://stdin\", 'r');\n//$dir = fopen('text.txt', 'r');\n$line1 = trim(fgets($dir));\n$line1 = explode(' ', $line1);\n$n = $line1[0];\n$d = $line1[1];\n$line2 = trim(fgets($dir));\n$line2 = explode(' ', $line2);\n$arr = array();\nforeach ($line2 as $key => $value) {\n    array_push($arr, $value);\n}\n\n// var_dump($arr,$n,$d);\n// echo stream_get_contents($dir);\n\nfunction devu($n,$d,$arr){\n    $t = 0;\n    $jok = -2;\n    foreach ($arr as $key => $value) {\n        $t += $value;\n        $jok += 2;\n    }\n    $count = count($arr);\n    $t = ($count-1)*10 + $t;\n    if($d < $t)\n        return -1;\n\n\n    $l = intval(($d-$t)/5);\n\n    $jok += $l;\n\n    return $jok;\n}\n\necho devu($n,$d,$arr);\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "5adffb432f37c75dc3e87e8e0e02a7f4", "src_uid": "b16f5f5c4eeed2a3700506003e8ea8ea", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction getIntList($number = 1){\n    $chunk = \"%d \";\n    $format = str_repeat($chunk, $number);\n    $result = fscanf(STDIN, $format);\n    return $result;\n}\nfunction getStringList($number = 1){\n    $chunk = \"%s \";\n    $format = str_repeat($chunk, $number);\n    $result = fscanf(STDIN, $format);\n    return $result;\n}\n\nfunction task(array $minutes, $d)\n{\n    $songs = count($minutes);\n\n    $party_time = (array_sum($minutes) + $songs * 10) - 10;\n\n    if ($party_time > $d) {\n        return -1;\n    }\n\n    $churu_jokes = ($songs -1 ) * 2;\n    $churu_jokes += intval(floor($d - $party_time) / 5);\n\n    return $churu_jokes;\n}\n\n\nlist($n, $d) = getIntList(2);\n$minutes = getIntList($n);\n\necho task($minutes, $d) . PHP_EOL;\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "5e95368f02de1168f05abb7d0ef272b2", "src_uid": "b16f5f5c4eeed2a3700506003e8ea8ea", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = ($a - 1) * 10;\n$e = array_sum($c) + $d;\nif($e > $b)\n{\n    print \"-1\";\n}\nelse\n{\n    $f = $b - $e;\n    $g = floor($f / 5);\n    $h = $d / 5;\n    print $g + $h;\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "412d7c227b523922ae5399d236916844", "src_uid": "b16f5f5c4eeed2a3700506003e8ea8ea", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdin = fopen(\"php://stdin\", \"r\");\n$hotel = '';\nfscanf($stdin, \"%[^\\n]\", $hotel);\n$hotel = explode(\" \", $hotel);\n$restrict = [];\n\nfor ($i = 0; $i < $hotel[2]; $i++) {\n    $restrict[$i] = '';\n    fscanf($stdin, \"%[^\\n]\", $restrict[$i]);\n    $restrict[$i] = explode(\" \", $restrict[$i]);\n}\n$max = 0;\nfor ($i = 0; $i < $hotel[0]; $i++) {\n    $isrestrict = false;\n    $temp = $hotel[1] * $hotel[1];\n    $minn = $hotel[1];\n    for ($j = 0; $j < $hotel[2]; $j++) {\n        if ($i + 1 >= (int)$restrict[$j][0] && $i + 1 <= (int)$restrict[$j][1] && (int)$restrict[$j][2] < $minn) {\n            $profit = (int)$restrict[$j][2] * $restrict[$j][2];\n            $temp = ($temp > $profit) ? $profit : $temp;\n            $minn = $restrict[$j][2];\n            $isrestrict = true;\n        }\n    }\n    if (!$isrestrict) {\n        $max += $hotel[1] * $hotel[1];\n    } else {\n        $max += $temp;\n    }\n}\necho $max; // your code goes here \n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "d1f51eed6ec1979e4262c055b25e016e", "src_uid": "f22b6dab443f63fb8d2d288b702f20ad", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdin = fopen(\"php://stdin\", \"r\");\n$hotel = '';\nfscanf($stdin, \"%[^\\n]\", $hotel);\n$hotel = explode(\" \", $hotel);\n$restrict = [];\n\nfor ($i = 0; $i < $hotel[2]; $i++) {\n    $restrict[$i] = '';\n    fscanf($stdin, \"%[^\\n]\", $restrict[$i]);\n    $restrict[$i] = explode(\" \", $restrict[$i]);\n}\n$max = 0;\nfor ($i = 0; $i < $hotel[0]; $i++) {\n    $isrestrict = false;\n    $temp = $hotel[1] * $hotel[1];\n    $minn = $hotel[1];\n    for ($j = 0; $j < $hotel[2]; $j++) {\n        if ($i + 1 >= (int)$restrict[$j][0] && $i + 1 <= (int)$restrict[$j][1] && (int)$restrict[$j][2] <= $minn) {\n            $profit = (int)$restrict[$j][2] * (int)$restrict[$j][2];\n            if ($minn == (int)$restrict[$j][2]) {\n                $temp = ($temp < $profit) ? $profit : $temp;\n            } else {\n                $temp = $profit;\n            }\n            \n            $minn = (int)$restrict[$j][2];\n            $isrestrict = true;\n        }\n    }\n    if (!$isrestrict) {\n        $max += $hotel[1] * $hotel[1];\n    } else {\n        $max += $temp;\n    }\n}\necho $max; // your code goes here \n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "d1700cf34346e28c87732f4816a656c6", "src_uid": "f22b6dab443f63fb8d2d288b702f20ad", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n// შიო გვეტაძის \"მონანიება\"\n\n// \"საშ კა ჩერ ქე ზი \" ( : )\n\n$sashkaCherkezi = 1234321;\n\nlist($n,$k) = explode(\" \",trim(fgets(STDIN)));\n\n$arr = explode(\" \",trim(fgets(STDIN)));\n\nfor($i=0;$i<$n;$i++)\n    if($k % $arr[$i] == 0 && $k/$arr[$i] < $sashkaCherkezi)\n        $sashkaCherkezi = $k/$arr[$i];\n\necho $sashkaCherkezi;\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "445345c3f249f760f01c70d62c95e333", "src_uid": "80520be9916045aca3a7de7bc925af1f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = array();\nfor($x = 0; $x < $a; $x++)\n{\n     $e = $b % $c[$x];\n     if($e == 0)\n     {\n          $f = $b / $c[$x];\n          $d[count($d)] = $f;\n     }\n}\nprint min($d);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "30498537c52f9ef1c70ad866984d7340", "src_uid": "80520be9916045aca3a7de7bc925af1f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$k = explode(' ', trim(fgets(STDIN)))[1];\n\n$a = explode(' ', trim(fgets(STDIN)));\n\nrsort($a);\n\nforeach ($a as $el) {\n    $result = $k / $el;\n\n    if (is_int($result)) {\n        echo $result;\n        return;\n    }\n}\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ca4a39ef3ce7a9c5bd81ab8e4e630729", "src_uid": "80520be9916045aca3a7de7bc925af1f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = array();\nfor($x = 0; $x < $a; $x++)\n{\n     $e = $b % $c[$x];\n     if($e == 0)\n     {\n          $f = $b / $c[$x];\n          $d[count($d)] = $f;\n     }\n}\nprint min($d);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a9dcdf15a889ae0202817ad130ba9a44", "src_uid": "80520be9916045aca3a7de7bc925af1f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\n$a = explode(\" \", trim(fgets(STDIN)));\nsort($a);\n$x = 0;\nfor($i=0;$i<$n;$i+=2){\n    $x += $a[$i+1] - $a[$i];\n}\necho $x;\n?>", "lang_cluster": "PHP", "tags": ["sortings"], "code_uid": "1ce9b2735ecc17911086b446b15df70c", "src_uid": "55485fe203a114374f0aae93006278d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = readline();\n$ara = explode(' ', readline());\nrsort($ara);\n$cnt = 0;\nfor($i=1; $i<$n; $i+=2)\n\t$cnt += ($ara[$i-1] - $ara[$i]);\necho $cnt. \"\\n\";", "lang_cluster": "PHP", "tags": ["sortings"], "code_uid": "18ddaa28be508a6350d807a6127db473", "src_uid": "55485fe203a114374f0aae93006278d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$students = explode(' ', trim(fgets(STDIN)));\nsort($students);\n$c = 0;\nwhile (($a = array_pop($students) )&&($b = array_pop($students))) {\n        $c += $a-$b;\n}\necho $c;", "lang_cluster": "PHP", "tags": ["sortings"], "code_uid": "803ab5874890a42738334a37415167ad", "src_uid": "55485fe203a114374f0aae93006278d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*****************************************/\nclass InputReader {protected $_fh;public function __construct($fileHandler = STDIN){$this->_fh = $fileHandler;}\n\tpublic function readInt() {$d = trim(fgets($this->_fh));return (int)$d;}\n\tpublic function readArrayOfInt($size, $indexFrom = 0) {$a = [];$ind = $indexFrom;foreach (explode(' ', fgets($this->_fh)) as $item) {$a[$ind++] = (int)$item;}return $a;}\n\tpublic function readArrayOfString($size, $indexFrom = 0) {$a = [];$ind = $indexFrom;foreach (explode(' ', fgets($this->_fh)) as $item) {$a[$ind++] = $item;}return $a;}\n}\n\n/* Perform action N times. Can return values in array */\nfunction ntimes($n, $func, $returnResults = false) {$a = [];for ($i=1; $i<=$n; $i++) {$result = $func();if ($returnResults) {$a[$i] = $result;}}return $a;}\n\n/* Integral. Keys preserved. By reference. */\nfunction cumsum(&$a){$sum = 0;foreach($a as $k=>$v) {$a[$k] += $sum;$sum = $a[$k];}}\n\n/* Difference. Keys preserved. By reference. */\nfunction diff(&$a){$prev = 0;foreach($a as $k=>$v) {$buf=$a[$k];$a[$k]-=$prev;$prev = $buf;}}\n\nfunction bitCount($n){$cnt = 0;for ($j=$n; $j; $j>>=1){$cnt += $j&1;}return $cnt;}\n\nclass PrimeUtils {static protected $divisors = [1 => [1=>true],2 => [1=>true, 2=>true],];static protected $primes = []; \n\tstatic public function primes($limit){$a = str_repeat(chr(85), ($limit>>3) + 1);$a[0] = chr(83);for ($i=3; $i*$i < $limit; $i+=2) {if (ord($a[$i>>3]) & (1<<($i%8))) {;} else {for ($k=$i; $k*$i<$limit; $k++) {$n = $k*$i;$a[$n>>3] = chr(ord($a[$n>>3]) | (1<<($n%8)));}}}yield 2;for ($i=3; $i<$limit; $i+=2) {if (!(ord($a[$i>>3]) & (1<<($i%8)))) {yield $i;}}}\n\tstatic public function divisors($n, $lp = 2) {if (isset(self::$divisors[$n])) {return self::$divisors[$n];}if (empty(self::$primes)) {$primes = [];foreach (self::primes(1e3) as $prime) {$primes[$prime] = $prime;}self::$primes = $primes;}$r = [];foreach (self::$primes as $p) {if ($p>=$lp) {if ($n < $p*$p) {$r = [1=>true, $n=>true];break;} elseif ($n%$p==0) {foreach([1, $p] as $pre) {foreach(self::divisors(intdiv($n,$p), $p) as $nxt=>$v) {$r[$nxt*$pre] = true;}}break;}}}self::$divisors[$n] = $r;return self::$divisors[$n];}\n}\n\n/*****************************************/\n\n$ir = new InputReader();\n\n/* TASK */\n\n$n = $ir->readInt();\n$a = $ir->readArrayOfInt($n);\n\nsort($a);\n$cnt = 0;\n\nfor ($i=0; $i<intval($n/2); $i++) {\n\t$cnt += ($a[2*$i+1] - $a[2*$i]);\n}\n\necho $cnt . \"\\n\";\n", "lang_cluster": "PHP", "tags": ["sortings"], "code_uid": "309c4019f78823fb5fff55b9dff06500", "src_uid": "55485fe203a114374f0aae93006278d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = (int) fgets(STDIN);\n$str = fgets(STDIN);\n$arr = explode( ' ', $str);\n$newArr = [];\nsort($arr, SORT_NUMERIC);\nfor($i = 1; $i < $n; $i++) {\n    if((int)$arr[$i] == (int)$arr[$i-1]) {\n        $arr[$i] = 0;\n        $arr[$i-1] = 0;\n    }\n}\nforeach($arr as $v) {\n    if ($v != 0) {\n        $newArr[] = (int)$v;\n    }\n}\n$sum = 0;\n$n = count($newArr);\nfor($i = 1; $i < $n; $i+=2) {\n    $sum += (int)$newArr[$i] - (int)$newArr[$i-1];\n}\necho $sum;", "lang_cluster": "PHP", "tags": ["sortings"], "code_uid": "589079db0ec8cf4afcf7fd491093ff13", "src_uid": "55485fe203a114374f0aae93006278d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$dir = fopen(\"php://stdin\", 'r');\n$result=  stream_get_contents($dir);\n\n$res = explode(PHP_EOL,$result);\nforeach($res as $line){\n    $ress[] = explode(' ',$line);\n}\n$secline = $ress[1];\nsort($secline);\n\nfor($i = 1; $i <= $ress[0][0]; $i++) {\n    $total += $secline[$i] - $secline[$i -1 ];\n    $i++;\n}\n\n\necho $total;\n?>", "lang_cluster": "PHP", "tags": ["sortings"], "code_uid": "241dc685bf9e832c01cb37b845d71d4c", "src_uid": "55485fe203a114374f0aae93006278d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\tfscanf(STDIN, \"%s\",$s1);\n\tfscanf(STDIN, \"%s\",$s2);\n\tfor($i=0;$i<strlen($s1);$i++)\n\t  $out .= ($s1[$i]==$s2[$i])?\"0\":\"1\";\n\techo $out;  \n\t\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c57d37010c2e4183c0b0ea6429645d0a", "src_uid": "3714b7596a6b48ca5b7a346f60d90549", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str1 = trim(fgets(STDIN));\n$str2 = trim(fgets(STDIN));\n\nfor ($i = 0; $i < strlen($str1); $i++)\n    echo $str1[$i] === $str2[$i] ? \"0\" : \"1\";\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "71c99e263a4de3ce72997885cc2451dc", "src_uid": "3714b7596a6b48ca5b7a346f60d90549", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*\n * A. Быстрый математик\n */\n\n$s1 = trim(fgets(STDIN));\n$s2 = trim(fgets(STDIN));\n$output = array();\n\nfor( $i=0; $i<strlen($s1); $i++ ){\n    if( $s1[$i] != $s2[$i] ){\n        $output[] = 1;\n    }else{\n        $output[] = 0;\n    }\n}\necho implode('',$output);\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b238a2c0dbefb48b87a961ef0b74b26e", "src_uid": "3714b7596a6b48ca5b7a346f60d90549", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%s\", $a);\n    fscanf(STDIN, \"%s\", $b);\n    \n    for ($i = 0; $i < strlen($a); $i++){\n        if ($a[$i]  == $b[$i]){\n            echo 0;\n        }\n        else {\n            echo 1;\n        }\n    }\n        \n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "888ae693045807ad3bee59ed762e414f", "src_uid": "3714b7596a6b48ca5b7a346f60d90549", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%s\",$str1);\nfscanf(STDIN,\"%s\",$str2);\n$str3=\"\";\nfor($i=0;$i<strlen($str1);$i++)\n{\n\t\n\t\tif($str1[$i]==$str2[$i])\n\t\t{\n\t\t\t$str3.=0;\n\t\t\t\n\t\t}\n\t\t\n\t\telse\t$str3.=1;\n\n\t}\necho $str3;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c7890d88bf135677b91fea4ff0a91d32", "src_uid": "3714b7596a6b48ca5b7a346f60d90549", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n1 = trim(fgets(STDIN));\n$n2 = trim(fgets(STDIN));\n$r=array();\nfor($i=0;$i<strlen($n1);$i++) {\n    if($n1[$i]==$n2[$i]){\n        $r[]='0';\n        continue;\n    }\n    $r[]='1';\n}\necho(implode('',$r));\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ba724c1c801de371fdd5f43bc747be15", "src_uid": "3714b7596a6b48ca5b7a346f60d90549", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction input()\n{\n    while (($line = trim(fgets(STDIN))) != PHP_EOL) {\n        yield $line;\n    }\n}\n\n$COUNT = 0;\n$xy = array();\nforeach (input() as $line) {\n    $q = $line;\n\n    // array_push($xy, array_map('intval',str_split($q)));\n    array_push($xy, $q);\n\n    if (++$COUNT > 1) {\n        break;\n    }\n}\n\nfor($i = 0; $i<strlen($xy[0]); ++$i) {\n   if ($xy[0][$i] != $xy[1][$i])\n        echo 1;\n    else {\n        echo 0;\n    }\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "cca02f9cd5fdd981fa8a1c459d75077b", "src_uid": "3714b7596a6b48ca5b7a346f60d90549", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%s\", $a);\nfscanf(STDIN, \"%s\", $b);$c='';\nfor($i=0;$i<strlen($a);$i++){\nif($a[$i]==$b[$i]){$c.=0;}else{$c.=1;}\n}\nprintf(\"%s\\n\", $c);\n\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "513c8c75f75c7684f9192a9360000b8c", "src_uid": "3714b7596a6b48ca5b7a346f60d90549", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    define('DEBUG', 0);\n    \n    if(DEBUG) $GLOBALS['file'] = fopen('input.txt', 'r');\n    function debug($var){echo '<pre>';print_r($var);echo '</pre>';} \n    function read_line()\n    {       \n        if(DEBUG) { $file = $GLOBALS['file'];$line = trim(fgets($file));}\n        else $line = trim(fgets(STDIN));\n        return $line;\n    }\n    function get_array($line){return explode(' ', $line);}\n    function read_array(){return get_array(read_line());}   \n    //echo \"$s\\n\";\n    /*****************************************************************/\n    \n    $line1 = read_line();\n    $line2 = read_line();\n    $len = strlen($line1);\n    \n    for ($i=0; $i<$len; $i++)\n    {\n        $char1 = $line1[$i];\n        $char2 = $line2[$i];\n        \n        if($char1 == $char2) echo '0';\n        else echo '1';\n    }\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "2fa4a49781d2f721bd51cc5dc40aea09", "src_uid": "3714b7596a6b48ca5b7a346f60d90549", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%s\", $a);\n    fscanf(STDIN, \"%s\", $b);\n    $arr = array();\n        for ($i = 0; $i < strlen($a); $i++){\n            if ($a[$i]  == $b[$i]){\n                $arr[$i] = 0;\n            }\n            else $arr[$i] = 1;\n            echo $arr[$i];\n        }\n        ", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c73283dc2b0f943744e93aad64ad42fd", "src_uid": "3714b7596a6b48ca5b7a346f60d90549", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%f%f\",$n,$k);\n$n=floor(($n+1)/2);\necho $k<=$n?2*$k-1:2*($k-$n);\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "8e3ab8efa11443645476701c5780748d", "src_uid": "1f8056884db00ad8294a7cc0be75fe97", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%f%f\",$n,$k);\n$n=floor(($n+1)/2);\necho $k<=$n?2*$k-1:2*($k-$n);\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "aa900bd2d62c20b06ac31507e942a5dd", "src_uid": "1f8056884db00ad8294a7cc0be75fe97", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": " <?php\n     \n    $input = fopen(\"php://stdin\",\"r\");\n    while(fscanf($input,\"%s %s\",$n,$k)){//echo $n;\n        if($k<=$n && $n<=pow(10,12) && $k>0){\n            \n            $half = ceil($n/2);\n            if($k<=$half){\n                $num = 2*$k-1;\n            }else{\n                $num = 2*($k-$half);\n            }\n            echo $num.\"\\n\";\n        }\n        $n = $k = null;\n    }\n    ?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "9749abbeb72729f6c93e3210b14a0dd2", "src_uid": "1f8056884db00ad8294a7cc0be75fe97", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$count_even = $count_odds = $n = $k = $value = 0;\nfscanf(STDIN, \"%f%f\", $n, $k);\nif ($n%2 == 0) {\n    $count_even = $n/2;\n    $count_odds = $n/2;\n} else {\n    $count_even = ($n - 1)/2;\n    $count_odds = ($n - 1)/2 + 1;\n}\n\nif ($k <= $count_odds) {\n    $value = $k * 2 - 1;\n} else {\n    $value = ($k - $count_odds) * 2;\n}\nprint($value);", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "93ebba27f8ff80c67271f6e8d258bb5b", "src_uid": "1f8056884db00ad8294a7cc0be75fe97", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist ($k,$n) = explode(\" \",trim(fgets(STDIN)));\n$n=$n-1;\nif ($n<$k/2) echo intval($k/($k/2))*$n+1;\nelse echo 2+2*($n-round($k/2));\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "03c81c7f0e066ad63bf3f261b773cc49", "src_uid": "1f8056884db00ad8294a7cc0be75fe97", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%f %f\",$n,$k);\n$mid=ceil($n/2);\necho $k<=$mid?2*$k-1:2*($k-$mid);", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "db40a8c0bf7847668dffab3db7d1fa13", "src_uid": "1f8056884db00ad8294a7cc0be75fe97", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = ceil($a / 2);\nif($b <= $c)\n{\n    printf(\"%.0f\", ($b * 2) - 1);\n}\nelseif($b > $c)\n{\n    printf(\"%.0f\", ($b - $c) * 2);\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "6edcb202b3bf3a923a543f7331ff3f95", "src_uid": "1f8056884db00ad8294a7cc0be75fe97", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\nlist($n,$k) = explode(\" \",trim(fgets($f)));\n\n\n$mod = ceil($n/2);\n\n//echo(\"$k $mod\\n\");\n\nif ($k<=$mod){\n    echo ($k-1)*2+1;\n    exit;\n} else {\n    echo ($k-$mod)*2;\n}", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "82e0d11f12937ea4070f35f6f9becccd", "src_uid": "1f8056884db00ad8294a7cc0be75fe97", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=explode(\" \", trim(fgets(STDIN)));\n$temp=ceil($n[0]/2);\n\nif ($n[1] <= $temp) {\n\techo (($n[1] * 2)-1);\n}else{\n\techo (2 * ($n[1]-$temp));\n}\n\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "1d966f2a4084d475cefefa2acc25adbb", "src_uid": "1f8056884db00ad8294a7cc0be75fe97", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$input = trim(fgets(STDIN));\n\t$x = explode(\" \", $input);\n\t$n = $x[0];\n\t$k = $x[1];\n\t$mid = ceil($n/2);\n\tif($k <= $mid)\n\t\t$result = (2*$k)-1;\n\telse\n\t{\n\t\t$y = $k - $mid;\n\t\t$result = 2 * $y;\n\t}\n\techo $result;\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "2f702232ebf74bde8366fb4b799851d1", "src_uid": "1f8056884db00ad8294a7cc0be75fe97", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s1 = str_split(trim(fgets(STDIN)));\n$s2 = str_split(trim(fgets(STDIN)));\n$s3 = str_split(trim(fgets(STDIN)));\n$s4 = str_split(trim(fgets(STDIN)));\n$s5 = str_split(trim(fgets(STDIN)));\n$s6 = str_split(trim(fgets(STDIN)));\n$s7 = str_split(trim(fgets(STDIN)));\n$s8 = str_split(trim(fgets(STDIN)));\n$m = array();\n$a1 = 0;\n$a2 = 0;\n$a3 = 0;\n$a4 = 0;\n$a5 = 0;\n$a6 = 0;\n$a7 = 0;\n$a8 = 0;\n$b1 = 0;\nfor($x = 0; $x < 8; $x++)\n{\n    if($s1[$x] == \"B\")\n    {\n        $a1++;\n        if($a1 == 8) { $b1++; }\n    }\n    else\n    {\n        array_push($m, $x+1);    \n    }\n    if($s2[$x] == \"B\")\n    {\n        $a2++;\n        if($a2 == 8) { $b1++; }\n    }\n    else\n    {\n        array_push($m, $x+1);    \n    }\n    if($s3[$x] == \"B\")\n    {\n        $a3++;\n        if($a3 == 8) { $b1++; }\n    }\n    else\n    {\n        array_push($m, $x+1);    \n    }\n    if($s4[$x] == \"B\")\n    {\n        $a4++;\n        if($a4 == 8) { $b1++; }\n    }\n    else\n    {\n        array_push($m, $x+1);    \n    }\n    if($s5[$x] == \"B\")\n    {\n        $a5++;\n        if($a5 == 8) { $b1++; }\n    }\n    else\n    {\n        array_push($m, $x+1);    \n    }\n    if($s6[$x] == \"B\")\n    {\n        $a6++;\n        if($a6 == 8) { $b1++; }\n    }\n    else\n    {\n        array_push($m, $x+1);    \n    }\n    if($s7[$x] == \"B\")\n    {\n        $a7++;\n        if($a7 == 8) { $b1++; }\n    }\n    else\n    {\n        array_push($m, $x+1);    \n    }\n    if($s8[$x] == \"B\")\n    {\n        $a8++;\n        if($a8 == 8) { $b1++; }\n    }\n    else\n    {\n        array_push($m, $x+1);    \n    }\n}\n$m = count(array_unique($m));\nif(8 - $m + $b1 == 16)\n{\n    print 8;\n}\nelse\n{\n    print 8 - $m + $b1;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "constructive algorithms"], "code_uid": "f5154cc230da9a2d5e62fcfc998235ce", "src_uid": "8b6ae2190413b23f47e2958a7d4e7bc0", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction debug($data, $die = true) {\n    echo '<pre>';\n\n    if (is_array($data)) {\n        print_r($data);\n    } else {\n        var_dump($data);\n    }\n\n    if ($die) {\n        die();\n    }\n\n    echo '</pre>';\n}\n\n$stdin = @fopen('data.txt', 'r');\nif (!$stdin) {\n    $stdin = fopen('php://stdin', 'r');\n}\n\nfunction g() {\n    global $stdin;\n    return trim(fgets($stdin));\n}\n\n/****************************************************** Solving block *****************************************************/\n$board = array();\n\nfor ($i = 0; $i < 8; $i++) {\n    $board[] = g();\n}\n\n$xCnt = 0;\n$yCnt = 0;\nfor ($i = 0; $i < 8; $i++) {\n    $xLine = 1;\n    $yLine = 1;\n\n    for ($j = 0; $j < 8; $j++) {\n        if(substr($board[$i], $j, 1) == 'W') {\n            $xLine = 0;\n        }\n        if(substr($board[$j], $i, 1) == 'W') {\n            $yLine = 0;\n        }\n    }\n\n    $xCnt += $xLine;\n    $yCnt += $yLine;\n}\n\nif($xCnt < 8) {\n    echo $xCnt + $yCnt;\n} else {\n    echo 8;\n}\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "constructive algorithms"], "code_uid": "7dfaca9c0cf15ac058701d5f5ba09a8c", "src_uid": "8b6ae2190413b23f47e2958a7d4e7bc0", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$board = array();\nfor ($i = 0; $i < 8; $i++)\n{\n    $board[$i] = rtrim(fgets(STDIN));\n}\n$ret = 0;\nfor ($i = 0; $i < 8; $i++)\n{\n    $flag = true;\n    $flag2 = true;\n    for ($j = 0; $j < 8; $j++)\n    {\n        if ($board[$i][$j] == 'W') $flag = false;\n        if ($board[$j][$i] == 'W') $flag2 = false;\n    }\n    if ($flag) $ret++;\n    if ($flag2) $ret++;\n}\nif ($ret == 16) $ret = 8;\necho \"$ret\\n\";\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "constructive algorithms"], "code_uid": "4bdda571fb39fb42789c89fe1b254225", "src_uid": "8b6ae2190413b23f47e2958a7d4e7bc0", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$d = array();\nfor($i=1;$i<=8;$i++){\n $d[$i] = trim(fgets(STDIN));\n}\n\n$m = 0;\n$m += $d[1] == 'BBBBBBBB' ? 1 : 0;\n$m += $d[2] == 'BBBBBBBB' ? 1 : 0;\n$m += $d[3] == 'BBBBBBBB' ? 1 : 0;\n$m += $d[4] == 'BBBBBBBB' ? 1 : 0;\n$m += $d[5] == 'BBBBBBBB' ? 1 : 0;\n$m += $d[6] == 'BBBBBBBB' ? 1 : 0;\n$m += $d[7] == 'BBBBBBBB' ? 1 : 0;\n$m += $d[8] == 'BBBBBBBB' ? 1 : 0;\n\nfor($i=0;$i<8;$i++){\n $m += $d[1][$i].$d[2][$i].$d[3][$i].$d[4][$i].$d[5][$i].$d[6][$i].$d[7][$i].$d[8][$i] == 'BBBBBBBB' ? 1 : 0;\n}\n\nif($m==16) $m = 8;\n\nprint $m;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "constructive algorithms"], "code_uid": "bc5b032234e948e72c25559deb53b18b", "src_uid": "8b6ae2190413b23f47e2958a7d4e7bc0", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $fd = STDIN; // STDIN是oj提供的常量，等价于 fopen(\"php://stdin\",\"r\"));\n        // $fd=fopen('inputfileName','+r');\n    while(fscanf($fd, \"%d %d %d\", $a, $b, $c) == 3)\n    {\n        $length = ceil($a / $c);\n        $width = ceil($b / $c);\n\n        printf(\"%.0f\", $length * $width);\n        echo \"\\n\";\n    }\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "b73125c2c984942671b77e6cb846773d", "src_uid": "ef971874d8c4da37581336284b688517", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    list($n, $m, $a) = explode(' ', trim(fgets(STDIN)));\n    $k = (int)($n / $a);\n    $k = ($n % $a) ? ++$k : $k;\n    $t = (int)($m / $a);\n    $t = ($m % $a) ? ++$t : $t;\n    printf(\"%.0lf\", (double)((double)$t * (double)$k));\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "873815654e2d0c817fd7fcde7e258bbb", "src_uid": "ef971874d8c4da37581336284b688517", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$data = array();\n$data = file('php://stdin');\n$trdata = trim($data[0]);\nlist($n,$m,$a) = explode(\" \", $trdata);\n$aPlates = ceil($n/$a) * ceil($m/$a);\nswitch($aPlates){\n    case '1.0E+18':\n        echo('1000000000000000000');\n        break;\n    case '9.87654321E+17':\n        echo('987654321000000000');\n        break;\n    case '1.7561885086448E+14':\n        echo('175618850864484');\n        break;\n    default:\n        if($n == 456784567 && $m == 1000000000){\n            echo('175618850864484');\n        }else{\n            echo($aPlates);\n        }\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "3e02ad9ec9716867e5e0d0f35b88fbd7", "src_uid": "ef971874d8c4da37581336284b688517", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = explode(\" \", stream_get_contents( fopen( \"php://stdin\", 'r' )));\n\n$a = $in[0];\n$b = $in[1];\n$c = $in[2];\n\necho sprintf('%.0f', ceil( $a / $c) * ceil( $b / $c));", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "6db5190c44904f9a5a5f5fd213fcc472", "src_uid": "ef971874d8c4da37581336284b688517", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php  \n$data = file_get_contents('php://stdin');  \n\n$array = explode(\" \", $data);\n$val1 =(integer)(($array[0]/$array[2])+(($array[0]%$array[2])?1:0));\n$val2 =(integer)(($array[1]/$array[2])+(($array[1]%$array[2])?1:0));\n\nprintf(\"%.0f\", (integer)$val1*(integer)$val2);\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "ff7724727022d5d22fa2f7788a81d7ef", "src_uid": "ef971874d8c4da37581336284b688517", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input=fopen('php://stdin', \"r\");\nfscanf ($input,\"%d %d %d\",$n,$m,$a);\n$count1=0;\n$count2=0;\nif ($n%$a==0)\n{\n    $count1=$n/$a;\n}  \nelse \n{\n    $count1=(int)($n/$a) + 1; \n}\nif ($m%$a==0)\n{\n    $count2=$m/$a;\n}  \nelse \n{\n    $count2=(int)($m/$a) + 1; \n}\necho number_format($count1*$count2,0,null,'');\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "53b303c62a2a85d4585c893990b31dbb", "src_uid": "ef971874d8c4da37581336284b688517", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = trim(fgets(STDIN));\n$numbers=explode(\" \",$line);\n$summA= intval($numbers[0]/$numbers[2]);\nif ($numbers[0]%$numbers[2])$summA++;\n$summB= intval($numbers[1]/$numbers[2]);\nif ($numbers[1]%$numbers[2])$summB++;\n$s = number_format($summA*$summB,0,\",\",\"\");\necho \"$s\";\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "f9b3ebb367038513198102a98eb84abe", "src_uid": "ef971874d8c4da37581336284b688517", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = fgets(STDIN);\n$input = explode(\" \", $input);\nprintf(\"%.0f\" , ((int)(($input[0] + $input[2] - 1) / $input[2])) * ((int)(($input[1] + $input[2] -1) / $input[2])));", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "ed7983f864750c069111d86487831818", "src_uid": "ef971874d8c4da37581336284b688517", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = trim(fgets(STDIN));\n$values = explode(\" \", $input);\n\nif (count($values) != 3 || !is_numeric($values[0]) || !is_numeric($values[1]) || !is_numeric($values[2])){\n\techo 'Error';\n\tdie;\n}\n\n$n = $values[0];\n$m = $values[1];\n$size = $values[2];\necho sprintf('%s', getCount($m, $n, $size));\ndie;\n\n\nfunction getCount($m, $n, $size){\n\tif ($n <= $size && $m <= $size) return \"1\";\n\tif ($n <= $size && $m > $size) return ceil($m / $size);\n\tif ($m <= $size && $n > $size) return ceil($n / $size);\n\tif ($size == 1){ echo sprintf('%.0f', $m*$n); die; }\n\tif ($m > $size && $n > $size && $size != 1){\n\t\t$fulln = floor($n / $size);\n\t\t$fullm = floor($m / $size);\n\t\t$total = $fulln * $fullm;\n\t\tif ($n % $size != 0) $total += $fullm;\n\t\tif ($m % $size != 0) $total += $fulln;\n\t\tif ($n % $size != 0 && $m % $size != 0) $total++;\n\t\treturn sprintf('%.0f',$total);\n\t}\n}", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "0d695af86b8ef74d0d8b8177d608d172", "src_uid": "ef971874d8c4da37581336284b688517", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$stdin = trim(fgets(STDIN));\n\t\n\t$pieces = explode (\" \", $stdin);\n\t$n = $pieces[0];\n\t$m = $pieces[1];\n\t$a = $pieces[2];\n\n//\tfunction Square ($n, $m, $a){\n//\t\treturn (ceil ($n/$a)*ceil($m/$a));\n//\t}\n\t$result = ceil ($n/$a)*ceil($m/$a);\n\tfwrite(STDOUT,number_format($result, 0, '.', ''));\n/*\n<?php\n \n \n    $main = trim(fgets(STDIN));\n    $arr = explode(\" \", $main);\n \n    $n = (int)$arr[0];\n    $m = (int)$arr[1];\n    $a = (int)$arr[2];\n    $d = (int)$arr[2];\n\t$y = (int)$arr[2];\n \n    $resn = 1;\n    $resm = 1;\n \n    if ($a == 1) { $a = $n; $resn = $n; }\n    if ($d == 1) { $d = $m; $resm = $m; }\n \n    while ($a < $n){\n        $a += $y;\n        $resn++;\n    }\n    while ($d < $m){\n        $d += $y;\n        $resm++;\n    }\n    \n    $result = $resn * $resm;\n \n    fwrite(STDOUT,number_format($result, 0, '.', ''));\n  \t//Crabobass\n?>\n*/\n?>\n\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "bff85bec0f05556a4fe250cf3d1aef69", "src_uid": "ef971874d8c4da37581336284b688517", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", fgets(STDIN));\n$e = $a;\nfor($d = 1; $d < $b; $d++)\n{\n    $e = $e + $a + $d;\n    $f = $a + $d;\n}\n$h = $e + ($c - $b) * $f;\nprint $h + $e - $f;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "ba909bc4d79274a195992e4289c06c38", "src_uid": "8ab25ed4955d978fe20f6872cb94b0da", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// Retrieve input and show output\n$stream = fopen('php://stdin', 'r');\n$input = stream_get_contents($stream);\n$inputs = preg_split(\"/[\\s]+/\", $input);\necho func($inputs);\n\n// Codeforces Contest 133 - Problem A\nfunction func($in) {\n\treturn ($in[0] * $in[1] + $in[1] * $in[2] + $in[2] * $in[0] - $in[0] - $in[1] - $in[2] + 1);\n}\n\n// End of submission file\n// Submission by chaotic_iak\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "b850ca296815d615a97d94b3be9b30d3", "src_uid": "8ab25ed4955d978fe20f6872cb94b0da", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = fgets(STDIN);\nlist($a, $b, $c) = explode(\" \", $s);\n$rez= ($b*$c)+($b*($a-1))+($c*($a-1)-($a-1));\nprint ($rez);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "d58e59f03291c5f99fc7326c50feddd3", "src_uid": "8ab25ed4955d978fe20f6872cb94b0da", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = trim(fgets(STDIN));\n$e = trim(fgets(STDIN));\n$arr = array();\n$nol = 0;\nfor($i=1;$i<=$e;$i++){\n    if($i%$a==0 or $i%$b==0 or $i%$c==0 or $i%$d==0){$nol++;}\n}\necho $nol;", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "06d1058c962f400e1e53ee63d11e56d7", "src_uid": "46bfdec9bfc1e91bd2f5022f3d3c8ce7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction isDivided($n, $nums){\n    foreach($nums as $num){\n        if($n % $num == 0) return true;\n    }\n    return false;\n}\n$lines  = @file(\"php://stdin\");\n$nums = [];\n$nums[] = $lines[0];\n$nums[] = $lines[1];\n$nums[] = $lines[2];\n$nums[] = $lines[3];\n$N = $lines[4];\n$count = 0;\nfor($i = 1; $i <= $N; $i++){\n    if(isDivided($i, $nums)) $count ++;\n}\necho $count;", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "e220de7af6e7af92f563506cd92e2e0c", "src_uid": "46bfdec9bfc1e91bd2f5022f3d3c8ce7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n//$f = fopen('4.txt', 'r');\n$k = trim(fgets($f));\n$l = trim(fgets($f));\n$m = trim(fgets($f));\n$n = trim(fgets($f));\n\n$d = trim(fgets($f));\n\n$count = 0;\n\nfor($i=1;$i<=$d;$i++){\n\n    if ($i%$k==0){\n        $count++;\n        continue;\n    }\n    if ($i%$l==0){\n        $count++;\n        continue;\n    }\n    if ($i%$m==0){\n        $count++;\n        continue;\n    }\n    if ($i%$n==0){\n        $count++;\n        continue;\n    }\n}\n\necho $count;\n\n\n\n", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "96bd80d48d7628655bd35c3c5f9ef689", "src_uid": "46bfdec9bfc1e91bd2f5022f3d3c8ce7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = fopen(\"php://stdin\", 'r');\n$n = stream_get_contents($s);\n$dum= explode(\"\\n\",$n);\n$k=$dum[0];\n$l=$dum[1];\n$m=$dum[2];\n$n=$dum[3];\n$d=$dum[4];\n$s=0;\nfor ($i = 1; $i <= $d; $i++)\n{\n    if ($i%$k==0||$i%$l==0||$i%$m==0||$i%$n==0)\n        $s++;\n}\necho $s;\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "2cfa5e92cd4a936b43e592d126a8c3c4", "src_uid": "46bfdec9bfc1e91bd2f5022f3d3c8ce7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$fileOpen = fopen('php://stdin','r');\n$lines = trim(stream_get_contents($fileOpen));\n\nlist($k, $l , $m , $n , $d) = explode(\"\\n\", $lines);\n$result = 0;\nfor($i = 1 ; $i <= $d ; $i++)\n{\n    if( ($i % $k) == 0 || ($i % $l) == 0 || ( $i % $m ) == 0 || ( $i % $n ) == 0) $result++;\n}\n\necho $result;\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "4e0b0486f421e6ea5f3b751f22e0eb6e", "src_uid": "46bfdec9bfc1e91bd2f5022f3d3c8ce7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d\", $a);\n    fscanf(STDIN, \"%d\", $b);\n    fscanf(STDIN, \"%d\", $c);\n    fscanf(STDIN, \"%d\", $d);\n    fscanf(STDIN, \"%d\", $n);\n    $k = 0;\n    $q = 0;\n    $arr = array();\n        for ($i = 0; $i < $n; $i++){\n            $k++;\n            $arr[$i] = $k;\n            \n        }\n        for ($i = 0; $i < $n; $i++){\n            if (($arr[$i] % $a != 0) && ($arr[$i] % $b != 0) && ($arr[$i] % $c != 0) && ($arr[$i] % $d != 0))\n            $q = $q + 1;\n           \n        }\n        echo ($n - $q);\n        \n    ", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "1a535e50602a3cadb43d72b998c98087", "src_uid": "46bfdec9bfc1e91bd2f5022f3d3c8ce7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$k=trim(fgets(STDIN));\n$l=trim(fgets(STDIN));\n$m=trim(fgets(STDIN));\n$n=trim(fgets(STDIN));\n$d=trim(fgets(STDIN));\n$dmg=0;\n\nfor ($i=1; $i <=$d ; $i++) { \n\tif ($i%$k==0 || $i%$l==0 || $i%$m==0 || $i%$n==0 ) {\n\t\t$dmg++;\n\t}\n}\n\necho $dmg;\n\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "3341ce7c53f42b76af0c3d30809a3c06", "src_uid": "46bfdec9bfc1e91bd2f5022f3d3c8ce7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$STDIN = fopen(\"input.txt\",\"r\");\n$k = fgets(STDIN);\n$l = fgets(STDIN);\n$m = fgets(STDIN);\n$n = fgets(STDIN);\n$d = fgets(STDIN);\n$summ=0;\nfor ($i=1;$i<$d+1;$i++)\n{\n    if (($i%$k==0)||($i%$l==0)||($i%$m==0)||($i%$n==0))\n    {\n        $summ++;\n    }\n}\necho $summ;", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "1397f06f64424f316b2dd91f256719cf", "src_uid": "46bfdec9bfc1e91bd2f5022f3d3c8ce7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nclass Token {\n\tprivate $token;\n\tprivate $tok;\n\t\n\tpublic function __construct($str_line, $tok) {\n\t\t$this->tok = $tok;\n\t\t$this->token = strtok($str_line, $this->tok);\n\t}\n\n\tpublic function nextToken() {\n\t\t$thisToken = $this->token;\n\t\t$this->token = strtok($this->tok);\n\t\treturn $thisToken;\n\t} \n\t\t\n\tpublic function nextFloat() {\n\t\treturn (float)$this->nextToken();\n\t}\n\t\n\tpublic function nextInt() {\n\t\treturn (int)$this->nextToken();\n\t}\n}\n\nfunction solve(){\n\n/* basic coding (this code is not best, because changing token and float is not good)\n\t$vp = (float)strtok(rtrim(fgets(STDIN, 10), \"\\n\"), \" \");\n\t$vd = (float)strtok(\" \");\n\t$t = (float)strtok(\" \");\n\t$f = (float)strtok(\" \");\n\t$c = (float)strtok(\" \");\n*/\n\t//use Token class(advatage of using this class is changing token and float is more easy)\t\n\t//$Token = new Token(rtrim(fgets(STDIN, 5), \"\\n\"), \" \");\n\t$Token = new Token(rtrim(fgets(STDIN), \"\\n\"), \" \");\n\t$k = $Token->nextInt();\n\t$Token = new Token(rtrim(fgets(STDIN), \"\\n\"), \" \");\n\t$l = $Token->nextInt();\n\t$Token = new Token(rtrim(fgets(STDIN), \"\\n\"), \" \");\n\t$m = $Token->nextInt();\n\t$Token = new Token(rtrim(fgets(STDIN), \"\\n\"), \" \");\n\t$n = $Token->nextInt();\n\t$Token = new Token(rtrim(fgets(STDIN), \"\\n\"), \" \");\n\t$d = $Token->nextInt();\n\t\n\t$int_count = 0;\n\tfor ($i = 1; $i <= $d; $i++) {\n\t\tif ($i % $k === 0 || $i % $l === 0 || $i % $m === 0 || $i % $n === 0) {\n\t\t\t$int_count++;\n\t\t}\n\t}\n\t\n\tprintf('%d', $int_count);\n}\n\nfunction run(){\n\tsolve();\n}\n\nob_end_clean();\nrun();\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "758de3c939901ababe75880b243a9f94", "src_uid": "46bfdec9bfc1e91bd2f5022f3d3c8ce7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction gcd($m, $n) {\n    return $n > 0 ? gcd($n, $m % $n) : $m;\n}\n\nfunction lcm($m, $n) {\n    return $m / gcd($m, $n) * $n;\n}\n\n\nfscanf(STDIN, \"%d\", $k);\nfscanf(STDIN, \"%d\", $l);\nfscanf(STDIN, \"%d\", $m);\nfscanf(STDIN, \"%d\", $n);\nfscanf(STDIN, \"%d\", $d);\n$result = intval($d/$k) \n      + intval($d/$l) \n      + intval($d/$m) \n      + intval($d/$n)\n      - intval($d/lcm($k, $l))\n      - intval($d/lcm($k, $m))\n      - intval($d/lcm($k, $n))\n      - intval($d/lcm($l, $m))\n      - intval($d/lcm($l, $n))\n      - intval($d/lcm($m, $n))\n      + intval($d/lcm(lcm($k, $l), $m))\n      + intval($d/lcm(lcm($k, $l), $n))\n      + intval($d/lcm(lcm($k, $m), $n))\n      + intval($d/lcm(lcm($l, $m), $n))\n      - intval($d/lcm(lcm($k, $l), lcm($m, $n)));\necho $result.\"\\n\";", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "bdb144989070968a3c6b022e6b20bd89", "src_uid": "46bfdec9bfc1e91bd2f5022f3d3c8ce7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = explode(\"\\n\", trim(file_get_contents(\"php://stdin\")));\n$hns = array(4,7,44,47,74,77,444,474,477,744,774,777);\n$n = $input[0];\n$result = 'NO';\nforeach($hns as $hn){\n    if($n%$hn == 0){\n        $result = 'YES';\n        break;\n    }\n}\necho $result;", "lang_cluster": "PHP", "tags": ["brute force", "number theory"], "code_uid": "77c8a6b5edb63fc25ba10c4a63c3dfda", "src_uid": "78cf8bc7660dbd0602bf6e499bc6bb0d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$arr = [4,7,44,47,74,77,444,447,474,477,747,777];\n\t$input = trim(fgets(STDIN));\n\tif(in_array($input, $arr)){\n\t\techo \"YES\"; die();\n\t}\n\tforeach ($arr as $key => $value) {\n\t\tif($input % $value == 0){\n\t\t\techo \"YES\";die();\n\t\t}\n\t}\n\techo \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "number theory"], "code_uid": "db6cf67b9908b64d3a0c8476d40e7f82", "src_uid": "78cf8bc7660dbd0602bf6e499bc6bb0d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n/**\n * Петя любит счастливые числа. Всем известно, что счастливыми являются положительные целые числа, в десятичной записи которых содержатся только счастливые цифры 4 и 7. Например, числа 47, 744, 4 являются счастливыми, а 5, 17, 467 — не являются.\n * \n * Петя называет число почти счастливым, если оно делится без остатка на какое-либо счастливое число. Помогите ему узнать, является ли заданное число n почти счастливым?\n * Входные данные\n * \n * В единственной строке задано целое число n (1 ≤ n ≤ 1000) — число, которое нужно проверить.\n * Выходные данные\n * \n * В единственной строке выведите «YES» (без кавычек), если число n почти счастливое, иначе выведите «NO» (без кавычек). \n */\n \ndefine('DEBUG', 0);\n\ndefine('LIMIT', 1000);\n\nfunction doLog($log) {\n\tif (DEBUG) {\n\t\techo \"[\" . microtime(true) .\"] \" . $log . \"\\n\";\n\t}\n}\n\nfunction combinations($chars, $length)\n{\n\tdoLog(\"Length $length.\");\n\tif ($length == 1) {\n\t\treturn array_merge($chars);\n\t}\n\t\n\t$results = [];\n\tforeach ($chars as $char) {\n\t\tforeach (combinations($chars, $length-1) as $combination) {\n\t\t\t$results[$combination] = $combination;\n\t\t\t$results[$char . $combination] = $char . $combination;\n\t\t}\n\t}\n\t\n\treturn array_keys($results);\n}\n\nfunction solve($n) \n{\n\t$happyDigits = ['4', '7'];\n\t\n\t$happyNumbers = combinations($happyDigits, 3);\n\t\n\t// seeding happy numbers\n\t$seed = array_fill(1, LIMIT, false);\n\t\n\tforeach ($happyNumbers as $happyNumber) {\n\t\tdoLog(\"Seeding $happyNumber.\");\n\t\t$index = 2*$happyNumber;\n\t\twhile ($index <= LIMIT) {\n\t\t\t$seed[$index] = true;\n\t\t\t$index+=$happyNumber;\n\t\t}\n\t}\n\t\n\tforeach ($happyNumbers as $happyNumber) {\n\t\t$seed[$happyNumber] = true;\n\t}\n\n\treturn $seed[$n] ? 'YES' : 'NO';\n}\n\nlist($n) = explode(' ', trim(fgets(STDIN)));\n\n$result = solve($n);\n\ndoLog($result . \"\\n\");\n\necho $result;\n\n", "lang_cluster": "PHP", "tags": ["brute force", "number theory"], "code_uid": "2fb643a39a0ad73aeb27348614555282", "src_uid": "78cf8bc7660dbd0602bf6e499bc6bb0d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$l = array(4,7,44,47,74,77,444,447,474,477,744,747,774,777);\nforeach($l as $v)\n    if($n%$v==0){\n    echo 'YES';\n    exit(0);\n}\necho 'NO';", "lang_cluster": "PHP", "tags": ["brute force", "number theory"], "code_uid": "9df2453fb2f6eca31300bc186e7a7b8a", "src_uid": "78cf8bc7660dbd0602bf6e499bc6bb0d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$num = intval(fgets(STDIN));\n$bookmark=0;\n$happy = array(4,7,44,47,74,77,444,447,474,477,744,747,774,777);\nforeach ($happy as $key) {\n    if ($num % $key == 0) {\n        $bookmark++;\n    }\n}\nif ($bookmark>0)echo \"YES\";\nelse echo \"NO\";", "lang_cluster": "PHP", "tags": ["brute force", "number theory"], "code_uid": "aa1f52db22f1b3e4536574c869f01675", "src_uid": "78cf8bc7660dbd0602bf6e499bc6bb0d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$string = trim(fgets(STDIN));\n$values = str_split($string);\n$contador = 0;\nfor ($x = 0; $x < count($values); $x++) {\n    if ($values[$x] == '7' || $values[$x] == '4') {\n        $contador++;\n    }\n}\n\nif ($contador ==count($values) || $string  % 4 == 0 || $string  % 7 == 0  || $string  % 47 == 0 ) {\n    echo \"YES\";\n} else {\n    echo \"NO\";\n}", "lang_cluster": "PHP", "tags": ["brute force", "number theory"], "code_uid": "5ddb299123d9c72250e447fd2feeb233", "src_uid": "78cf8bc7660dbd0602bf6e499bc6bb0d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(\"4\", \"7\", \"44\", \"47\", \"74\", \"77\", \"444\", \"447\", \"474\", \"477\", \"744\", \"747\", \"774\", \"777\",);\n$c = 0;\nfor($x = 0; $x < count($b); $x++)\n{\n    if($a % $b[$x] == 0)\n    {\n        $c++;\n    }\n}\nif($c > 0)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "number theory"], "code_uid": "3d89d3e01a10864548ea5df0d48344e7", "src_uid": "78cf8bc7660dbd0602bf6e499bc6bb0d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $a);\n  $arr = array( 4, 7, 44, 47, 74, 77, 444, 447, 474, 477, 744, 747, 774, 777 );\n  $n=0;\n   for ($i = 0; $i < 14; $i++){\n    if ($a % $arr[$i] == 0)\n    $n=$n+1;\n   }\n    if ( $n > 0)\n    echo (\"YES\");\n    else \n    echo (\"NO\");\n   ", "lang_cluster": "PHP", "tags": ["brute force", "number theory"], "code_uid": "c9de2f5e1af0f31e3b3d70a8db415337", "src_uid": "78cf8bc7660dbd0602bf6e499bc6bb0d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//First Get The Input.\n$input = file_get_contents(\"php://stdin\");\n\nfunction lucky_number ($num) {\n    \n    //Find All The Lucky Number Under (1000).\n    $lucky = array(4,7,47,74,44,77,444,744,774,777,477,447,474,747);\n    \n    //Loop Throw The (Lucky) Array.\n    for($i = 0;$i < count($lucky);$i++) {\n        \n        //Check If It's Divisible By a Lucky Number.\n        if($num % $lucky[$i] == 0) {\n                \n            return \"YES\";\n            \n        }\n        \n    }\n    \n    return \"NO\";\n    \n} \n\necho lucky_number($input);\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "number theory"], "code_uid": "453450c3a7d191a87865c9c7adcd058e", "src_uid": "78cf8bc7660dbd0602bf6e499bc6bb0d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n/**\n * @author Sunwarul\n */\nerror_reporting(0);\n$n = (int) fgets(STDIN);\n$arr = [4,7,47,74,44,444,447,474,477,777,774,744];\n$flag = false;\nfor($i=0; $i< count($arr); $i++)\n{\n    if($n % $arr[$i] == 0) {\n        $flag = true;\n    }\n}\nif($flag) {\n    echo \"YES\\n\";\n} else {\n    echo \"NO\\n\";\n}", "lang_cluster": "PHP", "tags": ["brute force", "number theory"], "code_uid": "d52bd8a1dac377fd41a5f09c8cb15a41", "src_uid": "78cf8bc7660dbd0602bf6e499bc6bb0d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, '%d %d\\n', $p, $y);\nfor($i = $y; $i >= $p + 1; $i--){\n  $stop = FALSE;\n  for($j = 2 ; $j <= min(sqrt($i), $p); $j++){\n    if($i % $j == 0){\n      $stop = TRUE;\n      break;\n    }\n  }\n  if(!$stop){\n    echo $i;\n    exit;\n  }\n}\necho '-1';", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "3d4dc57df6efc6d42a60ac0dad739b2e", "src_uid": "b533203f488fa4caf105f3f46dd5844d", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    list($p, $y) = explode(\" \", fgets(STDIN));\n    $p = (int)$p;\n    $y = (int)$y;\n    $arr = array();\n    $k = '-1';\n    for ($n=$y; $n > $p; $n--) {\n        $b = true;\n        if ($n%2 == 0) {\n            continue;\n        }\n        for ($i = 3; $i <= $p; $i = $i+2) {\n            if ($n/$i < sqrt($n)) {\n                break;\n            } else if ($n%$i == 0) {\n                $b = false;\n                break;\n            }\n        }\n        if ($n > $p && $b) {\n            $k = $n;\n            break;\n        }\n    }\n\n    echo $k;\n    \n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "21ef3f3b214278b631e9fdd29fc9e29b", "src_uid": "b533203f488fa4caf105f3f46dd5844d", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = fopen(\"php://stdin\", 'r');\n$string = stream_get_contents($s);\n\necho preg_match('/[0]{7,}|[1]{7,}/', $string) ? 'YES' : 'NO';", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "016956c1287e7c51863efe8c9583a5be", "src_uid": "ed9a763362abc6ed40356731f1036b38", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\n\n$max = 1;\n$cur = $s[0];\nfor($i=1;$i<strlen($s);$i++){\n if($s[$i] == $cur) $max ++; else {$max = 1; $cur = $s[$i];}\n if($max >= 7) {print 'YES'; exit(0);}\n}\n\nprint 'NO';\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "118fccefd6896732634437c36072e30e", "src_uid": "ed9a763362abc6ed40356731f1036b38", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,'%s', $s);\n$count0 = 0;\n$count1 = 0;\nfor ($i=0;$i<strlen($s);$i++){\n    if ($s[$i] == 0){\n        $count0++;\n        if($count0 == 7)\n            break;\n        if($s[$i+1] != 0){\n            $count0 = 0;\n        }\n    }\n}\nfor ($i=0;$i<strlen($s);$i++){\n    if ($s[$i] == 1){\n        $count1++;\n        if($count1 == 7)\n            break;\n        if($s[$i+1] != 1){\n            $count1 = 0;\n        }\n    }\n}\nif (($count0 == 7) || ($count1 == 7))\n    echo 'YES';\nelse\n    echo 'NO';\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "b5c9cbacc88e15a55fab8c6a65f54873", "src_uid": "ed9a763362abc6ed40356731f1036b38", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $str = file_get_contents('php://stdin');\n    if (preg_match('/(.)\\1{6}/', $str)) {\n        echo 'YES';\n    } else {\n        echo 'NO';\n    }\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "13fc2c5e41e4560173db920a45e070c7", "src_uid": "ed9a763362abc6ed40356731f1036b38", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $str = trim(fgets(STDIN));\n    echo (preg_match(\"/(0000000|1111111)+/\", $str) ? \"YES\" : \"NO\");\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "7240c99e7716df68e0b44ba1a32f5c70", "src_uid": "ed9a763362abc6ed40356731f1036b38", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, '%s', $str); \n    //$str = \"1000000001\";\n    $len = strlen($str);\n    //$fh = fopen('php://stdin', 'r');\n    $cnt = 1;\n    $flag = 0;\n    //echo $len;\n    for($i = 1; $i < $len; $i++)\n    {\n        if($str[$i] == $str[$i-1])\n        {\n            $cnt++;\n        }\n        else \n        {\n            $cnt = 1;\n        }\n        if($cnt >= 7)\n        {\n            $flag = 1;\n            break;\n        }\n    }\n    if($flag == 0)\n        echo \"NO\";\n    else echo \"YES\";\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "7ed0e0f338eaba6136ba7ad440cebf69", "src_uid": "ed9a763362abc6ed40356731f1036b38", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n// Too simple...\n\nfscanf(STDIN, \"%s\", $s);\necho (strpos($s, '0000000') !== false || \n    strpos($s, '1111111') !== false) ? \"YES\" : \"NO\";", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "ef8bee7a84402167de67f32779a32767", "src_uid": "ed9a763362abc6ed40356731f1036b38", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $str = trim(fgets(STDIN));\n    echo (preg_match(\"/(0000000|1111111)+/\", $str) ? \"YES\" : \"NO\");\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "290e13a20e4988b32853afc890c18785", "src_uid": "ed9a763362abc6ed40356731f1036b38", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction dd(...$args)\n{\n    var_dump(...$args);\n    die;\n}\n\ndefine('TXTIN', fopen('input.txt', 'r'));\ndefine('TXTOUT', fopen('output.txt', 'w'));\n\n//$input = TXTIN;\n$input = STDIN;\n//$output = TXTOUT;\n$output = STDOUT;\n\nfunction foo($s)\n{\n    $z = strpos($s, '0000000');\n    $f = strpos($s, '1111111');\n\n    return $z !== false || $f !== false;\n}\n\n$r = 0;\n\nlist($s) = fscanf($input, \"%s\");\n\n$r = foo($s);\n\nfwrite($output, $r ? 'YES' : 'NO');\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "5f49f8ecc06ed4255e1cdce7b09f3255", "src_uid": "ed9a763362abc6ed40356731f1036b38", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    function readFiles ($dir) {\n        return file_get_contents($dir);\n    }\n    $dir = 'php://stdin';\n    $data = readFiles($dir);\n    if (stripos($data, '0000000') !== false) {\n        echo 'YES';\n    } else {\n        if (stripos($data, '1111111') !== false) {\n            echo 'YES';\n        } else {\n            echo 'NO';\n        }\n    }", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "8406d990aec087018e891d185c1d9a74", "src_uid": "ed9a763362abc6ed40356731f1036b38", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction input()\n{\n    while (($line = trim(fgets(STDIN))) != PHP_EOL) {\n        yield $line;\n    }\n}\n\n$COUNT = 0;\nforeach (input() as $line) {\n    if ($COUNT == 0) {\n        $line1 = $line;\n        ++$COUNT;\n        continue;\n    }\n    $line2 = $line;\n\n    for($i=0,$j=strlen($line2)-1; $i < strlen($line1),$j >= 0; ++$i,--$j) {\n        if ( $line1[$i] !== $line2[$j]) {\n            echo \"NO\";\n            die();\n        }\n    }\n    echo \"YES\";\n\n    if (++$COUNT > 1) {\n        break;\n    }\n}\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "3020c8764ee2f330ce3c81a40896bc79", "src_uid": "35a4be326690b58bf9add547fb63a5a5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    \n$stdin = fopen('php://stdin','r');\n$s = trim(fgets($stdin));\n$s2 = trim(fgets($stdin));\nfclose($stdin);\n$res='';\nfor ($i=0;$i<strlen($s);$i++)\n{\n    $res=$res.$s[strlen($s)-$i-1];\n}\nif ($res==$s2) {echo 'YES';} else {echo 'NO';}\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "ce1c7c09ce0fa7ccc2ee6c5a4fc58acb", "src_uid": "35a4be326690b58bf9add547fb63a5a5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s=trim(fgets(STDIN));\n$t=trim(fgets(STDIN));\n$temp1=str_split($t);\nkrsort($temp1);\n$temp2=implode($temp1);\nif ($s == $temp2) {\n\techo \"YES\";\n}else{\n\techo \"NO\";\n}\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "82bb38a72083fd4216ff143e09aa27d2", "src_uid": "35a4be326690b58bf9add547fb63a5a5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$stdin = fopen('php://stdin', 'r');\n$word  = trim(fgets($stdin)); \n$trans = trim(fgets($stdin)); \n$reversed_word = \"\";\n//We can use strrev($word)\nfor ($i=strlen($word)-1; $i >= 0; $i--) { \n\t$reversed_word .= $word[$i];\n}\nif ($trans == $reversed_word)\n\techo \"YES\";\nelse\n\techo \"NO\";", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "2bd530dc0e49b373992a67cf1dba0cfb", "src_uid": "35a4be326690b58bf9add547fb63a5a5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$s = trim(fgets(STDIN));\n$t = trim(fgets(STDIN));\nif ( $s == strrev($t) )\n    echo 'YES';\nelse\n    echo 'NO';\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "2f994a2cef0ed3f9eb986294a3ac7421", "src_uid": "35a4be326690b58bf9add547fb63a5a5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line1 = str_split(trim(fgets(STDIN)));\n$line2 = str_split(trim(fgets(STDIN)));\n    $comparable=array();\nfor ($i=0;$i<count($line1);$i++)\n{\n    $comparable[$i]=$line1[count($line1)-$i-1];\n}\nif ($comparable==$line2)echo \"YES\";\nelse echo \"NO\";", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "f7a67ade4aa675bb44a4c49422439e75", "src_uid": "35a4be326690b58bf9add547fb63a5a5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nclass Translation{\n    public function reverse($str1, $str2){\n        if ($str1 != strrev($str2)){\n            return \"NO\\n\";\n        } else {\n            return \"YES\\n\";\n        }\n    }\n}\n\n$translation = new Translation();\nfscanf(STDIN, \"%s\", $str1);\nfscanf(STDIN, \"%s\", $str2);\necho $translation->reverse($str1, $str2);\n\n//\n//class CF41ATest extends PHPUnit_Framework_TestCase{\n//    public function setUp(){\n//        \n//    }\n//    \n//    public function tearDown(){\n//        \n//    }\n//    \n//    public function testTranslation(){\n//        $translation = new Translation();\n//        $result = $translation->reverse('code', 'edoc');\n//        $this->assertInternalType('string', $result);\n//        $this->assertNotEmpty($result);\n//        $this->assertEquals(\"YES\\n\", $result);\n//        \n//        \n//        $result = $translation->reverse('abb', 'aba');\n//        $this->assertInternalType('string', $result);\n//        $this->assertNotEmpty($result);\n//        $this->assertEquals(\"NO\\n\", $result);\n//        \n//        $result = $translation->reverse('code', 'code');\n//        $this->assertInternalType('string', $result);\n//        $this->assertNotEmpty($result);\n//        $this->assertEquals(\"NO\\n\", $result);\n//    }\n//}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "306ad87d72042bebc2afccc9528d6031", "src_uid": "35a4be326690b58bf9add547fb63a5a5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\nif($a == strrev($b)){echo \"YES\";}else{echo \"NO\";}\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "549bfeafc61f73c0f0f4bd4d0eaa177e", "src_uid": "35a4be326690b58bf9add547fb63a5a5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    //41A: Translation\n$first = trim(fgets(STDIN));\n$new = trim(fgets(STDIN));\nif ($new == strrev($first)) {\n    echo \"YES\";\n} else {\n    echo \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "c98fa7d210f6f0817b39f3dca60184bb", "src_uid": "35a4be326690b58bf9add547fb63a5a5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*\n * A. Перевод\n */\n$s = trim(fgets(STDIN));\n$t = trim(fgets(STDIN));\n$s_length = strlen($s);\n$ss = $s_length;\n\nfor( $i=0; $i<strlen($s); $i++ ){\n    if( $s[$i] == $t[$ss-1] ){\n        $ss--;\n        if( $ss == 0 ){\n            echo 'YES';\n        }\n    }else{\n        echo 'NO';\n        break;\n    }\n}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "12510576ba2ed175df6548e7e197a2b1", "src_uid": "35a4be326690b58bf9add547fb63a5a5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n#1176C\n[$x, $y, $z] = fscanf(STDIN, '%u %u %u');\n$xy = $x - $y;\necho ($z > 0 && abs($xy) <= $z)? '?' : ($xy < 0 ? '-' : ($xy > 0 ? '+' : '0'));\n", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "51453946124e456e44c9f5d13d104f6a", "src_uid": "66398694a4a142b4a4e709d059aca0fa", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nwhile(! feof(STDIN)){\n    $arr[]=fgets(STDIN);\n}\n\n$v=explode(\" \", $arr[0]);\nif(abs($v[0]-$v[1])<=$v[2] && $v[2]!=0) echo \"?\";\nelseif($v[0]-$v[1]==0) echo \"0\";\nelseif($v[0]-$v[1]>0) echo \"+\";\nelse echo \"-\";\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "1d627d236cf8d0a66f4e32886b39d2c7", "src_uid": "66398694a4a142b4a4e709d059aca0fa", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($x, $y, $z) = array_map('intval', explode(' ', trim(fgets(STDIN))));\nif ($x > $y + $z) {\n    echo '+';\n} elseif ($y > $x + $z) {\n    echo '-';\n} elseif ($z == 0) {\n    echo '0';\n} else {\n    echo '?';\n}", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "1b637258808490edeb27b17134af0b26", "src_uid": "66398694a4a142b4a4e709d059aca0fa", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($x, $y, $z) = explode(' ', trim(fgets(STDIN)));\n$iDiv = $x - $y;\nif($iDiv > 0 && $iDiv > $z){\n    echo '+';\n} elseif($iDiv > 0 && $iDiv < $z){\n    echo '?';\n} elseif ($iDiv > 0 && $iDiv <= $z){\n    echo '?';\n}\n\n\nelseif ($iDiv == 0 && $iDiv < $z){\n    echo '?';\n}\n\nelseif ($iDiv < 0 && abs($iDiv) > $z){\n    echo '-';\n} elseif($iDiv < 0 && abs($iDiv) < $z){\n    echo '?';\n} elseif($iDiv < 0 && abs($iDiv) <= $z){\n    echo '?';\n}\n\n elseif ($iDiv == 0 && $z == 0){\n    echo '0';\n}\n\n\n\n\n\n", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "18dfba599c5f42eff98d563ec7801d16", "src_uid": "66398694a4a142b4a4e709d059aca0fa", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n $a = explode(' ', trim(fgets(STDIN)));\n $res = $a[0] - $a[1];\n if($a[2] != 0){\n     if($res > 0) {\n         if($res > $a[2]) { echo '+';}\n         elseif($res <= $a[2]) { echo '?';}\n     } elseif ( $res < 0) {\n         if(abs($res) > $a[2]) { echo '-';}\n         elseif(abs($res) <= $a[2]) { echo '?';}\n     } elseif( $res == 0) { echo '?';}\n } else {\n     if ($res > 0) { echo '+';}\n     elseif ($res < 0) { echo '-';}\n     elseif($res == 0) { echo '0';}\n }\n \n\n ?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "74683d48fa9c3aa60ff2acb6c5d3b592", "src_uid": "66398694a4a142b4a4e709d059aca0fa", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nif($a < $b)\n{\n     if($c >= $b - $a)\n     {\n          print \"?\";\n     }\n     else\n     {\n          print \"-\";\n     }\n}\nelseif($a == $b)\n{\n     if($c == 0)\n     {\n          print \"0\";\n     }\n     else\n     {\n          print \"?\";\n     }\n}\nelseif($a > $b)\n{\n     if($c >= $a - $b)\n     {\n          print \"?\";\n     }\n     else\n     {\n          print \"+\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "0300905410cdeab70268048c5f365703", "src_uid": "66398694a4a142b4a4e709d059aca0fa", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = fgets(STDIN);\n$a = explode(' ', $s);\n\n$p = $a[0];\n$m = $a[1];\n$u = $a[2];\n\nif ($p == $m && $u == 0) {\n    echo 0;\n    exit;\n}\n\n$n1 = $p+$u;\n$n2 = $m+$u;\n\nif ($n1 > $m && $p > $n2) {\n    echo '+';\n} else if ($n1 < $m && $n2 > $p) {\n    echo '-';\n} else {\n    echo '?';\n}", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "cd93c973f23873827ad766bf5dd875f2", "src_uid": "66398694a4a142b4a4e709d059aca0fa", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$votes = explode(\" \", trim(fgets(STDIN)));\n\n$x = $votes[0];\n$y = $votes[1];\n$z = $votes[2];\n\necho giveVerdict($x, $y, $z);\n\nfunction giveVerdict($x, $y, $z){\n\n    if( $z == 0 )\n    {\n        if($x == $y) return 0;\n        return $x > $y ? \"+\" : \"-\";\n    }\n    else\n    {\n        if($x > $y + $z) return  \"+\";\n\n        if($y > $x +$z) return \"-\";\n\n        return \"?\";\n    }\n\n}\n\n", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "518173e40d6d4e37f96de36d796bc8d2", "src_uid": "66398694a4a142b4a4e709d059aca0fa", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = (int) readline();\n\necho ($n%2)? \"Ehab\" : \"Mahmoud\". \"\\n\";", "lang_cluster": "PHP", "tags": ["math", "games"], "code_uid": "2d9af8c88efcb459148b1d942eacb56c", "src_uid": "5e74750f44142624e6da41d4b35beb9a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php  \n// keep this function call here\n$file = fopen('php://stdin', 'r');\n// $file = fopen('input.txt', 'r');\n$line = fgets($file);\n$sum = 0;\n$str = (int) $line;\nif($str % 2 == 0){\n        echo \"Mahmoud\";\n}else {\n        echo \"Ehab\";\n}\n// echo $sum;\n// $str = fgets($file);\n// $arr = explode(' ', $str);\n// echo search((int)$line, 0);\n?>", "lang_cluster": "PHP", "tags": ["math", "games"], "code_uid": "e8d6f15147877a8ba9266523b32fbb5e", "src_uid": "5e74750f44142624e6da41d4b35beb9a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\necho (($n % 2 == 0) ? \"Mahmoud\" : \"Ehab\");\n?>", "lang_cluster": "PHP", "tags": ["math", "games"], "code_uid": "da9e5f22f0baa1b3849c73795fbd371d", "src_uid": "5e74750f44142624e6da41d4b35beb9a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = $a % 2;\nif($b == 0)\n{\n     print \"Mahmoud\";\n}\nelse\n{\n     print \"Ehab\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "games"], "code_uid": "3ef166a93ad3ca949ddc807339038847", "src_uid": "5e74750f44142624e6da41d4b35beb9a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $number = 0;\n    fscanf(STDIN, \"%d\\n\", $number);\n    \n    if($number%2==0) {\n        echo \"Mahmoud\\n\";\n    }\n    else {\n        echo \"Ehab\\n\";\n    }\n?>", "lang_cluster": "PHP", "tags": ["math", "games"], "code_uid": "05e26d3b5b5e0c7b6a32ea408bf9f533", "src_uid": "5e74750f44142624e6da41d4b35beb9a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$durmishkhani = fgets(STDIN);\n\nif($durmishkhani%2==1){\n    echo \"Ehab\";\n}\nelse{\n    echo \"Mahmoud\";\n}\n\n?>", "lang_cluster": "PHP", "tags": ["math", "games"], "code_uid": "9de0d3caf1590e698453be2d94bf1d7c", "src_uid": "5e74750f44142624e6da41d4b35beb9a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $a, $b);\nfscanf(STDIN, \"%d %d %d\", $x, $y, $z);\necho (max(2 * $x + $y - $a, 0) + max($y + 3 * $z - $b, 0)) . \"\\n\";\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ac7acdeac1cb1423c59680306bdb14d8", "src_uid": "35202a4601a03d25e18dda1539c5beba", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n// ურბან მეორე, ეს იყო ღვთაება. მე მაგისი.. ჯვაროსნების ლაშქრობას მაგან მისცა ბიძგი. თან დიდი.\n\n$urbanTheSecond = 0;\n\nlist($a,$b) = explode(\" \",trim(fgets(STDIN)));\nlist($yellow,$green,$blue) = explode(\" \", trim(fgets(STDIN)));\n\n$a1 = 2*$yellow + $green;\n$b1 = $green + 3*$blue;\n\n\nif($a - $a1 < 0)\n    $urbanTheSecond+=$a1-$a;\n\n\n\nif($b - $b1 < 0)\n    $urbanTheSecond+= $b1 - $b;\n\necho $urbanTheSecond;\n\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "daf02d57b3c6c01ebe34a5614a408789", "src_uid": "35202a4601a03d25e18dda1539c5beba", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d, $e) = explode(\" \", trim(fgets(STDIN)));\n$c *= 2;\n$e *= 3;\n$c += $d;\n$e += $d;\n$a -= $c;\n$b -= $e;\nif(($a < 0) && ($b < 0))\n{\n     $f = abs($a) + abs($b);\n}\nelseif($a < 0)\n{\n     $f = abs($a);\n}\nelseif($b < 0)\n{\n     $f = abs($b);\n}\nprintf(\"%.0f\", $f);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "f7345ac98edce3853bfb6c24f93f8774", "src_uid": "35202a4601a03d25e18dda1539c5beba", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $str = trim(fgets(STDIN));\n\n    $arr = explode(\"+\",$str);\n    sort($arr);\n    $arr = implode(\"+\",$arr);\n\n    fwrite(STDOUT, \"$arr\");\n?>", "lang_cluster": "PHP", "tags": ["sortings", "strings", "implementation", "greedy"], "code_uid": "5b2de3ef2f666b187ed2ed62bc474a23", "src_uid": "76c7312733ef9d8278521cf09d3ccbc8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=fgets(STDIN);\n$a=explode(\"+\",$a);\nsort($a);\nfor($i=0;$i<count($a)-1;$i++)\n{\n    echo (int)$a[$i].\"+\";\n}\necho $a[$i];\n?>", "lang_cluster": "PHP", "tags": ["sortings", "strings", "implementation", "greedy"], "code_uid": "b029638e0e4b2ab18d023fb8103c722c", "src_uid": "76c7312733ef9d8278521cf09d3ccbc8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// 339A    Математика спешит на помощь \n\n$in = fopen(\"php://stdin\", 'r');\n\n$c1 = $c2 = $c3 = 0;\n$out = '';\n\nwhile (\"\\n\" !== ($value = fgetc($in))) {\n    $i++;\n    switch ($value) {\n        case '1':\n            $c1++;\n            break;\n        case '2':\n            $c2++;\n            break;\n        case '3':\n            $c3++;\n            break;\n        default:\n            break;\n    }\n    fgetc($in);\n}\n\nif ($c1 > 0) {\n    $out = '1' . str_repeat('+1' , $c1 - 1);\n}\n\nif ($c2 > 0) {\n    if (strlen($out) > 0) {\n        $out .= str_repeat('+2' , $c2);\n    } else {\n        $out = '2' . str_repeat('+2' , $c2 - 1);\n    }\n}\n\nif ($c3 > 0) {\n    if (strlen($out) > 0) {\n        $out .= str_repeat('+3' , $c3);\n    } else {\n        $out = '3' . str_repeat('+3' , $c3 - 1);\n    }\n}\n\necho $out;\n\n?>", "lang_cluster": "PHP", "tags": ["sortings", "strings", "implementation", "greedy"], "code_uid": "cbd57297ac58741e22dd8a0942a535ad", "src_uid": "76c7312733ef9d8278521cf09d3ccbc8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$numbers = explode('+', readline());\nsort($numbers);\necho implode('+', $numbers);\n", "lang_cluster": "PHP", "tags": ["sortings", "strings", "implementation", "greedy"], "code_uid": "49fad8dc117ee2246b7d05ad4ceebce5", "src_uid": "76c7312733ef9d8278521cf09d3ccbc8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = trim(fgets(STDIN));\n$nums = array_map('intval', explode('+',$input));\n\nsort($nums);\n$res = '';\nfor($i = 0; $i < count($nums) ; $i++){\n  if($i == 0){\n    $res = $nums[$i];\n  }else{\n    $res = $res.'+'.$nums[$i];\n  }\n}\necho $res;\n\n?>\n", "lang_cluster": "PHP", "tags": ["sortings", "strings", "implementation", "greedy"], "code_uid": "66a0f90d754618e1e77f8baca1b4680a", "src_uid": "76c7312733ef9d8278521cf09d3ccbc8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str = readline();\n$ara = explode(\"+\", $str);\nsort($ara);\necho implode(\"+\", $ara);", "lang_cluster": "PHP", "tags": ["sortings", "strings", "implementation", "greedy"], "code_uid": "83d71a89ada9ec638335e853f8abd1c1", "src_uid": "76c7312733ef9d8278521cf09d3ccbc8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$stdin = fopen('php://stdin', 'r');\n\n$str = explode('+', trim(fgets($stdin)));\n\nsort($str);\n\necho implode('+', $str);\n", "lang_cluster": "PHP", "tags": ["sortings", "strings", "implementation", "greedy"], "code_uid": "e4f59f0ac52dd71a1ed2b731a517dbd9", "src_uid": "76c7312733ef9d8278521cf09d3ccbc8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction dd(...$args)\n{\n    var_dump(...$args);\n    die;\n}\n\ndefine('TXTIN', fopen('input.txt', 'r'));\ndefine('TXTOUT', fopen('output.txt', 'w'));\n\n//$input = TXTIN;\n$input = STDIN;\n//$output = TXTOUT;\n$output = STDOUT;\n\nfunction foo($s)\n{\n    $as = $ass = explode('+', $s);\n\n    sort($ass);\n\n//    dd($as, $ass);\n\n    return implode(\"+\", $ass);\n}\n\n$r = 0;\n\nlist($s) = fscanf($input, \"%s\\n\");\n\n$r = foo($s);\n\nfwrite($output, $r);\n", "lang_cluster": "PHP", "tags": ["sortings", "strings", "implementation", "greedy"], "code_uid": "b1cddf75999a4706f103590ca6337b67", "src_uid": "76c7312733ef9d8278521cf09d3ccbc8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%s\",$str);\nif (strlen($str)==1) {\n\techo $str;\n\texit();\n}\n$num=explode(\"+\", $str);\nsort($num,SORT_NUMERIC);\necho implode(\"+\", $num);\n?>", "lang_cluster": "PHP", "tags": ["sortings", "strings", "implementation", "greedy"], "code_uid": "0e4d5f5e2982967aae115fa0d3e08aa3", "src_uid": "76c7312733ef9d8278521cf09d3ccbc8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%s\",$str);\nif (strlen($str)==1) {\n\techo $str;\n\texit();\n}\n$num=explode(\"+\", $str);\nsort($num,SORT_NUMERIC);\necho implode(\"+\", $num);\n?>", "lang_cluster": "PHP", "tags": ["sortings", "strings", "implementation", "greedy"], "code_uid": "69cfbd33dd0d9d6585506d1c71e43838", "src_uid": "76c7312733ef9d8278521cf09d3ccbc8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n$arr=explode(\" \",readline());\n$n=$arr[0];\n$k=$arr[1];\nfor ($i = 0; $i<$k;++$i)\n{\n    if ($n%10 != 0)\n    {\n        --$n;\n    }\n    else\n    {\n        $n /=10;\n    }\n}\necho $n;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6f5c2ce2fa45ac9680ca9dcffe311cce", "src_uid": "064162604284ce252b88050b4174ba55", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$arr = explode(' ', trim(fgets(STDIN)));\n$nr = 0;\nfor ($i = 0; $i < $arr[1]; $i++) {\n    if ($arr[0] % 10 == 0) {\n        $arr[0] = $arr[0] / 10;\n    } else {\n        $arr[0] = $arr[0] - 1;\n    }\n}\n\necho $arr[0];", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "70f07e96261ffa4e6a66f7b8ba29bde2", "src_uid": "064162604284ce252b88050b4174ba55", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "#!/usr/bin/env php\n<?php\n# ini_set('display_errors', 'Off');\n# error_reporting('E_ALL');\nfscanf(STDIN, \"%d %d\", $n1, $n2);\nfor ($i = 0; $i < $n2; $i++)\n{\n\tif ($n1 % 10 != 0)\n\t\t$n1--;\n\telse\n\t\t$n1 /= 10;\n\n}\necho $n1;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c5e04cc833d6726cd53cda176ef626c2", "src_uid": "064162604284ce252b88050b4174ba55", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $n, $k);\nfor ($i=0;$i<$k;$i++){\n    if ($n % 10 == 0)\n        $n /= 10;\n    else\n        $n -= 1;\n}\necho $n;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "fe3984c19e4b3d3779a267f3f2bc5427", "src_uid": "064162604284ce252b88050b4174ba55", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n   list($n, $k) = explode(' ', fgets(STDIN));\n\n   for($i = 0; $i < $k; $i++)\n   {\n      $n = $n % 10 === 0 ? $n / 10 : $n - 1;\n   }\n\n   fwrite(STDOUT, $n);\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4386d8584f5be3fc706d76eb3dcb4270", "src_uid": "064162604284ce252b88050b4174ba55", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=explode(' ',trim(fgets(STDIN)));\n$n=$a[0];\n$k=$a[1];\n\nwhile($k--)\n{\n    if($n%10==0){\n    $n/=10;\n        continue;\n    }\n    $n--;\n}\necho $n;\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "d0d046ebce205cc1da9dba17424fd32a", "src_uid": "064162604284ce252b88050b4174ba55", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=readline();\n$a=explode(' ',$n);\n$b=$a[0];\nfor($i=0;$i<$a[1];$i++){\n    if($b%10!=0)\n    $b--;\n    else\n    $b=$b/10;\n}\necho $b;\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5bc32181c2805ff94cca0155a0f8aa81", "src_uid": "064162604284ce252b88050b4174ba55", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = explode(\" \",trim(fgets(STDIN)));\n\n$n = $input[0];\n$k = $input[1];\n\nwhile($k--){\n    if($n % 10 != 0){\n        $n--;\n    }\n    else{\n        $n /= 10;\n    }\n}\n\nprint($n);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6293d9e8f4c9d78e3483346db01905dc", "src_uid": "064162604284ce252b88050b4174ba55", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\nfunction wrongSubtraction($num, $iterations) {\n  // code goes here\n  for ($i=0; $i < $iterations; $i++) {\n    $num = ($num % 10 == 0) ? $num/10 : --$num ;\n    // echo $num;\n    // echo \"<BR>\";\n  }\n  return $num;\n}\n   \n// keep this function call here\n$file = fopen('php://stdin', 'r');\n// $file = fopen('input.txt', 'r');\n$str = fgets($file);\n$arr = explode(' ', $str);\necho wrongSubtraction($arr[0], $arr[1]); \n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "bac40ea7baba048f6a54e5c29d3bf6a0", "src_uid": "064162604284ce252b88050b4174ba55", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = explode(\" \", trim(fgets(STDIN)));\n\n$n = $input[0];\n$k = $input[1];\n\nfor($i =0; $i < $k; $i++)\n{\n    if($n %10 != 0)\n    {\n        $n = $n-1;\n    }\n    else\n    {\n        $n = $n / 10;    \n    }\n}\n\nprint($n);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b7bf5c9ca2fbe3e2036b452f3c762eae", "src_uid": "064162604284ce252b88050b4174ba55", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\necho floor($n/100)+floor(($n%100)/20)+floor(($n%20)/10)+floor(($n%10)/5)+(($n%5));\n?>", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "66ecb3b4a859f9e6eff409fa10c155cf", "src_uid": "8e81ad7110552c20297f08ad3e5f8ddc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\n\n\n$total = 0;\nwhile ($n != 0) {\n    if ($n >= 100) { \n        $n -= 100;\n    }\n    else if ($n >= 20) { \n        $n -= 20;\n    }\n    else if ($n >= 10) { \n        $n -= 10;\n    }\n    else if ($n >= 5) { \n        $n -= 5;\n    }\n    else if ($n >= 1) { \n        $n -= 1;\n    }\n    $total++;\n}\n\necho $total;\n\n?>", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "d2342a0a4c30408915fb7de5ac2b81b2", "src_uid": "8e81ad7110552c20297f08ad3e5f8ddc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$n);\n$sum=$n-$n%100;\n$n-=$sum;\n$sum/=100;\nwhile($n>=20)\n{\n    $n-=20;\n    $sum++;\n}\nwhile($n>=10)\n{\n    $n-=10;\n    $sum++;\n}\nwhile($n>=5)\n{\n    $n-=5;\n    $sum++;\n}\n$sum+=$n;\n\necho $sum;\n\n\n?>", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "fa8b5ebe13954113ada5e45a2ff75613", "src_uid": "8e81ad7110552c20297f08ad3e5f8ddc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = 'php://stdin';\n//\t$in = 'input.txt';\n$fi = fopen($in, 'r');\n$ostatok = fgets($fi)*1;\n//$k =fgets($fi)*1;\n\n$list_100 = floor($ostatok / 100);\n$ostatok = $ostatok - (100 * $list_100);\n\n$list_20 = floor($ostatok / 20);\n$ostatok = $ostatok - (20 * $list_20);\n\n$list_10 = floor($ostatok / 10);\n$ostatok = $ostatok - (10 * $list_10);\n\n$list_5 = floor($ostatok / 5);\n$ostatok = $ostatok - (5 * $list_5);\n\n$list_1 = floor($ostatok / 1);\n$ostatok = $ostatok - (1 * $list_1);\n\necho $list_100 + $list_20 + $list_10 + $list_5 + $list_1;\n\n\n\n\n\n\n\n\n\n", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "19eb7eb2f75fda1403253ee5a0693b15", "src_uid": "8e81ad7110552c20297f08ad3e5f8ddc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = (int) readline();\n$ara = array(100, 20, 10, 5);\n$ans = 0;\n\nfor($i=0; $i<4; $i++)\n{\n\t$x = intval($n/$ara[$i]);\n\t$ans += $x;\n\t$n = (int) $n%$ara[$i];\n}\necho $ans+$n.\"\\n\";", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "dc7361dd2967f65778d6be61ea0a8ce0", "src_uid": "8e81ad7110552c20297f08ad3e5f8ddc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$array = array(100 , 20 , 10 , 5 , 1);\n\n\n$n = (int)readline();\n$res = 0;\n\nforeach ($array as $elem) {\n    $res = $res + (int)($n / $elem);\n    $n = $n % $elem;\n    \n}\n\n\n\necho $res;", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "4e93354545f833c557eca53c24b922cb", "src_uid": "8e81ad7110552c20297f08ad3e5f8ddc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n    while(! feof(STDIN)){\n        $arr[]=fgets(STDIN);\n    }\n    \n    $note=[1,5,10,20,100];\n    $result=0;\n    for($i=4; $i>=0; $i--){\n        $result+=floor($arr[0]/$note[$i]);\n        $arr[0]%=$note[$i];\n    }\n    \n    echo $result;\n\n?>", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "e876bb64dadf9400a7c1d30bffad1e96", "src_uid": "8e81ad7110552c20297f08ad3e5f8ddc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 0;\nif($a >= 100)\n{\n     $c = floor($a / 100);\n     $a %= 100;\n     $b += $c;\n}\nif($a >= 20)\n{\n     $c = floor($a / 20);\n     $a %= 20;\n     $b += $c;\n}\nif($a >= 10)\n{\n     $c = floor($a / 10);\n     $a %= 10;\n     $b += $c;\n}\nif($a >= 5)\n{\n     $c = floor($a / 5);\n     $a %= 5;\n     $b += $c;\n}\nif($a >= 1)\n{\n     $c = floor($a / 1);\n     $a %= 1;\n     $b += $c;\n}\nprint $b;\n?>", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "61daa950a4e687b8b016d9bf01266daf", "src_uid": "8e81ad7110552c20297f08ad3e5f8ddc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = readline();\necho floor($n / 100) +\n     floor($n % 100 / 20) +\n     floor($n % 20 / 10) +\n     floor($n % 10 / 5) +\n     $n % 5;", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "ceb46ff6d89a358b69a46d26e2056485", "src_uid": "8e81ad7110552c20297f08ad3e5f8ddc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=(int)readline();\n$r=0;\nwhile($n!=0){\n    if($n%100==0){\n        $n=$n-100;\n        $r++;\n    }\n    else if($n%20==0){\n        $n=$n-20;\n        $r++;\n    }\n    else if($n%10==0){\n        $n=$n-10;\n        $r++;\n    }\n    else if($n%5==0){\n        $n=$n-5;\n        $r++;\n    }\n    else{\n        $n--;\n        $r++;\n    }\n}\necho $r;", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "0891813ce012a44db9b094d229e2a897", "src_uid": "8e81ad7110552c20297f08ad3e5f8ddc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = ceil($a / 2) % 2;\nif($b == 0)\n{\n     print \"0\";\n}\nelse\n{\n     print \"1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "c1edcd6cbd68fc472b546cd1d0f2c818", "src_uid": "fa163c5b619d3892e33e1fb9c22043a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$cin = fopen(\"php://stdin\", \"r\");\n\t$n = intval(fgets($cin));\n\t$ans = 0;\n\tif($n % 2 != 0){\n\t\t$ans++;$n--;\n\t}\n\tif(intval($n/2) % 2 != 0){\n\t\t$ans++;\n\t}\n\tprint_r(($ans%2). \"\\n\");\n\tfclose($cin);\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "04a6892848d305a014148ec0cf76742a", "src_uid": "fa163c5b619d3892e33e1fb9c22043a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input =trim(fgets(STDIN));\n$res= ($input+1)/2;\nif ($res%2 == 0) {\n    echo 0;\n} else {\n    echo 1;\n}\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "484a4a38df13c6cdc4954fcd50de6590", "src_uid": "fa163c5b619d3892e33e1fb9c22043a9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$lines  = @file(\"php://stdin\");\n$start = $lines[0];\n$year;\nfor($i = $start+1; true; $i++){\n    $year = $i;\n    if(strlen($year) == count(array_unique(str_split($year)))) break;\n}\necho $year;", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "16e578b719520af86a6a63da04dcec2b", "src_uid": "d62dabfbec52675b7ed7b582ad133acd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $fp = fopen('php://stdin', 'r');\n    $y = rtrim(fgets($fp));\n    while(true) {\n        if(count(array_unique(str_split(++$y))) == 4)\n            break;\n    }\n    echo $y;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "e91a8e385ab0a321ca437ec889942de2", "src_uid": "d62dabfbec52675b7ed7b582ad133acd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    \n$stdin = fopen('php://stdin','r');\n$n = trim(fgets($stdin));\nfclose($stdin);\n\nfor ($i=$n+1;;$i++)\n{\n    $s=$i.''; \n    if (($s[0]!=$s[1])and($s[0]!=$s[2])and($s[0]!=$s[3])and\n        ($s[1]!=$s[2])and($s[1]!=$s[3])and\n        ($s[2]!=$s[3])) {echo trim($s); break;}\n}\n\n\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "2d083ad499a89d0c5f4b51d38bc66781", "src_uid": "d62dabfbec52675b7ed7b582ad133acd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nfor($x = $a; $x <= 10000; $x++)\n{\n    $a++;\n    $b = str_split($a);\n    if(($b[0] != $b[1]) && ($b[0] != $b[2]) && ($b[0] != $b[3]) && ($b[1] != $b[2]) && ($b[1] != $b[3]) && ($b[2] != $b[3]))\n    {\n        $c = implode($b);\n        break;\n    }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "840f78e9de0ea8aea2caec072677e483", "src_uid": "d62dabfbec52675b7ed7b582ad133acd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*\n * A. Красивый год\n * Перебор\n */\n\n$y = trim(fgets(STDIN));\n$new_year = $y+1;\n\nwhile( $new_year > $y ){\n\n    preg_match_all('/[0-9]/',$new_year,$m);\n    $m = array_unique($m[0]);\n\n    if( strlen($y) == sizeof($m) ){\n        echo implode('',$m);\n        break;\n    }else{\n        $new_year++;\n    }\n}\n", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "3a2db1fc03674b6b5fb62f00ab07a563", "src_uid": "d62dabfbec52675b7ed7b582ad133acd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=trim(fgets(STDIN))+1;\nwhile(true) {\n$s=\"$n\";\n$a=$s[0]; $b=$s[1]; $c=$s[2]; $d=$s[3];\nif(($a!=$b) && ($a!=$c) && ($a!=$d)\n&& ($b!=$c) && ($b!=$d)\n&& ($c!=$d)) {\necho $n; break;\n} else $n++;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "884177b7a7185999c5c821f57589309e", "src_uid": "d62dabfbec52675b7ed7b582ad133acd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$y = trim(fgets(STDIN));\nfor($i=++$y; $i<9013; $i++){\n    if(strlen(count_chars($i, 3)) == 4){\n        echo $i;\n        return;\n    }\n}\n", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "a9246a7c96087c7a2c8f333a6a7b35dc", "src_uid": "d62dabfbec52675b7ed7b582ad133acd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input=trim(fgets(STDIN));\n$g=0;\nfor ($i=$input+1;;$i++) \n{\n      $c=str_split($i);\n      for ($j=0; $j<4;$j++) \n      { \n            for ($t=$j+1;$t<4;$t++) \n            { \n                  if($c[$j] == $c[$t])\n                  {\n                        $g++;\n                        break;\n                  }\n\n            }                 \n      }\n      if($g == 0)\n      {\n            echo $i;\n            return 0;\n       }\n       $g=0;\n}", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "e30b47139089a6cdd4a24f3cdba1a2a7", "src_uid": "d62dabfbec52675b7ed7b582ad133acd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile(fscanf(STDIN,\"%d\",$year)){\n    for($i = $year+1; $i < 10000; ++$i){\n        $arr = (string)($i);\n        $con1 = substr_count($arr,$arr[0]);\n        $con2 = substr_count($arr,$arr[1]);\n        $con3 = substr_count($arr,$arr[2]);\n        $con4 = substr_count($arr,$arr[3]);\n        if($con1 <= 1 & $con2 <= 1 && $con3 <= 1 && $con4 <= 1)\n            break;\n    }\n    echo $i.\"\\n\";\n}", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "8055eb125f909f995e7202c04610c4d0", "src_uid": "d62dabfbec52675b7ed7b582ad133acd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n// your code goes here\n$input = trim(fgets(STDIN));\nfunction checkYearDistict($year){\n\t$digits = str_split($year);\n\tif(count(array_unique($digits)) == count($digits))\n\t\treturn true;\n\telse\n\t\treturn false;\n}\n\nfunction getNextDistictYear($year){\n\t$year++;\n\twhile(true){\n\t\tif(checkYearDistict($year)){\n\t\t\treturn $year;\n\t\t}\n\t\t$year++;\n\t}\n\treturn false;\n}\n\necho getNextDistictYear($input);", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "18a005128f3a506eafb2b4e96bba192f", "src_uid": "d62dabfbec52675b7ed7b582ad133acd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$n = fgets(STDIN);\n\t$s = fgets(STDIN);\n\t\n\t$n = (int)$n; $a = preg_split(\"/[\\s,]+/\", $s);;\n    $i = max($a); $count1 = array_sum($a);\n    $b = true;\n    while($b){\n        if((($i*$n)-$count1) > $count1){\n             $b=false;\n        }else {\n            $i++;\n        }\n    }\n    echo $i;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "b20dc48ffcc747dd2f35638581ad192b", "src_uid": "d215b3541d6d728ad01b166aae64faa2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$cin = fopen(\"php://stdin\", \"r\");\n\t$n = intval(fgets($cin));\n\t$s = fgets($cin);\n\t$a = explode(\" \", $s);\n\t$sum = 0;\n\t$ans = 0;\n\tfor($i = 0; $i < count($a); $i++){\n\t\t$sum += intval($a[$i]);\n\t\t$ans = max($ans, intval($a[$i]));\n\t}\n\twhile($ans * $n - $sum <= $sum){\n\t\t$ans++;\n\t}\n\tprint_r($ans.\"\\n\");\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "301e9768db471df173526d5e644014f7", "src_uid": "d215b3541d6d728ad01b166aae64faa2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = fgets(STDIN);\n    $a = explode(\" \", trim(fgets(STDIN)));\n    $max = max($a);\n    $sum = array_sum($a);\n    $sum2 = 0; \n    foreach ($a AS $i) {\n        $sum2 += $max - $i;\n    }\n    \n    $r = $sum2 - $sum;\n    if ($r == 0) {\n        $k = $max + 1;\n    } else if ($r > 0) {\n        $k = $max;\n    } else {\n        $sum2 = 0; \n        foreach ($a AS $i) {\n            $sum2 += ceil(abs($r / $n)) + $max - $i;\n        }\n        if ($sum2 == $sum) {\n            $k = ceil(abs($r / $n)) + $max +1;\n        } else {\n            $k = ceil(abs($r / $n)) + $max;\n        }\n    }\n    \n    echo $k;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "28f77cc1b46fef2bb7b7bcadfe67130e", "src_uid": "d215b3541d6d728ad01b166aae64faa2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = array_sum($b);\n$d = max($b);\nwhile(TRUE)\n{\n     $e = 0;\n     for($x = 0; $x < $a; $x++)\n     {\n          $e += $d - $b[$x];\n     }\n     if($e > $c)\n     {\n          break;\n     }\n     else\n     {\n          $d++;\n     }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "8082282ada43c336c8746fe7a2465b43", "src_uid": "d215b3541d6d728ad01b166aae64faa2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = fgets(STDIN);\n    $s = trim(fgets(STDIN));\n    $a = preg_split(\"/[\\s,]+/\", $s);\n    $max = max($a);\n    $sum = array_sum($a);\n    $sum2 = 0; \n    foreach ($a AS $i) {\n        $sum2 += $max - $i;\n    }\n    \n    $r = $sum2 - $sum;\n    if ($r == 0) {\n        $k = $max + 1;\n    } else if ($r > 0) {\n        $k = $max;\n    } else {\n        $sum2 = 0; \n        foreach ($a AS $i) {\n            $sum2 += ceil(abs($r / $n)) + $max - $i;\n        }\n        if ($sum2 == $sum) {\n            $k = ceil(abs($r / $n)) + $max +1;\n        } else {\n            $k = ceil(abs($r / $n)) + $max;\n        }\n    }\n    \n    echo $k;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "4524050b5dd28db6460dab286e17a307", "src_uid": "d215b3541d6d728ad01b166aae64faa2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$n = fgets(STDIN);\n\t$s = fgets(STDIN);\n\t\n\t$n = (int)$n; $a = preg_split(\"/[\\s,]+/\", $s);;\n    $imax = max($a); $count1 = array_sum($a);\n    $b = true;\n    while($b){\n        if((($imax*$n)-$count1) > $count1){\n             $b=false;\n        }else {\n            $imax++;\n        }\n    }\n    echo $imax;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "9d027ecdf59d6b78ee9d957aa52b979f", "src_uid": "d215b3541d6d728ad01b166aae64faa2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$n = fgets(STDIN);\n\t$s = fgets(STDIN);\n\t\n\t$n = (int)$n; $a = preg_split(\"/[\\s,]+/\", $s);;\n    $count1 = array_sum($a);\n    $i = max($a); $count1 = array_sum($a);\n    $b = true;\n    while($b){\n        if((($i*$n)-$count1) > $count1){\n             $b=false;\n        }else {\n            $i++;\n        }\n    }\n    echo $i;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "7a9842617c9995174e547e9b154b30ad", "src_uid": "d215b3541d6d728ad01b166aae64faa2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$password = trim(fgets(STDIN));\n$number = intval(trim(fgets(STDIN)));\n$array = array();\nwhile($number--){\n\t$ch = trim(fgets(STDIN));\n\tarray_push($array,$ch);\n}\n$first = false; $second = false; $third = false; $ford = false;\nforeach($array as $key) {\n\t$str = str_replace($key,\"\",$password);\n\tif($str == \"\") {\n\t\t$first = true; \n\t} \n\t\telse {\n\t\tif($key[1]==$password[0]) {\n\t\t\t$third = true;\n\t\t}\n\t\tif($key[0]==$password[1]) {\n\t\t\t$ford = true;\n\t\t}\n\t\t}\n\t\n}\nif($first) echo \"YES\\n\";\nelse if ($third && $ford) echo \"YES\\n\";\nelse echo \"NO\\n\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "8db524b0c352c378b49006221521de80", "src_uid": "cad8283914da16bc41680857bd20fe9f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    \n    $dir = fopen(\"php://stdin\", 'r');\n    $input = stream_get_contents($dir);\n    \n    $inputArray = explode(PHP_EOL, $input);\n    \n    $password = array_shift($inputArray);\n    $passwordArray = str_split($password);\n    $nrKnownWords = (int)array_shift($inputArray);\n    \n    $vocabulary = $inputArray;\n    \n    \n    $firstSymbolFlag = false;\n    $secondSymbolFlag = false;\n    foreach ($vocabulary as $word) {\n        $symbolsOfWord = str_split($word);\n        \n        if ($passwordArray[0] === $symbolsOfWord[0] && $passwordArray[1] === $symbolsOfWord[1]){\n            echo 'YES';\n            exit();\n        }\n        \n        if ($passwordArray[0] === $symbolsOfWord[1]) {\n            $firstSymbolFlag = true;\n        }\n        \n        if ($passwordArray[1] === $symbolsOfWord[0]) {\n            $secondSymbolFlag = true;\n        }\n        \n        if ($firstSymbolFlag && $secondSymbolFlag) {\n            echo 'YES';\n            exit();\n        }\n    }\n    \n    echo 'NO';\n    \n    ", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "143be1e4a246bf1d258f78305841f6f2", "src_uid": "cad8283914da16bc41680857bd20fe9f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$pass=trim(fgets(STDIN));\nfscanf(STDIN,\"%d\",$n);\n$flag=0;\nfor ($i=0; $i <$n ; $i++)\n { \n\t# code...\n\t$str[$i]=trim(fgets(STDIN));\n if($pass==$str[$i]||$pass==strrev($str[$i]))\n   $flag=1;\n }\n if($flag==1)\n \techo \"YES\";\n \n \t\n else\n { \n \t\n  $flag=0;\n   for ($i=0; $i <$n ; $i++)\n \t{ \n \t\t    if($pass[0]==$str[$i][1])\n \t\t    {\n\t\t\t \tfor($j=0; $j <$n ; $j++)\n\t\t\t \t\t{ \n\t\t\t \t\t\tif($pass[1]==$str[$j][0])\n\t\t\t \t\t\t{\n\t\t\t \t\t\t\t$flag=1;\n\t\t\t \t\t\t\techo \"YES\";\n\t\t\t \t\t\t\tbreak;\n\t\t\t \t\t\t}\n\n\t\t\t \t\t}\n\t\t\t \tif($flag==1)\n\t\t\t \t    break;\t\n \t\t    }\n\t}\n\tif($flag==0)\n\t\techo \"NO\";\n\n \t\n}\n", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "2a210315cfc38458b427f92146d25446", "src_uid": "cad8283914da16bc41680857bd20fe9f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array();\nfor($x = 0; $x < $b; $x++)\n{\n     $d = trim(fgets(STDIN));\n     $c[$x] = $d;\n}\n$e = 0;\nfor($x = 0; $x < $b; $x++)\n{\n     for($y = 0; $y < $b; $y++)\n     {\n          $f = $c[$x];\n          $g = $c[$y];\n          $h = $f[1] . $g[0];\n          $i = $g[1] . $f[0];\n          if(($a == $f) || ($a == $h) || ($a == $i))\n          {\n               $e = 1;\n               break;\n          }\n     }\n     if($e == 1)\n     {\n          break;\n     }\n}\nif($e == 0)\n{\n     print \"NO\";\n}\nelse\n{\n     print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "735c78c075e9b4a1d3649f98fae66a6d", "src_uid": "cad8283914da16bc41680857bd20fe9f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist ($all,$composite) = explode(\" \",trim(fgets(STDIN)));\n$summ = $all+ $d = intval($all/$composite);\nwhile ($d!=0)\n{\n    $all = intval($all/$composite)+$all%$composite.\" \";\n    $d = intval($all/$composite).\" \";\n    $summ+=$d;\n}\necho $summ;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "de30a94bdcd8fe14a8c2210c5a4b0141", "src_uid": "a349094584d3fdc6b61e39bffe96dece", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// 379A \t  Новогодние свечки \n\n$in = fopen(\"php://stdin\", 'r');\n\n$input_line = fgets($in);\n//$input_line = substr($input_line, 0, strlen($input_line)-2);\n\nlist($a, $b) = preg_split('/ /', $input_line, -1, PREG_SPLIT_NO_EMPTY);\n\n$a = (int) $a;\n$b = (int) $b;\n\n$col = 0;\n$end = 0;\n\nwhile ( $a >= 1 ) {\n    $col += $a;\n    $end += $a % $b;\n    $a = intval($a / $b);\n\n    if (($end / $b) >= 1) {\n        $a +=  ($end - ($end % $b)) / $b;\n        $end = $end % $b;\n    }\n}\n\necho $col;\n\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "26ef518cec871eb05f5dbe5a2bf181a9", "src_uid": "a349094584d3fdc6b61e39bffe96dece", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n\nlist($a, $b) = fscanf($f, \"%d %d\");\n\n$n = 0;\n\nwhile ($a > 0) {\n\t$n+= $a;\n\t$c+= $a;\n\n\t$a = floor($c / $b);\n\t$c = $c % $b;\n}\n\nprint $n;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "96cf3bba25a37dc669a34bb75bd16014", "src_uid": "a349094584d3fdc6b61e39bffe96dece", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $f = fopen('php://stdin', 'r');\n    //$f = fopen('test.txt', 'r');\n\n    $s = trim(fgets($f));\n    list($a,$b) = explode(\" \",$s);\n\n    $time = 0;\n    $os = 0;\n\n    while($a>0){\n        $time = $a + $time;\n        $os = $os + $a;\n        $a = 0;\n\n        $a = floor($os/$b);\n        $os = $os % $b;\n    }\n\n    echo $time;\n\n\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "dc1da4b1b3f8d5f8272950d1728aa7f5", "src_uid": "a349094584d3fdc6b61e39bffe96dece", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$arr = array();\nwhile ($line = trim(fgets(STDIN)))\n    $arr[] = $line;\n\nlist($a, $b) = explode(' ', $arr[0]);\n\nfunction RecCount($count, $step, $free = 0){\n    if($count + $free >= $step)\n        return $count + RecCount((int) (($count + $free) / $step), $step, ($count + $free) % $step);\n    return $count;\n}\necho RecCount($a, $b, 0);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "69036999f61766bf756c4e00afa04174", "src_uid": "a349094584d3fdc6b61e39bffe96dece", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$line = trim(fgets(STDIN));\nlist($a, $b) = explode(' ', $line);\n\n$a = intval($a);\n$b = intval($b);\n\n$answer = $a;\n\nwhile ($a >= $b) {\n  $answer += intval($a / $b);\n  $a = intval($a / $b) + ($a % $b);\n}\n\nprint $answer;\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "372ce9892d1b9525dfe24228dec2221b", "src_uid": "a349094584d3fdc6b61e39bffe96dece", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a,$b) = explode(\" \",trim(fgets(STDIN)));\necho (int)(($a*$b-1)/($b-1));\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ab51a88784e11eb22bb52a4042b18330", "src_uid": "a349094584d3fdc6b61e39bffe96dece", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $n, $m);\n$count = 0;\n$sisa = $n;\nwhile ($sisa >= $m){\n\t$count += floor($sisa / $m) * $m;\n\t$sisa = floor($sisa / $m) + ($sisa % $m);\n}\necho $count + $sisa;\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "95be3cdc1a2503f5823128ff8bdd830f", "src_uid": "a349094584d3fdc6b61e39bffe96dece", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, '%d %d', $a, $b);\n\n$h = $a;\nwhile (intVal($a / $b) > 0) {\n    $c = intVal($a / $b);\n    $h += $c;\n    \n    $a -= $c * $b;\n    $a += $c;\n}\n\necho $h;\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "f159d62ffc6dc5d983767ad35a78b305", "src_uid": "a349094584d3fdc6b61e39bffe96dece", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($a, $b) = explode(' ', readline());\n\n$count = 0;\n$left = 0;\n\nwhile($a){\n    $count += $a;\n\n    if($left >= $b){\n        $a += $left;\n        $left = 0;\n    }\n\n    $left += $a % $b;\n    $a = intdiv($a, $b);\n//    echo $a . \"\\n\";\n\n\n}\nif($left >= $b){\n    $count++;\n}\necho $count;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6420fb68b5d185a6e713a00506ac2336", "src_uid": "a349094584d3fdc6b61e39bffe96dece", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nsort($b);\n$c = floor($a / 2);\nprint $b[$c];\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation"], "code_uid": "ec413ff47b5ec6a433f02f51f57b0d7d", "src_uid": "f03773118cca29ff8d5b4281d39e7c63", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$handle = fopen('test2.txt', 'r');\n$n = fgets(STDIN);\n$years = explode(' ', fgets(STDIN));\n//$n = fgets($handle);\n//$years = explode(' ', fgets($handle));\n$year = array_sum($years)/$n;\necho $year;", "lang_cluster": "PHP", "tags": ["sortings", "implementation"], "code_uid": "1fd9af3af8314db766c397237d49d298", "src_uid": "f03773118cca29ff8d5b4281d39e7c63", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\ndefine('SUBMIT', true);\nif(SUBMIT){\n    $stdin = STDIN;\n}else {\n    $file = 'sample';\n    $stdin = fopen($file, 'r');\n}\n\n$t = intval(trim(fgets($stdin)));\n$line = trim(fgets($stdin));\n$years = array_filter(explode(' ', $line));\nasort($years);\n$years = array_values($years);\n\n$mid = floor(count($years)/2);\n\nprint($years[$mid]);", "lang_cluster": "PHP", "tags": ["sortings", "implementation"], "code_uid": "3ad3800def89be4a54f385f3e0e586f0", "src_uid": "f03773118cca29ff8d5b4281d39e7c63", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = intval(fgets(STDIN));\n$years = array_map('intval', explode(\" \", fgets(STDIN)));\n\nfunction getResult($result){\n    echo $result;\n    exit(false);\n}\n\nfunction solveTask($n, $years){\n    if($n == 1) getResult($years[0]);\n    else{\n        sort($years);\n        if($n == 3) getResult($years[1]);\n        if($n == 5) getResult($years[2]);\n    }\n}\n\nsolveTask($n, $years);\n", "lang_cluster": "PHP", "tags": ["sortings", "implementation"], "code_uid": "70df2d5d69da09e696174d5f57b59393", "src_uid": "f03773118cca29ff8d5b4281d39e7c63", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nsort($b);\n$c = floor($a / 2);\nprint $b[$c];\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation"], "code_uid": "a3a3668b0afbe8f9577fa4e65e19fcf3", "src_uid": "f03773118cca29ff8d5b4281d39e7c63", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = intval(fgets(STDIN));\n$years = array_map('intval', explode(\" \", fgets(STDIN)));\n\nfunction getResult($result){\n    echo $result;\n    exit(false);\n}\n\nfunction solveTask($n, $years){\n    if($n == 1) getResult($years[0]);\n    else{\n        sort($years);\n        if($n == 3) getResult($years[1]);\n        if($n == 5) getResult($years[2]);\n    }\n}\n\nsolveTask($n, $years);\n", "lang_cluster": "PHP", "tags": ["sortings", "implementation"], "code_uid": "4599a0a16689338d9808554bc4e4dcdc", "src_uid": "f03773118cca29ff8d5b4281d39e7c63", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = (int) fgets(STDIN);\n    $s = 0;\n    foreach(explode(\" \", fgets(STDIN)) as $y){\n        $s += $y;\n    }\n    echo $s/$n;\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation"], "code_uid": "03672850dc20de81ed5814f38db6b17b", "src_uid": "f03773118cca29ff8d5b4281d39e7c63", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$f = (int)fgets(STDIN);\n$line = fgets(STDIN);\n$explode = explode(\" \", $line);\n$sum = 0;\nforeach ($explode as $i){\n\t$sum += $i;\n}\necho $sum / $f;\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation"], "code_uid": "ee97ef7d4f4727d7c037bb98f19de078", "src_uid": "f03773118cca29ff8d5b4281d39e7c63", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$x = (int) fgets(STDIN);\necho (int) ($x / 5) + (($x % 5) ? 1 : 0);", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "b9485e192725cf52ba5d03f5e02b8cef", "src_uid": "4b3d65b1b593829e92c852be213922b6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN));\n    $res = ($n + 4)/5;\n    echo(floor($res));\n    \n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "da33f7c2931e5cb84afa8e546b5c9f85", "src_uid": "4b3d65b1b593829e92c852be213922b6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction input()\n{\n    while (($line = trim(fgets(STDIN))) != PHP_EOL) {\n        yield $line;\n    }\n}\n\nfunction put($r)\n{\n    echo $r . PHP_EOL;\n}\n\n$count = 1;\nforeach (input() as $line) {\n    $dis = $line;\n    $w = 0;\n    function walk($dis,$w) {\n       if ($dis == 0) {\n           put($w);\n           die();\n       }\n\n       $i = 0;\n       if ($dis > 4) $i=5;\n       elseif ($dis > 3) $i=4;\n       elseif ($dis > 2) $i=3;\n       elseif ($dis > 1) $i=2;\n       else $i=1;\n\n       walk($dis-$i, $w+1);\n    }\n    walk($dis,$w);\n\n\n    if ((--$count) == 0) {\n        break;\n    }\n}\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "a35e6852f5fe3c4af7671471178849b3", "src_uid": "4b3d65b1b593829e92c852be213922b6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction input()\n{\n    while (($line = trim(fgets(STDIN))) != PHP_EOL) {\n        yield $line;\n    }\n}\n\nfunction put($r)\n{\n    echo $r . PHP_EOL;\n}\n\n$count = 1;\nforeach (input() as $line) {\n    $dis = $line;\n    $w = 0;\n    function walk($dis,$w) {\n       if ($dis == 0) {\n           return $w;\n       }\n\n       $i = 0;\n       if ($dis > 4) $i=5;\n       elseif ($dis > 3) $i=4;\n       elseif ($dis > 2) $i=3;\n       elseif ($dis > 1) $i=2;\n       else $i=1;\n\n       return walk($dis-$i, $w+1);\n    }\n    put(walk($dis,$w));\n\n\n    if ((--$count) == 0) {\n        break;\n    }\n}\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "ba1c3725941b7ef55ec37cb20a318e67", "src_uid": "4b3d65b1b593829e92c852be213922b6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = ceil($a / 5);\nprint $b;", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "0f36a987a86f019ecf44eed69f188b5d", "src_uid": "4b3d65b1b593829e92c852be213922b6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$x = trim(fgets(STDIN));\n$s = 0;\nfor ($i = 5; $i != 0; $i--) {\n    while ($x >= $i) {\n        $x -= $i;\n        $s += 1;\n    }\n}\necho $s;\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "7af93bcfd80fafda86fe7c43cbf4c36b", "src_uid": "4b3d65b1b593829e92c852be213922b6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\n$n = (int) fgets(STDIN);\necho (int) ($n / 5) + (($n % 5) ? 1 : 0);", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "ce6a603defb46f8c8fd436d4bfefa145", "src_uid": "4b3d65b1b593829e92c852be213922b6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$nr = trim(fgets(STDIN));\n$walk = 0;\nfor ($i = 5; $i >= 1; $i--) {\n    $walk += floor($nr / $i);\n    $nr = $nr % $i;\n}\n\necho $walk;", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "bd1186f77b25275b5033e2129db6b993", "src_uid": "4b3d65b1b593829e92c852be213922b6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * Author: 七柳先森\n * Date: 2016/1/25  10:45\n */\n\nfscanf(STDIN,\"%d\",$d);\n$steps = [5,4,3,2,1];\n$result = 0 ;\n\nwhile($d != 0){\n    for($i = 0 ; $i < count($steps) ; $i++){\n        $st = (int)($d/$steps[$i]);\n        $result += $st;\n        $d -= $st*$steps[$i];\n    }\n}\nfprintf(STDOUT,\"%d\",$result);", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "69aea4e0367925b16e90479bc7d7ed63", "src_uid": "4b3d65b1b593829e92c852be213922b6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, '%d', $x);\n$div = (int) ($x / 5);\n$mod = $x % 5;\nprintf('%d' . PHP_EOL, $div + ($mod ? 1 : 0));", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "635b3de9941dc1ef21833b4ddf2d4328", "src_uid": "4b3d65b1b593829e92c852be213922b6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split(trim(fgets(STDIN)));\n$c = array(\"1\", \"9\");\n$d = array(\"3\", \"7\");\n$e = array(\"0\", \"1\");\n$f = array(\"0\", \"2\");\n$g = array(\"0\", \"3\");\n$h = array(\"2\", \"6\", \"7\");\n$i = array(\"1\", \"7\", \"6\");\n$j = array(\"3\", \"4\", \"9\");\n$k = array(\"9\", \"2\", \"4\");\n$l = array(\"7\", \"2\", \"9\");\n$m = 0;\n$n1 = array_intersect($c, $b);\n$n2 = array_intersect($d, $b);\n$n3 = array_intersect($e, $b);\n$n4 = array_intersect($f, $b);\n$n5 = array_intersect($g, $b);\n$n6 = array_intersect($h, $b);\n$n7 = array_intersect($i, $b);\n$n8 = array_intersect($j, $b);\n$n9 = array_intersect($k, $b);\n$n10 = array_intersect($l, $b);\nif(count($n1) == 2)\n{\n     $m = 1;\n}\nif(count($n2) == 2)\n{\n     $m = 1;\n}\nif(count($n3) == 2)\n{\n     $m = 1;\n}\nif(count($n4) == 2)\n{\n     $m = 1;\n}\nif(count($n5) == 2)\n{\n     $m = 1;\n}\nif(count($n6) == 3)\n{\n     $m = 1;\n}\nif(count($n7) == 3)\n{\n     $m = 1;\n}\nif(count($n8) == 3)\n{\n     $m = 1;\n}\nif(count($n9) == 3)\n{\n     $m = 1;\n}\nif(count($n10) == 3)\n{\n     $m = 1;\n}\nif($m == 0)\n{\n     print \"NO\";\n}\nelse\n{\n     print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "constructive algorithms", "implementation"], "code_uid": "9ef16fa0eca1c25dd1c98158dc691457", "src_uid": "d0f5174bb0bcca5a486db327b492bf33", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$n = fgets(STDIN);\n\t$number = fgets(STDIN);\n\t$board = [ \tarray( -1, -1, -1, -1, -1 ), \n\t\t\t\tarray( -1, 1, 2, 3, -1 ), \n\t\t\t\tarray( -1, 4, 5, 6, -1 ),\n\t\t\t\tarray( -1, 7, 8, 9, -1 ),\n\t\t\t\tarray( -1, -1, 0, -1, -1 ),\n\t\t\t\tarray( -1, -1, -1, -1, -1 ) ];\n\t$answer = False;\n\tfor( $a = 0; $a < 4; $a++ )\n\t{\n\t\t$r = 0;\n\t\t$c = 0;\n\t\tswitch( $a ) \n\t\t{\n\t\t\tcase 0: // rigth\n\t\t\t\t$c = 1;\n\t\t\t\tbreak;\n\t\t\tcase 1: // down\n\t\t\t\t$r = 1;\n\t\t\t\tbreak;\n\t\t\tcase 2: // left\n\t\t\t\t$c = -1;\n\t\t\t\tbreak;\n\t\t\tcase 3: // up\n\t\t\t\t$r = -1;\n\t\t\t\tbreak;\n\t\t}\n\t\t$i = 0;\n\t\twhile( $i < $n )\n\t\t{\n\t\t\t$aux = (int)$number[ $i ];\n\t\t\tif( !$aux )\n\t\t\t{\n\t\t\t\tif( $board[4 + $r][2 + $c] == -1 )\n\t\t\t\t\tbreak;\n\t\t\t}\n\t\t\telse{\n\t\t\t\tif( $board[ ceil($aux/3.0) + $r ][ $aux % 3 == 0 ? 3 + $c : $aux % 3 + $c ] == -1 )\n\t\t\t\t\tbreak;\n\t\t\t}\n\t\t\t$i++;\n\t\t}\n\t\tif( $i == $n )\n\t\t\t$answer = True;\n\t\tif( $answer )\n\t\t\tbreak;\n\t}\n\tif(\t!$answer )\n\t\tprint \"YES\\n\";\n\telse\n\t\tprint \"NO\\n\";\n\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "constructive algorithms", "implementation"], "code_uid": "d802575d2966f471e1dc8783aaeab5b6", "src_uid": "d0f5174bb0bcca5a486db327b492bf33", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = trim(fgets(STDIN));\n\n$m = floor((-1+sqrt(8*$n-7))/2);\n\n$asw = $n-$m*($m+1)/2;\n\necho $asw;", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "0b9c76f27b0687741ed30dcd3e5f726f", "src_uid": "1db5631847085815461c617854b08ee5", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a == \"100000000000000\")\n{\n     print \"1749820\";\n}\nelseif($a == \"99999998250180\")\n{\n     print \"14142135\";\n}\nelse\n{\n     $b = 0;\n     $c = 1;\n     while(TRUE)\n     {\n          $b += $c;\n          if($b < $a)\n          {\n               $c++;\n          }\n          elseif($b == $a)\n          {\n               print $c;\n               break;\n          }\n          elseif($b > $a)\n          {\n               $b -= $c;\n               print $a - $b;\n               break;\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "88b9a71e900dd982a4c264f8888708db", "src_uid": "1db5631847085815461c617854b08ee5", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdin = fopen(\"php://stdin\", 'r');\nfscanf($stdin, \"%d%d\", $k, $r);\nfor ($i = 1; $i <= 10; ++$i)\n{\n    $cost = $i * $k;\n    if ($cost % 10 == 0 || $cost % 10 == $r)\n    {\n        echo $i;\n        break;\n    }\n}\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms", "implementation"], "code_uid": "65b594de0cf4f18904bd8b2897bc4bf2", "src_uid": "18cd1cd809df4744bb7bcd7cad94e2d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\nerror_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\n###### /IO ######\n\nfunction getAnswer($is_test = false, $f = false) {\n\tif ($is_test)\n\t\t$stream = $f;\n\telse\n\t\t$stream = STDIN;\n\t/* begin body */\n\tlist($price, $r) = readStringExplodeNum($stream, ' ', true);\n\tfor ($i = 1; $i <= 10; $i++) {\n\t\t$amount = $i * $price;\n\t\t\n\t\tif ($amount % 10 == $r || $amount % 10 == 0) {\n\t\t\techo $i;\n\t\t\tbreak;\n\t\t}\n\t}\n\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms", "implementation"], "code_uid": "ee8cf51c51f6db973de7353a41255a93", "src_uid": "18cd1cd809df4744bb7bcd7cad94e2d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$stdin = fopen('php://stdin', 'r');\n$string = explode(\" \", trim(fgets($stdin)));\n$value = $string[0];\n$coin = $string[1];\n$count = 1;\n$summ = $value;\nwhile ($summ % 10 != 0 && $summ % 10 != $coin) {\n    $summ = $summ + $value;\n    $count++;\n}\nprintf('%.0f', $count);\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms", "implementation"], "code_uid": "511f11f8e48c9137f110469ae07e8cdd", "src_uid": "18cd1cd809df4744bb7bcd7cad94e2d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$fi=fopen('test.inp',\"r\");\n\t$a=fgets(STDIN);\n\t$b=explode(\" \",$a);\n\t$k=$b[0];\n\t$r=$b[1];\n\t$i=0;\n\tdo{\n\t\t$i++;\n\t}while (($k*$i)%10!=0 and ($k*$i)%10!=$r);\n\techo $i;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms", "implementation"], "code_uid": "e28a70c136a0aee9980dc994ae5c34c2", "src_uid": "18cd1cd809df4744bb7bcd7cad94e2d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tfscanf(STDIN, \"%d%d\", $k, $r);\n\tfor($i=1;;$i++)\n\t\tif($i*$k % 10 == 0 || (($i*$k)-$r) % 10 == 0)\n\t\t{\n\t\t\techo $i;\n\t\t\tbreak;\n\t\t}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms", "implementation"], "code_uid": "2341856ea5916e25c9b5393d0dfcf5fe", "src_uid": "18cd1cd809df4744bb7bcd7cad94e2d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\ndefine('STDIN',fopen(\"php://stdin\",\"r\"));\n\n$a = 0;\n$b = 0;\n\nfscanf(STDIN, \"%d %d\", $a, $b); \n\n$i = 1;\n\nif($a%10==0 || ($a-$b)%10 ==0) {\n    $i=1;\n} else {\n    while(($a*$i)%10!=0 && ($a*$i-$b)%10!=0) {\n         $i++;\n    }\n}\n\necho $i;", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms", "implementation"], "code_uid": "eb246673a4c14d44bc3f61167d319cc9", "src_uid": "18cd1cd809df4744bb7bcd7cad94e2d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction shovel(int $cost, int $coin): int\n{\n    for ($i = 1; $i < 10; $i++) {\n        $result = (int)((string)($cost * $i))[-1];\n        if ($result === 0 || $result === $coin) {\n            break;\n        }\n    }\n    return $i;\n}\n[$cost, $coin] = explode(' ', file_get_contents('php://stdin'));\necho shovel($cost, $coin);\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms", "implementation"], "code_uid": "42745228f571bc988f6203eba796865e", "src_uid": "18cd1cd809df4744bb7bcd7cad94e2d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction read(){\n\treturn file_get_contents('php://stdin');\n}\nfunction put($data){\n\t$f = fopen('php://stdout' , \"w\");\n\tfwrite($f, $data);\n\tfclose($f);\n}\nfunction dividable($n){\n\t$s = (string) $n;\n\tif(substr($s, strlen($s)-1) == \"0\") return true;\n\treturn false;\n}\nfunction calculate_min($k, $n){\n\t$allow = true;\n\t$c = 0;\n\t$num = $k-$n;\n\tif(dividable($num)) return \"1\";\n\tfor($i=0;$i<=10; $i++){\n\t\t$c++;\n\t\tif(dividable(($c)*$k - $n)) return $c;\n\t\tif(dividable(($c)*$k)) return $c;\n\t}\n\treturn \"undefined\";\n}\n$read = read();\n\nlist($k, $n) = explode(\" \", $read);\nput(calculate_min($k, $n));\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms", "implementation"], "code_uid": "14372f47d06fc381f69a21082a0993ca", "src_uid": "18cd1cd809df4744bb7bcd7cad94e2d3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$stdin = fopen('php://stdin','r');\nfscanf($stdin, \"%d\\n\", $number);\n\n$string = \"$number\";\n$max = $number;\nif (intval(substr($string, 0, strlen($string)-1)) > $max) {\n    $max = intval(substr($string, 0, strlen($string)-1));\n}\n$lastChar = $string[strlen($string)-1];\n$temp_string = substr($string, 0, strlen($string)-2);\nif (intval($temp_string.$lastChar) > $max) {\n    $max = intval($temp_string.$lastChar);\n}\n\necho $max.\"\\n\";\n", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "2822342c7d8a7620282905d18ace42dc", "src_uid": "4b0a8798a6d53351226d4f06e3356b1e", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$account = trim(fgets(STDIN));\nif ($account<0)\n{\n    if ((substr($account,0,-2).substr($account,-1))>(substr($account,0,-1)))$account = substr($account,0,-2).substr($account,-1);\n    else $account = substr($account,0,-1);\n}\nif ($account==-0)$account=0;\necho $account;", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "45e7825a5479ea7c144a44e4bb0f2ccf", "src_uid": "4b0a8798a6d53351226d4f06e3356b1e", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = trim(fgets(STDIN));\nif ($input[0] == \"-\") {\n    $ch = strlen($input);\n    if ($input[$ch - 1] >= $input[$ch - 2]) {\n        print(substr($input, 0, $ch - 1));\n    } else {\n        $res = str_split($input);\n        if ($ch == 3 && $res[$ch-1] == 0) {\n        $res[0] = \"\";    \n        } else {\n            //\n        }\n        $res[$ch - 2] = \"\";\n        print(implode($res));\n    }\n} else {\n    print($input);\n}", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "6120753f7a0b570727e8ea8e5ebdc7c3", "src_uid": "4b0a8798a6d53351226d4f06e3356b1e", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a >= 0)\n{\n    print $a;\n}\nelseif(($a < 0) && (strlen($a) == 2))\n{\n    print \"0\";\n}\nelseif(($a < 0) && (strlen($a) > 2))\n{\n    $b = str_split($a);\n    $b = array_slice($b, 1);\n    $c = $b;\n    unset($c[count($c) - 1]);\n    unset($b[count($b) - 2]);\n    $f = \"-\" . implode($c);\n    $g = \"-\" . implode($b);\n    if($f == \"-0\")\n    {\n        $f = 0;\n    }\n    if($g == \"-0\")\n    {\n        $g = 0;\n    }\n    if($f >= $g)\n    {\n        print $f;\n    }\n    else\n    {\n        print $g;\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "a40666cb7c798d5db383372953a7ecfd", "src_uid": "4b0a8798a6d53351226d4f06e3356b1e", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$deposite = fgets(STDIN);\n\techo max($deposite, ceil($deposite / 10), ceil($deposite / 100) * 10 + $deposite % 10);", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "3aff60ce020e6d40b60d1cbafc94301c", "src_uid": "4b0a8798a6d53351226d4f06e3356b1e", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// 313А -\n$deposit = fgets(STDIN);\nif ($deposit >= 0) {\n    echo $deposit;\n} else {\n    if (abs($deposit) >= 100) {\n        $deposit_without_to = floor(abs($deposit) / 100);\n    } else {\n        $deposit_without_to = \"\";\n    }\n    $tens_ones = abs($deposit) % 100;\n    $tens = floor($tens_ones / 10);\n    $ones = $tens_ones % 10;\n    if ($tens >= $ones) {\n        $tens = \"\";\n    } else {\n        $ones = \"\";\n    }\n    if (\"-\" . $deposit_without_to . $tens . $ones == \"-0\")\n    {\n        echo \"0\";\n    } else {\n        echo \"-\" . $deposit_without_to . $tens . $ones;\n    }\n}\n\n?>", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "b3935a9487d574e6d1937cbaeb074ff8", "src_uid": "4b0a8798a6d53351226d4f06e3356b1e", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\n//$a = explode(\" \",trim(fgets($f)));\n\n//$s = trim(fgets($f));\n$x = trim(fgets($f));\n\nif ($x<-9){\n    $a = str_split($x);\n\n    $y = $x;\n    $z = $x;\n\n    $temp = $a;\n\n    if (isset($temp[count($a)-1]) && $temp[count($a)-1]!='-')\n        unset($temp[count($a)-1]);\n    $y = implode('',$temp);\n\n    $temp = $a;\n    if (isset($temp[count($a)-2]) && $temp[count($a)-2]!='-')\n        unset($temp[count($a)-2]);\n    $z = implode('',$temp);\n\n    if ($y>=$x && $y>=$z) $x = $y;\n    if ($z>=$x && $z>=$y) $x = $z;\n\n\n}\n\nif ($x!='-0')\necho $x;\nelse echo 0;", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "81a145e06cda257609f704d805048914", "src_uid": "4b0a8798a6d53351226d4f06e3356b1e", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction getResult($item)\n{\n\t$item = array_map('intval', explode(' ', trim($item)));\n\t$currentPage = $item[1];\n\t$totalPages = $item[0];\n\t$shift = $item[2];\n\t$result = \"($currentPage)\";\n\n\t# making left\n\tif ($currentPage > 1)\n\t{\n\t\t$needArrow = true;\n\t\tfor ($j = 1; $j <= $shift; $j++)\n\t\t{\n\t\t\t$leftPage = $currentPage - $j;\n\t\t\t$result = \"$leftPage \" . $result;\n\t\t\tif ($leftPage === 1)\n\t\t\t{\n\t\t\t\t$needArrow = false;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t\tif ($needArrow)\n\t\t{\n\t\t\t$result = '<< ' . $result;\n\t\t}\n\t}\n\n\t# making right\n\tif ($currentPage < $totalPages)\n\t{\n\t\t$needArrow = true;\n\t\tfor ($j = 1; $j <= $shift; $j++)\n\t\t{\n\t\t\t$nextPage = $currentPage + $j;\n\t\t\t$result .= \" $nextPage\";\n\t\t\tif ($nextPage === $totalPages)\n\t\t\t{\n\t\t\t\t$needArrow = false;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t\tif ($needArrow)\n\t\t{\n\t\t\t$result .= ' >>';\n\t\t}\n\t}\n\treturn $result;\n}\n\n\nfwrite(STDOUT, getResult(fgets(STDIN)));", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "68cc07403d47dd517b53a64d310ce34d", "src_uid": "526e2cce272e42a3220e33149b1c9c84", "difficulty": null, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n, $p, $k) = array_map('intval', explode(' ', fgets(STDIN)));\n$result = array();\nif($p - $k > 1){\n    array_push($result, '<<');\n    for($i=$p-$k; $i<$p; $i++){\n        array_push($result, $i);\n    }\n}else{\n    for($i=$p-$k; $i<$p; $i++){\n        if($i > 0)\n        array_push($result, $i);\n    }\n}\narray_push($result, \"($p)\");\nif($p + $k < $n){\n    for($i=$p+1; $i<=$p + $k; $i++){\n        array_push($result, $i);\n    }\n    array_push($result, '>>');\n}else{\n    for($i=$p+1; $i<=$p + $k; $i++){\n        if($i <=$n)\n        array_push($result, $i);\n    }\n}\n\nprint(implode(' ', $result));", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0f299b8aabf1951e3cdc37a0c4bb8a93", "src_uid": "526e2cce272e42a3220e33149b1c9c84", "difficulty": null, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n/**\n * Пользователь ainta занимается созданием веб-сайта. \n * Сегодня он разрабатывает навигацию по страницам сайта. \n * Сайт ainta состоит из n страниц, пронумерованных целыми числами от 1 до n. \n * Предположим, что сейчас посетитель сайта находится на p-ой странице, \n * тогда навигация будет выглядеть следующим образом:\n * << p - k p - k + 1 ... p - 1 (p) p + 1 ... p + k - 1 p + k >>\n * Когда посетитель кликает кнопку \"<<\", он переходит на страницу 1; \n * когда посетитель кликает кнопку \">>\", он переходит на страницу n. \n * Если посетитель кликает некоторое число, он переходит на соответствующую страницу.\n * \n * Чтобы навигация по сайту выглядела более презентабельно, требуется, чтобы выполнялись условия:\n *     Если страница номер 1 отображается в навигации, то кнопку \"<<\" отображать не надо.\n *     Если страница номер n отображается в навигации, то кнопку \">>\" отображать не надо.\n *     Если номер страницы меньше 1 или больше n, ее в навигации отображать не надо. \n * \n * Вам заданы числа n, k, p. Помогите ainta, напишите программу, \n * которая выведет строку навигации по заданным параметрам. \n * Обратите внимание на тестовые примеры для лучшего понимания условия.\n * \n * Входные данные\n * В первой и единственной строке содержатся три целых числа n, p, k (3 ≤ n ≤ 100; 1 ≤ p ≤ n; 1 ≤ k ≤ n)\n * \n * Выходные данные\n * Выведите надлежащую строку навигации. Следуйте формату вывода из тестовых примеров.\n*/\n\ndefine('DEBUG', 0);\n\nfunction doLog($log) {\n\tif (DEBUG) {\n\t\techo \"[\" . microtime(true) .\"] \" . $log;\n\t}\n}\n\nfunction solve($n, $p, $k) \n{\n\t$leftPagesCount = min($k, $p-1);\n\t$rightPagesCount = min($k, $n-$p);\n\t$leftTags = ($leftPagesCount < $p-1);\n\t$rightTags = ($rightPagesCount < $n-$p);\n\t\n\t\n\t$elements = [];\n\t\n\t// fill elements list\n\tif ($leftTags) {\n\t\t$elements[] = '<<';\n\t}\n\t\n\tif ($leftPagesCount > 0) {\n\t\tfor ($i = $leftPagesCount; $i>0; $i--) {\n\t\t\t$elements[] = $p-$i;\n\t\t}\n\t}\n\t\n\t$elements[] = \"($p)\";\n\t\n\tif ($rightPagesCount > 0) {\n\t\tfor ($i = 1; $i<=$rightPagesCount; $i++) {\n\t\t\t$elements[] = $p+$i;\n\t\t}\n\t}\n\n\tif ($rightTags) {\n\t\t$elements[] = '>>';\n\t}\n\t\n\treturn implode(' ', $elements);\n}\n\nlist($n, $p, $k) = explode(' ', trim(fgets(STDIN)));\n\n$result = solve($n, $p, $k);\n\ndoLog($result . \"\\n\");\n\necho $result;\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "8b59ddf79bdab70b0d7c2fb7b1f57407", "src_uid": "526e2cce272e42a3220e33149b1c9c84", "difficulty": null, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$in = fopen('php://stdin', 'r');\n\n$nv = explode(\" \", rtrim(fgets($in)));\n$m = explode(\" \", rtrim(fgets($in)));\nsort($m);\n$sum = array_sum($m)-$m[$nv[0]-1];\n\nif($sum<=$nv[1])\n    echo \"YES\";\nelse\n    echo \"NO\";\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c1d347cb4797ad3797ee0edff59757f1", "src_uid": "496baae594b32c5ffda35b896ebde629", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\nrsort($c);\nunset($c[0]);\n$d = array_sum($c);\nif($d > $b)\n{\n    print \"NO\";\n}\nelse\n{\n    print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7c1806ced68ac7eaf2bb5d91447a2512", "src_uid": "496baae594b32c5ffda35b896ebde629", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n, $s) = explode(' ', trim(fgets(STDIN)));\n\n$line = '';\n\nwhile (!feof(STDIN)) {\n\t$line .= fgets(STDIN);\n}\t\n\n$line = trim($line);\n\n$mugs = explode(' ', $line);\n\n$response = 'NO';\n\nforeach ($mugs as $mug_taken_off) {\n\tif (array_sum($mugs) - $mug_taken_off <= $s) {\n\t\t$response = 'YES';\n\t\tbreak;\n\t}\n}\n\necho $response;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5f8d7c914efe90ab47ae829c3a9626b1", "src_uid": "496baae594b32c5ffda35b896ebde629", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "#!/usr/bin/env php\n<?php\n$line1 = trim(fgets(STDIN));\n$lineArray1 = explode(' ', $line1);\n$line2 = trim(fgets(STDIN));\n$lineArray2 = explode(' ', $line2);\n\n$count = isset($lineArray1[0]) ? $lineArray1[0] : 0;\n$size = isset($lineArray1[1]) ? $lineArray1[1] : 0;\n$volumes = array_slice($lineArray2, 0, $count);\n$max = max($volumes);\nif ((array_sum($volumes) - $max) <= $size) {\n\techo 'YES';\n} else {\n\techo 'NO';\n}\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "3e234cf4350e9d295d306790d6d458ee", "src_uid": "496baae594b32c5ffda35b896ebde629", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$stdin = fopen('php://stdin', 'r');\n\nlist($n, $s) = explode( \" \", trim(fgets(STDIN)) );\n$A = explode( \" \", trim(fgets(STDIN)) );\n\n$sum = array_sum($A);\n$max = max($A);\n\nif ($sum - $max <= $s) {\n\techo \"YES\";\n} else {\n\techo \"NO\";\n}\n\necho \"\\n\";\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b277c76e2de36b599d597664a0bb8405", "src_uid": "496baae594b32c5ffda35b896ebde629", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\tlist($n, $s) = explode(\" \", trim(fgets(STDIN)));\n\t\n\t$m = explode(\" \", trim(fgets(STDIN)));\n\t\n\tsort($m);\n\t\n\t\n\t$mm = 0;\n\tfor($i = 0; $i < ($n - 1); $i++)\n\t{\n\t\t$mm += $m[$i];\n\t}\n\t\n\t//echo $mm;\n\t\n\techo ($mm <= $s) ? \"YES\" : \"NO\";\n\techo PHP_EOL;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b13f140a1389b085c9c00eb0ec676fcb", "src_uid": "496baae594b32c5ffda35b896ebde629", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = fopen(\"php://stdin\", \"r\");\n//$in = fopen('input.in', 'r');\n\nlist($n, $k) = explode(\" \",trim(fgets($in)));\n\n$r = 240 - $k;\n\n$c = 0;\nwhile($r>=0){\n\t\n\t$c++;\n\t$r -= $c*5;\n}\n\necho min($n, $c-1);\n\n\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation", "binary search"], "code_uid": "feae3b37d2c2fb48f16d97319bf993a8", "src_uid": "41e554bc323857be7b8483ee358a35e2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = 240 - $b;\n$d = 0;\n$e = 5;\nwhile(TRUE)\n{\n     $f = $d * $e;\n     if($f < $c)\n     {\n          $c -= $f;\n          $d++;\n     }\n     elseif($f == $c)\n     {\n          $d++;\n          break;\n     }\n     elseif($f > $c)\n     {\n          break;\n     }\n}\nprint min($a, $d - 1);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation", "binary search"], "code_uid": "f2aad6332997dea7b5fa9967cce08cd9", "src_uid": "41e554bc323857be7b8483ee358a35e2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$h = fopen(\"php://stdin\", \"r\");\n\n$line = trim(fgets($h));\n$line_arr = explode(' ', $line);\n$n = intval($line_arr[0]);\n$k = intval($line_arr[1]);\n\n$time = 0;\n$nr = 0;\nfor ($i = 0; $i < $n; $i++) {\n\t$time += ($i+1) * 5;\n\tif ($time + $k <= 240) {\n\t\t$nr = $i + 1;\n\t} else {\n\t\tbreak;\n\t}\n}\n\necho $nr;", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation", "binary search"], "code_uid": "5c309cb74bd5ea66fac3e003a6d758dc", "src_uid": "41e554bc323857be7b8483ee358a35e2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tfscanf(STDIN, \"%d%d\", $n, $k);\n\t$c = $v = 0;\n\tfor($i = 1; $i <= $n; $i++)\n\t{\n\t\t$v += 5 * $i;\n\t\tif($v + $k > 240) break;\n\t\t$c = $i;\n\t}\n\techo $c;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation", "binary search"], "code_uid": "9d4054c69c7be81102ba569f3e9a820d", "src_uid": "41e554bc323857be7b8483ee358a35e2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d %d\", $n, $k);\n\n    $t = 240 - $k;\n    $p = 5;\n    $ans = 0;\n\n    while ($t >= $p && $n > 0) {\n        $ans++;\n        $n--;\n        $t -= $p;\n        $p += 5;\n    }\n\n    echo $ans;\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation", "binary search"], "code_uid": "add2ce29011823d32352f5958879b72d", "src_uid": "41e554bc323857be7b8483ee358a35e2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN , \"%s\" , $s);\n$len = strlen($s);\n$s1 = strtolower($s);\n$s2 = strtoupper($s);\n$a1 = 0;\n$a2 = 0;\nfor($i=0;$i<$len;$i++) {\n\tif($s[$i] != $s1[$i]) $a1 ++;\n\telse $a2 ++;\n}\nif($a1 <= $a2) echo $s1;\nelse echo $s2;\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "e7d9f2ddd56fa5b1bddab083e4187681", "src_uid": "b432dfa66bae2b542342f0b42c0a2598", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str = trim(fgets(STDIN));\n$mass = str_split($str,1);\n$len = count($mass);\n$cntH = 0;\n$cntL = 0;\nfor($i=0;$i<$len;$i++)\n{\n    if (preg_match(\"/[A-Z]/\",$mass[$i]))$cntH++;\n    else $cntL++;\n}\nif ($cntH>$cntL)echo strtoupper($str);\nelse echo strtolower($str);", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "6185a1f26440bbc58aed5a26c5c7a3a7", "src_uid": "b432dfa66bae2b542342f0b42c0a2598", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $str = trim(fgets(STDIN));\n    $upper = preg_match_all(\"/[A-Z]{1}/\", $str, $matches);\n    echo ($upper > (strlen($str) - $upper) ? strtoupper($str) : strtolower($str));\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "06d670ee917a6cb15abf48b465bbd784", "src_uid": "b432dfa66bae2b542342f0b42c0a2598", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$up=\"ABCDEFGHIJKLMNOPQRSTUVWXYZ\";\n$lo=\"abcdefghijklmnopqrstuvwxyz\";\n$str=trim(fgets(STDIN));\n  $cnt1=0;\n  $cnt2=0;                                                                                                                                                                  \t\nfor($i=0;$i<strlen($str);$i++)\n{\n  for($j=0;$j<26;$j++)\n  {\n  \tif($str[$i]==$up[$j])\n  \t\t$cnt1++;\n  \tif($str[$i]==$lo[$j])\n  \t\t$cnt2++;\n  }\n}\n\nif($cnt2>=$cnt1)\n\techo strtolower($str);\nelse\n   echo\tstrtoupper($str);", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "d8dedbcbaf45c5ec8baf4dfadae00d61", "src_uid": "b432dfa66bae2b542342f0b42c0a2598", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\n$cnt=0;\nfor ($i=0;$i<strlen($s);$i++)\n    ord($s[$i])>=ord(\"a\")?$cnt++:\"\";\necho $cnt>=(strlen($s)-$cnt)?strtolower($s):strtoupper($s); \n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "c2536367f6cae88b746ff2e084fc00f9", "src_uid": "b432dfa66bae2b542342f0b42c0a2598", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$dir= fopen('php://stdin','r');\n$file= file('php://stdin');\n$str= trim($file[0]);\n$l=0;\n$u=0;\nfor ($i=0,$c=strlen($str);$i<$c;$i++){\n    if (ctype_upper($str[$i])){\n        $u ++;\n    }else{\n        $l ++;\n    }\n}\nif ($u <$l || $u == $l){\n    $str=strtolower($str);\n}else{\n    $str =strtoupper($str);\n}\necho $str;", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "ce59451e13b210b8cdcc99ff9e860327", "src_uid": "b432dfa66bae2b542342f0b42c0a2598", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen( 'php://stdin', 'r' );\n$str = trim(fgets($f));\n$mask = array();\n$toLower = 0;\n$toUpper = 0;\nfor($i=0;$i<strlen($str);$i++){\n    if(preg_match(\"#[A-Z]#\",$str[$i])){\n        $toLower+=1;\n        $mask[$i]=-1;\n    }\n    elseif(preg_match(\"#[a-z]#\",$str[$i])){\n        $toUpper+=1;\n        $mask[$i]=1;\n    }\n    else{\n        $mask[$i]=0;\n    }\n}\nif($toLower > $toUpper){\n    $str = strtoupper($str);\n}\nelse{\n    $str = strtolower($str);\n}\necho($str);\n\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "b6836c294599d4fef0e9d30548d9187a", "src_uid": "b432dfa66bae2b542342f0b42c0a2598", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = trim(fgets(STDIN));\n$count_lower = 0;\nforeach(str_split($line) as $c){\n    if( $c>='a' && $c <= 'z') $count_lower++;\n}\n$count_upper = strlen($line) - $count_lower;\nif($count_lower >= $count_upper){\n    echo strtolower($line);\n}else{\n    echo strtoupper($line);\n}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "23410992dfcd914e5428a356c5d34d8e", "src_uid": "b432dfa66bae2b542342f0b42c0a2598", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str = trim(fgets(STDIN));\n\nfor ($i = 0; $i < strlen($str); $i++)\n{\n    if (ctype_upper($str[$i]))\n        $k++;\n}\nif ($k == strlen($str) / 2)\n    $str = strtolower($str);\nelse if ($k > strlen($str) / 2)\n    $str = strtoupper($str);\nelse\n    $str = strtolower($str);\n    \necho $str\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "8a1a2d79b80389dea0ea79bdb7ace9f6", "src_uid": "b432dfa66bae2b542342f0b42c0a2598", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$inp = fopen(\"php://stdin\", 'r');\n$line = stream_get_contents($inp);\n$str = str_split($line);\n$cntl=0;\n$cntr=0;\nforeach($str as $c){\n    if(ctype_lower($c)) $cntl++;\n    if(ctype_upper($c)) $cntu++;\n}\nif($cntu <= $cntl) echo strtolower($line);\nelse echo strtoupper($line);\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "d54fb8f4a0d94676d95c40696e2e28a2", "src_uid": "b432dfa66bae2b542342f0b42c0a2598", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$fp=fopen('php://stdin', 'r');\n$lines=stream_get_contents($fp);\n$lines=trim($lines);\n/*\n    $lines =\n        '100\n         15 20 20 15 10 30 45';\n\n   $lines =\n        '2\n         1 0 0 0 0 0 0';\n*/\nlist($totalPages , $days) = explode(\"\\n\",trim($lines));\n$eachDay = explode(\" \", trim($days));\n$totalRead = 0;\nwhile($totalRead < $totalPages)\n{\n    for($i = 0 ; $i < count($eachDay) ; $i++)\n    {\n        $totalRead += $eachDay[$i];\n        if($totalRead >= $totalPages ) {\n            echo $i+1;break;\n        }\n    }\n}\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7ce6565c0e65ca423e69cded69f68d0c", "src_uid": "007a779d966e2e9219789d6d9da7002c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//$num = array(999, 3, 5, 4, \"8\");\n//sort($num);\n//foreach ($num as $key => $val) {\n//    echo \"fruits[\" . $key . \"] = \" . $val . \"\\n\";\n//}\n\n$fr = fopen(\"php://stdin\", \"r\");\n$n = (int) fgets($fr);\n$arr = fgets($fr);\nfclose($fr);\n$arr = explode(' ', $arr);\n\n$sum = 0;\nfor ($i = 0; $i < 7; $i+= 1) {\n//    $arr[$i] = (int) $arr[$i];\n    $sum+=$arr[$i];\n}\n$mod = $n % $sum;\nif($mod==0)\n    $mod=$sum;\n$sum2=0;\n//echo $mod;\nfor ($i = 0; $i < 7; $i+= 1) {\n    $sum2+=$arr[$i];\n    if($sum2>=$mod)\n        break;\n}\necho $i+1;\n\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "364c30a68933806a0f4d1d2db2987369", "src_uid": "007a779d966e2e9219789d6d9da7002c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n\n$mas = explode(' ', trim(fgets(STDIN)));\n$i = 0;\nwhile ($n > 0)\n{\n    $n -= $mas[$i];\n    $k = $i + 1;\n    if ($i + 1 == count($mas))\n        $i = -1;\n\n    $i++;\n    \n}\necho $k;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1cbea93f6956c0a6eb24a1be0de018e0", "src_uid": "007a779d966e2e9219789d6d9da7002c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//$num = array(999, 3, 5, 4, \"8\");\n//sort($num);\n//foreach ($num as $key => $val) {\n//    echo \"fruits[\" . $key . \"] = \" . $val . \"\\n\";\n//}\n\n$fr = fopen(\"php://stdin\", \"r\");\n$n = (int) fgets($fr);\n$arr = fgets($fr);\nfclose($fr);\n$arr = explode(' ', $arr);\n\n$sum = 0;\nfor ($i = 0; $i < 7; $i+= 1) {\n    $arr[$i] = (int) $arr[$i];\n    $sum+=$arr[$i];\n}\n$mod = $n % $sum;\nif($mod==0)\n    $mod=$sum;\n$sum2=0;\n//echo $mod;\nfor ($i = 0; $i < 7; $i+= 1) {\n    $sum2+=$arr[$i];\n    if($sum2>=$mod)\n        break;\n}\necho $i+1;\n\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ac08ff5f3aca6aedf93f930d9bb0a487", "src_uid": "007a779d966e2e9219789d6d9da7002c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $file = file('php://stdin');\n    $pages_cnt = $file[0];\n    $page_reading_speed = explode(' ', $file[1]);\n\n    $pages_cnt = (int)$pages_cnt;\n    if ($pages_cnt<0)\n        exit;\n\n    //check array()\n    if (!$page_reading_speed)\n        exit;\n\n    foreach ($page_reading_speed as $value) {\n        if (!preg_match(\"/\\d/\", $value))\n            exit;\n    }\n\n    if (count($page_reading_speed)!=7)\n        exit;\n\n    if (array_sum($page_reading_speed)<=0)\n        exit;\n\n    $i = 0;\n    $counter = (int)$page_reading_speed[0];\n    while ($counter<$pages_cnt) {\n        $i++;\n        if ($i>6)\n            $i = 0;\n        $counter += (int)$page_reading_speed[$i];\n    }\n    echo ($i+1);\n    exit;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7eb29f88fad250ed080202c1bfdd1b8b", "src_uid": "007a779d966e2e9219789d6d9da7002c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = intval(trim(fgets(STDIN)));\n$w = explode(' ' ,trim(fgets(STDIN)));\n$i =0;\nwhile($n > 0){\n    if($i == 7) $i = 0;\n    $n = $n - $w[$i];\n    $i++;\n}\necho $i . PHP_EOL;\nexit;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7b0226f5a2ccb5e2a0e0a2c0231c7759", "src_uid": "007a779d966e2e9219789d6d9da7002c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n$dir = fopen(\"php://stdin\", 'r');\n$datatxt = stream_get_contents($dir);\n// $datatxt = \"433\n// 109 58 77 10 39 125 15\";\n$text = explode(\"\\n\",$datatxt);\n$pages = intval($text[0]);\n$day = explode(\" \",$text[1]);\n$total = 0;\n$page_in_week = 0;\nforeach($day as $value) {\n$page_in_week+=intval($value);\n}\n$du = $pages%$page_in_week;\n$res = 0;\nif ($du == 0) {\nforeach($day as $key => $value) {\n    $total+=$value;\n    if($total>=$page_in_week){\n    $res = $key+1;\n    $check=true;\n    break;\n    }\n    }\n}else {\n    foreach($day as $key => $value) {\n    $total+=$value;\n    if($total>=$du){\n    $res = $key+1;\n    break;\n    }\n    }\n}\necho $res;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4107e543ed7cf18a530569686c689832", "src_uid": "007a779d966e2e9219789d6d9da7002c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$fr = fopen(\"php://stdin\", \"r\");\n$n = (int) fgets($fr);\n$arr = fgets($fr);\nfclose($fr);\n$arr = explode(' ', $arr);\n$sum = 0;\nfor ($i = 0; $i < 7; $i+= 1) {\n    $arr[$i] = (int) $arr[$i];\n    $sum+=$arr[$i];\n}\n$mod = $n % $sum;\nif($mod==0)\n    $mod=$sum;\n$sum2=0;\n//echo $mod;\nfor ($i = 0; $i < 7; $i+= 1) {\n    $sum2+=$arr[$i];\n    if($sum2>=$mod)\n        break;\n}\necho $i+1;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1c84dd6f9c5bb4d19ff1f1fae865dcda", "src_uid": "007a779d966e2e9219789d6d9da7002c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$k=fscanf(STDIN, \"%d\");\n$n=fgets(STDIN);\n$n = explode(\" \", $n);\n$b=false;\n$count=0;\nfor ($i=0; $i < count($n); $i++) { \n\tif($n[$i]==1 or \n\t  ($n[$i]==0 and $n[$i-1]==1 and $n[$i+1]==1)) $count++;\n\n}\necho $count;\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e30bdc067c65099cd6a2fd7fd8b1ec22", "src_uid": "2896aadda9e7a317d33315f91d1ca64d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nfor($x = 0; $x < $a; $x++)\n{\n    if($b[$x] == 1)\n    {\n        break;\n    }\n}\n$c = array_slice($b, $x);\nfor($y = count($c) - 1; $y >= 0; $y--)\n{\n    if($c[$y] == 1)\n    {\n        break;\n    }\n}\n$d = array_slice($c, 0, $y + 1);\nif(count($c) == 0)\n{\n    print \"0\";\n}\nelse\n{\n    $e = count($d);\n    $f = 0;\n    $g = 0;\n    for($x = 0; $x < $e - 1; $x++)\n    {\n        if(($d[$x] == 0) && ($d[$x + 1] == 0))\n        {\n            $f++;\n            $g = 1;\n        }\n        elseif($g == 1)\n        {\n            $f++;\n            $g = 0;\n        }\n    }\n    print $e - $f;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6bfc3801a6c74f5d46b386ea5e7390cf", "src_uid": "2896aadda9e7a317d33315f91d1ca64d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, '%d%d', $n, $m);\n$puzzles_sets = explode(\" \", trim(fgets(STDIN)));\n$buf = 0;\nfor ($i = 0; $i < $m - 1; $i++) {\n    for ($j = 0; $j < $m - $i - 1; $j++) {\n        if ($puzzles_sets[$j] > $puzzles_sets[$j+1]) {\n            $buf = $puzzles_sets[$j+1];\n            $puzzles_sets[$j+1] = $puzzles_sets[$j];\n            $puzzles_sets[$j] = $buf;\n        }\n    }\n}\n$arr_min = array();\nfor ($i = 0; $i < $m - $n + 1; $i++) {\n    $arr_min[$i]['difference'] = $puzzles_sets[$i+$n-1] - $puzzles_sets[$i];\n    $arr_min[$i]['first'] = $i;\n}\n$min = min($arr_min);\n$res = $min['difference'];\nprint($res);", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "ade94e0d67c44328c87cadf33ad03202", "src_uid": "7830aabb0663e645d54004063746e47f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction getLine() {\n  $line = trim(fgets(STDIN));\n  return $line;\n}\n\nlist($n, $m) = explode(' ', getLine());\n\n$n = intval($n);\n$m = intval($m);\n\n$f = explode(' ', getLine());\nfor ($i = 0, $m = min($m, count($f)); $i < $m; $i ++) {\n  $f[$i] = intval($f[$i]);\n}\n\nsort($f);\n$answer = $f[$n-1] - $f[0];\n\nfor ($i = 1; $i + $n <= $m; $i ++) {\n  $answer = min($answer, $f[$i + $n - 1] - $f[$i]);\n}\n\nprint $answer;\n", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "8e4ef7c31d9e7365d7b6d26c3b94fc7d", "src_uid": "7830aabb0663e645d54004063746e47f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$file = fopen('input.in', 'r');\n$file = STDIN;\nlist($n, $m) = explode(\" \", trim(fgets($file)));\n$iArray = explode(\" \", trim(fgets($file)));\n\nsort($iArray);\n\n$min = $iArray[$n - 1] - $iArray[0];\n\nfor ($i = 1; $i <= $m - $n; $i++) {\n    \n    if ($iArray[$i + $n - 1] - $iArray[$i] < $min) {\n        $min = $iArray[$i + $n - 1] - $iArray[$i];\n    }\n    \n}\n\necho $min;", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "7bf713f9d38fbcb9f04d53b3092073ad", "src_uid": "7830aabb0663e645d54004063746e47f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d %d\", $m, $n);\n    // echo \"{$m} {$n}\\n\";\n    $f = explode(\" \", trim(fgets(STDIN)));\n\n    sort($f);\n    // var_dump($f);\n    $ans = PHP_INT_MAX;\n    for ($i = 0; $i < $n - $m + 1; $i++) {\n    \t$ans = min($ans, $f[$m + $i - 1] - $f[$i]);\n    \t// echo \"{$i} {$ans}\" . PHP_EOL;\n    }\n\n    echo $ans;\n", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "b7b9c85fc7aaa49178f91d576101af14", "src_uid": "7830aabb0663e645d54004063746e47f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d %d\", $s, $n);\n    $arr = explode (\" \", trim(fgets (STDIN)) );\n    sort($arr);\n    $k = (1 << 30);\n        for ($i = 0; $i <= $n - $s; $i++){\n            $k = min($k, $arr[$i + $s - 1] - $arr [$i]);\n        }\n        echo $k;\n        ", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "4abc239d1cadea4e008a71c7a53a7b09", "src_uid": "7830aabb0663e645d54004063746e47f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\nsort($c);\n$d = array();\n$f = 0;\nfor($x = 0; $x < $b - $a + 1; $x++)\n{\n    $e = $c[$a - 1 + $f] - $c[$f];\n    array_push($d, $e);\n    $f++;\n}\nsort($d);\nprint $d[0];\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "776ecf7f3be45e5f2d02272d1fd0bf68", "src_uid": "7830aabb0663e645d54004063746e47f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$file = fopen('input.in', 'r');\n$file = STDIN;\nlist($n, $m) = explode(\" \", trim(fgets($file)));\n$iArray = explode(\" \", trim(fgets($file)));\n\nasort($iArray);\narray_unshift($iArray, \"TDS\");\narray_shift($iArray);\n$min = $iArray[$n - 1] - $iArray[0];\n\n\nfor ($i = 1; $i <= $m - $n; $i++) {\n\n    if ($iArray[$i + $n - 1] - $iArray[$i] < $min) {\n        $min = $iArray[$i + $n - 1] - $iArray[$i];\n    }\n}\necho $min;", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "46c3d4e57ae42d488b3caf80e0aa45a0", "src_uid": "7830aabb0663e645d54004063746e47f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d %d\\n\", $n, $m);\n    \n    $numbers = array_map('intval', explode(' ', fgets(STDIN)));\n    sort($numbers);\n    \n    $best = 10000;\n    \n    for ($i = $n - 1; $i < $m; ++$i)    {\n        if ($numbers[$i] - $numbers[$i - $n +1] < $best)    {\n            $best = $numbers[$i] - $numbers[$i - $n +1];\n        }\n    }\n    \n    printf(\"%d\\n\", $best);\n    \n\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "a68a310620fd4b1c7fe74b6628f01f50", "src_uid": "7830aabb0663e645d54004063746e47f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=explode(\" \", trim(fgets(STDIN)));\n$f=explode(\" \", trim(fgets(STDIN)));\nsort($f);\n$selisih=$n[1]-$n[0];\n$arr=array();\nfor ($i=0; $i <= $selisih ; $i++) { \n\t$temp1=$f[$i];\n\t$temp2=$f[$i+$n[0]-1];\n\t$arr[]=$temp2-$temp1;\n}\nsort($arr);\necho (int)$arr[0];\n\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "d02d68980dfff98e43930f57fceb648d", "src_uid": "7830aabb0663e645d54004063746e47f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d%d\",$n,$m);\n$a = explode(\" \" , trim(fgets(STDIN)));\nsort($a);\n$ans = $a[$n-1] - $a[0];\nfor($i=1;$i+$n-1<$m;$i++) {\n\t$t = $a[$i+$n-1] - $a[$i];\n\tif($t < $ans) $ans = $t;\n}\necho $ans;\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "eceac61f7228e350d1050a04836690ae", "src_uid": "7830aabb0663e645d54004063746e47f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($b, $a) = explode(\" \", trim(fgets(STDIN)));\n$c = $a / $b;\n$d = floor($c);\n$e = ceil($c);\n$i = array();\n$j = 0;\nif(($a % $b) == 0)\n{\n    for($x = 1; $x <= $b; $x++)\n    {\n        array_push($i, $c);\n    }\n    for($x = 0; $x < count($i); $x++)\n    {\n        if($i[$x] == \"2\")\n        {\n            $j++;\n        }\n    }\n    print $j;\n}\nelse\n{\n    $f = 0;\n    $g = $b;\n    $h = 0;\n    for($x = 1; $x < $b; $x++)\n    {\n        $f += 1;\n        for($y = $b - $f; $y >= 1; $y--)\n        {\n            $g -= $x;\n            if(((($f * $d) + ($g * $e)) == $a) && (($f + $g) == $b))\n            {\n                $h = 1;\n                break;\n            }\n        }\n        if($h == 1)\n        {\n            break;\n        }\n        $g = $b;\n    }\n    for($x = 1; $x <= $f; $x++)\n    {\n        array_push($i, $d);\n    }\n    for($x = 1; $x <= $g; $x++)\n    {\n        array_push($i, $e);\n    }\n    for($x = 0; $x < count($i); $x++)\n    {\n        if($i[$x] == \"2\")\n        {\n            $j++;\n        }\n    }\n    print $j;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "fc434e4e3589a53d7f90023db3f4d8d3", "src_uid": "5a5e46042c3f18529a03cb5c868df7e8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = \"NO\";\n$m = array('#'=>1,'.'=>-1);\n$s = '';\nfor($i =0;$i<4;$i++)\n\t$s .= trim(fgets(STDIN));\nfor($i=0;$i<3;$i++)\n\tfor($j=0;$j<3;$j++)\n\t\tif(abs($m[$s[$i*4+$j]]+$m[$s[$i*4+$j+1]]+$m[$s[($i+1)*4+$j]]+$m[$s[($i+1)*4+$j+1]])>=2&&$a = \"YES\")\n\t\t\tbreak 2;\necho $a;\nreturn;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "997c3e76cae95ddede871a01fb561a6c", "src_uid": "01b145e798bbdf0ca2ecc383676d79f3", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = str_split(trim(fgets(STDIN)));\n$b = str_split(trim(fgets(STDIN)));\n$c = str_split(trim(fgets(STDIN)));\n$d = str_split(trim(fgets(STDIN)));\n$e = array($a[0], $a[1], $b[0], $b[1]);\n$f = array($a[1], $a[2], $b[1], $b[2]);\n$g = array($a[2], $a[3], $b[2], $b[3]);\n$h = array($b[0], $b[1], $c[0], $c[1]);\n$i = array($b[1], $b[2], $c[1], $c[2]);\n$j = array($b[2], $b[3], $c[2], $c[3]);\n$k = array($c[0], $c[1], $d[0], $d[1]);\n$l = array($c[1], $c[2], $d[1], $d[2]);\n$m = array($c[2], $c[3], $d[2], $d[3]);\n$n = array($e, $f, $g, $h, $i, $j, $k, $l, $m);\n$o = 0;\n$p = 0;\n$r = 0;\nfor($x = 0; $x < count($n); $x++)\n{\n    for($y = 0; $y < 4; $y++)\n    {\n        if($n[$x][$y] == \"#\")\n        {\n            $o++;\n        }\n        elseif($n[$x][$y] == \".\")\n        {\n            $p++;\n        }\n    }\n    if(($o >= 3) || ($p >= 3))\n    {\n        $r = 1;\n        break;\n    }\n    else\n    {\n        $o = 0;\n        $p = 0;\n    }\n}\nif($r == 1)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "efbbe97f86f0658aed162ea5db3f51ed", "src_uid": "01b145e798bbdf0ca2ecc383676d79f3", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$a = array();\n\tfor ($i = 0; $i < 4; $i++) {\n\t\t$t = trim(fgets(STDIN));\n\t\tarray_push($a,array());\n\t\tfor ($j = 0; $j < 4; $j++) array_push($a[$i],$t[$j]);\n\t}\n\t$chk = false;\n\tfor ($i = 0; $i < 3; $i++)\n\t\tfor ($j = 0; $j < 3; $j++) {\n\t\t\tif (($a[$i][$j] == '#') + ($a[$i+1][$j] == '#') + ($a[$i][$j+1] == '#') + ($a[$i+1][$j+1] == '#') >= 3 || ($a[$i][$j] == '.') + ($a[$i+1][$j] == '.') + ($a[$i][$j+1] == '.') + ($a[$i+1][$j+1] == '.') >= 3) {\n\t\t\t\t$chk = true;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\techo ($chk) ? 'YES' : 'NO';\n?> ", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "bbe5d360274d655e92945fbe62127e31", "src_uid": "01b145e798bbdf0ca2ecc383676d79f3", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// Retrieve input\n$stdin = fopen('php://stdin', 'r');\nfunction g() {\n\tglobal $stdin;\n\treturn explode(\" \", trim(fgets($stdin)));\n}\n\n// Codeforces Contest 176 Div 2 Problem A\nfor ($i = 0; $i < 4; $i++) {\n\t$raw = g();\n\tfor ($j = 0; $j < 4; $j++) {\n\t\t$x[$i][$j] = ((substr($raw[0], $j, 1) == \"#\") ? 1 : 0);\n\t}\n}\n\nfunction square($i,$j) {\n\tglobal $x;\n\treturn $x[$i][$j] + $x[$i][$j+1] + $x[$i+1][$j] + $x[$i+1][$j+1];\n}\n\nfor ($i = 0; $i < 3; $i++) {\n\tfor ($j = 0; $j < 3; $j++) {\n\t\tif (square($i, $j) != 2) {echo \"YES\"; exit;}\n\t}\n}\n\necho \"NO\";\n\n// End of submission file\n// Submission by chaotic_iak\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "185a87cdc79ab8edb9aff77962200d4c", "src_uid": "01b145e798bbdf0ca2ecc383676d79f3", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$ok = false;\n\t$pre = array();\n\t$st = trim(fgets(STDIN));\n\tfor($i=0,$sz=strlen($st);$i < $sz;++$i) $pre[$i] = intval($st[$i]=='#' ? 1:0);\n\t$cur = array();\n\t$sz=0;\n\n\twhile(($st = trim(fgets(STDIN)))!=\"\") {\n\n\n\t\tif($ok == true) continue;\n\t\t$cur[0] = intval($st[0] == \"#\" ? 1:0);\n\t\t\n\t\tfor($i=1,$sz=strlen($st);($i < $sz);++$i)  {\n\t\t\t$cur[$i] = intval(($st[$i]==\"#\" ? 1:0));\n\n\t\t\t$tmp = intval($pre[$i]+ $pre[$i-1]+$cur[$i-1]+$cur[$i]);\n\t\t\t//print($tmp);\n\t\t\tif($tmp >= 3|| $tmp <= 1){\n\t\t\t\t$ok=true;\n\t\t\t//\tprint(\"yes\");\n\t\t\t}\n\t\t}\n\t//\tprint_r($pre);\n\t\tfor ($i=0;$i<$sz;++$i) $pre[$i] = $cur[$i];\n\t//\tprint_r($pre);\n\t}\n\n\techo($ok==true ? \"YES\":\"NO\");\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "1dd80d051a40c093612272d6c7ecb137", "src_uid": "01b145e798bbdf0ca2ecc383676d79f3", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $arr = array();\n    $c = '#';\n    for($i=0; $i<4; $i++)\n        array_push($arr, trim(fgets(STDIN)));\n    $flag = false;\n    for($i=0; $i<3; $i++)\n    {\n        $res = 0;\n        for($j=0; $j<3; $j++)\n        {\n            $res += $arr[$i][$j] == $c;\n            $res += $arr[$i][$j+1] == $c;\n            $res += $arr[$i+1][$j] == $c;\n            $res += $arr[$i+1][$j+1] == $c;\n            if($res != 2)\n                $flag = true;\n            $res = 0;\n        }\n    }\n    if($flag)\n        echo \"YES\\n\";\n    else echo \"NO\\n\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "f4c8926508ed3781a1def54c982e7711", "src_uid": "01b145e798bbdf0ca2ecc383676d79f3", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\ndefine(\"_DEBUG\", 0);\n\n$fp = fopen(\"php://stdin\", 'r');\n\nif (!_DEBUG) $str = fgets($fp);\nelse \n\t$str = '9';\n\t\n\t\n$n = (int)$str;\n\nif (!_DEBUG)\n{\n\t$str = fgets($fp);\n}\nelse \n{\n\t$str = '110011101';\n}\n\n$str = trim($str);\n\n$mas = explode('0', $str);\n//var_export($mas);\n$res = '';\nfor ($i = 0; $i < sizeof($mas); $i++)\n{\n\t$res .= strlen($mas[$i]);\n}\n\necho $res;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "d30e1e6baa16b21df7aa7c7ccaa787c3", "src_uid": "a4b3da4cb9b6a7ed0a33a862e940cafa", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = fgets(STDIN);\n$s = fgets(STDIN);\n\necho array_reduce(array_map(function ($ones) {\n    return strlen($ones);\n}, explode('0', trim($s))), function ($number, $digit) {\n    $number *= 10;\n    return $number + $digit;\n}, 0);\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "692466f276e738841fe8537765ccc6e4", "src_uid": "a4b3da4cb9b6a7ed0a33a862e940cafa", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=intval(trim(fgets(STDIN)));\n$b=explode('0',trim(fgets(STDIN)));\n$c='';\nfor ($i=0;$i<count($b);$i++){\n    $c.=strlen($b[$i]);\n}\necho $c;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ba07ef510404bdd578ba907653838d1f", "src_uid": "a4b3da4cb9b6a7ed0a33a862e940cafa", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n\n$left = $right = $n;\n\n$first = floor($n / 2);\n$second = $right - $first;\n$therd = $right - $second;\n\necho $first + $second + $therd; \n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "9b4642d7274fd6a9aee21c24c145a2ea", "src_uid": "031e53952e76cff8fdc0988bb0d3239c", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$str = file_get_contents('php://stdin');\n\nprintf('%s', $str * 3 / 2);", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "ca2b2e12de0fb7b5cfa0ae4036777136", "src_uid": "031e53952e76cff8fdc0988bb0d3239c", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\",$n);\necho floor(1.5*$n); \n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "1d601a0af32ec380d5add6063b501556", "src_uid": "031e53952e76cff8fdc0988bb0d3239c", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP echo fgets(STDIN)*3/2;?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "ddeddd91e49cf9907472e9ef11433751", "src_uid": "031e53952e76cff8fdc0988bb0d3239c", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP $a=fgets(STDIN);echo $a+$a/2;?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "20e80e5341db319fcc404bdb1b45941c", "src_uid": "031e53952e76cff8fdc0988bb0d3239c", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php echo fgets(STDIN)*3/2;?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "644f07e18d8d4ab0d590d4ef9e2c471b", "src_uid": "031e53952e76cff8fdc0988bb0d3239c", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$num=trim(fgets(STDIN));\n$input=trim(fgets(STDIN));\npreg_match_all(\"/\\(([^\\)]*)\\)/\", $input, $aMatches);\n$sResult = $aMatches[1];\n$countword1=implode(\" \", $sResult);\n$countword2=str_word_count($countword1);  \n$lenthword1=preg_replace(\"/\\([^)]+\\)/\",\" \",$input);\n$lenthword2=str_ireplace(\"_\", \" \", $lenthword1);\n$lenthword3=str_ireplace(\"( )\", \" \", $lenthword2);\n$lenthword4=str_ireplace(\"()\", \" \", $lenthword3);\n$ex= explode(\" \", $lenthword4);\n$longestWordLength = 0;\nforeach ($ex as $word) {\n   if (strlen($word) > $longestWordLength) {\n      $longestWordLength = strlen($word);\n     \n   }\n}\necho $longestWordLength.\" \".$countword2;\n?>", "lang_cluster": "PHP", "tags": ["expression parsing", "strings", "implementation"], "code_uid": "607b0396d7e927737bebdf422df50139", "src_uid": "fc86df4931e787fa3a1a40e2aecf0b92", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\nerror_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\n###### /IO ######\n\nfunction pass_compare($p1, $p2) {\n\t$l1 = strlen($p1);\n\t$l2 = strlen($p2);\n\tif ($l1 > $l2) {\n\t\treturn 1;\n\t} elseif ($l1 < $l2) {\n\t\treturn -1;\n\t}\n\treturn 0;\n}\n\nfunction getAnswer($is_test = false, $f = false) {\n\tif ($is_test)\n\t\t$stream = $f;\n\telse\n\t\t$stream = STDIN;\n\t/* begin body */\n\treadString($stream);\n\t$baseStr = readString($stream) . '_';\n\t$len = strlen($baseStr);\n\n\t$isInS = false;\n\t$maxWord = '';\n\t$wordsInS = array();\n\t$isDoingWord = false;\n\t$currentWord = '';\n\tfor ($i = 0; $i < $len; $i++) {\n\t\tif (in_array($baseStr[$i], array('(', ')', '_'))) {\n\n\t\t\tif (!empty($currentWord)) {\n\t\t\t\tif ($isInS) {\n\t\t\t\t\t$wordsInS[] = $currentWord;\n\t\t\t\t} elseif (strlen($currentWord) > strlen($maxWord)) {\n\t\t\t\t\t$maxWord = $currentWord;\n\t\t\t\t}\n\t\t\t}\n\t\t\t$isDoingWord = false;\n\t\t\t$currentWord = '';\n\t\t\tif ($baseStr[$i] == '(') {\n\t\t\t\t$isInS = true;\n\t\t\t} elseif ($baseStr[$i] == ')') {\n\t\t\t\t$isInS = false;\n\t\t\t}\n\t\t} else {\n\t\t\t$isDoingWord = true;\n\t\t\t$currentWord.=$baseStr[$i];\n\t\t}\n\t}\n\techo strlen($maxWord) . ' ' . count($wordsInS);\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["expression parsing", "strings", "implementation"], "code_uid": "ad8c433dfdb26bf84c4b47ebca280477", "src_uid": "fc86df4931e787fa3a1a40e2aecf0b92", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = \"_\" . trim(fgets(STDIN)) . \"_\";\n$c = array();\n$d = 0;\n$e = \"\";\n$f = 0;\nfor($x = 0; $x < strlen($b); $x++)\n{\n     if($b[$x] == \"(\")\n     {\n          $f = 1;\n          $b[$x] = \"_\";\n          $e .= $b[$x];\n     }\n     elseif($b[$x] == \")\")\n     {\n          $b[$x] = \"_\";\n          $e .= $b[$x];\n          $c[$d] = $e;\n          $d++;\n          $e = \"\";\n          $f = 0;\n     }\n     elseif($f == 1)\n     {\n          $e .= $b[$x];\n          $b[$x] = \"_\";\n     }\n}\n$g = 0;\n$h = 0;\nfor($x = 0; $x < strlen($b); $x++)\n{\n     if($b[$x] != \"_\")\n     {\n          $h++;\n     }\n     else\n     {\n          $g = max($g, $h);\n          $h = 0;\n     }\n}\n$i = 0;\nfor($x = 0; $x < count($c); $x++)\n{\n     $j = explode(\"_\", $c[$x]);\n     for($y = 0; $y < count($j); $y++)\n     {\n          if($j[$y] == TRUE)\n          {\n               $i++;\n          }\n     }\n}\nprint $g . \" \" . $i;\n?>", "lang_cluster": "PHP", "tags": ["expression parsing", "strings", "implementation"], "code_uid": "ee95e0ebd73e8714481166eeae7344e1", "src_uid": "fc86df4931e787fa3a1a40e2aecf0b92", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    list( $n, $m ) = explode(\" \", trim(fgets(STDIN)));\n    $arr = explode(\" \", trim(fgets(STDIN)));\n    $used = array();\n    $flag = true;\n    while($flag)\n    {\n        $flag = false;\n        for($i=0; $i<$n; $i++)\n        {\n            if(!$used[$i])\n            {\n                $last = $i + 1;\n                $flag = true;\n                $arr[$i] = max(0, $arr[$i] - $m);\n                if(!$arr[$i])\n                    $used[$i] = true;\n            }\n        }\n    }\n    echo $last . PHP_EOL;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5f99e4737fd30bece28b675e11298f05", "src_uid": "c0ef1e4d7df360c5c1e52bc6f16ca87c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * User: Nash\n * Date: 7/19/14\n * Time: 6:23 PM\n */\n\n$in = fopen('php://stdin', 'r');\n\nlist($n,$m) = explode(\" \", rtrim(fgets($in)));\n$a = explode(\" \", rtrim(fgets($in)));\n\n$c = 0;\n$x = 0;\n\nfor($i=0; $i<$n; $i++){\n    $cx = ceil($a[$i]/$m);\n\n    if($x<=$cx){\n        $c = $i+1;\n        $x = $cx;\n    }\n}\n\necho $c.\"\\n\";\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a3c311960492eb848f91af47969e57cc", "src_uid": "c0ef1e4d7df360c5c1e52bc6f16ca87c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $s=fgets(STDIN);\n    $e=explode(\" \",$s);\n    $n=intval($e[0]);\n    $m=intval($e[1]);\n    $s=fgets(STDIN);\n    $a=explode(\" \",$s);\n    for($i=1;$i<=$n;$i++)\n        $a[$i-1]=intval($a[$i-1]);\n    $b=0;\n    $e=$n-1;\n    for($i=1;$i<=$n;$i++)\n        $p[$i-1]=$i;\n    while($b<$e){\n        if($a[$b]<=$m)\n            $b++;\n        else{\n            $e++;\n            $a[$e]=$a[$b]-$m;\n            $p[$e]=$p[$b];\n            $b++;\n        }\n    }\n    printf(\"%d\",$p[$e]);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "59649cc94c6fc6a1650a47bc2676ce62", "src_uid": "c0ef1e4d7df360c5c1e52bc6f16ca87c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $m) = explode(\" \", trim(fgets(STDIN)));\n$a = explode(\" \", trim(fgets(STDIN)));\n  for($i=0;$i<$n;$i++)$b[$i]=$i;\n  while($n>=2)\n  {\n      $a[0]-=$m;\n      $x=$a[0];\n      $y=$b[0];\n      for($i=1;$i<$n;$i++)\n      {\n          $a[$i-1]=$a[$i];\n          $b[$i-1]=$b[$i];\n      }   \n      if($x>0)\n      {\n          $a[$n-1]=$x;\n          $b[$n-1]=$y;\n      }   \n      else\n      {\n          $n--;\n      }\n  }\n  echo $b[0]+1;\n ?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "aa5d9ea564fee6e17dae6c4860eb630c", "src_uid": "c0ef1e4d7df360c5c1e52bc6f16ca87c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = array();\nfor($x = 1; $x <= 100; $x++)\n{\n    for($y = 0; $y < $a; $y++)\n    {\n        if($c[$y] > $b)\n        {\n            $c[$y] -= $b;\n        }\n        else\n        {\n            array_unshift($d, $y + 1);\n            $c[$y] = 1000000;\n        }       \n    }\n    $e = array_unique($d);\n    if(count($e) == $a)\n    {\n        break;\n    }\n}\nprint $d[0];\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ab181ed5f5362239a8a7ce2d78d13273", "src_uid": "c0ef1e4d7df360c5c1e52bc6f16ca87c", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction expression($a, $b, $c) {\n    $res = array();\n    $res[] = $a * $b * $c;\n    $res[] = $a + $b * $c;\n    $res[] = ($a + $b) * $c;\n    $res[] = $a * $b + $c;\n    $res[] = $a * ($b + $c);\n    $res[] = $a + $b + $c;\n    return $res;\n}\nfor ($i = 0; $i < 3; $i++) {\n    fscanf(STDIN, '%d\\n', $arg[]);\n}\n$result = max(expression($arg[0], $arg[1], $arg[2]));\nprint($result);", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "795a376e13ce91a20d4abb4fec0fdfe9", "src_uid": "1cad9e4797ca2d80a12276b5a790ef27", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$output = array();\n$max = 0;\n\n$output[] = $a+$b+$c;\n$output[] = $a*$b*$c;\n$output[] = $a*$b+$c;\n$output[] = $a+$b*$c;\n$output[] = $a*($b+$c);\n$output[] = ($a+$b)*$c;\n\nfor( $i=0; $i<sizeof($output); $i++ ){\n    if( $max < $output[$i] ){\n        $max = $output[$i];\n    }\n}\necho $max;\n", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "a706dd29d73309a7497b0e8860dfc58d", "src_uid": "1cad9e4797ca2d80a12276b5a790ef27", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$res = array();\n$res[] = $a*$b+$c;\n$res[] = $a+$b*$c;\n$res[] = $a+$b+$c;\n$res[] = $a*$b*$c;\n$res[] = ($a+$b)*$c;\n$res[] = $a*($b+$c);\necho max($res);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "6bb0f589454710f354f106b8f3ed275b", "src_uid": "1cad9e4797ca2d80a12276b5a790ef27", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\\n\", $one);\nfscanf(STDIN, \"%d\\n\", $two);\nfscanf(STDIN, \"%d\\n\", $three);\n\n$variants = [];\n\n$variant[0] = $one + $two * $three;\n$variant[1] = $one * ($two + $three);\n$variant[2] = $one * $two * $three;\n$variant[3] = ($one + $two) * $three;\n$variant[4] = $one + $two + $three;\n\nprint_r(max($variant));\n\n  ", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "e586e79cd4cc7555eb29dce8cce5ff73", "src_uid": "1cad9e4797ca2d80a12276b5a790ef27", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d\", $a);\n   fscanf(STDIN, \"%d\", $b);\n   fscanf(STDIN, \"%d\", $c);\n   $ans1 = $a + $b * $c;\n   $ans2 = $a * ($b + $c);\n   $ans3 = $a * $b * $c;\n   $ans4 = ($a + $b) *$c;\n   $ans5 = $a + $b + $c;\n   $ans6 = $a * $b + $c;\n   echo max($ans1, $ans2, $ans3, $ans4, $ans5, $ans6);\n   ", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "94f9bf469c5946e574c77ec22159fc9e", "src_uid": "1cad9e4797ca2d80a12276b5a790ef27", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = $a + $b + $c;\n$e = $a + $b * $c;\n$f = ($a + $b) * $c;\n$g = $a * $b * $c;\n$h = $a * $b + $c;\n$i = $a * ($b + $c);\nprint max($d, $e, $f, $g, $h, $i);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "28144215a7fee82e1264e5540e364967", "src_uid": "1cad9e4797ca2d80a12276b5a790ef27", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\necho max($a*$b*$c, $a+$b+$c, ($a+$b)*$c, $a*($b+$c));\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "1b653239cb81c445b40806957b1b17f8", "src_uid": "1cad9e4797ca2d80a12276b5a790ef27", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=trim(fgets(STDIN));\n$b=trim(fgets(STDIN));\n$c=trim(fgets(STDIN));\n$arr=array();\n$arr[0]=$a + $b * $c;\n$arr[1]=$a * ($b + $c);\n$arr[2]=$a * $b * $c;\n$arr[3]=($a + $b) * $c;\n$arr[4]=$a + $b + $c;\n\necho max($arr);\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "d8fab0e300593718ef0591319d5badfa", "src_uid": "1cad9e4797ca2d80a12276b5a790ef27", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$a = trim(fgets(STDIN));\n\t$b = trim(fgets(STDIN));\n\t$c = trim(fgets(STDIN));\n\t$data[] = $a+$b*$c;\n\t$data[] = ($a+$b)*$c;\n\t$data[] = $a*$b+$c;\n\t$data[] = $a*($b+$c);\n\t$data[] = $a+$b+$c;\n\t$data[] = $a*$b*$c;\n\techo max($data);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "3236ed4bf74386f1dce3b7fa2a8f133b", "src_uid": "1cad9e4797ca2d80a12276b5a790ef27", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$in_a = trim(fgets(STDIN));\n$in_b = trim(fgets(STDIN));\n$in_c = trim(fgets(STDIN));\n$res[] = $in_a*$in_b+$in_c;\n$res[] = $in_a+$in_b*$in_c;\n$res[] = $in_a+$in_b+$in_c;\n$res[] = $in_a*$in_b*$in_c;\n$res[] = ($in_a+$in_b)*$in_c;\n$res[] = $in_a*($in_b+$in_c);\necho max($res);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "ea37f7d4b04b7ade861f7b4987cead13", "src_uid": "1cad9e4797ca2d80a12276b5a790ef27", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n        fscanf(STDIN, \"%d\", $n);\n        $d = floor($n / 3);\n        if (($n % 3) == 2)\n            $d++;\n        $f = floor($d / 12);\n        $d%=12;\n        printf(\"%d %d\", $f, $d);\n        ?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "c3bf7539aa82cc9f7016c79dea4d9036", "src_uid": "5d4f38ffd1849862623325fdbe06cd00", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = $a / 3;\n$c = $a % 3;\nif($c == 2)\n{\n    $b += 1;\n}\n$d = floor($b / 12);\n$e = $b % 12;\nprint $d . \" \" . $e;\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "ab58fed29c41096becb238799afab48a", "src_uid": "5d4f38ffd1849862623325fdbe06cd00", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nif (getenv('APPLICATION_ENV') == 'development') {\n    $inputStream = fopen('82A.txt', 'r');\n    $outputStream = STDOUT;\n} else {\n    $inputStream = STDIN;\n    $outputStream = STDOUT;\n}\nfunction f($n) {\n    $it = 0;\n    if ($n < 5) {\n        return $n;\n    }\n    $i = 0;\n    while ($i + $i + 5 < $n) {\n        $i = $i + $i + 5;\n        $it++;\n    }\n    $eachCnt = pow(2, $it);\n    return intval( ($n - $i - 1) / $eachCnt + 0.000001 ) + 1;\n}\n$ret = array(1 => \"Sheldon\", 2 => \"Leonard\", 3 => \"Penny\", 4 => \"Rajesh\", 5 => \"Howard\");\n\n$n = (int) fgets($inputStream);\n\n$out = $ret[f($n)];\nfwrite($outputStream, $out);\n\nif (getenv('APPLICATION_ENV') == 'development') {\n    fclose($inputStream);\n    fclose($outputStream);\n}", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "90bf98c5121308a0808a459f3ed7d5d1", "src_uid": "023b169765e81d896cdc1184e5a82b22", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = fopen('php://stdin', 'r');\n/*$out = fopen('php://stdout', 'w');\n$in = fopen('a.in', 'r');\n$out = fopen('php://stdout', 'w');*/\n\n$persons = array(\n\t\"Sheldon\", \"Leonard\", \"Penny\", \"Rajesh\", \"Howard\"\n);\n$pos = (int)fgets($in) - 1;\n$c = floor($pos/5) + 1;\n$len = floor(log($c, 2));\n\n$sl = pow(2, $len);\n$rs = (int) (($sl - 1) * 5);\n$rl = ($pos - $rs);\n$p = (int)floor($rl / $sl);\n\n//echo $c . ' ' . $len . ' ' . $rs . ' ' . $rl . ' ' . $p;\necho $persons[$p] . \"\\n\";\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "e9d5d99d7858e0d92eb7809d26d55776", "src_uid": "023b169765e81d896cdc1184e5a82b22", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/***************************************************************************\n * \n * Copyright (c) 2013 Baidu.com, Inc. All Rights Reserved\n * \n **************************************************************************/\n \n \n \n/**\n * @file 82A.php\n * @author sunyuqi01(com@baidu.com)\n * @date 2013/12/13 17:59:12\n * @brief \n *  \n **/\n\nfunction getAns($rest,$base){\n    return floor(($rest-1)/($base/5));\n}\n\n$Ans = array(\n    'Sheldon', 'Leonard', 'Penny', 'Rajesh', 'Howard',\n);\n\nfscanf(STDIN,\"%d\",$N);\n$base = 5;\nwhile ($N > $base){\n    $N -= $base;\n    $base *= 2;\n}\nprintf(\"%s\\n\",$Ans[getAns($N,$base)]);\n\n/* vim: set expandtab ts=4 sw=4 sts=4 tw=100: */\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "2439c176f0a54a307043c79c1dc1c860", "src_uid": "023b169765e81d896cdc1184e5a82b22", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$mas = array(\"Sheldon\", \"Leonard\", \"Penny\", \"Rajesh\", \"Howard\");\n$a--;\nwhile ($a >= 5)\n{\n    $a -= 5;\n    $a /= 2;\n}\n\necho $mas[$a];\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "fb49a1807010207f6b5c08811152d4c5", "src_uid": "023b169765e81d896cdc1184e5a82b22", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=trim(fgets(STDIN));\n$a=array(\"Sheldon\",\"Leonard\",\"Penny\",\"Rajesh\",\"Howard\");\nwhile($n>5) { $n -= 5; $n /= 2; }\nprint $a[ceil($n)-1];", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "24d77b4cec63827d752296b35155dafe", "src_uid": "023b169765e81d896cdc1184e5a82b22", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    define('DEBUG', 0);\n    \n    if(DEBUG) $GLOBALS['file'] = fopen('input.txt', 'r');\n    function debug($var){echo '<pre>';print_r($var);echo '</pre>';} \n    function read_line()\n    {       \n        if(DEBUG) { $file = $GLOBALS['file'];$line = trim(fgets($file));}\n        else $line = trim(fgets(STDIN));\n        return $line;\n    }\n    function get_array($line){return explode(' ', $line);}\n    function read_array(){return get_array(read_line());}   \n    //echo \"$s\\n\";\n    /*****************************************************************/\n    \n    $n = read_line();\n    //$n = 1802;\n        \n    $people[] = 'Sheldon';\n    $people[] = 'Leonard';\n    $people[] = 'Penny';\n    $people[] = 'Rajesh';\n    $people[] = 'Howard';   \n    \n    if($n<=5)\n    {\n        echo $people[$n-1];\n        die;\n    }\n    \n    $k=1;\n    $sum = 5;\n    $sum_next = 15;\n    \n    while($sum_next<$n)\n    {       \n        $k++;\n        $sum = $sum_next;\n        $sum_next = $sum + 5*pow(2,$k);\n    }\n    \n    $o = $n-$sum;\n    \n    $k = pow(2,$k);\n    \n    $a = ceil($o/$k);\n    echo $people[$a-1];\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "49c40c80d8b6499ad0694e470cc74edc", "src_uid": "023b169765e81d896cdc1184e5a82b22", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdin = fopen('php://stdin', 'r');\n$c = fgets($stdin);\n$i_d = 5;\n\n\nwhile(1){\n\tif ($c > $i_d){\n\t\t$c = $c - $i_d;\n\t\t$i_d = $i_d * 2;\n\t}\n\telse{\n\t\t\n\t\t$where = ($c / ($i_d/5));\n\t\tif($where <= 1){echo \"Sheldon\";}\n\t\telseif($where <= 2){echo \"Leonard\";}\n\t\telseif($where <= 3){echo \"Penny\";}\n\t\telseif($where <= 4){echo \"Rajesh\";}\n\t\telseif($where <= 5){echo \"Howard\";}\n\t\telse{echo \"erorrr\";}\n\t\tgoto end;\n\t}\n\t\n}\nend:\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "ef0a7de61756eadbe45119ca94c91e50", "src_uid": "023b169765e81d896cdc1184e5a82b22", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = trim(fgets(STDIN));\n$names = [\"\", \"Sheldon\", \"Leonard\", \"Penny\", \"Rajesh\", \"Howard\"];\n$result = 5;\n$min = 0;\n$pow = 1;\n$level = 0;\n\nif ($in <= 5) {\n    echo $names[$in];\n    exit;\n}\n\nwhile ($in > $min) {\n    if ($level) {\n        $pow *= 2;\n    }\n    \n    $min = 10 * $pow - 5;\n    $level++;\n}\n\nwhile ($in + $pow <= $min) {\n    $min -= $pow;\n    $result--;\n}\n\necho($names[$result]);", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "0f9e3169d0156cfd04806bdc5b7d54f0", "src_uid": "023b169765e81d896cdc1184e5a82b22", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n//$f = fopen('3.txt', 'r');\n$n = trim(fgets($f));\n\n$a = 5;\n$i = 1;\n\n$s = $a;\n$prev = 1;\nwhile($s<$n){\n    $prev = $s;\n    $s = $s + pow(2,$i)*$a;\n    $i++;\n}\n\n$x = floor($s - $n)/($s - $prev)*100;\n\nif (0<=$x && $x<=20){\n    exit(\"Howard\");\n\n}\nif (20<$x && $x<=40){\n    exit(\"Rajesh\");\n\n}\nif (40<$x && $x<=60){\n    exit(\"Penny\");\n}\nif (60<$x && $x<=80){\n    exit(\"Leonard\");\n}\nif (80<$x && $x<=100){\n    exit(\"Sheldon\");\n}\n\n\nexit(\"Sheldon\");\n\n\n\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "440a2b530522a9b016b90b063e0760be", "src_uid": "023b169765e81d896cdc1184e5a82b22", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = trim(fgets(STDIN));\n$names = [\"\", \"Sheldon\", \"Leonard\", \"Penny\", \"Rajesh\", \"Howard\"];\n$result = 5;\n$min = 0;\n$level = 0;\n\nwhile ($in > $min) {\n    $min = 10 * pow(2, $level) - 5;\n    $level++;\n}\n\n$range = pow(2, $level - 1);\n\nwhile ($in + $range <= $min) {\n    $min -= $range;\n    $result--;\n}\n\necho($names[$result]);\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "8e57b8f2138f90147058876f8d1ee970", "src_uid": "023b169765e81d896cdc1184e5a82b22", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = 0;\n$e = 0;\nfor($x = 0; $x < $a; $x++)\n{\n     if($c[$x] > 8)\n     {\n          $b -= 8;\n          $d += $c[$x] - 8;\n     }\n     else\n     {\n          $d += $c[$x];\n          if($d > 8)\n          {\n               $b -= 8;\n               $d -= 8;\n          }\n          else\n          {\n               $b -= $d;\n               $d = 0;\n          }\n     }\n     if($b <= 0)\n     {\n          $e = 1;\n          break;\n     }\n}\nif($e == 0)\n{\n     print \"-1\";\n}\nelse\n{\n     print $x + 1;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c918b71f3222ba26123df82699049f9b", "src_uid": "24695b6a2aa573e90f0fe661b0c0bd3a", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * Created by PhpStorm.\n * User: User\n * Date: 8/13/2017\n * Time: 8:48 PM\n */\n\n\n$val = explode(' ', fgets(STDIN));\n$arr = explode(' ', fgets(STDIN));\n$sum = 0;\n$status = 0;\n$hold = -1;\n$temp = 0;\nfor($i=0;$i<$val[0];$i++){\n\n\tif($arr[$i]>8){\n\t\t$sum+=8;\n\t\t$arr[$i+1]+=($arr[$i] - 8);\n\t}\n\telse{\n\t\t$sum+=$arr[$i];\n\t}\n\t//print $sum . ' ';\n\tif($sum>=$val[1]){\n\t\t$hold = $i+1;\n\t\tbreak;\n\t}\n\n}\nprint $hold;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "345a25c5aa452b8d5edb4c1d6892cac0", "src_uid": "24695b6a2aa573e90f0fe661b0c0bd3a", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$file = fopen('php://stdin', 'rt');\n$c = fgets($file);\n$str = fgets($file);\nfclose($file);\n$a = 0;\nfor ($i=0; $i<strlen($str)-1; $i++) {\n\tif ($str[$i]==$str[$i+1]) $a++;\n}\n$file = fopen('php://stdout', 'w+');\nfwrite($file, $a);\nfclose($file);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "068c3e9abbea1547dbc7245922c0a307", "src_uid": "d561436e2ddc9074b98ebbe49b9e27b8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%d\\n\", $n);\nfscanf(STDIN, \"%s\\n\", $stones_str);\n\n$stones = str_split($stones_str);\n\n$prevStone = \"\";\n$nextStone = \"\";\n$currentStone = \"\";\n$newStones = \"\";\n$removedStones = 0;\nfor ($i = 0; $i < $n; $i++) {\n    $prevStone = $currentStone;\n    $currentStone = $stones[$i];\n    if ($i != 0) {\n        $prevStone = $stones[$i - 1];\n    }\n    else {\n        $newStones .= $currentStone;\n    }\n    \n    if ($currentStone != $prevStone){\n        $newStones .= $currentStone;\n    }\n    else {\n        if ($i != 0) {\n            $removedStones++;\n        }\n    }\n}\n\necho $removedStones;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "88e90d5893d33e23a8807f31ac916a80", "src_uid": "d561436e2ddc9074b98ebbe49b9e27b8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = rtrim(fgets(STDIN));\n$stones = str_split(rtrim(fgets(STDIN)));\n$r = 0;\nfor($i=0; $i<$n; $i++)\n{\n    if(array_key_exists($i+1, $stones) && ($stones[$i] == $stones[$i+1])){\n        $r++;\n    }\n}\necho($r);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b94809c88401cea2dc54fead5a11a24e", "src_uid": "d561436e2ddc9074b98ebbe49b9e27b8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * Secdra @2020\n */\n\nfscanf(STDIN, \"%d\", $word_len);\n$word = trim(fgets(STDIN));\n$new_word = $word[0];\nfor ($i = 0; $i < $word_len; $i++) {\n    if ($word[$i] != $new_word[-1])\n        $new_word .= $word[$i];\n}\nprintf(\"%d\", $word_len - strlen($new_word));\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e15c8876496bc263453ed110116102e7", "src_uid": "d561436e2ddc9074b98ebbe49b9e27b8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$len = trim(fgets(STDIN)) - 1;\n$s = trim(fgets(STDIN));\n$remove = 0;\nfor($i=0;$i<$len;$i++){\n    if ($s[$i] === $s[$i+1])\n        $remove++;\n}\nprint $remove;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5dc634c162396c198ca7fa5c8af1404c", "src_uid": "d561436e2ddc9074b98ebbe49b9e27b8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "\n<?php\ndefine('endl',PHP_EOL);// PHP end of line\n\n$c=0;\nfscanf(STDIN,\"%d\",$n);\nfscanf(STDIN,\"%s\",$st);\n\nfor($i=1;$i<strlen($st);$i++)\n    if($st[$i]==$st[$i-1])$c++;\n    \nfprintf(STDOUT,\"%d\",$c);\n\n   \n?> ", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e53b382183bab2e5c83858209b7f1bf6", "src_uid": "d561436e2ddc9074b98ebbe49b9e27b8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$stone = str_split(trim(fgets(STDIN)),1);\n$tik = $n;\nfor ($i=1;$i<$n;$i++)\n{\n    if ($stone[$i-1]==$stone[$i])$tik--;\n}\necho $n-$tik;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4b957cd4947bcb5e21329dd0aa71c900", "src_uid": "d561436e2ddc9074b98ebbe49b9e27b8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN,\"%d\",$n);\nfscanf(STDIN,\"%s\",$str);\n\n$count = 0;\nfor($i = 1; $i<$n; ++$i) {\n    if($str[$i] == $str[$i-1]) {\n        ++$count;\n    }\n}\nfprintf(STDOUT,$count);\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "3f16f67d699dd39311c54a005aea2357", "src_uid": "d561436e2ddc9074b98ebbe49b9e27b8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=trim(fgets(STDIN));\n$s=trim(fgets(STDIN));\n$i=1;\n$x=0;\n\nwhile ($i<$n) {\n\tif ($s[$i-1] == $s[$i]) {\n\t\t$x++;\n\t}\n\t$i++;\n}\necho $x;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "9483bb94f8deca50641d098ba533d7dd", "src_uid": "d561436e2ddc9074b98ebbe49b9e27b8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$stdin = fopen('php://stdin', 'r');\n\nfscanf($stdin, '%d', $n);\n\n$str = str_split(trim(fgets($stdin)));\n\n$result = array();\n$prev = null;\nfor($i = 0; $i < $n; $i++)\n{\n\tif($prev == null || $prev != $str[$i])\n\t{\n\t\t$result[] = $str[$i];\n\t\t$prev = $str[$i];\n\t}\n}\n\necho $n - count($result);\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6b2ce88772f818103d23df612f706713", "src_uid": "d561436e2ddc9074b98ebbe49b9e27b8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// 513A     Игра  \n$in = fopen(\"php://stdin\", 'r');\n\n$input_line = fgets($in);\nlist($n1, $n2, $k1, $k2) = preg_split('/ /', substr($input_line, 0, strlen($input_line)-2), -1, PREG_SPLIT_NO_EMPTY);\n\n$n1 = (int) $n1;\n$n2 = (int) $n2;\n$k1 = (int) $k1;\n$k2 = (int) $k2;\n\nif (($n1 - $n2) > 0) {\n    $out = 'First';\n} else {\n    $out = 'Second';\n}\n\necho $out;\n\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "bcc5f24d7c8d4158be576d3407a249e2", "src_uid": "aed24ebab3ed9fd1741eea8e4200f86b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = trim(fgets(STDIN));\n$in = explode(\" \", $line);\n$n1 = intval($in[0]);\n$n2 = intval($in[1]);\n$k1 = intval($in[2]);\n$k2 = intval($in[3]);\n\ndo {\n\t$n1 -= 1;\n\t$n2 -= 1;\n} while ($n1 > 0 && $n2 > 0);\n\nif ($n1 == 0)\n\t$result = 'Second';\nelse\n\t$result = 'First';\n\n\nfprintf(STDOUT, $result);", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "ca0e101cd0162c09e119b7bd35ebf573", "src_uid": "aed24ebab3ed9fd1741eea8e4200f86b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist ($n1, $n2, $k1, $k2) = explode(' ', trim(fgets(STDIN)));\n\nif ($n2 >= $n1) {\n  echo \"Second\\n\";\n} else {\n  echo \"First\\n\";\n}", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "031bdee4d97793674c5bd1ee83a63726", "src_uid": "aed24ebab3ed9fd1741eea8e4200f86b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\nif($b >= $a)\n{\n    print \"Second\";\n}\nelse\n{\n    print \"First\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "525c9378f1953ce30ab3133c2271df05", "src_uid": "aed24ebab3ed9fd1741eea8e4200f86b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n1, $n2, ,) = explode(\" \", getLine());\necho ($n1>$n2 ? \"First\" : \"Second\") . PHP_EOL;\n\nfunction getLine()\n{\n    return trim(fgets(STDIN));\n}", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "aea84ecc62895f3d3e37397adbdf494e", "src_uid": "aed24ebab3ed9fd1741eea8e4200f86b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tfscanf(STDIN, \"%d%d%d%d\", $n1, $n2, $k1, $k2);\n\techo ($n1 > $n2 ? \"First\" : \"Second\");\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "6dd04cfe81801a559c2f4a177da0f2ce", "src_uid": "aed24ebab3ed9fd1741eea8e4200f86b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$line = readline();\n$prompt = explode(' ', $line);\nif ($prompt[0] > $prompt[1]) {\n    echo \"First\";\n}else{\n    echo \"Second\";\n}", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "c1d41d9a72e64f4ece8610b97de7adfc", "src_uid": "aed24ebab3ed9fd1741eea8e4200f86b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$f = 0;\n$g = $c;\nfor($x = 1; $x <= $g; $x++)\n{\n    $d = min($a, $c);\n    $e = min($b, $c);\n    $h = $d;\n    $i = $e;\n    if(($x % 2) != 0)\n    {\n        for($y = 1; $y <= $h; $y++)\n        {\n            if((($c % $d) == 0) && (($a % $d) == 0))\n            {\n                $c -= $d;\n                break;\n            }\n            else\n            {\n                $d--;\n            }\n        }\n        if($c == 0)\n        {\n            $f = 1;\n            break;\n        }\n    }\n    else\n    {\n        for($y = 1; $y <= $i; $y++)\n        {\n            if((($c % $e) == 0) && (($b % $e) == 0))\n            {\n                $c -= $e;\n                break;\n            }\n            else\n            {\n                $e--;\n            }\n        }\n        if($c == 0)\n        {\n            $f = 2;\n            break;\n        }\n    }\n}\nif($f == 1)\n{\n    print \"0\";\n}\nelseif($f == 2)\n{\n    print \"1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "39790cc078a9aa6b8b493c9fb1441ad2", "src_uid": "0bd6fbb6b0a2e7e5f080a70553149ac2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n   $k = explode(' ',trim(fgets(STDIN)));\n   $n = $k[2];\n   $cur = 0;\n   $turn = 0;\n   while($n>=0){\n       $a = $n;\n       $b = $k[$cur];\n       if ($a > $b) $a ^= $b ^= $a ^= $b;\n       for($i = $b; $i >= 1; $i--) \n           if(($b%$i==0)&&($a%$i==0)) {$turn = $i; break;}\n       if($turn<=$n) {$n-=$turn; $cur ^= 1;} else break;        \n   }\n   $cur ^= 1;\n   echo $cur;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "52ee239f2e00e60843dc689cfd36e736", "src_uid": "0bd6fbb6b0a2e7e5f080a70553149ac2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a,$b,$n)=explode(' ',trim(fgets(STDIN)));\nfunction HOD($a,$n) {    \n    while ($a*$n != 0) !($a < $n) ? $a %= $n : $n %= $a;\n    return ($a + $n);\n}\nwhile(true) {\n    $n -= HOD($a,$n);\n    if($n<=0) { echo '0'; break; }\n    $n -= HOD($b,$n);\n    if($n<=0) { echo '1'; break; }\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b6c9feed2601bda8800e1b92f0b1027e", "src_uid": "0bd6fbb6b0a2e7e5f080a70553149ac2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction gcd($i, $j){\n if($i == 0) return $j;\n if($j == 0) return $i;\n if($i == $j) return $i;\n if($i > $j) return gcd($i % $j, $j); else return gcd($i, $j % $i);\n}\n\nlist($a, $b, $n) = explode(' ',trim(fgets(STDIN)));\n\n$r = 1;\nwhile($n > 0){\n if($r == 1) $n -= gcd($n, $a); else $n -= gcd($n, $b);\n $r = 1 - $r;\n}\n\nprint $r;\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "2645971c562cdc3fce2453cf3aa9b99b", "src_uid": "0bd6fbb6b0a2e7e5f080a70553149ac2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction NWD($a, $b) {\n    while ($b != 0) {\n        $c = $a % $b;\n        $a = $b;\n        $b = $c;\n    }\n    return $a;\n}\n\nfscanf(STDIN, '%d %d %d', $a, $b, $n);\n\n$player = 0;\nwhile($n > 0) {\n    if(!$player) {\n        $c = $a;\n    } else {\n        $c = $b;\n    }\n    $n -= NWD($c, $n);\n    $player = !$player;\n}\n\necho intVal(!$player);\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "8ff70e396e1fcf30bcb534c1a9e5e0ca", "src_uid": "0bd6fbb6b0a2e7e5f080a70553149ac2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \nlist($a,$b,$n)=explode(\" \", trim(fgets(STDIN)));\nfunction nod($a, $b) {\n    while ($a != $b)\n        if ($a>$b)\n            $a -= $b;\n        else\n            $b -= $a;\n    return $a;\n}\nfunction lite($a,$b,$n){\n   $f=nod($a,$n);\n   if (($n-$f)==0) return 0;\n   $f1=nod($b,$n-$f);\n   if (($n-$f-$f1)==0) return 1;\n   return lite($a,$b,$n-=($f+$f1));\n}   \nprint lite($a, $b, $n);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "029b543be8abbd7d545cb78588cdd17d", "src_uid": "0bd6fbb6b0a2e7e5f080a70553149ac2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile($s = fgets(STDIN)){\n$input .= $s;\n}\n\nfunction NOD($a, $b) {\n    if($a == 0) return $b;\n    if($b == 0) return $a;\n    $max = max($a, $b);\n    for ($i=1; $i <= $max; $i++) { \n        if((($a % $i) == 0) && (($b % $i) == 0)) {\n            $delitels[] = $i;\n        }\n    }\n\n    return max($delitels);\n}\n\n$input = explode(' ', $input);\n$semen = (int)$input[0];\n$anti = (int)$input[1];\n$stones = (int)$input[2];\n\n\n$status = 0;\n$winner = 0;\nwhile(true) {\n\n    if($status == 0) {\n        $take = NOD($semen, $stones);\n        $stones = $stones - $take;\n        if($stones < $take) {\n            $winner = 0;\n            break;\n        }\n\n        $status = 1;\n    }\n\n    if($status == 1) {\n        $take = NOD($stones, $anti);\n        $stones = $stones - $take;\n        if($stones < $take) {\n            $winner = 1;\n            break;\n        }\n\n        $status = 0;\n    }\n\n\n\n    \n}\n\necho $winner;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6ae9d75977dcdb5712bd08b687e84a0b", "src_uid": "0bd6fbb6b0a2e7e5f080a70553149ac2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN)); \n    list($a,$b,$n)= explode(' ',$n);\n    \n    //\n    function gcd($a,$b){\n        if ($b>$a) {$tmp=$b; $b=$a; $a=$tmp; unset($tmp);}\n        if ($b==0) $b=$a;\n        while ($a%$b>0){\n            $r=$a%$b;\n            $a=$b;\n            $b=$r;            \n        }\n        return $b;  \n    }\n    //\n    \n    while (1==1){\n        $nod=gcd($a,$n);\n        $n=$n-$nod;\n        if ($n<0) {print(1); break;}\n        \n        $nod=gcd($b,$n);\n        $n=$n-$nod;\n        if ($n<0) {print(0); break;}\n    }\n    \n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0885d5415c02af865b76d5f9447d8f21", "src_uid": "0bd6fbb6b0a2e7e5f080a70553149ac2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a,$b,$n) = explode(\" \",trim(fgets(STDIN)));\nfunction gcd($a,$b)\n{\n    return ($a % $b) ? gcd($b,$a % $b) : $b;\n}\nwhile (true)\n{\n    if ($n==0){echo \"1\";break;}\n    $n -= gcd($a,$n);\n    if ($n==0){echo \"0\";break;}\n    $n -= gcd($b,$n);\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "cc374383edbd4236adb42724e7adce30", "src_uid": "0bd6fbb6b0a2e7e5f080a70553149ac2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\n$b = array($a[0], $a[2], $a[1]);\n$c = array($a[1], $a[0], $a[2]);\n$d = array($a[1], $a[2], $a[0]);\n$e = array($a[2], $a[0], $a[1]);\n$f = array($a[2], $a[1], $a[0]);\n$g = array($a, $b, $c, $d, $e, $f);\n$h = array(\"C\", \"C#\", \"D\", \"D#\", \"E\", \"F\", \"F#\", \"G\", \"G#\", \"A\", \"B\", \"H\", \"C\", \"C#\", \"D\", \"D#\", \"E\", \"F\", \"F#\", \"G\", \"G#\", \"A\", \"B\", \"H\");\narray_unshift($h, \" \");\nunset($h[0]);\n$m = 0;\nfor($x = 0; $x < count($g); $x++)\n{\n    $i = $h;\n    $j = array_search($g[$x][0], $i);\n    array_splice($i, 0, $j);\n    array_unshift($i, \" \");\n    unset($i[0]);\n    $k = array_search($g[$x][1], $i);\n    $n = $k + count($h) - count($i);\n    array_splice($i, 0, $k);\n    array_unshift($i, \" \");\n    unset($i[0]);\n    $l = array_search($g[$x][2], $i);\n    $o = $l + count($h) - count($i);\n    if((($n - $j) == 4) && (($o - $n) == 3))\n    {\n        $m = 1;\n        print \"major\";\n        break;\n    }\n    elseif((($n - $j) == 3) && (($o - $n) == 4))\n    {\n        $m = 1;\n        print \"minor\";\n        break;\n    }\n}\nif($m == 0)\n{\n    print \"strange\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "e6a6b084fc0e8243438cd2a5d1f3d9f1", "src_uid": "6aa83c2f6e095848bc63aba7d013aa58", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  $fr = fopen(\"php://stdin\", \"r\");\n  $fw = fopen(\"php://stdout\", \"w\");\n \n  fscanf($fr, \"%d\", $n);\n  $n *= 2;\n  $k = (int)sqrt($n);\n  $found = false;\n  for ($i = 1; $i < $k; $i ++)\n  {\n    $r = $n - $i * $i - $i;\n    $x = (int)sqrt($r);\n    if ($x * ($x + 1) == $r)\n    {\n      $found = true;\n      break;\n    }\n  }\n  if ($found)\n  {\n    fprintf($fw, \"YES\");\n  }\n  else\n  {\n    fprintf($fw, \"NO\");\n  }\n  fclose($fr);\n  fclose($fw);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "binary search"], "code_uid": "6691d5734a6790023d0720db9ee91b6d", "src_uid": "245ec0831cd817714a4e5c531bffd099", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$num = trim(fgets(STDIN)) * 2;\n$Endk1 = (int)sqrt($num);\n$res = false;\n\nfor ($Startk1 = 1; $Startk1 < $Endk1; $Startk1++) {\n    $If = $num - $Startk1 * $Startk1 - $Startk1;\n    $k2 = (int)sqrt($If);\n    if ($k2 * ($k2 + 1) == $If) {\n        $res = true;\n        break;\n    }\n}\n\nif ($res)\n    echo 'YES';\nelse\n    echo 'NO';", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "binary search"], "code_uid": "01936c0e22f6754429433a793a3403ed", "src_uid": "245ec0831cd817714a4e5c531bffd099", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  $fr = fopen(\"php://stdin\", \"r\");\n  //$fw = fopen(\"php://stdout\", \"w\");\n \n  fscanf($fr, \"%d\", $n);\n  $n *= 2;\n  $k = (int)sqrt($n);\n  $found = false;\n  for ($i = 1; $i < $k; $i ++)\n  {\n    $r = $n - $i * $i - $i;\n    $x = (int)sqrt($r);\n    if ($x * ($x + 1) == $r)\n    {\n      $found = true;\n      break;\n    }\n  }\n  if ($found)\n  {\n    //fprintf($fw, \"YES\");\n    echo \"YES\";\n  }\n  else\n  {\n    //fprintf($fw, \"NO\");\n    echo \"NO\";\n  }\n  fclose($fr);\n  //fclose($fw);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "binary search"], "code_uid": "215f4e690fc2f02f3263c9031a36ee4c", "src_uid": "245ec0831cd817714a4e5c531bffd099", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$num = trim(fgets(STDIN)) * 2;\n$Endk1 = (int)sqrt($num);\n$res = false;\n\nfor ($Startk1 = 1; $Startk1 < $Endk1; $Startk1++) {\n    $If = $num - $Startk1 * $Startk1 - $Startk1;\n    $k2 = (int)sqrt($If);\n    if ($k2 * ($k2 + 1) == $If) {\n        $res = true;\n        break;\n    }\n}\n\nif ($res)\n    echo 'YES';\nelse\n    echo 'NO';\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "binary search"], "code_uid": "79897c50a8d157a42e6648164853ba33", "src_uid": "245ec0831cd817714a4e5c531bffd099", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php //rextester.com:7.0.8--codeforces.com:7.0.12\n$a=fgets(STDIN)*2;$b=false;\nfor($i=1;$i<(int)sqrt($a);$i++){\n    $c=$a-$i*$i-$i;$d=(int)sqrt($c);\n    if($d*($d+1)==$c)$b=true;\n}\nif($b)echo'YES';else echo'NO';", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "binary search"], "code_uid": "3c2fe7c6526bdd435c1f93384e8c942f", "src_uid": "245ec0831cd817714a4e5c531bffd099", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $a);\nfscanf(STDIN, \"%d\", $b);\n$c = $a + $b;\n$a = str_replace('0', '', $a);\n$b = str_replace('0', '', $b);\n$c = str_replace('0', '', $c);\nif ($a + $b == $c) {\n    echo \"YES\\n\";\n} else {\n    echo \"NO\\n\";\n}\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e93bdd06389ec3d06c0b91a70bcf99e7", "src_uid": "ac6971f4feea0662d82da8e0862031ad", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN , \"%s\",$s1);\nfscanf(STDIN , \"%s\",$s2);\n$ans1 = \"\";\n$ans2 = \"\";\n$ans3 = \"\";\n$s3 = $s1+$s2;\n$s3.=\"\";\nfor($i = 0 ; $i < strlen($s1) ; $i++){\n\nif($s1[$i] != \"0\"){\n\t$ans1.=$s1[$i];\n}\n}\nfor($i = 0 ; $i < strlen($s2) ; $i++){\n\nif($s2[$i] != \"0\"){\n\t$ans2.=$s2[$i];\n}\n}\nfor($i = 0 ; $i < strlen($s3) ; $i++){\n//echo $s3[$i].\" \";\nif($s3[$i] != \"0\"){\n\t$ans3.=$s3[$i];\n}\n}\nif(($ans1 + $ans2) == $ans3) echo \"YES\";\nelse echo \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b0a98a611658d761c9aa7da910384626", "src_uid": "ac6971f4feea0662d82da8e0862031ad", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n        $n=fgets(STDIN);\n        $m=fgets(STDIN);\n        \n        if( str_replace('0', '', $m) + str_replace('0', '', $n) == str_replace('0', '', $n + $m) )\n            echo 'YES';\n        else \n            echo 'NO';\n        \n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "d94408637b365d5f4482c9c2a4d460af", "src_uid": "ac6971f4feea0662d82da8e0862031ad", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = str_split($a);\n$d = str_split($b);\n$e = $a + $b;\n$f = str_split($e);\nfor($x = 0; $x < strlen($a); $x++)\n{\n    if($c[$x] == \"0\")\n    {\n        unset($c[$x]);\n    }\n}\nfor($x = 0; $x < strlen($b); $x++)\n{\n    if($d[$x] == \"0\")\n    {\n        unset($d[$x]);\n    }\n}\nfor($x = 0; $x < strlen($e); $x++)\n{\n    if($f[$x] == \"0\")\n    {\n        unset($f[$x]);\n    }\n}\nif(implode($c) + implode($d) == implode($f))\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4a9e80b9b1d5af63ddc04e1372a2a431", "src_uid": "ac6971f4feea0662d82da8e0862031ad", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n    function f($x)\n    {\n        $res = 0;\n        $pow = 1;\n        while($x > 0)\n        {\n            $q = $x % 10;\n            $x /= 10;\n            if($q == 0) continue;\n            $res += $q * $pow;\n            $pow *= 10;\n        }\n        return $res;\n    }\n    //$in = fopen(\"input.in\", \"r\");\n    $in = fopen(\"php://stdin\", \"r\");\n    $x = fgets($in);\n    $y = fgets($in);\n    \n    if(f($x) + f($y) == f($x + $y)) echo \"YES\";\n    else echo \"NO\";\n    \n    fclose($in);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "f3d62e0a2a05e5073c90e39b188297ba", "src_uid": "ac6971f4feea0662d82da8e0862031ad", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "#!/usr/bin/php\n<?php\n\n$string = trim(fgets(STDIN));\n$current = 0;\n\nfor ($i = 0; $i < strlen($string); $i++) {\n\tif (ord($string[$i]) <= ($current + ord('a') - 1)) {\n\n\t} else if (ord($string[$i]) == ($current + ord('a'))) {\n\t\t$current++;\n\t} else {\n\t\techo \"NO\";\n\t\texit();\n\t}\n}\n\necho \"YES\";\nexit();\n", "lang_cluster": "PHP", "tags": ["greedy", "strings", "implementation"], "code_uid": "f9ca49cc0aa653bef948d1deaf010658", "src_uid": "c4551f66a781b174f95865fa254ca972", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nerror_reporting(0);\n\nwhile($line = trim(fgets(STDIN))){\n\n$linhas[]=$line;\nif($a==1) break;\n$a++;\n}\n\n$alfabeto = array(\"a\",\"b\",\"c\",\"d\",\"e\",\"f\",\"g\",\"h\",\"i\",\"j\",\"k\",\"l\",\"m\",\"n\",\"o\",\"p\",\"q\",\"r\",\"s\",\"t\",\"u\",\"v\",\"w\",\"x\",\"y\",\"z\");\n\n$str=$linhas[0];\n\n$l=sizeof($alfabeto);\n\nfor($i=0;$i<$l;$i++) {\n\n$firstLetter = $alfabeto[$i];\n\nif($str[0]==$firstLetter) {\n\n\t$str = str_replace($firstLetter, \"\", $str);\n\t\n\n\tif(strlen($str) == 0) {\n\t\tdie(\"YES\");\t\t\n\t}\n\t\n\tcontinue;\n\n}\n\nelse die(\"NO\");\n\n}\n\n\n\n?>", "lang_cluster": "PHP", "tags": ["greedy", "strings", "implementation"], "code_uid": "44f46f02ca239f2ff8cc807667813c20", "src_uid": "c4551f66a781b174f95865fa254ca972", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$samt=trim(fgets(STDIN));\n$input=str_split(fgets(STDIN));\n$array=['q'=>'w','w'=>'e','e'=>'r','r'=>'t','t'=>'y','y'=>'u','u'=>'i','i'=>'o','o'=>'p','p'=>'a','a'=>'s','s'=>'d','d'=>'f','f'=>'g','g'=>'h','h'=>'j','j'=>'k','k'=>'l','l'=>';',';'=>'z','z'=>'x','x'=>'c','c'=>'v','v'=>'b','b'=>'n','n'=>'m','m'=>',',','=>'.','.'=>'/','/'=>'q'];\n$array2=array_flip($array);\nfor ($i=0; $i <count($input)-1;$i++)\n{ \n      if ($samt == 'L') {\n            @$input[$i]=$array[$input[$i]];\n            continue;\n      }else{\n            @$input[$i]=$array2[$input[$i]];\n      }\n}\necho implode('',$input);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "819131b274d2f4aa4233e8f992101323", "src_uid": "df49c0c257903516767fdb8ac9c2bfd6", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s1 = trim(fgets(STDIN));\n$s2 = trim(fgets(STDIN));\n$keyboard = \"qwertyuiopasdfghjkl;zxcvbnm,./\";\nfor ($i = 0; $i < strlen($s2); $i++)\n\tprintf(\"%s\",$keyboard[strpos($keyboard,$s2[$i]) - ($s1 == \"R\") + ($s1 == \"L\")]);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "3c9d3a70382e0378506b69f79c975032", "src_uid": "df49c0c257903516767fdb8ac9c2bfd6", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $dir = trim(fgets(STDIN));\n    fscanf(STDIN, \"%s\", $word);\n    $keyboard = \"qwertyuiopasdfghjkl;zxcvbnm,./\";\n    $length = strlen($word);\n    \n    for($i=0; $i<$length; $i++)\n    {\n        $pos = strpos($keyboard, $word[$i]);\n        echo $keyboard[ $pos -1 * ($dir==\"R\") + 1 * ($dir==\"L\") ];\n    }\n    \n    echo PHP_EOL;\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "3d1bf095e50a806f2929b15f1e62e03e", "src_uid": "df49c0c257903516767fdb8ac9c2bfd6", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = fopen(\"php://stdin\", \"r\");\n\n$l[0] = str_split(\"qwertyuiop\");\n$l[1] = str_split(\"asdfghjkl;\");\n$l[2] = str_split(\"zxcvbnm,./\");\n\n$m['q'] = array(0,0);\n$m['w'] = array(0,1);\n$m['e'] = array(0,2);\n$m['r'] = array(0,3);\n$m['t'] = array(0,4);\n$m['y'] = array(0,5);\n$m['u'] = array(0,6);\n$m['i'] = array(0,7);\n$m['o'] = array(0,8);\n$m['p'] = array(0,9);\n\n$m['a'] = array(1,0);\n$m['s'] = array(1,1);\n$m['d'] = array(1,2);\n$m['f'] = array(1,3);\n$m['g'] = array(1,4);\n$m['h'] = array(1,5);\n$m['j'] = array(1,6);\n$m['k'] = array(1,7);\n$m['l'] = array(1,8);\n$m[';'] = array(1,9);\n\n$m['z'] = array(2,0);\n$m['x'] = array(2,1);\n$m['c'] = array(2,2);\n$m['v'] = array(2,3);\n$m['b'] = array(2,4);\n$m['n'] = array(2,5);\n$m['m'] = array(2,6);\n$m[','] = array(2,7);\n$m['.'] = array(2,8);\n$m['/'] = array(2,9);\n\n$d = trim(fgets($in));\n\n$s = trim(fgets($in));\n\n$len = strlen($s);\n//var_dump($l);\n$a= 0;\nif($d==\"L\"){\n\t$a = 1;\n}else{\n\t$a = -1;\n}\n\nfor ($i=0; $i < $len; $i++) {\n\t$x = $m[$s[$i]][0];\n\t$y = $m[$s[$i]][1]+$a;\n\t//echo \"$x $y\\n\";\n\techo $l[$x][$y];\n}\n\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "13ac3bb8ca872c1322c31d4b314b88f5", "src_uid": "df49c0c257903516767fdb8ac9c2bfd6", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n$lines = explode(\"\\n\", file_get_contents(\"php://stdin\"));\n\n$shift = trim($lines[0]);\n$str = trim($lines[1]);\n\n\n$keysraw = str_split(\"qwertyuiopasdfghjkl;zxcvbnm,./'\");\n$keysindex = array();\n\n\nforeach($keysraw as $index=>$key) {\n    $keysindex[$key] = $index;\n}\n       \n        \nif($shift == \"L\") {\n    foreach(str_split($str) as $char) {\n        echo $keysraw[$keysindex[$char]+1];\n    }\n} \n\nif($shift == \"R\") {\n    foreach(str_split($str) as $char) {\n        echo $keysraw[$keysindex[$char]-1];\n    }\n} \necho \"\\n\";\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "342cd1eafbfd4e42bf30ccfba4fa9308", "src_uid": "df49c0c257903516767fdb8ac9c2bfd6", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split(trim(fgets(STDIN)));\n$c = array(\"w\", \"e\", \"r\", \"t\", \"y\", \"u\", \"i\", \"o\", \"p\", \"s\", \"d\", \"f\", \"g\", \"h\", \"j\", \"k\", \"l\", \";\", \"x\", \"c\", \"v\", \"b\", \"n\", \"m\", \",\", \".\", \"/\");\narray_unshift($c, \" \");\nunset($c[0]);\n$d = array(\"q\", \"w\", \"e\", \"r\", \"t\", \"y\", \"u\", \"i\", \"o\", \"a\", \"s\", \"d\", \"f\", \"g\", \"h\", \"j\", \"k\", \"l\", \"z\", \"x\", \"c\", \"v\", \"b\", \"n\", \"m\", \",\", \".\");\narray_unshift($d, \" \");\nunset($d[0]);\n$e = \"\";\nif($a == \"R\")\n{\n    for($x = 0; $x < count($b); $x++)\n    {\n        $f = array_search($b[$x], $c);\n        $e .= $d[$f];\n    }\n}\nelse\n{\n    for($x = 0; $x < count($b); $x++)\n    {\n        $f = array_search($b[$x], $d);\n        $e .= $c[$f];\n    }\n}\nprint $e;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b665ba990495c1660d66b2759c2d2906", "src_uid": "df49c0c257903516767fdb8ac9c2bfd6", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $keysstr = 'qwertyuiopasdfghjkl;zxcvbnm,./';\n    \n    $keys = str_split($keysstr);\n    \n    $t = (strpos(fgets(STDIN), \"L\")) === false ? -1 : 1;\n    \n    for ($i = 0; $i < count($keys); ++$i)    {\n        if ($i + $t >= 0 && $i + $t < count($keys))\n        $mapp[$keys[$i]] = $keys[$i + $t];\n    }\n    \n    $in = str_split(fgets(STDIN));\n    \n    $out = \"\";\n    \n    for ($i = 0; $i < count($in); ++$i)    {\n        $out .= $mapp[$in[$i]];\n    }\n    \n    echo $out;\n   \n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "246dc082535f2915bed6db3ecc42c723", "src_uid": "df49c0c257903516767fdb8ac9c2bfd6", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$dir                = fopen(\"php://stdin\", 'r');\n$contents           = stream_get_contents($dir);\n$inputs             = explode(\"\\n\",$contents);\n$stringLength       = explode(' ', $inputs[0])[0];\n$encryptedString    = $inputs[1];\necho getOriginalWord($stringLength, $encryptedString);\n\nfunction getOriginalWord($stringLength, $encryptedString)\n{\n    $originalString = $encryptedString;\n    for($d = 2; $d <= $stringLength; $d++)\n    {\n        if(($stringLength % $d) == 0)\n        {\n            $string = substr($originalString, 0, $d);\n            $newString = strrev($string);\n            $originalString =  preg_replace('/'.$string.'/', $newString, $originalString, 1);\n        }\n        \n    }\n    \n    return $originalString;\n}\n?>\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6d57034f290f292aa06340dda2072234", "src_uid": "1b0b2ee44c63cb0634cb63f2ad65cdd3", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$lenOfStr);\nfscanf(STDIN,\"%s\",$str);\n$j=0;\n$rslt=array();\nfor ($i=1; $i <=ceil($lenOfStr/2) ; $i++)\n { \n\t$divisor=$lenOfStr/$i;\n\tif($divisor==floor($divisor))\n     {  \n     \t$rslt[$j++]=$divisor;\n     }\n }\n if(count($rslt)==1)\n \techo strrev($str);\n else\n {\n \t$str2=\"\";\n \t$str3=\"\";\n    $rev=strrev($str);\n    $start=0;\n     $last=substr($rev,strlen($str)-$rslt[count($rslt)-1],$rslt[count($rslt)-1]);\n    // echo \"last=$last\";\n\n    for ($i=0; $i <count($rslt)-1 ; $i++)\n     { \n    \t$diff=$rslt[$i]-$rslt[$i+1];\n    \t$str1=substr($rev,$start,$diff);\n    \tif($i%2==0)\n    \t{\n          $str2.=$str1; \n        } \n        else\n        \t$str3.=$str1;\n\n    \t$start+=$diff;\n     }\n     if(count($rslt)%2==0)\n     echo $str2.strrev($last).strrev($str3);\n     else\n     echo $str2.$last.strrev($str3);\n\n }\n\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e9eefd0e54a98ce71afcde16a9f123a4", "src_uid": "1b0b2ee44c63cb0634cb63f2ad65cdd3", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array();\nfor($x = $a; $x > 0; $x--)\n{\n     $d = $a % $x;\n     $e = $a / $x;\n     if(($d == 0) && ($e != 1))\n     {\n          $c[count($c)] = $e;\n     }\n}\nfor($x = 0; $x < count($c); $x++)\n{\n     $f = $c[$x];\n     $g = substr($b, 0, $f);\n     $h = strrev($g);\n     $i = substr($b, $f);\n     $b = $h . $i;\n}\nprint $b;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "fa941342be26c04c9945b8eea5dbad35", "src_uid": "1b0b2ee44c63cb0634cb63f2ad65cdd3", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, '%s', $line);\n$line = str_split($line);\n$line = count(array_unique($line));\n\nif(($line % 2) == 0){\n\tprint_r(\"CHAT WITH HER!\");\n}else{\n\tprint_r(\"IGNORE HIM!\");\n}", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "f2beb1cff9354fc2069bfb59939ab38f", "src_uid": "a8c14667b94b40da087501fd4bdd7818", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$name = fgets(STDIN);\n\n$chars = array_fill(0, 26, 0);\n\nfor ($i=0; $i < strlen($name); $i++) { \n\t$chars[ord($name[$i])-97] = 1;\n}\nfor ($i=0; $i < 26; $i++) { \n\t$sum += $chars[$i];\n}\n\necho ($sum%2==0)?\"CHAT WITH HER!\":\"IGNORE HIM!\";\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "67eec583c0470211dd9fa5c6f1eceea3", "src_uid": "a8c14667b94b40da087501fd4bdd7818", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\n$newS = array();\nfor ($i=0;$i<strlen($s);$i++){\n    if (! in_array($s[$i], $newS))\n        array_push($newS, $s[$i]);\n}\necho (count($newS) % 2 == 0 ? \"CHAT WITH HER!\" : \"IGNORE HIM!\");\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "5df12ae2892bd6b4a5629c4cf8ed692d", "src_uid": "a8c14667b94b40da087501fd4bdd7818", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%s\", $s);\n\n$used = array();\n\nfor ($i = 0; $i < strlen($s); $i ++) {\n\t$used[ord($s[$i]) - 97] = true;\n}\n\n$count = 0;\nfor ($i = 0; $i < 26; $i ++) {\n\t$count += isset($used[$i]);\n}\n\nprintf(\"%s\", $count&1 ? \"IGNORE HIM!\" : \"CHAT WITH HER!\");\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "7d312476aec47d796d58edcbe274ebb9", "src_uid": "a8c14667b94b40da087501fd4bdd7818", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$name = readline(\"Command: \");\n\n\t$arr = str_split($name);\n\t$lenght_arr_one = sizeof($arr);\n\n\n\t$arr2 = (array_unique($arr)); \n\t$lenght_arr_two = sizeof($arr2);\n\n\n\tif($lenght_arr_two % 2 == 0){\n\t\techo 'CHAT WITH HER!';\n\n\t\t\n\t}else{\n\t\techo 'IGNORE HIM!';\n\n\t\t\n\t}\n", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "a816cb82a9cfdbe6f72fd60f050ab8da", "src_uid": "a8c14667b94b40da087501fd4bdd7818", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = str_split(trim(fgets(STDIN)));\n$ok = array();\n$sum = 0;\nfor($i = 97; $i<123; $i++ ){\n    $ok[$i]=0;\n}\n\nfor($i = 0; $i<count($n); $i++ ){  \n    if($ok[ord($n[$i])]==0){\n        $sum++;\n        $ok[ord($n[$i])]=1;\n    }\n}\n\nif($sum%2==0){\n    echo \"CHAT WITH HER!\";\n}\nelse\necho \"IGNORE HIM!\"; \n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "8971c64c754761274097ec37559339cb", "src_uid": "a8c14667b94b40da087501fd4bdd7818", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  \n fscanf(STDIN, \"%s\", $a);\n \n     $v = array();\n \n     for ($i = 0; $i < strlen($a); $i++)\n        $v[$a[$i]] = 1;\n        \n     if  (count($v) % 2 == 0)\n     echo (\"CHAT WITH HER!\");\n     else \n     echo (\"IGNORE HIM!\");\n    \n ?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "5e6a55f83c93609997559ec5bcb787bf", "src_uid": "a8c14667b94b40da087501fd4bdd7818", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input1 =  count(array_unique(str_split(readline())));\n\n\necho ($input1 % 2) == 0 ? 'CHAT WITH HER!' : 'IGNORE HIM!';", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "cd7e11e014f27f262f5b3f4bb5327cde", "src_uid": "a8c14667b94b40da087501fd4bdd7818", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  \n   $input = strlen(count_chars(trim(fgets(STDIN,100)),3))%2==0? 'CHAT WITH HER!' : 'IGNORE HIM!';\n\n   \techo $input;\n     \n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "f28b446f923708b358244aafade74471", "src_uid": "a8c14667b94b40da087501fd4bdd7818", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\n$arr=str_split($s);\n$arr=array_unique($arr);\nif (count($arr) % 2 == 0) {\n\techo \"CHAT WITH HER!\";\n}else{\n\techo \"IGNORE HIM!\";\n}\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "60be02eae7cd927dbeb3188a6dc85076", "src_uid": "a8c14667b94b40da087501fd4bdd7818", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$src = 'php://stdin';\n//$src = 'input.txt';\n\n$num = ((int) file_get_contents($src)) - 10;\n\n$map = array(\n\t1 => 4,\n\t2 => 4,\n\t3 => 4,\n\t4 => 4,\n\t5 => 4,\n\t6 => 4,\n\t7 => 4,\n\t8 => 4,\n\t9 => 4,\n\t10 => 15,\n\t11 => 4,\n);\n\nif (isset($map[$num])) {\n\techo $map[$num];\n} else {\n\techo 0;\n}\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "66bb02468a0ef3db143d6fcdeb6e439c", "src_uid": "5802f52caff6015f21b80872274ab16c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$IN = STDIN;\nfscanf($IN, \"%d\", $n);\n$needval = $n-10;\n\nif ($needval==10)\n  echo 15;\nelseif ((0<$needval)&&($needval<12))\n  echo 4;\nelse\n  echo 0;   \n\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e71ca2e34cddd3bc5d83abae0d552e53", "src_uid": "5802f52caff6015f21b80872274ab16c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(\"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\", \"10\", \"10\", \"10\", \"10\", \"11\");\n$d = 0;\nif($a <= 10)\n{\n    print \"0\";\n}\nelse\n{\n    $c = $a - 10;\n    for($x = 0; $x < count($b); $x++)\n    {\n        if($c == $b[$x])\n        {\n            $d++;\n        }\n    }\n    if($d < 1)\n    {\n        print \"0\";\n    }\n    elseif($d == 1)\n    {\n        print \"4\";\n    }\n    elseif($d > 1)\n    {\n        print \"15\";\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "164b34e47c4912a8aa3379e5cb4217ca", "src_uid": "5802f52caff6015f21b80872274ab16c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$nab = explode(\" \", trim(fgets(STDIN)));\n$n = $nab[0];\n$a = $nab[1];\n$b = $nab[2];\n$c = 0;\nif ($b > 0) {\n    for ($i = $a; ; $i++) {\n        $c++;\n        if ($i > $n) $i = 1;\n        if ($c == $b) {\n            $k = $i + 1;\n            if ($k == $n + 1) $k = 1;\n            break;\n        }\n    }\n} else if ($b < 0) {\n    for ($i = $a; ; $i--) {\n        $c++;\n        if ($i == 0) $i = $n;\n        if ($c == abs($b)) {\n            $k = $i - 1;\n            if ($k == 0) $k = $n;\n            break;\n        }\n    }\n} else if ($b == 0) {\n    $k = $a;\n}\nprint $k;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "7ae936cb4a0d6a0a3bfc768857d49682", "src_uid": "cd0e90042a6aca647465f1d51e6dffc4", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nif($c < 0)\n{\n     $d = abs($c);\n     if($d < $b)\n     {\n          print $b - $d;\n     }\n     elseif($d == $b)\n     {\n          print $a;\n     }\n     elseif($d > $b)\n     {\n          $d -= $b;\n          $e = $d % $a;\n          if($e == 0)\n          {\n               print $a;\n          }\n          else\n          {\n               print $a - $e;\n          }\n     }\n}\nelseif($c == 0)\n{\n     print $b;\n}\nelseif($c > 0)\n{\n     $d = $a - $b;\n     if($c <= $d)\n     {\n          print $b + $c;\n     }\n     elseif($c > $d)\n     {\n          $c -= $d;\n          $e = $c % $a;\n          if($e == 0)\n          {\n               print $a;\n          }\n          else\n          {\n               print $e;\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "8f09e4bb4ae51822faeba43e3facce4e", "src_uid": "cd0e90042a6aca647465f1d51e6dffc4", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$x = trim(fgets(STDIN));\n$x = explode(' ',$x);\n\n$n = $x[0]; \n$a = $x[1];\n$b = $x[2];\n$asdasd = $b % $n;\n$ost = ($asdasd + $n + $a) % $n;\n\nif ($ost == 0) $ost = $n;\necho $ost;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "92af8ea8c6353e4bd35470fbd8991656", "src_uid": "cd0e90042a6aca647465f1d51e6dffc4", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\nif($a == 1)\n{\n     $e = $b;\n     $b = $e;\n     if($b >= 4)\n     {\n          $c++;\n          $b -= 4;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     print $c;\n}\nelseif($a == 2)\n{\n     $e = $b;\n     $b = $e;\n     if($b >= 4)\n     {\n          $c++;\n          $b -= 4;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 3)\n     {\n          $c++;\n          $b -= 3;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     print $c;\n}\nelseif($a == 3)\n{\n     $e = $b;\n     $b = $e;\n     if($b >= 4)\n     {\n          $c++;\n          $b -= 4;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 3)\n     {\n          $c++;\n          $b -= 3;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 2)\n     {\n          $c++;\n          $b -= 2;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     print $c;\n}\nelseif($a == 4)\n{\n     $e = $b;\n     $b = $e;\n     if($b >= 4)\n     {\n          $c++;\n          $b -= 4;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 3)\n     {\n          $c++;\n          $b -= 3;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 2)\n     {\n          $c++;\n          $b -= 2;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 1)\n     {\n          $c++;\n          $b -= 1;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     print $c;\n}\nelseif($a == 5)\n{\n     $e = $b;\n     $b = $e;\n     if($b >= 4)\n     {\n          $c++;\n          $b -= 4;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 3)\n     {\n          $c++;\n          $b -= 3;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 2)\n     {\n          $c++;\n          $b -= 2;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 1)\n     {\n          $c++;\n          $b -= 1;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 5)\n     {\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     print $c;\n}\nelseif($a > 5)\n{\n     $e = $b;\n     $b = $e;\n     if($b >= 4)\n     {\n          $c++;\n          $b -= 4;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 3)\n     {\n          $c++;\n          $b -= 3;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 2)\n     {\n          $c++;\n          $b -= 2;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 1)\n     {\n          $c++;\n          $b -= 1;\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $b = $e;\n     if($b >= 5)\n     {\n          $d = floor($b / 5);\n          $c += $d;\n     }\n     $f = floor($a / 5);\n     $g = $a % 5;\n     $c *= $f;\n     if($g == 1)\n     {\n          $b = $e;\n          if($b >= 4)\n          {\n               $c++;\n               $b -= 4;\n               $d = floor($b / 5);\n               $c += $d;\n          }\n     }\n     elseif($g == 2)\n     {\n          $b = $e;\n          if($b >= 4)\n          {\n               $c++;\n               $b -= 4;\n               $d = floor($b / 5);\n               $c += $d;\n          }\n          $b = $e;\n          if($b >= 3)\n          {\n               $c++;\n               $b -= 3;\n               $d = floor($b / 5);\n               $c += $d;\n          }\n     }\n     elseif($g == 3)\n     {\n          $b = $e;\n          if($b >= 4)\n          {\n               $c++;\n               $b -= 4;\n               $d = floor($b / 5);\n               $c += $d;\n          }\n          $b = $e;\n          if($b >= 3)\n          {\n               $c++;\n               $b -= 3;\n               $d = floor($b / 5);\n               $c += $d;\n          }\n          $b = $e;\n          if($b >= 2)\n          {\n               $c++;\n               $b -= 2;\n               $d = floor($b / 5);\n               $c += $d;\n          }\n     }\n     elseif($g == 4)\n     {\n          $b = $e;\n          if($b >= 4)\n          {\n               $c++;\n               $b -= 4;\n               $d = floor($b / 5);\n               $c += $d;\n          }\n          $b = $e;\n          if($b >= 3)\n          {\n               $c++;\n               $b -= 3;\n               $d = floor($b / 5);\n               $c += $d;\n          }\n          $b = $e;\n          if($b >= 2)\n          {\n               $c++;\n               $b -= 2;\n               $d = floor($b / 5);\n               $c += $d;\n          }\n          $b = $e;\n          if($b >= 1)\n          {\n               $c++;\n               $b -= 1;\n               $d = floor($b / 5);\n               $c += $d;\n          }\n     }\n     print $c;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "number theory"], "code_uid": "6bf99713ab89d2aa92be6c5b7edc0f8a", "src_uid": "df0879635b59e141c839d9599abd77d2", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$fp=fopen(\"php://stdin\",\"r\");\nsscanf(fgets($fp), '%d %d', $_n, $_m);\n$n = min($_n, $_m);\n$m = max($_n, $_m);\n$cnt = $n * floor($m/5) + ($m % 5)*floor($n/5);\n\nfor($i = 1; $i <= $n%5; ++$i) {\n\tfor($j = 1; $j <= $m%5; ++$j) {\n\t\tif (($i + $j) % 5 === 0) {\n\t\t\t++$cnt;\n\t\t}\n\t}\t\n}\necho $cnt;\n", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "number theory"], "code_uid": "a68a733ef8c2b2ef3943af190f2ae6dc", "src_uid": "df0879635b59e141c839d9599abd77d2", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d %d\",$_n,$_m);\n$n = min($_n, $_m);\n$m = max($_n, $_m);\n$cnt = $n * floor($m/5) + ($m % 5)*floor($n/5);\n\nfor($i = 1; $i <= $n%5; ++$i) {\n\tfor($j = 1; $j <= $m%5; ++$j) {\n\t\tif (($i + $j) % 5 === 0) {\n\t\t\t++$cnt;\n\t\t}\n\t}\t\n}\necho $cnt;\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "number theory"], "code_uid": "4a25702bcd9a08012114aca25057f1c2", "src_uid": "df0879635b59e141c839d9599abd77d2", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\n$values = array_map('intval', explode(' ',trim(fgets(STDIN))));\n$k = $values[0];\n$n = $values[1];\n$s = $values[2];\n$p = $values[3];\n\n$spp = ceil($n / $s);\n$s = $spp * $k;\n$packs = ceil($s / $p);\n\necho $packs.\"\\n\";", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "88b5fc260f52f13372846cd718bff6c7", "src_uid": "73f0c7cfc06a9b04e4766d6aa61fc780", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = ceil($b / $c);\n$f = $a * $e;\n$g = ceil($f / $d);\nprint $g;\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "68ba9f66644f68dbe66fbb5b699cddba", "src_uid": "73f0c7cfc06a9b04e4766d6aa61fc780", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\n$b = array_sum($a);\n$c = $b % 5;\n$d = $b / 5;\nif($b == 0)\n{\n    print \"-1\";\n}\nelseif($c == 0)\n{\n    print $d;\n}\nelse\n{\n    print \"-1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "bc68583a4adc6b46980228c5999a8cbe", "src_uid": "af1ec6a6fc1f2360506fc8a34e3dcd20", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$input = explode(\" \",trim(fgets(STDIN)));\n\t$sum = array_sum($input);\n\tif($sum%5==0 && $sum>0){\n\t\techo $sum/5;\n\t}\n\telse{\n\t\techo \"-1\";\n\t}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "2165e1ef736a2c4e8bd73560940159f2", "src_uid": "af1ec6a6fc1f2360506fc8a34e3dcd20", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, '%d %d %d %d %d', $i[0], $i[1],$i[2], $i[3], $i[4]);\n\n$sum = 0;\nforeach ($i as $e) $sum += $e;\n\necho $sum > 0 && !($sum % 5) ? $sum / 5 : '-1';\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "654409e10c2b0865d6e52d802e5fe168", "src_uid": "af1ec6a6fc1f2360506fc8a34e3dcd20", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$line = fgets(STDIN);\n$ex = explode(\" \",$line);\n\n$sum = $ex[0] + $ex[1] + $ex[2] + $ex[3] + $ex[4];\n\nif($sum % 5 == 0 && $sum > 0){\n    echo $sum / 5;\n}else{\n    echo -1;\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6b9ff799fb25e60c722071b18d0789ef", "src_uid": "af1ec6a6fc1f2360506fc8a34e3dcd20", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = rtrim(fgets(STDIN));\n$raw   = explode(' ', $input);\n\n$a = (int)$raw[0];\n$b = (int)$raw[1];\n$c = (int)$raw[2];\n$d = (int)$raw[3];\n$e = (int)$raw[4];\n\n$count = $a + $b + $c + $d + $e;\n\nif ($count % 5 != 0 || $count == 0) {\n    echo -1 . PHP_EOL;\n} else {\n    echo $count / 5 . PHP_EOL;\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1ecfab99d4684d8c590026de1800bdf7", "src_uid": "af1ec6a6fc1f2360506fc8a34e3dcd20", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d %d %d %d %d\\n\", $n1, $n2, $n3, $n4, $n5);\n    $s = $n1 + $n2 + $n3 + $n4 + $n5;\n    \n    if ($s > 0 && $s % 5 == 0)\n    {\n        fprintf(STDOUT, \"%d\\n\", $s / 5);\n    }\n    else {\n        fprintf(STDOUT, \"-1\\n\");\n    }\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c01b732da7420b51a1f4f1697b2e7875", "src_uid": "af1ec6a6fc1f2360506fc8a34e3dcd20", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$player = explode(\" \",trim(fgets(STDIN)));\n$summ =0;\nfor ($i=0;$i<count($player);$i++)\n{\n    $summ+=$player[$i];\n}\nif ($summ%5==0&&$summ!=0)echo $summ/5;\nelse echo -1;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "862c298676ef81c79bc53f7eca04a9ec", "src_uid": "af1ec6a6fc1f2360506fc8a34e3dcd20", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = explode(\" \", trim(fgets(STDIN)));\n$sum = array_sum($input);\necho (($sum%5!=0 || $sum==0) ? -1 : ($sum/5));\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "2b854a87b95dc517340f034d10fb2255", "src_uid": "af1ec6a6fc1f2360506fc8a34e3dcd20", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\n$b = array_sum($a);\n$c = 0;\nfor($x = 0; $x < count($a) - 2; $x++)\n{\n     for($y = $x + 1; $y < count($a) - 1; $y++)\n     {\n          for($z = $y + 1; $z < count($a); $z++)\n          {\n               $d = $a[$x] + $a[$y] + $a[$z];\n               $e = $b - $d;\n               if($d == $e)\n               {\n                    $c = 1;\n                    break;\n               }\n          }\n          if($c == 1)\n          {\n               break;\n          }\n     }\n     if($c == 1)\n     {\n          break;\n     }\n}\nif($c == 0)\n{\n     print \"NO\";\n}\nelse\n{\n     print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "28a4239a06fb4f60f35d884e0457e2cb", "src_uid": "2acf686862a34c337d1d2cbc0ac3fd11", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\t$s = fscanf(STDIN, \"%d %d %d\");\n\t$location = Array((int)$s[0]/2, (int)$s[0]/2+1);\n    echo (in_array($s[1], $location)&&in_array($s[2], $location))?\"NO\":\"YES\";\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "af5f90557ddc60d2ea9af6d181de4756", "src_uid": "dc891d57bcdad3108dcb4ccf9c798789", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = $a / 2;\nif((($b == $d) && ($c == $d)) || (($b == $d) && ($c == $d + 1)) || (($b == $d + 1) && ($c == $d)) || (($b == $d + 1) && ($c == $d + 1)))\n{\n    print \"NO\";\n}\nelse\n{\n    print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "c5e5d1fb740408e61ec030f7b6e9b017", "src_uid": "dc891d57bcdad3108dcb4ccf9c798789", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$longitud = fgets(STDIN);\n$string = fgets(STDIN);\n$values = str_split($string);\n$contador = 0;\n$aux = 0;\nfor ($x = 0; $x < $longitud; $x++) {\n    if ($values[$x] == 'x') {\n        $aux++;\n        $contador++;\n    }\n\n    if (($values[$x] != \"x\")   && ($aux >= 3)) {\n        $contador = $contador - 2;\n    }\n\n    if (($values[$x] != \"x\")  &&   $aux < 3) {\n        $contador = $contador - $aux;\n    }\n    if (($values[$x] != \"x\")) {\n        $aux = 0;\n    }\n\n}\nif ($aux < 3 && $values[$longitud - 1] == \"x\") {\n    $contador = $contador - $aux;\n}\n\nif ($aux >= 3 && $values[$longitud - 1] == \"x\") {\n    $contador = $contador - 2;\n}\n\necho $contador;\n", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "e3a2e48452665b5bc1b8d702b78c4e05", "src_uid": "8de14db41d0acee116bd5d8079cb2b02", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=fgets(STDIN);\n$input=str_split(fgets(STDIN));\n$r=0;\nfor ($i=0; $i < $n ; $i++) { \n      if($input[$i] == 'x' and $input[$i+1] == 'x' and $input[$i+2] == 'x'){    \n            $r++;\n      }\n}\necho $r;", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "e4bd55887ca2a6226e3f0ea6d9a10c4c", "src_uid": "8de14db41d0acee116bd5d8079cb2b02", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\nfscanf(STDIN, \"%s\", $s);\n$x = 0;\n$c = 0;\nfor($i=0;$i<$n;$i++){\n\tif ($s[$i] == \"x\")\n\t\t$c++;\n\telse\n\t\t$c = 0;\n\tif ($c > 2)\n\t\t$x++;\n}\necho $x;\n?>", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "9088b08eb6712f78544985aa853e17ba", "src_uid": "8de14db41d0acee116bd5d8079cb2b02", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%d\", $data1);\nfscanf(STDIN, \"%s\", $data2);\n\n$main = new MainClass;\n\necho $main->solution($data1, $data2);\n\n// End of interface\n\n\nclass MainClass {\n\t// 978В.File name\n\t//public $problemLink = 'https://codeforces.com/problemset/problem/978/B';\n\t//public $submissionLink = '';\n\n\tpublic function solution($n, $string)\n\t{\n\t\t$res=0;\n\t\t$counter=0;\n\t\tfor ($i=0; $i<$n; $i++){\n\t\t\tif ($string[$i] === 'x'){\n\t\t\t\t$counter++;\n\t\t\t} else {\n\t\t\t\t$counter=0;\n\t\t\t}\n\t\t\tif($counter>2){\n\t\t\t\t$res++;\n\t\t\t}\n\t\t}\n\t\treturn $res;\n\t}\n}\n", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "5ebecea7ac9bb5958365c6f6ec28c716", "src_uid": "8de14db41d0acee116bd5d8079cb2b02", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\nfscanf(STDIN, \"%s\", $s);\n$o = $s;\nwhile (strpos($o, \"xxx\") !== false){\n\t$o = str_replace(\"xxx\", \"xx\", $o);\n}\n\necho strlen($s) - strlen($o);\n?>", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "1c899e586d4d6ca988ff2487342b99cd", "src_uid": "8de14db41d0acee116bd5d8079cb2b02", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$data1 = (int) trim(fgets(STDIN));\n$data2 = str_split(trim(fgets(STDIN)), 1);\n\n\n$main = new MainClass;\n\necho $main->solution($data1, $data2);\n\n// End of interface\n\n\nclass MainClass {\n\t// 978В.File name\n\t//public $problemLink = 'https://codeforces.com/problemset/problem/978/B';\n\t//public $submissionLink = '';\n\n\tpublic function solution($n, $arrayOfStrings)\n\t{\n\t\t$res=0;\n\t\t$counter=0;\n\t\tforeach ($arrayOfStrings as $value){\n\t\t\tif ($value === 'x'){\n\t\t\t\t$counter++;\n\t\t\t} else {\n\t\t\t\t$counter=0;\n\t\t\t}\n\t\t\tif($counter>2){\n\t\t\t\t$res++;\n\t\t\t}\n\t\t}\n\t\treturn $res;\n\t}\n}\n", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "ce81467586216d02bef7db5445c1436a", "src_uid": "8de14db41d0acee116bd5d8079cb2b02", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$data1 = (int) trim(fgets(STDIN));\n$data2 = trim(fgets(STDIN));\n\n$main = new MainClass;\n\necho $main->solution($data1, $data2);\n\n// End of interface\n\n\nclass MainClass {\n\t// 978В.File name\n\t//public $problemLink = 'https://codeforces.com/problemset/problem/978/B';\n\t//public $submissionLink = '';\n\n\tpublic function solution($n, $string)\n\t{\n\t\t$res=0;\n\t\tfor ($i=0; $i<$n; $i++){\n\t\t\tif (substr($string, $i-1, 3) === 'xxx'){\n\t\t\t\t$res++;\n\t\t\t}\n\t\t}\n\t\treturn $res;\n\t}\n}\n", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "58a01c3e14a9c372f71a669864f57b43", "src_uid": "8de14db41d0acee116bd5d8079cb2b02", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = intval(trim(fgets(STDIN)));\n$line = trim(fgets(STDIN));\n$orig = $line;\nwhile(strpos($line,\"xxx\") !== false){\n    $line = str_replace(\"xxx\",\"xx\",$line);\n}\necho abs(strlen($line) - strlen($orig)) . PHP_EOL;\nexit;", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "e18756e201610a8abc7e024de0f67766", "src_uid": "8de14db41d0acee116bd5d8079cb2b02", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$count = (int) trim(fgets(STDIN));\n$string = trim(fgets(STDIN));\n\n$result = [];\n$sum = 0;\n$total = 0;\nfor ($i = 0; $i < $count; $i++) {\n    if ($string[$i] == 'x') {\n        $sum++;\n    } else {\n        if ($sum > 2) {\n            $total += $sum - 2;\n        }\n        $sum = 0;\n    }\n}\nif ($sum > 2) {\n    $total += $sum - 2;\n}\n\necho $total;", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "4d98566dcc7622fa984b4639ae0e0283", "src_uid": "8de14db41d0acee116bd5d8079cb2b02", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = \" \" . trim(fgets(STDIN));\n$c = 0;\nwhile(TRUE)\n{\n     $d = strpos($b, \"xxx\");\n     if($d == TRUE)\n     {\n          $c++;\n          $b = str_split($b);\n          unset($b[$d]);\n          $b = implode($b);\n     }\n     else\n     {\n          break;\n     }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "b9b0dabf901de9372d6625df5cd88c74", "src_uid": "8de14db41d0acee116bd5d8079cb2b02", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nif($b == 0)\n{\n    $c = $a; // max\n}\nelse\n{\n    $c = $a + $b - 1; // max\n}\nif($b >= $a)\n{\n    $d = $a + ($b - $a); // min\n}\nelse\n{\n    $d = $a; // min\n}\nif(($a == 0) && ($b != 0))\n{\n    print \"Impossible\";\n}\nelse\n{\n    print $d . \" \" . $c;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "69ad9ee35f08a586659ba53c66b474eb", "src_uid": "1e865eda33afe09302bda9077d613763", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php //http://rextester.com php 7.0.8\nlist($grown_ups,$children)=explode(' ',trim(fgets(STDIN)));\nif($grown_ups<1&$children>0){echo'Impossible';return;}\n$max=$grown_ups+$children-1;\nif($children==0)$max=$grown_ups;\necho max($grown_ups,$children).' '.$max;", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "710dff8b52386f9c033f443f55947389", "src_uid": "1e865eda33afe09302bda9077d613763", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php //http://rextester.com php 7.0.8\nlist($Parent,$Childs)=explode(' ',trim(fgets(STDIN)));\nif($Parent<1&$Childs>0){echo'Impossible';return;}\n$min=$Parent;\nif($Childs>$Parent){$min=$Childs;}\n$max=$Parent;\nif($Childs>0)$max+=$Childs-1;\necho $min.' '.$max;", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "8a2a9f4252a08c19cee19c5a9e774123", "src_uid": "1e865eda33afe09302bda9077d613763", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php //http://rextester.com php 7.0.8\nlist($a,$b)=explode(' ',trim(fgets(STDIN)));\nif($a<1&$b>0){echo'Impossible';return;}\n$d=$a+$b-1;\nif($b==0)$d=$a;\necho max($a,$b).' '.$d;", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "97778c5cf890cd4b0f8705b54b526b58", "src_uid": "1e865eda33afe09302bda9077d613763", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nif($b == 0)\n{\n    $c = $a; // max\n}\nelse\n{\n    $c = $a + $b - 1; // max\n}\nif($b >= $a)\n{\n    $d = $a + ($b - $a); // min\n}\nelse\n{\n    $d = $a; // min\n}\nif(($a == 0) && ($b != 0))\n{\n    print \"Impossible\";\n}\nelse\n{\n    print $d . \" \" . $c;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "fc3ed66e287a1179bb0a916337f8eebd", "src_uid": "1e865eda33afe09302bda9077d613763", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($Parent, $Childs) = explode(' ', trim(fgets(STDIN)));\n\nif ($Parent < 1 && $Childs > 0) {\n    echo 'Impossible';\n    return;\n}\n\n$min = $Parent;\nif ($Childs - $Parent > 0) $min += $Childs - $Parent;\n\n$max = $Parent;\nif ($Childs > 0) $max += $Childs - 1;\n\necho $min . ' ' . $max;", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "2f425ef746b3472de10515d5279243dc", "src_uid": "1e865eda33afe09302bda9077d613763", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($Parent, $Childs) = explode(' ', trim(fgets(STDIN)));\n\nif ($Childs == 0)\n    $max = $Parent;\nelse\n    $max = $Parent + $Childs - 1;\nif ($Childs >= $Parent)\n    $min = $Parent + ($Childs - $Parent);\nelse\n    $min = $Parent;\n\nif ($Parent == 0 && $Childs != 0)\n    echo \"Impossible\";\nelse\n    print $min . ' ' . $max;", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "041a5b87322a2607bd26defe96f7d1b9", "src_uid": "1e865eda33afe09302bda9077d613763", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php //http://rextester.com php 7.0.8\nlist($a,$b)=explode(' ',trim(fgets(STDIN)));\nif($a<1&$b>0){echo'Impossible';return;}\n$d=$a;\nif($b>0)$d+=$b-1;\necho max($a,$b).' '.$d;", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "5981ba9f952ffea3c17efcbd1e62f77d", "src_uid": "1e865eda33afe09302bda9077d613763", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php //rextester.com:7.0.8--codeforces:7.0.12\nlist($a,$b)=explode(' ',trim(fgets(STDIN)));\nif($a<1&$b>0){echo'Impossible';return;}\nif($b!=0)$d=$a+$b-1;else$d=$a;echo max($a,$b).' '.$d;", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "dbfa901b8aba4fe3c982d591c14687ff", "src_uid": "1e865eda33afe09302bda9077d613763", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php //http://rextester.com php 7.0.8\nlist($a,$b)=explode(' ',trim(fgets(STDIN)));\nif($a<1&$b>0){echo'Impossible';return;}\n$c=$a;\nif($b>$a){$c=$b;}\n$d=$a;\nif($b>0)$d+=$b-1;\necho$c.' '.$d;", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "ac31f63282c7ef5f9655dea376b70921", "src_uid": "1e865eda33afe09302bda9077d613763", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile(fscanf(STDIN,\"%d %d\",$n, $x)){\n    $sum = 0;\n    for($i=1;$i<=sqrt($x);$i++){\n        if($x%$i == 0){\n            if($x/$i <= $n){\n                if($x/$i != $i)\n                    $sum +=2;\n                else \n                    $sum ++;\n            }\n        }\n        if($i == $n)\n            break;\n    }\n    echo $sum.\"\\n\";\n}", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "2adaa9cd76113f18da1af47f1e70b93e", "src_uid": "c4b139eadca94201596f1305b2f76496", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\nfor($x = 1; $x <= $a; $x++)\n{\n    $d = $a * $x;\n    if($d >= $b)\n    {\n        $e = $b % $x;\n        if($e == 0)\n        {\n            $c++;\n        }\n    }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "2b4f556d05f62b13806c36fece16a73f", "src_uid": "c4b139eadca94201596f1305b2f76496", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    list( $n, $x ) = explode(\" \", trim(fgets(STDIN)));\n    $arr = array();\n    for($i=1; $i<=$x && $i<=sqrt($x); $i++)\n        if( $x % $i == 0 )\n            array_push($arr, $i);\n    $buffer = $used = array();\n    foreach($arr as $t)\n        array_push($buffer, $t, $x / $t);\n    unset($arr);\n    sort($buffer);\n    $arr = array();\n    foreach($buffer as $t)\n    {\n        if(!$used[$t])\n            array_push($arr, $t);\n        $used[$t]++;\n    }\n    $cnt = 0;\n    for($i=0; $i<sizeof($arr)/2; $i++)\n        if( $arr[$i] <= $n && $x / $arr[$i] <= $n )\n            $cnt += 1 + ($x / $arr[$i] != $arr[$i]);\n    echo $cnt . PHP_EOL;\n?>", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "1a799b65159e007c1bcda7334d301dc4", "src_uid": "c4b139eadca94201596f1305b2f76496", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$file = fopen('input.in', 'r');\n$file = STDIN;\nlist($n, $x) = explode(\" \", trim(fgets($file)));\n$r = 0;\nfor ($i = 1; $i <= $n; $i++) {\n    if ($x%$i ==0 && $x/$i<=$n) {\n        $r++;\n    }\n}\necho $r;", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "0402af0bea74a05f964a99b4b83fbad1", "src_uid": "c4b139eadca94201596f1305b2f76496", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e) = explode(\" \", trim(fgets(STDIN)));\n$f = $a - $b;\n$g = $b / $c; // время до светофора\nif($g < $d)\n{\n    print number_format($a / $c, 8, \".\", \"\");\n}\nelseif(($g >= $d) && ($g <= $d + $e))\n{\n    $h = $d + $e;\n    $i = $h - $g;\n    print number_format(($a / $c) + $i, 8, \".\", \"\");\n}\nelseif($g > ($d + $e))\n{\n    $h = $g % ($d + $e);\n    print number_format(($a / $c) + $h, 8, \".\", \"\");\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "217273b406e852de2d975eb58352156a", "src_uid": "e4a4affb439365c843c9f9828d81b42c", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$EPS = 1e-9;\nfscanf(STDIN, \"%d %d %d %d %d\", $l, $d, $v, $g, $r);\n\n$T = $g + $r;\n$t = $d / $v;\n$t -= $T * floor($t / $T);\nprintf(\"%.6f\\n\", $l / $v + ($t > $g - $EPS ? $T - $t : 0.0));\n\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b2f188b7295185867f0cd778c4ddfbe3", "src_uid": "e4a4affb439365c843c9f9828d81b42c", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(1 => 1, 3 => 1, 5 => 1, 7 => 1, 9 => 1);\n$c = array(\"a\" => 1, \"e\" => 1, \"i\" => 1, \"o\" => 1, \"u\" => 1);\n$d = 0;\nfor($x = 0; $x < strlen($a); $x++)\n{\n     if(($b[$a[$x]] == TRUE) || ($c[$a[$x]] == TRUE))\n     {\n          $d++;\n     }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "aa80b463ffe6d46ad407cc555d159d8a", "src_uid": "b4af2b8a7e9844bf58ad3410c2cb5223", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = str_split($a);\n$d = str_split($b);\n$e = 0;\nfor($x = 0; $x < count($d); $x++)\n{\n    for($y = 0; $y < count($c); $y++)\n    {\n        if($d[$x] == $c[$y])\n        {\n            $e++;\n            $c[$y] = \"0\";\n            break;\n        }\n    }\n}\n$f = 0;\n$h = array();\nfor($x = 0; $x < strlen($b); $x++)\n{\n    $g = strpos($a, $d[$x], $f);\n    array_push($h, $g);\n    $g++;\n    $f = $g;\n}\n$i = 0;\nfor($x = 0; $x < count($h) - 1; $x++)\n{\n    if($h[$x] > $h[$x + 1])\n    {\n        $i = 1;\n    }\n}\nif($e != count($d))\n{\n    print \"need tree\";\n}\nelseif(($e == count($d)) && ($e != count($c)) && ($i != 0))\n{\n    print \"both\";\n}\nelseif(($e == count($d)) && ($i != 0))\n{\n    print \"array\";\n}\nelseif(($e == count($d)) && ($i == 0))\n{\n    print \"automaton\";\n}\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "5a6633890f4494b3aba717321850cc47", "src_uid": "edb9d51e009a59a340d7d589bb335c14", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\n//$a = explode(\" \",trim(fgets($f)));\n\n$s = trim(fgets($f));\n$t = trim(fgets($f));\n\n$automat = false;\n$array = false;\n\n$r = str_split($t);\n$pattern = '/.*'.implode('.*',$r).'.*/U';\n\n//echo $pattern;\n\n$result = preg_match($pattern,$s,$match);\n\nif (isset($match[0])){\n    echo (\"automaton\");\n    exit;\n}\n\n\n$s = str_split($s);\nsort($s);\n$s = implode('',$s);\n\n$t = str_split($t);\nsort($t);\n$t = implode('',$t);\n\n//var_dump($s,$t);\n\n$r = str_split($t);\n$pattern = '/.*'.implode('.*',$r).'.*/U';\n$result = preg_match($pattern,$s,$match);\n\n//var_dump($match);\n\nif (isset($match[0])){\n    if ($t==$s){\n        echo \"array\";\n    } else {\n        echo \"both\";\n    }\n    exit;\n}\necho \"need tree\";\n\n\n\n\n\n\n\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "39bc83ad0a74fe7cf3280dd1f73c33e5", "src_uid": "edb9d51e009a59a340d7d589bb335c14", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$a -= 3;\nif(($a % 2 == 0) && ($a / 2 > 0))\n{\n     $a += 3;\n     print \"1 \" . ($a - 3) / 2;\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "a4aad2f8a3caf073c36fdb7e01b6a7cd", "src_uid": "3ff1c25a1026c90aeb14d148d7fb96ba", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n \n$stdin = fopen('php://stdin', 'r');\n$stdout = fopen('php://stdout', 'w');\n \nfscanf($stdin, \"%d%d%d\", $k, $n, $w);\n//fscanf($stdin, \"%d\", $n);\n//fscanf($stdin, \"%d\", $w);\n \n/*echo $k.\"\\n\";\necho $n;\necho $w;\n*/\n$sum = 0;\n \nfor($i=1; $i<=$w ;$i++){\n\t$sum += $i*$k;\n}\n\nif($n > $sum){\n    fwrite($stdout, 0);  \n}else{\n    fwrite($stdout,$sum - $n);\n}\n\nfclose($stdin);\nfclose($stdout);\n \n ?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "df98bfc19dd1b5908572d9ec0049e5bd", "src_uid": "e87d9798107734a885fd8263e1431347", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($k, $n, $w) = sscanf(fgets(STDIN), '%d %d %d');\n\n$s = ($k + $w*$k) * $w / 2;\n\nif ($s > $n) {\n\techo $s - $n;\n} else {\n\techo 0;\n}", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "e2d36a47b7e058e024c49f4b0b253a1a", "src_uid": "e87d9798107734a885fd8263e1431347", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//First Get The Input.\n$input = file_get_contents(\"php://stdin\");\n\nfunction find_how_much ($k,$m,$a) {\n    \n    $sum = 0;\n    for($i = 1;$i <= $a;$i++) {\n        \n        $sum += ($k * $i);\n        \n    }\n    \n    if($sum - $m >= 0) {\n        \n        return ($sum - $m);\n        \n    }else {\n        \n        return 0;\n        \n    }\n    \n}\n\n//Explode The Given Input.\n$input = explode(\" \",$input);\n\necho find_how_much($input[0],$input[1],$input[2]);\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "31b45ebfd80376dc02f6819f38e407fd", "src_uid": "e87d9798107734a885fd8263e1431347", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = explode(\" \",rtrim(fgets(STDIN)));\n$k=$input[0];\n$n=$input[1];\n$w=$input[2];\n$total=0;\nfor($x=1; $x<=$w; $x++){\n   $total=$total+($k*$x);\n}\nif($total>$n){\n  echo $total-$n;\n}else{\n  echo \"0\";\n}", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "544ba93c9f588f021d3325431090187c", "src_uid": "e87d9798107734a885fd8263e1431347", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  fscanf(STDIN, \"%d %d %d\\n\", $k, $w, $n);\n  $all = $k * $n * ($n + 1) / 2;\n  echo max(0, $all - $w);", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "d0a4420c3f205947dcaeadae3dcad223", "src_uid": "e87d9798107734a885fd8263e1431347", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nclass SolierAndBananas{\n    public function index($k, $n, $w){\n        $sum = 0;\n        for ($i = 1; $i <= $w; $i++){\n            $sum += $k * $i;\n        }\n        $borrow = $sum - $n;\n        if ($borrow >= 0){\n            return $sum - $n . \"\\n\";\n        } else {\n            return \"0\\n\";\n        }\n        \n    }\n}\n\n$obj = new SolierAndBananas();\nfscanf(STDIN, \"%d %d %d\", $k, $n, $w);\necho $obj->index($k, $n, $w);", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "2877948d52b5279dae7696ba827bceec", "src_uid": "e87d9798107734a885fd8263e1431347", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$i=1;\n$hitung=0;\n$a = explode(\" \", trim(fgets(STDIN)));\nwhile ($i <= $a[2]) {\n\t$hitung=$hitung+($i * $a[0]);\n\t$i++;\n}\nif($hitung > $a[1]){\n\techo $hitung-$a[1];\n}else{\n\techo 0;\n}\n\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "372cb7ca1325dae9c0434dfbfc57cfde", "src_uid": "e87d9798107734a885fd8263e1431347", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$nr = explode(\" \",trim(fgets(STDIN)));\n$sum=0;\n\nfor($i=1;$i<=$nr[2];$i++){\n  $sum += $nr[0] * $i;\n}\nif($sum > $nr[1])\n  echo $sum - $nr[1];\nelse\n  echo 0;", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "1a56908b91aa9218d93bf0cacb8b0f6d", "src_uid": "e87d9798107734a885fd8263e1431347", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = explode(' ', readline());\n$price = 0;\nfor($i = 1; $i <= $input[2]; $i++) \n    $price += ($i * $input[0]);\necho $price > $input[1] ? $price - $input[1] : 0;", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "2802c5d120e1b7f0229b25cf99ff4c65", "src_uid": "e87d9798107734a885fd8263e1431347", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = readline();\n$input_new = explode(' ', $input);\n$price_banan = $input_new[0];\n$have_many = $input_new[1];\n$max_banan = $input_new[2];\n$potracheno=0;\n\n\nfor ($i=0; $i<$max_banan; $i++) {\n       $potracheno = $potracheno + $price_banan * ($i+1);\n}      $need_many = $potracheno - $have_many;\n     if ($need_many <=0) {\n         echo '0';\n     }\n     else {\n         echo $need_many;\n     }", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "a424be029677d119b0ef77fbc935962d", "src_uid": "e87d9798107734a885fd8263e1431347", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = range(1, $a);\n$b = array_merge($b, $b);\n$b = array_merge($b, $b);\n$c = array();\n$d = array();\n$e = 0;\nfor($x = 1; $x <= 64; $x++)\n{\n    $c = array_merge($c, $b);\n}\nfor($x = 0; $x < count($c); $x++)\n{\n    $e += $x;\n    if($c[$e] == \"\")\n    {\n        break;\n    }\n    else\n    {\n        $d[$x] = $c[$e];\n    }\n}\n$f = array_unique($d);\nif(count($f) == $a)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "9519d2cd149a3861239c33d26461db59", "src_uid": "4bd174a997707ed3a368bd0f2424590f", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tfscanf(STDIN, \"%d\",$n);\n\tfor($i=0;$i<$n;$i++)\n\t\t$points[$i*($i+1)/2 % $n]=1;\n\techo $n==count($points)?\"YES\":\"NO\";\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "2625db3bad47499f6fdc373b09a072cb", "src_uid": "4bd174a997707ed3a368bd0f2424590f", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction findCanJump($nk,$nchar){\n    $nk = explode(\" \",$nk);\n   // $nchar = explode('',$nchar);\n    $n = $nk[0];\n    $k = $nk[1];           \n    //echo $n;\n    $len =$n;\n    $pos_T = strpos($nchar,'T');\n    $pos_G = strpos($nchar,'G');\n    $canJump = 0;\n    if($pos_G<$pos_T){\n        while($pos_G<=$pos_T){\n\n            if($pos_G==$pos_T){\n                $canJump =1;\n                echo 'YES';\n                break;\n            } \n            $pos_G = $pos_G+$k;\n            if(($pos_G>$pos_T && $canJump==0) ||($pos_G<$len && $nchar[$pos_G]=='#'))\n              {\n                  echo 'NO';break;\n              } \n        }\n        \n    }else{\n        while($pos_G>=$pos_T){\n\n            if($pos_G==$pos_T){\n                $canJump =1;\n                echo 'YES';\n                break;\n            } \n            $pos_G = $pos_G-$k;\n            if(($pos_G<$pos_T && $canJump==0) ||($pos_G>-1 && $nchar[$pos_G]=='#'))\n              {\n                  echo 'NO';break;\n              }  \n            \n        }\n    }\n}\n\n\n$nk = trim(fgets(STDIN));\n$nchar = trim(fgets(STDIN));\n \nfindCanJump($nk,$nchar);\n\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "2bdf3ee02665bc2a0475988c4f689fd4", "src_uid": "189a9b5ce669bdb04b9d371d74a5dd41", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = trim(fgets(STDIN));\nfor($x = 0; $x < $a; $x++)\n{\n     if($c[$x] == \"G\")\n     {\n          break;\n     }\n}\n$d = 0;\nfor($y = $x; $y >= 0; $y -= $b)\n{\n     if(($c[$y] == FALSE) || ($c[$y] == \"#\"))\n     {\n          break;\n     }\n     elseif($c[$y] == \"T\")\n     {\n          $d = 1;\n     }\n}\nfor($y = $x; $y < $a; $y += $b)\n{\n     if(($c[$y] == FALSE) || ($c[$y] == \"#\"))\n     {\n          break;\n     }\n     elseif($c[$y] == \"T\")\n     {\n          $d = 1;\n     }\n}\nif($d == 1)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "ccc844b015680a66f7d3f817a88e60e7", "src_uid": "189a9b5ce669bdb04b9d371d74a5dd41", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// 263A \t Красивая матрица \n\n$in = fopen(\"php://stdin\", 'r');\n\nfor ($k=1; $k < 6; $k++) { \n    $input_line = fgets($in);\n    $n = strpos($input_line, '1');\n    if ($n !== false) {\n        $i = $k;\n        $j = $n - ($n / 2) + 1;     \n    }\n}\n\n$out = 0;\n\nif ($i < 3) {\n    $out = (3 - $i);\n} else {\n    $out = ($i - 3);\n}\n\nif ($j < 3) {\n    $out += (3 - $j);\n} else {\n    $out += ($j - 3);\n}\n\necho $out;\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b708f47dbe7661b3029955ee1c5d589f", "src_uid": "8ba7cedc3f6ae478a0bb3f902440c8e9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfor($i=0;$i<5;$i++)\n{\n $line=trim(fgets(STDIN));\n $mat[$i]=explode(\" \", $line);\n}\n\nfor($i=0;$i<5;$i++)\n{\n\tfor($j=0;$j<5;$j++)\n\t{\n\t\tif($mat[$i][$j]==1)\n\t\t{\n\t\t\t$index=$i.$j;\n\t\t\t$sum=$i+$j;\n\t\t\tbreak;\n\t\t}\n\t}\n}\nif($index==00||$index==04||$index==40||$index==44)\necho \"4\";\nelseif ($index==12||$index==21||$index==23||$index==32) {\n\techo \"1\";\n\t# code...\n}\nelseif($index==22)\n\techo \"0\";\n\nelseif ($sum%2==0) {\n\techo \"2\";\n\t# code...\n}\nelse\necho \"3\";", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5185fbe5c0e3a5423206666d998ca55f", "src_uid": "8ba7cedc3f6ae478a0bb3f902440c8e9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//=====================================\n// link: https://codeforces.com/contest/263/problem/A\n//=====================================\n\n$moves = 0;\n\nfor ($row=0; $row < 5; $row++) {\n    $columns = explode(' ', trim(fgets(STDIN)));\n\n    for ($column=0; $column < 5; $column++) {\n        if($columns[$column] == 1) {\n            if($row != 2 || $column != 2) {\n                $moves = abs($row - 2) + abs($column - 2);\n            }\n            echo $moves . \"\\n\";\n            exit;\n        }\n    }\n}\n\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "bf6760176f86d7baa0dae4784fa6215b", "src_uid": "8ba7cedc3f6ae478a0bb3f902440c8e9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$line1=fgets(STDIN);\n$line2=fgets(STDIN);\n$line3=fgets(STDIN);\n$line4=fgets(STDIN);\n$line5=fgets(STDIN);\n\n$line1=explode(\" \",$line1);\n$line2=explode(\" \",$line2);\n$line3=explode(\" \",$line3);\n$line4=explode(\" \",$line4);\n$line5=explode(\" \",$line5);\n\n$i=0;\n\nwhile($i<5)\n{\nif($line1[$i]==1)\n{\n$flag1=1;\n$flag2=$i;\n}\n$i++;\n}\n\n$i=0;\nwhile($i<5)\n{\nif($line2[$i]==1)\n{\n$flag1=2;\n$flag2=$i;\n}\n$i++;\n}\n\n$i=0;\nwhile($i<5)\n{\nif($line3[$i]==1)\n{\n$flag1=3;\n$flag2=$i;\n}\n$i++;\n}\n\n$i=0;\nwhile($i<5)\n{\nif($line4[$i]==1)\n{\n$flag1=4;\n$flag2=$i;\n}\n$i++;\n}\n\n$i=0;\nwhile($i<5)\n{\nif($line5[$i]==1)\n{\n$flag1=5;\n$flag2=$i;\n}\n$i++;\n}\n$flag2++;\n\n$result=(abs(3-$flag1)+abs(3-$flag2));\n\nfputs(STDOUT, $result);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a81b9110ca2e22f4c802b68112fbac91", "src_uid": "8ba7cedc3f6ae478a0bb3f902440c8e9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// @author sunwarul\nerror_reporting(0);\n$std = fopen(\"php://stdin\", \"r\");\n$arr = [];\n$res = 0;\nfor ($i = 0; $i <= 4; $i++) {\n    fscanf($std, \"%[^\\n]\", $temp_arr);\n    $arr[] = array_map('intval', preg_split('/ /', $temp_arr, -1, PREG_SPLIT_NO_EMPTY));\n}\n\nfor ($i = 0; $i <= 4; $i++) {\n    for ($j = 0; $j <= 4; $j++) {\n        if ($i == 0 && $j == 0) {\n            if ($arr[$i][$j] == 1) {\n                $res = 4;\n            } else {\n                $res = 0;\n            }\n        }\n        if ($arr[$i][$j] == 1) {\n            $res = abs($i - 2) + abs($j - 2);\n        }\n    }\n}\n\necho $res . \"\\n\";\nfclose($std);\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "f813d0395715f01b6c8e5911778fa23d", "src_uid": "8ba7cedc3f6ae478a0bb3f902440c8e9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $f = fopen('php://stdin', 'r');\n    $cnt = 0;\n    \n    while(($char = fgetc($f)) !== FALSE) {\n        if (is_numeric($char)) {\n            $cnt++;\n        }\n        if ($char == 1) break;\n        \n    }\n    $row = ceil($cnt / 5);\n    $cell = ceil($cnt % 5);\n    $cell = $cell ? $cell : 5;\n    echo abs(3- $row) + abs(3 - $cell);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "3e8a83398519baedbb1fbbdea5c80cf4", "src_uid": "8ba7cedc3f6ae478a0bb3f902440c8e9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfor($y_num = 0; $y_num < 5; $y_num++) {\n\t$x_array = explode(\" \", fgets(STDIN));\n\t$x_num = array_search(1, $x_array);\n\tif(strlen($x_num) > 0) {\n\t\t$result = abs(2-$y_num) + abs(2-$x_num);\n\t\techo $result;\n\t}\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6f2956182f5adac5736acc2e36c04592", "src_uid": "8ba7cedc3f6ae478a0bb3f902440c8e9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfor ($i=0;$i<5;$i++) {\n    $str[$i] = explode(\" \", trim(fgets(STDIN)));\n}\n$r = $c =0;\nfor ($i=0;$i<count($str);$i++) {\n    for ($j=0;$j<count($str[$i]);$j++){\n        if ($str[$i][$j]==1){\n            $r = $i+1;\n            $c = $j+1;\n        }\n    }\n}\n\necho abs(3-$r)+abs(3-$c);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0fc3308a2896e5a0dff95d3d54e92611", "src_uid": "8ba7cedc3f6ae478a0bb3f902440c8e9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$matrix = array();\n\tarray_push($matrix,explode(' ',fgets(STDIN)));\n\tarray_push($matrix,explode(' ',fgets(STDIN)));\n\tarray_push($matrix,explode(' ',fgets(STDIN)));\n\tarray_push($matrix,explode(' ',fgets(STDIN)));\n\tarray_push($matrix,explode(' ',fgets(STDIN)));\n\tfor ($x = 0; $x < 5; $x++) {\n\t\tfor ($y = 0; $y < 5; $y++) {\n\t\t\tif ($matrix[$x][$y] == 1) {\n\t\t\t\techo abs(2 - $x) + abs(2 - $y);\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t\tif ($matrix[$x][$y] == 1) {\n\t\t\tbreak;\n\t\t}\n\t}\n\t", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "09f7f345d0aade058558ccd6e05ae52f", "src_uid": "8ba7cedc3f6ae478a0bb3f902440c8e9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\n\nfor ($i = 0; $i < 5; $i++) {\n    $inputs[$i] = (explode(\" \",readline()));\n    if(array_sum($inputs[$i]) == 1){\n        $r = $i+1;\n        for($x = 0; $x < 5; $x++){\n            if($inputs[$i][$x] == 1){\n                $c = $x+1;\n                break;\n            }\n        }\n    }\n}\n\n\n\necho abs($r-3) + abs($c-3);\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "98a965d6b8621c1cb7a30be7b9224734", "src_uid": "8ba7cedc3f6ae478a0bb3f902440c8e9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%s\\n\", $word);\n\nif (preg_match(\"/^[A-Z]+$/\", $word)) {\n    $word = strtolower($word);\n}\nelse {\n    $firstLetter = substr($word, 0, 1);\n    $restLetters = substr($word, 1);\n    \n    if (preg_match(\"/^[a-z]$/\", $firstLetter) && (preg_match(\"/^[A-Z]+$/\", $restLetters) || $restLetters == \"\")){\n        $newFirst = strtoupper($firstLetter);\n        $newRest = strtolower($restLetters);\n        $word = $newFirst . $newRest;\n    }\n}\n\necho $word;\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "b2b9dc7b1ee80208b2b80ca05647116b", "src_uid": "db0eb44d8cd8f293da407ba3adee10cf", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = trim(fgets(STDIN));\nif (preg_match(\"/^([A-Z]+)$/\",$line))\n{\n    echo strtolower($line);\n}\nelseif (preg_match(\"/^([a-z]{1})([A-Z]*)$/\",$line))\n{\n    echo strtoupper($line[0]).strtolower(substr($line,1));\n}\nelse\n{\n    echo $line;\n}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "f406209c19e6991e56b39d23c4b767bc", "src_uid": "db0eb44d8cd8f293da407ba3adee10cf", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction dd(...$args)\n{\n    var_dump(...$args);\n    die;\n}\n\ndefine('TXTIN', fopen('input.txt', 'r'));\ndefine('TXTOUT', fopen('output.txt', 'w'));\n\n//$input = TXTIN;\n$input = STDIN;\n//$output = TXTOUT;\n$output = STDOUT;\n\nfunction foo($s)\n{\n    // @cases: h / hELLO\n    if ($s[0] === strtolower($s[0])) {\n        $ss = substr($s, 1);\n\n        if (\n            // @case: h\n            $ss === false ||\n            // @case: hELLO\n            $ss === strtoupper($ss)\n        ) {\n            return ucfirst(strtolower($s));\n        }\n    }\n\n    // @case: HTTP\n    if ($s === strtoupper($s)) {\n        return strtolower($s);\n    }\n\n    // other cases\n    return $s;\n}\n\n$r = 0;\n\nlist($s) = fscanf($input, \"%s\");\n\n$r = foo(trim($s));\n\nfwrite($output, $r);\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "ea625866511b6259a2cffd37f5952d64", "src_uid": "db0eb44d8cd8f293da407ba3adee10cf", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile (fscanf(STDIN, \"%s\", $s)){\n    $temp = $s;\n    $length = strlen($s);\n    if ('a' <= $s[0] && 'z' >= $s[0]){\n        $s[0] = strtoupper($s[0]);  \n        if (!isset($s[1])){            \n            echo $s . \"\\n\";\n            goto a;\n        }\n        if (isset($s[1]) &&  'A' <= $s[1] && 'Z' >= $s[1]){\n            for ($i = 1; $i < $length; ++$i){                \n                if ('a' <= $s[$i] && 'z' >= $s[$i]){\n                    echo $temp . \"\\n\";\n                    goto a;\n                }\n                $s[$i] = strtolower($s[$i]);\n            }\n            echo $s . \"\\n\";\n        }   else {\n            echo $temp . \"\\n\";\n            goto a;\n        }     \n        \n    } else {\n        for ($i = 0; $i < $length; ++$i){\n            if (('A' <= $s[$i] && 'Z' >= $s[$i])){\n                $s[$i] = strtolower($s[$i]);\n            } else {\n                echo $temp . \"\\n\";\n                goto a;\n            }\n        }\n        echo $s . \"\\n\";\n    }\n    a:\n}\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "45d48f531aa853030ff63932aea6c440", "src_uid": "db0eb44d8cd8f293da407ba3adee10cf", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$string = fgets(STDIN);\n\nif ($string == strtoupper($string)){\n\tprintf(strtolower($string));\n}\nelse if(substr($string,1,strlen($string)) == strtoupper(substr($string,1,strlen($string))) ){\nprintf(ucfirst(strtolower($string)));}\nelse {\n\tprint($string);\n}\n\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "6d5eaeaf2e0486920e0c0773028398e3", "src_uid": "db0eb44d8cd8f293da407ba3adee10cf", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = trim(fgets(STDIN));\nif(preg_match('/^([A-Z]+)$/', $input)){\n    echo strtolower($input);\n}\nelse if (preg_match('/^([a-z]{1})([A-Z]*)$/', $input)) {\n    echo strtoupper($input[0]).strtolower(substr($input, 1));\n}\nelse {\n    echo $input;\n}\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "33f67b1356cc5c9917bb241bfd3bd9b7", "src_uid": "db0eb44d8cd8f293da407ba3adee10cf", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$in = trim(fgets(STDIN));\n\t$var = str_split($in);\n\t$n = 0; $m = strlen($in);\n\tforeach ($var as $v) {\n\t\tif ($v >= 'A' && $v <= 'Z') $n++;\n\t}\n\tif ($var[0] >= 'a' && $var[0] <= 'z') {\n\t\tif (/*$n == 1 ||*/$n == $m - 1) {\n\t\t\techo ucwords(strtolower($in));\t\n\t\t} else {\n\t\t\techo $in;\n\t\t}\n\t} else if ($n == $m) {\n\t\techo strtolower($in);\t \n\t} else {\n\t\techo $in;\n\t}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "9bfff4b8443e7a5bb144f6794ebeeba1", "src_uid": "db0eb44d8cd8f293da407ba3adee10cf", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction Capslock($input){\n    $output =   \"\";\n    $string_length = strlen($input);\n    $string_except_first_letter =   substr($input, 1, $string_length);\n  \n    if($string_length==1){\n        if(ctype_lower($input)){\n            $output = strtoupper($input);\n        }\n        else {\n            $output = strtolower($input);\n        }\n        \n    }\n    elseif (ctype_upper($input)){\n        $output = strtolower($input);\n    }\n    else{\n        if( ctype_upper($string_except_first_letter)){\n                $output     = strtoupper($input[0]).strtolower($string_except_first_letter);\n        }\n        else {\n            $output =   $input;\n        }\n    }\n   \n    return $output;\n}\n\n$line = trim(fgets(STDIN));\necho Capslock($line).\"\\n\";\n\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "091fcd511142906426eda36b5df403e9", "src_uid": "db0eb44d8cd8f293da407ba3adee10cf", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$text = trim(fgets(STDIN));\n\t$sub = substr($text,1,strlen($text)-1);\n\n\tif (ctype_upper($text))\n\t\t$text = strtolower($text);\n\telseif (ctype_lower($text[0]) && strcmp(strtoupper($sub),$sub)==0)\n\t\t$text = strtoupper($text[0]).strtolower($sub);\n\tfwrite(STDOUT,$text);", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "a23df79497206c2c325b7d9e47e4eb93", "src_uid": "db0eb44d8cd8f293da407ba3adee10cf", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \nlist($s)=explode(\" \",trim(fgets(STDIN)));\n$n= strlen($s);\nfor ($i=1,$k=0;$i<$n;$i++)\nif (ord($s[$i])<91) $k++;\nif ($k==$n-1) {\n   if (ord($s[0])<91) $s[0]=chr(ord($s[0])+32);\n else $s[0]= chr(ord($s[0])-32);\nprint $s[0];\nfor ($i=1;$i<$n;$i++){\n  $s[$i]=chr(ord($s[$i])+32);\n  print $s[$i];\n}\n  }\n  else print $s;\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "a9626ab6320fbd73145c5a2e76c85855", "src_uid": "db0eb44d8cd8f293da407ba3adee10cf", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction A($x, $t, $a, $b, $da, $db) {    \n    $at = 0; $bt = 0;\n    for ($i = 0; $i < $t; $i++) {\n        $at = $a - $da * $i;\n        \n        for ($j = 0; $j < $t; $j++) {\n            $bt = $b - $db * $j;\n            if ($at + $bt == $x) {\n                return 'YES';\n            }\n        }\n    }\n    for ($i = 0; $i < $t; $i++) {\n        if (($a - $da * $i) == $x || ($b - $db * $i) == $x) {\n            return 'YES';\n        }\n    }\n    if ($x == 0) return 'YES';\n    return 'NO';\n}\n\n$in = explode(' ', file_get_contents('php://stdin'));\necho A($in[0], $in[1], $in[2], $in[3], $in[4], $in[5]);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "a6e3e2afdf3a4248c892a6b094f262c3", "src_uid": "f98168cdd72369303b82b5a7ac45c3af", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e, $f) = explode(\" \", trim(fgets(STDIN)));\n$g = array();\n$h = array();\n$i = 0;\n$j = 0;\nfor($x = 0; $x < $b; $x++)\n{\n    array_push($g, $c);\n    $c = $c - $e;\n}\nfor($x = 0; $x < $b; $x++)\n{\n    array_push($h, $d);\n    $d = $d - $f;\n}\nfor($x = 0; $x < $b; $x++)\n{\n    if($g[$x] == $a)\n    {\n        $i++;\n    }\n}\nfor($x = 0; $x < $b; $x++)\n{\n    if($h[$x] == $a)\n    {\n        $i++;\n    }\n}\nfor($x = 0; $x < $b; $x++)\n{\n    for($y = 0; $y < $b; $y++)\n    {\n        if($g[$x] + $h[$y] == $a)\n        {\n            $i++;\n        }\n    }\n}\nif($a == 0)\n{\n    print \"YES\";\n}\nelse\n{\n    if($i > 0)\n    {\n        print \"YES\";\n    }\n    else\n    {\n        print \"NO\";\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "eb4226e626c1c77f4609b9ab792f4c82", "src_uid": "f98168cdd72369303b82b5a7ac45c3af", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($x, $t, $a, $b, $da, $db) = explode(' ',trim(fgets(STDIN)));\n\nif($x == 0) {print 'YES'; exit(0);}\n\nfor($i=0;$i<$t;$i++)\n for($j=0;$j<$t;$j++)\n  if($a - $da * $i + $b - $db * $j == $x || $a - $da * $i == $x || $b - $db * $j == $x) {print 'YES'; exit(0);}\n\nprint 'NO';\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "f40e848b79711a11931240461ddb1f8a", "src_uid": "f98168cdd72369303b82b5a7ac45c3af", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nif(($b == 0) || ($b == $a))\n{\n     $c = 0;\n}\nelse\n{\n     $c = 1;\n}\n$d = $a % 3;\n$e = floor($a / 3);\nif(($b == 0) || ($b == $a))\n{\n     $e = 0;\n}\nelseif($d == 0)\n{\n     if($b <= $e)\n     {\n          $e = $b * 2;\n     }\n     else\n     {\n          $f = $b - $e;\n          $e = ($b - $f) * 2 - $f;\n     }\n}\nelseif($d == 1)\n{\n     if($b <= $e)\n     {\n          $e = $b * 2;\n     }\n     else\n     {\n          $f = $b - $e;\n          $e = ($b - $f) * 2 - $f + 1;\n     }\n}\nelseif($d == 2)\n{\n     if($b <= $e)\n     {\n          $e = $b * 2;\n     }\n     else\n     {\n          $f = $b - $e;\n          $e = ($b - $f) * 2 - $f + 2;\n     }\n}\nprint $c . \" \" . $e;\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "971862ed8561998de632562c9e9c371d", "src_uid": "bdccf34b5a5ae13238c89a60814b9f86", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n, $m, $k) = explode(\" \", trim(fgets(STDIN)));\n$prices = explode(\" \", trim(fgets(STDIN)));\n$min = $n*10;\n\narray_walk($prices, function ($value, $key) use ($k, $m, &$min){\n    if ($value > 0 && $value <= $k && abs($key - $m + 1)*10 < $min) {\n        $min = abs($key - $m + 1)*10;\n    }\n}, ARRAY_FILTER_USE_BOTH);\n\necho $min;", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "719d171df25b08d030639236df57830e", "src_uid": "57860e9a5342a29257ce506063d37624", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($h, $c, $m) = explode(\" \", trim(fgets(STDIN)));\n$hh = explode(\" \", trim(fgets(STDIN)));\n\n$b = $h;\nfor($i = 0; $i < $h; $i++)\n{\n\tif($hh[$i] > 0 && $hh[$i] <= $m)\n\t{\n\t\t$b = min($b, abs($c - ($i + 1)) );\n\t}\n}\n\necho ($b * 10) . PHP_EOL;", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "052a407c51fe461fdbbd6abb183c30ef", "src_uid": "57860e9a5342a29257ce506063d37624", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = explode(\" \", trim(fgets(STDIN)));\n$e = 0;\nfor($x = $b - 2; $x >= 0; $x--)\n{\n     if(($d[$x] != 0) && ($d[$x] <= $c))\n     {\n          $e += 10;\n          $i = 1;\n          break;\n     }\n     else\n     {\n          $e += 10;\n     }\n}\n$f = 0;\nfor($x = $b; $x < $a; $x++)\n{\n     if(($d[$x] != 0) && ($d[$x] <= $c))\n     {\n          $f += 10;\n          $j = 1;\n          break;\n     }\n     else\n     {\n          $f += 10;\n     }\n}\nif($i == 0)\n{\n     print $f;\n}\nelseif($j == 0)\n{\n     print $e;\n}\nelse\n{\n     $g = min($e, $f);\n     $h = max($e, $f);\n     if($g == 0)\n     {\n          print $h;\n     }\n     else\n     {\n          print $g;\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "baa124d1195db051760102eb45f5c90b", "src_uid": "57860e9a5342a29257ce506063d37624", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// Retrieve input and show output\n$stream = fopen(\"php://stdin\", \"r\");\n$input = stream_get_contents($stream);\n$inputs = preg_split(\"/[\\s]+/\", $input);\necho func($inputs);\n\n// Actual function for problem\nfunction func($in) {\nif (($in[0] < 2 * $in[2]) || ($in[1] < 2 * $in[2])) {return \"Second\";} else {return \"First\";}\n}\n\n// End of submission file\n// Submission by chaotic_iak\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "games"], "code_uid": "4be140dbbb7f17a0a0e4e67c7fd5953f", "src_uid": "90b9ef939a13cf29715bc5bce26c9896", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile($s = fgets(STDIN)){\n        $input .= $s;\n}\n$input = explode(\"\\r\\n\", $input);\n$digits = explode (\" \", $input[0]);\nunset ($input);\n$a=$digits[0];\n$b=$digits[1];\n$r=$digits[2];\n$s=min($a,$b);\nif ($r*2>$s) {\necho \"Second\";\n}\nelse echo \"First\";\n?>\n", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "games"], "code_uid": "a212a1ae68d846eab67d1e39720edb10", "src_uid": "90b9ef939a13cf29715bc5bce26c9896", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $r) = explode(' ',trim(fgets(STDIN)));\n\nif(2 * $r > min($a, $b)) print 'Second'; else print 'First';\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "games"], "code_uid": "9919d8e64aa90d6ece03e2b7b3d37b7e", "src_uid": "90b9ef939a13cf29715bc5bce26c9896", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$input = trim(fgets(STDIN));\n\tif (preg_match('/^(1|14|144)+$/',$input)) echo \"YES\";\n\telse echo \"NO\";\n\techo \"\\n\";\n\n\t\n\t\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "1c6ad04aadf7c3731a546858f732b2b0", "src_uid": "3153cfddae27fbd817caaf2cb7a6a4b5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$line = trim(fgets(STDIN));\n$digitLen = strlen($line);\nif (0 == $digitLen || $line[0] != 1) {\n\techo 'NO';\n\treturn;\n}\n\n$count4 = 0;\nfor ($i = 0; $i < $digitLen; $i++) {\n\tif ($count4 > 2) {\n\t\techo 'NO';\n\t\treturn;\n\t}\n\n\t$c = $line[$i];\n\tif ($c == 1) {\n\t\t$count4 = 0;\n\t\tcontinue;\n\t}\n\n\tif ($c == 4) {\n\t\t$count4++;\n\t\tcontinue;\n\t}\n\n\techo 'NO';\n\treturn;\n}\n\necho ($count4 > 2) ? 'NO' : 'YES';\n", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "7b838d27738c4314bfb1ba3a89ff5374", "src_uid": "3153cfddae27fbd817caaf2cb7a6a4b5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tfunction check($x)\n\t{\n\t\t$n = strlen($x);\n\t\tfor ($i = 0; $i < $n; ++$i)\n\t\t{\n\t\t\tif ($x[$i] == 1) continue;\n\t\t\tif ($x[$i] == 4)\n\t\t\t{\n\t\t\t\tif ($i > 0 && $x[$i - 1] == 1) continue;\n\t\t\t\tif ($i - 1 > 0 && $x[$i - 1] == 4 && $x[$i - 2] == 1) continue;\n\t\t\t}\n\t\t\treturn false;\n\t\t}\n\t\treturn true;\n\t}\n\n\n\n\t$input = trim(fgets(STDIN));\n\tif (check($input)) echo \"YES\";\n\telse echo \"NO\";\n\techo \"\\n\";\n\n\t\n\t\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "53f3a55bf18881b6f1c70b1ad30b93a6", "src_uid": "3153cfddae27fbd817caaf2cb7a6a4b5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=trim(fgets(STDIN));\nif( preg_match('/^(1|14|144)+$/',$a) ) echo \"YES\"; else echo \"NO\";\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "cc24cb76d01ba5852316f6eb0bc38822", "src_uid": "3153cfddae27fbd817caaf2cb7a6a4b5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$a=trim(fgets(STDIN));\nif(preg_match('/^(14|1|144)+$/',$a))echo \"YES\";\nelse echo \"NO\";\n?>\n        \t \t \t  \t \t\t \t\t      \t \t", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "02b22d16cef8a756bc21bcd76d33d751", "src_uid": "3153cfddae27fbd817caaf2cb7a6a4b5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$a=trim(fgets(STDIN));\nif(preg_match('/^(14|1|144)+$/',$a))echo \"YES\";\nelse echo \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "4cf1a6d8d53756c122301d57a72683fe", "src_uid": "3153cfddae27fbd817caaf2cb7a6a4b5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nfor($x = 1; $x <= 1000000000; $x++)\n{\n    $b = substr($a, 0, 3);\n    $c = substr($a, 0, 2);\n    $d = substr($a, 0, 1);\n    if($a == \"\")\n    {\n        print \"YES\";\n        break;\n    }\n    elseif($b == \"144\")\n    {\n        $a = substr($a, 3);\n    }\n    elseif($c == \"14\")\n    {\n        $a = substr($a, 2);\n    }\n    elseif($d == \"1\")\n    {\n        $a = substr($a, 1);\n    }\n    else\n    {\n        print \"NO\";\n        break;\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "7930f3f8e8194b8b3ba29e2ec793ece8", "src_uid": "3153cfddae27fbd817caaf2cb7a6a4b5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$s = fopen(\"php://stdin\", 'r');\n\n$n = fgets($s);\n$n=trim($n);\n\nfor ($i=0; $i<strlen($n); $i++)\n{\nif ( (substr($n,$i,1) != 1 && substr($n,$i,1) != 4) || (substr($n,0,1)==4))\n{\n echo \"NO\";\n return;\n}\nelse if (substr($n,$i,1)==4)\n{\n  if ( $i>1 && (substr($n,$i-2,1) . substr($n,$i-1,1) . substr($n,$i,1)== \"444\")) //444\n  {\n echo \"NO\";\n return;\n  }\n\n\n}\n}\n\necho \"YES\";\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "4620ece5497abee2ebe17b6f21ac80f1", "src_uid": "3153cfddae27fbd817caaf2cb7a6a4b5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen( 'php://stdin', 'r' );\n$str = trim(fgets($f));\n\n$tmp = \"\";\n$err = \"\";\nfor($i=0;$i<strlen($str);$i++){\n\n    if($str[$i]==1){\n        if($tmp == \"1\"){\n            continue;\n        }\n        elseif($tmp == \"\" || $tmp == \"14\" || $tmp == \"144\"){\n            $tmp = \"1\";\n        }\n        else{\n            $err = $str[$i];\n        }\n    }\n    elseif($str[$i]==4){\n        if($tmp == \"14\"){\n            $tmp = \"144\";\n        }\n        elseif($tmp == \"1\"){\n            $tmp = \"14\";\n        }\n        else{\n            $err = $str[$i];\n        }\n    }\n    else{\n        $err = $str[$i];\n    }\n\n}\n\necho $err === \"\" ? \"YES\" : \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "947d85ec0496ace0ddf7218a2b29b1b7", "src_uid": "3153cfddae27fbd817caaf2cb7a6a4b5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nerror_reporting(-1);\n\n$s = fopen(\"php://stdin\", 'r');\n$input = fgets($s);\n$input = trim($input);\n\nfunction valid($string) {\n    $a = 1;\n    $b = 14;\n    $c = 144;\n    if ($string == $a || $string == $b || $string == $c)\n        return true;\n}   \n\n$currentSequence = \"\";\n$condition = true;\nforeach (str_split($input) as $key => $value) {\n    if ($value != \"1\" && $value != \"4\") \n        $condition = false;\n\n    if (empty($currentSequence) || valid($currentSequence)) {\n        $currentSequence = $currentSequence . $value;\n    } elseif (strlen($currentSequence) >= 1) {\n        $currentSequence = $value;\n    } else {\n        $condition = false;\n    }\n\n    if (!valid($currentSequence)) {\n        $currentSequence = $value;\n        if (!valid($currentSequence)) {\n            $condition = false;\n        }\n    }\n}\n\necho $condition === true ? \"YES\\n\" : \"NO\\n\";\n\n", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "0abefb6e6fcd66b8832422f996a86038", "src_uid": "3153cfddae27fbd817caaf2cb7a6a4b5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$file = fopen('input.in', 'r');\n$file = STDIN;\n$q = trim(fgets($file));\n$aArray = explode(\" \", trim(fgets($file)));\n$b = $aArray[0];\nunset($aArray[0]);\n$result = 0;\nrsort($aArray);\nwhile ($b<=$aArray[0]) {\n    $b++;\n    $result++;\n    $aArray[0]--;\n    rsort($aArray);\n}\necho $result;", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "78bd1ef4c7f6519602514b4fa705a643", "src_uid": "aa8fabf7c817dfd3d585b96a07bb7f58", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$arr = explode(\" \",trim(fgets(STDIN)));\n$lum = $arr[0];\n$arr = array_slice($arr,1);\nrsort($arr);\n$count=0;\nwhile($lum<=$arr[0])\n{\n    $lum+=1;\n    $arr[0]-=1;\n    $count+=1;\n    rsort($arr);\n}\nprint $count;\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "a6a356a25b612399db8a81c93dbc3684", "src_uid": "aa8fabf7c817dfd3d585b96a07bb7f58", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n        $n = trim(fgets(STDIN));\n        $a = explode(\" \", trim(fgets(STDIN)));\n        //print_r($a);\n         $x = $a[0];\n         $b = array_slice($a,1);\n         rsort($b);\n         $count = 0;\n         while($x <= $b[0]){\n             $b[0]--;\n             $x++;\n             $count++;\n             rsort($b);\n         }\n         echo $count.\"\\n\";", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "d4fd190a3c6e52700584193ee0a241bf", "src_uid": "aa8fabf7c817dfd3d585b96a07bb7f58", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$file = fopen('input.in', 'r');\n$file = STDIN;\n$q = trim(fgets($file));\n$aArray = explode(\" \", trim(fgets($file)));\n$b = $aArray[0];\nunset($aArray[0]);\n$result = 0;\nsort($aArray);\nwhile ($b<=$aArray[$q-2]) {\n    $b++;\n    $result++;\n    $aArray[$q-2]--;\n    sort($aArray);\n}\necho $result;", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "f9bcfa1dc4b9b5dc390e46918b449614", "src_uid": "aa8fabf7c817dfd3d585b96a07bb7f58", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = $b[0];\n$d = array_slice($b, 1);\nrsort($d);\n$e = 0;\nwhile(TRUE)\n{\n    if($c > $d[0])\n    {\n        break;\n    }\n    else\n    {\n        $c++;\n        $d[0]--;\n        $e++;\n        rsort($d);\n    }\n}\nprint $e;\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "fd6a8aa94b7c7f9edeecc694ac5e7c82", "src_uid": "aa8fabf7c817dfd3d585b96a07bb7f58", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "\n        <?php\n            //$file = fopen('C:\\\\Users\\\\mohamed adel\\\\Desktop\\\\input.txt', 'r');\n            $file = STDIN;\n            $n = trim(fgets($file));\n            $arr = explode(\" \", trim(fgets($file)));\n            function max_($n, &$arr){\n                $id = 0; $m = $arr[0];\n                for($i = 1; $i<$n; $i++){\n                    if($arr[$i] >= $m){\n                         $m = $arr[$i];\n                         $id = $i;\n                    }\n                }\n                return $id;\n            }\n\n            $x = $arr[0];\n            $id = max_($n, $arr);\n            while($id != 0){\n                $arr[$id]--;\n                $arr[0]++;\n                $id = max_($n, $arr);\n                \n            }\n            print $arr[$id]-$x;\n            //print_r($arr);\n        ?>\n\n", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "49b77edd966facf8754b14737e75a60a", "src_uid": "aa8fabf7c817dfd3d585b96a07bb7f58", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$arr = explode(\" \",trim(fgets(STDIN)));\n$lum = $arr[0];\n$arr = array_slice($arr,1);\nrsort($arr);\n$count=0;\nwhile($lum<=$arr[0])\n{\n    $lum+=1;\n    $arr[0]-=1;\n    $count+=1;\n    rsort($arr);\n}\nprint $count;\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "20f04211ac285d28356a629b2c693f46", "src_uid": "aa8fabf7c817dfd3d585b96a07bb7f58", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$file = fopen('input.in', 'r');\n$file = STDIN;\n$q = trim(fgets($file));\n$aArray = explode(\" \", trim(fgets($file)));\n$b = $aArray[0];\nunset($aArray[0]);\n$result = 0;\n$aArray = array_count_values($aArray);\nkrsort($aArray);\n$max = 0;\n\nforeach ($aArray as $n => $q) {\n    $max = $n;\n    break;\n}\nwhile ($b - $max <=0) {\n    $t = floor($max - $b) + 1;\n    if ($t<=$aArray[$max]) {\n        $result = $result + $t;\n        break;\n    } else {\n        $b += $aArray[$max];\n        $result += $aArray[$max];\n        if (isset($aArray[$max-1])) {\n            $aArray[$max - 1] += $aArray[$max];\n            unset($aArray[$max]);\n        } else {\n            $aArray[$max - 1] = $aArray[$max];\n        }\n        $max--;\n    }\n}\n\necho $result;\n", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "91c93da50a8e78b6c3750c792e8ebba3", "src_uid": "aa8fabf7c817dfd3d585b96a07bb7f58", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n        $n = trim(fgets(STDIN));\n        $a = explode(\" \", trim(fgets(STDIN)));\n         $x = $a[0];\n         $b = array_slice($a,1);\n         rsort($b);\n         $count = 0;\n         while($x <= $b[0]){\n             $b[0]--;\n             $x++;\n             $count++;\n             rsort($b);\n         }\n         echo $count.\"\\n\";", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "b4a42b04a357c6d412fcb0881475575b", "src_uid": "aa8fabf7c817dfd3d585b96a07bb7f58", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = rtrim(fgets(STDIN));\n$raw = explode(' ', $input);\n$firstSocks = (int)$raw[0];\n$secondSocks = (int)$raw[1];\n\necho min($firstSocks, $secondSocks) . ' ' . (int) (abs($firstSocks - $secondSocks) / 2) . PHP_EOL;\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "3f5f382fdb7e9eb790511f53be079513", "src_uid": "775766790e91e539c1cfaa5030e5b955", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, '%d %d', $a, $b);\nprint ($a<$b?$a:$b).' '.intval(abs($a-$b)/2);\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "98753fa7fb0b53068cbdc2af654400ad", "src_uid": "775766790e91e539c1cfaa5030e5b955", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $a, $b);\n$x = min($a, $b);\n$a -= $x;\n$b -= $x;\n$y = floor($a / 2) + floor($b / 2);\necho \"$x $y\";\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "22f43a4500582eeb57d94c8dc0c27bdb", "src_uid": "775766790e91e539c1cfaa5030e5b955", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $l, $r);\n// $input = explode(' ', trim(fgets(STDIN)));\n// $input = array_map('intval',  $input);\n\n$max = max($l, $r);\n$min = min($l, $r);\necho $min . ' ' . floor(($max-$min) / 2);", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "4d1056a5ceece546f7c1a6fc38ef4ebe", "src_uid": "775766790e91e539c1cfaa5030e5b955", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$p = explode(' ', readline());\n$a = floor(abs($p[0]-$p[1])/2);\necho min($p).' '.$a;", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "549e91b09d37c123290bd88071cae5e7", "src_uid": "775766790e91e539c1cfaa5030e5b955", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(' ', readline());\necho min($a, $b) . \" \" . floor((max($a, $b)-min($a, $b))/2). \"\\n\";", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "5dc8ee9683ad9c40461b9bcbf479b1ee", "src_uid": "775766790e91e539c1cfaa5030e5b955", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n  $numbers = explode(' ', trim(fgets(STDIN)));\n  echo min($numbers[0], $numbers[1]) . ' ' . abs(intval(($numbers[0] - $numbers[1])/2));\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "d1d24fedd713c880af07f855d9885467", "src_uid": "775766790e91e539c1cfaa5030e5b955", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a,$b) = explode(' ',fgets(STDIN));\n$a-=0;\n$b-=0;\nprintf(\"%d %d\",$a<$b?$a:$b,abs($a-$b)/2);\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "6752bdc63a0b5328a800ba681f48d4ee", "src_uid": "775766790e91e539c1cfaa5030e5b955", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = min($a, $b);\n$a -= $c;\n$b -= $c;\nif($a == 0)\n{\n    $d = floor($b / 2);\n}\nelse\n{\n    $d = floor($a / 2);\n}\nprint $c . \" \" . $d;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "c3c01855f73779ab89cadaa9b70be23f", "src_uid": "775766790e91e539c1cfaa5030e5b955", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$fi=@fopen('test.inp',\"r\");\nlist($a,$b)=explode(\" \",trim(fgets(STDIN)));\n$c=min($a,$b);$a-=$c;$b-=$c;\necho $c . \" \";\n$c=floor(($a+$b)/2);\necho $c;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "20336bf48df08645643392882a6ec595", "src_uid": "775766790e91e539c1cfaa5030e5b955", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nclass InputReader {\n\tprotected $_fh;\n\t\n\tpublic function __construct($fileHandler = STDIN) \n\t{\n\t\t$this->_fh = $fileHandler;\n\t}\n\t\n\tpublic function readInt() \n\t{\n\t\t$d = trim(fgets($this->_fh));\n\t\t\n\t\treturn (int)$d;\n\t}\n\t\n\tpublic function readArrayOfInt($size, $indexFrom = 0) \n\t{\n\t\t$a = [];\n\t\t$ind = $indexFrom;\n\t\tforeach (explode(' ', fgets($this->_fh)) as $item) {\n\t\t\t$a[$ind++] = (int)$item;\n\t\t}\n\t\t\n\t\treturn $a;\n\t}\n\t\n\tpublic function readArrayOfString($size, $indexFrom = 0) \n\t{\n\t\t$a = [];\n\t\t$ind = $indexFrom;\n\t\tforeach (explode(' ', fgets($this->_fh)) as $item) {\n\t\t\t$a[$ind++] = $item;\n\t\t}\n\t\t\n\t\treturn $a;\n\t}\n}\n\nfunction ntimes($n, $func, $returnResults = false) {\n\t$a = [];\n\tfor ($i=1; $i<=$n; $i++) {\n\t\t$result = $func();\n\t\t\n\t\tif ($returnResults) {\n\t\t\t$a[$i] = $result;\n\t\t}\n\t}\n\t\n\treturn $a;\n}\n\n\n$ir = new InputReader();\n\n$n = $ir->readInt();\n$a = $ir->readArrayOfInt($n,1);\n$a[0] = 0;\n$a[$n+1] = 1001;\n\n$max = 0;\n$total = 0;\nfor ($i = 1; $i<=$n; $i++) {\n\tif (($a[$i+1] - $a[$i-1]) == 2) {\n\t\t$total++;\n\t}\n\telse {\n\t\t$max = max([$max, $total]);\n\t\t$total = 0;\n\t}\n}\n\n$max = max([$max, $total]);\necho $max;\n\n\n\n", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "7b80e69702c3f9c27c3242c58a21208f", "src_uid": "858b5e75e21c4cba6d08f3f66be0c198", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\n$c2 = 0;\nfor($x = 0; $x < $a; $x++)\n{\n     if($b[$x] == $x + 1)\n     {\n          $c++;\n     }\n     else\n     {\n          $c--;\n          $c2 = 1;\n          break;\n     }\n}\nif($c2 == 0)\n{\n     $c--;\n}\n$d = 0;\n$e = 1000;\n$e2 = 0;\nfor($x = $a - 1; $x >= 0; $x--)\n{\n     if($b[$x] == $e)\n     {\n          $d++;\n          $e--;\n     }\n     else\n     {\n          $d--;\n          $e2 = 1;\n          break;\n     }\n}\nif($e2 == 0)\n{\n     $d--;\n}\n$f = 0;\n$g = 0;\nfor($x = 0; $x < $a - 1; $x++)\n{\n     if($b[$x + 1] - $b[$x] == 1)\n     {\n          $g++;\n     }\n     elseif($g > 0)\n     {\n          $f = max($f, $g - 1);\n          $g = 0;\n     }\n}\nif($g > 0)\n{\n     $f = max($f, $g - 1);\n}\nprint max($c, $d, $f);\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "8143e8d0ba4183af2876ccd2b6ef551e", "src_uid": "858b5e75e21c4cba6d08f3f66be0c198", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "\n <?php\n\n$n = intval(trim(fgets(STDIN)));\n\nif($n==2){\n\techo 3;\n}elseif($n==1){\n\techo 1;\n}elseif($n==0){\n\techo 0;\n}else{\n\techo $n*2+1+dem($n, $n-1);\n}\n\n\nfunction dem($n, $l){\n\tif($l<=2) \n\t\treturn 0;\n\treturn ($l+($n-$l)*($l-1))+dem($n,$l-1);\n}", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "92224bc573d66cd8aa4526d1f06df09b", "src_uid": "6df251ac8bf27427a24bc23d64cb9884", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// 268B Кнопки  \n$in = fopen(\"php://stdin\", 'r');\n\n$input_line = fgets($in);\n$n = (int) $input_line;\n\n$out = 0; \n\nfor ($i=1; $i <= $n; $i++) { \n    $out += $i + ($n - $i) * ($i - 1); \n}\necho $out;\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "cb8a9c73f6ab3213e877e49ffa472b4e", "src_uid": "6df251ac8bf27427a24bc23d64cb9884", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 0;\n$c = 1;\nfor($x = $a - 1; $x > 0; $x--)\n{\n    $b = $b + ($x * $c);\n    $c++;\n}\nprint $a + $b;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "de43a02d99961f472a2685d3334c45e9", "src_uid": "6df251ac8bf27427a24bc23d64cb9884", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\n$r=0;\nfor ($i=1; $i<=$n;$i++)\n{\n    $r+=$i*($n-$i);\n}\nfprintf(STDOUT, \"%.0f\",$r+$n);", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "a24f859546b7cb836c935b3d58e183b6", "src_uid": "6df251ac8bf27427a24bc23d64cb9884", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$s = $n = trim(fgets(STDIN));\n\tfor($i = 0; $i < $n; $i++)\n\t\t$s += ($n-$i)*$i;\n\techo $s;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "bdf2f62051955703b1391072be592b12", "src_uid": "6df251ac8bf27427a24bc23d64cb9884", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = fgets(STDIN);\n$summ = $n==1?0:$n;\n$rinc=2;\nfor ($i=$n-1;$i>1;$i--){\n    $summ += ($rinc*($i-1)+1);\n    $rinc++;\n    \n}\n\necho $summ+1;\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "f098ba989952b94a2fb5f7862804cf65", "src_uid": "6df251ac8bf27427a24bc23d64cb9884", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "\n <?php\n\n$n = intval(trim(fgets(STDIN)));\n\necho dem($n,1,0);\n\n\n\nfunction dem($n, $l, $r){\n\tif($n==0) \n\t\treturn 0;\n\treturn ($n*$l-$r)+dem($n-1,$l+1,$r+1);\n}\n\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "32af90e7abde2caa0f018a9f8881ab78", "src_uid": "6df251ac8bf27427a24bc23d64cb9884", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//  In the name of Allah, the most Gracious, the most Merciful\n\n//  Copyright(c) 2009-2013, all rights reserved.\n//  written by ZHUMAZHANOV ADLET.\n\nfscanf(STDIN, \"%d\", $n);\n$answer = 0;\n\nfor ($i = 1; $i <= $n; $i ++) {\n\t$answer += 1 + ($n - $i) * $i;\n}\n\nprintf(\"%d\", $answer);\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "2062703ad84cd43f8e651bd0c99f684e", "src_uid": "6df251ac8bf27427a24bc23d64cb9884", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = floor($a / 2);\n$d = $b + 1;\n$e = floor($c / $d);\nif($e == 0)\n{\n     print \"0 0 \" . $a;\n}\nelse\n{\n     $f = $e * $b;\n     $g = $a - ($e + $f);\n     print $e . \" \" . $f . \" \" . $g;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "3b968ef448b5890ae2648e69996ae42d", "src_uid": "405a70c3b3f1561a9546910ab3fb5c80", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$inputLine = fgets(STDIN);\n\n$input = explode(' ', $inputLine);\n\n$n = (float) $input[0];\n\n$k = (float) $input[1];\n\n$pr = $n / 2.0;\n\n$nParts = $k + 1;\n\n$partSize = $pr / $nParts;\n\n$dipF = $partSize;\n\n$dip1 = ceil($dipF);\n\n$gr1 = $dip1 * $k;\n\nif ($gr1 + $dip1 <= $pr) {\n    echo $dip1 . ' ' . $gr1 . ' ' . ($n - $dip1 - $gr1);\n    exit;\n}\n\n$dip2 = floor($dipF);\n\n$gr2 = $dip2 * $k;\n\necho $dip2 . ' ' . $gr2 . ' ' . ($n - $dip2 - $gr2);\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "42404942a35884eda867896fa93f8f68", "src_uid": "405a70c3b3f1561a9546910ab3fb5c80", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d\", $a);\n    echo ceil($a / 2) - 1;\n    echo PHP_EOL;\n    \n", "lang_cluster": "PHP", "tags": ["constructive algorithms"], "code_uid": "188885bfac0d57e48625abb51d315cb0", "src_uid": "dfe9446431325c73e88b58ba204d0e47", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  $a = trim(fgets(STDIN));\n  $a--;\n  print floor($a/2);\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "constructive algorithms"], "code_uid": "15b8c7231e68eb678c0e11a385414526", "src_uid": "dfe9446431325c73e88b58ba204d0e47", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$a--;\n$b = floor($a / 2);\nprint $b;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "constructive algorithms"], "code_uid": "518c580ba1f33863fb2ddf4f1361ed75", "src_uid": "dfe9446431325c73e88b58ba204d0e47", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=fgets (STDIN);\n$cnt=substr_count($a,\"VK\");\n$a=str_replace(\"VK\",\"T\",$a);\n\n$vcnt= substr_count($a,\"VV\");\n$kcnt= substr_count($a,\"KK\");\n\nif($vcnt>0 OR $kcnt>0) $cnt = $cnt+1;\n\necho $cnt\n    \n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "bb08e03f349aa86ded3c053444857be7", "src_uid": "578bae0fe6634882227ac371ebb38fc9", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = file_get_contents('php://stdin');\n\n$sArr = str_split(trim($s));\n\n$candidates = [];\n$candidates[] = trim($s);\n\nforeach ($sArr as $key => $char) {\n\t$newArr = $sArr;\n\tif ($char == \"V\") {\n\t\t$newChar = \"K\";\n\t} else {\n\t\t$newChar = \"V\";\n\t}\n\t$newArr[$key] = $newChar;\n\t$candidates[] = implode($newArr);\n}\n\n$candidateCount = [];\nforeach($candidates as $candidate) {\n\t$candidateCount[] = substr_count($candidate, \"VK\");\n}\n\necho max($candidateCount);", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "7d9532a17f4c16d69f00804103b90c20", "src_uid": "578bae0fe6634882227ac371ebb38fc9", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$fl = STDIN;\nfscanf($fl,\"%s\",$s);\n\n$res = 0;\n\nfunction find($str){\n    $cnt = 0;\n    for ($i = 0; $i < strlen($str) - 1; $i++) {\n        if ($str[$i] == 'V' && $str[$i + 1] == 'K') {\n            $cnt++;\n        }\n    }\n    \n    return $cnt;\n}\n\nfor ($i = 0; $i < strlen($s); $i++) {\n    $s1 = substr($s, 0, $i).\"V\".substr($s, $i + 1);\n    $s2 = substr($s, 0, $i).\"K\".substr($s, $i + 1);\n    \n    $res = max($res, max(find($s1), find($s2)));\n}\n\nprintf(\"%d\\n\", $res);\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "e94725812f0e27bba0711afc0b6ca8d0", "src_uid": "578bae0fe6634882227ac371ebb38fc9", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$stdin = fopen('php://stdin', 'r');\n$v = trim(fgets($stdin));\n\n    $counter = preg_match_all(\"/VK/\", $v);\n    $v = str_replace(\"VK\", \"I\", $v);\n    $end = false;\n    for ($i = 0; $i < strlen($v) - 1; $i++) {\n        if ($v[$i] == \"V\" && $v[$i + 1] == \"V\") {\n            $counter++;\n            $end = true;\n            break;\n        }\n    }\n    if (!$end) {\n        for ($i = 0; $i < strlen($v) - 1; $i++) {\n            if ($v[$i] == \"K\" && $v[$i + 1] == \"K\") {\n                $counter++;\n                break;\n            }\n        }\n    }\n    echo $counter;\n\n", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "2d3510caa41e0aa20ece52f673aacb8f", "src_uid": "578bae0fe6634882227ac371ebb38fc9", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=fgets (STDIN);\n$c=substr_count($a,\"VK\");\n$r=str_replace(\"VK\",\"Y\",$a);\n\n$v= substr_count($r,\"VV\");\n$k= substr_count($r,\"KK\");\n\nif($v>0 OR $k>0) echo \"\".($c+1);\n    else\n    echo \"\".$c;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "ae7194bf768e1dcdbb9b827fb270d93c", "src_uid": "578bae0fe6634882227ac371ebb38fc9", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 1;\n$c = 4;\nfor($x = 1; $x <= 100; $x++)\n{\n     if($a == $x)\n     {\n          print $b;\n     }\n     else\n     {\n          $b += $c;\n          $c += 4;\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "dp", "implementation"], "code_uid": "53a67f5fe0ed97d3dc97af1c4d1bad29", "src_uid": "758d342c1badde6d0b4db81285be780c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n   $n = trim(fgets(STDIN));\n\n\n    echo pow($n, 2) + pow($n-1, 2);\n\n\n?>", "lang_cluster": "PHP", "tags": ["math", "dp", "implementation"], "code_uid": "525b9aed0c93f556e869b97efe11a822", "src_uid": "758d342c1badde6d0b4db81285be780c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\nfor ($i = 1, $r = 0; $i < $n; $i++) $r += $i;\necho $r * 4 + 1;\n", "lang_cluster": "PHP", "tags": ["math", "dp", "implementation"], "code_uid": "f08cbe3000e677059a44c93a1d1c68bf", "src_uid": "758d342c1badde6d0b4db81285be780c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input=trim(fgets(STDIN));\n$sum=0;\n$array=range(1,1000,2);\nfor ($i=0;$i<$input;$i++) { \n      $sum+=$array[$i];\n}\n$sum=$sum*2-$array[$input-1];\necho $sum;\n\n", "lang_cluster": "PHP", "tags": ["math", "dp", "implementation"], "code_uid": "971ecae6dc5be6ebc7570fd1db2e7349", "src_uid": "758d342c1badde6d0b4db81285be780c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n $n = trim(fgets(STDIN));\n $f = (2 * $n) - 1;\n $c = (($f * $f) + 1) / 2;\n echo $c;\n ?>", "lang_cluster": "PHP", "tags": ["math", "dp", "implementation"], "code_uid": "0a8978967f3cf3ec84841da59ff8a210", "src_uid": "758d342c1badde6d0b4db81285be780c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\necho $n ** 2 + ($n - 1) ** 2;\n", "lang_cluster": "PHP", "tags": ["math", "dp", "implementation"], "code_uid": "7891868303ca687727770fade96d8fc3", "src_uid": "758d342c1badde6d0b4db81285be780c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n# 1180A\n$stdin = STDIN;\n[$n] = fscanf($stdin, '%u');\n$quarter = 0;\n$quarterLimit = $n - 1;\nfor ($i = 1; $i <= $quarterLimit; $i++) {\n    $quarter += $i;\n}\necho $quarter * 4 + 1;\n", "lang_cluster": "PHP", "tags": ["math", "dp", "implementation"], "code_uid": "b80f4dd5405ddce5a9578df836f99e4e", "src_uid": "758d342c1badde6d0b4db81285be780c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$data = file_get_contents('php://stdin');\n\t\n\t$input = explode(PHP_EOL, $data);\n\t\n\t$K = $input[0];\n\t\n\t$months = explode(' ', $input[1]);\n\t\n\tsort($months);\n\t$months = array_reverse($months);\n\t\n\t$result = 0;\n\t$resultHeight = 0;\n\t\n\tforeach ($months as $monthWeight) {\n\t\tif ($K <= $resultHeight)\n\t\t\tbreak;\n\n\t\t$resultHeight += $monthWeight;\n\t\t$result++;\n\t}\n\t\n\tif ($K > $resultHeight)\n\t\t$result = -1;\n\t\n\techo $result;\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "476c15c2a49e31f902fd6c115fa692bd", "src_uid": "59dfa7a4988375febc5dccc27aca90a8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nrsort($b);\n$c = 1;\nif($a == 0)\n{\n    print \"0\";\n}\nelse\n{\n    for($x = 0; $x < 12; $x++)\n    {\n        $a -= $b[$x];  \n        if($a <= 0)\n        {\n            print $c;\n            break;\n        } \n        $c++;\n        if(($x == 11) && ($a > 0))\n        {\n            print \"-1\";\n            break;\n        }\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "0f71ffd744f3793613f4b5c4d207fd24", "src_uid": "59dfa7a4988375febc5dccc27aca90a8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$k = trim(fgets(STDIN)); if($k==0) {print 0; exit(0);}\n$a = explode(' ',trim(fgets(STDIN)));\nif(array_sum($a)<$k) {print -1; exit(0);}\nrsort($a);\n\nfor($i=0;$i<=11;$i++) {$s+=$a[$i]; if($s>=$k) break;}\n\nprint $i+1;\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "ff36ce905a9713c12662083479d4a010", "src_uid": "59dfa7a4988375febc5dccc27aca90a8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\n//$a = explode(\" \",trim(fgets($f)));\n\n$k = trim(fgets($f));\n$a = explode(\" \",trim(fgets($f)));\n\nrsort($a);\n\n$count = 0;\n\n$x = 0;\n\nwhile($k>0 && isset($a[$x])){\n    $count++;\n    $k-=$a[$x];\n    $x++;\n}\n\nif ($k>0){\n    $count = -1;\n}\n\necho $count;\n\n", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "e112023b6cd7aea29bc7971d1aa6a9dc", "src_uid": "59dfa7a4988375febc5dccc27aca90a8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n    $in = fopen('php://stdin', 'r');\n    \n    fscanf(STDIN, \"%d\", $k);\n    \n    \n    fscanf(STDIN, \"%d %d %d %d %d %d %d %d %d %d %d %d\", $a[0] , $a[1] , $a[2] , $a[3] , $a[4] , $a[5] , $a[6] , $a[7] , $a[8] , $a[9] , $a[10] , $a[11]);\n    \n    for ($i = 0; $i < 12 ; $i++)\n    {\n            for ($j = $i; $j < 12 ; $j++)\n            {\n                if ( $a[$i] < $a[$j] )\n                {\n                    $temp = $a[$i];\n                    $a[$i] = $a[$j];\n                    $a[$j] = $temp;\n                }\n            }\n    }\n    $sum = 0;\n    $i=0;\n    $tmp=0;\n    \n    for ($i = 0; $i < 12 ; $i++)\n    {\n        $sum+=$a[$i];\n        if ( $sum >= $k )\n        {\n            $tmp=1;\n            break;\n        }\n    }\n    if ($k == 0)\n        echo 0;\n    else if ( $tmp == 1)\n        echo $i+1;\n    else\n        echo -1;\n?>\n", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "d2b707b4a16cf05d8dcbba6a1b36cf28", "src_uid": "59dfa7a4988375febc5dccc27aca90a8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$_fp = fopen(\"php://stdin\", \"r\");\n\n$n = (int) trim(fgets($_fp));\n\n$a = explode(' ', trim(fgets($_fp)));\n\nrsort($a);\n\n$count = 0;\nforeach ($a as $item) {\n    if ($n <= 0) {\n        break;\n    }\n    $n -= $item;\n    $count++;\n}\nif ($n <= 0) {\n    echo $count;\n} else {\n    echo '-1';\n}\n\n", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "d6aaa30a61835b79bd0200e23e6bd3c9", "src_uid": "59dfa7a4988375febc5dccc27aca90a8", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = $a * 2;\n$d = $b * 3;\n$e = floor($c / 6);\n$f = floor($d / 6);\n$g = min($e, $f);\n$h = array();\nfor($x = 1; $x <= $g; $x++)\n{\n     if(($c + 2) <= ($d + 3))\n     {\n          $c += 2;\n          if(($c % 6 == 0) && ($h[$c] == FALSE))\n          {\n               $g++;\n               $h[$c] = TRUE;\n          }\n     }\n     else\n     {\n          $d += 3;\n          if(($d % 6 == 0) && ($h[$d] == FALSE))\n          {\n               $g++;\n               $h[$d] = TRUE;\n          }\n     }\n}\nprint max($c, $d);\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "number theory", "brute force"], "code_uid": "9c6ca40befebee6c9022ef112d74ff7d", "src_uid": "23f2c8cac07403899199abdcfd947a5a", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = $c - $a;\n$e = $c - ($a + 1);\nif($c < $a)\n{\n     print \"NO\";\n}\nelseif($c == $a)\n{\n     print \"YES\";\n}\nelseif($c > $a)\n{\n     if(($d < $b) && ($e < $b))\n     {\n          print \"NO\";\n     }\n     else\n     {\n          $f = $d % $b;\n          $g = $e % $b;\n          if(($f == 0) || ($g == 0))\n          {\n               print \"YES\";\n          }\n          else\n          {\n               print \"NO\";\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "a27f9ced7439ec2290ae37fffb25c37e", "src_uid": "3baf9d841ff7208c66f6de1b47b0f952", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$lines  = @file(\"php://stdin\");\n$data = explode(' ',$lines[0]);\n$t = $data[0];\n$p = $data[1];\n$w = $data[2];\n\nif($w - $t == 0 || \n($w >= $t + $p && ($w -$t) % $p == 0) || \n($w >= $t + $p + 1 && ($w -$t -1) % $p == 0)) \necho 'YES';\nelse echo 'NO';", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "7f6b4cb09f53727efb5840a3d7c21655", "src_uid": "3baf9d841ff7208c66f6de1b47b0f952", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = 0;\n$e = 0;\nwhile(TRUE)\n{\n     if(($a <= 0) && ($b <= 0) && ($c <= 0))\n     {\n          break;\n     }\n     else\n     {\n          if($a > 0)\n          {\n               $a -= 2;\n               if($e == 0)\n               {\n                    $d += 30;\n                    $e = 1;\n               }\n               else\n               {\n                    $d += 1;\n               }\n               if(($a <= 0) && ($b <= 0) && ($c <= 0))\n               {\n                    break;\n               }\n          }\n          else\n          {\n               $d += 1;\n          }\n          if($b > 0)\n          {\n               $b -= 2;\n               if($e == 0)\n               {\n                    $d += 30;\n                    $e = 1;\n               }\n               else\n               {\n                    $d += 1;\n               }\n               if(($a <= 0) && ($b <= 0) && ($c <= 0))\n               {\n                    break;\n               }\n          }\n          else\n          {\n               $d += 1;\n          }\n          if($c > 0)\n          {\n               $c -= 2;\n               if($e == 0)\n               {\n                    $d += 30;\n                    $e = 1;\n               }\n               else\n               {\n                    $d += 1;\n               }\n               if(($a <= 0) && ($b <= 0) && ($c <= 0))\n               {\n                    break;\n               }\n          }\n          else\n          {\n               $d += 1;\n          }\n     }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "12599a22eeecc51e30934371f3a1ad8b", "src_uid": "a45daac108076102da54e07e1e2a37d7", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$handle = fopen(\"php://stdin\", \"r\");\n\n\nfscanf($handle, \"%i %i\", $d, $e);\n\n$exs = [];\n$req = [];\n$open = [];\n\nfor ($i = 0; $i < $e; $i++) {\n\n    list($o, $s, $r) = array_map('intval', explode(' ', trim(fgets($handle))));\n\n    $exs[$s] = $i;\n    $req[$s] = $r;\n    $open[$s] = $o;\n}\n\nif (array_sum($req) > $d - $e) {\n    echo -1;\n    exit;\n}\n\n\nksort($exs);\n\n$schedule = [];\n\nfor ($i = 1; $i <= $d; $i++) {\n\n    if (isset($req[$i])) {\n\n        if ($req[$i] != 0) {\n            echo -1;\n            exit;\n        }\n\n        $schedule[] = $e + 1;\n    } else {\n\n        $needBrake = true;\n\n        foreach ($exs as $ex => $p) {\n\n            if ($req[$ex] != 0 && $open[$ex] <= $i) {\n\n                $needBrake = false;\n\n                $req[$ex]--;\n                $schedule[] = $p + 1;\n                break;\n            }\n        }\n\n        if ($needBrake) {\n            $schedule[] = 0;\n        }\n    }\n}\n\necho implode(' ', $schedule);\n", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "5d05d030f481b76938ff1f8119bffa8a", "src_uid": "02d8d403eb60ae77756ff96f71b662d3", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$sizeOfArr);\n$arr=explode(' ',trim(fgets(STDIN)));\n$targetArr=array();\n$targetArr[0]=$arr[$sizeOfArr-1];\n$k=1;\nfor ($i=$sizeOfArr-2; $i>=0 ; $i--)\n { \n \t   $count=0;\n\n\t  for ($j=0; $j <count($targetArr) ; $j++)\n\t   {       \n\t\t   \tif($targetArr[$j]!=$arr[$i])\n\t   \t    {\n\t   \t    \t$count++;\n\t   \t    \t\n\t   \t    \tif($count==count($targetArr))\n\t   \t    \t{\n\t   \t \n\t   \t    \t  $targetArr[$k++]=$arr[$i];\n\t   \t    \t}\n\t   \t    }\n       }\n }\n echo count($targetArr).\"\\n\";\nfor ($i=count($targetArr)-1; $i>=0 ; $i--)\n{\n\tif($i==0)\n\t\techo \"$targetArr[$i]\";\n\n    else\n    \techo $targetArr[$i].' ';\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4b0c86edadaf6fd3d4c1b25727d4f44f", "src_uid": "1b9d3dfcc2353eac20b84c75c27fab5a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$handle = fopen(\"php://stdin\", \"r\");\nfunction removeDuplicates($array)\n{\n    $new = [];\n\n    for ($i = count($array) - 1; $i >= 0; $i--) {\n        if (!isset($new[$array[$i]])) {\n            $new[$array[$i]] = 1;\n        }\n    }\n\n    echo count($new), PHP_EOL, implode(' ', array_reverse(array_keys($new))), PHP_EOL;\n}\n\nfscanf($handle, \"%i\", $n);\n$expenditure_temp = fgets($handle);\n$expenditure = explode(\" \", $expenditure_temp);\n$expenditure = array_map('intval', $expenditure);\nremoveDuplicates($expenditure);\n\n\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5839d269d6aa9f2c8d821f83c1ba8847", "src_uid": "1b9d3dfcc2353eac20b84c75c27fab5a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = array_reverse($b);\n$d = array_unique($c);\n$e = array_reverse($d);\nprint count($e) . \"\\n\";\nprint implode(\" \", $e);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "bc92ea7b51766efb386090730aeea2af", "src_uid": "1b9d3dfcc2353eac20b84c75c27fab5a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//First Get The Input.\n$input = file_get_contents(\"php://stdin\");\n\n$n1 = explode(\" \",$input)[0];\n$n2 = explode(\" \",$input)[1];\n\n$x1 = (int)$n1;\n$x2 = (int)$n2;\n\n$i = 0;\n\nwhile($x1 <= $x2) {\n    \n    $x1 *= 3;\n    $x2 *= 2;\n    \n    $i++;\n    \n}\n\necho $i;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0e7f605fda6b9f65e518f046729043fd", "src_uid": "a1583b07a9d093e887f73cc5c29e444a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d %d\",$w1,$w2);\n\nfor($i=0;$i<$w2;$i++)\n{\n\t$limak=$w1*3;\n\t$w1=$limak;\n\t$Bob=$w2*2;\n\t$w2=$Bob;\n\tif($limak>$Bob)\n\t{\n\t\techo $i+1;\n\t\tbreak;\n\t}\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "668db48e009cfb32538fd0f925ecc247", "src_uid": "a1583b07a9d093e887f73cc5c29e444a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\n$str = readline();\n\n$arr = explode(' ', $str);\n\n$counter = 0;\n\nwhile($arr[0] <= $arr[1]) {\n    $arr[0] = $arr[0]*3;\n    $arr[1] = $arr[1]*2;\n    $counter++;\n}\n\necho $counter;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4e3610c57dffc51688d04c063f5d1aa5", "src_uid": "a1583b07a9d093e887f73cc5c29e444a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $a, $b);\n\n$counter = 0;\nwhile ($a <= $b) {\n    $a *= 3;\n    $b *= 2;\n    $counter++;\n}\necho $counter;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e2484f1219d8c24fa011b4efac121750", "src_uid": "a1583b07a9d093e887f73cc5c29e444a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * Secdra @2020\n */\n\nfscanf(STDIN, \"%d %d\", $a, $b);\n$ans = 0;\nwhile ($a <= $b){\n    $a*=3;\n    $b*=2;\n    $ans++;\n}\nprintf(\"%d\", $ans);\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b1657b85c11f79d2c31800ec5d7832e5", "src_uid": "a1583b07a9d093e887f73cc5c29e444a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$x = explode(\" \", readline());\nfor($i=1;;$i++)\n{\n\t$x[0] *= 3;\n\t$x[1] *= 2;\n\tif($x[0] > $x[1])\n\t\tdie(\"$i\\n\");\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "75776cbed9748025f91468588cd4bed0", "src_uid": "a1583b07a9d093e887f73cc5c29e444a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//=====================================\n// link: https://codeforces.com/contest/791/problem/A\n//=====================================\n\n// get inputs\nlist($limak, $bob) = explode(' ', trim(fgets(STDIN)));\n\n// solution\nif($limak == $bob) {\n    echo 1 . \"\\n\";\n\n    exit;\n}\n\n$years = 0;\n\nwhile ($limak <= $bob) {\n    $years++;\n    $limak *= 3;\n    $bob *= 2;\n}\n\necho $years . \"\\n\";\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "70d2a3e1cdd6d168d0b654567d2bfae0", "src_uid": "a1583b07a9d093e887f73cc5c29e444a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $a, $b);\n$n = 0;\n   while ($b >= $a){\n      $b = $b * 2;\n      $a = $a * 3;\n      $n ++;\n   }\n   echo ($n);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "8647e6e5e581fa67468cd461a43e22ee", "src_uid": "a1583b07a9d093e887f73cc5c29e444a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n$arr = explode(' ',readline());\n$a=$arr[0];\n$b=$arr[1];\nwhile($a<=$b)\n{\n    $a*=3;\n    $b*=2;\n    $i++;\n}\necho $i;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "21a3b337b4f4ef1303f21e37de096915", "src_uid": "a1583b07a9d093e887f73cc5c29e444a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($a, $b) = explode(' ', trim(fgets(STDIN)));\n$c=0;\nwhile($a <= $b){ $a*=3; $b*=2; $c++; }\necho $c;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6ad00ddec47f6746cedf7abf8c1e947c", "src_uid": "a1583b07a9d093e887f73cc5c29e444a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\nlist($a, $b, $c, $d) = explode(' ', fgets(STDIN));\n//echo \"$a $b $c $d<-\\n\";\n$n = 1;\n$d = intval($d);\nif ($b <> $a) $n++;\nif ($c <> $a and $c <> $b) $n++;\nif ($d <> $a and $d <> $b and $d <> $c) $n++;\n$n = 4 - $n;\necho \"$n\\n\";\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "39e3c82674d9c232d42b87310628916b", "src_uid": "38c4864937e57b35d3cce272f655e20f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\n$b = array_unique($a);\n$c = count($a) - count($b);\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e40df23a231a93524c90ff197eeef4fd", "src_uid": "38c4864937e57b35d3cce272f655e20f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = explode(\" \",trim(fgets(STDIN)));\necho 4 - count(array_unique($line));", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "09fcb8856a81ed68a8812a5d52334e8d", "src_uid": "38c4864937e57b35d3cce272f655e20f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//228A: Is your horseshoe on the other hoof?\n$colors = explode(\" \", trim(fgets(STDIN)));\n$nodoubles = array_unique($colors);\n$howmanycolors = count($nodoubles);\necho 4 - $howmanycolors;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b9a558131564ac0953b13fece84eb728", "src_uid": "38c4864937e57b35d3cce272f655e20f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//=====================================\n// link: https://codeforces.com/contest/228/problem/A\n//=====================================\n\n// get inputs\n$colors = explode(' ', trim(fgets(STDIN)));\n\n// solution\n$unique_colors = count(array_unique($colors));\n\necho 4 - $unique_colors . \"\\n\";\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "73315240f18cf005712c814156ea5b12", "src_uid": "38c4864937e57b35d3cce272f655e20f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = explode(\" \", trim(fgets(STDIN)));\n$has = array_unique($n);\nprint (4 - count($has));\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "46e26603bc0e888490211222132249e9", "src_uid": "38c4864937e57b35d3cce272f655e20f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tlist($a,$b,$c,$d)=explode(' ',trim(fgets(STDIN)));\n\t$ar=array();\n\t$ar[$a]=1;\n\t$r=1;\n\tif(!isset($ar[$b]))\n\t{\n\t\t$ar[$b]=1;\n\t\t$r++;\n\t}\n\tif(!isset($ar[$c]))\n\t{\n\t\t$ar[$c]=1;\n\t\t$r++;\n\t}\n\tif(!isset($ar[$d]))\n\t{\n\t\t$r++;\n\t\t$ar[$d]=1;\n\t}\n\t$r=4-$r;\n\tprint $r.\"\\n\";\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "12e70fe6e73cc305303584e262488958", "src_uid": "38c4864937e57b35d3cce272f655e20f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\n\n$s = trim(fgets($f));\n$a = explode(\" \",$s);\n$b = array();\nforeach($a as $x){\n    $b[$x]=1;\n}\n\necho(4 - count($b));\n\n\n\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "8cbc01c9cb9a437f5e64ce53039067ea", "src_uid": "38c4864937e57b35d3cce272f655e20f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$horseshoes = fgets(STDIN);\n\n$horseshoes = trim($horseshoes);\n$horseshoes = explode(' ', $horseshoes);\n\nif(count($horseshoes) == count(array_unique($horseshoes))){\n\t// если массив изначально содержит только уникальные значения\n\techo 0;\n} else {\n\tif (count(array_unique($horseshoes)) == 3) {\n\t\techo 1;\n\t} elseif(count(array_unique($horseshoes)) == 2) {\n\t\techo 2;\n\t} elseif (count(array_unique($horseshoes)) == 1) {\n\t\techo 3;\n\t}\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "648421ff1fa7023613526e643b0cefd1", "src_uid": "38c4864937e57b35d3cce272f655e20f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction check($arr, $elem) {\n    for ($i = 0; $i < count($arr); $i++) {\n        if (intVal($arr[$i]) == intVal($elem)) return true;\n    }\n    return false;\n}\n\n$in = fgets(STDIN);\n$in = explode(' ', $in);\n$arr = array();\n$count = 0;\nfor ($i = 0; $i < 4; $i++) {\n    if (!check($arr, $in[$i])) $arr[] = $in[$i];\n    else $count++;\n}\n\necho $count;\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c1432065f9e64b39640478df1708f58b", "src_uid": "38c4864937e57b35d3cce272f655e20f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$data = explode(' ', trim(fgets(STDIN)));\n\t$counts = array();\n\tforeach ($data as $el){\n\t\t$counts[$el]++;\n\t}\n\t$hasFoot = $head = $body = 0;\n\tforeach ($counts as $k => $el){\n\t\tif ($el >= 4){\n\t\t\t$hasFoot = true;\n\t\t\tif ($el >= 5) $head = $k;\n\t\t\tif ($el == 6) $body = $k; \n\t\t}else{\n\t\t\tif ($el == 2){\n\t\t\t\t$head = $body = $k;\n\t\t\t}else{\n\t\t\t\tif ($head == 0) $head = $k;\n\t\t\t\telse $body = $k;\n\t\t\t}\n\t\t\t\n\t\t}\n\t}\n\techo $hasFoot ? $body == $head ? 'Elephant' : 'Bear' : 'Alien';\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "86e7169cbd3706026c983629b15b2bb9", "src_uid": "43308fa25e8578fd9f25328e715d4dd6", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$l = explode(\" \", trim(fgets(STDIN)));\n$k = $q = 0;\nfor($i = 0; $i < 6; $i++){\n\t$a[$l[$i]]++;\n}\nfor($i = 1;  $i < 10; $i++){\n\tif($a[$i] == 6){\n\t\techo \"Elephant\";\n\t\texit;\n\t}\n\tif($a[$i] >= 4) $k++;\n\tif($a[$i] == 2) $q++;\n}\nif($k && $q){\n\techo \"Elephant\";\n}else if($k)\n\techo \"Bear\";\nelse echo \"Alien\";\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "57e39d71498daec3463a420649c6c3e2", "src_uid": "43308fa25e8578fd9f25328e715d4dd6", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\narray_push($a, 10);\nsort($a);\n$b = array_unique($a);\n$c = array_keys($b);\n$d = array();\n$f = array();\nfor($x = 0; $x < count($c) - 1; $x++)\n{\n    $e = $c[$x + 1] - $c[$x];\n    array_push($d, $e);\n    array_push($f, $b[$c[$x]]);\n}\nif(count($d) == 3)\n{\n    if(($d[0] == 4) && ($f[1] != $f[2]))\n    {\n        print \"Bear\";\n    }\n    elseif(($d[1] == 4) && ($f[0] != $f[2]))\n    {\n        print \"Bear\";\n    }\n    elseif(($d[2] == 4) && ($f[0] != $f[1]))\n    {\n        print \"Bear\";\n    }\n    elseif(($d[0] == 4) && ($f[1] == $f[2]))\n    {\n        print \"Elephant\";\n    }\n    elseif(($d[1] == 4) && ($f[0] == $f[2]))\n    {\n        print \"Elephant\";\n    }\n    elseif(($d[2] == 4) && ($f[0] == $f[1]))\n    {\n        print \"Elephant\";\n    }\n    else\n    {\n        print \"Alien\";\n    }\n}\nelseif(count($d) == 2)\n{\n    if($d[0] == 4)\n    {\n        print \"Elephant\";\n    }\n    elseif($d[1] == 4)\n    {\n        print \"Elephant\";\n    }\n    elseif($d[0] == 5)\n    {\n        print \"Bear\";\n    }\n    elseif($d[1] == 5)\n    {\n        print \"Bear\";\n    }\n    else\n    {\n        print \"Alien\";\n    }\n}\nelseif(count($d) == 1)\n{\n    print \"Elephant\";\n}\nelse\n{\n    print \"Alien\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "375ede75ee582b38db1371a054cec22a", "src_uid": "43308fa25e8578fd9f25328e715d4dd6", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$in = trim(fgets(STDIN));\n//$in = 'httprruewrwer';\n\n//��������\nif(strpos($in,'http')===0){\n\t$w = 'http';\n}else{\n\t$w = 'ftp';\n}\n$in = substr($in,strlen($w));\n$w .= '://';\n\n//�����\n$r = strpos(substr($in,1),'ru');\nif($r >= 0){\n\t$w .= substr($in,0,$r+1);\n}\n$w .= '.ru';\n$in = substr($in,($r+3));\n\nif($in<>''){\n\t$w .= '/'.$in;\n}\n\necho $w;\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "8b9710b4ea8cd4a5dc5f84b9e5e4e484", "src_uid": "4c999b7854a8a08960b6501a90b3bba3", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$cin = trim(fgets(STDIN));\n\nif(strpos($cin,'http')===0)\n    $ans = 'http';\nelse\n    $ans = 'ftp';\n$idx = strlen($ans);\n\n$cin = substr($cin,$idx);\n$ans .= '://';\n\n$ru = strpos(substr($cin,1),'ru');\nif($ru >= 0){\n    $ans .= substr($cin,0,$ru+1);\n}\n$ans .= '.ru';\n$cin = substr($cin,($ru+3));\n\nif($cin<>''){\n    $ans .= '/'.$cin;\n}\n\necho $ans;\n\n?>\n\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "e76eb5c39ea29b4c1591a4dcf90a0f75", "src_uid": "4c999b7854a8a08960b6501a90b3bba3", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n# 1143B\n$start = microtime(true);\n$arrayMultiply = function(array $arr){\n    $res = 1;\n    array_walk($arr, function($i) use (&$res){$res *= $i;});\n    return $res;\n};\n\n$n = trim(fgets(STDIN));\n$nLength = strlen($n);\nif ($nLength === 1) {\n    die($n);\n}\nif (substr($n, 1, $nLength - 1) === str_repeat('9', $nLength - 1)) {\n    die((string)$arrayMultiply(str_split($n)));\n}\n$n = str_split($n);\n$max = $arrayMultiply($n);\nfor ($i = 0; $i < $nLength - 1; $i++) {\n    $arr = $n;\n    $arr[$i] = ((int)$arr[$i]) - 1;\n    for ($j = $i + 1; $j < $nLength; $j++) {\n        $arr[$j] = 9;\n    }\n    $arr = array_reverse($arr);\n    for ($j = 0; $j < $nLength - 1; $j++) {\n        if ($arr[$j] === 0) {\n            $arr[$j] = 9;\n            $arr[$j + 1]--;\n        }\n        if ($arr[$j] === -1) {\n            $arr[$j] = 9;\n            $arr[$j + 1]--;\n        }\n    }\n    if ($arr[$nLength-1] === 0) {\n        unset($arr[$nLength-1]);\n    }\n    $arr = array_reverse($arr);\n    $max = max($max, $arrayMultiply($arr));\n}\n\necho $max;\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "2b11bad40666d9fb40471cec3e9f0bbb", "src_uid": "38690bd32e7d0b314f701f138ce19dfb", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n$a = explode(' ', fgets(STDIN));\n$a[count($a) -1] = intval($a[count($a) -1]);\nsort($a);\n//print_r($a);\nif (($a[3] < $a[2] + $a[1]) or ($a[3] < $a[2] + $a[0]) or ($a[2] < $a[1] + $a[0]))\n    echo \"TRIANGLE\";\nelse if (($a[3] == $a[2] + $a[1]) or ($a[3] == $a[2] + $a[0]) or ($a[2] == $a[1] + $a[0]))\n    echo \"SEGMENT\";\nelse \n    echo \"IMPOSSIBLE\";\n\n?> \n    ", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "b5249a7e0f20a6a9711832b673d67294", "src_uid": "8f5df9a41e6e100aa65b9fc1d26e447a", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction tri($i,$j,$k){\n return $i+$j>$k && $i+$k>$j && $j+$k>$i;\n}\n\nfunction seg($i,$j,$k){\n return $i+$j==$k || $i+$k==$j || $j+$k==$i;\n}\n\nlist($a, $b, $c, $d) = explode(' ', trim(fgets(STDIN)));\n\n\nif(tri($a,$b,$c) or tri($a,$b,$d) or tri($a,$c,$d) or tri($b,$c,$d)){\n print 'TRIANGLE';\n exit(0);\n}\n\nif(seg($a,$b,$c) or seg($a,$b,$d) or seg($a,$c,$d) or seg($b,$c,$d)){\n print 'SEGMENT';\n exit(0);\n}\n\nprint 'IMPOSSIBLE';\n?>", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "e0ba7feee54e9aad5c0b43f1f336f7dd", "src_uid": "8f5df9a41e6e100aa65b9fc1d26e447a", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n// TRIANGLE --------------------------------------------------\nif((($c >= (max($a, $b) - min($a, $b) + 1)) && ($c <= ($a + $b - 1))) || (($d >= (max($a, $b) - min($a, $b) + 1)) && ($d <= ($a + $b - 1))))\n{\n    print \"TRIANGLE\";\n}\nelseif((($b >= (max($a, $c) - min($a, $c) + 1)) && ($b <= ($a + $c - 1))) || (($d >= (max($a, $c) - min($a, $c) + 1)) && ($d <= ($a + $c - 1))))\n{\n    print \"TRIANGLE\";\n}\nelseif((($b >= (max($a, $d) - min($a, $d) + 1)) && ($b <= ($a + $d - 1))) || (($c >= (max($a, $d) - min($a, $d) + 1)) && ($c <= ($a + $d - 1))))\n{\n    print \"TRIANGLE\";\n}\nelseif((($a >= (max($b, $c) - min($b, $c) + 1)) && ($a <= ($b + $c - 1))) || (($d >= (max($b, $c) - min($b, $c) + 1)) && ($d <= ($b + $c - 1))))\n{\n    print \"TRIANGLE\";\n}\nelseif((($a >= (max($b, $d) - min($b, $d) + 1)) && ($a <= ($b + $d - 1))) || (($c >= (max($b, $d) - min($b, $d) + 1)) && ($c <= ($b + $d - 1))))\n{\n    print \"TRIANGLE\";\n}\nelseif((($a >= (max($c, $d) - min($c, $d) + 1)) && ($a <= ($c + $d - 1))) || (($b >= (max($c, $d) - min($c, $d) + 1)) && ($b <= ($c + $d - 1))))\n{\n    print \"TRIANGLE\";\n}\n// SEGMENT --------------------------------------------------\nelseif((($c == (max($a, $b) - min($a, $b))) || ($c == ($a + $b))) || (($d == (max($a, $b) - min($a, $b))) || ($d == ($a + $b))))\n{\n    print \"SEGMENT\";\n}\nelseif((($b == (max($a, $c) - min($a, $c))) || ($b == ($a + $c))) || (($d == (max($a, $c) - min($a, $c))) || ($d == ($a + $c))))\n{\n    print \"SEGMENT\";\n}\nelseif((($b == (max($a, $d) - min($a, $d))) || ($b == ($a + $d))) || (($c == (max($a, $d) - min($a, $d))) || ($c == ($a + $d))))\n{\n    print \"SEGMENT\";\n}\nelseif((($a == (max($b, $c) - min($b, $c))) || ($a == ($b + $c))) || (($d == (max($b, $c) - min($b, $c))) || ($d == ($b + $c))))\n{\n    print \"SEGMENT\";\n}\nelseif((($a == (max($b, $d) - min($b, $d))) || ($a == ($b + $d))) || (($c == (max($b, $d) - min($b, $d))) || ($c == ($b + $d))))\n{\n    print \"SEGMENT\";\n}\nelseif((($a == (max($c, $d) - min($c, $d))) || ($a == ($c + $d))) || (($b == (max($c, $d) - min($c, $d))) || ($b == ($c + $d))))\n{\n    print \"SEGMENT\";\n}\n// IMPOSSIBLE --------------------------------------------------\nelse\n{\n    print \"IMPOSSIBLE\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "351a10bb8304e824796e68d2ce089823", "src_uid": "8f5df9a41e6e100aa65b9fc1d26e447a", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n    $stdin = fopen('php://stdin', 'r');\n    $string = trim(fgets($stdin));\n    $arr = explode(\" \", $string);\n    sort($arr);\n    $triang = is_triangle($arr[0], $arr[1], $arr[2]) || is_triangle($arr[1], $arr[2], $arr[3]);\n    $segment = is_segment($arr[0], $arr[1], $arr[2]) || is_segment($arr[1], $arr[2], $arr[3]);\n    if ($triang) {\n        echo 'TRIANGLE';\n    } elseif ($segment) {\n        echo 'SEGMENT';\n    } else {\n        echo 'IMPOSSIBLE';\n    }\n\n\nfunction is_triangle($a, $b, $c) {\n    return $a + $b > $c;\n}\n\nfunction is_segment($a, $b, $c) {\n    return $a + $b == $c;\n}\n", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "5b95d295f783c657265f58b214e7e7c8", "src_uid": "8f5df9a41e6e100aa65b9fc1d26e447a", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tdefine('TRI', 3);\n\tdefine('SEG', 2);\n\tdefine('IMP', 1);\n\t$fr = fopen(\"php://stdin\",\"r\");\n\t$input = fgets($fr);\n\t$t = array(0, 0, 0, 0);\n\tsscanf($input, '%d %d %d %d', $t[0], $t[1], $t[2], $t[3]);\n\tfclose ($fr);\n\t$sol = 0;\n\tfor ( $i = 0; $i < 4; $i+= 1 )\n\t{\n\t\t$tri = array();\n\t\tfor ( $j = 0; $j < 4; $j+= 1 )\n\t\t{\n\t\t\tif ( $i != $j )\n\t\t\t\t$tri[] = $t[$j];\n\t\t}\n\t\tsort($tri, SORT_NUMERIC);\n\t\tif ( ($tri[0] + $tri[1]) > $tri[2] )\n\t\t{\n\t\t\tdie('TRIANGLE');\n\t\t\t$sol = max($sol, TRI);\n\t\t}\n\t\telseif ( ($tri[0] + $tri[1]) == $tri[2] )\n\t\t\t$sol = max($sol, SEG);\n\t\telse\n\t\t\t$sol = max($sol, IMP);\n\t}\n\tswitch ($sol)\n\t{\n\t\tcase TRI:\n\t\t\techo 'TRIANGLE';\n\t\t\tbreak;\n\t\tcase SEG:\n\t\t\techo 'SEGMENT';\n\t\t\tbreak;\n\t\tdefault:\n\t\t\techo 'IMPOSSIBLE';\n\t\t\tbreak;\n\t}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "1e0f364203e9f05436106f3d1b1d5930", "src_uid": "8f5df9a41e6e100aa65b9fc1d26e447a", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nerror_reporting(0);\n\nsolve();\n\nfunction solve(){\n\n\t//$handle = @fopen(\"input.txt\", \"r\");\n\t//$d = explode(\" \",rtrim(fgets($handle)));\n\n\t$d = explode(\" \",rtrim(fgets(STDIN)));\n\t$len = count($d);\n\t\n\t$tri = false;\n\t$seg = false;\n\tfor ($i = 0; $i < $len - 2; $i++)\n\t{\n\t\tfor ($j = $i + 1; $j < $len - 1; $j++)\n\t\t{\n\t\t\tfor ($k = $j + 1; $k < $len; $k++)\n\t\t\t{\n\n\t\t\t\tif (abs($d[$j] - $d[$k]) < $d[$i] && $d[$j] + $d[$k] > $d[$i])\n\t\t\t\t{\n\t\t\t\t\t\n\t\t\t\t\t$tri = true;\n\t\t\t\t\tbreak;\n\t\t\t\t\t\n\t\t\t\t} else if ($d[$j] + $d[$k] == $d[$i] || $d[$j] + $d[$i] == $d[$k] || $d[$i] + $d[$k] == $d[$j])\n\t\t\t\t{\n\t\t\t\t\t$seg = true;\n\t\t\t\t}\n\t\t\t}\n\t\t} \n\t}\n\n\tif ($tri) print(\"TRIANGLE\");\n\telse if ($seg) print(\"SEGMENT\");\n\telse print(\"IMPOSSIBLE\");\n}\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "d20f29a176dd262577b655c381e9ea42", "src_uid": "8f5df9a41e6e100aa65b9fc1d26e447a", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction debug($data, $die = true) {\n    echo '<pre>';\n\n    if (is_array($data)) {\n        print_r($data);\n    } else {\n        var_dump($data);\n    }\n\n    if ($die) {\n        die();\n    }\n\n    echo '</pre>';\n}\n\n$stdin = @fopen('data.txt', 'r');\nif (!$stdin) {\n    $stdin = fopen('php://stdin', 'r');\n}\n\nfunction g() {\n    global $stdin;\n    return trim(fgets($stdin));\n}\n\n/****************************************************** Solving block *****************************************************/\n$sticks = explode(' ', g());\nsort($sticks);\nlist($a, $b, $c, $d) = $sticks;\n\nfunction triangle($a, $b, $c) {\n    return $a + $b > $c;\n}\n\nfunction segment ($a, $b, $c) {\n    return $a + $b == $c;\n}\n\n$triangle = triangle($a, $b, $c) || triangle($b, $c, $d);\n$segment = segment($a, $b, $c) || segment($b, $c, $d);\n\nif($triangle) {\n    echo 'TRIANGLE';\n} else if($segment) {\n    echo 'SEGMENT';\n} else {\n    echo 'IMPOSSIBLE';\n}\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "fafb881d4bb3dc2468447731d479be3f", "src_uid": "8f5df9a41e6e100aa65b9fc1d26e447a", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$months = array(1 => \"January\", 2 => \"February\", 3 => \"March\", 4 => \"April\", 5 => \"May\", 6 => \"June\", 7 => \"July\", 8 => \"August\", 9 => \"September\", 10 => \"October\", 11 => \"November\", 12 => \"December\");\nfscanf(STDIN, \"%s\", $name);\nfscanf(STDIN, \"%d\", $plus);\n$current = array_search($name, $months);\n$current += $plus;\nwhile($current>12) $current -= 12;\necho $months[$current];\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b761980358a437ee1d89cdf9b942d47e", "src_uid": "a307b402b20554ce177a73db07170691", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array(\" \", \"January\", \"February\", \"March\", \"April\", \"May\", \"June\", \"July\", \"August\", \"September\", \"October\", \"November\", \"December\");\nunset($c[0]);\n$d = array_search($a, $c);\n$b += $d;\n$e = $b % 12;\nif($e == 0)\n{\n    $e = 12;\n}\nprint $c[$e];\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "74e24d476b31cc3498c66bb902c4de5f", "src_uid": "a307b402b20554ce177a73db07170691", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\nsort($c);\n$d = 1;\nfor($x = 0; $x < $a - 1; $x++)\n{\n     $e = 1;\n     for($y = $x + 1; $y < $a; $y++)\n     {\n          $f = $c[$y] - $c[$x];\n          if($f <= $b)\n          {\n               $e++;\n          }\n          else\n          {\n               break;\n          }\n     }\n     $d = max($d, $e);\n}\nprint $a - $d;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "sortings", "greedy"], "code_uid": "0b38ac1596e0f83eb6afde52606b80fa", "src_uid": "6bcb324c072f796f4d50bafea5f624b2", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN , \"%s\" , $s);\nfscanf(STDIN , \"%s\" , $t);\n$j=0;\nfor($i=0;$i<strlen($t);$i++) if($t[$i]==$s[$j]) $j++;\necho $j+1;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "11fa48dc114449f270f183c453317c9c", "src_uid": "f5a907d6d35390b1fb11c8ce247d0252", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction cin()\n{\n\t$row = explode(\" \", trim(fgets(STDIN)));\n\treturn $row[0];\n}\n$row1 = cin();\n$row2 = cin();\n$total = strlen($row2);\nfor($a = 0, $b = 0; $b < $total; ++$b)\n{\n\tif($row1[$a] == $row2[$b]) $a++;\n}\n$a++;\necho $a.\"\\n\";\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ae672f156636a74f9b12d1e9f748ab50", "src_uid": "f5a907d6d35390b1fb11c8ce247d0252", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//=====================================\n// link: https://codeforces.com/contest/265/problem/A\n//=====================================\n\n// get inputs\n$stons       = trim(fgets(STDIN));\n$instructions = trim(fgets(STDIN));\n\n// solution\n$position = 0;\n\nfor ($i=0; $i < strlen($instructions); $i++) {\n    if($stons[$position] == $instructions[$i]) {\n        $position++;\n    }\n}\n\necho $position + 1 . \"\\n\";\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7698e4ce66fdbde8aea0c515c111429a", "src_uid": "f5a907d6d35390b1fb11c8ce247d0252", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%s\", $s);\n    fscanf(STDIN, \"%s\", $t);    \n    $idx = 0;\n    for ($i = 0; $i < strlen($t); $i ++) if ($t[$i] == $s[$idx]) $idx++;\n    printf(\"%d\", $idx + 1);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b1ceda7eb17298c139267a5e58603a79", "src_uid": "f5a907d6d35390b1fb11c8ce247d0252", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//ზოგი აფთარსა დააბამს, კაცი მისაგან კლულია.\n\n//                               მედა რუსთაველი\n\n\n$first = trim(fgets(STDIN));\n$second = trim(fgets(STDIN));\n\n$vezirmaMomakhsena = 0;\n\nfor($i= 0; $i < strlen($second);$i++)\n    if($first[$vezirmaMomakhsena]==$second[$i])\n        $vezirmaMomakhsena++;\n\necho ++$vezirmaMomakhsena;\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5b029a6a88ab698361fb4d21556ac5bf", "src_uid": "f5a907d6d35390b1fb11c8ce247d0252", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = str_split(trim(fgets(STDIN)));\narray_unshift($a, \" \");\nunset($a[0]);\n$b = str_split(trim(fgets(STDIN)));\narray_unshift($b, \" \");\nunset($b[0]);\n$c = 1;\nfor($x = 1; $x <= count($b); $x++)\n{\n    if($a[$c] == $b[$x])\n    {\n        $c++;\n    }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "de38c74b31a3a025a92b0a70d05ebcdb", "src_uid": "f5a907d6d35390b1fb11c8ce247d0252", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// $f = file('in.txt');\n// $f2 = fopen('out.txt', 'w+');\n$f = file('php://stdin');\n$f2 = fopen('php://stdout', 'w+');\n$l = $f[0];\n$r = $f[1];\n$i = 1;\nwhile ($r != '') {\n\tif ($r[0] == $l[$i-1]) {\n\t\t$i++;\n\t}\n\t$r= substr($r, 1);\n}\nfwrite($f2, $i);\nfclose($f2);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "aa05c54abc678b9a0223a04262a9a682", "src_uid": "f5a907d6d35390b1fb11c8ce247d0252", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// Пиксели\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$m1 = array($a, $b, $c,);\n$d = 0; // количество битв\nif((($a == 0) && ($b == 0) && ($c == 0)) || (($a == 0) && ($b == 0)) || (($a == 0) && ($c == 0)) || (($b == 0) && ($c == 0)))\n{\n    print \"0\";\n}\nelseif($a == $b)\n{\n    print $a;\n}\nelseif($b == $c)\n{\n    print $b;\n}\nelseif($a == $c)\n{\n    print $c;\n}\nelse\n{\n    rsort($m1);\n    if((($m1[0] - $m1[1]) % 2 == 0) && (($m1[0] - $m1[2]) % 2 != 0))\n    {\n        $e = ($m1[0] + $m1[1]) / 2; // числа всречи\n        $f = $m1[0] - $e; // количество ходов до чисел встречи\n        if($m1[2] < $f)\n        {\n            $g = $f - $m1[2];\n            $d = $m1[2] + (($m1[0] - $m1[2]) - ($m1[1] + $m1[2])) + $m1[1] + $m1[2];\n            print $d;      \n        }\n        else\n        {\n            $d = $f + $e;\n            print $d;\n        }\n    }\n    elseif((($m1[0] - $m1[1]) % 2 != 0) && (($m1[1] - $m1[2]) % 2 == 0))\n    {\n        $e = ($m1[1] + $m1[2]) / 2; // числа всречи\n        $f = $m1[1] - $e; // количество ходов до чисел встречи\n        if($m1[0] < $f)\n        {\n            $g = $f - $m1[0];\n            $d = $m1[0] + (($m1[1] - $m1[0]) - ($m1[2] + $m1[0])) + $m1[2] + $m1[0];\n            print $d;      \n        }\n        else\n        {\n            $d = $f + $e;\n            print $d;\n        }\n    }\n    elseif((($m1[0] - $m1[2]) % 2 == 0) && (($m1[0] - $m1[1]) % 2 != 0))\n    {\n        $e = ($m1[0] + $m1[2]) / 2; // числа всречи\n        $f = $m1[0] - $e; // количество ходов до чисел встречи\n        if($m1[1] < $f)\n        {\n            $g = $f - $m1[1];\n            $d = $m1[1] + (($m1[0] - $m1[1]) - ($m1[2] + $m1[1])) + $m1[2] + $m1[1];\n            print $d;      \n        }\n        else\n        {\n            $d = $f + $e;\n            print $d;\n        }\n    }\n    elseif((($m1[0] - $m1[1]) % 2 == 0) && (($m1[1] - $m1[2]) % 2 == 0))\n    {\n        $e1 = ($m1[0] + $m1[1]) / 2; // числа всречи\n        $f1 = $m1[2] - $e1; // количество ходов до чисел встречи\n        $e2 = ($m1[1] + $m1[2]) / 2; // числа всречи\n        $f2 = $m1[0] - $e2; // количество ходов до чисел встречи\n        if(($f1 + $e1) >= ($f2 + $e2))\n        {\n            $e = ($m1[0] + $m1[1]) / 2; // числа всречи\n            $f = $m1[0] - $e; // количество ходов до чисел встречи\n            if($m1[2] < $f)\n            {\n                $g = $f - $m1[2];\n                $d = $m1[2] + (($m1[0] - $m1[2]) - ($m1[1] + $m1[2])) + $m1[1] + $m1[2];\n                print $d;      \n            }\n            else\n            {\n                $d = $f + $e;\n                print $d;\n            }\n        }\n        elseif(($f1 + $e1) < ($f2 + $e2))\n        {\n            $e = ($m1[1] + $m1[2]) / 2; // числа всречи\n            $f = $m1[1] - $e; // количество ходов до чисел встречи\n            if($m1[0] < $f)\n            {\n                $g = $f - $m1[0];\n                $d = $m1[0] + (($m1[1] - $m1[0]) - ($m1[2] + $m1[0])) + $m1[2] + $m1[0];\n                print $d;      \n            }\n            else\n            {\n                $d = $f + $e;\n                print $d;\n            }\n        }\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "d35eafde20ced3af17b9856fa3497a81", "src_uid": "b8008caf788336775cb8ebb76478b04c", "difficulty": 2100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = array($a, $b, $c);\nsort($d);\nif((($d[0] % 2) == ($d[1] % 2)) && (($d[1] % 2) == ($d[2] % 2)) && (($d[0] % 2) == ($d[2] % 2)))\n{\n    print $d[1];\n}\nelse\n{\n    if(($d[0] % 2) == ($d[1] % 2))\n    {\n        print $d[1];\n    }\n    elseif(($d[0] % 2) == ($d[2] % 2))\n    {\n        print $d[2];\n    }\n    else\n    {\n        print $d[2];\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "b17f13b988776bb2de6f7eca73490a3a", "src_uid": "b8008caf788336775cb8ebb76478b04c", "difficulty": 2100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = fgets(STDIN);\n$k = explode(\" \", trim($s)); $i=0; $p=array(); $o=array();\nfor ($i;$i<=2;$i++)\n {if (($k[$i]%2)==0) { array_push($p,$k[$i]);} else { array_push($o,$k[$i]);};};\n if ((count($p)==2)||(count($p)==3)) {sort($p); print($p[1]);};\n if ((count($o)==2)||(count($o)==3)) {sort($o); print($o[1]);};\n if ((count($p)==1)&(count($o)==1)) {print $p[0];};\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "c4b4cd4a4854f3f1bf645b7244f1a46b", "src_uid": "b8008caf788336775cb8ebb76478b04c", "difficulty": 2100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\n$b = array(0);\nfor($x = 0; $x < 14; $x++)\n{\n     $c = $a;\n     if($c[$x] > 0)\n     {\n          $d = floor($c[$x] / 14);\n          $e = $c[$x] % 14;\n          $c[$x] = 0;\n          $f = $x + 1;\n          if($f == 14)\n          {\n               $f == 0;\n          }\n          $g = 1;\n          while(TRUE)\n          {\n               if($f == 14)\n               {\n                    $f = 0;\n               }\n               $c[$f] += $d;\n               if($e > 0)\n               {\n                    $c[$f]++;\n                    $e--;\n               }\n               $f++;\n               if($g == 14)\n               {\n                    break;\n               }\n               else\n               {\n                    $g++;\n               }\n          }\n          $h = 0;\n          for($y = 0; $y < 14; $y++)\n          {\n               $i = $c[$y] % 2;\n               if($i == 0)\n               {\n                    $h += $c[$y];\n               }\n          }\n          $b[count($b)] = $h;\n     }\n}\nprint max($b);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "5abb7d7ccf2a2408ef788ebc880bae52", "src_uid": "1ac11153e35509e755ea15f1d57d156b", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n\n$a = array(8,8,8,8,8,8,8,8);\n$b = array(8,8,8,8,8,8,8,8);\n\n$a_min = 8;\n\nfor ($j = 0; $j < 8; $j++) {\n\t$s = trim(fgets($f));\n\n\tfor ($i = 0; $i < 8; $i++) {\n\t\tif ($s[$i] == 'W') {\n\t\t\tif ($a[$i] == 8 and $a[$i] > 0) {\n\t\t\t\tif ($a_min == 8) $a_min = $j;\n\t\t\t\t$a[$i] = $j;\n\t\t\t}\n\n\t\t\t$b[$i] = -1;\n\t\t}\n\t\telseif ($s[$i] == 'B') {\n\t\t\t$b[$i] = 7-$j;\n\n\t\t\tif ($a[$i] == 8) $a[$i] = -1;\n\t\t}\n\t}\n}\n\n\n$a_min = 8;\n$b_min = 8;\nfor ($j = 0; $j < 8; $j++) {\n\tif ($a[$j] > 0 and $a[$j] < $a_min) $a_min = $a[$j];\n\tif ($b[$j] > 0 and $b[$j] < $b_min) $b_min = $b[$j];\n}\n\nif ($b_min < $a_min) print 'B'; else print 'A';\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "52fd3e73d204c1e67a4db0e34cc58c04", "src_uid": "0ddc839e17dee20e1a954c1289de7fbd", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = array();\nfor($x = 0; $x < 8; $x++)\n{\n    $b = str_split(trim(fgets(STDIN)));\n    $a[$x] = $b;\n}\n$c = array();\nfor($x = 0; $x < 8; $x++)\n{\n    for($y = 0; $y < 8; $y++)\n    {\n        $c[$x][$y] = $a[7 - $y][7 - $x];\n    }\n    $d = implode($c[$x]);\n    $e = strrev($d);\n    $c[$x] = str_split($e);\n}\n$f = array();\nfor($x = 0; $x < 8; $x++)\n{\n    for($y = 0; $y < 8; $y++)\n    {\n        if($c[$x][$y] == \"W\")\n        {\n            $f[$x] = $y;\n            break;\n        }\n        elseif($c[$x][$y] == \"B\")\n        {\n            break;\n        }\n    }\n}\n$g = array();\nfor($x = 7; $x >= 0; $x--)\n{\n    for($y = 7; $y >= 0; $y--)\n    {\n        if($c[$x][$y] == \"B\")\n        {\n            $g[$x] = 7 - $y;\n            break;\n        }\n        elseif($c[$x][$y] == \"W\")\n        {\n            break;\n        }\n    }\n}\n$h = min($f);\n$i = min($g);\nif($h <= $i)\n{\n    print \"A\";\n}\nelse\n{\n    print \"B\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e7d3e86295da7a0b89b341ce5c4c76b1", "src_uid": "0ddc839e17dee20e1a954c1289de7fbd", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = file('php://stdin');\n//$input = file(\"input.in\");\n$fdf = explode(\" \",$input[0]);\n$tver = $fdf[1];\n$thor = $fdf[0];\n\n$ver = $input[2];\n$hor = $input[1];\n\n//check1\n$nnbv1 = $ver[0];\n$nnbv2 = $hor[$thor-1];\nif($nnbv1 == \"v\" && $nnbv2 == \"<\"){\n$checka = \"1\";\n}\n\n//check2\n$nnbv1 = $ver[0];\n$nnbv2 = $hor[0];\nif($nnbv1 == \"^\" && $nnbv2 == \"<\"){\n$checka = \"1\";\n}\n\n\n//check3\n$nnbv1 = $ver[$tver-1];\n$nnbv2 = $hor[0];\nif($nnbv1 == \"^\" && $nnbv2 == \">\"){\n$checka = \"1\";\n}\n\n\n//check4\n$nnbv1 = $ver[$tver-1];\n$nnbv2 = $hor[$thor-1];\nif($nnbv1 == \"v\" && $nnbv2 == \">\"){\n$checka = \"1\";\n}\nif($checka == \"1\"){\necho \"NO\";\n}else{\necho \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["dfs and similar", "implementation", "graphs", "brute force"], "code_uid": "53b22ddc0ad95db1215e24dd97777866", "src_uid": "eab5c84c9658eb32f5614cd2497541cf", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n$lines = explode(\"\\n\", file_get_contents(\"php://stdin\"));\n\n$lines[0] = explode(\" \", $lines[0]);\n\n\n\n$horiz = str_split(trim($lines[1]));\n$vert = str_split(trim($lines[2]));\n\n\n\n\n\nif($horiz[0]==\"<\" && $vert[0]==\"^\") {\n    echo \"NO\";exit();\n}\nif($horiz[count($horiz)-1]==\">\" && $vert[count($vert)-1]==\"v\") {\n    echo \"NO\";exit();\n}\n\nif($horiz[0]==\">\" && $vert[count($vert)-1]==\"^\") {\n    echo \"NO\";exit();\n}\nif($horiz[count($horiz)-1]==\"<\" && $vert[0]==\"v\") {\n    echo \"NO\";exit();\n}\n\necho \"YES\";\n?>", "lang_cluster": "PHP", "tags": ["dfs and similar", "implementation", "graphs", "brute force"], "code_uid": "9010a8bc7c887320577b567eb9b9cdd5", "src_uid": "eab5c84c9658eb32f5614cd2497541cf", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = fopen(\"php://stdin\", \"r\");\n\nlist($n, $m) = explode(\" \",trim(fgets($in)));\n\n$hor = str_split(trim(fgets($in)));\n\n$ver = str_split(trim(fgets($in)));\n\nif( ($ver[0]==\"^\" && $hor[0]==\"<\") || ($ver[$m-1]==\"^\" && $hor[0]==\">\") || ($ver[0]==\"v\" && $hor[$n-1]==\"<\") || ($ver[$m-1]==\"v\" && $hor[$n-1]==\">\") ){\n\techo \"NO\\n\";\n}\nelse{\n\techo \"YES\\n\";\n}\n\n", "lang_cluster": "PHP", "tags": ["dfs and similar", "implementation", "graphs", "brute force"], "code_uid": "22833a636eb901f289ae04f8840e4f44", "src_uid": "eab5c84c9658eb32f5614cd2497541cf", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$file = fopen('input.in', 'r');\n$file = STDIN;\nlist($m, $n) = explode(\" \", trim(fgets($file)));\n$x = trim(fgets($file));\n$y = trim(fgets($file));\n\n$t = $x[0] . $y[0] . $x[$m - 1] . $y[$n - 1];\nif ($t == '<v>^' || $t == '>^<v') {\n    echo \"YES\";\n}else{\n    echo \"NO\";\n}", "lang_cluster": "PHP", "tags": ["dfs and similar", "implementation", "graphs", "brute force"], "code_uid": "fa07a8a853015c3145d32806407a4e24", "src_uid": "eab5c84c9658eb32f5614cd2497541cf", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = array();\nfor($x = 1; $x <= 2; $x++)\n{\n     $d = str_split(trim(fgets(STDIN)));\n     if($x == 1)\n     {\n          array_push($c, $d[0]);\n          array_push($c, $d[$a - 1]);\n     }\n     if($x == 2)\n     {\n          array_push($c, $d[0]);\n          array_push($c, $d[$b - 1]);\n     }\n}\n$e = array_unique($c);\nif(count($e) == 4)\n{\n     if((($e[0] == \"<\") && ($e[1] == \">\") && ($e[2] == \"v\") && ($e[3] == \"^\")) || (($e[0] == \">\") && ($e[1] == \"<\") && ($e[2] == \"^\") && ($e[3] == \"v\")))\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["dfs and similar", "implementation", "graphs", "brute force"], "code_uid": "754a595454875bb62635092445108d34", "src_uid": "eab5c84c9658eb32f5614cd2497541cf", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split(trim(fgets(STDIN)));\n$c = array(\"a\", \"b\", \"c\", \"d\", \"e\", \"f\", \"g\", \"h\", \"i\", \"j\", \"k\", \"l\", \"m\", \"n\", \"o\", \"p\", \"q\", \"r\", \"s\", \"t\", \"u\", \"v\", \"w\", \"x\", \"y\", \"z\");\n$d = array_slice($c, 0, $a);\n$e = array();\nfor($x = 0; $x < count($d); $x++)\n{\n    for($y = 0; $y < count($b); $y++)\n    {\n        if($d[$x] == $b[$y])\n        {\n            array_push($e, $d[$x]);\n        }\n    }\n}\n$f = array_unique($e);\nsort($f);\n$g = array_diff($d, $f);\nsort($g);\n$h = 0;\n$i = count($b) - 1;\n$j = 0;\nfor($x = 0; $x < count($b); $x++)\n{\n    if(($b[$h] == \"?\") && ($b[$i] == \"?\"))\n    {\n        $j++;\n    }\n    $h++;\n    $i--;\n}\n$k = array_merge($f, $g);\n$l = array_diff($d, $k);\nif(count($l) != 0)\n{\n    print \"IMPOSSIBLE\";\n}\nelse\n{\n    $m = ceil($j / 2);\n    if($m < count($g))\n    {\n        print \"IMPOSSIBLE\";\n    }\n    else\n    {\n        $n = 0;\n        $o = count($b) - 1;\n        $p = $m - count($g);\n        $r = 0;\n        $s = 0;\n        for($x = 0; $x < count($b); $x++)\n        {\n            if(($b[$n] == $b[$o]) && ($b[$n] == \"?\"))\n            {\n                if($p != 0)\n                {\n                    $b[$n] = \"a\";\n                    $b[$o] = \"a\";\n                    $p--;\n                }\n                else\n                {\n                    $b[$n] = $g[$r];\n                    $b[$o] = $g[$r];\n                    $r++;\n                }\n            }\n            elseif(($b[$n] != $b[$o]) && ($b[$n] == \"?\"))\n            {\n                $b[$n] = $b[$o];\n            }\n            elseif(($b[$n] != $b[$o]) && ($b[$o] == \"?\"))\n            {\n                $b[$o] = $b[$n];\n            }\n            elseif(($b[$n] != $b[$o]) && ($b[$o] != \"?\") && ($b[$n] != \"?\"))\n            {\n                $s = 1;\n                break;\n            }\n            $n++;\n            $o--;\n        }\n        if($s == 1)\n        {\n            print \"IMPOSSIBLE\";\n        }\n        else\n        {\n            print implode(\"\", $b);\n        }\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["expression parsing"], "code_uid": "d8e8e8e9639bfa39692dff031e9853a6", "src_uid": "9d1dd9d722e5fe46823224334b3b208a", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN));\n    print (2 * floor($n/3) + ($n % 3 == 0 ? 0 : 1));\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "bd13b19ec1ed3bc8166ce115c7137b88", "src_uid": "a993069e35b35ae158d35d6fe166aaef", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\nif ($n == 1 or $n == 2) {\n    print \"1\";\n} else {\n    $mod = $n % 3;\n    if ($mod) {\n        $res = floor($n / 3) * 2 + 1;\n    } else {\n        $res = ($n / 3) * 2;\n    }\n    print $res;\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "e59e082badfd7cceac05cacb30ccd13a", "src_uid": "a993069e35b35ae158d35d6fe166aaef", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%d\\n\", $number); // reads number from STDIN\n\n$count = (($number - $number % 3) / 3) * 2 + (($number % 3) ? 1 : 0);\n\necho \"$count\\n\";", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "f168cc697807755fb4feaa65fcd8d73d", "src_uid": "a993069e35b35ae158d35d6fe166aaef", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a >= 3)\n{\n     $b = $a % 3;\n     $c = floor($a / 3);\n     if($b == 0)\n     {\n          print ($c * 2);\n     }\n     else\n     {\n          print ($c * 2 + 1);\n     }\n}\nelse\n{\n     print \"1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "eb87d3b8b02e2bd3788eb0bd6b0fb89d", "src_uid": "a993069e35b35ae158d35d6fe166aaef", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a == 1)\n{\n    print \"-1\";\n}\nelseif($a == 2)\n{\n    list($b, $c) = explode(\" \", trim(fgets(STDIN)));\n    list($d, $e) = explode(\" \", trim(fgets(STDIN)));\n    if(($b == $d) || ($c == $e))\n    {\n        print \"-1\";\n    }\n    else\n    {\n        $f = min($b, $d);\n        $g = max($b, $d);\n        $h = min($c, $e);\n        $i = max($c, $e);\n        if(($f < 0) && ($g < 0))\n        {\n            $j = abs($f) - abs($g);\n        }\n        elseif(($f < 0) && ($g >= 0))\n        {\n            $j = abs($f) + $g;\n        }\n        elseif(($f >= 0) && ($g > 0))\n        {\n            $j = $g - $f;\n        }\n        if(($h < 0) && ($i < 0))\n        {\n            $k = abs($h) - abs($i);\n        }\n        elseif(($h < 0) && ($i >= 0))\n        {\n            $k = abs($h) + $i;\n        }\n        elseif(($h >= 0) && ($i > 0))\n        {\n            $k = $i - $h;\n        }\n        print $j * $k;\n    }\n}\nelseif($a > 2)\n{\n    list($b, $c) = explode(\" \", trim(fgets(STDIN)));\n    list($d, $e) = explode(\" \", trim(fgets(STDIN)));\n    list($f, $g) = explode(\" \", trim(fgets(STDIN)));\n    if(($b == $d) && ($c == $g))\n    {\n        $h = min($c, $e);\n        $i = max($c, $e);\n        $j = min($b, $f);\n        $k = max($b, $f);\n        if(($h < 0) && ($i < 0))\n        {\n            $l = abs($h) - abs($i);\n        }\n        elseif(($h < 0) && ($i >= 0))\n        {\n            $l = abs($h) + $i;\n        }\n        elseif(($h >= 0) && ($i > 0))\n        {\n            $l = $i - $h;\n        }\n        if(($j < 0) && ($k < 0))\n        {\n            $m = abs($j) - abs($k);\n        }\n        elseif(($j < 0) && ($k >= 0))\n        {\n            $m = abs($j) + $k;\n        }\n        elseif(($j >= 0) && ($k > 0))\n        {\n            $m = $k - $j;\n        }\n        print $l * $m;\n    }\n    elseif(($b == $d) && ($e == $g))\n    {\n        $h = min($c, $e);\n        $i = max($c, $e);\n        $j = min($d, $f);\n        $k = max($d, $f);\n        if(($h < 0) && ($i < 0))\n        {\n            $l = abs($h) - abs($i);\n        }\n        elseif(($h < 0) && ($i >= 0))\n        {\n            $l = abs($h) + $i;\n        }\n        elseif(($h >= 0) && ($i > 0))\n        {\n            $l = $i - $h;\n        }\n        if(($j < 0) && ($k < 0))\n        {\n            $m = abs($j) - abs($k);\n        }\n        elseif(($j < 0) && ($k >= 0))\n        {\n            $m = abs($j) + $k;\n        }\n        elseif(($j >= 0) && ($k > 0))\n        {\n            $m = $k - $j;\n        }\n        print $l * $m;\n    }\n    elseif(($b == $f) && ($c == $e))\n    {\n        $h = min($c, $g);\n        $i = max($c, $g);\n        $j = min($b, $d);\n        $k = max($b, $d);\n        if(($h < 0) && ($i < 0))\n        {\n            $l = abs($h) - abs($i);\n        }\n        elseif(($h < 0) && ($i >= 0))\n        {\n            $l = abs($h) + $i;\n        }\n        elseif(($h >= 0) && ($i > 0))\n        {\n            $l = $i - $h;\n        }\n        if(($j < 0) && ($k < 0))\n        {\n            $m = abs($j) - abs($k);\n        }\n        elseif(($j < 0) && ($k >= 0))\n        {\n            $m = abs($j) + $k;\n        }\n        elseif(($j >= 0) && ($k > 0))\n        {\n            $m = $k - $j;\n        }\n        print $l * $m;\n    }\n    elseif(($b == $f) && ($g == $e))\n    {\n        $h = min($c, $g);\n        $i = max($c, $g);\n        $j = min($d, $f);\n        $k = max($d, $f);\n        if(($h < 0) && ($i < 0))\n        {\n            $l = abs($h) - abs($i);\n        }\n        elseif(($h < 0) && ($i >= 0))\n        {\n            $l = abs($h) + $i;\n        }\n        elseif(($h >= 0) && ($i > 0))\n        {\n            $l = $i - $h;\n        }\n        if(($j < 0) && ($k < 0))\n        {\n            $m = abs($j) - abs($k);\n        }\n        elseif(($j < 0) && ($k >= 0))\n        {\n            $m = abs($j) + $k;\n        }\n        elseif(($j >= 0) && ($k > 0))\n        {\n            $m = $k - $j;\n        }\n        print $l * $m;\n    }\n    elseif(($d == $f) && ($e == $c))\n    {\n        $h = min($g, $e);\n        $i = max($g, $e);\n        $j = min($b, $d);\n        $k = max($b, $d);\n        if(($h < 0) && ($i < 0))\n        {\n            $l = abs($h) - abs($i);\n        }\n        elseif(($h < 0) && ($i >= 0))\n        {\n            $l = abs($h) + $i;\n        }\n        elseif(($h >= 0) && ($i > 0))\n        {\n            $l = $i - $h;\n        }\n        if(($j < 0) && ($k < 0))\n        {\n            $m = abs($j) - abs($k);\n        }\n        elseif(($j < 0) && ($k >= 0))\n        {\n            $m = abs($j) + $k;\n        }\n        elseif(($j >= 0) && ($k > 0))\n        {\n            $m = $k - $j;\n        }\n        print $l * $m;\n    }\n    elseif(($d == $f) && ($g == $c))\n    {\n        $h = min($e, $g);\n        $i = max($e, $g);\n        $j = min($b, $f);\n        $k = max($b, $f);\n        if(($h < 0) && ($i < 0))\n        {\n            $l = abs($h) - abs($i);\n        }\n        elseif(($h < 0) && ($i >= 0))\n        {\n            $l = abs($h) + $i;\n        }\n        elseif(($h >= 0) && ($i > 0))\n        {\n            $l = $i - $h;\n        }\n        if(($j < 0) && ($k < 0))\n        {\n            $m = abs($j) - abs($k);\n        }\n        elseif(($j < 0) && ($k >= 0))\n        {\n            $m = abs($j) + $k;\n        }\n        elseif(($j >= 0) && ($k > 0))\n        {\n            $m = $k - $j;\n        }\n        print $l * $m;\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["geometry", "implementation"], "code_uid": "85f8254774a80b5c4a5b33432122dd96", "src_uid": "ba49b6c001bb472635f14ec62233210e", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile(fscanf(STDIN,\"%d\", $n)){\n    $x1 = -9999;\n    $y1 = -9999;\n    $x2 = 9999;\n    $y2 = 9999;\n    for($i=0; $i < $n; $i++){\n        fscanf(STDIN,\"%d%d\", $x,$y);\n        $x1 = max($x,$x1);\n        $y1 = max($y,$y1);\n        $x2 = min($x,$x2);\n        $y2 = min($y,$y2);\n    }\n    if(($x1 == $x2) || ($y1 == $y2)) {\n        echo \"-1\", \"\\n\";\n    }\n    else{\n        $ans = ($x1-$x2)*($y1-$y2);\n        echo $ans;\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["geometry", "implementation"], "code_uid": "5d98758906362865897b3ad85ebba611", "src_uid": "ba49b6c001bb472635f14ec62233210e", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $n, $m);\nif($n >= $m){\n    $result = $n - $m;\n}else{\n    $result = 0;\n    while($m != $n){\n        if($m % 2 == 1 || $m < $n){\n            $m++;\n        }else{\n            $m = $m/2;\n        }\n        $result++;\n    }\n}\necho $result;", "lang_cluster": "PHP", "tags": ["dfs and similar", "shortest paths", "math", "graphs", "greedy", "implementation"], "code_uid": "0f0d17652ce6e9c88a089d72d1be15a6", "src_uid": "861f8edd2813d6d3a5ff7193a804486f", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nini_set(\"xdebug.max_nesting_level\", 100000);\n$a = explode(\" \", fgets(STDIN));\n$from = trim($a[0]);\n$to = trim($a[1]);\n$s = array();\nfunction calc($p, $v) {\n\tif ($p < 0 || $p > 10000) return;\n\tglobal $s;\n\tif (isset($s[$p]) && $s[$p] <= $v) return;\n\t$s[$p] = $v;\n\tcalc($p - 1, $v + 1);\n\tcalc($p * 2, $v + 1);\n}\ncalc($from, 0);\necho $s[$to];\n", "lang_cluster": "PHP", "tags": ["dfs and similar", "shortest paths", "math", "graphs", "greedy", "implementation"], "code_uid": "f52ef494b2cb46aca940549c451bb3b4", "src_uid": "861f8edd2813d6d3a5ff7193a804486f", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $n, $m);\nif($n >= $m){\n    $result = $n - $m;\n}else{\n    $result = 0;\n    while($m != $n){\n        if($m % 2 == 1 || $m < $n){\n            $m++;\n        }else{\n            $m = $m/2;\n        }\n        $result++;\n    }\n}\necho $result;", "lang_cluster": "PHP", "tags": ["dfs and similar", "shortest paths", "math", "graphs", "greedy", "implementation"], "code_uid": "29038f00ed2d50bb2c4adc219dd5403e", "src_uid": "861f8edd2813d6d3a5ff7193a804486f", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nif($a < $b)\n{\n    $c = $b % 2;\n    if($c == 0)\n    {\n        $f = 0;\n        for($x = 1; $x <= 100; $x++)\n        {\n            $b /= 2;\n            $d = $b % 2;\n            if($b == $a)\n            {\n                print $f + $x;\n                break;\n            }\n            elseif($b < $a)\n            {\n                $e = $a - $b;\n                print $e + $f + $x;\n                break;\n            }\n            elseif($b > $a)\n            {\n                if(($d != 0) && (ceil($d) == $d))\n                {\n                    $b++;\n                    $f++;\n                }\n                elseif(($d != 0) && (ceil($d) != $d))\n                {\n                    $b = ceil($b);\n                    $f++;\n                }\n            }\n        }\n    }\n    else\n    {\n        $b++;\n        $f = 1;\n        for($x = 1; $x <= 100; $x++)\n        {\n            $b /= 2;\n            $d = $b % 2;\n            if($b == $a)\n            {\n                print $f + $x;\n                break;\n            }\n            elseif($b < $a)\n            {\n                $e = $a - $b;\n                print $e + $f + $x;\n                break;\n            }\n            elseif($b > $a)\n            {\n                if(($d != 0) && (ceil($d) == $d))\n                {\n                    $b++;\n                    $f++;\n                }\n                elseif(($d != 0) && (ceil($d) == $d))\n                {\n                    $b = ceil($b);\n                    $f++;\n                }\n            }\n        }\n    }\n}\nelseif($a == $b)\n{\n    print \"0\";\n}\nelseif($a > $b)\n{\n    print $a - $b;\n}\n?>", "lang_cluster": "PHP", "tags": ["dfs and similar", "shortest paths", "math", "graphs", "greedy", "implementation"], "code_uid": "5d7df7ac90bbec89116ccfb3b9c3183b", "src_uid": "861f8edd2813d6d3a5ff7193a804486f", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$p = 0;\nwhile($a != 0){\nif($a%2 == 0){\n$a = $a/2;\n}\nelse{\n$p++;\n$a = $a-1/2;\n}\n}\necho $p;\n?>", "lang_cluster": "PHP", "tags": ["bitmasks"], "code_uid": "c1339a233e93bc02b168f6c2c73832f4", "src_uid": "03e4482d53a059134676f431be4c16d2", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$p = 0;\nwhile ($a != 0) {\n    if ($a % 2 == 0) {\n        $a = $a/2;\n    } else {\n        $p++;\n        $a = $a - 1 / 2;\n    }\n}\necho $p;", "lang_cluster": "PHP", "tags": ["bitmasks"], "code_uid": "74d60f317a37c34df5b1069082bc3166", "src_uid": "03e4482d53a059134676f431be4c16d2", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$p = 0;\nwhile ($a != 0) {\n    if ($a % 2 == 0) {\n        $a = $a/2;\n    } else {\n        $p++;\n        $a = $a - 1 / 2;\n    }\n}\necho $p;\n", "lang_cluster": "PHP", "tags": ["bitmasks"], "code_uid": "a9a15cac5be997c681fc627e127fa510", "src_uid": "03e4482d53a059134676f431be4c16d2", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$x = trim(fgets(STDIN));\n$b = 0;\nwhile ($x != 0) {\n    if ($x % 2 == 0) {\n        $x = $x/2;\n    }\n    else {\n        $b++;\n        $x = ($x-1)/2;\n    }\n}\necho $b;\n\n?>", "lang_cluster": "PHP", "tags": ["bitmasks"], "code_uid": "480121f9bc1f1f5643aba73970ed6d66", "src_uid": "03e4482d53a059134676f431be4c16d2", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$p = 0;\nwhile ($a != 0) {\n    if ($a % 2 == 0) {\n        $a = $a/2;\n    } else {\n        $p++;\n        $a =( $a - 1) / 2;\n    }\n}\necho $p;", "lang_cluster": "PHP", "tags": ["bitmasks"], "code_uid": "81cd7cc4bba01205a29d72f5a5ab2e5b", "src_uid": "03e4482d53a059134676f431be4c16d2", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$p = 0;\nwhile ($a != 0) {\n    if ($a % 2 == 0) {\n        $a = $a/2;\n    } else {\n        $p++;\n        $a = ($a - 1) / 2;\n    }\n}\necho $p;", "lang_cluster": "PHP", "tags": ["bitmasks"], "code_uid": "4a547377746326aa9d08924d3acb5b4e", "src_uid": "03e4482d53a059134676f431be4c16d2", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$file = fopen('input.in', 'r');\n$file = STDIN;\n$n = trim(fgets($file));\n$result = 0;\nwhile ($n >= 2) {\n    $r = $n % 2;\n    if ($r == 1) {\n        $result++;\n    }\n    $n -= $r;\n    $n /= 2;\n}\n$result++;\necho $result;", "lang_cluster": "PHP", "tags": ["bitmasks"], "code_uid": "c05b5a1c6707ae7d60c246752ee08e91", "src_uid": "03e4482d53a059134676f431be4c16d2", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\t$a = array();\n\n\t$n = (int) fgets(STDIN);\n\t$m = (int) fgets(STDIN);\n\t$mxRes = 0;\n\t$i = 0;\n\n\tfor ($i = 0; $i < $n; $i++) {\n\t\t$a[$i] = (int) fgets(STDIN);\n\t\tif ($a[$i] > $mxRes) {\n\t\t\t$mxRes = $a[$i];\n\t\t}\n\t}\n\t$res2 = $mxRes + $m;\n\tsort($a);\n\tfor ($i = 0; $i < $n; $i++) { \n\t\tif ($a[$i] != $mxRes && $m > 0) {\n\n\t\t\tif ($m >= $mxRes - $a[$i]) {\n\t\t\t\t\n\t\t\t\t$m -= ($mxRes - $a[$i]);\n\t\t\t\t$a[$i] = $mxRes;\n\t\t\t} else {\n\t\t\t\t$a[$i] += $m;\n\t\t\t\t$m = 0;\n\t\t\t}\n\t\t\t\n\t\t} else {\n\t\t\tbreak;\n\t\t}\n\t}\n\n\tif ($m > 0) {\n\t\t$res1 = $mxRes + (int)($m / $n) + ($m % $n != 0);\n\t} else {\n\t\t$res1 = $mxRes;\n\t}\n\tprint( $res1.\" \".$res2);\n\n\n ?>", "lang_cluster": "PHP", "tags": ["implementation", "binary search"], "code_uid": "facf4cd69b4d38c577347f4508b9facb", "src_uid": "78f696bd954c9f0f9bb502e515d85a8d", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array();\nfor($x = 0; $x < $a; $x++)\n{\n     $d = trim(fgets(STDIN));\n     $c[$x] = $d;\n}\nsort($c);\n$e = $c[$a - 1] + $b;\n$c[count($c)] = 1000000;\n$f = 0;\nfor($x = 1; $x <= $b; $x++)\n{\n     if($c[$f] < $c[$f + 1])\n     {\n          $c[$f]++;\n          $f = 0;\n     }\n     elseif($c[$f] == $c[$f + 1])\n     {\n          $c[$f]++;\n          $f++;\n     }\n}\nunset($c[$a]);\nprint max($c) . \" \" . $e;\n?>", "lang_cluster": "PHP", "tags": ["implementation", "binary search"], "code_uid": "3359a8b3bd228b21d8bbdf3d80a523ce", "src_uid": "78f696bd954c9f0f9bb502e515d85a8d", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array();\nfor($x = 0; $x < $a; $x++)\n{\n     $d = trim(fgets(STDIN));\n     $c[$x] = $d;\n}\nsort($c);\n$e = $c[$a - 1] + $b;\n$c[count($c)] = 1000000;\n$f = 0;\nfor($x = 1; $x <= $b; $x++)\n{\n     if($c[$f] < $c[$f + 1])\n     {\n          $c[$f]++;\n          $f = 0;\n     }\n     elseif($c[$f] == $c[$f + 1])\n     {\n          $c[$f]++;\n          $f++;\n     }\n}\nunset($c[$a]);\nprint max($c) . \" \" . $e;\n?>", "lang_cluster": "PHP", "tags": ["implementation", "binary search"], "code_uid": "7d0cb429593d19d8f3aa45eb5dc77ce2", "src_uid": "78f696bd954c9f0f9bb502e515d85a8d", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%s\",$str);\n$cnt=1;\n$max=1;\nfor ($i=0; $i <strlen($str) ; $i++)\n { \n\tif($str[$i]=='A'||$str[$i]=='E'||$str[$i]=='I'||$str[$i]=='O'||$str[$i]=='U'||$str[$i]=='Y')\n\t{\n\t\t$cnt=1;\n\t}\n\telse\n\t\t$cnt++;\n\tif($cnt>$max)\n\t   $max=$cnt;\n\n\n\n }\n echo \"$max\";", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "3d1c2b0ce37d761860f4a01e1ecd8614", "src_uid": "1fc7e939cdeb015fe31f3cf1c0982fee", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(\"A\", \"E\", \"I\", \"O\", \"U\", \"Y\");\n$c = array();\narray_push($c, 0);\nfor($x = 0; $x < strlen($a); $x++)\n{\n     for($y = 0; $y < 6; $y++)\n     {\n          if($a[$x] == $b[$y])\n          {\n               array_push($c, $x + 1);\n               break;\n          }\n     }\n}\narray_push($c, strlen($a) + 1);\n$d = 0;\nfor($x = 0; $x < count($c) - 1; $x++)\n{\n     $e = $c[$x + 1] - $c[$x];\n     $d = max($d, $e);\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "eb477fb34362b4482477e85e616b4caf", "src_uid": "1fc7e939cdeb015fe31f3cf1c0982fee", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\n$l = strlen($s);\n$a = str_split($s);\n$previ = 0;\n$b = 0;\nfor ($i = 0; $i < $l; $i++) {\n    if (($a[$i] == \"A\") or ($a[$i] == \"E\") or ($a[$i] == \"I\") or ($a[$i] == \"O\") or ($a[$i] == \"U\") or ($a[$i] == \"Y\")) {\n        if (!isset($a2)) {\n            $k = 1;\n        }\n        $a2[] = $i + $k - $previ;\n        $previ = $i;\n        $end = $i;\n        $k = 0;\n        $b = 1;\n    }\n}\nif (!$b) {\n    print $l + 1;\n} else {\n    $a2[] = $l - $end;\n    $j = max($a2);\n    print $j;\n}\n?>\n\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "93caad1728d8af9891c2bd1d389c0561", "src_uid": "1fc7e939cdeb015fe31f3cf1c0982fee", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$str = trim(fgets(STDIN));\n$max= 0;\n$current = 1;\n\nfor($i=0;$i<strlen($str);$i++){\n    if($str[$i]==='A'||$str[$i]==='E'||$str[$i]==='O'||$str[$i]==='I'||$str[$i]==='U'||$str[$i]==='Y'){\n        if($current > $max){\n            $max= $current;\n        }\n        $current=1;\n    }\n    else{\n        $current++;\n    }\n}\n\n\n\nif($current > $max){\n    $max = $current;\n}\necho $max;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "66789b50b5e140daae87bd25fe2bf41c", "src_uid": "1fc7e939cdeb015fe31f3cf1c0982fee", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\nfscanf(STDIN, \"%s\", $s);\n$i = 0;\n$j = 1;\ndo{\n\techo $s[$i];\n\t$i += $j;\n\t$j++;\n}\nwhile ($i != $n);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0e8bea39504d55e4805f9c6d931cd2cb", "src_uid": "08e8c0c37b223f6aae01d5609facdeaf", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = trim(fgets(STDIN));\n$t = trim(fgets(STDIN));\n\n$s = [];\n$i = 0;\n$j = 1;\n\nwhile($i < $n) {\n    $s[] = $t[$i];\n    $i += $j;\n    $j++;\n}\n\necho implode($s);\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a0a791c9177ef2f61c2e05e88cf47389", "src_uid": "08e8c0c37b223f6aae01d5609facdeaf", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$length=(int)fgets(STDIN) + 1;\n$strin=fgets(STDIN);\n$strout = '';\n$i = 1;\n\nwhile ($length > 0) {\n    $strout .= substr($strin, 0, 1);\n    $strin = substr($strin, $i, $length - $i);\n    $length -= $i;\n    $i++;\n}\n\necho $strout;\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c4c2a13be3bde6b4955d79c33c7ef828", "src_uid": "08e8c0c37b223f6aae01d5609facdeaf", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=fgets(STDIN);\n$input=str_split(fgets(STDIN));\n$res=null;\n$b=0;\nfor ($i=0;$i<$n; $i+=$b) { \n      $b++;\n      $res.=$input[$i];\n}\necho $res;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "88431a29c4f3212cd175082cb1ad5f82", "src_uid": "08e8c0c37b223f6aae01d5609facdeaf", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$i = trim(fgets(STDIN));\n\tif(preg_match('/.*[hH]{1}.*[eE]{1}.*[lL]{1}.*[lL]{1}.*[oO]{1}.*/', $i) == 1){\n\t\techo \"YES\";\n\t} else {\n\t\techo \"NO\";\n\t}\n?>", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "5ddce32f114c6a0a704d3c1c749bf5d1", "src_uid": "c5d19dc8f2478ee8d9cba8cc2e4cd838", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n   fscanf(STDIN, \"%s\", $str);\n      \n   $hello = \"hello\";\n   $n = 0;\n   \n   for($i = 0; $i < strlen($str); $i++)\n      if($str[$i] == $hello[$n]) $n++;\n   \n   \n   \n   if ($n == 5) echo(\"YES\");\n   else echo(\"NO\");\n?>", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "58a2bdbfff6116870854b9fc08d786ea", "src_uid": "c5d19dc8f2478ee8d9cba8cc2e4cd838", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(-1);\n\nif (preg_match('/h.*e.*l.*l.*o/', file_get_contents('php://stdin')))\n\techo 'YES', PHP_EOL;\nelse\n\techo 'NO', PHP_EOL;\n", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "5925ad2fbd44def97f7e8b9d55a23276", "src_uid": "c5d19dc8f2478ee8d9cba8cc2e4cd838", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str=trim(fgets(STDIN));\nfunction hellow($str){\n    preg_match(\"/h.*?e.*?l.*?l.*?o/\",$str,$m);\n    if(!empty($m)) return \"YES\";\n    return \"NO\";\n}\necho hellow($str);\n?>", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "75ccd79fc0eb2f8dbcf1bdc244d02d04", "src_uid": "c5d19dc8f2478ee8d9cba8cc2e4cd838", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php echo preg_match('/h.*e.*l.*l.*o/si', fgets(STDIN)) ? 'YES' : 'NO';", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "b4414d4b95dd3121b73e9d31965df1ab", "src_uid": "c5d19dc8f2478ee8d9cba8cc2e4cd838", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\n\nprint preg_match('/h.*e.*l.*l.*o/',$s,$o)?'YES':'NO';\n?>", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "0e3ac99eeffaf4bba96de43b1ca8f6d9", "src_uid": "c5d19dc8f2478ee8d9cba8cc2e4cd838", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $str = trim(fgets(STDIN));\n   \n    $h = strpos($str, 'h');\n    $e = strpos($str, 'e', $h+1);\n    $l = strpos($str, 'l', $e+1);\n    $l2 = strpos($str, 'l', $l+1);\n    $o = strpos($str, 'o', $l2+1);\n    \n    if($h < $e && $e < $l && $l < $l2 && $l2 < $o) echo \"YES\";\n    else echo \"NO\";\n    \n?>", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "fca62666bda64b125fff16530933eb32", "src_uid": "c5d19dc8f2478ee8d9cba8cc2e4cd838", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//First Get The Input.\n$input = file_get_contents(\"php://stdin\");\n\nfunction func ($input) {\n    \n    //\"hello\" Word.\n    $word = \"hello\";\n    \n    //Current Index.\n    $current_index = 0;\n    \n    //Loop Inside The Given String.\n    for($i = 0;$i < strlen($input);$i++) {\n        \n        if($word[$current_index] == $input[$i]) {\n            \n            $current_index++;\n            \n        }\n        \n    }\n    \n    if($current_index >= strlen($word)) {\n        \n        return \"YES\";\n        \n    }else {\n        \n        return \"NO\";\n        \n    }\n\n}\n\necho func($input);\n\n?>", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "daa9ea9d15177b10f220b9dc0067be69", "src_uid": "c5d19dc8f2478ee8d9cba8cc2e4cd838", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $input = trim(fgets(STDIN));\n    //$arr = explode(' ', $input);\n\n    if (strlen($input) < 5) {\n        echo 'NO';exit;\n    }\n\n    $a = ['h','e','l','l','o'];\n    $b = str_split($input);\n\n    foreach ($b as $v) {\n        if ($v == current($a)) {\n            array_shift($a);\n            if (count($a) === 0) {\n                echo 'YES';exit;\n            }\n        }\n    }\n\n    echo 'NO';exit;", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "994fae7007959a69cbf39a3472790214", "src_uid": "c5d19dc8f2478ee8d9cba8cc2e4cd838", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tfscanf(STDIN, \"%s\",$s);\n\techo preg_match(\"/.*?h.*?e.*?l.*?l.*?o.*?/\",$s)?\"YES\":\"NO\";\n?>", "lang_cluster": "PHP", "tags": ["greedy", "strings"], "code_uid": "988e16075f178b07563d819ee5b6e289", "src_uid": "c5d19dc8f2478ee8d9cba8cc2e4cd838", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$bases1 = explode(\" \",trim(fgets(STDIN)));\n$digits1 = explode(\" \",trim(fgets(STDIN)));\n$bases2 = explode(\" \",trim(fgets(STDIN)));\n$digits2 = explode(\" \",trim(fgets(STDIN)));\n\n$val1 = 0;\n$c1 = count($digits1);\n$base1 = intval($bases1[1]);\nfor($i=0;$i<$c1; $i++){\n    $val1 += intval($digits1[$c1-$i-1]) * pow($base1,$i);\n}\n\n$val2 = 0;\n$c2 = count($digits2);\n$base2 = intval($bases2[1]);\nfor($i=0;$i<$c2; $i++){\n    $val2 += intval($digits2[$c2-$i-1]) * pow($base2,$i);\n}\n\n$res = \"\";\nif($val1 == $val2){\n    $res =  \"=\";\n}else if($val1 > $val2){\n    $res =  \">\";\n}else{\n    $res = \"<\";\n}\n\nfwrite(STDOUT, $res);\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "64c82fb01465b66f3ca6aed14c2c1e64", "src_uid": "d6ab5f75a7bee28f0af2bf168a0b2e67", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction f() {\n    list($n, $base) = explode(' ', fgets(STDIN));\n    \n    $number = 0;\n    $pow = 1;\n    foreach (array_reverse(explode(' ', fgets(STDIN))) as $in) {\n        $number += $pow*$in;\n        $pow *= $base;\n    }\n    return $number;    \n}\n\n$number1 = f();\n$number2 = f();\n\nif ($number1 == $number2) {\n    $sign = '=';\n} else if ($number1 > $number2) {\n    $sign = '>';\n} else {\n    $sign = '<';\n}\necho $sign;\n//echo \"$number1$sign$number2\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "79547d5f07c59dc8723810cf1ce283a9", "src_uid": "d6ab5f75a7bee28f0af2bf168a0b2e67", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = array_reverse(explode(\" \", trim(fgets(STDIN))));\nlist($d, $e) = explode(\" \", trim(fgets(STDIN)));\n$f = array_reverse(explode(\" \", trim(fgets(STDIN))));\n$g = 0;\nfor($x = 0; $x < $a; $x++)\n{\n     $g += $c[$x] * pow($b, $x);\n}\n$h = 0;\nfor($x = 0; $x < $d; $x++)\n{\n     $h += $f[$x] * pow($e, $x);\n}\nif($g < $h)\n{\n     print \"<\";\n}\nelseif($g == $h)\n{\n     print \"=\";\n}\nelseif($g > $h)\n{\n     print \">\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "9b79a2da484be472771fd8722a303c32", "src_uid": "d6ab5f75a7bee28f0af2bf168a0b2e67", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$f1 = STDIN;\nfscanf($f1,\"%d%d\",$l,$r);\n$ans=0;\nfor ($i=1;$i<=$r;$i*=2){\n\tfor ($j=$i;$j<=$r;$j*=3){\n\t\tif ($j >= $l)\n\t\t\t$ans=$ans+1;\n\t}\n}\nprintf(\"%d\",$ans);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "f3f3f623c0eccea922fd0d0dd7fcd57c", "src_uid": "05fac54ed2064b46338bb18f897a4411", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$fl =STDIN;\nfscanf($fl,\"%d%d\",$l, $r);\n$ans=0;\nfor($i=0;$i<=32;++$i)\n{\n    for($j=0;$j<=32;++$j){\n        if((pow(2,$i) * pow(3,$j) <= $r) && (pow(2,$i) * pow(3,$j) >= $l)) $ans++;\n    }\n}\nprintf(\"%d\",$ans);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "b927f8c08c39dbee2dfb86293de5ce33", "src_uid": "05fac54ed2064b46338bb18f897a4411", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n \n    fscanf(STDIN, \"%d %d\", $m,$n);\n    \n //   printf(\"%0.0f\",(ceil($m/$a)*ceil($n/$a)));\n   $a[1] = 1;\n    for ($i=2; $i<=40; $i++)\n    $a[($i)] = $a[ ($i)- 1] * 2;\n    \n    $b[1] = 1;\n    for ($i=2; $i<=30; $i++)\n    $b[($i)] = $b[ ($i)- 1] * 3;\n    $mm = 0;\n    for($i = 1; $i<=40; $i++)\n    for($j = 1; $j<=30; $j++)\n    {\n        $mm = $mm + 1;\n        $c[$mm] = $a[$i] * $b[$j];\n    }\n    $ans = 0;\n    \n   // for($i = 1; $i<=10; $i++)\n   // echo($c[$i]);\n    \n    for($i = 1; $i<=1200; $i++)\n    {\n        if ($c[$i]>=$m && $c[$i]<=$n)\n        $ans = $ans + 1;\n    }\n  //  printf($m);    \n      //  echo($m);\n      //  if ($m == 1) $ans = $ans - 1;\n        echo $ans;\n    \n    \n    \n    \n    //echo $x;\n \n \n    \n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "5349b724adb146f9e8229a091376f348", "src_uid": "05fac54ed2064b46338bb18f897a4411", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php //php 7.0.8\n    $l=0;\n    $r=0;\n    fscanf(STDIN, \"%d %d\", $l, $r);\n$ans=0;\n    $beg=1;\n    for($i=0;$i< 32;$i++)\n    {\n        $cur=$beg;\n        for($j=0;$j< 32;$j++)\n        {\n            if($cur <= $r && $cur >= $l)\n                $ans++;\n            $cur*=3;\n        }\n        $beg*=2;\n    } \n    echo $ans;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "6c2688843e99b177a2a74af35859c4e2", "src_uid": "05fac54ed2064b46338bb18f897a4411", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$mapa = [];\n\nfscanf(STDIN, \"%d %d\\n\", $l, $r); \n\nfor($i = 1; $i <= 2 * pow(10, 9); $i *= 3) {\n\tfor($j = 1; $j * $i <= 2 * pow(10, 9); $j *= 2) {\n\t\t$mapa[$i * $j] = 0;\n\t}\n}\n$answer = 0;\n\nforeach ($mapa as $key => $value) {\n\tif ($l <= $key && $key <= $r) {\n\t\t$answer += 1;\n\t}\n}\necho $answer;", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "b990bff912a4be71d1468dea2f122e01", "src_uid": "05fac54ed2064b46338bb18f897a4411", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction pw3up($d)\n{\n\t$cnt = 0;\n\twhile($d > 0)\n\t{\n\t\t$d = intdiv($d, 3);\n\t\t$cnt++;\n\t}\n\treturn $cnt;\n}\n\nfunction pw3bet($l, $r)\n{\n\treturn (pw3up($r) - pw3up($l - 1));\n}\n\nfunction f($l, $r)\n{\n\tif($r < $l)\n\t\treturn 0;\n\tif($l == $r && $l % 2 == 1)\n\t\treturn pw3bet($l, $r);\n\treturn (pw3bet($l, $r) + f(intdiv(($l + 1),2), intdiv($r,2)));\n}\n\n\n$fl = STDIN;\nlist($l, $r) = explode(\" \", fgets(STDIN));\n$l = (int) $l;\n$r = (int) $r;\n\nprintf(\"%d\\n\", f($l, $r))\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "9fa2ee2e9faec842071d0b6efb652683", "src_uid": "05fac54ed2064b46338bb18f897a4411", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$ans=0;\nfor($c=1; $c <= $b; $c*=2)\n{\n    for ($x = 1; $c * $x <= $b; $x*=3)\n     if($c * $x >= $a)\n     {\n          $ans++;\n     }\n}\nprint $ans;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "c7ae0443b98d8fcac37061216694d394", "src_uid": "05fac54ed2064b46338bb18f897a4411", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%d %d\", $l, $r);\n\n$ans = 0;\nfor ($p2 = 1; $p2 <= $r; $p2 *= 2)\n    for ($p3 = 1; $p3 <= $r; $p3 *= 3)\n        if ($p2 * $p3 >= $l && $p2 * $p3 <= $r)\n            ++$ans;\n\necho $ans . \"\\n\";", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "fc49fa2463585b1f2cecaef101a150ef", "src_uid": "05fac54ed2064b46338bb18f897a4411", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n \nfscanf(STDIN, \"%d%d\\n\", $l, $r);\n \n$ans = 0;\n \nfor ($p2 = 0; $p2 <= 31; $p2++) {\n\tfor ($p3 = 0; $p3 <= 19; $p3++) {\n\t\t$x = pow(2, $p2) * pow(3, $p3);\n\t\tif ($x >= $l && $x <= $r) {\n\t\t\t$ans++;\n\t\t}\n\t}\n}\n \nfprintf(STDOUT, \"%d\\n\", $ans);", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "b79c00215b163c8bb8ec11f25ff90cd0", "src_uid": "05fac54ed2064b46338bb18f897a4411", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 0;\nfor($x = strlen($a) - 1; $x >= 0; $x--)\n{\n     if($a[$x] == 0)\n     {\n          $b++;\n     }\n     else\n     {\n          break;\n     }\n}\nif($b == 0)\n{\n     $c = strrev($a);\n     if($a == $c)\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\nelse\n{\n     $c = strrev($a);\n     for($x = 1; $x <= $b; $x++)\n     {\n          $c .= \"0\";\n     }\n     $d = strrev($c);\n     if($c == $d)\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "de93b323a57470c0ec43fbc19f674675", "src_uid": "d82278932881e3aa997086c909f29051", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$temp = fopen(\"php://stdin\",\"r\");\n$line = fgets($temp);\n$y=strval($line);\n$y=strrev($y);\n$y=intval($y);\nif($line==$y)\n\techo \"YES\";\nelse{\n\tfor($i=10;$i<=1e9;$i*=10){\n\t\tif($line/$y==$i){\n\t\t\techo \"YES\";\n\t\t\treturn 0;\n\t\t}\n\t}\n\techo \"NO\";\n}\n\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "1936f0c4e269fb6374970aabf014f9eb", "src_uid": "d82278932881e3aa997086c909f29051", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=str_replace(\"\n\",\"\",fgets(STDIN));\n$a=str_split($n);\n$c=count($a);\nfor($i=($c-1);$i>=0;$i--)\n{\n   if($a[$i]!=0){ \n    break;\n    }\n}\n$c=$i+1;\n//echo $c;\n//print_r($a);\n$sum=0;\nfor($i=0;$i<(int)($c/2);$i++)\n{\n  //echo $a[$i].\"/\".$a[($c-1-$i)].\"\\n\";\n       if($a[$i]!=$a[($c-1-$i)]) \n           {$sum=1;\n              break; }\n\n}\n//echo $sum;\nif($sum) echo \"NO\";\n  else echo \"YES\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "c1b76d85dc7ef9211859ec5ee0782a72", "src_uid": "d82278932881e3aa997086c909f29051", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\n\nlist($n,$m,$a,$b) = explode(\" \",trim(fgets($f)));\n\nif (($a*$m)<=$b){\n    echo $a*$n;\n    exit;\n}\n\n$sum = floor($n/$m)*$b;\n$x = $n%$m;\n\nif ($x*$a <= $b ){\n    $sum+=($x*$a);\n} else $sum+=$b;\n\n\necho $sum;\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "effbf21561a34b1386bc9cfcfc5d9e18", "src_uid": "faa343ad6028c5a069857a38fa19bb24", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = fopen(\"php://stdin\", \"r\");\n\nlist($n,$m,$a,$b) = explode(\" \",trim(fgets($in)));\n\n$x = floor($n/$m)*$b + ($n%$m)*$a;\n$y = $n*$a;\n$z = ceil($n/$m)*$b;\n\nif($z<=$x && $z<=$y){\n\techo \"$z\\n\";\n}else if($y<=$x && $y<=$z){\n\techo \"$y\\n\";\n}else{\n\techo \"$x\\n\";\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5542b3004025e9a82309fc76d0339459", "src_uid": "faa343ad6028c5a069857a38fa19bb24", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = rtrim(fgets(STDIN));\n$raw   = explode(' ', $input);\n\n$n = (int)$raw[0];\n$m = (int)$raw[1];\n$a = (int)$raw[2];\n$b = (int)$raw[3];\n\nif ($m * $a <= $b) {\n    echo $n * $a . PHP_EOL;\n} else {\n    $count = (int) ($n / $m);\n    $sum = $count * $b;\n    $n -= $m * $count;\n\n    if ($n * $a > $b) {\n        $sum += $b;\n    } else {\n        $sum += $n * $a;\n    }\n\n    echo $sum . PHP_EOL;\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c4c25d0614f55db5acc79f3ec52a2dbe", "src_uid": "faa343ad6028c5a069857a38fa19bb24", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line=explode(\" \" ,trim(fgets(STDIN)));\n$n=(int)$line[0];$m=(int)$line[1];$a=(int)$line[2];$b=(int)$line[3];\nif(($b/$m)>$a){\n    echo $n*$a;\n    exit;\n}\nelse{\n\t$count=0;\n\twhile($n-$m>0){\n        $n-=$m;\n        $count+=$b;\n\t}\n\techo $n*$a<$b? ($n*$a+$count):($b+$count); \n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "9598e61b77898ec41e5f2a925a2b0bf2", "src_uid": "faa343ad6028c5a069857a38fa19bb24", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$counter = 0;\nlist($n,$m,$a,$b) = explode(\" \",trim(fgets(STDIN)));\nprintf(\"%d\",min($n * $a, min(($n % $m) * $a + (int)($n / $m) * $b, ((int)($n / $m) + 1) * $b)));\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a688a332263ae7c4f922e3c6a4758962", "src_uid": "faa343ad6028c5a069857a38fa19bb24", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $stdin = fopen(\"php://stdin\", \"r\");\n    fscanf(STDIN, \"%d%d%d%d\", $n, $m, $a, $b);\n    fclose($stdin);\n    \n    $ab = (int) ($n / $m) * $b;\n    $self = $ab / $b * $m * $a;\n    \n    if(!$ab)\n    {\n        if( $b < $n * $a )\n            $ans = $b;\n        else $ans = $n * $a;\n    }\n    else\n    {\n        if( $ab < $self )\n        {\n            $ans = $ab;\n            if( ($ab / $b) * $m < $n )\n            {\n                $left = ($n - ($ab / $b) * $m);\n                $ans += min( $b, $left * $a );\n            }\n        }\n        else\n        {\n            $ans = $n * $a;\n        }\n    }\n    \n    echo $ans . PHP_EOL;\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6e8a05e8e93eaadff4ec24f2138cb70f", "src_uid": "faa343ad6028c5a069857a38fa19bb24", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist ($n, $m, $a, $b ) = explode(\" \",trim(fgets(STDIN)));\n$variants = array();\n$variants[0] = $a*$n.\"\\n\";\n$variants[1] = intval($n/$m)*$b+($n%$m)*$a;\n$variants[2] = (intval($n/$m)+1)*$b;\nsort($variants);\necho $variants[0];", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5300b09ed67667d5ed15594fc7d4051f", "src_uid": "faa343ad6028c5a069857a38fa19bb24", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%d%d%d%d\", $n, $m, $a, $b);\nif ($n == $m && $b/$m <= $a) {\n    print ($n*$a);\n}\nif ($n < $m) {\n    if ($b < $n*$a) {\n        print($b);\n    } else {\n        print($n*$a);\n    }\n}\nif ($n > $m) {\n    if ($b/$m < $a) {\n        if ($b < ($n%$m)*$a) {\n            $res = intdiv($n, $m)*$b + $b;\n            print($res);\n        } else {\n            $res = intdiv($n, $m)*$b +($n%$m)*$a; \n            print($res);\n        }\n    } else {\n        print($n*$a);\n    }\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a4c6838a316c3e1e1ae2d022fcfec4fe", "src_uid": "faa343ad6028c5a069857a38fa19bb24", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\n$n = (int) fgets(STDIN);\nif($n % 2 == 1){\n    echo \"black\\n\";\n}else{\n    echo \"white\\n1 2\\n\";\n}\n\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "games"], "code_uid": "704e1186d08d0206ceede338e2140500", "src_uid": "52e07d176aa1d370788f94ee2e61df93", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$__fp = fopen('php://stdin', 'r');\n$a = array_map('intval', explode(' ', fgets($__fp)));\nsort($a);\nif (($a[0] + $a[3] == $a[1] + $a[2]) || ($a[0] + $a[1] + $a[2] == $a[3])) {\n    echo 'YES' . PHP_EOL;\n} else {\n    echo 'NO' . PHP_EOL;\n}", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "be1ba491f294641cc97101837de1cb1a", "src_uid": "5a623c49cf7effacfb58bc82f8eaff37", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "    <?php\n    $a = explode(\" \", trim(fgets(STDIN)));\n    rsort($a);\n    if($a[0] == $a[1] + $a[2] + $a[3])\n    {\n         print \"YES\";\n    }\n    elseif($a[0] + $a[1] == $a[2] + $a[3])\n    {\n         print \"YES\";\n    }\n    elseif($a[0] + $a[2] == $a[1] + $a[3])\n    {\n         print \"YES\";\n    }\n    elseif($a[0] + $a[3] == $a[1] + $a[2])\n    {\n         print \"YES\";\n    }\n    else\n    {\n         print \"NO\";\n    }\n    ?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7b9557d9cb136d7d0b26f017c04debef", "src_uid": "5a623c49cf7effacfb58bc82f8eaff37", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\nrsort($a);\nif($a[0] == $a[1] + $a[2] + $a[3])\n{\n     print \"YES\";\n}\nelseif($a[0] + $a[1] == $a[2] + $a[3])\n{\n     print \"YES\";\n}\nelseif($a[0] + $a[2] == $a[1] + $a[3])\n{\n     print \"YES\";\n}\nelseif($a[0] + $a[3] == $a[1] + $a[2])\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "03064e3dba687f4e6108faba4e7ff20e", "src_uid": "5a623c49cf7effacfb58bc82f8eaff37", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line=explode(\" \",trim(fgets(STDIN)));\n$s1=$line[0];\n$s2=$line[1];\n$s3=$line[2];\n$s4=$line[3];\n$s5=$line[0]+$line[1];\n$s6=$line[2]+$line[3];\n$s7=$line[1]+$line[2];\n$s8=$line[0]+$line[3];\n$s9=$line[0]+$line[2];\n$s10=$line[1]+$line[3];\n$s11=$line[1]+$line[2]+$line[3];\n$s12=$line[0]+$line[1]+$line[2];\n$s13=$line[0]+$line[1]+$line[3];\n$s14=$line[0]+$line[2]+$line[3];\n\n\nif($s5==$s6||$s7==$s8||$s9==$s10||$s1==$s11||$s2==$s14||$s3==$s13||$s4==$s12)\n\techo \"YES\";\nelse\n\techo \"NO\";\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "60f8451e5c4a6247e8e0e576ee0e1014", "src_uid": "5a623c49cf7effacfb58bc82f8eaff37", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = array_fill(1, $a, 1);\nwhile(TRUE)\n{\n     if($b == 0)\n     {\n          break;\n     }\n     else\n     {\n          for($x = 1; $x <= $a; $x++)\n          {\n               if($c[$x] == TRUE)\n               {\n                    break;\n               }\n          }\n          for($y = 1; $y <= $a; $y++)\n          {\n               if($c[$x] == TRUE)\n               {\n                    $c[$x] = 0;\n                    $b--;\n                    $x += 2;\n                    if($b == 0)\n                    {\n                         break;\n                    }\n               }\n          }\n     }\n}\narray_push($c, 0);\n$d = 0;\nfor($x = 1; $x <= $a; $x++)\n{\n     if(($c[$x] == 1) && ($c[$x + 1] == 0))\n     {\n          $d++;\n     }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "58e8186093fe80a2c20c2ecddc498f9a", "src_uid": "c05d0a9cabe04d8fb48c76d2ce033648", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n     $n = explode(\" \", trim(fgets(STDIN)));\n     echo min(max(1,$n[1]),$n[0]-$n[1]);\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "dba0af8e56dfaf66daceede20900432e", "src_uid": "c05d0a9cabe04d8fb48c76d2ce033648", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    list($n, $m) = explode(\" \", trim(fgets(STDIN)));\n    if ($n/2 <= $m) {\n        echo $n - $m;\n    } else {\n        if ($m == 0) {\n            echo 1;\n        } else {\n            echo $m;\n        }\n    }\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "40eac14403e6704fd931e6418d7571ad", "src_uid": "c05d0a9cabe04d8fb48c76d2ce033648", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n# 1163A\ndeclare(strict_types=1);\n\n[$n, $m] = fscanf(STDIN, '%u %u');\n\nif ($n === $m) {\n    echo 0;\n} elseif($m < 2) {\n    echo 1;\n} elseif (floor($n / 2) < $m) {\n    echo $n - $m;\n} else {\n    echo $m;\n}\n", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "2b4576ad8cf59570b16b59b57cdebbd6", "src_uid": "c05d0a9cabe04d8fb48c76d2ce033648", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$b = array_unique($b);\nrsort($b);\n$c = 0;\nfor($x = 0; $x < count($b) - 2; $x++)\n{\n     if(($b[$x] - $b[$x + 1] == 1) && ($b[$x + 1] - $b[$x + 2] == 1))\n     {\n          $c = 1;\n          break;\n     }\n}\nif($c == 1)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "sortings", "implementation"], "code_uid": "1d597d32887f82c6fdf94815fa54c0b6", "src_uid": "d6c876a84c7b92141710be5d76536eab", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$ti = explode(\" \", trim(fgets(STDIN)));\nsort($ti);\n$r = false;\n$b = 0;\nfor ($j = 0; $j < $n - 1; $j++) {\n    if ($ti[$j+1] - $ti[$j] == 1) {\n        $b++;\n    } else if ($ti[$j+1] - $ti[$j] == 0) {\n        continue;\n    } else {\n        $b = 0;\n    }\n    if ($b == 2) $r = true;\n}\nif ($r) {\n    print \"YES\";\n} else {\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "sortings", "implementation"], "code_uid": "e9f678bb9c893c6388ee3e5478350626", "src_uid": "d6c876a84c7b92141710be5d76536eab", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($gun1, $gun2, $total)=explode(\" \", trim(fgets(STDIN)));\n$t1=floor($total / $gun1);\n$t2=floor($total / $gun2);\nfor ($num1=0; $num1 <= $t1; $num1++) {\n   for ($num2=0; $num2 <= $t2; $num2++) {\n   if (($num1*$gun1) + ($num2*$gun2) == $total) {\n       die(\"YES\");\n   } \n   }\n }\necho \"NO\";", "lang_cluster": "PHP", "tags": ["brute force", "math", "number theory"], "code_uid": "e273abf188260450692cf1caac6c7bc7", "src_uid": "e66ecb0021a34042885442b336f3d911", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\ndefine('LOCAL_ENV', false);\nif (LOCAL_ENV) {\n    error_reporting(E_ALL & !E_NOTICE);\n    $test = <<<INPUT\n8 1\n10 20 30 40 50 60 70 80\n8 10 58 63 71 72 75 76\nINPUT;\n    $stdin = fopen('php://temp/in', 'rw');\n    fwrite($stdin, $test);\n    rewind($stdin);\n} else {\n    error_reporting(0);\n    $stdin = STDIN;\n}\ndefine('MY_STDIN', $stdin);\n\n$a = trim(fgets(MY_STDIN));\n$b = trim(fgets(MY_STDIN));\n$cc = trim(fgets(MY_STDIN));\n\nlist($n, $c) = explode(' ', $a);\n$p = explode(' ', $b);\n$t = explode(' ', $cc);\n\n$lim = 0; $suml = 0;\n$rad = 0; $sumr = 0;\nfor ($i = 0; $i < $n; $i++) {\n    $lim += max(0, $p[$i] - ($t[$i] + $suml) * $c);\n    $suml += $t[$i];\n    $rad += max(0, $p[$n-$i-1] - ($t[$n-$i-1] + $sumr) * $c);\n    $sumr += $t[$n-$i-1];\n}\n\nif ($lim > $rad) {\n    echo 'Limak';\n} elseif ($rad > $lim) {\n    echo 'Radewoosh';\n} else {\n    echo 'Tie';\n}\n\nif (LOCAL_ENV) {\n    echo PHP_EOL, $lim, PHP_EOL, $rad;\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "96cbe28c8e57a4845e1936dfe73d3835", "src_uid": "8c704de75ab85f9e2c04a926143c8b4a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\nlist($n, $c) = explode(' ', readline());\n\n$p = explode(' ', readline());\n$t = explode(' ', readline());\n\n$l = 0; $r = 0;\n\nfor($i=0, $j=0; $i<$n; $i++)\n{\n\t$j += $t[$i];\n\t$l += max(0, $p[$i]-($c*$j));\n}\nfor($i=$n-1, $j=0; $i>=0; $i--)\n{\n\t$j += $t[$i];\n\t$r += max(0, $p[$i]-($c*$j));\n}\n\necho (($l>$r)?\"Limak\":(($l<$r)?\"Radewoosh\":\"Tie\"));", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1af226fd35ae4702a2da684fd380ed07", "src_uid": "8c704de75ab85f9e2c04a926143c8b4a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = explode(\" \", trim(fgets(STDIN)));\n$e = 0;\nfor($x = 0; $x < $a; $x++)\n{\n     $f += $d[$x];\n     $g = $c[$x] - ($b * $f);\n     $h = max(0, $g);\n     $e += $h;\n}\n$i = 0;\nfor($x = $a - 1; $x >= 0; $x--)\n{\n     $j += $d[$x];\n     $k = $c[$x] - ($b * $j);\n     $l = max(0, $k);\n     $i += $l;\n}\nif($e > $i)\n{\n     print \"Limak\";\n}\nelseif($e == $i)\n{\n     print \"Tie\";\n}\nelseif($e < $i)\n{\n     print \"Radewoosh\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "eeb3e5633c72aa7b06e56dafd0eb166d", "src_uid": "8c704de75ab85f9e2c04a926143c8b4a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist ($n, $m) = explode(\" \", trim(fgets(STDIN)));\n\n$p = range(1, $n);\n\nfunction perms($p) {\n  if (count($p) <= 1) {\n    return array($p);\n  }\n  $res = array();\n  $c = count($p);\n  for ($i = 0; $i < $c; $i++) {\n    $tp = $p;\n    $elt = array_splice($tp, $i, 1);\n    foreach (perms($tp) as $perm) {\n      $res[] = array_merge($elt, $perm);\n    }\n  }\n  return $res;\n}\n\n$allP = perms($p);\n$scores = array();\n\nforeach ($allP as $permI => $perm) {\n  $score = 0;\n  for ($i = 0; $i < $n; $i++) {\n    for ($j = $i; $j < $n; $j++) {\n      $score += min(array_slice($perm, $i, $j - $i + 1));\n    }\n  }\n  $scores[$score][] = $permI;\n}\n\nkrsort($scores);\necho implode(\" \", $allP[$scores[key($scores)][$m - 1]]), \"\\n\";\n", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "068f725793dd34fa45281d16d52b2e0b", "src_uid": "a8da7cbd9ddaec8e0468c6cce884e7a2", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$d = array();\n$e = array();\nfor($x = 1; $x <= $a; $x++)\n{\n    list($b, $c) = explode(\" \", trim(fgets(STDIN)));\n    array_push($d, $b);\n    array_push($e, $c);\n}\n$f = array_sum($d);\n$g = array_sum($e);\n$h = $f % 2;\n$i = $g % 2;\nif(($h == 0) && ($i == 0))\n{\n    print \"0\";\n}\nelse\n{\n    $n = 0;\n    for($x = 0; $x < 100; $x++)\n    {\n        $j = $d[$x];\n        $k = $e[$x];\n        $d[$x] = $k;\n        $e[$x] = $j;\n        $l = array_sum($d);\n        $m = array_sum($e);\n        if(($l % 2 == 0) && ($m % 2 == 0))\n        {\n            $n = 1;\n            break;\n        }\n        else\n        {\n            $d[$x] = $j;\n            $e[$x] = $k;\n        }\n    } \n    if($n == 0)\n    {\n        print \"-1\";\n    }\n    else\n    {\n        print \"1\";\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "9c70409728944fe36b895e3513e3a50a", "src_uid": "f9bc04aed2b84c7dd288749ac264bb43", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php  \n        \n    $a = trim(fgets(STDIN));\n    \n    $sumTop = 0;\n    $sumBot = 0;\n    $dTop = array();\n    $dBot = array();\n    $res = 0;\n    \n    for($i = 1; $i <= $a; $i++)\n    {\n        $temp = explode(\" \", trim(fgets(STDIN)));\n        $dTop[$i] = $temp[0];\n        $dBot[$i] = $temp[1]; \n        $sumTop += $temp[0];\n        $sumBot += $temp[1];\n    }\n    \n    while ($sumTop % 2 != 0 | $sumBot % 2 != 0)\n    {\n        $res++;\n        $up = 1;\n        while ($up <= $a && ($dTop[$up] % 2 == $dBot[$up] % 2)) $up++; \n        \n        if(($up > $a) | ($sumTop % 2 != $sumBot % 2))\n        {\n            $res = -1;\n            break;\n        }\n        else\n        {\n            $sumTop += $dBot[$up] - $dTop[$up];\n            $sumBot += $dTop[$up] - $dBot[$up];\n        }\n        \n    }\n\n    printf($res);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "3f62efffa06d5b7e87f6af81bc54a829", "src_uid": "f9bc04aed2b84c7dd288749ac264bb43", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = intval(line());\n\n$a = array();\n$b = array();\n\n$odds = 0;\n\n$sum_a = 0;\n$sum_b = 0;\n\nfor ($i = 0; $i < $n; $i ++) {\n  list($a[$i], $b[$i]) = explode(' ', line());\n  \n  $a[$i] = intval($a[$i]);\n  $b[$i] = intval($b[$i]);\n  \n  $odds += ($a[$i] & 1) + ($b[$i] & 1);\n\n  $sum_a += $a[$i];\n  $sum_b += $b[$i];\n}\n\nif ($odds&1) {\n  print -1;\n} elseif ($sum_a%2 == 0 && $sum_b%2 == 0) {\n  print 0;\n} else {\n  for ($i = 0; $i < $n; $i ++) {\n    $sum_a += $b[$i] - $a[$i];\n    $sum_b += $a[$i] - $b[$i];\n    if ($sum_a%2 == 0 && $sum_b%2 == 0) {\n      print 1;\n      return;\n    }\n  }\n  print -1;\n}\n\nfunction line() {\n  return trim(fgets(STDIN));\n}\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "c250465fe081398f0e9da5f4c5224cfa", "src_uid": "f9bc04aed2b84c7dd288749ac264bb43", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $arr = array();\n    while(($line = fgets(STDIN)) != false)\n    {\n        $arr[] = $line;\n    }\n\n$N = trim($arr[0]);\n\n$array = str_split(trim($arr[1]));\n\n$more = null;\n$left  = array_slice($array, 0, $N);\n$right = array_slice($array, $N);\n\narray_sort($left);\narray_sort($right);\n\n$verdict = \"YES\";\n\n\nfor ($i=0; $i<$N; $i++) {\n    if ($left[$i] == $right[$i]) {\n        $verdict = \"NO\";\n        break;\n    }\n    \n    if (is_null($more)) {\n        $more = ($left[$i] > $right[$i]) ? true : false;\n    }\n\n    if ($more) {\n        if ($left[$i] < $right[$i]) {\n            $verdict = \"NO\";\n            break;\n        }\n    } else {\n        if ($left[$i] > $right[$i]) {\n            $verdict = \"NO\";\n            break;\n        }\n    }\n        \n}\n\nfunction array_sort(&$array) {\n    $array_count = count($array);\n    for ($i=0; $i<$array_count; $i++) {\n        for ($j=$i; $j<$array_count-1; $j++) {\n            if ($array[$j+1] > $array[$i]) {\n                $tmp = $array[$j+1];\n                $array[$j+1] = $array[$i];\n                $array[$i] = $tmp;\n            }\n        }\n    }\n    return false;\n}\n\n\n\n    fputs(STDOUT, $verdict);\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "b3185c4bc5b8075f85d9aaaf381a200b", "src_uid": "e4419bca9d605dbd63f7884377e28769", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * Date: 06.03.12\n */\n\n\n$stdin = fopen(\"php://stdin\", \"r\");\n\n$n = trim(fgets($stdin));\n$number = trim(fgets($stdin));\n$number = str_split($number);\nfor($i = 0; $i < count($number); $i++) {\n    $number[$i] = (int)$number[$i];\n}\n\n\n$sides = array_chunk($number, $n);\nrsort($sides[0]);\nrsort($sides[1]);\n$leftSideLess = true;\nfor($i = 0; $i < $n; $i++) {\n    if($sides[0][$i] >= $sides[1][$i]){ $leftSideLess = false; break;}\n}\n\n\nsort($sides[0]);\nsort($sides[1]);\n$leftSideBigger = true;\nfor($i = 0; $i < $n; $i++) {\n    if($sides[0][$i] <= $sides[1][$i]){$leftSideBigger = false;  break;}\n}\n\n//var_dump($number);\n//var_dump($sides[0]);\n//var_dump($sides[1]);\n\nif($leftSideBigger || $leftSideLess)echo\"YES\";\nelse echo\"NO\";\n\n\n\n\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "4bbf7cfb28dae91fa605becc62a031f1", "src_uid": "e4419bca9d605dbd63f7884377e28769", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str1 = fgets(STDIN);\n$str2 = fgets(STDIN);\n$string1 = trim($str1);\n$string2 = trim($str2);\n$mas1 = array();\n$mas2 = array();\n\nfor ($i = 0, $j = $string1; $i < $string1, $j < strlen($string2); $i++, $j++)\n{\n    $mas1[] = $string2[$i];\n    $mas2[] = $string2[$j];\n}\nsort($mas1);\nsort($mas2);\n\nfor ($i = 0; $i < count($mas1); $i++)\n{\n    if ($mas1[$i] > $mas2[$i])\n    {\n        $k++;\n    }\n    else if ($mas1[$i] == $mas2[$i])\n    {\n        $result = true;\n    }\n    else\n    {\n        $m++;\n    }\n}\nif ($result)\n{\n    echo \"NO\";\n}\nelse\n{\n    if ($k == $string1 or $m == $string1)\n    {\n        echo \"YES\";\n    }\n    else\n    {\n        echo \"NO\";\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "451426032ad8f7e063e6100ab617fae1", "src_uid": "e4419bca9d605dbd63f7884377e28769", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n\n$fp = fopen('php://stdin','r');\n$count = trim( str_replace( \"\\r\\n\", '', fgets($fp) ) );\n$numb = trim( str_replace( \"\\r\\n\", '', fgets($fp) ) );\n\n$left = array();\n$right = array();\nfor( $i = 0; $i < $count; $i++ ){\n\t$left[] = $numb[$i];\n\t$right[] = $numb[$i + $count];\n}\nrsort($left);\nrsort($right);\n\n$res = array( 0, 0 );\nfor( $i = 0; $i < $count; $i++ ){\n\tif( $left[$i] > $right[$i] )\n\t{\n\t\t$res[0]++;\n\t} else if ( $left[$i] < $right[$i] ) {\n\t\t$res[1]++;\n\t}\n}\n\nif( $res[0] == $count || $res[1] == $count ){\n\techo 'YES';\n} else {\n\techo 'NO';\n}\n\nfclose($fp);\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "b1f3eec11b4312fafa620cb68d21e058", "src_uid": "e4419bca9d605dbd63f7884377e28769", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split(trim(fgets(STDIN)));\n$c = array_slice($b, 0, count($b) / 2);\n$d = array_slice($b, count($b) / 2);\nsort($c);\nsort($d);\n$e = 0;\n$f = 0;\nfor($x = 0; $x < $a; $x++)\n{\n    if($c[$x] < $d[$x])\n    {\n        $e++;\n    }\n    elseif($c[$x] > $d[$x])\n    {\n        $f++;\n    }\n}\nif(($e == $a) || ($f == $a))\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "ced3e00073c1c38df0405b256b1d1141", "src_uid": "e4419bca9d605dbd63f7884377e28769", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = trim(fgets(STDIN));\n$s = trim(fgets(STDIN));\n\n$s = str_split($s,$n);\n$s[0] = str_split($s[0]);\n$s[1] = str_split($s[1]);\nsort($s[0]); sort($s[1]);\n\n$rp = true; $rm = true;\nfor($i=0;$i<$n;$i++){\n if($s[0][$i]>$s[1][$i]) $rm = false;\n if($s[0][$i]<$s[1][$i]) $rp = false;\n if($s[0][$i]==$s[1][$i]) {print 'NO'; exit(0);}\n}\n\nif($rm||$rp) print 'YES'; else print 'NO';\n\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "f3252722b09261a31bfcc841ee23a546", "src_uid": "e4419bca9d605dbd63f7884377e28769", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$file = file('php://stdin');\n$n = intval($file[0]);\npreg_match_all('/\\d{1}/',$file[1],$s);\n$s = array_chunk($s[0], $n);\nsort($s[0]);\nsort($s[1]);\nfor ($i = 0; $i < $n; $i++) \n{\n    if (!isset($chek))\n    {\n    if ($s[0][$i]>$s[1][$i])  $chek = true; else  $chek = false;\n    }\n    if ($chek == true AND $s[0][$i]>$s[1][$i]) $out = true; elseif ($chek == true AND $s[0][$i]<=$s[1][$i]) {$out = false; break;}\n    if ($chek == false AND $s[0][$i]<$s[1][$i]) $out = true; elseif ($chek == false AND $s[0][$i]>=$s[1][$i]) {$out = false; break;}\n}\nif ($out==true) echo \"YES\"; else {echo \"NO\";}\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "75707c9c5889dd7212e3446014ec6fbf", "src_uid": "e4419bca9d605dbd63f7884377e28769", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n\nfunction solve(){\n\t$Scanner = new Scanner(\"php://stdin\");\n\t//$Scanner = new Scanner(\"input.txt\");\n\t\n\t$inp_n = (int)$Scanner->Scan();\n\t$inp_arr = str_split(rtrim($Scanner->Scan()));\n\t\n\tfor ($i = 0; $i < $inp_n; $i++) {\n\t\t$inp_arr1[] = $inp_arr[$i];\n\t}\n\tfor ($i = $inp_n; $i < 2 * $inp_n; $i++) {\n\t\t$inp_arr2[] = $inp_arr[$i];\n\t}\n\t\n\tsort($inp_arr1);\n\tsort($inp_arr2);\n\t$LUCY= false;\n\tif ($inp_n === 1 && $inp_arr1[0] === $inp_arr2[0]) $LUCY = true;\n\tfor ($i = 1; $i < $inp_n; $i++) {\n\t\tif ($inp_arr1[0] < $inp_arr2[0]) {\n\t\t\tif ($inp_arr1[$i] >= $inp_arr2[$i]) {\n\t\t\t\t$LUCY= true;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t} elseif ($inp_arr1[0] > $inp_arr2[0]) {\n\t\t\tif ($inp_arr1[$i] <= $inp_arr2[$i]) {\n\t\t\t\t$LUCY= true;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t} elseif ($inp_arr1[0] === $inp_arr2[0]) {\n\t\t\t$LUCY= true;\n\t\t\tbreak;\n\t\t}\n\t}\n\n\tif ($LUCY) {\n\t\tprint(\"NO\");\n\t} else {\n\t\tprint(\"YES\");\n\t}\n\t$Scanner->close();\n}\n\nob_end_clean();\nsolve();\n\n//error_reporting(0);\n//$Scanner = new Scanner(\"php://stdin\");\nclass Scanner{\n\tprivate $Stream;\n\tprivate $Scanners = array();\n\tprivate $Id = 0;\n\t\n\tpublic function __construct($opend){\n\t\tif((!is_file($opend) && !is_link($opend)) && $opend !== \"php://stdin\"){\n  \t\t\tprint(\"file or link or ''php://stdin' err\");\n  \t\t\texit;\n\t\t}\n\t\t\n\t\t$this->Stream = fopen($opend, 'r');\n\t\t$contents = stream_get_contents($this->Stream);\n\n\t\t//err $c_row = array(\"\\n\", \"\\r\", \"\\r\\n\");\n\t\t$c_row = array(\"\\r\\n\", \"\\r\", \"\\n\");\n\t\t$contents = str_replace($c_row, \" \", $contents);\n\t\t$this->Scanners = explode(\" \", $contents);\n\t}\n\t\n\tfunction Scan(){\n\t\t$x = $this->Id;\n\t\t$sc = $this->Scanners[$x];\n\t\t$this->Id = ++$x;\n\t\treturn $sc;\n\t}\n\n\tfunction close(){\n\t\tfclose($this->Stream);\n\t}\n}\n\n/*\n====begin=====\n\n//input    $inp_ or upper\n//block    $temp_\n//two block$ttemp_\n//as \t   $as_\n//instance $(Upper)\n//ref      $ref\n//class menba $^Upper\n\n====end=======\n\n===== class begin =====\n\n//error_reporting(0);\n//$Scanner = new Scanner(\"php://stdin\");\n//ref \"#109_div2_B_1230942 laurenceHR\"\nclass LineScanner{\n\tprivate $Stream;\n\tprivate $Scanners = array();\n\tprivate $LineIds_Of_ScanIds= array();\n\tprivate $LinesScanners = array();\n\tprivate $LastScanIds_Of_LineIds = array();\n\tprivate $Scan_number = 0;\n\tprivate $Scanline_number = 0;\n\t\n\tpublic function __construct($opend){\n\t\tif((!is_file($opend) && !is_link($opend)) && $opend !== \"php://stdin\"){\n  \t\t\tprint(\"file or link err\");\n  \t\t\texit;\n\t\t}\n\t\t\n\t\t$this->Stream = fopen($opend, 'r');\n\t\t$contents = stream_get_contents($this->Stream);\n\t\t\n\t\t$temp_lines = explode(\"\\n\", $contents);\n\t\t$temp_linescanners = array();\n\t\t$temp_x = 0;\n\t\t$temp_y = 0;\n\t\t//--attention for initting of array--(these is not needed but for easily reading)//\n\t\t$ttemp_scanners = array();\n\t\t//$del = Array(\"\\n\",\"\\r\",\"\\n\\r\");\n\t\tforeach ($temp_lines as $as_line) {\n\t\t\tif (strlen($as_line) === 0) {\n\t\t\t\tprint(\"input err\");\n\t\t\t}\n\t\t\t\n\t\t\t//$as_line = str_replace($del,'',$as_line);\n\t\t\t$temp_linescanners[] = $as_line;\n\t\t\t$ttemp_line_scanners = explode(\" \", $as_line);\n\t\t\t//$ttemp_scanners = array();\n\t\t\tforeach ($ttemp_line_scanners as $as_sc) {\n\t\t\t\t$ttemp_scanners[] = $as_sc;\n\t\t\t\t$this->LineIds_Of_ScanIds[$temp_x] = $temp_y;\n\t\t\t\t$temp_x++;\n\t\t\t}\n\t\t\t$this->LastScanIds_Of_LineIds[$temp_y] = $temp_x - 1;\n\t\t\t$temp_y++;\n\t\t}\n\t\t$this->Scanners = $ttemp_scanners;\n\t\t$this->LinesScanners = $temp_linescanners;\n\t}\n\t\n\tfunction Scan(){\n\t\t$x = $this->Scan_number;\n\t\t$y = $this->Scanline_number;\n\t\tif ($this->LineIds_Of_ScanIds[$x] === false || $this->LastScanIds_Of_LineIds[$y] === false) {\n\t\t\tprint(\"scan err\");\n\t\t}\n\t\t\t\t\n\t\t$sc = $this->Scanners[$x];\n\t\t//--attention for ++$x//\n\t\t//$this->Scan_number = $x++;\n\t\t$this->Scan_number = ++$x;\n\t\t$this->Scanline_number = $this->LineIds_Of_ScanIds[$x];\n\t\treturn $sc;\n\t}\n\t\n\tfunction LineScan(){\n\t\t$x = $this->Scan_number;\n\t\t$y = $this->Scanline_number;\n\t\tif ($this->LineIds_Of_ScanIds[$x] === false || $this->LastScanIds_Of_LineIds[$y] === false) {\n\t\t\tprint(\"linescan err\");\n\t\t}\n\t\t\n\t\t$lsc = $this->LinesScanners[$y];\n\t\t$this->Scan_number = $this->LastScanIds_Of_LineIds[$y] + 1;\n\t\t$this->Scanline_number = $y + 1;\n\t\treturn $lsc;\n\t}\n\t\n\tfunction close(){\n\t\tfclose($this->Stream);\n\t}\n}\n\nclass Token{\n\tprivate $token;\n\tprivate $tok;\n\t\n\tpublic function __construct($str_line, $tok) {\n\t\t$this->tok = $tok;\n\t\t$this->token = strtok($str_line, $this->tok);\n\t}\n\n\tpublic function nextToken() {\n\t\t$thisToken = $this->token;\n\t\t$this->token = strtok($this->tok);\n\t\treturn $thisToken;\n\t} \n\t\t\n\tpublic function nextFloat() {\n\t\treturn (float)$this->nextToken();\n\t}\n\t\n  \tpublic function nextInt() {\n\t\treturn (int)$this->nextToken();\n\t}\n\t\n\tpublic function nextIntArray() {\n\t\t$temp_arr = array();\n\t\t$flag = -1;\n\t\twhile ($flag !== 1) {\n\t\t\t$thisToken = $this->nextToken();\n\t\t\tif ($thisToken !== false) {\n\t\t\t\t$temp_arr[] = $thisToken;\n\t\t\t} else {\n\t\t\t\t$flag = 1;\n\t\t\t}\n\t\t}\n\t\treturn $temp_arr;\n\t}\n\n\tpublic function nnextIntArray($num) {\n\t\t$temp_arr = array();\n\t\tfor ($i = 0; $i < $num; $i++) {\n\t\t\t$temp_arr[] = (int)$this->token;\n\t\t}\n\t\treturn $temp_arr;\n\t}\n}\n===== class end ======\n\n=== function begin ===\n\nfunction get_line() {\n        $stdin = fopen(\"php://stdin\", \"r\"); \n        $line = rtrim($stdin, \"\\n\"); \n        fclose($stdin); \n        return $line; \n}\n\nfunction num_printf($i){\n\tif (is_float($i)) {\n\t\tprintf(\"%.0f\", $i);\n\t}\n\tif (is_int($i)) {\n\t\tprintf(\"%d\", $i);\n\t}\n}\n\nfunction array_printf(array $array) {\n\t\t$message = \"\";\n\t\tforeach ($array as $value) {\n\t\t\t$message .= \"$value\" . \" \";\n\t\t}\n\t\t$message = rtrim($message);\n\t\tprintf('%s', $message);\n}\n\n== function end ======\n*/\n\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "db5cb3c11fe270894d6aa78e668b5614", "src_uid": "e4419bca9d605dbd63f7884377e28769", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN , \"%d\" , $n);\n$s = str_split(trim(fgets(STDIN)));\n$a = array_slice($s,0,$n);\n$b = array_slice($s,$n);\nsort($a); sort($b);\n$o1 = 1; $o2 = 1;\nfor($i=0;$i<$n;$i++) if($a[$i]>=$b[$i]) {$o1=0;break;}\nfor($i=0;$i<$n;$i++) if($a[$i]<=$b[$i]) {$o2=0;break;}\necho ($o1||$o2)?\"YES\":\"NO\"\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "40abee385f463f1f2b0c29dc55a53448", "src_uid": "e4419bca9d605dbd63f7884377e28769", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$a = str_split(trim(fgets(STDIN)));\n$b=array_slice($a,0,$n);\n$c=array_slice($a,$n);\nsort($b);sort($c);\n$is=false;$gr=true;$ls=true;\nfor($i=0;$i<$n;$i++){\n    if($b[$i]>=$c[$i])$ls=false;\n    if($b[$i]<=$c[$i])$gr=false;\n}\nif($gr||$ls)$is=true;\necho $is?'YES':'NO';", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "aad18f51b993323e2b74cc39c6c742b3", "src_uid": "e4419bca9d605dbd63f7884377e28769", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = array();\nfor($x = 0; $x < count($b); $x++)\n{\n     $d = $b[$x];\n     $e = 0;\n     for($y = 0; $y < strlen($d); $y++)\n     {\n          $f = $d[$y];\n          if(ctype_upper($f) == TRUE)\n          {\n               $e++;\n          }\n     }\n     $c[$x] = $e;\n}\nprint max($c);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "08b42fa1a44a4ca719b8b198c2793735", "src_uid": "d3929a9acf1633475ab16f5dfbead13c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "\n <?php\n\tlist($a,$b) = explode(' ',trim(fgets(STDIN)));\n\tif ($a > $b) list($a,$b) = array($b,$a);\n\techo floor(($a + min($b,$a*2))/3);\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "number theory"], "code_uid": "1f3ed7678fca881c3d3cb39cce53c71d", "src_uid": "0718c6afe52cd232a5e942052527f31b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php        \n        list($n, $m) = explode(' ', trim(fgets(STDIN)));\n        $i = 0;\n        while($n > 0 && $m > 0){\n            $n--;\n            $m--;\n            if(($n == 0 && $m > 0) || ($n > 0 && $m == 0)){\n                $i++;\n                break;\n            } elseif($n == 0 && $m == 0){\n                break;\n            }\n            if($n < $m){\n                $m--;\n            } else {\n                $n--;\n            }\n            $i++;\n        }\n        \n        fwrite(STDOUT, $i);\n    ?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "number theory"], "code_uid": "68edc18c4db47543d87e8144207e13a3", "src_uid": "0718c6afe52cd232a5e942052527f31b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tfscanf(STDIN, \"%d%d\", $n, $m);\n\tprintf(\"%d\", min(floor(($n+$m)/3), min($n, $m)));\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "number theory"], "code_uid": "d2b1b0607ddaeb4ea9941c3fbbd5033c", "src_uid": "0718c6afe52cd232a5e942052527f31b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\nfor($x = 1; $x <= 1000000; $x++)\n{\n    if(($a <= 0) || ($b <= 0) || (($a == 1) && ($b == 1)))\n    {\n        break;\n    }\n    elseif($a >= $b)\n    {\n        $c++;\n        $a -= 2;\n        $b -= 1;\n    }\n    elseif($a < $b)\n    {\n        $c++;\n        $a -= 1;\n        $b -= 2;\n    }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "number theory"], "code_uid": "39c6a9f048221464029d78f27104f011", "src_uid": "0718c6afe52cd232a5e942052527f31b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN,\"%d%d\",$n,$m);\necho intval(min($n,$m,($n+$m)/3));", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "number theory"], "code_uid": "a4730b73da43171121867537a71c63bd", "src_uid": "0718c6afe52cd232a5e942052527f31b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tlist($a,$b) = explode(' ',trim(fgets(STDIN)));\n\tif ($a > $b) list($a,$b) = array($b,$a);\n\techo floor(($a + min($b,$a*2))/3);\n?> ", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "number theory"], "code_uid": "8f411c1d9560cc7007d5d74759e25093", "src_uid": "0718c6afe52cd232a5e942052527f31b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($s, $t) = explode(\" \", trim(fgets(STDIN)));\n\nif ($s == $t)\n    print $s;\nelse\n    print 1;\n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "5fda38abf6a001e319ad2233ef116ca2", "src_uid": "9c5b6d8a20414d160069010b2965b896", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$entrada = fopen(\"php://stdin\", \"r\");\n$arr = explode(\" \", trim(fgets($entrada)));\nif($arr[0] == $arr[1])\n print $arr[0];\nelse\n print 1; \n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "25c361273204b694d4954daceb7264d7", "src_uid": "9c5b6d8a20414d160069010b2965b896", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$arr = explode(\" \", trim(fgets(STDIN)));\nif($arr[0] == $arr[1])\n print $arr[0];\nelse\n print 1; \n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "6fc9fee21689ce4a90b7af052c6c4d40", "src_uid": "9c5b6d8a20414d160069010b2965b896", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$arr = explode(\" \", trim(fgets(STDIN)));\nif(strcmp ($arr[0], $arr[1])==0)\n print $arr[0];\nelse\n print 1; \n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "f22c2c6778e7a69c88eec65cfb534da1", "src_uid": "9c5b6d8a20414d160069010b2965b896", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $s) = array(trim(fgets(STDIN)),(string)trim(fgets(STDIN)));\n$pos=0;\nwhile($s[$pos]=='1')\n\t$pos++;\necho min($pos+1,$n);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "89cf3d1022fed4bdf59d87fc7904b725", "src_uid": "54cb2e987f2cc06c02c7638ea879a1ab", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = 0;\nfor($x = 0; $x < $a; $x++)\n{\n    if($b[$x] == 0)\n    {\n        $c++;\n        break;\n    }\n    else\n    {\n        $c++;\n    }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "50d9da6c638a018766edb8ef93239c6e", "src_uid": "54cb2e987f2cc06c02c7638ea879a1ab", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// $STDIN = fopen('./data.txt', 'r');\n// define('STDIN', $STDIN);\nfscanf(STDIN, \"%d\", $n);\n//$arr = explode(' ', fgets(STDIN)); //array input style\n$str = fgets(STDIN);\n$ans = strlen(trim($str));\nfor($i = 0; $i < $ans; ++$i) {\n\tif($str[$i] == '0') {\n\t\t$ans = $i + 1;\n\t\tbreak;\n\t}\n}\necho \"$ans\".\"\\n\";\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "76af769c21860fffdbc718eccc68344f", "src_uid": "54cb2e987f2cc06c02c7638ea879a1ab", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdin = fopen ( 'php://stdin', 'r' );\n$n = intval ( fgets ( $stdin ) );\n$s = fgets ( $stdin );\n$index = 0;\nwhile($index < $n && $s[$index]==='1'){\n\t$index++;\n}\nif($index < $n)\n\t$index++;\nprint $index;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "edd32b9b8a5e92cc8626aaf9f26b2042", "src_uid": "54cb2e987f2cc06c02c7638ea879a1ab", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nfor($x = 1; $x <= $a; $x++)\n{\n     $b = trim(fgets(STDIN));\n     $c = ceil($b / 3);\n     $d = $c * 3;\n     $e = 0;\n     $f = $c;\n     for($y = 1; $y <= $c; $y++)\n     {\n          if($d < $b)\n          {\n               $d += 7;\n               $y--;\n          }\n          elseif($d == $b)\n          {\n               $e = 1;\n               break;\n          }\n          elseif($d > $b)\n          {\n               $d -= 3;\n               $f--;\n               if(($f == 0) && ($d == $b))\n               {\n                    $e = 1;\n                    break;\n               }\n               elseif(($f == 0) && ($d != $b))\n               {\n                    break;\n               }\n          }\n     }\n     if($e == 0)\n     {\n          print \"NO\\n\";\n     }\n     else\n     {\n          print \"YES\\n\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "5959b2156ec88d6f9e9d16dda4bb0124", "src_uid": "cfd1182be98fb5f0c426f8b68e48d452", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = trim(fgets(STDIN));\n\nfunction test($x){\n    \n    for($i=0;$i<=$x;$i++)\n        for($j=0;$j*3 + $i*7 <= $x; $j++)\n            if($j*3 + $i*7 == $x)\n                return \"YES\";\n                \n    return \"NO\";\n    \n}\n\nwhile($n--){\n    $num = trim(fgets(STDIN));\n    echo test($num).\"\\n\";\n}\n\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "ff52ef3a0bf9004f35f0de0f5e83439e", "src_uid": "cfd1182be98fb5f0c426f8b68e48d452", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = trim(fgets(STDIN));\n\n$x_list = [];\nfor ($i = 0; $i < $n; $i++)\n{\n\t$x_list[] = trim(fgets(STDIN));\n}\n\nfor ($i = 0; $i < $n; $i++)\n{\n\t$x = (int)$x_list[$i];\n\n\t$div = floor(($x + 3) / 3);\n\t$rem = $x % 3;\n\n\tif ($x === 0)\n\t{\n\t\techo 'NO'.PHP_EOL;\n\t\tcontinue;\n\t}\n\n\tswitch ($rem)\n\t{\n\t\tcase 0:\n\t\t\techo 'YES'.PHP_EOL;\n\t\t\tbreak;\n\t\tcase 1:\n\t\t\techo ($div >= 3)? 'YES'.PHP_EOL : 'NO'.PHP_EOL;\n\t\t\tbreak;\n\t\tcase 2:\n\t\t\techo ($div >= 5)? 'YES'.PHP_EOL : 'NO'.PHP_EOL;\n\t\t\tbreak;\n\t\tdefault:\n\t\t\tbreak;\n\t}\n}\n", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "4e02a000de6047bf1baef05792dc09ec", "src_uid": "cfd1182be98fb5f0c426f8b68e48d452", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$t = (int)fgets(STDIN);\nfor ($i = 0; $i < $t; $i += 1) {\n    $flag = false;\n    $x = (int)fgets(STDIN);\n    for ($j = 0; $j <= $x; $j +=7) {\n        if (($x - $j) % 3 === 0) {\n            fwrite(STDOUT, \"YES\\n\");\n            $flag = true;\n            break;\n        }\n    }\n    if (! $flag) fwrite(STDOUT, \"NO\\n\");\n}", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "f3b18100f59cddcb700b77240b301c70", "src_uid": "cfd1182be98fb5f0c426f8b68e48d452", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d%d%d\",$a,$b,$c);\n$d = ceil($a*$c/100);\necho $d < $b ? 0 : $d - $b;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "b531a2ab7ecda1541f0c04734d13018d", "src_uid": "7038d7b31e1900588da8b61b325e4299", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d%d%d\",$a,$b,$c);\n$d=(int)($a*$c/100);\nif($a*$c/100>$d)$d++;\nif($d<=$b)echo(\"0\");\nelse echo($d-$b);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "d1a54645eacc86e8cdd54cb03741e11f", "src_uid": "7038d7b31e1900588da8b61b325e4299", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = ceil($a / 100 * $c);\n$e = $d - $b;\nif($e <= 0)\n{\n    print 0;\n}\nelse\n{\n    print $e;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "929917999df39db7cb3771e795432b66", "src_uid": "7038d7b31e1900588da8b61b325e4299", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile($s = fgets(STDIN)){\n    $input .= $s;\n}\n$input = explode(\"\\r\\n\", $input);\n$digits = explode(\" \", $input[0]);\n$n = $digits[0];\n$x = $digits[1];\n$y = $digits[2];\n$oh = 100/$n;\n$ol = $oh * $x;\n$on = $y - $ol;\n$result = max(0,ceil($on/$oh));\necho $result;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "c2bad43742ba23d4b1a0dad210de89ba", "src_uid": "7038d7b31e1900588da8b61b325e4299", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $fp = fopen('php://stdin', 'r');\n    list($total, $have, $percent) = explode(' ', rtrim(fgets($fp)));\n    $need = ceil(($total * $percent) / 100) - $have;\n    if($need < 0)\n        $need = 0;\n    echo $need; \n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "ff47d0013b338a5bdec68b5cac8c8b22", "src_uid": "7038d7b31e1900588da8b61b325e4299", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n,$x,$y) = explode(' ',trim(fgets(STDIN)));\n\nprint (100*$x/$n>$y)?0:ceil($n*$y/100) - $x;\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "f511362b7164dc07bdcd13ac82ce4f36", "src_uid": "7038d7b31e1900588da8b61b325e4299", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//$handle = fopen('input.dat', 'r');\n$handle = fopen('php://stdin', 'r');\n\n$line = fgets($handle);\n\nlist($countZitel, $countVolsheb, $needPercent) = explode(\" \", $line);\n\n$onePercent = $countZitel/100;\n$oneVolshebPercent = 100/$countZitel;\n$volshebPercent = $oneVolshebPercent * $countVolsheb;\n\nif ($volshebPercent < $needPercent) {\n    $needClonesPercent = $needPercent - $volshebPercent;\n    $needClones = $needClonesPercent * $onePercent;\n    echo (int)ceil($needClones);\n}\nelse {\n    echo 0;\n}", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "e5eb7dae8f308060e21e8e9cbd282882", "src_uid": "7038d7b31e1900588da8b61b325e4299", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$first = explode(' ', trim(fgets(STDIN)));\n$n = $first[0];\n$wizard = $first[1];\n$need = $first[2];\n\nif($n / 100 * $need <= $wizard)\n  $k = 0;\nelse\n{\n  $k = ($n / 100) * $need;\n  $k -= $wizard;\n}\n\necho ceil($k);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "40c2ac4e5846b1bd2df125a7bb7c7291", "src_uid": "7038d7b31e1900588da8b61b325e4299", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$n = trim(fgets(STDIN));\n\tfor($i = 0; $i < $n; $i++)\n\t\t$a[$i][0] = $a[0][$i] = 1;\n\tfor($i = 1; $i < $n; $i++)\n\t\tfor($j = 1; $j < $n; $j++)\n\t\t\t$a[$i][$j] = $a[$i][$j-1]+$a[$i-1][$j];\n\techo $a[$n-1][$n-1];\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "a44ea4fa94c7ac3fedfbb21f15a67373", "src_uid": "2f650aae9dfeb02533149ced402b60dc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// 509A     Максимум в таблице \n$in = fopen(\"php://stdin\", 'r');\n\n$input_line = fgets($in);\n$n = (int) $input_line;\n\n$arr = array(array());\nfor ($i=1; $i <= $n; $i++) { \n    $arr[1][$i] = 1;    \n    $arr[$i][1] = 1;    \n}\n\nfor ($i=2; $i <= $n ; $i++) { \n    for ($j=2; $j <= $n ; $j++) { \n        $arr[$i][$j] = $arr[$i-1][$j] + $arr[$i][$j-1];\n    }\n}\necho $arr[$n][$n];\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "c7f6c58955e5ab4e9ee6ac37058b1cc6", "src_uid": "2f650aae9dfeb02533149ced402b60dc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN,\"%d\",$n);\n$max=0;\nfor($i=0;$i<$n;$i++)\n{\n\tfor($j=0;$j<$n;$j++)\n\t{\n\t\tif($i==0||$j==0)\n\t\t$array[$i][$j]=1;\n\t    else\n\t    \t$array[$i][$j]=$array[$i-1][$j]+$array[$i][$j-1];\n\t    if($array[$i][$j]>$max)\n\t    \t$max=$array[$i][$j];\n\t}\n}\necho \"$max\";\n//print_r($array);", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "d55acb86d9ba1d94e0135da46a6405eb", "src_uid": "2f650aae9dfeb02533149ced402b60dc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\t\tfunction read_stdin()\n\t{\n\t        $fr=fopen(\"php://stdin\",\"r\");   // open our file pointer to read from stdin\n\t        $input = fgets($fr,128);        // read a maximum of 128 characters\n\t        $input = rtrim($input);         // trim any trailing spaces.\n\t        fclose ($fr);                   // close the file handle\n\t        return $input;                  // return the text entered\n\t}\n\t$n = read_stdin();\n\t$array = array();\n\t//echo '1';\n\tfor($i=0;$i<$n;$i++){\n\t\t//echo '1';\n\t\tfor($j=0;$j<$n;$j++){\n\t\t\t$array[$i][$j] = 0;\n\t\t\t//echo '1';\n\t\t}\n\t}\n\tfor($i=0;$i<$n;$i++){\n\t\t$array[$i][0] = 1;\n\t}\n\tfor($j=0;$j<$n;$j++){\n\t\t$array[0][$j] = 1;\n\t}\n\tfor($i=1;$i<$n;$i++){\n\t\tfor($j=1;$j<$n;$j++){\n\t\t\t$array[$i][$j] = $array[$i-1][$j]+$array[$i][$j-1];\n\t\t}\n\t}\n\t$ans = array();\n\tforeach($array as $key => $value){\n\t\t$ans = max($value);\n\t}\n\t//$ans = max($array);\n\t//var_dump($ans);\n\techo $ans;\n\n ?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "c0cdccf56b4492699437ad2523889f26", "src_uid": "2f650aae9dfeb02533149ced402b60dc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile (fscanf(STDIN, \"%d\", $n)){\n    $data = array();\n    for ($i = 0; $i < $n; ++$i){\n        $data[0][$i] = 1;\n    }\n    \n    for ($i = 0; $i < $n; ++$i){\n        $data[$i][0] = 1;\n    }\n    \n    for ($i = 1; $i < $n; ++$i){\n        for ($m = 1; $m < $n; ++$m){\n            $data[$m][$i] = $data[$m - 1][$i] + $data[$m][$i - 1];\n        }\n    }\n    \n    echo $data[$n - 1][$n - 1] . \"\\n\";\n}", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "0a6d45b04bb3200be7ac85025c828a42", "src_uid": "2f650aae9dfeb02533149ced402b60dc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  fscanf(STDIN, \"%d\\n\", $n);\n  $table[15][15];\n  for ($i = 0; $i < $n; $i++) {\n      for ($j = 0; $j < $n; $j++) {\n          if ($i == 0 || $j == 0) {\n              $table[$i][$j] = 1;\n          } else {\n              $table[$i][$j] = $table[$i - 1][$j] + $table[$i][$j - 1];\n          }\n      }\n  }\n  echo $table[$n - 1][$n - 1];", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "c2656705b4e9f89243429d5438397279", "src_uid": "2f650aae9dfeb02533149ced402b60dc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$num = (int) trim(fgets(STDIN));\n\n$matrix = [];\nfor ($i = 0; $i < $num; $i++) {\n    for ($j = 0; $j < $num; $j++) {\n        $sum = 0;\n\n        if (isset($matrix[$i-1])) {\n            for ($t = 0; $t <= $j; $t++) {\n                $sum += $matrix[$i-1][$t];\n            }\n        }\n\n        if ($sum == 0) {\n            $sum = 1;\n        }\n        $matrix[$i][$j] = $sum;\n    }\n}\n\necho $sum;", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "46430b9dcbf8f53746625125e19c0ace", "src_uid": "2f650aae9dfeb02533149ced402b60dc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN));\n    \n    $arr = array();\n    $arr[] = array();\n    \n    for($i=1; $i<=$n; $i++)\n    {\n        $arr[$i][1] = 1;\n        $arr[1][$i] = 1;\n    }\n    \n    for($i=2; $i<=$n; $i++)\n        for($j=2; $j<=$n; $j++)\n            $arr[$i][$j] = $arr[$i-1][$j] + $arr[$i][$j-1];\n    \n    echo $arr[$n][$n] . PHP_EOL;\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "e31e96b3bcd7a6405199b26de2a914ef", "src_uid": "2f650aae9dfeb02533149ced402b60dc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\n$a = array(0,1,2,6,20,70,252,924,3432,12870,48620);\necho $a[$n];\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "0e9db01e4701adb3eabf89b0929240a3", "src_uid": "2f650aae9dfeb02533149ced402b60dc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $m) = explode(\" \", fgets(STDIN));\n$c = 0;\nfor($a = 0; $a <= 1000; $a++)\n{\n    for($b = 0; $b <= 1000; $b++) \n    {\n        if((($a*$a) + $b == $n) && ($a + ($b*$b) == $m))\n        {\n            $c++;\n        }\n    }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "473bebc05b609da634a54cc19e3750bf", "src_uid": "03caf4ddf07c1783e42e9f9085cc6efd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $m) = explode(' ',trim(fgets(STDIN)));\n$result=0;\nfor ($i=0;$i<=sqrt($m);$i++) {\n    $t=$i*$i;\n    if ($t*$t-2*$t*$m+$m*$m+$i-$n == 0) {   \n        $result++;\n    }\n}\necho $result;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "fb9b0dbf03df1376db40f8954a319091", "src_uid": "03caf4ddf07c1783e42e9f9085cc6efd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdin=fopen(\"php://stdin\",\"r\");\n$stdout=fopen(\"php://stdout\",\"w\");\n$t=explode(\" \",fgets($stdin));\n$a=$t[0];$b=$t[1];\n$ans=0;\nfor($i=0;$i<34;++$i){\n    for($j=0;$j<34;++$j){\n        if($i+$j*$j==$a && $i*$i+$j==$b)++$ans;\n    }\n}\nfputs($stdout,$ans);\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "fe36111536fed8960ad784a73031ed1a", "src_uid": "03caf4ddf07c1783e42e9f9085cc6efd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\n$nums = explode(\" \", stream_get_contents(fopen(\"php://stdin\", 'r')));\n\n$result = 0;\nfor($i = 0; $i <= 1000; $i++){\n\tfor($k = 0; $k <= 1000; $k++){\n\t\tif((pow($i, 2) + $k) == $nums[0]){\n\t\t\tif((pow($k, 2) + $i) == $nums[1]) $result++;\n\t\t}\n\t}\n}\n\necho $result;\n\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "de6ce5fcd8c696f435a9efc2480ff5ac", "src_uid": "03caf4ddf07c1783e42e9f9085cc6efd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$flag = 1; //must be not zero for STDIN\n$in = 'php://stdin';\nif (!$flag)\n{\n    $in = \"input.txt\";\n}\n$fd = fopen($in, \"r\");\nfscanf($fd, \"%d %d\\n\", $n, $m);\nfclose($fd);\n\n$sum1=0; $result=0;\nfor ($a=0;$a<34;$a++)\n{\n    for ($b=0;$b<1001;$b++)\n{\n   $sum1=$a*$a+$b;\n   if ($sum1==$n)\n   {\n       $sum2=$a+$b*$b;\n      if ($sum2==$m)\n      {\n          $result++;\n      }\n   }\n}\n}\nprint $result.\"\\n\";\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "5f401e4936dd03052aaa9c28d1fe1929", "src_uid": "03caf4ddf07c1783e42e9f9085cc6efd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN , \"%d%d\" , $n,$m);\n$ans = 0;\nfor($i=0;$i*$i<=$n;$i++)\n    for($j=0;$i*$i+$j<=$n && $i+$j*$j<=$m;$j++) {\n        if($i*$i+$j==$n && $i+$j*$j==$m) $ans ++;\n    }\necho $ans;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "1e0b26e464307474ddf5db3580954459", "src_uid": "03caf4ddf07c1783e42e9f9085cc6efd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d%d\",$n,$m);\n$cnt=0;\nfor($i=0;$i<=100;$i++)\n{\n    for($j=0;$j<=100;$j++)\n    {\n        if($i*$i+$j==$n\n        &&$i+$j*$j==$m)$cnt++;\n    }\n}\necho($cnt);\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "89cc546a8480da8e20848611d73d6c47", "src_uid": "03caf4ddf07c1783e42e9f9085cc6efd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $m) = explode(' ',trim(fgets(STDIN)));\n\n$r = 0;\nfor($i=0;$i<33;$i++)\n for($j=0;$j<33;$j++)\n  if($i * $i + $j == $n && $i + $j * $j == $m) $r++;\n\nprint $r;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "6ce909b6e0defdcef6467a5439dc7f97", "src_uid": "03caf4ddf07c1783e42e9f9085cc6efd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile($s = fgets(STDIN)){\n        $input .= $s;\n}\n$input = explode(\"\\r\\n\", $input);\n$digits = explode (\" \", $input[0]);\n$n=$digits[0];\n$m=$digits[1];\n$result=0;\nfor ($i=0;$i<33;$i++) {\n    $t=$i*$i;\n    if ($t*$t-2*$t*$m+$m*$m+$i-$n == 0) {   \n        $a=$m-$t;\n        if (($i == $n-$a*$a)and ($a >= 0)) {\n            $result++;\n        }\n    }\n}\necho $result;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "017af207b2d8e83f69716922edd9b191", "src_uid": "03caf4ddf07c1783e42e9f9085cc6efd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nrsort($b);\n$c = 0;\nwhile(TRUE)\n{\n     $d = $b[0];\n     $c += $d;\n     $b = array_slice($b, 1);\n     for($x = 0; $x < count($b); $x++)\n     {\n          if($b[$x] == $d)\n          {\n               $b[$x]--;\n          }\n          else\n          {\n               break;\n          }\n     }\n     if($b[0] == 0)\n     {\n          break;\n     }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "b39ee6d69927b986d33d1c7166220e81", "src_uid": "3c4b2d1c9440515bc3002eddd2b89f6f", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d%d\",$n,$m);\nif($n===1)die('1');\nif($n&1&&$m-1===$n>>1)die(strval($m-1));\nprint($m>$n+1>>1?$m-1:$m+1);", "lang_cluster": "PHP", "tags": ["constructive algorithms", "games", "math", "greedy", "implementation"], "code_uid": "4bed59e8c9782ee77289991490f17724", "src_uid": "f6a80c0f474cae1e201032e1df10e9f7", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str_in = trim(fgets(STDIN));\n$st_in_arr = explode(\" \", $str_in);\n$s = 0;\n$cur_d = 5;\n$n = $st_in_arr[0];\n$word = $st_in_arr[2];\n$m = array(31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);\nif ($word == \"week\") {\n    for ($i = 1; $i <= 366; $i++) {\n        if ($n == $cur_d) $s++;\n        $cur_d++;\n        if ($cur_d > 7) $cur_d = 1;\n    }\n} else {\n    for ($i = 0; $i < 12; $i++) {\n        if ($n <= $m[$i]) $s++;\n    }\n}\necho $s;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6ff98c48e56ea1a3a5e09a0e20d6c22c", "src_uid": "9b8543c1ae3666e6c163d268fdbeef6b", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nif($c == \"week\")\n{\n    $d = array(\"52\", \"52\", \"52\", \"52\", \"53\", \"53\", \"52\");\n    print $d[$a - 1];\n}\nelse\n{\n    $e = array(\"31\", \"29\", \"31\", \"30\", \"31\", \"30\", \"31\", \"31\", \"30\", \"31\", \"30\", \"31\");\n    $f = 0;\n    for($x = 0; $x < 12; $x++)\n    {\n        if($a <= $e[$x])\n        {\n            $f++;\n        }\n    }\n    print $f;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "fd716e41e7174045bbbfff2db082fc67", "src_uid": "9b8543c1ae3666e6c163d268fdbeef6b", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str_in = trim(fgets(STDIN));\n$st_in_arr = explode(\" \", $str_in);\n$s = 0;\n$cur_d = 5;\n$n = $st_in_arr[0];\n$word = $st_in_arr[2];\n$m = array(31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);\nif ($word == \"week\") {\n    for ($i = 1; $i <= 366; $i++) {\n        if ($n == $cur_d) {\n            $s++;\n        }\n        $cur_d++;\n        if ($cur_d > 7) {\n            $cur_d = 1;\n        }\n\n    }\n}\nif ($word == \"month\") {\n    for ($i = 0; $i < 12; $i++) {\n        if ($n <= $m[$i]) {\n            $s++;\n        }\n    }\n}\necho $s;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6efaad7b8ada068975be2dae70562dc5", "src_uid": "9b8543c1ae3666e6c163d268fdbeef6b", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($x, $y, $wm) = explode(\" \", trim(fgets(STDIN)));\n$x = (int) $x;\n\nswitch ($wm) {\n\tcase 'week':\n\t\tif ($x == 5 || $x == 6) $n = 53;\n\t\telse $n = 52;\n\t\tbreak;\n\tcase 'month':\n\t\tif ($x == 31) $n = 7;\n\t\telse if ($x == 30) $n = 11; \n\t\telse $n = 12;\n\t\tbreak;\n}\nprint $n;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "456ff5e701b6d97057986da22c44ce2b", "src_uid": "9b8543c1ae3666e6c163d268fdbeef6b", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tlist($a, $b) = fscanf(STDIN,'%d%d');\n\tlist($s) = fscanf(STDIN,'%s');\n\t$s = 'YYYY'.$s.'YYYYY';\n\t$len = strlen($s);\n\t$s = $s.'YYYYYYYYYYYYYYYYYY'.$s;\n\t$poss = false;\n\tfor ($i = 1; $i < $len; $i++) {\n\t\t$flag = true;\n\t\tif ($s[$i - 1] == 'N') $flag = false;\n\t\tfor ($k = 0; $k < $b; $k++) {\n\t\t\tif ($s[$k + $i] == 'Y') $flag = false;\n\t\t}\n\t\tif ($s[$i + $b] == 'N') $flag = false;\n\t\tif ($flag == true) {\n\t\t\t$poss = true;\n\t\t} \t\t\n\t}\n\t\n\t$max = 0;\n\t$cur = 0;\n\tfor ($i = 0; $i < $len; $i++) {\n\t\tif ($s[$i] == 'N') {\n\t\t\t$cur++;\n\t\t\tif ($cur > $max) $max = $cur;\n\t\t} else {\n\t\t\t$cur = 0;\t\t\t\n\t\t}\n\t}\n\tif ($max > $b) {\n\t\t$poss = false;\n\t}\n\t\n\tif ($poss == true) {\n\t\techo 'YES';\n\t} else {\n\t\techo 'NO';\n\t}\n?>", "lang_cluster": "PHP", "tags": ["dp"], "code_uid": "8321d77db89c338dc0bccec9b53111bd", "src_uid": "5bd578d3da5837c259b222336a194d12", "difficulty": 2000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php  \n    fscanf(STDIN, \"%d %d\", $n, $k);\n    fscanf(STDIN, \"%s\", $st);\n    $num = 0; $ans = 0;\n    for ($i = 0; $i < $n; $i ++)\n        if ($i + $k <= $n) {\n            $num = 1;\n            for ($j = $i; $j < $i + $k; $j ++)\n                if ($st[$j] == 'Y')\n                    $num = 0;\n            if ($i > 0 && $st[$i - 1] == 'N') $num = 0;\n            if (($i + $k < $n) && ord($st[$i + $k]) == ord('N')) $num = 0;\n            if ($num == 1) $ans = 1;\n        }\n        \n    $num = 0; $res = 0;\n    for ($i = 0; $i < $n; $i ++) {\n        if ($st[$i] == 'N')\n            $num ++;\n        else {\n            if ($num > $res) $res = $num;\n            $num = 0;\n        }\n    }\n    if ($num > $res) $res = $num;\n        \n    if ($ans == 1 && $k >= $res) {\n        fprintf(STDOUT, \"YES\");\n    }\n    else {\n        fprintf(STDOUT, \"NO\");\n    }\n?>  ", "lang_cluster": "PHP", "tags": ["dp"], "code_uid": "215e560376605609d4c7fa0817934c86", "src_uid": "5bd578d3da5837c259b222336a194d12", "difficulty": 2000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$handle = fopen (\"php://stdin\",\"r\");\n$lines = array();\n$lines[0] = fgets($handle);\n$lines[1] = fgets($handle);\nfclose($handle);\n\n$v_girl_fingers = explode(\" \", $lines[0]);\n$m_boy_fingers = explode(\" \", $lines[1]);\n\nfor( $i = 0; $i < 2; $i++ ) {\n\t$v_girl_finger = (int)$v_girl_fingers[$i];\n\t$m_boy_finger = (int)$m_boy_fingers[1-$i];\n\n#\tvar_dump($v_girl_finger);\n#\tvar_dump($m_boy_finger);\n#\tvar_dump('===================');\n\tif ( $v_girl_finger >= (ceil($m_boy_finger/2)-1) && $v_girl_finger <= ($m_boy_finger + 1) ) {\n\t\techo \"YES\";\n\t\texit(0);\n\t}\n}\n\necho \"NO\";\nexit(0);\n", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "0c47c1a45b6b9c373577b4c5e613ba87", "src_uid": "36b7478e162be6e985613b2dad0974dd", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\nif(($a == 1) && ($d <= 4))\n{\n     print \"YES\";\n}\nelseif(($b == 1) && ($c <= 4))\n{\n     print \"YES\";\n}\nelseif(($c == 1) && ($b <= 2))\n{\n     print \"YES\";\n}\nelseif(($d == 1) && ($a <= 2))\n{\n     print \"YES\";\n}\nelse\n{\n     $e = $a;\n     $e++;\n     $f = $e * 2;\n     if(($d >= $e - 2) && ($d <= $f))\n     {\n          print \"YES\";\n     }\n     else\n     {\n          $g = $b;\n          $g++;\n          $h = $g * 2;\n          if(($c >= $g - 2) && ($c <= $h))\n          {\n               print \"YES\";\n          }\n          else\n          {\n               print \"NO\";\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "8821e3d99e54e5dd8172462f486c39c0", "src_uid": "36b7478e162be6e985613b2dad0974dd", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($al, $ar) = explode(' ',trim(fgets(STDIN)));\nlist($bl, $br) = explode(' ',trim(fgets(STDIN)));\n\nif((($bl - 2) / $ar <= 2 && $ar - $bl <= 1 ) || (($br - 2) / $al <= 2 && $al - $br <= 1 ))\n print 'YES'; else print 'NO';\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "dc5b439bd00b13121bc3df12e501bfb8", "src_uid": "36b7478e162be6e985613b2dad0974dd", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist ($L, $n1, $n2, $n3) = explode(\" \", trim(fgets(STDIN)));\n$parts = Array($n1, $n2, $n3);\nsort($parts);\nfunction f($x, $N)\n{\n    global $CACH, $parts,$L;\n    $CACH[$x] = $N;\n    foreach ($parts as $part)\n        if (($CACH[$x + $part] < $N + 1) && ($x + $part <= $L)) {\n\n            f($x + $part, $N + 1);\n        }\n}\n\nf(0, 0);\necho $CACH[$L];\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "dp"], "code_uid": "4be895c3e62da3e79382c2ad51c106ad", "src_uid": "062a171cc3ea717ea95ede9d7a1c3a43", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = array($b, $c, $d);\nsort($e);\n$f = floor($a / $e[0]);\n$g = $a % $e[0];\n$h = 0;\n$j = $f;\n$k = array();\nfor($x = 1; $x <= $j; $x++)\n{\n    if(($g % $e[1]) == 0)\n    {\n        $h = 1;\n        $i = $g / $e[1];\n        break;\n    }\n    elseif(($g % $e[2]) == 0)\n    {\n        $h = 1;\n        $i = $g / $e[2];\n        break;\n    }\n    elseif(($g % ($e[1] + $e[2])) == 0)\n    {\n        $h = 1;\n        $i = ($g / ($e[1] + $e[2])) * 2;\n        break;\n    }\n    else\n    {\n        $f--;\n        $g += $e[0];\n    }\n}\narray_push($k, $f + $i);\n$f = floor($a / $e[1]);\n$g = $a % $e[1];\n$j = $f;\nfor($x = 1; $x <= $j; $x++)\n{\n    if(($g % $e[0]) == 0)\n    {\n        $h = 1;\n        $i = $g / $e[0];\n        break;\n    }\n    elseif(($g % $e[2]) == 0)\n    {\n        $h = 1;\n        $i = $g / $e[2];\n        break;\n    }\n    elseif(($g % ($e[0] + $e[2])) == 0)\n    {\n        $h = 1;\n        $i = ($g / ($e[0] + $e[2])) * 2;\n        break;\n    }\n    else\n    {\n        $f--;\n        $g += $e[1];\n    }\n}\narray_push($k, $f + $i);\n$f = floor($a / $e[2]);\n$g = $a % $e[2];\n$j = $f;\nfor($x = 1; $x <= $j; $x++)\n{\n    if(($g % $e[0]) == 0)\n    {\n        $h = 1;\n        $i = $g / $e[0];\n        break;\n    }\n    elseif(($g % $e[1]) == 0)\n    {\n        $h = 1;\n        $i = $g / $e[1];\n        break;\n    }\n    elseif(($g % ($e[0] + $e[1])) == 0)\n    {\n        $h = 1;\n        $i = ($g / ($e[0] + $e[1])) * 2;\n        break;\n    }\n    else\n    {\n        $f--;\n        $g += $e[2];\n    }\n}\narray_push($k, $f + $i);\nprint max($k);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "dp"], "code_uid": "ff1407122b40c8df4aa8a527208f1cb2", "src_uid": "062a171cc3ea717ea95ede9d7a1c3a43", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction dd($t) {\n    if (is_array($t)) {\n        print_r($t);\n        die;\n    }\n    var_dump($t);\n    die;\n}\n\n\n// Read\n$in = fopen( 'php://stdin', 'r' );\n$line = explode(' ', fgets($in));\nfclose($in);\n\n$n = intval($line[0]);\n$a = intval($line[1]);\n$b = intval($line[2]);\n$c = intval($line[3]);\n\nfunction getSolution($n, $ribbons)\n{\n    $dp = array_fill(0, $n+5, -10000);\n    $dp[0] = 0;\n    foreach ($ribbons as $r) {\n        for ($i = $r; $i <= $n; $i++) {\n            $dp[$i] = max($dp[$i], $dp[$i-$r] + 1);\n        }\n    }\n    return $dp[$n];\n}\n\n// Write\n$out = fopen('php://stdout', 'w');\n$ribbons = [$a, $b, $c];\n$answer = getSolution($n, $ribbons);\nfputs($out, $answer);\nfclose($out);", "lang_cluster": "PHP", "tags": ["brute force", "dp"], "code_uid": "9640487886a81a06d3ee6caaa8822411", "src_uid": "062a171cc3ea717ea95ede9d7a1c3a43", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  fscanf(STDIN, \"%d%d\", $n, $d);\n  $s = fgets(STDIN);\n  \n  function solve($n, $d, $s) {\n    list($pre, $pos, $cnt) = array(-1, 0, 0);\n    while ($pos != $n - 1 && $pre != $pos) {\n      $pre = $pos;\n      for ($i = 1; $i <= $d; $i++)\n        if ($pre + $i < $n && $s[$pre + $i] == '1')\n          $pos = $pre + $i;\n      $cnt++;\n    }\n    return ($pos == $n - 1) ? $cnt : -1;\n  }\n  \n  fprintf(STDOUT, solve($n, $d, $s));\n?>", "lang_cluster": "PHP", "tags": ["dfs and similar", "greedy", "dp", "implementation"], "code_uid": "af64560fa752d7a5fc99f7ba8a689ab3", "src_uid": "c08d2ecdfc66cd07fbbd461b1f069c9e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d %d\", $n, $m, $k);\n\nif ($n <= $m && $n <= $k) {\n    echo \"Yes\";\n}\nelse echo \"No\";\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "728b077276ba8ef4ceb7f4ecb4c4cea7", "src_uid": "6cd07298b23cc6ce994bb1811b9629c4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\n$b = min($a);\nif($a[0] > $b)\n{\n     print \"No\";\n}\nelse\n{\n     print \"Yes\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4723f108b84d9f882df1d6983852be57", "src_uid": "6cd07298b23cc6ce994bb1811b9629c4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n#1186A\n[$n, $m, $k] = fscanf(STDIN, '%u %u %u');\n\necho min($m,$k) >= $n ? 'YES' : 'NO';\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "fc66988fcdba17a34bee3977a3d8e172", "src_uid": "6cd07298b23cc6ce994bb1811b9629c4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$ar = explode(' ', fgets(STDIN));\nif((int)$ar[0] <= min(array_map('intval', $ar)))\n    echo \"Yes\";\nelse\n    echo \"No\";", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "775a4de1c81762f9e33351b47f864840", "src_uid": "6cd07298b23cc6ce994bb1811b9629c4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$s = trim(fgets(STDIN));\n\n$data = explode(\" \", $s);\n\n$n = $data[0];\n$m = $data[1];\n$k = $data[2];\n\necho ($n <= $m && $n <= $k) ? \"YES\" : \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "896f46bbf2bf47e6d64eff0bc3c36e6f", "src_uid": "6cd07298b23cc6ce994bb1811b9629c4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$ar = explode(' ', fgets(STDIN));\nif((int)$ar[0] <= (int)$ar[1] && (int)$ar[0] <= (int)$ar[2])\n    echo \"Yes\";\nelse\n    echo \"No\";", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "dfa17e86ddc6c51ca399a9b47edb7b17", "src_uid": "6cd07298b23cc6ce994bb1811b9629c4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $m, $k) = array_map('intval', explode(' ', trim(fgets(STDIN))));\nif ($n > $m || $n > $k) {\n    echo 'No';\n} else {\n    echo 'Yes';\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "fbc02c27cb551aba2b8a5b0696a0f2a7", "src_uid": "6cd07298b23cc6ce994bb1811b9629c4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction isAlmostSimple($n, $simple_nums){\n    $simple_del = 0;\n    foreach($simple_nums as $sn){\n        if($sm >= $n || $simple_del > 2) break;\n        if($n%$sn==0) $simple_del++;\n    }\n    if($simple_del == 2) return true;\n    return false;\n}\n$lines  = @file(\"php://stdin\");\n$limit = $lines[0];\n$simple_nums = [2,3];\nfor($i = 5; $i <= $limit/2; $i+=2){\n    $simple = true;\n    for($j=3; $j <= $i/2; $j++){\n        if($i%$j == 0) {\n            $simple = false;\n            break;\n        }\n    }\n    if($simple) $simple_nums[] = $i;\n}\n\n$count = 0;\nfor($i=1; $i <= $limit; $i++){\n    if(isAlmostSimple($i, $simple_nums)) $count++;\n}\necho $count;", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "d9c989b1dc0e06fc387149c101dc8e52", "src_uid": "356666366625bc5358bc8b97c8d67bd5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$m = array(\"2\", \"3\", \"5\", \"7\");\n$c = 0;\n$d = array();\nfor($x = 11; $x <= 100; $x++)\n{\n    if((($x % 2) != 0) && (($x % 3) != 0) && (($x % 5) != 0) && (($x % 7) != 0))\n    {\n        array_push($m, $x);\n    }\n}\nfor($x = 101; $x <= 3000; $x++)\n{\n    if((($x % 2) != 0) && (($x % 3) != 0) && (($x % 5) != 0) && (($x % 7) != 0) && (($x % 11) != 0) && (($x % 13) != 0) && (($x % 17) != 0) && (($x % 19) != 0) && (($x % 23) != 0) && (($x % 29) != 0) && (($x % 31) != 0) && (($x % 37) != 0) && (($x % 39) != 0) && (($x % 41) != 0) && (($x % 43) != 0) && (($x % 47) != 0) && (($x % 53) != 0) && (($x % 59) != 0) && (($x % 61) != 0) && (($x % 67) != 0) && (($x % 71) != 0) && (($x % 79) != 0) && (($x % 83) != 0) && (($x % 89) != 0) && (($x % 91) != 0 && (($x % 97) != 0)))\n    {\n        array_push($m, $x);\n    }\n}\nfor($y = 1; $y <= $a; $y++)\n{\n    for($z = 0; $z < count($m); $z++)\n    {\n        if($y % $m[$z] == 0)\n        {\n            $c++;\n        }\n    }\n    if($c == 2)\n    {\n        array_push($d, $y);\n        $c = 0;\n    }\n    else\n    {\n        $c = 0;\n    }\n}\nprint count($d);\n?>", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "c33819ba4bf999815ff5b6101b2184a2", "src_uid": "356666366625bc5358bc8b97c8d67bd5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n    $stdin = fopen('php://stdin', 'r');\n    $stdout = fopen('php://stdout', 'w');\n  \n    $n = fgets($stdin);\n    \n    $count_final=0;// кол-во почти простых чисел\n    //каждое число проверяем на почти простоту\n    for($i=1;$i<=$n;++$i){\n        $list_divided = array();\n        $cur = $i;\n        for($j=2; $j<$n/2 + 1;++$j){\n            if(count($list_divided) == 2) break;\n            foreach($list_divided as $tmp){\n                if(fmod($cur, (double)$tmp)==0){\n                    $j++;\n                    break;\n                }\n            }\n            if(fmod($cur, (double)$j) == 0){\n                $list_divided[]=$j;\n                while(fmod($cur,(double)$j) == 0){\n                    $cur/=$j;\n                }\n                if(($cur == 1)&&(count($list_divided)==2)){\n                    $count_final++;\n                    break;\n                }\n            }\n        }\n    }\n    fputs($stdout, $count_final);\n\n?>\n", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "5a029c49fb9e954d30ad4f3b35597b4b", "src_uid": "356666366625bc5358bc8b97c8d67bd5", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nif($c <= $b)\n{\n     print $c;\n}\nelseif($c <= $a)\n{\n     print $b;\n}\nelse\n{\n     $d = $c - $a;\n     $e = max(0, $b - $d);\n     print $e;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "0643cbbb5b28b3ee76a94d4ff1cb3b34", "src_uid": "7e614526109a2052bfe7934381e7f6c2", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$names = array(\"vaporeon\", \"jolteon\", \"flareon\", \"espeon\", \"umbreon\", \"leafeon\", \"glaceon\", \"sylveon\");\n$num = (int)trim(fgets(STDIN));\n$str = trim(fgets(STDIN));\n$rezult='';\n\nif ($num<6 || $num >8) exit;\n\nforeach($names as $k=>$v){\nif(strlen($v)==$num){\n$temp=0;\nfor($i=0;$i<=strlen($str)-1;$i++){\n\nif($v[$i]==$str[$i] || $str[$i]=='.'){\n$temp++;\n}\n\n}\nif($temp==$num){$rezult=$v;}\n}\n}\n\nprint $rezult;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "6b353354bc3996d195fc9c0a388719f9", "src_uid": "ec3d15ff198d1e4ab9fd04dd3b12e6c0", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$n);\n$str=trim(fgets(STDIN));\n$eve=[\n\t\t 0=>\"vaporeon\",\n\t\t 1=>\"jolteon\",\n\t\t 2=>\"flareon\", \n\t\t 3=>\"espeon\", \n\t\t 4=>\"umbreon\",\n\t\t 5=>\"leafeon\", \n\t\t 6=>\"glaceon\", \n\t\t 7=>\"sylveon\"\n    ];\n $ev1=\"vaporeon\";\n $ev2=\"jolteon\";\n $ev3=\"flareon\";\n $ev4=\"espeon\";\n $ev5=\"umbreon\";\n $ev6=\"leafeon\";\n $ev7=\"glaceon\";\n $ev8=\"sylveon\";\nif($str=='......')\necho \"espeon\";\nelseif ($str=='........')\n {\n \techo \"vaporeon\";\n\t# code...\n}\n\n\n\nelse\n{\n\n\n   \n   \n   $flag=0;\n   $max=0;\n   //$length=9;\n   $trgetStr=findTrgtStr($str);\nfor ($i=0; $i <count($eve) ; $i++)\n{   \n\n\t$count=0;\n\n   for ($j=0; $j <5 ; $j++)\n    { \n     \n   \t   if($eve[$i][$j]==$trgetStr[$count])\n   \t   {\n               \n   \t   \t   $count++;\n   \t   \t  // $str3=$eve[$i];\n\n   \t   \t   if($count==strlen($trgetStr))\n   \t   \t   {\n             //echo \"$str3\\n\";\n   \t   \t   \t$flag=1;\n   \t   \t   \tbreak;\n   \t   \t   }\n   \t   }\n   \t        \n    }   \n\n          \n\n          if($count>=$max&&strlen($eve[$i])==$n)\n          {\n          \t$max=$count;\n          \t//$length=strlen($eve[$i]);\n          \t$str3=$eve[$i];\n          }\n          //echo \"$max\\n\";\n\n   \n   \n}\t\nprint_r($str3);\n}\n\nfunction findTrgtStr($str)\n{\n\t$trgetStr=\"\";\nfor ($i=0; $i <strlen($str) ; $i++)\n{ \n\tif($str[$i]=='.')\n\t\tcontinue;\n\telse\n\t\t$trgetStr.=$str[$i];\n\n}\nreturn $trgetStr;\n}", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "4199065cb69409ab12ddfa3adf5e45f5", "src_uid": "ec3d15ff198d1e4ab9fd04dd3b12e6c0", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//$t = microtime(true);\n$n = (int)(trim(readln()));\n\nif ($n === 6) {\n\techo 'espeon';\n\tdie();\n}\nelseif ($n === 8) {\n\techo 'vaporeon';\n\tdie();\n}\nelseif ($n === 7) {\n\t$ar = array(\n\t\t'jolteon',\n\t\t'flareon',\n\t\t'umbreon',\n\t\t'leafeon',\n\t\t'glaceon',\n\t\t'sylveon'\n\t);\n\t$str = trim(readln());\n\tfor($i = 0; $i < 7; $i++) {\n\t\t$char = $str[$i];\n\t\tif ($str[$i] === '.') {\n\t\t\tcontinue;\n\t\t}\n\t\t$ar = array_filter($ar, function($item) use ($char, $i) {\n\t\t\treturn $item[$i] == $char;\n\t\t});\n\t}\n\techo reset($ar);\n}\n\n\n//echo $t - microtime(true);\nfunction readln()\n{\n\tstatic $input =null;\n\tif ($input === null) {\n\t\t$input = fopen('php://STDIN', 'r');\n//\t\t$debug = __FILE__ . '.txt';\n//\t\tvar_dump($debug);\n//\t\t$input = fopen($debug, 'r');\n\t}\n\treturn trim(fgets($input));\n}", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "8b7a4267ec045881ce5abd24ba56e846", "src_uid": "ec3d15ff198d1e4ab9fd04dd3b12e6c0", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * User: Nash\n * Date: 7/27/14\n * Time: 10:29 PM\n */\n$in = fopen('php://stdin', 'r');\n\n$names = array(\"jolteon\", \"flareon\", \"umbreon\", \"leafeon\", \"glaceon\", \"sylveon\");\n$pos = array(1,1,1,1,1,1);\n$n = intval(rtrim(fgets($in)));\n$s = rtrim(fgets($in));\n\nif($n==6){\n    echo \"espeon\";\n}\nelse if($n==8){\n    echo \"vaporeon\";\n}else{\n    $c = 6;\n    for($i=0; $i<$n; $i++){\n        if($s[$i]!=\".\"){\n            foreach($names as $k => $name){\n                if($pos[$k] && $s[$i]!=$name[$i]){\n                    $pos[$k] = 0;\n                    $c--;\n                }\n            }\n            if($c==1){\n                break;\n            }\n        }\n    }\n\n    for($i=0; $i<$n; $i++){\n        if($pos[$i]){\n            echo $names[$i];\n            break;\n        }\n    }\n\n}\n", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "7c769f29f1811fc5d805066a7fd15b69", "src_uid": "ec3d15ff198d1e4ab9fd04dd3b12e6c0", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array(\"vaporeon\", \"jolteon\", \"flareon\", \"espeon\", \"umbreon\", \"leafeon\", \"glaceon\", \"sylveon\");\nif($a == 6)\n{\n    print $c[3];\n}\nelseif($a == 8)\n{\n    print $c[0];\n}\nelse\n{\n    $d = 0;\n    for($x = 0; $x < $a; $x++)\n    {\n        if($b[$x] != \".\")\n        {\n            $d++;\n        }\n    }\n    for($x = 0; $x < 8; $x++)\n    {\n        $e = 0;\n        for($y = 0; $y < $a; $y++)\n        {\n            if(($b[$y] == $c[$x][$y]) && ($b[$y] != \".\"))\n            {\n                $e++;\n            }\n        }\n        if($e == $d)\n        {\n            break;\n        }\n    }\n    print $c[$x];\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "7a18305220b5f628909a04dc8ddda6cd", "src_uid": "ec3d15ff198d1e4ab9fd04dd3b12e6c0", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$n);\n$str=trim(fgets(STDIN));\n$eve=[\n\t\t 0=>\"vaporeon\",\n\t\t 1=>\"jolteon\",\n\t\t 2=>\"flareon\", \n\t\t 3=>\"espeon\", \n\t\t 4=>\"umbreon\",\n\t\t 5=>\"leafeon\", \n\t\t 6=>\"glaceon\", \n\t\t 7=>\"sylveon\"\n    ];\n\nif($str=='......')\necho \"espeon\";\nelseif ($str=='........')\n {\n \techo \"vaporeon\";\n\t# code...\n}\n\n\n\nelse\n{\n\n\n   \n   \n   $flag=0;\n   $max=0;\n   //$length=9;\n   $trgetStr=findTrgtStr($str);\nfor ($i=0; $i <count($eve) ; $i++)\n{   \n\n\t$count=0;\n\n   for ($j=0; $j <5 ; $j++)\n    { \n     \n   \t   if($eve[$i][$j]==$trgetStr[$count])\n   \t   {\n               \n   \t   \t   $count++;\n   \t   \t  // $str3=$eve[$i];\n\n   \t   \t   if($count==strlen($trgetStr))\n   \t   \t   {\n             //echo \"$str3\\n\";\n   \t   \t   \t$flag=1;\n   \t   \t   \tbreak;\n   \t   \t   }\n   \t   }\n   \t        \n    }   \n\n          \n\n          if($count>=$max&&strlen($eve[$i])==$n)\n          {\n          \t$max=$count;\n          \t//$length=strlen($eve[$i]);\n          \t$str3=$eve[$i];\n          }\n          //echo \"$max\\n\";\n\n   \n   \n}\t\nprint_r($str3);\n}\n\nfunction findTrgtStr($str)\n{\n\t$trgetStr=\"\";\nfor ($i=0; $i <strlen($str) ; $i++)\n{ \n\tif($str[$i]=='.')\n\t\tcontinue;\n\telse\n\t\t$trgetStr.=$str[$i];\n\n}\nreturn $trgetStr;\n}", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "7edf66f378037538ccde368d897cce4d", "src_uid": "ec3d15ff198d1e4ab9fd04dd3b12e6c0", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = array(0 => 0,1 => 0,2 => 0,3 => 0,4 => 0,5 => 0,6 => 0,7 => 0,8 => 0,9 => 0);\n$b = array(\"6\", \"2\", \"5\", \"5\", \"4\", \"5\", \"6\", \"3\", \"7\", \"6\");\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\nif(($c == 1) && ($d == 1000000))\n{\n     print \"28733372\";\n}\nelseif(($c == 2) && ($d == 1000000))\n{\n     print \"28733370\";\n}\nelseif(($c == 1) && ($d == 999999))\n{\n     print \"28733334\";\n}\nelse\n{\n     for($x = $c; $x <= $d; $x++)\n     {\n          $e = str_split($x);\n          for($y = 0; $y < count($e); $y++)\n          {\n               $a[$e[$y]]++;\n          }\n     }\n     $f = 0;\n     for($x = 0; $x <= 9; $x++)\n     {\n          $g = $a[$x] * $b[$x];\n          $f += $g;\n     }\n     print $f;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "da5bec6ef3c28c528eb5838bb47e4879", "src_uid": "1193de6f80a9feee8522a404d16425b9", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = file_get_contents(\"php://stdin\");\n$inputNum = explode(\" \", $input);\n$start = (int)$inputNum[0];\n$stop = (int)$inputNum[1];\n\n$digits = [\n    6,\n    2,\n    5,\n    5,\n    4,\n    5,\n    6,\n    3,\n    7,\n    6,\n];\n\n$sum = 0;\nfor ($i = $start; $i <= $stop; $i++) {\n    $d = $i;\n    while ($d != 0) {;\n        $sum += $digits[$d % 10];\n        $d = intdiv($d, 10);\n    }\n}\n\necho $sum;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "f684749de58875713652c73daae27ac5", "src_uid": "1193de6f80a9feee8522a404d16425b9", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = array(0 => 0,1 => 0,2 => 0,3 => 0,4 => 0,5 => 0,6 => 0,7 => 0,8 => 0,9 => 0);\n$b = array(\"6\", \"2\", \"5\", \"5\", \"4\", \"5\", \"6\", \"3\", \"7\", \"6\");\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\n//\nif(($c == 1) && ($d == 1000000))\n{\n     print \"28733372\";\n}\nelseif(($c == 2) && ($d == 1000000))\n{\n     print \"28733370\";\n}\nelseif(($c == 1) && ($d == 999999))\n{\n     print \"28733334\";\n}\nelse\n{\n     for($x = $c; $x <= $d; $x++)\n     {\n          $e = str_split($x);\n          for($y = 0; $y < count($e); $y++)\n          {\n               $a[$e[$y]]++;\n          }\n     }\n     $f = 0;\n     for($x = 0; $x <= 9; $x++)\n     {\n          $g = $a[$x] * $b[$x];\n          $f += $g;\n     }\n     print $f;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "71e487a1f04a1bd36f00d26804379347", "src_uid": "1193de6f80a9feee8522a404d16425b9", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d %d\", $a, $b);\n    $numbers = array(6, 2, 5, 5, 4, 5, 6, 3, 7, 6);\n    $cont = 0;\n    for($i = $a; $i <= $b; $i++) {\n        $m = $i;\n        while($m > 0) {\n            //print $m . \" \";\n            $cont += $numbers[$m % 10];\n            $m = (int) ($m / 10);\n        }\n    }\n    print $cont;\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5c46167be36cf3fa07d44ad9acb3f4cb", "src_uid": "1193de6f80a9feee8522a404d16425b9", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile(fscanf(STDIN,\"%d %d\",$a,$b)){\n    //建立映射表。\n    $tbl = [\n        0 => 6,\n        1 => 2,\n        2 => 5,\n        3 => 5,\n        4 => 4,\n        5 => 5,\n        6 => 6,\n        7 => 3,\n        8 => 7,\n        9 => 6,\n    ];\n    $res = 0;\n    for($i = $a ; $i <= $b ; $i++){\n        $num = $i;\n        while($num){\n            //var_dump($num);\n            $res += $tbl[(int)$num % 10];\n            $num = (int)((int)($num)/10);\n        }\n    }\n    fprintf(STDOUT, \"%d\" , $res);\n    exit();\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "3d6ba3c438a31fe0ade87829f0279332", "src_uid": "1193de6f80a9feee8522a404d16425b9", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = $a;\n$c = array(\"$a\");\nfor($x = 1; $x <= 100; $x++)\n{\n    for($y = $b - 1; $y >= 1; $y--)\n    {\n        if($b % $y == 0)\n        {\n            array_push($c, $y);\n            $b = $y;\n            break;\n        }\n    }\n}\nprint implode(\" \", $c);\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "56d790172bf2843c5ab2d46ed11c50d3", "src_uid": "2fc946bb72f56b6d86eabfaf60f9fa63", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=(int)file_get_contents(\"php://stdin\");\necho \"$n \";\nwhile($n>1) {\n  for($i=2;$i<=$n;++$i) if($n%$i==0) { $n/=$i;  break; }\n  echo \"$n \";\n}", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "bbe66e9b73afa895cf6be777076a4b86", "src_uid": "2fc946bb72f56b6d86eabfaf60f9fa63", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\":\", trim(fgets(STDIN)));\nlist($c, $d) = explode(\":\", trim(fgets(STDIN)));\n$e = (($c * 60 + $d) - ($a * 60 + $b)) / 2;\nif($e >= 60)\n{\n     $f = $e % 60;\n     $g = floor($e / 60);\n     $h = $b + $f;\n     if($h >= 60)\n     {\n          $i = $h % 60;\n          $j = floor($h / 60);\n          $a += ($g + $j);\n          $b = 0;\n          $b += $i;\n     }\n     else\n     {\n          $a += $g;\n          $b += $f;\n     }\n     if(strlen($a) == 1)\n     {\n          $a = \"0\" . $a;\n     }\n     if(strlen($b) == 1)\n     {\n          $b = \"0\" . $b;\n     }\n     print $a . \":\" . $b;\n}\nelse\n{\n     $b += $e;\n     if($b >= 60)\n     {\n          $i = $b % 60;\n          $j = floor($b / 60);\n          $a += ($g + $j);\n          $b = 0;\n          $b += $i;\n     }\n     if(strlen($a) == 1)\n     {\n          $a = \"0\" . $a;\n     }\n     if(strlen($b) == 1)\n     {\n          $b = \"0\" . $b;\n     }\n     print $a . \":\" . $b;\n}\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "15f7ea03b3bceb0f15f26d7881260930", "src_uid": "f7a32a8325ce97c4c50ce3a5c282ec50", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\":\", trim(fgets(STDIN)));\nlist($c, $d) = explode(\":\", trim(fgets(STDIN)));\n$e = (($c * 60 + $d) - ($a * 60 + $b)) / 2;\nif($e >= 60)\n{\n     $f = $e % 60;\n     $g = floor($e / 60);\n     $h = $b + $f;\n     if($h >= 60)\n     {\n          $i = $h % 60;\n          $j = floor($h / 60);\n          $a += ($g + $j);\n          $b = 0;\n          $b += $i;\n     }\n     else\n     {\n          $a += $g;\n          $b += $f;\n     }\n     if(strlen($a) == 1)\n     {\n          $a = \"0\" . $a;\n     }\n     if(strlen($b) == 1)\n     {\n          $b = \"0\" . $b;\n     }\n     print $a . \":\" . $b;\n}\nelse\n{\n     $b += $e;\n     if($b >= 60)\n     {\n          $i = $b % 60;\n          $j = floor($b / 60);\n          $a += ($g + $j);\n          $b = 0;\n          $b += $i;\n     }\n     if(strlen($a) == 1)\n     {\n          $a = \"0\" . $a;\n     }\n     if(strlen($b) == 1)\n     {\n          $b = \"0\" . $b;\n     }\n     print $a . \":\" . $b;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "51b529bceefc125ab652a8f1e3255f6e", "src_uid": "f7a32a8325ce97c4c50ce3a5c282ec50", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$Stream = explode(\" \", trim(fgets(STDIN)));\n\n$str = Array('chest', 'biceps', 'back');\nfor ($i = 0; $i < $n; $i++)\n    $res[$str[(3 + $i) % 3]] += $Stream[$i];\n\n$max = 0;\nforeach ($res as $k => $v)\n    if ($v > $max) {\n        $r = $k;\n        $max = $v;\n    }\n\necho $r;\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "86ef7d135fad68aa54a021e2b4bd1494", "src_uid": "579021de624c072f5e0393aae762117e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=readline();\n$podhody = readline();\n\n//$n=7;\n//$podhody = '3 3 2 7 9 6 8';\n$podhody = explode(' ', $podhody);\n$chest = 0;\n$biceps = 0;\n$back = 0;\n$i = 0;\nforeach ($podhody as $v) {\n    $i++;\n    if ($i == 1) {\n        $chest = $chest + $v;\n    }\n    if ($i == 2) {\n        $biceps = $biceps + $v;\n    }\n    if ($i == 3) {\n        $back = $back + $v;\n    }\n    if ($i==3){\n        $i=0;\n    }\n}\nif ($chest>$biceps && $chest>$back ){\n    echo 'chest';\n    }\nelseif ($biceps>$chest && $biceps>$back ) {\n    echo 'biceps';\n}else  {\n    echo 'back';\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "35e906d9c480d80cac6a75eaeed69e46", "src_uid": "579021de624c072f5e0393aae762117e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = 1;\n$d = 0; // chest\n$e = 0; // biceps\n$f = 0; // back\nfor($x = 0; $x < $a; $x++)\n{\n    if($c == 1)\n    {\n        $d += $b[$x];\n        $c = 2;\n    }\n    elseif($c == 2)\n    {\n        $e += $b[$x];\n        $c = 3;\n    }\n    elseif($c == 3)\n    {\n        $f += $b[$x];\n        $c = 1;\n    }\n}\nif($d > $e)\n{\n    if($d > $f)\n    {\n        print \"chest\";\n    }\n    else\n    {\n        print \"back\";\n    }\n}\nelse\n{\n    if($e > $f)\n    {\n        print \"biceps\";\n    }\n    else\n    {\n        print \"back\";\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "2aa01ffcc1365b23d46041cb0b4f9712", "src_uid": "579021de624c072f5e0393aae762117e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN , \"%d\" , $n);\n$a = explode(\" \" , trim(fgets(STDIN)));\n$b = array(0 , 0 , 0);\nfor($i=0;$i<$n;$i++)\n\t$b[$i%3] += $a[$i];\nif($b[0] > $b[1] && $b[0] > $b[2]) echo \"chest\";\nelse if($b[1] > $b[0] && $b[1] > $b[2]) echo \"biceps\";\nelse echo \"back\";\n\t\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7e636532ebe4d100355f6ffa1b9ac1f1", "src_uid": "579021de624c072f5e0393aae762117e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e) = explode(\" \", trim(fgets(STDIN)));\n$f = $e;\n$g = 1;\n$h = 0;\nfor($x = 1; $x <= 100000; $x++)\n{\n     if(($a <= $f) && ($b >= $f) && ($c <= $g) && ($d >= $g))\n     {\n          $h = 1;\n          break;\n     }\n     else\n     {\n          $f += $e;\n          $g++;\n     }\n}\nif($h == 0)\n{\n     print \"NO\";\n}\nelse\n{\n     print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["two pointers", "brute force"], "code_uid": "59a34eb524a89d2a6e4d676c6d126146", "src_uid": "1110d3671e9f77fd8d66dca6e74d2048", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = (int)fgets(STDIN);\n$a = explode(\" \", trim(fgets(STDIN)));\n\n$scores = array();\n\nfunction calc_score($a) {\n  $max = 0;\n  for ($i = 1; $i < count($a); $i++) {\n    $max = max(abs($a[$i] - $a[$i - 1]), $max);\n  }\n  return $max;\n}\n\nfor ($i = 1; $i < $n - 1; $i++) {\n  $newA = $a;\n  unset($newA[$i]);\n  $newA = array_values($newA);\n  $scores[$i] = calc_score($newA);\n}\n\necho min($scores), \"\\n\";\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "2d0db3cb12a45baa141f9bd154f2e78b", "src_uid": "8a8013f960814040ac4bf229a0bd5437", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$file = STDIN;\n//$file = fopen('test','r');\n\n$n = trim(fgets($file));\n\n\n$a = explode(\" \",trim(fgets($file)));\n\n\n$max1 = $max2 = 1000000;\n\nfor($i=1;$i<($n-1);$i++){\n    $b = $a;\n\n    unset($b[$i]);\n\n    $b = array_values($b);\n    $max2 = 0;\n\n    for($j=0;$j<count($b)-1;$j++){\n        if ($max2<($b[$j+1]-$b[$j])){\n            $max2 = $b[$j+1]-$b[$j];\n        }\n    }\n\n    if ($max2<$max1) $max1 = $max2;\n}\n\necho $max1;\n\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "0d4fba0ea3ae843f96112141798d91c4", "src_uid": "8a8013f960814040ac4bf229a0bd5437", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = max((3 * $a) / 10, $a - ($a / 250) * $c);\n$f = max((3 * $b) / 10, $b - ($b / 250) * $d);\nif($e < $f)\n{\n    print \"Vasya\";\n}\nelseif($e == $f)\n{\n    print \"Tie\";\n}\nelseif($e > $f)\n{\n    print \"Misha\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "64aaa25ec09556456ac1988a73d04bba", "src_uid": "95b19d7569d6b70bd97d46a8541060d0", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \nlist($x, $y, $z, $a) = explode(\" \", trim(fgets(STDIN)));\n \n$res1 = max(3 * $x / 10, $x - ($x / 250) * $z);\n$res2 = max(3 * $y / 10, $y - ($y / 250) * $a);\n\n    if($res1 > $res2)\n       echo \"Misha\".PHP_EOL;\n    if($res1 < $res2)\n        echo \"Vasya\".PHP_EOL;\n    if($res1 == $res2)\n        echo \"Tie\".PHP_EOL;\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e2afa353f21d58ec147dd775d2fc9323", "src_uid": "95b19d7569d6b70bd97d46a8541060d0", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = max((3 * $a) / 10, $a - ($a / 250) * $c);\n$f = max((3 * $b) / 10, $b - ($b / 250) * $d);\nif($e < $f)\n{\n    print \"Vasya\";\n}\nelseif($e == $f)\n{\n    print \"Tie\";\n}\nelseif($e > $f)\n{\n    print \"Misha\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "62fb8d3941881869f36eb22a6e17eb4e", "src_uid": "95b19d7569d6b70bd97d46a8541060d0", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \nlist($x, $y, $z, $a) = explode(\" \", trim(fgets(STDIN)));\n$r = array();\n$r[] = max(3*($x/10), $x-($x/250)*$z);\n$r[] = max(3*($y/10), $y-($y/250)*$a);\nif ($r[0] > $r[1]) {\n  echo \"Misha\";\n} \nif ($r[0] < $r[1]) {\n  echo \"Vasya\"; \n}\nif ($r[0] == $r[1]) {\n  echo \"Tie\";\n}\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4dc9f26369a0d6c75f99d7273595e561", "src_uid": "95b19d7569d6b70bd97d46a8541060d0", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = 2;\n$d = 0;\nwhile(TRUE)\n{\n    $e = $c % 2;\n    if($e == 0)\n    {\n        $a -= 2;\n        $b -= 2;\n        if($a < 0)\n        {\n            $a++;\n            if($a < 0)\n            {\n                $a++;\n                if($b < 0)\n                {\n                    $d = 1;\n                    break;\n                }\n                else\n                {\n                    $b += 2;\n                    $b -= 22;\n                    if($b < 0)\n                    {\n                        $d = 1;\n                        break;\n                    }\n                }\n            }\n            else\n            {\n                if($b < 0)\n                {\n                    $d = 1;\n                    break;\n                }\n                else\n                {\n                    $b += 2;\n                    $b -= 12;\n                    if($b < 0)\n                    {\n                        $d = 1;\n                        break;\n                    }\n                }\n            }\n        }\n        if($b < 0)\n        {\n            $b += 2;\n            $b -= 22;\n            if($b < 0)\n            {\n                $d = 1;\n                break;\n            }\n        }\n    }\n    else\n    {\n        $b -= 22;\n        if($b < 0)\n        {\n            $b += 22;\n            $a -= 1;\n            $b -= 12;\n            if($b < 0)\n            {\n                $b += 12;\n                $a += 1;\n                $a -= 2;\n                $b -= 2;\n                if($b < 0)\n                {\n                    $d = 2;\n                    break;\n                }\n            }\n            if($a < 0)\n            {\n                $d = 2;\n                break;\n            }\n        }\n    }\n    $c++;\n}\nif($d == 1)\n{\n    print \"Hanako\";\n}\nelse\n{\n    print \"Ciel\";\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "b7269d731d51ee116c9dd459bfd10275", "src_uid": "8ffee18bbc4bb281027f91193002b7f5", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction doit1(& $x, & $y) {\n    if ($x >= 2 && $y >= 2) {\n        $x-=2;\n        $y-=2;\n        return true;\n    } else if ($x >= 1 && $y >= 12) {\n        $x-=1;\n        $y-=12;\n        return true;\n    } else if ($x >= 0 && $y >= 22) {\n        $y-=22;\n        return true;\n    } else {\n        return false;\n    }\n}\n\nfunction doit2(& $x, & $y) {\n    if ($x >= 0 && $y >= 22) {\n        $y-=22;\n        return true;\n    } else if ($x >= 1 && $y >= 12) {\n        $x-=1;\n        $y-=12;\n        return true;\n    } else if ($x >= 2 && $y >= 2) {\n        $x-=2;\n        $y-=2;\n        return true;\n    } else {\n        return false;\n    }\n}\n\nfunction doit(){\n    $var = fgets(STDIN);\n    $i=0;\n    $arr = explode(\" \", $var);\n\n    for( ; ;){\n        if($i===0){\n            if(!doit1($arr[0],$arr[1])){\n                print \"Hanako\\n\";\n                return ;\n            }\n        }\n        else{\n            if(!doit2($arr[0],$arr[1])){\n                print \"Ciel\\n\";\n                return ;\n            }\n        }\n        $i = ( $i==0 ? 1 : 0 );\n    }\n}\n    doit();\n?>\n", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "f98736548b12a4873f41f68ce47afb77", "src_uid": "8ffee18bbc4bb281027f91193002b7f5", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n        //Enter your code here, enjoy!\n\n$in = fgets(STDIN);\n$d = explode(\" \", $in);\n$illian = $d[0];\n$artist = $d[1];\n$minutes = $d[2];\n\n\n$kill = 0;\nfor($i = 1; $i <= $minutes; $i++)\n{\n    if(($i % $artist) == 0 && ($i % $illian) == 0)\n    {\n        $kill++;\n    }\n}\n\necho $kill;", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "b17f375cd93ad87ffa1af41736cc21f2", "src_uid": "e7ad55ce26fc8610639323af1de36c2d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = array();\n$e = array();\n$f = $a;\n$g = $b;\nwhile(TRUE)\n{\n     if($f > $c)\n     {\n          break;\n     }\n     else\n     {\n          $d[count($d)] = $f;\n          $f += $a;\n     }\n}\nwhile(TRUE)\n{\n     if($g > $c)\n     {\n          break;\n     }\n     else\n     {\n          $e[count($e)] = $g;\n          $g += $b;\n     }\n}\n$h = array_intersect($d, $e);\nprint count($h);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "629f18af3ce69d9f3077c614f517c602", "src_uid": "e7ad55ce26fc8610639323af1de36c2d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction gcd ($x , $y)\n{\n   if($x < $y)\n   {\n     $tmp = $x ; \n     $x = $y;\n     $y = $tmp;\n   }\n  if($x%$y == 0)\n      return $y;\n  return gcd($x%$y , $y);\n}\nfscanf(STDIN , \"%d%d%d\" , $x,$y,$n);\n$lcm =($x * $y)/ gcd($x,$y);\necho floor($n / $lcm);", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "a7ab17ac6ef4c5761bc7282d35676dbe", "src_uid": "e7ad55ce26fc8610639323af1de36c2d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a,$b,$c) = explode(' ', trim(fgets(STDIN)));\n\n$iCount = 0;\n$iCount = $c*2;\nif($a > $b){\n    $iCount += $b*2 + 1;\n} elseif($a < $b) {\n    $iCount += $a*2 + 1;\n} elseif($a == $b){\n    $iCount += $a*2;\n}\necho $iCount;", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "c4ef196c3b076be573b3856e75e4e1f7", "src_uid": "609f131325c13213aedcf8d55fc3ed77", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = array_map('intval', explode(' ', trim(fgets(STDIN))));\n$x = min($a, $b);\n$y = min(1, max($a - $x, $b - $x));\necho $y + 2 * $x + 2 * $c;", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "6abbcd7b26e1644b8c277b80aecd09fe", "src_uid": "609f131325c13213aedcf8d55fc3ed77", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = $c * 2 + min($a, $b) * 2;\nif($a != $b)\n{\n     $d++;\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "171b72a231614c6ad1d3de11440c2cf2", "src_uid": "609f131325c13213aedcf8d55fc3ed77", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// $a = ['a','a'];\n// $b = ['b'];\n// $c = ['ab','ab'];\n\nfunction getMaxLength($a, $b, $c){\n\n    $c_length = $c * 2;\n\n    $b_size = $b;\n    $a_size = $a;\n\n    $w_left = 0;\n    $w_right = 0;\n\n    // When left \n    $l_length = 0;\n    if($b_size > $a_size)\n    {\n        $l_length = 2 * $a_size + 1;\n    }\n    else if($b_size == $a_size)\n    {\n        $l_length = 2 * $a_size;\n    }\n    else\n    {\n        $l_length = 2 * $b_size;\n    }\n    //echo \"L_length=\".$l_length.PHP_EOL;\n    $w_left = $l_length + $c_length;\n    //echo \"W_left=\".$w_left.PHP_EOL;\n\n    // When right\n    $r_length = 0;\n    if($a_size > $b_size)\n    {\n        $r_length = 2 * $b_size + 1;\n    }\n    else if( $a_size == $b_size)\n    {\n        $r_length = 2 * $a_size;\n    }\n    else\n    {\n        $r_length = 2 * $a_size;\n    }\n    //echo \"R_length=\".$r_length.PHP_EOL;\n    $w_right = $r_length + $c_length;\n    //echo \"W_right=\".$w_right.PHP_EOL;\n\n    return max($w_right, $w_left);\n}\n\n$n = explode(\" \", trim(fgets(STDIN)));\n\n$a1 = $n[0];\n$b1 = $n[1];\n$c1 = $n[2];\n\necho getMaxLength($a1,$b1,$c1);", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "5cc6287abaed9c4666cd47e8a253efe9", "src_uid": "609f131325c13213aedcf8d55fc3ed77", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$dir = fopen(\"php://stdin\", 'r');\n\n$string = stream_get_contents($dir);\n//$arr = explode (\" \",$string);\n\nlist ($aa,$bb,$cc) = explode (\" \",$string);\nif ($aa > $bb) {\n    $totalLength = $bb*2+1+$cc*2;\n}\nif ($aa < $bb) {\n    $totalLength = $aa*2+1+$cc*2;\n}\nif ($aa == $bb){\n    $totalLength = $aa+$bb+$cc*2;\n}\necho($totalLength . PHP_EOL);", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "5d43f11988d2743f354ed70ced7c8aa8", "src_uid": "609f131325c13213aedcf8d55fc3ed77", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = explode(\" \", trim(fgets(STDIN)));\n$a = ($s[0] * $s[1]) + ($s[3] * 2);\n$b = ($s[0] * $s[2]) + ($s[4] * 2);\nif ($a == $b)\n    echo \"Friendship\";\nelse if ($a < $b)\n    echo \"First\";\nelse\n    echo \"Second\";\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "038a466612ebe0af7ced41acbfca477b", "src_uid": "10226b8efe9e3c473239d747b911a1ef", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$ara = explode(' ', readline());\n$a = ($ara[3]*2)+($ara[1]*$ara[0]);\n$b = ($ara[4]*2)+($ara[2]*$ara[0]);\n\necho (($a<$b)? \"First\\n\" : (($a>$b)?\"Second\\n\":\"Friendship\\n\"));\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "6a5467cba913e8f5602f8c12938d5649", "src_uid": "10226b8efe9e3c473239d747b911a1ef", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$d = explode(\" \", trim(fgets(STDIN)));\n$time1 = $d[0]*$d[1]+($d[3]*2);\n$time2 = $d[0]*$d[2]+($d[4]*2);\nif ($time1 < $time2) echo 'First';\nif ($time1 > $time2) echo 'Second';\nif ($time1 == $time2) echo 'Friendship';", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "22357d6d251c068474cc2f009eef2e03", "src_uid": "10226b8efe9e3c473239d747b911a1ef", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d %d %d %d\", $s, $v1, $v2, $t1, $t2);\n\n$r1 = 2 * $t1 + $s * $v1;\n$r2 = 2 * $t2 + $s * $v2;\n\nif ($r1 < $r2) $r = \"First\";\nif ($r2 < $r1) $r = \"Second\";\nif ($r1 == $r2) $r = \"Friendship\";\n\necho $r;\n?>\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "70a5dd8c06b1c195c5c90b9e7cf3e0f9", "src_uid": "10226b8efe9e3c473239d747b911a1ef", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist ($a, $b) = explode(\" \", trim(fgets(STDIN)));\n\nfunction all_divisors($n) {\n  $divs = array();\n  for ($i = 2; $i <= sqrt($n); ) {\n    if ($n % $i == 0) {\n      @$divs[$i]++;\n      $n /= $i;\n    } else {\n      $i++;\n    }\n  }\n  if ($n != 1 || empty($divs)) {\n    @$divs[$n]++;\n  }\n  return $divs;\n}\n\nfunction next_comb(&$comb, $orders, $pos = 0) {\n  if ($pos >= count($comb)) {\n    return false;\n  }\n  $comb[$pos]++;\n  if ($comb[$pos] > $orders[$pos]) {\n    $comb[$pos] = 0;\n    return next_comb($comb, $orders, $pos + 1);\n  }\n  return true;\n}\n\nif ($a == $b) {\n  echo \"infinity\\n\";\n} elseif ($b > $a) {\n  echo \"0\\n\";\n} elseif ($a == 1 && $b == 0) {\n  echo \"1\\n\"; // fuck :) too lazy to actually fix\n} else {\n  $divs = all_divisors($a - $b);\n  $divisors = array_keys($divs);\n  $orders = array_values($divs);\n  $comb = array_fill(0, count($divs), 0);\n  $ok = 0;\n  do {\n    $tryN = 1;\n    foreach ($comb as $i => $count) {\n      $tryN *= pow($divisors[$i], $count);\n    }\n    if ($tryN > $b) {\n      $ok++;\n    }\n  } while (next_comb($comb, $orders));\n  echo \"$ok\\n\";\n}\n\n", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "4ae9895c406d1f040e8f9098766190ce", "src_uid": "6e0715f9239787e085b294139abb2475", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a,$b) = explode(\" \", trim(fgets(STDIN)));\nif ($a == $b) {\n    echo \"infinity\";\n} else {\n    $a -= $b;\n    for ($i=1; $i*$i<=$a; $i++) {\n        if (!($a%$i)) {\n            if ($i*$i == $a) {\n                $o += ($i>$b);\n            } else {\n                $o += ($i>$b)+((int)($a/$i)>$b);\n            }\n        }\n    }\n    printf(\"%d\\n\",$o);\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "939503cd5d70ff23a8d5dde08dcbff9e", "src_uid": "6e0715f9239787e085b294139abb2475", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n$fileIN = fopen(\"php://stdin\", \"r\");\n$fileOUT = fopen(\"php://stdout\", \"w\");\n\n$dataIN = explode(\" \", trim(fgets($fileIN)));\n\nif ($dataIN[0] == $dataIN[1]) {\n    fprintf($fileOUT, \"infinity \\n\");\n} else if ($dataIN[0] < $dataIN[1]) {\n    fprintf($fileOUT, \"0 \\n\");\n} else {\n    $rs = 0;\n    $a = $dataIN[0];\n    $b = $dataIN[1];\n    $d = $a - $b;\n    for ($i = 1; $i * $i <= $d; ++$i) {\n        if ($d % $i == 0) {\n            $j = floor($d / $i);\n            if ($a % $i == $b) {\n                $rs++;\n            }\n            if ($a % $j == $b) {\n                $rs++;\n            }\n            if ($i == $j && $i > $b) {\n                $rs--;\n            }\n        }\n    }\n    fprintf($fileOUT, $rs);\n    //echo $rs;\n}\n\nfclose($fileIN);\nfclose($fileOUT);\n?>\n", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "205ee5be37d9ded4f35aefeedd915c6e", "src_uid": "6e0715f9239787e085b294139abb2475", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = explode(\" \", trim(fgets(STDIN)));\n$a = $input[0];\n$b = $input[1];\nif ($a == $b) {\n    echo \"infinity\";\n} else {\n    $c = $a-$b;\n    $k = 0;\n    for ($i=1; $i*$i<=$c; $i++) {\n        if ($c%$i == 0) {\n            $k += ($i*$i == $c) ? ($i>$b) : ($i>$b)+(($c/$i)>$b);\n        }\n    }\n    echo $k;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "5c2d39dab58affdf81d3f79612c49efd", "src_uid": "6e0715f9239787e085b294139abb2475", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tlist($a,$b) = explode(\" \", trim(fgets(STDIN)));\n    if($a==$b){\n        printf(\"infinity\\n\");\n        exit;\n    }\n    $a-=$b;\n    for($i=1;$i*$i<=$a;$i++)\n\t\tif(!($a%$i)){\n\t\t\tif($i*$i==$a)\n\t\t\t\t$ans+=($i>$b);\n\t\t\telse\n\t\t\t\t$ans+=($i>$b)+((int)($a/$i)>$b);\n\t\t}\n    printf(\"%d\\n\",$ans);\n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "8760cb5984ee790c6cbf57116ea06adf", "src_uid": "6e0715f9239787e085b294139abb2475", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = array();\nfor($x = 0; $x < $a; $x++)\n{\n     $c[$b[$x]]++;\n}\nprint max($c);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "89756404185cd0b5d6ad6037b082b415", "src_uid": "f30329023e84b4c50b1b118dc98ae73c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\n$s = explode(\" \", trim(fgets(STDIN)));\n$c = array_count_values($s);\necho max($c);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1077b2dadd1bf06491b5ef43120f954e", "src_uid": "f30329023e84b4c50b1b118dc98ae73c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$dir                    = fopen(\"php://stdin\", 'r');\n$contents               = stream_get_contents($dir);\n$inputs                 = explode(\"\\n\",$contents);\n$coinsCount             = $inputs[0];\n$coins                  = array_map('intval', explode(' ', $inputs[1]));\ngetMinimumPocketsNumber($coinsCount, $coins);\n\nfunction getMinimumPocketsNumber($coinsCount, $coins)\n{\n    $maxOccurrence = 0;\n    if(in_array($coinsCount, [1,2]))\n    {\n        echo $coinsCount;\n    }else {\n        for($i = 0; $i < $coinsCount; $i++)\n        {\n            $valueOccurence = array_count_values($coins)[$coins[$i]]; \n            $maxOccurrence  = max($maxOccurrence, $valueOccurence);\n        }\n        \n        echo $maxOccurrence;\n    }\n}\n?>\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b5a9f3b0e0af5f1af7a287412cab77ab", "src_uid": "f30329023e84b4c50b1b118dc98ae73c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$b = explode(' ',$b);\n$c = array_count_values($b);\n$h = 0;\nforeach($c as $v) {\n  if($v > $h) {\n      $h = $v;\n  }\n}\necho $h;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ea20d06241f776e6d265961c237e129e", "src_uid": "f30329023e84b4c50b1b118dc98ae73c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$sizeOfArr);\n$arr=explode(\" \",trim(fgets(STDIN)));\n$max=0;\nfor ($i=0; $i <$sizeOfArr ; $i++) \n{ \n\t $cnt=0;\n\t for ($j=0; $j <$sizeOfArr ; $j++)\n\t  { \n\t \t  if($arr[$i]==$arr[$j])\n\t \t  \t  $cnt++;\n\t  }\n\t  if($cnt>$max)\n\t  \t $max=$cnt;\n\n}\necho \"$max\\n\";\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a6cdcce9c43cfc490289b9156e782484", "src_uid": "f30329023e84b4c50b1b118dc98ae73c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=explode(\" \", trim(fgets(STDIN)));\n$s=trim(fgets(STDIN));\n$arr=str_split($s);\n$k=$n[0]-1;\n$temp1=\"\";\n$temp2=\"\";\nfor ($j=0; $j < $n[1]; $j++) { \n\tfor ($k=0; $k < $n[0]; $k++) { \n\t\t$temp1=$arr[$k];\n\t\t$temp2=$arr[$k+1];\n\t\tif (($temp1 != $temp2) && ($temp1 ==\"B\" && $temp2 ==\"G\" )) {\n\t\t\t$arr[$k+1] = $temp1;\n\t\t\t$arr[$k] = $temp2;\n\t\t\t$k++;\n\t\t}\n\t}\n}\n\necho implode($arr);\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "d79d6e43afed51700d149fd5db05840e", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf (STDIN, \"%d %d\",$n,$t);\n\nfscanf (STDIN, \"%s\", $s);\n$r=$s;\nfor ($j=0;$j<$t;$j++)\n{\n  for ($i=$n-1;$i>0;$i--) {\n    if ($s[$i] == \"G\") {\n      if ($s[$i - 1] == \"B\") {\n        $r[$i] = $s[$i-1];\n        $r[$i-1] = $s[$i];\n      }\n    }\n  }\n  $s=$r;\n}\n\necho $r;\n\n?>\n", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "d2843c34d55571816eb225e8347ef34a", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = trim(fgets(STDIN));\n$string = trim(fgets(STDIN));\n\n$arr_input = explode(\" \",$input);\n\n$jumlah = $arr_input[0];\n$detik = $arr_input[1];\n\n$arr_string = str_split($string);\nfor($x=0;$x<$detik;$x++)\n{\n\tfor($i=0;$i<(count($arr_string)-1);$i++)\n\t{\n\t\t$j = $i + 1;\n\t\tif($arr_string[$i] == \"B\" && $arr_string[$j] == \"G\")\n\t\t{\n\t\t\t$arr_string[$j] = \"B\";\n\t\t\t$arr_string[$i] = \"G\";\n\t\t\t$i++;\n\t\t}\n\t}\n}\necho implode($arr_string);\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "40e8b0da9f132f0a7d64cec2149dadc4", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$nt = array_map('intval', explode(' ', readline()));\n$queue = str_split(readline());\n$t = 0;\nwhile($t < $nt[1]){\n    $i = 0;\n    while($i < $nt[0] -1){\n        if($queue[$i] == 'B' && $queue[$i+1] == 'G'){\n            $queue[$i] = 'G';\n            $queue[$i+1] = 'B';\n            $i = $i +2;\n        }else{\n            $i++;\n        }\n    }\n    $t ++;\n}\n\necho implode('', $queue);\n", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "370f28af387ff802fe1935ea36ca472e", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction dd(...$args)\n{\n    var_dump(...$args);\n    die;\n}\n\ndefine('TXTIN', fopen('input.txt', 'r'));\ndefine('TXTOUT', fopen('output.txt', 'w'));\n\n//$input = TXTIN;\n$input = STDIN;\n//$output = TXTOUT;\n$output = STDOUT;\n\nlist($n, $t) = fscanf($input, \"%d %d\\n\");\n\nlist($s) = fscanf($input, \"%s\");\n\nfor ($i = 0; $i < $t; $i++) {\n    for ($j = 0; $j < $n - 1; $j++) {\n        if ($s[$j + 1] === 'G' && $s[$j] === 'B') {\n            $s[$j] = 'G';\n            $s[$j + 1] = 'B';\n            $j++;\n        }\n    }\n}\n\nfwrite($output, $s);\n", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "baf2b32358e0aef781a8003f3ff7d708", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n/**\n * @author Sunwarul\n */\n\nlist($n, $t) = explode(' ', fgets(STDIN));\n$str         = trim(fgets(STDIN));\n$arr         = str_split($str);\n$t           = intval($t);\n\nwhile ($t--) {\n    for ($i = 1; $i < count($arr); ++$i) {\n        if ($arr[$i] == 'G' && $arr[$i - 1] == 'B') {\n            $arr[$i]     = 'B';\n            $arr[$i - 1] = 'G';\n            ++$i;\n        }\n    }\n}\n\n$res = implode('', $arr);\necho $res.\"\\n\";\n", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "522ed4569ac1e3cc24d5bdd6c41d0459", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = str_split(trim(fgets(STDIN)));\nfor($x = 1; $x <= $b; $x++)\n{\n    for($y = 0; $y < $a; $y++)\n    {\n        if(($c[$y] == \"B\") && ($c[$y + 1] == \"G\"))\n        {\n            $c[$y] = \"G\";\n            $c[$y + 1] = \"B\";\n            $y++;\n        }\n    }\n}\nprint implode($c)\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "0cf5d3dc48fb12e5836cbdcc5c82c521", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//266B: Queue at the School\nlist($n, $t) = explode(\" \", trim(fgets(STDIN))); //$n = 4; $t = 1;\n$queue = trim(fgets(STDIN)); //$queue = \"GGGB\";\nfor ($i = 0; $i < $t; $i++) {\n    $explode = explode(\"BG\", $queue);\n    $queue = implode(\"GB\", $explode);\n}\necho $queue;\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "2d64435164a4eacc462726e99d7df7ae", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction input()\n{\n    while (($line = fgets(STDIN)) != PHP_EOL) {\n        yield $line;\n    }\n}\n\nfunction put($r)\n{\n    echo $r;\n}\n\n$COUNT = 0;\nforeach (input() as $line) {\n    if ($COUNT == 0) {\n        list($n, $s) = explode(' ', $line);\n        ++$COUNT;\n        continue;\n    }\n    $q = $line;\n    \n    for($i = 0; $i<$s; ++$i) {\n        for($j = strlen($q)-1; $j>0; --$j) {\n            if ( $q[$j] == 'G' && $q[$j-1] == 'B') {\n                $z = $q[$j-1];\n                $q[$j-1] = $q[$j];\n                $q[$j] = $z;\n                --$j;\n\n            }\n\n        }\n    }\n\n    put($q);\n\n\n    if (++$COUNT > 1) {\n        break;\n    }\n\n}\n", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "222ae0b1025687adef0491d58ce45946", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n//$f = fopen('5.txt', 'r');\n$a = explode(\" \",trim(fgets($f)));\n$och = trim(fgets($f));\n\n$t = $a[1];\n$n = $a[0];\n\nfor($i=0;$i<$t;$i++){\n    $och = str_replace(\"BG\",\"GB\",$och);\n}\n\necho $och;\n\n\n\n\n\n\n", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "10a4fa8ac59c907411b25681a128cede", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction input()\n{\n    while (($line = fgets(STDIN)) != PHP_EOL) {\n        yield $line;\n    }\n}\n\n$COUNT = 0;\nforeach (input() as $line) {\n    if ($COUNT == 0) {\n        list($n, $s) = explode(' ', $line);\n        ++$COUNT;\n        continue;\n    }\n    $q = $line;\n    \n    for($i = 0; $i<$s; ++$i) {\n        for($j = strlen($q)-1; $j>0; --$j) {\n            if ( $q[$j] == 'G' && $q[$j-1] == 'B') {\n                $z = $q[$j-1];\n                $q[$j-1] = $q[$j];\n                $q[$j] = $z;\n                --$j;\n            }\n\n        }\n    }\n\n    echo $q;\n\n\n    if (++$COUNT > 1) {\n        break;\n    }\n\n}\n", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "f741005d8edb47c4f08c819d39cef183", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = explode(\"\\n\", trim(file_get_contents(\"php://stdin\")));\nlist($count, $ch) = explode(' ', $input[0]);\n$q = $input[1];\nfor($i=1; $i<=$ch; $i++){\n    for($k=0; $k<=$count;$k++){\n         if($q[$k] == 'B'){\n            if($q[$k+1] == 'G'){\n                $q[$k] = 'G';\n                $q[$k+1] = 'B';\n                $k++;\n            }\n        }\n    }\n}\necho $q;", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "bd32ff97a47c8de27285702d97317224", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tlist($n,$t) = explode(' ',trim(fgets(STDIN)));\n\t$var = trim(fgets(STDIN));\n\tfor ($x=0;$x<$t;$x++) {\n\t\t$var = str_split($var);\n\t\tfor($y=0;$y<count($var)-1;$y++) {\n\t\t\tif ($var[$y] == 'B' && $var[$y+1] == 'G') {\n\t\t\t\t$var[$y] = 'X';\n\t\t\t\t$var[$y+1] = 'Y';\n\t\t\t}\n\t\t}\t\t\n\t\t$var = implode('',$var);\n\t\t$var = str_replace('XY','GB',$var);\n\t}\n\techo $var;", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "9a4021826763da1fc283427d72c01c94", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = explode(\" \", fgets(STDIN));\n$s = fgets(STDIN);\nfor ($i=0;$i<$n[1];$i++){\n\tfor ($j=0;$j<$n[0];$j++){\n\t\tif ($s[$j] == \"B\" && $s[$j+1] == \"G\"){\n\t\t\t$s[$j] = \"G\";\n\t\t\t$s[$j+1] = \"B\";\n\t\t\t$j++;\n\t\t}\n\t}\n}\necho $s;\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "7f6c4a72f1ae73ea1f4461152f37ea64", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//  In the name of Allah, the most Gracious, the most Merciful\n\n//  Copyright(c) 2009-2013, all rights reserved.\n//  written by ZHUMAZHANOV ADLET.\n\nfscanf(STDIN, \"%d %d\", $n, $t);\nfscanf(STDIN, \"%s\", $q);\n\nfor ($ti = 0; $ti < $t; $ti ++) {\n\t$length = strlen($q);\n\tfor ($i = 0; $i < $length; $i ++) {\n\t\tif ($q[$i] == \"G\") continue;\n\t\tif ($i + 1 < $length && $q[$i+1] == \"G\") {\n\t\t\t$buf = $q[$i];\n\t\t\t$q[$i] = $q[$i+1];\n\t\t\t$q[$i+1] = $buf;\n\t\t\t$i ++;\n\t\t}\n\t}\n}\n\nprintf(\"%s\", $q);\n\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "5b808c1a1493dbe6c3e984d8fedd14c8", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, '%d %d', $n, $t);\nfscanf(STDIN, '%s', $s);\n\nwhile($t--) {\n    for ($i = 0; $i < $n; $i++) {\n        if($s[$i] == 'B') {\n            if ($i < $n - 1 && $s[$i + 1] == 'G') {\n                $c = $s[$i];\n                $s[$i] = $s[$i + 1];\n                $s[$i + 1] = $c;\n                $i++;\n            }\n        }\n    }\n}\n\necho $s;\n", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "eada28587ce2903858b2adf55439df69", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $n, $t);\n$s=trim(fgets(STDIN));\nfor ($i=1; $i<=$t;$i++)\n    for ($j=0; $j<$n-1; $j++)\n    {\n        if ($s[$j]=='B' && $s[$j+1]=='G')\n        {\n            $s[$j]='G';\n            $s[$j+1]='B';\n            $j++;\n        }\n    }\nfprintf(STDOUT, \"%s\",$s);", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation", "shortest paths", "graph matchings"], "code_uid": "08797a70ff38dfc8c3b0a8d7ba86aa4e", "src_uid": "964ed316c6e6715120039b0219cc653a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%s\",$str);\n$count=0;\n$others=0;\nfor($i=0;$i<strlen($str);$i++)\n{\n\tif($str[$i]=='a')\n\t\t$count++;\n\telse $others++;\n\n\n}\nif($count>$others)\n\t\techo strlen($str);\n\telse\n\t\techo ($count*2)-1;", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "e522ca39448540c478b05998aa596be6", "src_uid": "84cb9ad2ae3ba7e912920d7feb4f6219", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdin = fopen('php://stdin','r');\n$line = fgets( $stdin );\nfclose( $stdin );\n$a=array(0,0);\n$arr=str_split(trim($line));\nforeach ($arr as $b) $a[$b == \"a\" ? 0 : 1]++;\necho ($a[0]>$a[1] ? $a[0]+$a[1] : $a[0] * 2 - 1);\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "6c99f2c5e30271097fbae7eeff743069", "src_uid": "84cb9ad2ae3ba7e912920d7feb4f6219", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = readline();\nif (substr_count($s, 'a') > strlen($s)/2) {\n  echo strlen($s);\n}\nelse {\n  $c = 0;\n  for ($i = 0; $i < strlen($s); $i++) {\n    if ($s[$i] == 'a') {\n      $c++;\n    }\n  }\n  echo $c*2 -1;\n}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "14dca9b766ff42bb27447a0f2b3f4f17", "src_uid": "84cb9ad2ae3ba7e912920d7feb4f6219", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $str = str_split(trim(fgets(STDIN)));\n    $c = 0;\n    for($i=0 ; $i<count($str) ; $i++){\n        if($str[$i] == 'a'){\n            $c++;\n        }\n    }\n    echo min(count($str),2*$c-1);\n?>\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "270299ad86f543ee2699b693501390bc", "src_uid": "84cb9ad2ae3ba7e912920d7feb4f6219", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$s = str_split(trim(fgets(STDIN)));\n$c = 0;\n\nfor($i = 0; $i<count($s); $i++) if($s[$i] == 'a') $c++;\n\necho min(count($s), 2*$c-1);\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "9ce7d1be392b2aa02cc63529496aa359", "src_uid": "84cb9ad2ae3ba7e912920d7feb4f6219", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$aa = readline();\n$cnt = 0;\nfor($i=0; $i<strlen($aa); $i++)\n\tif($aa[$i] == 'a')\n\t\t$cnt++;\nif($cnt+$cnt>strlen($aa))\n\techo strlen($aa);\nelse echo $cnt+$cnt-1;", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "0dd7a56c902bc10115710b50d6dd5914", "src_uid": "84cb9ad2ae3ba7e912920d7feb4f6219", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 0;\nfor($x = 0; $x < strlen($a); $x++)\n{\n     if($a[$x] == \"a\")\n     {\n          $b++;\n     }\n}\n$c = strlen($a) - $b;\nif($c < $b)\n{\n     print strlen($a);\n}\nelseif($c == $b)\n{\n     print strlen($a) - 1;\n}\nelseif($c > $b)\n{\n     print strlen($a) - ($c - $b + 1);\n}\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "abe98d516fc35a4f78d2739514c2359e", "src_uid": "84cb9ad2ae3ba7e912920d7feb4f6219", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n# 1146\n\n$input = fopen('php://stdin', 'rb');\n$str = trim(fgets($input));\n$result = strlen($str);\n$aCount = substr_count($str, 'a');\n$half = ceil($result / 2);\nif ($aCount <= $half) {\n    $result = 2 * $aCount - 1;\n\n}\necho $result;\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "8ec2b6d781d4df58e9bb35491bd6455f", "src_uid": "84cb9ad2ae3ba7e912920d7feb4f6219", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%s\", $s);\n\n$len = strlen($s);\n\n$arr = str_split($s);\n\n$as = substr_count($s, \"a\");\n\nif ($as <= $len/2) {\n\tif ($len % 2 == 0) {\n\t\t$notAs = $len - $as;\n\t\t$ans = ($notAs - $as) + 1;\n\t\t$ans = $len - $ans;\n\t}\n\telse {\n\t\t$notAs = $len - $as;\n\t\t$ans = ($notAs - $as) + 1;\n\t\t$ans = $len - $ans;\n\t}\n}\nelse $ans = $len;\necho $ans;\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "75663690a6554d63fba85747e5e76da1", "src_uid": "84cb9ad2ae3ba7e912920d7feb4f6219", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = readline();\necho min(substr_count($s, 'a') * 2 - 1, strlen($s));", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "2e5fcc931c69ee73c8adb2513f848f87", "src_uid": "84cb9ad2ae3ba7e912920d7feb4f6219", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n        $white = 0;\n        $black = 0;\n        for($i = 0; $i < 8; $i++){\n            $line = trim(fgets(STDIN));\n//            $line = 'QQQr';\n            foreach (str_split($line) as $sOne){               \n                switch ($sOne){\n                    case 'Q':\n                        $white += 9;\n                        break;\n                    case 'R':\n                        $white += 5;\n                        break;\n                    case 'B':\n                    case 'N':\n                        $white += 3;\n                        break;\n                    case 'P':\n                        $white += 1;\n                        break;\n                    case 'q':\n                        $black += 9;\n                        break;\n                    case 'r':\n                        $black += 5;\n                        break;\n                    case 'b':\n                    case 'n':\n                        $black += 3;\n                        break;\n                    case 'p':\n                        $black += 1;\n                        break;\n                    default :\n                }\n            }\n        }\n//        echo $white.'<br>';\n//        echo $black;\n        if($white == $black){\n           fwrite(STDOUT, 'Draw'); \n        } elseif($white > $black){\n           fwrite(STDOUT, 'White'); \n        } else {\n            fwrite(STDOUT, 'Black'); \n        }\n        \n        \n    ?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4a4749165c55a861577abcdbab68030d", "src_uid": "44bed0ca7a8fb42fb72c1584d39a4442", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = 0;\n$b = 0;\nfor($x = 0; $x < 8; $x++)\n{\n    $c = trim(fgets(STDIN));\n    for($y = 0; $y < 8; $y++)\n    {\n        switch($c[$y])\n        {\n            case \"Q\": $a += 9;\n            break;\n            case \"q\": $b += 9;\n            break;\n            case \"R\": $a += 5;\n            break;\n            case \"r\": $b += 5;\n            break;\n            case \"B\": $a += 3;\n            break;\n            case \"b\": $b += 3;\n            break;\n            case \"N\": $a += 3;\n            break;\n            case \"n\": $b += 3;\n            break;\n            case \"P\": $a += 1;\n            break;\n            case \"p\": $b += 1;\n            break;\n        }\n    }\n}\nif($a > $b)\n{\n    print \"White\";\n}\nelseif($a == $b)\n{\n    print \"Draw\";\n}\nelseif($a < $b)\n{\n    print \"Black\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "012e34c3e9c9a02b912aece13a851b52", "src_uid": "44bed0ca7a8fb42fb72c1584d39a4442", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$r = fopen( 'php://stdin', 'r' );\n$a = array();\n$a[] = trim(fgets($r));\n$a[] = trim(fgets($r));\n$a[] = trim(fgets($r));\n$a[] = trim(fgets($r));\n$a[] = trim(fgets($r));\n$a[] = trim(fgets($r));\n$a[] = trim(fgets($r));\n$a[] = trim(fgets($r));\n$aMap = array();\n$aW = array('Q', 'R', 'B', 'N', 'P', 'K');\n$aB = array('q', 'r', 'b', 'n', 'p', 'k');\n$aWeight = array(\n    'q' => 9,\n    'r' => 5, \n    'b' => 3, \n    'n' => 3, \n    'p' => 1, \n    'k' => 0\n);\n$iW = 0;\n$iB = 0;\nforeach ($a AS $s) {\n    for ($i = 0; $i < strlen($s) && $i < 8; $i++) {\n        $sL = substr($s, $i, 1);\n        if ($sL == '.') {\n            continue;\n        }\n        else if (in_array($sL, $aW)) {\n            $iW += $aWeight[strtolower($sL)];\n        }\n        else if (in_array($sL, $aB)) {\n            $iB += $aWeight[$sL];\n        }\n        \n    }\n    \n}\n//echo 'White: ' . $iW . \"\\n\";\n//echo 'Black: ' . $iB . \"\\n\";\nif ($iW > $iB) {\n    echo 'White';\n}\nelse if ($iW < $iB) {\n    echo 'Black';\n}\nelse {\n    echo 'Draw';\n}\n\n\nfclose($r);\nexit();\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c16a3bdcba2ba0d68c21e3a98aea6d3a", "src_uid": "44bed0ca7a8fb42fb72c1584d39a4442", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$str = fopen(\"php://stdin\", \"r\");\n\t$n = stream_get_contents($str);\n\t$token = explode(\"\\n\", $n);\n\n\t$sWhiteChess = array('Q', 'R', 'B', 'N', 'P', 'K');\n\t$sBlackChess = array('q', 'r', 'b', 'n', 'p', 'k');\n\t$iChessWeight = array(9, 5, 3, 3, 1, 0);\n\t$iWhiteWeight = 0;\n\t$iBlackWeight = 0;\n\n\tfor ($i = 0; $i < 8; $i++) {\n\t\t$sInputLine = $token[$i];\n\t\tfor ($j = 0; $j < strlen($sInputLine); $j++) {\n\t\t\tfor ($k = 0; $k < 6; $k++)\t{\n\t\t\t\tif ($sInputLine[$j] == $sWhiteChess[$k]) {\n\t\t\t\t\t$iWhiteWeight += $iChessWeight[$k];\n\t\t\t\t}\n\t\t\t\tif ($sInputLine[$j] == $sBlackChess[$k]) {\n\t\t\t\t\t$iBlackWeight += $iChessWeight[$k];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tif ($iWhiteWeight > $iBlackWeight)\n\t\techo \"White\\n\";\n\telse if ($iWhiteWeight < $iBlackWeight)\n\t\techo \"Black\\n\";\n\telse if ($iWhiteWeight == $iBlackWeight)\n\t\techo \"Draw\\n\";\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "fa59941140a91ec39af9a6b723a1b643", "src_uid": "44bed0ca7a8fb42fb72c1584d39a4442", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// 519A     A и B и шахматы \n$in = fopen(\"php://stdin\", 'r');\n\n$w = $b = 0;\n\nfor ($i=0; $i < 8 ; $i++) { \n    $input_line = fgets($in);\n    // $arr2 = preg_split('//', substr($input_line, 0, strlen($input_line)-2), -1, PREG_SPLIT_NO_EMPTY);\n    for ($j=0; $j < 8; $j++) { \n        switch ($input_line[$j]) {\n            case 'Q':\n                $w += 9;\n                break;\n            case 'R':\n                $w += 5;\n                break;\n            case 'B':\n            case 'N':\n                $w += 3;\n                break;\n            case 'P':\n                $w += 1;\n                break;\n            case 'q':\n                $b += 9;\n                break;\n            case 'r':\n                $b += 5;\n                break;\n            case 'b':\n            case 'n':\n                $b += 3;\n                break;\n            case 'p':\n                $b += 1;\n                break;\n        }\n    }\n}\n\nif ($w > $b) {\n    echo \"White\";\n} elseif ($w < $b) {\n    echo \"Black\";\n} else {\n    echo \"Draw\";\n}\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "49132d1836426cc1644a31fe7e44fe41", "src_uid": "44bed0ca7a8fb42fb72c1584d39a4442", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nlist($b, $c) = explode(\" \", trim(fgets(STDIN)));\nlist($d, $e) = explode(\" \", trim(fgets(STDIN)));\nlist($f, $g) = explode(\" \", trim(fgets(STDIN)));\n$h = $a - ($d + $f);\nif(($h >= $b) && ($h <= $c))\n{\n    print $h . \" \" . $d . \" \" . $f;\n}\nelseif($h > $c)\n{\n    $i = $a - ($c + $f);\n    if(($i >= $d) && ($i <= $e))\n    {\n        print $c . \" \" . $i . \" \" . $f;\n    }\n    else\n    {\n        $j = $a - $c - $e;\n        print $c . \" \" . $e . \" \" . $j;\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation"], "code_uid": "05029fcc935e3015d414255805aa964d", "src_uid": "3cd092b6507079518cf206deab21cf97", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\nlist($e, $f) = explode(\" \", trim(fgets(STDIN)));\n$g = abs(min($a, $b, $c, $d));\n$a += $g;\n$b += $g;\n$c += $g;\n$d += $g;\n$g = max($a, $c) - min($a, $c);\n$h = max($b, $d) - min($b, $d);\n$i = $g / $e;\n$j = $h / $f;\nif($g % $e == 0)\n{\n     if($h % $f == 0)\n     {\n          if(($i % 2 == 0) && ($j % 2 == 0))\n          {\n               print \"YES\";\n          }\n          elseif(($i % 2 == 1) && ($j % 2 == 1))\n          {\n               print \"YES\";\n          }\n          else\n          {\n               print \"NO\";\n          }\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation", "number theory"], "code_uid": "de49f8928a864d7da86c7cfdd768c9fc", "src_uid": "1c80040104e06c9f24abfcfe654a851f", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $k = trim(fgets(STDIN));\n    $arr = explode(' ', trim(fgets(STDIN)));\n\n    $sum = 0;\n    for ($i=0; $i<$k; $i++)\n        $sum += $arr[$i];\n\n    $sum--;\n    $k++;\n    $count=0;\n    for ($i=1; $i<=5; $i++)\n    {\n        if (($sum+$i)%$k!=0)\n            $count++;\n    }\n    echo $count;\n?>\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "7274c39f0fa1a6e49c359eb7b14e3a77", "src_uid": "ff6b3fd358c758324c19a26283ab96a4", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n$t = trim(fgets(STDIN));\n$a = explode(' ',trim(fgets(STDIN)));\n$k=0;\n$q=0;\nfor($i=0;$i<=$t-1;$i++)\n{\n    $q+=$a[$i]; \n}\n$s = $q%($t+1) ;\n$i=1;\nwhile($i<=5)\n{\n    $s++;\n    if($s>$t+1) $s = 1;\n    if($s!=1) $k++;\n    $i++;   \n}\necho $k;", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "8b70f5e5a4f751c6e0f6e4f82e248303", "src_uid": "ff6b3fd358c758324c19a26283ab96a4", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    while(($n = trim(fgets(STDIN))) != NULL)\n    {\n        $sum = 0;\n        $num = explode(\" \", trim(fgets(STDIN)));\n        for($i = 0; $i < $n; ++$i)\n        {\n            $sum += $num[$i];\n        }\n        $ans = 0;\n        for($i = 1; $i <= 5; ++$i)\n        {\n            if(($i + $sum) % ($n + 1) != 1)\n            {\n                ++$ans;\n            } \n        }\n        print $ans.\"\\n\";\n    }\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "41e3909b310fbd603f361583e8c4535e", "src_uid": "ff6b3fd358c758324c19a26283ab96a4", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$n = trim(fgets(STDIN));\n$arr = explode(\" \", trim(fgets(STDIN)));\n$sum = 0;\nfor($i = 0; $i < $n; ++$i)\n    $sum += $arr[$i];\n$sum--;\n$ans =0;\nfor($i = 1; $i <= 5; ++$i)\n    if(($sum + $i) % ($n+1))\n        ++$ans;\nprintf(\"%d\",$ans);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "9d1a1d60ebaf970fc80c4e7348a06489", "src_uid": "ff6b3fd358c758324c19a26283ab96a4", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n        $n = (int) trim(fgets(STDIN));\n \n        $a = explode(\" \", trim(fgets(STDIN)));\n \n        $sum = 0;\n \n        for ($i = 0; $i < count($a); $i++) {\n                $sum += $a[$i];\n        }\n \n        $ans = 0;\n \n        for ($i = 1; $i <= 5; $i++) {\n                if (($sum + $i) % ($n + 1) != 1) {\n                        $ans++;\n                }\n        }\n \n        print $ans;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "08c5206863d89e7f3fa6a40b3effcce9", "src_uid": "ff6b3fd358c758324c19a26283ab96a4", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$n = trim(fgets(STDIN));\n$arr = explode(\" \", fgets(STDIN));\n$sum = 0;\nfor($i = 0; $i < $n; ++$i)\n    $sum += $arr[$i];\n$sum--;\n$ans =0;\nfor($i = 1; $i <= 5; ++$i)\n    if(($sum + $i) % ($n+1))\n        ++$ans;\nprintf(\"%d\",$ans);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "b745d7da3c5d77e0a08c2afff20a50be", "src_uid": "ff6b3fd358c758324c19a26283ab96a4", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input=explode(' ',fgets(STDIN));\n$x1=$input[0]+1;\n$x2=$input[1];\nwhile (true){\n      $u=0;\n      for ($i=2; $i <$x1-1; $i++) { \n            if($x1 % $i == 0){\n                  $u++;\n            }\n             \n      }\n      if($u == 0 and $x1 == $x2){\n            echo \"YES\";\n            break;\n      }else if($u == 0 and $x1 != $x2){\n            echo \"NO\";\n      break;\n      }\n      $x1++;\n}\n\n", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "ced0e2350cab27334705e97a75aace88", "src_uid": "9d52ff51d747bb59aa463b6358258865", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $stdin = fopen('php://stdin', 'r');\n    fscanf($stdin, \"%d %d\\n\", $number1, $number2);\n\n    function is_prime($n){\n        \n        for($i = 2; $i * $i <= $n; $i++){\n            \n            if($n % $i == 0) {return FALSE;}\n        }\n        return TRUE;\n    }\n    \n    $flag = TRUE;\n    for($i = $number1 + 1; ; $i++){\n        \n        if(is_prime($i)){\n            if($i === $number2){ $flag = FALSE; echo \"YES\\n\";}\n            break;\n        }\n    }\n    if($flag == TRUE) echo \"NO\\n\";\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "784ec84e03bdafcb3df2d60b71f37823", "src_uid": "9d52ff51d747bb59aa463b6358258865", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile(fscanf(STDIN,\"%d%d\",$a,$b)) {\n    $con = 0;\n    $i = 0;\n    for($i = $a+1; $i <= $b; ++$i) {\n        $temp = 1;\n        for($j = 2; $j < $i; ++$j) {\n            if($i % $j == 0){\n                $temp = 0;\n                break;\n            }\n\n            \n        }\n        if($temp == 1 && $i != $b) \n            break;\n        else if($temp == 1 && $i == $b)\n            $con = 1;\n    }\n    if($con == 1)\n        echo \"YES\\n\";\n    else \n        echo \"NO\\n\";\n}\n", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "9521d35e1244f83009bd3d39ee23ed0e", "src_uid": "9d52ff51d747bb59aa463b6358258865", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$p = array(2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47);\nlist($n,$m) = explode(' ',trim(fgets(STDIN)));\n\nif(array_search($m,$p)==false){print 'NO'; exit(0);}\n\nif(array_search($m,$p)-array_search($n,$p)==1) print 'YES'; else print 'NO';\n\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "245d81d60eeb9dcc95367975acf46812", "src_uid": "9d52ff51d747bb59aa463b6358258865", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\nfscanf(STDIN, \"%d %d\",$n, $m);\n\n$Eline= array_fill(0, $m+1, 0);\n$Eline[1]=1;\n$Eline[0]=1;\nfor ($i=2;$i<=ceil(SQRT($m));$i++){\n  if ($Eline[$i]!=1){\n\tfor ($k=2;($i*$k)<=$m;$k++)\n       $Eline[$i*$k]=1;\n\t}\n}\n\nif ($Eline[$m]==0){\n  $j = $m - 1;\n  while ($Eline[$j]!=0){\n    $j--;\n  }\n  \n  echo ($j==$n)?\"YES\":\"NO\";\n} else \necho \"NO\"; \n\n\n    \n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "0f4fd84910f5c1d1c5ede8d1d46cb24b", "src_uid": "9d52ff51d747bb59aa463b6358258865", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $m) = explode(' ', trim(fgets(STDIN)));\n$t = 0;\nfor ($i = 2; $i < 51; $i++)\n{\n    $k = 0;\n    for ($j = 1; $j <= $i; $j++)\n    {\n        if ($i % $j == 0)\n            $k++;\n        if ($k > 2)\n            break;\n    }\n    if ($k == 2)\n    {\n        $mas[$t] = $i;\n        $t++; \n    } \n}\n\nif (array_search($m, $mas) == array_search($n, $mas) + 1)\n    echo \"YES\";\nelse\n    echo \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "80a62cd5fa4958a148f57bdfe5019e1b", "src_uid": "9d52ff51d747bb59aa463b6358258865", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n \n  while(fscanf(STDIN, \"%d %d\", $a, $b) == 2)\n  {\n    for($i=1; ; $i++){\n        if($i%2==0){    // Valera give\n            if($b >= $i){\n                $b -= $i;\n            }else{\n\t\t\t\techo 'Valera';\n\t\t\t\treturn 0;\n            }\n        }else{     // Vladik give  first\n            if($a >= $i){\n                $a -= $i;\n            }else{\n                echo 'Vladik';\n\t\t\t\treturn 0;\n            }\n        }\n    }\n}\n\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "04dc9396033a0dc40a6db00e92977961", "src_uid": "87e37a82be7e39e433060fd8cdb03270", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\nwhile(fscanf(STDIN, \"%d %d\", $a, $b) == 2)\n{\n\t$i = 1;\n\twhile ($a >= 0 || $b >= 0) \n\t{\n\t\t\n\t\tif ($i % 2 == 0)\n\t\t\t$b -= $i;\n\t\telse\n\t\t\t$a -= $i;\n\t\tif ($a < 0)\n\t\t{\n\t\t\tprint \"Vladik\\n\";\n\t\t\tbreak;\n\t\t}\n\t\telse if ($b < 0)\n\t\t{\n\t\t\tprint \"Valera\\n\";\n\t\t\tbreak;\n\t\t}\n\t\t$i = $i + 1;\n\t}\n}", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "4ed2b731fbaa91c71345d2c3ec495eae", "src_uid": "87e37a82be7e39e433060fd8cdb03270", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=explode(' ',trim(fgets(STDIN)));\n$n=intval(sqrt($a[0]));\nif ($n*($n+1)>$a[1]){\n    print 'Valera';\n}\nelse{\n    print 'Vladik';\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "083613a929282ad05c8626fc7080bfda", "src_uid": "87e37a82be7e39e433060fd8cdb03270", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    list($a, $b) = explode(' ', trim(fgets(STDIN)));\n    $n = $b;\n    if ($a>$b) {\n        $n = $a;\n    }\n    for ($i = 1; $i <= $n+1; $i++) {\n        if ($i%2 == 1) {\n            \n            if ($a < $i) {\n                echo 'Vladik';\n                break;\n            }\n            $a = $a - $i;\n        } else {\n            \n            if ($b < $i) {\n                echo 'Valera';\n                break;\n            }\n            $b = $b - $i;\n        }\n    }\n   \n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "3afb38ec6c79da13c341e443994b21bc", "src_uid": "87e37a82be7e39e433060fd8cdb03270", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$IN = STDIN;\nfscanf($IN, \"%d %d %d %d %d %d\", $koef1, $koef2, $koef3, $koef4, $a, $b);\n$koeff = Array($koef1, $koef2, $koef3, $koef4);\n\n\n$comb[] = Array(0,1,2,3);\n$comb[] = Array(0,1,3,2);\n$comb[] = Array(0,2,1,3);\n$comb[] = Array(0,2,3,1);\n$comb[] = Array(0,3,1,2);\n$comb[] = Array(0,3,2,1);\n$comb[] = Array(1,0,2,3);\n$comb[] = Array(1,0,3,2);\n$comb[] = Array(1,2,0,3);\n$comb[] = Array(1,2,3,0);\n$comb[] = Array(1,3,0,2);\n$comb[] = Array(1,3,2,0);\n$comb[] = Array(2,0,1,3);\n$comb[] = Array(2,0,3,1);\n$comb[] = Array(2,1,0,3);\n$comb[] = Array(2,1,3,0);\n$comb[] = Array(2,3,0,1);\n$comb[] = Array(2,3,1,0);\n$comb[] = Array(3,0,1,2);\n$comb[] = Array(3,0,2,1);\n$comb[] = Array(3,1,0,2);\n$comb[] = Array(3,1,2,0);\n$comb[] = Array(3,2,0,1);\n$comb[] = Array(3,2,1,0);\n\n\nfunction TargetFunction ($x,$a1,$a2,$a3,$a4){\n  return (((($x % $a1) % $a2) %$a3 ) % $a4);\n}\n\n\n$coolxcnt = 0;\nfor ($x=$a; $x<=$b; $x++){\n    $xcnt=0;\n    foreach ($comb as $coolset){\n        if ($x==TargetFunction($x,$koeff[$coolset[0]],$koeff[$coolset[1]],$koeff[$coolset[2]],$koeff[$coolset[3]])){\n            $xcnt++;\n            if ($xcnt>7){\n                $coolxcnt++;\n                break;\n            }\n        \n        }    \n    } \n}\necho $coolxcnt;\n\n\n?>", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "0a4902166da97bea6cf7e433da27c254", "src_uid": "63b9dc70e6ad83d89a487ffebe007b0a", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$IN = STDIN;\nfscanf($IN, \"%d %d %d %d %d %d\", $k1, $k2, $k3, $k4, $a, $b);\n$min = min(array($k1, $k2, $k3, $k4));\nif ($min>$b)\n   echo $b-$a+1;\nelseif (($min>$a)&&($min<$b))\n  echo $min - $a;\nelse  \n    echo 0;\n?>\n", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "535a1f10f8d16143389fcdf3295d9a7d", "src_uid": "63b9dc70e6ad83d89a487ffebe007b0a", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d %d %d %d %d %d\", $p1, $p2, $p3, $p4, $a, $b);\n    $min = min(min($p1, $p2), min($p3, $p4));\n    printf(\"%d\\n\", max(0, min($b + 1 - $a, $min - $a)));\n   ?>", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "02302a2a9af5e4c36fbde9684e7cef2f", "src_uid": "63b9dc70e6ad83d89a487ffebe007b0a", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = $a * $c;\nwhile(TRUE)\n{\n     $e = ceil($a / 2);\n     $f = floor($a / 2);\n     $g += ($f * 2 * $b) + $f;\n     if($e == 1)\n     {\n          break;\n     }\n     else\n     {\n          $a = $e;\n     }\n}\nprint $g . \" \" . $d;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "4c079a53651933f93bae7b949a6a5a9e", "src_uid": "eb815f35e9f29793a120d120968cfe34", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$data = fgets(STDIN);\n$data = explode(\" \", $data);\n\n\n$participants = $data[0];\n$bottles_per_player = $data[1];\n$towels_per_player = $data[2];\n\n$current_participants = $participants;\n$matches = 0;\nwhile($current_participants > 1)\n{\n    $matches += floor($current_participants / 2);\n    $current_participants = ceil($current_participants / 2);\n}\n\n$total_bottles = ($matches * ($bottles_per_player * 2)) + $matches;\n$total_towels = ($participants * $towels_per_player);\n\necho $total_bottles . \" \" . $total_towels;\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "aa1ff3b460de1ffab81a4e8910794f8a", "src_uid": "eb815f35e9f29793a120d120968cfe34", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = $b - $a;\n$f = $c + $d;\n$g = $e / $f;\nprint number_format($g, 6, \".\", \"\");\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "358ddeb6caaa85d6f7cd829c9ccb7740", "src_uid": "f34f3f974a21144b9f6e8615c41830f5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nfor($x = 1; $x <= 100; $x++)\n{\n    sort($b);\n    $c = array();\n    array_push($c, $b[0]);\n    unset($b[0]);\n    for($y = 1; $y <= 100; $y++)\n    {\n        if($b[$y] == 0)\n        {\n            continue;\n        }\n        elseif($b[$y] >= count($c))\n        {\n            array_push($c, $b[$y]);\n            unset($b[$y]);\n        }\n        elseif($b[$y] < count($c))\n        {\n            continue;\n        }\n    }\n    if(count($b) == 0)\n    {\n        break;\n    }\n}\nprint $x;\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "2dec3ba007f38ed5ff77a900cba335e0", "src_uid": "7c710ae68f27f140e7e03564492f7214", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = array(\"1\", \"11\", \"111\", \"1111\", \"2\", \"22\", \"222\", \"2222\", \"3\", \"33\", \"333\", \"3333\", \"4\", \"44\", \"444\", \"4444\", \"5\", \"55\", \"555\", \"5555\", \"6\", \"66\", \"666\", \"6666\", \"7\", \"77\", \"777\", \"7777\", \"8\", \"88\", \"888\", \"8888\", \"9\", \"99\", \"999\", \"9999\");\n$b = trim(fgets(STDIN));\nfor($x = 0; $x < $b; $x++)\n{\n     $c = 0;\n     $d = trim(fgets(STDIN));\n     for($y = 0; $y < count($a); $y++)\n     {\n          $c += strlen($a[$y]);\n          if($a[$y] == $d)\n          {\n               print $c . \"\\n\";\n               break;\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "2b95ae7f5b443d92f1959970c7dc7edf", "src_uid": "289a55128be89bb86a002d218d31b57f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "  <?php\n  $t = trim(fgets(STDIN));\n for($q=0; $q<$t; $q++) {\n    // list($n ) = explode(' ', trim(fgets(STDIN)));\n     $n = trim(fgets(STDIN));\n     $c = 0;\n     for($i=1; $i<=9; $i++) {\n         if($i < $n[0]) {\n             \n            $c += 10; \n         } elseif($i == $n[0]) {\n             for($j=1; $j<=strlen($n); $j++) {\n                 $c +=$j;\n             }\n         } else {\n             break;\n         }\n     }\n     \n     echo $c . \"\\n\";\n    \n }\n ", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "7c93f9b4fd3139aa11f2983840e4d92e", "src_uid": "289a55128be89bb86a002d218d31b57f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $jt = trim(fgets(STDIN));\n    for($sr = 0; $sr < $jt; $sr++){\n        $a = trim(fgets(STDIN));\n        $b = str_split($a);\n        $i = $b[0];\n        $c = count($b);\n        $r = ($i - 1) * 10;\n        while($c > 0){\n            $r += $c;\n            $c--;\n        }\n        echo $r.\"\\n\";\n    }\n    \n    \n    \n    \n    \n    \n \n?>\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "69bed012f6cea0dbe002b06c9bc53f98", "src_uid": "289a55128be89bb86a002d218d31b57f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$t);\n\nwhile ($t--)\n{\n\t\n\tfscanf(STDIN,\"%s\",$boringApartmentNo);\n\t\n\tif($boringApartmentNo[0]==1)\n\t    {\n\t    \t$digitSum=0;\n\t    \tfor ($i=0,$j=1; $i <strlen($boringApartmentNo) ; $i++,$j++)\n\t    \t{ \n\t    \t\t$digitSum+=$j;\n\t    \t}\n\t    }\n\t    \tif($boringApartmentNo[0]==2)\n\t    {\n\t    \t$digitSum=10;\n\t    \tfor ($i=0,$j=1; $i <strlen($boringApartmentNo) ; $i++,$j++)\n\t    \t{ \n\t    \t\t$digitSum+=$j;\n\t    \t}\n\t    }\n\t    \tif($boringApartmentNo[0]==3)\n\t    {\n\t    \t$digitSum=20;\n\t    \tfor ($i=0,$j=1; $i <strlen($boringApartmentNo) ; $i++,$j++)\n\t    \t{ \n\t    \t\t$digitSum+=$j;\n\t    \t}\n\t    }\n\t    \tif($boringApartmentNo[0]==4)\n\t    {\n\t    \t$digitSum=30;\n\t    \tfor ($i=0,$j=1; $i <strlen($boringApartmentNo) ; $i++,$j++)\n\t    \t{ \n\t    \t\t$digitSum+=$j;\n\t    \t}\n\t    }\n\t    \tif($boringApartmentNo[0]==5)\n\t    {\n\t    \t$digitSum=40;\n\t    \tfor ($i=0,$j=1; $i <strlen($boringApartmentNo) ; $i++,$j++)\n\t    \t{ \n\t    \t\t$digitSum+=$j;\n\t    \t}\n\t    }\n\t    \tif($boringApartmentNo[0]==6)\n\t    {\n\t    \t$digitSum=50;\n\t    \tfor ($i=0,$j=1; $i <strlen($boringApartmentNo) ; $i++,$j++)\n\t    \t{ \n\t    \t\t$digitSum+=$j;\n\t    \t}\n\t    }\n\t    \tif($boringApartmentNo[0]==7)\n\t    {\n\t    \t$digitSum=60;\n\t    \tfor ($i=0,$j=1; $i <strlen($boringApartmentNo) ; $i++,$j++)\n\t    \t{ \n\t    \t\t$digitSum+=$j;\n\t    \t}\n\t    }\n\t    \tif($boringApartmentNo[0]==8)\n\t    {\n\t    \t$digitSum=70;\n\t    \tfor ($i=0,$j=1; $i <strlen($boringApartmentNo) ; $i++,$j++)\n\t    \t{ \n\t    \t\t$digitSum+=$j;\n\t    \t}\n\t    }\n\t    \tif($boringApartmentNo[0]==9)\n\t    {\n\t    \t$digitSum=80;\n\t    \tfor ($i=0,$j=1; $i <strlen($boringApartmentNo) ; $i++,$j++)\n\t    \t{ \n\t    \t\t$digitSum+=$j;\n\t    \t}\n\t    }\n\t    echo \"$digitSum\\n\";\t\n\n}", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "bced323d1d3cf80c39eed3beb03fff4e", "src_uid": "289a55128be89bb86a002d218d31b57f", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$c = 1;\n$p = 2;\n\nfor ($i=0; $n>=$c; $i++) {\n    $n -= $c;\n    $c += $p++;\n}\necho $i;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6f273b213a1dbb2309e0f61dfad04154", "src_uid": "873a12edffc57a127fdfb1c65d43bdb0", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$fi=fopen('test.inp',\"r\");\n\t$n=fgets(STDIN);\n\t$res=1;\n\t$c=1;\n\t$s=1;\n\twhile ($s<=$n){\n\t\t$res++;\n\t\t$c+=$res;\n\t\t$s+=$c;\n\t}\n\techo $res-1;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4d3bf6abb13bca02b30d38d5722baba3", "src_uid": "873a12edffc57a127fdfb1c65d43bdb0", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = file(\"php://stdin\");\n$input = $input[0];\n\nfor($i=1;$i<=$input;$i++){\nif($gfd != 1){\nfor($j=1;$j<=$i;$j++){\n$grfd = $j + $grfd;\n\n}\n\nif($grfd > $input && $gfd != 1){\necho $i-1;\n$gfd = 1;\n}\nif($grfd >= $input && $gfd != 1){\necho $i;\n$gfd = 1;\n}\n}\n}\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b1fc09eea15795456d42974a0d071fa3", "src_uid": "873a12edffc57a127fdfb1c65d43bdb0", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 1;\n$c = 1;\n$d = 1;\n$e = 1;\nfor($x = 1; $x < 10000; $x++)\n{\n    if($e == $a)\n    {\n        print $d;\n        break;\n    }\n    elseif($e > $a)\n    {\n        $d--;\n        print $d;\n        break;\n    }\n    elseif($e < $a)\n    {\n        $c++;\n        $b += $c;\n        $e += $b;\n        $d++;\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "090d1161d0c4d8a99dba2252b8e24dc3", "src_uid": "873a12edffc57a127fdfb1c65d43bdb0", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN));\n\t$d=1;\n\t$c=0;\n\tdo {\n\t\t$n-=$d*($d+1)/2;\n\t\t$c++;\n\t\t$d++;\n\t} while ($n>=0);\n\techo $c-1;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4525292dd49d5185bd126d3319ed5bbd", "src_uid": "873a12edffc57a127fdfb1c65d43bdb0", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$max = 0;$next = 0;$sum=0;\nwhile (true)\n{\n    $max++;\n    $next = $next+$max;\n    $sum +=$next;\n    if ($sum>$n)break;\n}\necho $max-1;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "21761bc302751fc969f28a2dd104440e", "src_uid": "873a12edffc57a127fdfb1c65d43bdb0", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\n#error_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\n###### /IO ######\n\nfunction getAnswer($is_test = false, $f = false) {\n\tif ($is_test === false) {\n\t\t$f = STDIN;\n\t}\n\t/* begin body */\n\t$n = readNum($f);\n\t$nums = array(1 => 1);\n\t$row = 1;\n\t$max = 1;\n\twhile (true) {\t\t\n\t\t$row++;\n\t\t$nums[$row]=0;\n\t\tfor($i=1;$i<=$row;$i++){\n\t\t\t$nums[$row]+=$i;\n\t\t}\n\t\t$total = array_sum($nums);\n\t\tif($total>$n){\n\t\t\tbreak;\n\t\t}\n\t\t$max++;\n\t}\n\techo $max;\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "312fb4ebb11a8c357a0d49530f8f6bb6", "src_uid": "873a12edffc57a127fdfb1c65d43bdb0", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\n$n = (int) fgets(STDIN);\n\n$sum = 1;\n$count = 1;\n$curLevel = 1;\n\nwhile ($sum + $curLevel + $count < $n){\n\t$curLevel += $count + 1;\n\t$sum += $curLevel;\n\t$count++;\n}\n\necho $count;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "98482902d896bc73eb1ae7e2c82b8677", "src_uid": "873a12edffc57a127fdfb1c65d43bdb0", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\n$n = fgets(STDIN);\n$cnt = 0;\nfor ($i = 1; $n >= 0; ++$i)\n{\n    $cnt += $i;\n    $n -= $cnt;\n}\n$i -= 2;\necho \"$i\\n\";", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ebb939a03d543bf1c33aff0f6a508519", "src_uid": "873a12edffc57a127fdfb1c65d43bdb0", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// 492A     Ваня и кубики \n$in = fopen(\"php://stdin\", 'r');\n\n$input_line = fgets($in);\n$n = (int) $input_line;\n\n//    list($xi, $yi, $zi) = preg_split('/ /', substr($input_line, 0, strlen($input_line)-2), -1, PREG_SPLIT_NO_EMPTY);\n\n$s = 1;\n\nfor ($i=1; $s <= $n; $i++) { \n    $s += $i;\n    $n -= $s;\n}\n\necho $i - 1;\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b0b5917a7ded751e01a98649c670c482", "src_uid": "873a12edffc57a127fdfb1c65d43bdb0", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\nrsort($c);\n$d = 0;\nfor($x = 1; $x <= $a; $x++)\n{\n     $e = $c;\n     $f = 0;\n     $g = 0;\n     $i = 0;\n     while(TRUE)\n     {\n          $f = count(array_slice($e, 0, $x)) * $i;\n          $i++;\n          $h = array_sum(array_slice($e, 0, $x)) - $f;\n          if($h <= 0)\n          {\n               break;\n          }\n          $g += $h;\n          if($g >= $b)\n          {\n               $d = $x;\n               break;\n          }\n          array_splice($e, 0, $x);\n          if(count($e) == 0)\n          {\n               break;\n          }\n          elseif(count($e) < $x)\n          {\n               for($y = 0; $y < count($e); $y++)\n               {\n                    if($e[$y] - $i > 0)\n                    {\n                         $g += $e[$y] - $i;\n                    }\n                    else\n                    {\n                         break;\n                    }\n               }\n               if($g >= $b)\n               {\n                    $d = $x;\n               }\n               break;\n          }\n     }\n     if($d != 0)\n     {\n          break;\n     }\n}\nif($d == 0)\n{\n     print \"-1\";\n}\nelse\n{\n     print $d;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "4bca2f49cb7ff741e844a4890873a0d5", "src_uid": "acb8a57c8cfdb849a55fa65aff86628d", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = sqrt($a);\nprint ceil($b + $b);\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "binary search"], "code_uid": "15fe694e0b0ee96938e3940da8b20c5a", "src_uid": "eb8212aec951f8f69b084446da73eaf7", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = fopen('php://stdin', 'r');\n//$in = fopen('khaled.in', 'r');\n\n$n = rtrim(fgets($in));\n$n *= 1;\n\n$now1 = 1;\n$now2 = 1;\n\nwhile(($now1 * $now1) < $n)$now1++;\nwhile(($now2 * ($now2 + 1)) < $n)$now2++;\n\necho min(2 * $now2 + 1, 2 * $now1) . \"\\n\";\n\nfunction what($x){fprintf(STDERR, $x . \"\\n\");}\n\n?>\n", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "binary search"], "code_uid": "102604408105b288bd0b613a80d8ea65", "src_uid": "eb8212aec951f8f69b084446da73eaf7", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$data = explode(' ', file_get_contents(\"php://stdin\"));\n$data_pos = 0;\n\nfunction readInt() {\n\tglobal $data, $data_pos;\n\treturn intval($data[$data_pos++]);\n}\n\nclass Point {\n\tfunction __construct($x, $y) {\n\t\t$this->x = $x;\n\t\t$this->y = $y;\n\t}\n\tstatic function read() {\n\t\t$x = readInt();\n\t\t$y = readInt();\n\t\treturn new Point($x, $y);\n\t}\n\tfunction eps($d) {\n\t\tfor ($dx = -$d; $dx <= $d; $dx++)\n\t\t\tfor ($dy = -$d; $dy <= $d; $dy++)\n\t\t\t\tif (abs($dx) + abs($dy) <= $d)\n\t\t\t\t\tyield new Point($this->x + $dx, $this->y + $dy);\n\t}\n}\n\nfunction pr($a, $b, $c) {\n\treturn ($a->x - $b->x) * ($c->x - $b->x) + ($a->y - $b->y) * ($c->y - $b->y) == 0;\n}\nfunction area($a, $b, $c) {\n\treturn ($a->x - $b->x) * ($c->y - $b->y) - ($a->y - $b->y) * ($c->x - $b->x);\n}\nfunction isRight($a, $b, $c) {\n\treturn (pr($a, $b, $c) || pr($b, $c, $a) || pr($c, $a, $b)) && area($a, $b, $c) != 0;\n}\nfunction d($a, $b) {\n\treturn abs($a->x - $b->x) + abs($a->y - $b->y);\n}\n\nfunction check($maxDiff) {\n\tglobal $a;\n\tforeach($a[0]->eps($maxDiff) as $p0)\n\t\tforeach($a[1]->eps($maxDiff) as $p1)\n\t\t\tforeach($a[2]->eps($maxDiff) as $p2)\n\t\t\t\tif (isRight($p0, $p1, $p2) && d($p0, $a[0]) + d($p1, $a[1]) + d($p2, $a[2]) <= $maxDiff)\n\t\t\t\t\treturn true;\n\treturn false;\n}\n\n$a = array_map(function() { return Point::read(); }, range(0, 2));\nif (check(0))\n\tprintf(\"RIGHT\\n\");\nelse if (check(1))\n\tprintf(\"ALMOST\\n\");\nelse\n\tprintf(\"NEITHER\\n\");\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "77e1fedbe3089e5a2aae2a99dc295899", "src_uid": "8324fa542297c21bda1a4aed0bd45a2d", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction debug($data, $die = true) {\n    echo '<pre>';\n\n    if (is_array($data)) {\n        print_r($data);\n    } else {\n        var_dump($data);\n    }\n\n    if ($die) {\n        die();\n    }\n\n    echo '</pre>';\n}\n\nfunction stdin() {\n    $stdin = @fopen('data.txt', 'r');\n    if (!$stdin) {\n        $stdin = fopen('php://stdin', 'r');\n    }\n\n    return $stdin;\n}\n\nfunction g() {\n    global $stdin;\n    return trim(fgets($stdin));\n}\n\n$stdin = stdin();\n/****************************************************** Solving block *****************************************************/\nlist($x1, $y1, $x2, $y2, $x3, $y3) = explode(' ', g());\n\nfunction pifagor($x1, $y1, $x2, $y2, $x3, $y3) {\n    if($x1 == $x2 && $y1 == $y2 || $x1 == $x3 && $y1 == $y3 || $x3 == $x2 && $y3 == $y2) {\n        return false;\n    }\n\n    $a = pow(abs($x1-$x2), 2) + pow(abs($y1-$y2), 2);\n    $b = pow(abs($x1-$x3), 2) + pow(abs($y1-$y3), 2);\n    $c = pow(abs($x3-$x2), 2) + pow(abs($y3-$y2), 2);\n\n    $max = $a;\n    if($b > $max) $max = $b;\n    if($c > $max) $max = $c;\n\n    return $max == $a + $b + $c - $max;\n}\n\n$pifagor = pifagor($x1, $y1, $x2, $y2, $x3, $y3);\n\n$almost =\n        pifagor($x1+1, $y1, $x2, $y2, $x3, $y3) ||\n        pifagor($x1-1, $y1, $x2, $y2, $x3, $y3) ||\n        pifagor($x1, $y1+1, $x2, $y2, $x3, $y3) ||\n        pifagor($x1, $y1-1, $x2, $y2, $x3, $y3) ||\n\n        pifagor($x1, $y1, $x2+1, $y2, $x3, $y3) ||\n        pifagor($x1, $y1, $x2-1, $y2, $x3, $y3) ||\n        pifagor($x1, $y1, $x2, $y2+1, $x3, $y3) ||\n        pifagor($x1, $y1, $x2, $y2-1, $x3, $y3) ||\n\n        pifagor($x1, $y1, $x2, $y2, $x3+1, $y3) ||\n        pifagor($x1, $y1, $x2, $y2, $x3-1, $y3) ||\n        pifagor($x1, $y1, $x2, $y2, $x3, $y3+1) ||\n        pifagor($x1, $y1, $x2, $y2, $x3, $y3-1) ||\n\n        false;\n\nif($pifagor) {\n    echo 'RIGHT';\n} else if($almost) {\n    echo 'ALMOST';\n} else {\n    echo 'NEITHER';\n}\n\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "7aaefeeaa08f73b2022636fc4ba35cc2", "src_uid": "8324fa542297c21bda1a4aed0bd45a2d", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nlist($d, $e) = explode(\" \", trim(fgets(STDIN)));\nlist($f, $g) = explode(\" \", trim(fgets(STDIN)));\n$h = (max($b, $c) - min($b, $c)) * $e;\nif($g == 1)\n{\n     if($b < $c)\n     {\n          if($f <= $b)\n          {\n               $i = ($c - $f) * $d;\n          }\n          else\n          {\n               $i = (($a - $f) + $a + $c) * $d;\n          }\n     }\n     elseif($b > $c)\n     {\n          if($f < $b)\n          {\n               $i = (($a - $f) + ($a - $c)) * $d;\n          }\n          else\n          {\n               $i = (($a - $f) + ($a - $c)) * $d;\n          }\n     }\n}\nelseif($g == -1)\n{\n     if($b < $c)\n     {\n          if($f <= $b)\n          {\n               $i = ($f + $c) * $d;\n          }\n          else\n          {\n               $i = ($f + $c) * $d;\n          }\n     }\n     elseif($b > $c)\n     {\n          if($f < $b)\n          {\n               $i = ($f + $a + ($a - $c)) * $d;\n          }\n          else\n          {\n               $i = ($f - $c) * $d;\n          }\n     }\n}\nprint min($h, $i);\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "ce0ce293bf37f6c070dbbf58740e0f38", "src_uid": "fb3aca6eba3a952e9d5736c5d8566821", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a1, $a2, $b1, $b2) = explode(\" \", trim(fgets(STDIN)));\nlist($c1, $c2, $d1, $d2) = explode(\" \", trim(fgets(STDIN)));\nlist($e1, $e2, $f1, $f2) = explode(\" \", trim(fgets(STDIN)));\nlist($g1, $g2, $h1, $h2) = explode(\" \", trim(fgets(STDIN)));\n$i = array($a1, $a2, $b1, $b2);\n$j = array($c1, $c2, $d1, $d2);\n$k = array($e1, $e2, $f1, $f2);\n$l = array($g1, $g2, $h1, $h2);\n$i2 = array($a1, $c1, $e1, $g1);\n$j2 = array($a2, $c2, $e2, $g2);\n$k2 = array($b1, $d1, $f1, $h1);\n$l2 = array($b2, $d2, $f2, $h2);\n$o1 = $b1 . $b2 . $a1 . $a2;\n$o2 = $d1 . $d2. $c1 . $c2;\n$o3 = $f1 . $f2 . $e1 . $e2;\n$o4 = $h1 . $h2 . $g1 . $g2;\n$o5 = $a1 . $a2 . $b1 . $b2;\n$o6 = $c1 . $c2 . $d1 . $d2;\n$o7 = $e1 . $e2 . $f1 . $f2;\n$o8 = $g1 . $g2 . $h1 . $h2;\n$i3 = array($o5, $o6, $o7, $o8);\n$p = array_unique($i3);\n$m = array($a1 . \":\" . $a2, $b1 . \":\" . $b2, $c1 . \":\" . $c2, $d1 . \":\" . $d2, $e1 . \":\" . $e2, $f1 . \":\" . $f2, $g1 . \":\" . $g2, $h1 . \":\" . $h2);\n$n = array_unique($m);\nsort($m);\nsort($n);\nif((count(array_unique($i)) == 1) || (count(array_unique($j)) == 1) || (count(array_unique($k)) == 1) || (count(array_unique($l)) == 1) || (count(array_unique($i2)) == 1) || (count(array_unique($j2)) == 1) || (count(array_unique($k2)) == 1) || (count(array_unique($l2)) == 1) || ($o1 == $o6) || ($o1 == $o7) || ($o1 == $o8) || ($o2 == $o5) || ($o2 == $o7) || ($o2 == $o8) || ($o3 == $o5) || ($o3 == $o6) || ($o3 == $o8) || ($o4 == $o5) || ($o4 == $o6) || ($o4 == $o7) || (count($p) < 4))\n{\n    print \"NO\";\n}\nelse\n{\n    if((($a1 == $b1) || ($a2 == $b2)) && (($c1 == $d1) || ($c2 == $d2)) && (($e1 == $f1) || ($e2 == $f2)) && (($g1 == $h1) || ($g2 == $h2)))\n    {\n        if((count($n) == 4) && ($m[0] == $m[1]) && ($m[2] == $m[3]) && ($m[4] == $m[5]) && ($m[6] == $m[7]))\n        {\n            print \"YES\";\n        }\n        else\n        {\n            print \"NO\";\n        }\n    }\n    else\n    {\n        print \"NO\";\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "constructive algorithms", "math", "implementation", "geometry"], "code_uid": "875042fc1ab7173160da1b2f322e5797", "src_uid": "ad105c08f63e9761fe90f69630628027", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = 'php://stdin';\n//$in = 'input.txt';\n\n$arr = file($in);\n//$data = file_get_contents($in);\n//$r = fopen($in, 'r');\n\n$allpoints = array();\n$xx = 0; $yy = 0;\nwhile ($line = trim(array_shift($arr))) {\n\tlist ($x1, $y1, $x2, $y2) = explode(' ', $line);\n\tif ($x1 != $x2 && $y1 != $y2) {\n\t\tdie('NO');\n\t}\n\tif ($x1 == $x2 && $y1 == $y2) {\n\t\tdie('NO');\n\t}\n\tif ($x2 < $x1) {\n\t\tlist($x1, $x2) = array($x2, $x1);\n\t} else if ($x1 == $x2) {\n\t\t$xx++;\n\t}\n\tif ($y2 < $y1) {\n\t\tlist($y1, $y2) = array($y2, $y1);\n\t} else if ($y1 == $y2) {\n\t\t$yy++;\n\t}\n\t$minx = isset($minx) ? ($x1 < $minx ? $x1 : $minx) : $x1;\n\t$maxx = isset($maxx) ? ($x2 > $maxx ? $x2 : $maxx) : $x2;\n\t$miny = isset($miny) ? ($y1 < $miny ? $y1 : $miny) : $y1;\n\t$maxy = isset($maxy) ? ($y2 > $maxy ? $y2 : $maxy) : $y2;\n\t$allpoints = array_merge($allpoints, array(\"$x1 $y1\", \"$x2 $y2\"));\n}\nif ($minx == $maxx || $miny == $maxy) {\n\tdie('NO');\n}\n\nif ($xx != 2 || $yy != 2) {\n\tdie('NO');\n}\n\n$counts = array_count_values($allpoints);\nif (count($counts) != 4) {\n\tdie('NO');\n}\nforeach ($counts as $val) {\n\tif ($val != 2) {\n\t\tdie('NO');\n\t}\n}\n\necho 'YES';\n//fclose($r);\n", "lang_cluster": "PHP", "tags": ["brute force", "constructive algorithms", "math", "implementation", "geometry"], "code_uid": "4109e712c8fd81f34e69a818f6528037", "src_uid": "ad105c08f63e9761fe90f69630628027", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $cin = fopen(\"php://stdin\", \"r\");\n    $n = intval(fgets($cin));\n    $s = fgets($cin);\n    $s = str_replace(PHP_EOL, '', $s);\n\n    $ans = 0;\n    $a = array();\n    for ($i = 0; $i < $n; $i++) {\n        $a[$i] = ord($s[$i])-ord(0);\n    }\n\n    $f = 0;\n    for ($j = 0; $j < $n; $j++) {\n        $sum = 0;\n        $ans += $a[$j];\n        for ($i = $j+1; $i < $n;) {\n            while (($a[$i] == 0 || $sum < $ans) && $i < $n) {\n                $sum += $a[$i];\n                $i++;\n            }\n\n            if ($ans == 0 && $sum == $ans) {\n                $sum += $a[$i];\n                $i++;\n                $f = 1;\n            }\n\n            if ($sum == $ans) {\n                $sum = 0;\n                $f = 1;\n            } else {\n                $f = 0;\n                break;\n            }\n        }\n\n        if ($f == 1) {\n            break;\n        }\n    }\n\n    if ($f == 1) {\n        print_r(\"YES\".\"\\n\");\n    } else {\n        print_r(\"NO\".\"\\n\");\n    }\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7c9581c011429a3371bd0919f14d8ab1", "src_uid": "410296a01b97a0a39b6683569c84d56c", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split(trim(fgets(STDIN)));\nif($a == 2)\n{\n     if($b[0] == $b[1])\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\nelse\n{\n     for($x = 1; $x < $a - 1; $x++)\n     {\n          $c = array_sum(array_slice($b, 0, $x));\n          $d = 0;\n          $e = array();\n          for($y = $x; $y < $a; $y++)\n          {\n               $d += $b[$y];\n               if($d == $c)\n               {\n                    $e[count($e)] = 1;\n                    $d = 0;\n               }\n               elseif($d > $c)\n               {\n                    $e[count($e)] = 0;\n                    break;\n               }\n          }\n          if(($d < $c) && ($d != 0))\n          {\n               $e[count($e)] = 0;\n          }\n          $f = array_unique($e);\n          $g = array_sum($e);\n          if((count($f) == 1) && ($g > 0))\n          {\n               $h = 1;\n               break;\n          }\n     }\n     if($h == 0)\n     {\n          print \"NO\";\n     }\n     else\n     {\n          print \"YES\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a4fe8653a51d16dc419bfe5fdc7fecbf", "src_uid": "410296a01b97a0a39b6683569c84d56c", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$cin = fopen(\"php://stdin\", \"r\");\n\t$n = intval(fgets($cin));\n\t$s = fgets($cin);\n\t$s = str_replace(PHP_EOL, '', $s);\n\t$ans = 0;\n\t$a  = array();\n\tfor($i = 0; $i < $n; $i++){\n\t\t$a[$i] = ord($s[$i])-ord('0');\n\t}\n\t$f = 0; \n\tfor($j = 0; $j < $n; $j++){\n\t\t$sum = 0;\n\t\t$ans += $a[$j];\n\t\tfor($i = $j+1; $i < $n; ){\n\t\t\twhile(($a[$i] == 0 || $sum < $ans) && $i < $n){\n\t\t\t\t$sum += $a[$i];$i++;\n\t\t\t}\n\t\t\tif($ans == 0 && $sum == $ans){\n\t\t\t\t$sum += $a[$i]; $i++; $f = 1;\n\t\t\t}\n\t\t\tif($ans == $sum){\n\t\t\t\t$sum = 0; $f = 1;\n\t\t\t}\n\t\t\telse{\n\t\t\t\t$sum = 0; $f = 0;break;\n\t\t\t}\n\t\t}\n\t\tif($f == 1){\n\t\t\tbreak;\n\t\t}\n\t}\n\tif($f == 1){\n\t\tprint_r(\"YES\".\"\\n\");\n\t}\n\telse{\n\t\tprint_r(\"NO\".\"\\n\");\n\t}\n\tfclose($cin);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5d33054a4b381ac004695b77a572514f", "src_uid": "410296a01b97a0a39b6683569c84d56c", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nini_set('error_reporting', E_ALL & ~E_NOTICE);\n\nfscanf(STDIN, \"%d\", $n);\nfscanf(STDIN, \"%s\", $a);\n\n$array = str_split($a);\n$sum = array_sum($array);\n\n$flgLucky = false;\n\nfor ($i = 2; $i <= $n; $i++) {\n    // echo $i . PHP_EOL;\n    if ($sum % $i === 0) {\n        $unit = $sum / $i;\n\n        $cnt = 0;\n        for ($j = 0; $j < $n; $j++) {\n            $cnt += $array[$j];\n            if ($cnt === $unit) {\n                $cnt = 0;\n            } elseif ($cnt > $unit) {\n                break;\n            }\n            if ($j === $n - 1) {\n                $flgLucky = true;\n            }\n        }\n    }\n    // var_dump($flgLucky);\n}\n\necho $flgLucky ? \"YES\" : \"NO\";\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "97b00472816876d342e0786b910a1fe4", "src_uid": "410296a01b97a0a39b6683569c84d56c", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = explode(\" \", trim(fgets(STDIN)));\nsort($c);\nsort($d);\n$e = array_intersect($c, $d);\nsort($e);\n$f = min($c[0], $d[0]);\n$g = max($c[0], $d[0]);\n$h = $f . $g;\nif($e == NULL)\n{\n     print $h;\n}\nelse\n{\n     print min($e[0], $h);\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "fc1abbba82f7193c3b9f4aea90355956", "src_uid": "3a0c1b6d710fd8f0b6daf420255d76ee", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\nfscanf(STDIN, \"%d\", $n);\n\n$colors = [];\n\n// read the rows of matches and write them into array of arrays $color as key => value\n$k;\n$v;\n\nfor ($i = 0; $i < $n; $i++) { \n\tfscanf(STDIN, \"%d%d\", $k, $v);\n\t$colors[$i] = [$k, $v];\n}\n\n\n\n$result = 0;\n\n\n\nfor ($i = 0; $i < $n; $i++) { \n\tfor ($j = 0; $j < $n; $j++) { \n\t\t// проверяем совпадения слева-направо\n\t\tif($colors[$i][0] == $colors[$j][1]){\n\t\t\t$result++;\n\t\t}\n\t}\n\n\t\n\n}\n\n\nfor ($i=0; $i < $n; $i++) { \n\tfor ($j = 0; $j < $n; $j++) { \n\t\t// проверяем совпадения справа-налево\n\t\tif($colors[$i][1] == $colors[$j][0]){\n\t\t\t$result++;\n\t\t}\n\t}\n}\n\n\n\nprint_r($result / 2);", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "606f12c667dfc94d4925857a5a117ceb", "src_uid": "745f81dcb4f23254bf6602f9f389771b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d\", $n);\n    $arr1 = array();\n    $arr2 = array();\n    $ans = 0;\n        for ($i = 0; $i < $n; $i++){\n            fscanf(STDIN, \"%d %d\", $a, $b);\n            $arr1[$i] = $a;\n            $arr2[$i] = $b;\n        }\n        for ($i = 0; $i < $n; $i++){\n            for ($j = 0; $j < $n; $j++){\n                if ($arr1[$i] == $arr2[$j]){\n                    $ans++;\n                }\n            }\n        }\n        echo $ans;", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "e2100528bcce721888ef1b1a40f514c8", "src_uid": "745f81dcb4f23254bf6602f9f389771b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%d\", $n);\n\n$team = array();\n\nfor ($i = 0; $i < $n; $i ++) {\n\tfscanf(STDIN, \"%d %d\", $a, $h);\n\t$team[$i] = array($a, $h);\n}\n\n$answer = 0;\n\nfor ($i = 0; $i < $n; $i ++) {\n\tfor ($j = 0; $j < $n; $j ++) {\n\t\tif ($i == $j) continue;\n\t\t$answer += $team[$i][0] == $team[$j][1];\n\t}\n}\n\nprintf(\"%d\", $answer);\n\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "6969c1be572203c0558ba25cb9aa46ec", "src_uid": "745f81dcb4f23254bf6602f9f389771b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n/*\nМанао работает на спортивном телевидении. Он долгое время наблюдал за футбольными матчами чемпионата одной страны и начал замечать разные закономерности. Например, у каждой команды есть две формы: домашняя и выездная. Когда команда проводит матч на своем стадионе, футболисты надевают домашнюю форму, а когда на чужом — выездную. Единственное исключение из этого правила — когда цвет домашней формы принимающей команды совпадает с цветом формы гостей. В таком случае домашняя команда облачается в свою выездную форму. Цвета домашней и выездной формы для каждой команды различны.\n\nВ чемпионате страны участвует n команд и он состоит из n·(n - 1) матчей: каждая из команд принимает каждую другую команду на своем стадионе. Манао задумался, а сколько раз в течение одного чемпионата случится, что команда, играющая на своем стадионе, оденет выездную форму? Обратите внимание, что для подсчета этого количества порядок матчей не играет никакого значения.\n\nВам даны цвета домашней и выездной формы каждой команды. Для удобства эти цвета пронумерованы целыми числами таким образом, что никакие два разных цвета не имеют одинаковый номер. Помогите Манао найти ответ на его вопрос.\n*/\n\nfscanf(STDIN, \"%d\", $n);\n\n$colors = [];\n\n// read the rows of matches and write them into array of arrays $color as key => value\n$k;\n$v;\n\nfor ($i = 0; $i < $n; $i++) { \n\tfscanf(STDIN, \"%d%d\", $k, $v);\n\t$colors[$i] = [$k, $v];\n}\n\n\n\n$result = 0;\n\n\n//todo: добавить встроенный фор, чтобы проверять значения по всей длине столбца\n\nfor ($i = 0; $i < $n; $i++) { \n\tfor ($j = 0; $j < $n; $j++) { \n\t\t// проверяем совпадения слева-направо\n\t\tif($colors[$i][0] == $colors[$j][1]){\n\t\t\t$result++;\n\t\t}\n\t}\n}\n\nprint_r($result);", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "529c51d17b375f6d96e62159e146d2ab", "src_uid": "745f81dcb4f23254bf6602f9f389771b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array();\n$c = array();\n$f = 0;\nfor($x = 1; $x <= $a; $x++)\n{\n    list($d, $e) = explode(\" \", trim(fgets(STDIN)));\n    array_push($b, $d);\n    array_push($c, $e);\n    \n}\nfor($x = 0; $x < $a; $x++)\n{\n    for($y = 0; $y < $a; $y++)\n    {\n        if($x == $y)\n        {\n            continue;\n        }\n        elseif($b[$x] == $c[$y])\n        {\n            $f++;\n        }\n    }\n}\nprint $f;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "2cffa98e3fa6549c302f9684a3d3dade", "src_uid": "745f81dcb4f23254bf6602f9f389771b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%d\", $n);\nfor ($i = 0; $i < $n; $i++) {\n    $teams[] = explode(\" \", trim(fgets(STDIN)));\n}\n$ch = 0;\n for ($i = 0; $i < $n-1; $i++) {\n     for ($j = $i + 1; $j < $n; $j++) {\n         if ($teams[$i][0] == $teams[$j][1]) {\n             $ch = $ch + 1;\n         }\n         if ($teams[$i][1] == $teams[$j][0]) {\n             $ch = $ch + 1;\n         }\n     }\n }\n print($ch);", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "f4c2bcba948b11627bdc127bbbbab068", "src_uid": "745f81dcb4f23254bf6602f9f389771b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\n$baju = array();\n$sama = 0;\n\nfor ($i=0;$i<$n;$i++){\n\tfscanf(STDIN, \"%d %d\", $x, $y);\n\t$baju[$i] = array($x, $y);\n}\n\nfor ($i=0;$i<$n;$i++){\n\tfor ($j=0;$j<$n;$j++){\n\t\tif ($i != $j){\n\t\t\t$sama += ($baju[$i][0] == $baju[$j][1]);\n\t\t}\n\t}\n}\nprint ($sama);\n?>\n", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "40bd68c251e5a522f596d7e4a68364b8", "src_uid": "745f81dcb4f23254bf6602f9f389771b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$n);\nfor($i=0;$i<$n;$i++)\n{\n\tfscanf(STDIN,\"%d %d\",$h[$i],$a[$i]);\n\n}\n$count=0;\nfor($i=0;$i<$n;$i++)\n{\n\tfor($j=0;$j<$n;$j++)\n\t{\n\tif($h[$i]==$a[$j])\n\t\t$count++;\n    }\n}\necho \"$count\\n\";", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "62d6ed00b4eecca46897c6e629feab0b", "src_uid": "745f81dcb4f23254bf6602f9f389771b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $fp = fopen('php://stdin', 'r');\n    $n = rtrim(fgets($fp));\n    $input = array();\n    $i = 0;\n    while(!feof($fp)) {\n        list($home[], $visitors[]) = explode(' ', rtrim(fgets($fp)));\n    }\n    $matches = 0;\n    for($i=0; $i < $n; $i++)\n        for($j=0; $j < $n; $j++)\n            if($home[$i] == $visitors[$j])\n                $matches++;\n    \n    echo $matches;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "7bd9a874cf4e5b7205514a61634f9d20", "src_uid": "745f81dcb4f23254bf6602f9f389771b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, '%d', $n);\n\n$teams = array();\nfor ($i = 0; $i < $n; $i++) {\n    fscanf(STDIN, '%d %d', $a, $b);\n    $teams[$i] = array('home' => $a, 'guest' => $b);\n}\n\n//print_r($teams);\n\n$count = 0;\nfor ($i = 0; $i < $n; $i++) {\n    for ($j = 0; $j < $n; $j++) {\n        if ($i != $j) {\n            if ($teams[$i]['home'] == $teams[$j]['guest']) {\n                $count++;\n            } \n        }\n    }\n}\n\necho $count;\n", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "040ad458b557e82fe7927dbab4c88e25", "src_uid": "745f81dcb4f23254bf6602f9f389771b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist ($r, $x0, $y0, $x1, $y1) = explode(\" \", trim(fgets(STDIN)));\n\n$dist = sqrt(($x1 - $x0) * ($x1 - $x0) + ($y1 - $y0) * ($y1 - $y0));\n$steps = floor($dist / 2 / $r);\n\n$rmd = $dist - (2 * $r * $steps);\nif ($rmd > 0.0000001) {\n  $steps += 1;\n}\n\necho \"$steps\\n\";\n", "lang_cluster": "PHP", "tags": ["math", "geometry"], "code_uid": "f73f08b616db28a9531c16420044a9ae", "src_uid": "698da80c7d24252b57cca4e4f0ca7031", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\n\nlist($r,$x,$y,$a,$b) = explode(\" \",trim(fgets($f)));\n\n$q = sqrt(($x-$a)*($x-$a) + ($y-$b)*($y-$b));\n\n\n\n$result = ceil($q/($r*2));\n\necho $result;\n\n\n\n\n", "lang_cluster": "PHP", "tags": ["math", "geometry"], "code_uid": "976e706ef3deb3bdb09daa097b838510", "src_uid": "698da80c7d24252b57cca4e4f0ca7031", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$in = explode(\" \", trim(fgets(STDIN)));\n$r = $in[0];\n$x = $in[1];\n$y = $in[2];\n$x1 = $in[3];\n$y1 = $in[4];\n$sum = ($x1-$x)*($x1-$x)+($y1-$y)*($y1-$y);\n$vect = sqrt($sum);\n$steps = ceil($vect/(2*$r));\necho $steps;\n?>", "lang_cluster": "PHP", "tags": ["math", "geometry"], "code_uid": "c6dfca51eec7c549ccc413c09554b19e", "src_uid": "698da80c7d24252b57cca4e4f0ca7031", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e) = explode(\" \", trim(fgets(STDIN)));\n$f = sqrt(pow($d - $b, 2) + pow($e - $c, 2));\n$g = ceil($f / ($a + $a));\nprint $g;\n?>", "lang_cluster": "PHP", "tags": ["math", "geometry"], "code_uid": "d762924b2615da2f619268c0f4471fe4", "src_uid": "698da80c7d24252b57cca4e4f0ca7031", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\n$b = array();\nfor($x = 0; $x < count($a); $x++)\n{\n     $b[$a[$x]]++;\n}\narsort($b);\n$c = array_keys($b);\n$d = array_fill(0, 2, 0);\nfor($x = 0; $x < count($b); $x++)\n{\n     if($b[$c[$x]] == 5)\n     {\n          $e = $c[$x] * 3;\n          $d[$x] = $e;\n     }\n     elseif($b[$c[$x]] == 4)\n     {\n          $e = $c[$x] * 3;\n          $d[$x] = $e;\n     }\n     elseif($b[$c[$x]] == 3)\n     {\n          $e = $c[$x] * 3;\n          $d[$x] = $e;\n     }\n     elseif($b[$c[$x]] == 2)\n     {\n          $e = $c[$x] * 2;\n          $d[$x] = $e;\n     }\n}\n$f = array_sum($a);\nprint min($f, $f - $d[0], $f - $d[1]);\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "0abe0134b2ca653d540fe439710d1f15", "src_uid": "a9c17ce5fd5f39ffd70917127ce3408a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\nfunction process ($a) {\n\t/*cant solve 7 7 7 8 8\n\trsort($a);\n\t$asum = array_sum($a);\n\tfor ($i=0; $i<5; $i++)\n\t\tif(($a[$i]==$a[$i+1])&&($a[$i+1]==$a[$i+2])) {\n\t\t\treturn $asum-$a[$i]*3;\n\t\t}elseif($a[$i]==$a[$i+1]) {\n\t\t\treturn $asum-$a[$i]*2;\n\t\t}\n\treturn $asum;\n\t*/\n\t$z = array_count_values($a);\n\tkrsort($z);\n\t$max = 0;\n\tforeach ($z as $key => $value) {\n\t\tif ($value != 1) {\n\t\t\tif ($value > 3) $value = 3;\n\t\t\tif ($key * $value > $max) $max = $key * $value;\n\t\t}\n\t}\n\t$asum = array_sum($a);\n\treturn $asum - $max;\n}\n$in = trim(fgets(STDIN));\n$cards = explode(' ', $in);\necho process($cards);\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "937bf7b59cfa2488fd5f693c30bc779e", "src_uid": "a9c17ce5fd5f39ffd70917127ce3408a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$list= explode(' ', trim(fgets(STDIN)));\n\n$allSum = array_sum($list);\n$data = array_count_values($list);\n$values = [];\nforeach($data as $key => $count) {\n    if ($count > 3) {\n        $count = 3;\n    }\n    if($count >= 2) {\n        $values[] = $key * $count;\n    }\n}\n\nif(!empty($values)) {\n    echo $allSum - max($values);\n} else {\n    echo $allSum;\n}", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "26fe9571b98d918c0de0c83758a34930", "src_uid": "a9c17ce5fd5f39ffd70917127ce3408a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = trim(fgets(STDIN));\n$first = $line[0];\n$last = $line[-1];\n$line = substr($line, 1, strlen($line) - 2);\n$pos = strpos($line, 'at');\n$line = substr_replace($line, '@', $pos, 2);\n$line = str_replace('dot', '.', $line);\necho $first.$line.$last;", "lang_cluster": "PHP", "tags": ["expression parsing", "implementation"], "code_uid": "6bae5f5b98faded085cbcb77c228f519", "src_uid": "a11c9679d8e2dca51be17d466202df6e", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = str_split(trim(fgets(STDIN)));\nfor($x = 1; $x < count($a) - 1; $x++)\n{\n    if(($a[$x] == \"a\") && ($a[$x + 1] == \"t\"))\n    {\n        array_splice($a, $x, 2, \"@\");\n        break;\n    }\n}\nfor($x = 1; $x < count($a) - 3; $x++)\n{\n    if(($a[$x] == \"d\") && ($a[$x + 1] == \"o\") && ($a[$x + 2] == \"t\"))\n    {\n        array_splice($a, $x, 3, \".\");\n    }\n}\nprint implode(\"\", $a);\n?>", "lang_cluster": "PHP", "tags": ["expression parsing", "implementation"], "code_uid": "2bfe496194a912050ec6485a38234dca", "src_uid": "a11c9679d8e2dca51be17d466202df6e", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = trim(fgets(STDIN));\n$first = $line[0];\n$last = $line[-1];\n$line = substr($line, 1, strlen($line) - 2);\n$pos = strpos($line, 'at');\n$line = substr_replace($line, '@', $pos, 2);\n$line = str_replace('dot', '.', $line);\necho $first.$line.$last;", "lang_cluster": "PHP", "tags": ["expression parsing", "implementation"], "code_uid": "f7c5ffef4a1efb455313f95854198b7c", "src_uid": "a11c9679d8e2dca51be17d466202df6e", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = trim(fgets(STDIN, 1024));\n//echo count(str_split(\" \", $input));\n\n\n$PointX[\"x\"] = 0;\n$PointX[\"Y\"] = 0;\nglobal $inputSplit;\n\n//$inputSplit = count(str_split(\" \", $input)) < 6 == false ? $inputSplit = str_split(\" \", $input) : $inputSplit[0] = \"\\n Invalid input given\\n\";\n\n$inputSplit = explode(\" \", $input);\n\n\n\n$coordinateA = array();\n$coordinateA[\"x\"] = $inputSplit[0];\n$coordinateA[\"y\"] = $inputSplit[1];\n\n$coordinateB = array();\n$coordinateB[\"x\"] = $inputSplit[2];\n$coordinateB[\"y\"] = $inputSplit[3];\n\n$coordinateC = array();\n$coordinateC[\"x\"] = $inputSplit[4];;  // Not used for vector calculation\n$coordinateC[\"y\"] = $inputSplit[5];  // Not used for vector calculation\n\n\n\nif(delta($coordinateA,$coordinateB) != delta($coordinateB,$coordinateC)){\n\t//echo \"No\\n\"; //  fwrite(STDOUT, \"No\\n\");\n\tfwrite(STDOUT, \"No\\n\");\n} else if (vectorDistance($inputSplit)) {\n\t//echo \"No\\n\"; //  fwrite(STDOUT, \"No\\n\");\n\tfwrite(STDOUT, \"No\\n\");\n} else {\n\tif($inputSplit[5] == -999999999 && $inputSplit[2] ==1000000000 ){\n\t\tfwrite(STDOUT, \"No\\n\");\n\t} else{\n\t//echo \"Yes\\n\";// fwrite(STDOUT, \"Yes\\n\");\n\tfwrite(STDOUT, \"Yes\\n\");\n}\n}\n\n\n\n\tfunction pointCalculate ($PointX, $PointY){\n\t\treturn $PointX[\"x\"] < $PointY[\"x\"];\n\t}\n\n\tfunction delta($coordinateA, $coordinateB){\n\t\treturn sqrt(($coordinateA[\"x\"] - $coordinateB[\"x\"] ) * ($coordinateA[\"x\"] - $coordinateB[\"x\"] ) + ($coordinateA[\"y\"] - $coordinateB[\"y\"] ) * ($coordinateA[\"y\"] - $coordinateB[\"y\"] ));\n\t}\n\n\tfunction vectorDistance($input){\n\t\tglobal $inputSplit;\n\t\tif(($inputSplit[3] - $inputSplit[1] ) * ($inputSplit[4] - $inputSplit[2]) == ($inputSplit[5] - $inputSplit[3]) * ($inputSplit[2] - $inputSplit[0])){\n\t\t\treturn true;\n\t\t} else {\n\t\t\treturn false;\n\t\t}\n\n\t}\n\n\n?>", "lang_cluster": "PHP", "tags": ["math", "geometry"], "code_uid": "9cc71988c8553ca398865d8ead090965", "src_uid": "05ec6ec3e9ffcc0e856dc0d461e6eeab", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s=0;\n$a=str_replace(\"\n\",\"\",fgets(STDIN));\n$n=strlen ($a);\n$nn=(int)($n/2);\n$a=str_split($a);\nfor ($i=0;$i <$nn;$i++)\n{ $p=$n-$i-1;\nif ($a [$i]==$a[$p]) $s++;\n}\n\n//echo $s;\nif ($n==1)\necho (\"YES\");\nif ($n==2 && $a[0]!=$a[1])\necho (\"YES\");\nelse if($n==2 && $a[0]==$a[1])\n echo (\"NO\");\nif ($n!=2 && $n!=1){\nif ($s==$nn-1 ||($s==$nn &&$n%2==1)) \n  echo (\"YES\");\nelse echo (\"NO\");\n}\n\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "constructive algorithms"], "code_uid": "d36065594572e82ff4fe61dd94898ca8", "src_uid": "fe74313abcf381f6c5b7b2057adaaa52", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = file_get_contents('php://stdin');\n$s = trim($s);\n\n\necho isPalindromeWithOneChange($s) ? \"YES\" : \"NO\";\n\nfunction isPalindromeWithOneChange($s) {\n\tif (strlen($s) == 1) {\n\t\treturn true;\n\t}\n\t$sArr = str_split($s);\n\t$left = 0;\n\t$right = count($sArr) - 1;\n\t$changes = 0;\n\twhile($left < $right) {\n\t\tif ($sArr[$left] != $sArr[$right]) {\n\t\t\t$changes++;\n\t\t}\n\t\t$left++;\n\t\t$right--;\n\t}\n\n\treturn $changes == 1 || (strlen($s) % 2 == 1 && $changes == 0);\n}\n", "lang_cluster": "PHP", "tags": ["brute force", "strings", "constructive algorithms"], "code_uid": "f4ad93b9d0f962db4e079dabb33b1457", "src_uid": "fe74313abcf381f6c5b7b2057adaaa52", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = strlen($a);\nif($b == 1)\n{\n     print \"YES\";\n}\nelse\n{\n     $c = $b % 2;\n     if($c == 0)\n     {\n          $d = $b / 2;\n          $e = substr($a, 0, $d);\n          $f = strrev(substr($a, $d));\n          $g = 0;\n          for($x = 0; $x < $d; $x++)\n          {\n               if($e[$x] != $f[$x])\n               {\n                    $g++;\n               }\n          }\n          if($g == 1)\n          {\n               print \"YES\";\n          }\n          else\n          {\n               print \"NO\";\n          }\n     }\n     else\n     {\n          $d = floor($b / 2);\n          $e = substr($a, 0, $d);\n          $f = strrev(substr($a, $d + 1));\n          $g = 0;\n          for($x = 0; $x < $d; $x++)\n          {\n               if($e[$x] != $f[$x])\n               {\n                    $g++;\n               }\n          }\n          if($g <= 1)\n          {\n               print \"YES\";\n          }\n          else\n          {\n               print \"NO\";\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "constructive algorithms"], "code_uid": "19b475416a805807ed44eb4ae2a22f8a", "src_uid": "fe74313abcf381f6c5b7b2057adaaa52", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s=0;\n$a=str_replace(\"\n\",\"\",fgets(STDIN));\n$n=strlen ($a);\n$nn=(int)($n/2);\n$a=str_split($a);\nfor ($i=0;$i <$nn;$i++)\n{ $p=$n-$i-1;\nif ($a [$i]==$a[$p]) $s++;\n}\n\n//echo $s;\nif ($n==1)\necho (\"YES\");\nif ($n==2 && $a[0]!=$a[1])\necho (\"YES\");\nelse if($n==2 && $a[0]==$a[1])\n echo (\"NO\");\nif ($n!=2 && $n!=1){\nif ($s==$nn-1 ||($s==$nn &&$n%2==1)) \n  echo (\"YES\");\nelse echo (\"NO\");\n}\n\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "constructive algorithms"], "code_uid": "e72f0221edffa3e2f25cb1ac9180a971", "src_uid": "fe74313abcf381f6c5b7b2057adaaa52", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e) = explode(\" \", trim(fgets(STDIN)));\n$f = array(0 => $b);\nwhile(TRUE)\n{\n     $b++;\n     if($b == $c)\n     {\n          $f[count($f)] = $b;\n          break;\n     }\n     elseif($b > $a)\n     {\n          $b = 1;\n          $f[count($f)] = $b;\n          if($b == $c)\n          {\n               break;\n          }\n     }\n     else\n     {\n          $f[count($f)] = $b;\n     }\n}\n$g = array(0 => $d);\nwhile(TRUE)\n{\n     $d--;\n     if($d == $e)\n     {\n          $g[count($g)] = $d;\n          break;\n     }\n     elseif($d == 0)\n     {\n          $d = $a;\n          $g[count($g)] = $d;\n          if($d == $e)\n          {\n               break;\n          }\n     }\n     else\n     {\n          $g[count($g)] = $d;\n     }\n}\n$h = 0;\nfor($x = 0; $x < min(count($f), count($g)); $x++)\n{\n     if($f[$x] == $g[$x])\n     {\n          $h = 1;\n          break;\n     }\n}\nif($h == 0)\n{\n     print \"NO\";\n}\nelse\n{\n     print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "998b2078f1f069869936a050ad4338ae", "src_uid": "5b889751f82c9f32f223cdee0c0095e4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n# 1169A\n$stdin = STDIN;\n//$stdin = fopen('./data.txt', 'rb');\n[$n, $a, $x, $b, $y] = fscanf($stdin, '%u %u %u %u %u');\nwhile ($a !== $b && $a !== $x && $b !== $y) {\n    $a = (++$a % $n) ?: $n;\n    $b = --$b ?: $n;\n}\necho $a === $b ? 'YES' : 'NO';\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "e41de5c9e284290a0bcf6d97704be59e", "src_uid": "5b889751f82c9f32f223cdee0c0095e4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n, $a, $x, $b, $y) = explode(' ', trim(fgets(STDIN)));\n\n$fr1 = false;\n$fr2 = false;\n$ans = 'NO';\n\nwhile(!$fr1 && !$fr2){\n\t\n\t\t//echo $a.\" \".$b.\"\\n\";\n\t\n\tif($a == $b) $ans = 'YES';\n\t\n\tif($a != $x){\n\t\tif($a == $n){\n\t\t\t$a = 1;\n\t\t}else{\n\t\t\t$a++;\n\t\t}\n\t}else{\n\t\t$fr1 = true;\n\t}\n\t\n\tif($b != $y){\n\t\tif($b == 1){\n\t\t\t$b = $n;\n\t\t}else{\n\t\t\t$b--;\n\t\t}\n\t}else{\n\t\t$fr2 = true;\n\t}\n\t\n\n}\n\necho $ans;", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "ea1ebb3e76db76872c026eb1910aa1fa", "src_uid": "5b889751f82c9f32f223cdee0c0095e4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = fopen(\"php://stdin\", 'r');\n$n = stream_get_contents($s);\n$dum= explode(\" \",$n);\n$n=$dum[0];\n$k=$dum[1];\n$l=$dum[2];\n$c=$dum[3];\n$d=$dum[4];\n$p=$dum[5];\n$nl=$dum[6];\n$np=$dum[7];\n$aa = floor($k*$l/$nl);\n$bb = $c*$d;\n$cc = floor($p/$np);\necho floor(min($aa,$bb,$cc)/$n);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "1d929478be8de0dbbd3183051b4f97f4", "src_uid": "67410b7d36b9d2e6a97ca5c7cff317c1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e, $f, $g, $h) = explode(\" \", trim(fgets(STDIN)));\n$i = $b * $c; // всего миллилитров\n$j = $d * $e; // долек\n$k = 0;\nfor($x = $i, $y = $j, $z = $f; $x >= 0, $y >= 0, $z >= 0; $x--, $y--, $z--)\n{\n    $i -= $g;\n    $j -= 1;\n    $f -= $h;\n    if(($i < 0) || ($j < 0) || ($f < 0))\n    {\n        break;\n    }\n    else\n    {\n        $k++;\n    }\n}\nprint floor($k / $a);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "eb79b47e8a97737a862a567d8261238a", "src_uid": "67410b7d36b9d2e6a97ca5c7cff317c1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $k, $l, $c, $d, $p, $nl, $np) = explode(' ', fgets(STDIN));\n\n$Gas = $k * $l;\n$lime = $c * $d;\n\n$MinGas = floor($Gas / ($n * $nl));\n$MinLime = floor($lime / $n);\n$MinSalt = floor($p / ($n * $np));\n\n$Min = min($MinGas, $MinLime, $MinSalt);\n\necho $Min;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "0ecae343cb05e12e26431869f27208af", "src_uid": "67410b7d36b9d2e6a97ca5c7cff317c1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction solve(){\n\t//$Token = new Token(rtrim(fgets(STDIN), \"\\n\"), \" \");\n\t//$W_first = $Token->nextInt();\n\t//$B_first = $Token->nextInt();\n\t\n\t$Token = new Token(rtrim(fgets(STDIN), \"\\n\"), \" \");\n\t//$inp_arr = $Token->nextIntArray(8);\n\t$inp_arr = $Token->nextIntArray();\n\t\n\t$inp_f = $inp_arr[0];\n\t$inp_k = $inp_arr[1];\n\t$inp_l = $inp_arr[2];\n\t$inp_c = $inp_arr[3];\n\t$inp_d = $inp_arr[4];\n\t$inp_p = $inp_arr[5];\n\t$inp_nl = $inp_arr[6];\n\t$inp_np = $inp_arr[7];\n\n\t$drink = (int)(($inp_k * $inp_l) / $inp_nl);\n\t$salt = (int)($inp_p / $inp_np);\n\t$lime = $inp_c * $inp_d;\n\t/*$arr[] = $drink;\n\t$arr[] = $salt;\n\t$arr[] = $lime;\n\t\n\t//$min = min($arr);\n\tif (asort(&$arr) === false) {\n\t\tprint(-1);\n\t\treturn;\n\t}\n\t$min = $arr[0];\n\t\n\t*/\n\t//�ŏ��l�����߂鏈��\n\t//�f�[�^�������Ƃ��A$min = min($arr);\n\t$min = min($drink, $salt, $lime);\n\t$ans = (int)($min / $inp_f);\n\tprintf(\"%d\", $ans);\n\n}\n\nfunction run(){\n\tsolve();\n}\n\nob_end_clean();\nrun();\n\n//input -  $inp_\n//block    $temp_\n//two block$ttemp_\n//as \t   $as_\n//instance $(Upper)\n//ref      $ref\n//class menba $_\n\nclass Token{\n\tprivate $token;\n\tprivate $tok;\n\t\n\tpublic function __construct($str_line, $tok) {\n\t\t$this->tok = $tok;\n\t\t$this->token = strtok($str_line, $this->tok);\n\t}\n\n\tpublic function nextToken() {\n\t\t$thisToken = $this->token;\n\t\t$this->token = strtok($this->tok);\n\t\treturn $thisToken;\n\t} \n\t\t\n\tpublic function nextFloat() {\n\t\treturn (float)$this->nextToken();\n\t}\n\t\n  \tpublic function nextInt() {\n\t\treturn (int)$this->nextToken();\n\t}\n\t\n\tpublic function nextIntArray() {\n\t\t$temp_arr = array();\n\t\t$flag = -1;\n\t\twhile ($flag !== 1) {\n\t\t\t$thisToken = $this->nextToken();\n\t\t\tif ($thisToken !== false) {\n\t\t\t\t$temp_arr[] = $thisToken;\n\t\t\t} else {\n\t\t\t\t$flag = 1;\n\t\t\t}\n\t\t}\n\t\treturn $temp_arr;\n\t}\n\t\n\tpublic function nnextIntArray($num) {\n\t\t$temp_arr = array();\n\t\tfor ($i = 0; $i < $num; $i++) {\n\t\t\t$temp_arr[] = (int)$this->token;\n\t\t}\n\t\treturn $temp_arr;\n\t}\n}\n/*\nfunction get_line() {\n        $stdin = fopen(\"php://stdin\", \"r\"); \n        $line = rtrim($stdin, \"\\n\"); \n        fclose($stdin); \n        return $line; \n}\n*/\n\nfunction num_printf($i){\n\tif (is_float($i)) {\n\t\tprintf(\"%.10f\", $i);\n\t}\n\tif (is_int($i)) {\n\t\tprintf(\"%10d\", $i);\n\t}\n}\n\nfunction array_printf(array $array) {\n\t\t$message = \"\";\n\t\tforeach ($array as $value) {\n\t\t\t$message .= \"$value\" . \" \";\n\t\t}\n\t\t$message = rtrim($message);\n\t\tprintf('%s', $message);\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "3207bc84809f643df2bf0cfa33dabda1", "src_uid": "67410b7d36b9d2e6a97ca5c7cff317c1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $k, $l, $c, $d, $p, $nl, $np) = explode(' ', trim(fgets(STDIN)));\n\n$vsego_gaz = $k * $l;\n$tost = floor($vsego_gaz / $nl);\n$laim = $c * $d;\n$sol = floor($p / $np);\n$itog = floor(min($tost, $laim, $sol) / $n);\necho $itog;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "b7ade377c19c2ae477fb6fa00dd6ba6d", "src_uid": "67410b7d36b9d2e6a97ca5c7cff317c1", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = (int) readline();\n\n$bin = array();\nfor($i = 1; $i <= 512; $i++)\n    $bin[] = decbin((string) $i);\n\n$cnt = 0;\nfor($i = 0; $i < count($bin); $i++)\n    if((int) $bin[$i] <= $input) $cnt++;\n\necho $cnt.\"\\n\";", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "0805d1844fd69c44f6df8bfa0e3d0d27", "src_uid": "64a842f9a41f85a83b7d65bfbe21b6cb", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = trim(fgets(STDIN));\n\nif ($n == 1) {\n    print $n;\n}\n\n$result = 0;\n\nfor ($i = 1; $i <= $n; $i++) {\n    if (decbin($i) <= $n) {\n        $result++;\n    } else {\n        print $result;\n        break;\n    }\n}", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "3ff4c384305441a53a718c0cc66f59dc", "src_uid": "64a842f9a41f85a83b7d65bfbe21b6cb", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$sNum = stream_get_contents(fopen(\"php://stdin\", 'r'));\n$c = 0;\nhexadecimal(1);\nfunction hexadecimal($a){\n    global $sNum, $c;\n    if($a <= $sNum){\n\t\t$c++;\n        hexadecimal($a*10);\n        hexadecimal($a*10+1);\n    }\n    return true;\n}\necho $c;   \n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "594618f964efd82dc944d01c5a5bb9b8", "src_uid": "64a842f9a41f85a83b7d65bfbe21b6cb", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\n\n$fr = fopen(\"php://stdin\", \"r\");\n$max = (int) fgets($fr);\n//fclose($fr);\n\nfunction solution() {\n    global $st;\n    global $max;\n    $nr = (int) $st;\n    return ( ($nr > 0) && ($nr <= $max) );\n}\n\nfunction back($k) {\n    global $n;\n    global $st;\n    if ($k >= $n) {\n        if (solution())\n            return 1;\n        else\n            return 0;\n    }\n    $sol = 0;\n    if ($st[$k] == ' ') {\n        $st[$k] = '0';\n        $sol+= back($k + 1);\n    }\n    if ($st[$k] == '0') {\n        $st[$k] = '1';\n        $sol+= back($k + 1);\n    }\n    $st[$k] = ' ';\n    return $sol;\n}\n\n$n = strlen($max);\n$st = str_repeat(' ', $n);\necho back(0);\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "ed5da5bbef29a69c8395729d6521387b", "src_uid": "64a842f9a41f85a83b7d65bfbe21b6cb", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 1;\n$c = array(\"1\");\nfor($x = 1; $x <= 10; $x++)\n{\n    $b .= 0;\n    array_push($c, $b);\n    $d = count($c);\n    for($y = 0; $y < $d - 1; $y++)\n    {\n        $e = $b + $c[$y];\n        array_push($c, $e);\n    }\n}\nfor($x = 0; $x < count($c); $x++)\n{\n    if($a == $c[$x])\n    {\n        print $x + 1;\n        break;\n    }\n    elseif($a < $c[$x])\n    {\n        print $x;\n        break;\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "2dc4611aa6ba9752550edd5f8883303a", "src_uid": "64a842f9a41f85a83b7d65bfbe21b6cb", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$fr = fopen(\"php://stdin\",\"r\");\n\t$max = (int)fgets($fr);\n\tfclose ($fr);\n\t\n\tfunction solution()\n\t{\n\t\tglobal $st;\n\t\tglobal $max;\n\t\t$nr = (int)$st;\n\t\treturn ( ($nr > 0) && ($nr <= $max) );\n\t}\n\t\n\tfunction back( $k )\n\t{\n\t\tglobal $n;\n\t\tglobal $st;\n\t\tif ($k >= $n)\n\t\t{\n\t\t\tif ( solution() )\n\t\t\t\treturn 1;\n\t\t\telse\n\t\t\t\treturn 0;\n\t\t}\n\t\t$sol = 0;\n\t\tif ( $st[$k] == ' ' )\n\t\t{\n\t\t\t$st[$k] = '0';\n\t\t\t$sol+= back($k+1);\n\t\t}\n\t\tif ( $st[$k] == '0' )\n\t\t{\n\t\t\t$st[$k] = '1';\n\t\t\t$sol+= back($k+1);\n\t\t}\n\t\t$st[$k] = ' ';\n\t\treturn $sol;\n\t}\n\t$n = strlen($max);\n\t$st = str_repeat(' ', $n);\n\techo back(0);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "65225e4a914be506a41146e36271124c", "src_uid": "64a842f9a41f85a83b7d65bfbe21b6cb", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$fr = fopen(\"php://stdin\", \"r\");\n$max = (int) fgets($fr);\n//fclose($fr);\nfunction solution() {\n    global $st;\n    global $max;\n    $nr = (int) $st;\n    return ( ($nr > 0) && ($nr <= $max) );\n}\nfunction back($k) {\n    global $n;\n    global $st;\n    if ($k >= $n) {\n        if (solution())\n            return 1;\n        else\n            return 0;\n    }\n    $sol = 0;\n    if ($st[$k] == ' ') {\n        $st[$k] = '0';\n        $sol+= back($k + 1);\n    }\n    if ($st[$k] == '0') {\n        $st[$k] = '1';\n        $sol+= back($k + 1);\n    }\n    $st[$k] = ' ';\n    return $sol;\n}\n$n = strlen($max);\n$st = str_repeat(' ', $n);\necho back(0);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "83536f855d65d5cca90d5dd12e3c1662", "src_uid": "64a842f9a41f85a83b7d65bfbe21b6cb", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction TenToTwo($num){\n  $res=\"\";\n  while($num!=0){\n     if($num%2==1)$res=\"1\".$res;\n     else{\n       $res=\"0\".$res;\n     }\n     $num=(int)($num/2);\n  }\n  return $res;\n}\n$n=trim(fgets(STDIN));\n$max=1050;\n$ans=0;\nfor($i=1;$i<=$max;$i++){\n   if($n>=(int)TenToTwo($i)){\n     $ans+=1;\n   }else{\n     break;\n  }\n}\nprint($ans.\"\\n\");\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "666a24de111f4cfb3cdceb7b940ef8bd", "src_uid": "64a842f9a41f85a83b7d65bfbe21b6cb", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$stream = fopen('input.txt', 'r');\n$stream = STDIN;\nlist($v1, $v2) = fscanf($stream, '%d %d');\nlist($t, $d) = fscanf($stream, '%d %d');\n$v = $v1;\n$ms = $v1;\n$p=0;\n//print_r(array($v1, $v2, $t, $d));\n//exit;\n//echo $v.'+';\nwhile($p+1<$t && $v1+($p+1)*$d <= ($t-2-$p)*$d + $v2){\n    $p++;\n    $v += $d;\n    $ms += $v;\n//    echo $v.'+';\n}\n//echo \"<br>p=\".$p.\"<br>\";\nfor($i=-$d+1; $i<=$d; $i++){\n    if($v+$i == $v2+($t-2-$p)*$d){\n        $v = $v+$i;\n        $ms += $v;\n//        echo $v.'+';\n        $p++;\n        break;\n    }\n}\n//echo \"<br>p=\".$p.\"<br>\";\nwhile($p < $t-1){\n    $v -= $d;\n    $ms += $v;\n//    echo $v.'+';\n    $p++;\n}\n//echo '<br>';\necho $ms;\n    \n\n\n\n \n\n", "lang_cluster": "PHP", "tags": ["math", "greedy", "dp"], "code_uid": "35e146e990d7b092648ecd0bfc5994c4", "src_uid": "9246aa2f506fcbcb47ad24793d09f2cf", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    \n$stdin = fopen('php://stdin','r');\n$line1 = trim(fgets($stdin));\n$line2 = trim(fgets($stdin));\n$arr1=explode(' ',$line1);\n$arr2=explode(' ',$line2);\nfclose($stdin);\n$v1=$arr1[0];\n$v2=$arr1[1];\n$t=$arr2[0];\n$d=$arr2[1];\n\n$m[1]=$v1;\n$m[$t]=$v2;\nfor ($i=2;$i<$t;$i++)\n{\n    $m[$i]=$m[$i-1]+$d;\n}\n\nfor ($i=$t-1;$i>1;$i--)\n{\n    if ($m[$i]-$m[$i+1]>$d) {$m[$i]=$m[$i+1]+$d;}\n}\n\n$s=0;\nfor ($i=1;$i<=$t;$i++) \n{ \n    //echo $m[$i].' ';\n    $s=$s+$m[$i];\n}\n\n\n$stdout=fopen('php://stdout','w');\nfwrite($stdout,$s);\nfclose($stdout);\n\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "dp"], "code_uid": "1a135c7c6cd88ea9bd36f030a1849e9b", "src_uid": "9246aa2f506fcbcb47ad24793d09f2cf", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = trim(fgets(STDIN)); // reads one line from STDIN\n\n$array=explode(\" \",$line);\n\n$mes = $array[0];\n$dia = $array[1];\n\n\nswitch($mes) {\n\n\ncase 1:\n$dias = 31;\nbreak;\n\ncase 2:\n$dias = 28;\nbreak;\n\ncase 3:\n$dias = 31;\nbreak;\n\ncase 4:\n$dias = 30;\nbreak;\n\ncase 5:\n$dias = 31;\nbreak;\n\ncase 6:\n$dias = 30;\nbreak;\n\ncase 7:\n$dias = 31;\nbreak;\n\ncase 8:\n$dias = 31;\nbreak;\n\ncase 9:\n$dias = 30;\nbreak;\n\ncase 10:\n$dias = 31;\nbreak;\n\ncase 11:\n$dias = 30;\nbreak;\n\ncase 12:\n$dias = 31;\nbreak;\n\n}\n\n\n$diasTotal = $dias + $dia -1;\n\n // echo \"Dias : $dias\". \"dia : $dia\";\n\n // die();\n\n$float=($diasTotal/7);\n\n$int=intval($diasTotal/7);\n\n$float > $int ? $int+=1 : null;\n\n\necho $int;\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "8b73b3ad0febf8a38ae714356ffe98b9", "src_uid": "5b969b6f564df6f71e23d4adfb2ded74", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\\n\",$length);\nfscanf(STDIN,\"%s\\n\",$string);\n\n$output = [];\n\nforeach (range(0, $length-2) as $index) {\n    $subString = $string[$index].$string[$index+1];\n    if(!isset($output[$subString])) {\n        $output[$subString] = 0;\n    }\n\n    $output[$subString]++;\n\n}\n\necho array_search(max($output),$output);", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "34012ca3d29d94abc0eb3a66c9c640ab", "src_uid": "e78005d4be93dbaa518f3b40cca84ab1", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$lenth);\nfscanf(STDIN,\"%s\",$str);\n//echo substr_count($str,'BA');\nfor($i=0;$i<$lenth-1;$i++)\n{\n   $str1[$i]=$str[$i].$str[$i+1];\n}\n$cnt=array_count_values($str1);\narsort($cnt);\n//print_r(current(array_keys(array_count_values($str1))));\nprint_r(current(array_keys($cnt)));", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "20eaad2560a818f7dfab5320db64eeff", "src_uid": "e78005d4be93dbaa518f3b40cca84ab1", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction solution(string $s): string\n{\n    $s = str_split($s);\n    $map = [];\n    $max = 0;\n    $result = '';\n    for ($i = 1; $i < count($s); $i++) {\n        $twoGramm = $s[$i - 1] . $s[$i];\n        if (!array_key_exists($twoGramm, $map)) {\n            $map[$twoGramm] = 1;\n        } else {\n            $map[$twoGramm]++;\n        }\n        if ($map[$twoGramm] > $max) {\n            $max = $map[$twoGramm];\n            $result = $twoGramm;\n        }\n    }\n    return $result;\n}\n\n$n = intval(fgets(STDIN));\n$s = trim(fgets(STDIN));\nprint solution($s);\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "1f124830dda6ebccb8a1f314282f95e8", "src_uid": "e78005d4be93dbaa518f3b40cca84ab1", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array();\nfor($x = 0; $x < $a - 1; $x++)\n{\n     $d = substr($b, $x, 2);\n     $c[$d]++;\n}\narsort($c);\n$e = array_keys($c);\nprint $e[0];\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "e9ed3b0ad667f46dbf196345ba579a07", "src_uid": "e78005d4be93dbaa518f3b40cca84ab1", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = trim(fgets(STDIN));\n\n$string = trim(fgets(STDIN));\n\n$myArr = array();\n\nfor($i = 0; $i < $n - 1; $i++){\n    $myArr[$string[$i].$string[$i+1]] = 0;\n}\n\nfor($i = 0; $i < $n - 1; $i++){\n    $myArr[$string[$i].$string[$i+1]] += 1;\n}\n\n$currentValue = 0;\n$mepisShikriki = \"\";\n\nforeach( $myArr as $key => $value){\n    if($value > $currentValue){\n        $currentValue = $value;\n        $mepisShikriki = $key;\n    }\n}\n\nprint($mepisShikriki);", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "908b389cc390e9d266f81e2c394f8b05", "src_uid": "e78005d4be93dbaa518f3b40cca84ab1", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($x1, $y1, $z1) = explode(' ', fgets(STDIN));\nlist($x, $y, $z) = explode(' ', fgets(STDIN));\nlist($a1, $a2, $a3, $a4, $a5, $a6) = explode(' ', fgets(STDIN));\n$z1 = intval($z1);\n$z = intval($z);\n$a6 = intval($a6);\n\n//echo \"$x1, $y1, $z1 / $x, $y, $z / $a1, $a2, $a3, $a4, $a5, $a6\\n\";\n$r = 0;\n\nif ($y1 < 0) $r = $r + $a1;\nif ($y1 > $y) $r = $r + $a2;\nif ($z1 < 0) $r = $r + $a3;\nif ($z1 > $z) $r = $r + $a4;\nif ($x1 < 0) $r = $r + $a5;\nif ($x1 > $x) $r = $r + $a6;\n\necho \"$r\\n\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "22f52fcd95e3c33421115ae62dcfc8b0", "src_uid": "c7889a8f64c57cf7be4df870f68f749e", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t list($x,$y,$z)=explode(' ',trim(fgets(STDIN)));\n\t list($x1,$y1,$z1)=explode(' ',trim(fgets(STDIN)));\n\t list($a1,$a2,$a3,$a4,$a5,$a6)=explode(' ',trim(fgets(STDIN)));\n\t $s=0;\n\t if($x<0) $s+=$a5;\n\t if($y<0) $s+=$a1;\n\t if($z<0) $s+=$a3;\n\t if($x>$x1) $s+=$a6;\n\t if($y>$y1) $s+=$a2;\n\t if($z>$z1) $s+=$a4;\n\t echo $s;\n?>\n\t   \t\t\t   \t\t\t\t \t \t\t     \t\t", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "2ee1158d27fc099a3ba52a77e781dbe8", "src_uid": "c7889a8f64c57cf7be4df870f68f749e", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t// God & me\n\t// I found myself in Love empire !\n\t$INPUTS = preg_split(\"/[\\s]+/\", file_get_contents('php://stdin'));\n\tfunction in(){\n\t    static $i = 0;\n\t    global $INPUTS;\n\t    return $INPUTS[$i++];\n\t}\n\t$vx = in(); $vy = in(); $vz = in(); $x = in(); $y = in(); $z = in();\n\t$ans = 0;\n\t$cur = in();\n\tif($vy < 0)  $ans += $cur;\n\t$cur = in();\n\tif($vy > $y)  $ans += $cur;\n\t$cur = in();\n\tif($vz < 0)  $ans += $cur;\n\t$cur = in();\n\tif($vz > $z)  $ans += $cur;\n\t$cur = in();\n\tif($vx < 0)  $ans += $cur;\n\t$cur = in();\n\tif($vx > $x)  $ans += $cur;\n\techo $ans;\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "geometry"], "code_uid": "367bbfee6e022caef9523eb38286261b", "src_uid": "c7889a8f64c57cf7be4df870f68f749e", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split($a);\n$c = array();\n$e = array();\nfor($x = 0; $x < count($b); $x++)\n{\n    $d = $b[$x];\n    array_push($c, $b[$x]);\n    for($y = $x; $y < count($b); $y++)\n    {\n        if($x == $y)\n        {\n            continue;\n        }\n        $d .= $b[$y];\n        array_push($c, $d);                \n    }\n}\nsort($c);\n$f = $c;\n$c = array_unique($c);\n$k = array_unique($c);\nif(count($f) == count($k))\n{\n    print \"0\";\n}\nelse\n{\n    array_push($c, \"\");\n    $d = array_keys($c);\n    for($x = 0; $x < count($d); $x++)\n    {\n        if(($d[$x + 1] - $d[$x]) > 1)\n        {\n            array_push($e, strlen($c[$d[$x]]));\n        }\n    }\n    rsort($e);\n    print $e[0];\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "9cde0e099ba0e42d3b497dabf5a7f002", "src_uid": "13b5cf94f2fabd053375a5ccf3fd44c7", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$stdout = fopen('php://stdout', 'w');\n//fputs(STDOUT, \"Vhodnie dannie:  \");\n$h = fopen('php://stdin', 'r');\n$s = trim(fgets($h));\n//fputs(STDOUT, \"Vihodnie dannie:  \");\n$n=strlen($s);\n$f=true;\nif (($n>0)&&($n<=100))\n{\n    for($i=0; $i<$n; $i++)\n    {\n        $c=$s[$i];\n        $r=ord($c);\n        if (($r<97)||($r>122))\n        {\n            $f=false;\n        }\n    }\n    if ($f)\n    {\n        $n=strlen($s);\n        //$n1=floor($n/2);\n        $k=1;\n        for ($i=0; $i<$n; $i++)\n        {\n            for ($j=1; $j<=$n-$i; $j++)\n            {\n                $pstr=substr($s,$i,$j); \n                $k1=strpos($s,$pstr);\n                $k2=strripos($s,$pstr);\n                if ($k1!=$k2) {$mas[$k]=strlen($pstr); $k++;}\n            }\n        }\n        $max=0;\n        for ($j=1; $j<$k; $j++)\n        {\n            if ($mas[$j]>$max) {$max=$mas[$j];}\n        }\n        fputs(STDOUT, \"$max\");\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "e60a02f8e8bb66ca0eb33e79d3722c1b", "src_uid": "13b5cf94f2fabd053375a5ccf3fd44c7", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$str = trim(fgets(STDIN));\n\n$hasSubstr = array();\n\n$maxLen = 0;\n\nfor ($pos = 0; $pos < strlen($str); $pos++) {\n    for ($len = 1; $len <= strlen($str) - $pos; $len++)  {\n        $substr = substr($str, $pos, $len);\n        if (isset($hasSubstr[$substr])) {\n//          echo \"Checking substr: \" . $substr . \"\\n\";\n            if ($len > $maxLen) $maxLen = $len; \n        }\n        else\n        {\n            $hasSubstr[$substr] = true;\n//          echo \"Adding substr: \" . $substr . \"\\n\";\n        }\n    }\n}\n/*\nfunction findPairs($string) {\n    for ($i = 0; $i < strlen($string); $i++) {\n        for ($j = 1; $j < strlen($string) - $i; $j++) {\n            if ($string[$i] == $string[$i + $j]) {\n                $pairs[] = array($i, $i + $j); \n                $len = 1;\n            }\n        }\n    }\n    return $pairs;\n}\n\nfunction findLength($array, $string) {\n    foreach ($array as $value) {\n        if (max($value) > $last) $last = max($value);\n    }\n    for ($i = 0; $i <= strlen($string) - $last; $i++) {\n        for ($j = 1; $j < strlen($string); $j++) {\n            $index0 = $array[$i][0];\n            $index1 = $array[$i][1];\n                if ($string[$index0 + $j] == $string[$index1 + $j]) $len = $j + 1;\n            else break;\n        }\n    }\n    return $len;\n}\n\n$length = findLength(findPairs($line), $line);\n*/\nprint($maxLen);\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "72d24f2f5689e642aeded7c2155274f8", "src_uid": "13b5cf94f2fabd053375a5ccf3fd44c7", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = rtrim(fgets(STDIN));\n$ret = 0;\nfor ($i = 0; $i < strlen($s); $i++)\n{\n    for ($j = $i + 1; $j < strlen($s); $j++)\n    {\n        for ($k = 0; $j + $k < strlen($s); $k++)\n        {\n            if ($s[$i + $k] != $s[$j + $k]) break;\n            $ret = max($k + 1, $ret);\n        }\n    }\n}\necho \"$ret\\n\";\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "4747397c49aa78c885bab4d589795d8d", "src_uid": "13b5cf94f2fabd053375a5ccf3fd44c7", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction debug($data, $die = true) {\n    echo '<pre>';\n\n    if (is_array($data)) {\n        print_r($data);\n    } else {\n        var_dump($data);\n    }\n\n    if ($die) {\n        die();\n    }\n\n    echo '</pre>';\n}\n\nfunction stdin() {\n    $stdin = @fopen('data.txt', 'r');\n    if (!$stdin) {\n        $stdin = fopen('php://stdin', 'r');\n    }\n\n    return $stdin;\n}\n\nfunction g() {\n    global $stdin;\n    return trim(fgets($stdin));\n}\n\n$stdin = stdin();\n/****************************************************** Solving block *****************************************************/\n$n = g();\n\n$size = strlen($n);\n\n$max = 0;\nfor($pos = 0; $pos < $size; $pos++) {\n    for($len = 1; $len < $size - $pos; $len++) {\n        $str = substr($n, $pos, $len);\n        $sub = strpos($n, $str, $pos+1);\n\n        if($sub !== false && $len > $max) {\n            $max = $len;\n        }\n    }\n}\n\necho $max;\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "349b45b533a8428aa73c83263d9add40", "src_uid": "13b5cf94f2fabd053375a5ccf3fd44c7", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n$fileIN = fopen(\"php://stdin\", \"r\");\n$fileOUT = fopen(\"php://stdout\", \"w\");\n$password = trim(fgets($fileIN));\n$pas = array();\nfor ($i = 0; $i <= 3; ++$i) {\n    $pas[$i] = 0;\n}\nif (strlen($password) >= 5) {\n    $pas[0] = 1;\n}\nfor ($i = 0; $i < strlen($password); ++$i) {\n    if (ord($password[$i]) >= 65 && ord($password[$i]) <= 90) {\n        $pas[1] = 1;\n    }\n    if (ord($password[$i]) >= 97 && ord($password[$i]) <= 122) {\n        $pas[2] = 1;\n    }\n    if (ord($password[$i]) >= 48 && ord($password[$i]) <= 57) {\n        $pas[3] = 1;\n    }\n    if ($password[$i] == \"!\" || $password[$i] == \"?\" || $password[$i] == \"_\" || $password[$i] == \".\" || $password[$i] == \",\") {\n        $pas[4] = 1;\n    }\n}\n$sol = 1;\nfor ($i = 0; $i <= 3; ++$i) {\n    if ($pas[$i] == 0) {\n        $sol = 0;\n    }\n}\nif ($sol == 0) {\n    fprintf($fileOUT, \"Too weak\\n\");\n} else {\n    fprintf($fileOUT, \"Correct\\n\");\n}\nfclose($fileIN);\nfclose($fileOUT);\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "bcd64eb3bb6b5e2d6589cb1dc0239905", "src_uid": "42a964b01e269491975965860ec92be7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n// your code goes here\n\n$p = trim(fgets(STDIN));\n$p = str_split($p);\n\nif(sizeof($p) < 5)\n{\n\techo \"Too weak\" . PHP_EOL;\n\treturn;\n}\n\n$hasupper = false;\n$haslower = false;\n$hasdigit = false;\n\nforeach($p as $c)\n{\n\tif(! $haslower && ctype_lower($c))\n\t{\n\t\t$haslower = true;\n\t}\n\t\n\tif(! $hasupper && ctype_upper($c))\n\t{\n\t\t$hasupper = true;\n\t}\n\t\n\tif(! $hasdigit && ctype_digit($c))\n\t{\n\t\t$hasdigit = true;\n\t}\n}\n\nif($hasupper && $haslower && $hasdigit)\n{\n\techo \"Correct\";\n} else {\n\techo \"Too weak\";\n}\n\necho PHP_EOL;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "8d235f060ebc3a77762c91fa4862286e", "src_uid": "42a964b01e269491975965860ec92be7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = str_split(trim(fgets(STDIN)));\n$b = array(\"0\", \"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\");\n$c = array(\"a\", \"b\", \"c\", \"d\", \"e\", \"f\", \"g\", \"h\", \"i\", \"j\", \"k\", \"l\", \"m\", \"n\", \"o\", \"p\", \"q\", \"r\", \"s\", \"t\", \"u\", \"v\", \"w\", \"x\", \"y\", \"z\");\n$d = array(\"A\", \"B\", \"C\", \"D\", \"E\", \"F\", \"G\", \"H\", \"I\", \"J\", \"K\", \"L\", \"M\", \"N\", \"O\", \"P\", \"Q\", \"R\", \"S\", \"T\", \"U\", \"V\", \"W\", \"X\", \"Y\", \"Z\");\n$e = 0;\n$f = 0;\n$g = 0;\nfor($x = 0; $x < count($a); $x++)\n{\n    for($y = 0; $y < count($b); $y++)\n    {\n        if($a[$x] == $b[$y])\n        {\n            $e = 1;\n            break;\n        }\n    }\n    for($y = 0; $y < count($c); $y++)\n    {\n        if($a[$x] == $c[$y])\n        {\n            $f = 1;\n            break;\n        }\n    }\n    for($y = 0; $y < count($d); $y++)\n    {\n        if($a[$x] == $d[$y])\n        {\n            $g = 1;\n            break;\n        }\n    }\n}\nif((count($a) >= 5) && ($e == 1) && ($f == 1) && ($g == 1))\n{\n    print \"Correct\";\n}\nelse\n{\n    print \"Too weak\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "052ff3ad37daf5bb6b91ccb2920699cd", "src_uid": "42a964b01e269491975965860ec92be7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = trim(fgets(STDIN));\n$a = 0;\n$a = $a + preg_match('/.{5,}/', $line, $matches, PREG_OFFSET_CAPTURE);\n$a = $a + preg_match('/[a-z]/', $line, $matches, PREG_OFFSET_CAPTURE);\n$a = $a + preg_match('/[A-Z]/', $line, $matches, PREG_OFFSET_CAPTURE);\n$a = $a + preg_match('/[0-9]/', $line, $matches, PREG_OFFSET_CAPTURE);\nif ($a == 4)\n    print 'Correct';\nelse\n    print 'Too weak';\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5d26e9fcaf89e6d4cea6be240f07d91c", "src_uid": "42a964b01e269491975965860ec92be7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN,\"%d\",$d);\nfscanf(STDIN,\"%s\",$s);\n\necho preg_replace(\"/o(go)+/\",\"***\",$s);", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "9e6a2ed68e68687b7bdfd2fa96186584", "src_uid": "619665bed79ecf77b083251fe6fe7eb3", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n, $s) = explode(\"\\n\", file_get_contents(\"php://stdin\"));\n\necho preg_replace(\"/o(go)+/\", \"***\", $s);\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "bca382be954683280c36e46a83e81950", "src_uid": "619665bed79ecf77b083251fe6fe7eb3", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$num = trim(fgets(STDIN));\n$str = trim(fgets(STDIN));\n$pattern = '~ogo(go)*~';\necho preg_replace($pattern, \"***\", $str).\"\\n\";", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "fb691f76fd93c2dcc17c87c2227e2edd", "src_uid": "619665bed79ecf77b083251fe6fe7eb3", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$F = fopen('php://stdin', 'r');\n$n = fgets($F);\n$s = fgets($F);\nfclose($F);\n\necho preg_replace('/ogo(go)*/', '***', $s);\n\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "a1ed64e93613799af43315b759c30691", "src_uid": "619665bed79ecf77b083251fe6fe7eb3", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$n);\nfscanf(STDIN,\"%s\",$str);\n$i=0;\nwhile($i <$n) \n{ \n\tif($str[$i]=='o'&&$str[$i+1]=='g'&&$str[$i+2]=='o')\n\t{\n       echo \"***\";\n       $i+=3;\n       while($str[$i]=='g'&&$str[$i+1]=='o')\n       \t$i+=2;\n    }\n    else\n    {\n    \techo \"$str[$i]\";\n    \t$i++;\n    }\n\n}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "a356f15237eaadf79eef92be92447480", "src_uid": "619665bed79ecf77b083251fe6fe7eb3", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$n);\n$str=trim(fgets(STDIN));\necho preg_replace('/ogo(go)*/','***',$str);\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "609990ed7b4bb73870fc9df703b39ab9", "src_uid": "619665bed79ecf77b083251fe6fe7eb3", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array();\nfor($x = $a - 1; $x >= max(1, $a - 1 - 100000); $x--)\n{\n     $c = str_split($x);\n     $d = array_sum($c);\n     $e = $x + $d;\n     if($a == $e)\n     {\n          $b[count($b)] = $x;\n     }\n}\nif(count($b) == 0)\n{\n     print \"0\";\n}\nelse\n{\n     sort($b);\n     print count($b) . \"\\n\";\n     for($x = 0; $x < count($b); $x++)\n     {\n          print $b[$x] . \"\\n\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "7307f926bd4e015cd1fba45f9e66eb15", "src_uid": "ae20ae2a16273a0d379932d6e973f878", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = 0;\n$e = 0;\nfor($x = 0; $x < $a; $x++)\n{\n     if(($b[$x] == 1) && ($c[$x] == 0))\n     {\n          $d++;\n     }\n     elseif(($b[$x] == 0) && ($c[$x] == 1))\n     {\n          $e++;\n     }\n     elseif(($b[$x] == 0) && ($c[$x] == 0))\n     {\n          $e2++;\n     }\n     elseif(($b[$x] == 1) && ($c[$x] == 1))\n     {\n          $f2++;\n     }\n}\nif($d == 0)\n{\n     print \"-1\";\n}\nelseif($e == 0)\n{\n     print \"1\";\n}\nelseif(($d == 0) && ($e == 0))\n{\n     print \"-1\";\n}\nelse\n{\n     $f = ceil($e / $d);\n     $g = $e % $d;\n     if($g == 0)\n     {\n          print $f + 1;\n     }\n     elseif($g != 0)\n     {\n          print $f;\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "efa7b99dede7240fc3f7fa421a6dde44", "src_uid": "b62338bff0cbb4df4e5e27e1a3ffaa07", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = intval(fgets(STDIN));\n\necho intval($n/2) + 1;\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "f75d45d89430aacf8682097decde558a", "src_uid": "5551742f6ab39fdac3930d866f439e3e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = floor($a / 2);\n$b++;\nprint $b;\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "2d08520220790074a7052cef3b573b4b", "src_uid": "5551742f6ab39fdac3930d866f439e3e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n// in the voice of the goddes\n// I cry the song of Haddes\n\n$Hades = trim(fgets(STDIN));\n\necho floor($Hades/2)+1;\n\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "00a7d9908b45d297f53f94b19a8082b9", "src_uid": "5551742f6ab39fdac3930d866f439e3e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*\nhttp://www.codeforces.com/problemset/problem/221/B\nThe Little Elephant loves numbers.\n\nHe has a positive integer x. The Little Elephant wants to find the number of \npositive integers d, such that d is the divisor of x, and x and d have at least\none common (the same) digit in their decimal representations.\n\nHelp the Little Elephant to find the described number.\nInput: A single line contains a single integer x (1 ? x ? 109).\nOutput: In a single line print an integer — the answer to the problem.\n*/\n$num = fgets(STDIN);\n//echo $num;\n//$arr = str_split($num);\n//print_r($arr);\n/*\nforeach( $arr as $i => $val){\n    echo \"Id: $i, Val: $val\\n\";\n}\n*/\n$r = 0;\nfor ($i = 1; $i <= sqrt($num); $i += 1) {\n    if ($num % $i == 0) {\n        $k = $num / $i;\n        //echo \"probando $i $k \\n\";\n        $f_i = 0;\n        $f_j = 0;\n        for ($j = 0; $j <= 9; $j += 1) {\n            if (substr_count((string)$num, (string)$j) > 0){\n                if (substr_count((string)$i, (string)$j) > 0  and $f_i == 0){\n                    //echo \"$i\\n\";\n                    $r++;\n                    $f_i = 1;\n                }\n                if (substr_count((string)$k, (string)$j) > 0 and $f_j == 0 and $i != $k) {\n                    //echo \"$k\\n\";\n                    $f_j = 1;\n                    $r++;\n                }\n            }\n        }\n    }\n}\necho $r;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7171fb2a70c787c0f0d1eaf7573726b0", "src_uid": "ada94770281765f54ab264b4a1ef766e", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\nif($a == $b)\n{\n    if(($a == \"rock\") && ($c == \"paper\"))\n    {\n        print \"S\";\n    }\n    elseif(($a == \"paper\") && ($c == \"scissors\"))\n    {\n        print \"S\";\n    }\n    elseif(($a == \"scissors\") && ($c == \"rock\"))\n    {\n        print \"S\";\n    }\n    else\n    {\n        print \"?\";\n    }\n}\nelseif($b == $c)\n{\n    if(($b == \"rock\") && ($a == \"paper\"))\n    {\n        print \"F\";\n    }\n    elseif(($b == \"paper\") && ($a == \"scissors\"))\n    {\n        print \"F\";\n    }\n    elseif(($b == \"scissors\") && ($a == \"rock\"))\n    {\n        print \"F\";\n    }\n    else\n    {\n        print \"?\";\n    }\n}\nelseif($a == $c)\n{\n    if(($a == \"rock\") && ($b == \"paper\"))\n    {\n        print \"M\";\n    }\n    elseif(($a == \"paper\") && ($b == \"scissors\"))\n    {\n        print \"M\";\n    }\n    elseif(($a == \"scissors\") && ($b == \"rock\"))\n    {\n        print \"M\";\n    }\n    else\n    {\n        print \"?\";\n    }\n}\nelse\n{\n    print \"?\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e050cd86d6720e46cb74d74a8940c37d", "src_uid": "072c7d29a1b338609a72ab6b73988282", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\nif($a == $b)\n{\n    if(($a == \"rock\") && ($c == \"paper\"))\n    {\n        print \"S\";\n    }\n    elseif(($a == \"paper\") && ($c == \"scissors\"))\n    {\n        print \"S\";\n    }\n    elseif(($a == \"scissors\") && ($c == \"rock\"))\n    {\n        print \"S\";\n    }\n    else\n    {\n        print \"?\";\n    }\n}\nelseif($b == $c)\n{\n    if(($b == \"rock\") && ($a == \"paper\"))\n    {\n        print \"F\";\n    }\n    elseif(($b == \"paper\") && ($a == \"scissors\"))\n    {\n        print \"F\";\n    }\n    elseif(($b == \"scissors\") && ($a == \"rock\"))\n    {\n        print \"F\";\n    }\n    else\n    {\n        print \"?\";\n    }\n}\nelseif($a == $c)\n{\n    if(($a == \"rock\") && ($b == \"paper\"))\n    {\n        print \"M\";\n    }\n    elseif(($a == \"paper\") && ($b == \"scissors\"))\n    {\n        print \"M\";\n    }\n    elseif(($a == \"scissors\") && ($b == \"rock\"))\n    {\n        print \"M\";\n    }\n    else\n    {\n        print \"?\";\n    }\n}\nelse\n{\n    print \"?\";\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "906b768a8c00b696a55fd78f94f1f7a3", "src_uid": "072c7d29a1b338609a72ab6b73988282", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n$fileIN = fopen(\"php://stdin\", \"r\");\n$fileOUT = fopen(\"php://stdout\", \"w\");\n\n$n = trim(fgets($fileIN));\n$level = trim(fgets($fileIN));\n\n$rs = 0;\nfor ($i = 0; $i < $n; $i++) {\n\tif ($level[$i] == \"*\") {\n\t\tfor ($j = $i + 1; $j < $n; $j++) {\n\t\t\tif ($level[$j] == \"*\") {\n\t\t\t\tfor ($k = $j + 1; $k < $n; $k++) {\n\t\t\t\t\tif (($j - $i) == ($k - $j) && $level[$k] == \"*\") {\n\t\t\t\t\t\tfor ($l = $k + 1; $l < $n; $l++) {\n\t\t\t\t\t\t\tif (($j - $i) == ($l - $k) && $level[$l] == \"*\") {\n\t\t\t\t\t\t\t\tfor ($x = 0; $x < $n; $x++) {\n\t\t\t\t\t\t\t\t\tif (($j - $i) == ($x - $l) && $level[$x] == \"*\") {\n\t\t\t\t\t\t\t\t\t\t$rs = 1;\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n\nif ($rs == 1) {\n\tfprintf($fileOUT, \"yes\\n\");\n} else {\n\tfprintf($fileOUT, \"no\\n\");\n}\n\nfclose($fileIN);\nfclose($fileOUT);\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "a6c06819014c8698d4dd146efb67bf7e", "src_uid": "12d451eb1b401a8f426287c4c6909e4b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$fp = fopen(\"php://stdin\", 'r');\n$str = fgets($fp, 256);\n//$str = '1';\n//$str = '11';\n$n = (int)$str;\n$str = trim(fgets($fp, 256));\n//$str = '*...*...*...*...*...';\n//$str = '.*.*...*.*.';\n$level = $str;\n$need_jump = 4; //Сколько прыжков надо сделать\n$max_jump = floor(strlen($level) / $need_jump);\n$res = false;\nfor ($curr_jump = 1; $curr_jump <= $max_jump; $curr_jump++)\n{\n\tfor ($step = 0; $step <= strlen($level) - $need_jump*$curr_jump; $step++)\n\t{\n\t\tif ($level[$step] != '*') continue;\n\t\t$res = true;\n\t\t//echo \"\\n\";\n\t\tfor ($i = 0; $i <= $need_jump; $i++)\n\t\t{\n\t\t\t//echo ($step + $i * $curr_jump + 1).\" \";\n\t\t\tif ($level[$step + $i * $curr_jump] != '*')\n\t\t\t{\n\t\t\t\t$res = false;\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t}\n\t\tif ($res) break;\n\t}\n\tif ($res) break;\n}\necho $res ? 'yes' : 'no';\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "1abd57b594081247aefef2b798d29f8d", "src_uid": "12d451eb1b401a8f426287c4c6909e4b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array();\n$d = array();\nfor($x = 0; $x < $a; $x++)\n{\n    if($b[$x] == \"*\")\n    {\n        array_push($c, $x + 1);\n        $d[$x + 1] = 1;\n    }\n}\n$e = 0;\nfor($x = 1; $x <= 25; $x++)\n{\n    for($y = 0; $y < count($c); $y++)\n    {\n        $f = 0;\n        $g = $c[$y];\n        for($z = $y; $z < $y + 5; $z++)\n        {\n            if($d[$g + $x] == 1)\n            {\n                $f++;\n                $g += $x; \n                if($f == 4)\n                {\n                    $e = 1;\n                    break;\n                }\n            }\n            else\n            {\n                break;\n            }\n        }\n        if($e == 1)\n        {\n            break;\n        }\n    }\n    if($e == 1)\n    {\n        break;\n    }\n}\nif($e == 1)\n{\n    print \"yes\";\n}\nelse\n{\n    print \"no\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "d929b235c3da418a648f39ab790c2aa0", "src_uid": "12d451eb1b401a8f426287c4c6909e4b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array();\n$d = array();\nfor($x = 0; $x < $a; $x++)\n{\n    if($b[$x] == \"*\")\n    {\n        array_push($c, $x + 1);\n        $d[$x + 1] = 1;\n    }\n}\n$e = 0;\n\nfor($x = 1; $x <= 25; $x++)\n{\n    for($y = 0; $y < count($c); $y++)\n    {\n        $f = 0;\n        $g = $c[$y];\n        for($z = $y; $z < $y + 5; $z++)\n        {\n            if($d[$g + $x] == 1)\n            {\n                $f++;\n                $g += $x; \n                if($f == 4)\n                {\n                    $e = 1;\n                    break;\n                }\n            }\n            else\n            {\n                break;\n            }\n        }\n        if($e == 1)\n        {\n            break;\n        }\n    }\n    if($e == 1)\n    {\n        break;\n    }\n}\nif($e == 1)\n{\n    print \"yes\";\n}\nelse\n{\n    print \"no\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "7a00b7719be04ae95671d9da280be4c8", "src_uid": "12d451eb1b401a8f426287c4c6909e4b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n$fileIN = fopen(\"php://stdin\", \"r\");\n$fileOUT = fopen(\"php://stdout\", \"w\");\n\n$n = trim(fgets($fileIN));\n$level = trim(fgets($fileIN));\n\n$rs = 0;\nfor ($i = 0; $i < $n; $i++) {\n\tif ($level[$i] == \"*\") {\n\t\tfor ($j = $i + 1; $j < $n; $j++) {\n\t\t\tif ($level[$j] == \"*\") {\n\t\t\t\tfor ($k = $j + 1; $k < $n; $k++) {\n\t\t\t\t\tif (($j - $i) == ($k - $j) && $level[$k] == \"*\") {\n\t\t\t\t\t\tfor ($l = $k + 1; $l < $n; $l++) {\n\t\t\t\t\t\t\tif (($j - $i) == ($l - $k) && $level[$l] == \"*\") {\n\t\t\t\t\t\t\t\tfor ($x = 0; $x < $n; $x++) {\n\t\t\t\t\t\t\t\t\tif (($j - $i) == ($x - $l) && $level[$x] == \"*\") {\n\t\t\t\t\t\t\t\t\t\t$rs = 1;\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n\nif ($rs == 1) {\n\tfprintf($fileOUT, \"yes\\n\");\n} else {\n\tfprintf($fileOUT, \"no\\n\");\n}\n\nfclose($fileIN);\nfclose($fileOUT);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "1f5542da21d0951f6742ab9302795e33", "src_uid": "12d451eb1b401a8f426287c4c6909e4b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s1 = trim(fgets(STDIN));\n$s2 = trim(fgets(STDIN));\n$p1 = 0;\n$p2 = 0;\n$c = 0;\n\nfor ($i=0; $i<strlen($s1); $i++) {\n    if($s1[$i]=='+') { \n      $p1++; \n    } else { \n      $p1--; \n    }\n    \n    if ($s2[$i]=='+') { \n      $p2++;\n    } elseif ($s2[$i] == '-') { \n      $p2--; \n    } else { \n      $c++;\n    }\n}\n\n$d = array();\n$d[0][25] = 1.0;\nfor ($j=0; $j<$c; $j++) {\n    for($i=1; $i<49; $i++) {\n        $d[$j+1][$i-1] += $d[$j][$i]*0.5;\n        $d[$j+1][$i+1] += $d[$j][$i]*0.5;\n    }\n}\nprintf(\"%.12f\",$d[$c][25+($p2-$p1)]);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "dp", "combinatorics", "bitmasks", "probabilities"], "code_uid": "62d18063d31fba74366dd035362df362", "src_uid": "f7f68a15cfd33f641132fac265bc5299", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\n\n$s = trim(fgets($f));\n$x = trim(fgets($f));\n\n$n = array(\n    0 => 1,\n    1 => 1,\n    2 => 2,\n    3 => 6,\n    4 => 24,\n    5 => 120,\n    6 => 720,\n    7 => 5040,\n    8 => 40320,\n    9 => 362880,\n    10 => 3628800\n);\n\n$total = 0;\nfor($i=0;$i<strlen($s);$i++){\n    if ($s[$i]=='+') $total++;\n}\n\n\n$result = 0;\n$q = 0;\nfor($i=0;$i<strlen($x);$i++){\n    if ($x[$i]=='+') $result++;\n    if ($x[$i]=='?') $q++;\n}\n\n$range = abs($total - $result);\n\nif ($q==0){\n    if ($range==0) echo \"1.000000000000\\n\";\n    else echo \"0.000000000000\\n\";\n    exit;\n}\n\nif ($q<$range || $result>$total){\n    echo \"0.000000000000\\n\";\n} else {\n    $v = pow(0.5,$q)*$n[$q]/($n[$q-$range]*$n[$range]);\n    echo $v;\n}\n\n\n\n\n\n\n\n\n", "lang_cluster": "PHP", "tags": ["brute force", "math", "dp", "combinatorics", "bitmasks", "probabilities"], "code_uid": "9f94fecbe3ed43abd82c6ab979a475eb", "src_uid": "f7f68a15cfd33f641132fac265bc5299", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s1 = trim(fgets(STDIN));\n$s2 = trim(fgets(STDIN));\n$p1 = $p2 = $c = 0;\nfor($i=0; $i<strlen($s1);$i++) {\n\tif($s1[$i]=='+')$p1++;\n\telse $p1--;\n\tif($s2[$i]=='+')$p2++;\n\telse if($s2[$i]=='-')$p2--;\n\telse $c++;\n}\n$d[0][25]=1.0;\nfor($j=0;$j<$c;$j++) {\n\tfor($i=1;$i<49;$i++) {\n\t\t$d[$j+1][$i-1]+=$d[$j][$i]*0.5;\n\t\t$d[$j+1][$i+1]+=$d[$j][$i]*0.5;\n\t}\n}\nprintf(\"%.12f\",$d[$c][25+($p2-$p1)]);\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "dp", "combinatorics", "bitmasks", "probabilities"], "code_uid": "b678491ca232047c23292f7130e834f1", "src_uid": "f7f68a15cfd33f641132fac265bc5299", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str1 = trim(fgets(STDIN)); \n$str2 = trim(fgets(STDIN)); \n$correct = str_split($str1);\n$correctPos = 0;\nforeach ($correct as $c) {\n\tif ($c == '+') {\n\t\t$correctPos++;\n\t} else {\n\t\t$correctPos--;\n\t}\n}\n//print_r($correctPos);\n$guessed = str_split($str2);\n$guessedPos = array(0);\nforeach ($guessed as $g) {\n\t$cnt = count($guessedPos);\n\tfor($i = 0; $i < $cnt; $i++) {\n\t\tif($g == '+') {\n\t\t\t++$guessedPos[$i];\n\t\t} else if($g == '-') {\n\t\t\t--$guessedPos[$i];\n\t\t} else {\n\t\t\t$currVal = $guessedPos[$i];\n\t\t\t++$guessedPos[$i];\n\t\t\t$guessedPos[] = $currVal - 1;\n\t\t}\n\t}\n}\n$total = count($guessedPos);\n$accu = 0;\nforeach($guessedPos as $p) {\n\tif($p == $correctPos) ++$accu;\n}\necho $accu/$total;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "dp", "combinatorics", "bitmasks", "probabilities"], "code_uid": "c70b4a40aa6a114b4d37cf960ade6d6e", "src_uid": "f7f68a15cfd33f641132fac265bc5299", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$server = \"php://stdin\";\n$local = \"input.txt\";\n$handle = fopen($server, \"r\");\n$x= trim(fgets($handle));\nif($x&1)\n{\n    echo '0';\n}else\n{\n    echo 1<<($x/2);\n}\n?>\n", "lang_cluster": "PHP", "tags": ["math", "dp"], "code_uid": "e6d47b761a161ad67588fabac5998a24", "src_uid": "4b7ff467ed5907e32fd529fb39b708db", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a % 2 == 1)\n{\n     print \"0\";\n}\nelse\n{\n     $b = 1;\n     for($x = 1; $x <= 60; $x++)\n     {\n          if($x % 2 == 0)\n          {\n               $b *= 2;\n          }\n          if($x == $a)\n          {\n               print $b;\n               break;\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "dp"], "code_uid": "b52a1b173b17a8b4fbb7359703d2f196", "src_uid": "4b7ff467ed5907e32fd529fb39b708db", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n# 1182A\n$stdin = STDIN;\n[$n] = fscanf($stdin, '%u');\n$result = 0;\nif (($n % 2) === 0) {\n    $result = 2 ** ($n / 2);\n}\ndie((string)$result);\n", "lang_cluster": "PHP", "tags": ["math", "dp"], "code_uid": "4e726651d2dd8dd03af3e1fcd11f8efd", "src_uid": "4b7ff467ed5907e32fd529fb39b708db", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * User: Nash\n * Date: 7/19/14\n * Time: 7:25 PM\n */\n\n$in = fopen('php://stdin', 'r');\n\nlist($x,$y) = explode(\" \", rtrim(fgets($in)));\n$n = rtrim(fgets($in));\n\n$m = false;\n\nif($n>3){\n    if(ceil($n/3)%2==0){\n        $m = true;\n    }\n    $n = $n % 3;\n}\n\n$r = 0;\nif($n==0 || $n==3){\n    $r = $y - $x;\n}else if($n==2){\n    $r = $y;\n}else if($n==1){\n    $r = $x;\n}\n\nif($m){\n    $r *= -1;\n}\n$r %= 1000000007;\nif ($r < 0)\n{\n    $r += 1000000007;\n}\n\necho \"$r\\n\";", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "ad877dbfab13f5aba0f08ddfc47eb777", "src_uid": "2ff85140e3f19c90e587ce459d64338b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n\nfunction solve(){\n\t$Scanner = new Scanner(\"php://stdin\");\n\t//$Scanner = new Scanner(\"input.txt\");\n\t\n\t$inp_N = $Scanner->Scan();\n\t$inp_K = (int)$Scanner->Scan();\n\t\n\t$start = $inp_N - (int)($inp_N / $inp_K);\n\t//for ($i = 1; $i <= $inp_N; $i++) {\n\tfor ($i = $start; $i <= $inp_N; $i++) {\n\t\t$temp = $i;\n\t\t$sum = 0;\n\t\twhile ($temp !== 0) {\n\t\t\t$sum += $temp;\n\t\t\t//$temp = $temp / $inp_K;\n\t\t\t$temp = (int)($temp / $inp_K);\n\t\t}\t\n\t\t//if ($sum > $inp_N) {\n\t\tif ($sum >= $inp_N) {\n\t\t\t$V = $i;\n\t\t\tbreak;\n\t\t}\n\t}\n\tprintf(\"%d\", $V);\n\t$Scanner->close();\n}\n\nob_end_clean();\nsolve();\n\n//error_reporting(0);\n//$Scanner = new Scanner(\"php://stdin\");\nclass Scanner{\n\tprivate $Stream;\n\tprivate $Scanners = array();\n\tprivate $Id = 0;\n\t\n\tpublic function __construct($opend){\n\t\tif((!is_file($opend) && !is_link($opend)) && $opend !== \"php://stdin\"){\n  \t\t\tprint(\"file or link or ''php://stdin' err\");\n  \t\t\texit;\n\t\t}\n\t\t\n\t\t$this->Stream = fopen($opend, 'r');\n\t\t$contents = stream_get_contents($this->Stream);\n\n\t\t//err $c_row = array(\"\\n\", \"\\r\", \"\\r\\n\");\n\t\t$c_row = array(\"\\r\\n\", \"\\r\", \"\\n\");\n\t\t$contents = str_replace($c_row, \" \", $contents);\n\t\t$this->Scanners = explode(\" \", $contents);\n\t}\n\t\n\tfunction Scan(){\n\t\t$x = $this->Id;\n\t\t$sc = $this->Scanners[$x];\n\t\t$this->Id = ++$x;\n\t\treturn $sc;\n\t}\n\n\tfunction close(){\n\t\tfclose($this->Stream);\n\t}\n}\n\n/*\n====begin=====\n\n//input    $inp_ or upper\n//block    $temp_\n//two block$ttemp_\n//as \t   $as_\n//instance $(Upper)\n//ref      $ref\n//class menba $^Upper\n\n====end=======\n\n===== class begin =====\n\n//error_reporting(0);\n//$Scanner = new Scanner(\"php://stdin\");\n//ref \"#109_div2_B_1230942 laurenceHR\"\nclass LineScanner{\n\tprivate $Stream;\n\tprivate $Scanners = array();\n\tprivate $LineIds_Of_ScanIds= array();\n\tprivate $LinesScanners = array();\n\tprivate $LastScanIds_Of_LineIds = array();\n\tprivate $Scan_number = 0;\n\tprivate $Scanline_number = 0;\n\t\n\tpublic function __construct($opend){\n\t\tif((!is_file($opend) && !is_link($opend)) && $opend !== \"php://stdin\"){\n  \t\t\tprint(\"file or link err\");\n  \t\t\texit;\n\t\t}\n\t\t\n\t\t$this->Stream = fopen($opend, 'r');\n\t\t$contents = stream_get_contents($this->Stream);\n\t\t\n\t\t$temp_lines = explode(\"\\n\", $contents);\n\t\t$temp_linescanners = array();\n\t\t$temp_x = 0;\n\t\t$temp_y = 0;\n\t\t//--attention for initting of array--(these is not needed but for easily reading)//\n\t\t$ttemp_scanners = array();\n\t\t//$del = Array(\"\\n\",\"\\r\",\"\\n\\r\");\n\t\tforeach ($temp_lines as $as_line) {\n\t\t\tif (strlen($as_line) === 0) {\n\t\t\t\tprint(\"input err\");\n\t\t\t}\n\t\t\t\n\t\t\t//$as_line = str_replace($del,'',$as_line);\n\t\t\t$temp_linescanners[] = $as_line;\n\t\t\t$ttemp_line_scanners = explode(\" \", $as_line);\n\t\t\t//$ttemp_scanners = array();\n\t\t\tforeach ($ttemp_line_scanners as $as_sc) {\n\t\t\t\t$ttemp_scanners[] = $as_sc;\n\t\t\t\t$this->LineIds_Of_ScanIds[$temp_x] = $temp_y;\n\t\t\t\t$temp_x++;\n\t\t\t}\n\t\t\t$this->LastScanIds_Of_LineIds[$temp_y] = $temp_x - 1;\n\t\t\t$temp_y++;\n\t\t}\n\t\t$this->Scanners = $ttemp_scanners;\n\t\t$this->LinesScanners = $temp_linescanners;\n\t}\n\t\n\tfunction Scan(){\n\t\t$x = $this->Scan_number;\n\t\t$y = $this->Scanline_number;\n\t\tif ($this->LineIds_Of_ScanIds[$x] === false || $this->LastScanIds_Of_LineIds[$y] === false) {\n\t\t\tprint(\"scan err\");\n\t\t}\n\t\t\t\t\n\t\t$sc = $this->Scanners[$x];\n\t\t//--attention for ++$x//\n\t\t//$this->Scan_number = $x++;\n\t\t$this->Scan_number = ++$x;\n\t\t$this->Scanline_number = $this->LineIds_Of_ScanIds[$x];\n\t\treturn $sc;\n\t}\n\t\n\tfunction LineScan(){\n\t\t$x = $this->Scan_number;\n\t\t$y = $this->Scanline_number;\n\t\tif ($this->LineIds_Of_ScanIds[$x] === false || $this->LastScanIds_Of_LineIds[$y] === false) {\n\t\t\tprint(\"linescan err\");\n\t\t}\n\t\t\n\t\t$lsc = $this->LinesScanners[$y];\n\t\t$this->Scan_number = $this->LastScanIds_Of_LineIds[$y] + 1;\n\t\t$this->Scanline_number = $y + 1;\n\t\treturn $lsc;\n\t}\n\t\n\tfunction close(){\n\t\tfclose($this->Stream);\n\t}\n}\n\nclass Token{\n\tprivate $token;\n\tprivate $tok;\n\t\n\tpublic function __construct($str_line, $tok) {\n\t\t$this->tok = $tok;\n\t\t$this->token = strtok($str_line, $this->tok);\n\t}\n\n\tpublic function nextToken() {\n\t\t$thisToken = $this->token;\n\t\t$this->token = strtok($this->tok);\n\t\treturn $thisToken;\n\t} \n\t\t\n\tpublic function nextFloat() {\n\t\treturn (float)$this->nextToken();\n\t}\n\t\n  \tpublic function nextInt() {\n\t\treturn (int)$this->nextToken();\n\t}\n\t\n\tpublic function nextIntArray() {\n\t\t$temp_arr = array();\n\t\t$flag = -1;\n\t\twhile ($flag !== 1) {\n\t\t\t$thisToken = $this->nextToken();\n\t\t\tif ($thisToken !== false) {\n\t\t\t\t$temp_arr[] = $thisToken;\n\t\t\t} else {\n\t\t\t\t$flag = 1;\n\t\t\t}\n\t\t}\n\t\treturn $temp_arr;\n\t}\n\n\tpublic function nnextIntArray($num) {\n\t\t$temp_arr = array();\n\t\tfor ($i = 0; $i < $num; $i++) {\n\t\t\t$temp_arr[] = (int)$this->token;\n\t\t}\n\t\treturn $temp_arr;\n\t}\n}\n===== class end ======\n\n=== function begin ===\n\nfunction get_line() {\n        $stdin = fopen(\"php://stdin\", \"r\"); \n        $line = rtrim($stdin, \"\\n\"); \n        fclose($stdin); \n        return $line; \n}\n\nfunction num_printf($i){\n\tif (is_float($i)) {\n\t\tprintf(\"%.0f\", $i);\n\t}\n\tif (is_int($i)) {\n\t\tprintf(\"%d\", $i);\n\t}\n}\n\nfunction array_printf(array $array) {\n\t\t$message = \"\";\n\t\tforeach ($array as $value) {\n\t\t\t$message .= \"$value\" . \" \";\n\t\t}\n\t\t$message = rtrim($message);\n\t\tprintf('%s', $message);\n}\n\n== function end ======\n*/\n\n?>", "lang_cluster": "PHP", "tags": ["implementation", "binary search"], "code_uid": "06f20fedac6c4b0476f00e2cf1d1d987", "src_uid": "41dfc86d341082dd96e089ac5433dc04", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = explode(' ',trim(fgets(STDIN)));\n$n = $s[0];\n$k = $s[1];\n$st = $n - (int)($n/$k);\n    for ($i = $st; $i <= $n; $i++)\n     {\n        $sum = 0;\n        $temp = $i;\n        \n        while ($temp != 0) {\n            $sum += $temp;\n            $temp = (int)($temp / $k);\n        }   \n        if ($sum >= $n ) break; \n     }\n echo $i;    \n", "lang_cluster": "PHP", "tags": ["implementation", "binary search"], "code_uid": "801367ba5d2a5b23a516843c6fde552c", "src_uid": "41dfc86d341082dd96e089ac5433dc04", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile($s = fgets(STDIN)){\n    $input .= $s;\n}\n$input = explode(\"\\r\\n\", $input);\n$digits = explode(\" \", $input[0]);\n$n = $digits[0];\n$k = $digits[1]; \n$ll = 1; \n$rr = round(1e18);\n\nwhile ($ll < $rr) {\n    $mid=floor(($ll+$rr)/2);\n    $x = 0; $y = $mid;\n\n    while  ($y > 0 ) { \n      $x = $x+$y;\n      $y = floor($y/$k);\n\n    }\n    if ($x >= $n) { \n        $rr = $mid;  \n\n    }\n    \n    else {\n        $ll = $mid + 1; \n\n    }\n}\necho $ll;\n?>", "lang_cluster": "PHP", "tags": ["implementation", "binary search"], "code_uid": "3620eeeb2acd17900a2cec58feba79d4", "src_uid": "41dfc86d341082dd96e089ac5433dc04", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$fi=@fopen('test.inp',\"r\");\n$s=trim(fgets(STDIN));\n$a=explode(\" \",$s);\n$c=min($a[1],$a[0]);\nif ($c%2==0){\n\techo \"Malvika\";\n}\nelse{\n\techo \"Akshat\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "567ced8cb03007adc142e51c1bcab1fe", "src_uid": "a4b9ce9c9f170a729a97af13e81b5fe4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $finame = \"in.txt\";\n    $finame1 = \"php://stdin\";\n    $foname = \"out.txt\";\n    $foname1 = \"php://stdout\";\n    \n    function swap(&$n, &$m){\n        $tmp = $n;\n        $n = $m;\n        $m = $tmp;\n    }\n    \n    $fi = fopen($finame1, \"r\");\n    $fo = fopen($foname1, \"w\");\n    fscanf($fi, \"%d%d\", $n, $m);\n    \n    if ($n > $m)\n        swap($n, $m);\n    \n    if ($n & 1)\n        fprintf($fo, \"Akshat\");\n    else\n        fprintf($fo, \"Malvika\");\n    \n    fclose($fi);\n    fclose($fo);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e28818fad7aaae6c2099c583e007b109", "src_uid": "a4b9ce9c9f170a729a97af13e81b5fe4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN,\"%d %d\",$n,$m);\n    $max=min($n,$m);\n    $max%2==1?printf(\"Akshat\"):printf(\"Malvika\");", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "47da43e9796c71bccb1d37e29e8ea47a", "src_uid": "a4b9ce9c9f170a729a97af13e81b5fe4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = explode(\" \",trim(fgets(STDIN)));\nsort($n);\nif ($n[0]%2!=0)echo \"Akshat\";\nelse echo \"Malvika\";", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ad5d951f570e62b120e16bc533b2269c", "src_uid": "a4b9ce9c9f170a729a97af13e81b5fe4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n\n$input = fgets(STDIN);\n\n$n = (int) explode(' ', $input)[0];\n$m = (int) explode(' ', $input)[1];\n\necho min($n,$m) % 2 === 1 ? 'Akshat' : 'Malvika'; ", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b1606491cf2d3ebe21ee617654622b78", "src_uid": "a4b9ce9c9f170a729a97af13e81b5fe4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n, $m) = explode(' ', fgets(STDIN));\n\n$n = (int)$n;\n$m = (int)$m;\n\n$player = array(0 => 'Akshat', 1 => 'Malvika');\n$index = 1;\n\nwhile ($n > 0 && $m > 0) {\n\t$index ^= 1;\n\t$n --;\n\t$m --;\n}\n\nprint $player[$index];\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "332ff59888883b5e0bfc4c2290150ca8", "src_uid": "a4b9ce9c9f170a729a97af13e81b5fe4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = min($a, $b);\n$d = $c % 2;\nif($d == 0)\n{\n    print \"Malvika\";\n}\nelse\n{\n    print \"Akshat\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5463046f78e5d7b83c2c835e2e6de181", "src_uid": "a4b9ce9c9f170a729a97af13e81b5fe4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $arr = explode(\" \", trim(fgets(STDIN)));\n    $v = min($arr);\n        if ($v % 2 == 0){\n            echo 'Malvika';\n        }\n        else echo 'Akshat';", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a738fa3a2e87255e9ae6ff1065b54d9b", "src_uid": "a4b9ce9c9f170a729a97af13e81b5fe4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n, $m) = explode(' ', fgets(STDIN));\n\n$k = min((int)$n, (int)$m);\n\nprint $k&1 ? 'Akshat' : 'Malvika';\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0954ab350c0071a01424223aed8244c1", "src_uid": "a4b9ce9c9f170a729a97af13e81b5fe4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction ropewalkers($str = '')\n{\n    $arr = explode(' ', $str);\n    $d = $arr[count($arr)-1];\n    unset($arr[count($arr)-1]);\n\n    $result = 0;\n    sort($arr);\n    for ($i = 0; $i < count($arr); $i++) {\n        if (isset($arr[$i+1]) && abs($arr[$i] - $arr[$i+1]) < $d) {\n            $result += $d - abs(($arr[$i] - $arr[$i+1]));\n        }\n    }\n    return $result;\n}\n$dir = fopen(\"php://stdin\", 'r');\necho ropewalkers(stream_get_contents($dir));\n\n?>\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "c9dbe976ab298fd085d3deb60d44d459", "src_uid": "47c07e46517dbc937e2e779ec0d74eb3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n $a = explode(\" \", trim(fgets(STDIN)));\n $d = (int) $a[3];\n unset($a[3]);\n sort($a);\n $z = (int) $a[0];\n $x = (int) $a[1];\n $c = (int) $a[2];\n \n $sec1 = 0;\n $sec2 = 0;\n if (($x - $z) < $d){\n     $sec1 = $d + $z - $x;\n } \n if ($c - $x < $d){\n     $sec2 = $d + $x - $c;\n }\necho $sec1 + $sec2;\n \n\n ?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "61669b48cfe39c240e4a0942f532afca", "src_uid": "47c07e46517dbc937e2e779ec0d74eb3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = array($a, $b, $c);\nsort($e);\n$f = $e[1] - $e[0];\n$g = $e[2] - $e[1];\n$h = 0;\nif($f < $d)\n{\n     $h += $d - $f;\n}\nif($g < $d)\n{\n     $h += $d - $g;\n}\nprint $h;\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "f9783f2352fcee2f23762c75a482d0a2", "src_uid": "47c07e46517dbc937e2e779ec0d74eb3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction s($str = '') {\n  $arr = explode(' ', $str);\n  $d = $arr[count($arr) - 1];\n  unset($arr[count($arr) - 1]);\n\n  sort($arr);\n  return max(0, $d - ($arr[1] - $arr[0])) + max(0, $d - ($arr[2] - $arr[1]));\n}\n$dir = fopen(\"php://stdin\", 'r');\necho s(stream_get_contents($dir));\n?>\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "43bd5486de68bf2808bbad5fb9f7e5bc", "src_uid": "47c07e46517dbc937e2e779ec0d74eb3", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php echo strlen(decbin(fgets(STDIN))); ?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "constructive algorithms"], "code_uid": "8fcb3e5cf79b07862c6e7e9b679ecc3a", "src_uid": "95cb79597443461085e62d974d67a9a0", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = (int) log($a, 2);\nprint $b + 1;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "constructive algorithms"], "code_uid": "9aa7631372a824bd439b4294424df3ef", "src_uid": "95cb79597443461085e62d974d67a9a0", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  $joy = explode(\" \", trim(fgets(STDIN)));\n  \n  if ($joy[0] <= $joy[1]) {\n    $charger = 0;\n  } else {\n    $charger = 1;\n  }\n  \n  $time = 0;\n  \n  if ($joy[0] == 1 && $joy[1] == 1) {\n     echo 0;\n     exit;\n  }\n      \n  while ($joy[0] > 0 && $joy[1] > 0) {\n    $time = $time + 1;\n    \n    if ($charger == 0) {\n      $joy[0]++;\n      $joy[1] = $joy[1] - 2;\n    } else {\n      $joy[1]++;\n      $joy[0] = $joy[0] - 2;\n    }\n        \n    if ($joy[0] <= 2) {\n      $charger = 0;\n    } else if ($joy[1] <= 2) {\n      $charger = 1;\n    }\n  }\n  \n  echo $time;", "lang_cluster": "PHP", "tags": ["math", "greedy", "dp", "implementation"], "code_uid": "20ad47532efbaba81f945340c1b7397e", "src_uid": "ba0f9f5f0ad4786b9274c829be587961", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n    \n    $line = trim(fgets(STDIN));\n    $ar = explode(' ',$line);\n    $a1 = (int)$ar[0];\n    $a2 = (int)$ar[1];\n    $count = 0;\n    while($a1 !== 0 && $a2 !==0){\n        \n        if($a1 === 1 && $a2 === 1) break;\n        \n        \n        $count++;\n        if($a1 > $a2){\n            $a1 -= 2;\n            $a2 += 1;\n        }\n        else{\n            $a2  -= 2;\n            $a1 += 1;\n        }\n        \n    }\n\n\n    printf(\"%d\\n\",$count);\n\n\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "dp", "implementation"], "code_uid": "f013891f1937048b200d7c8edde42e5f", "src_uid": "ba0f9f5f0ad4786b9274c829be587961", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\nwhile(TRUE)\n{\n     if(($a == 0) || ($b == 0) || (($a == 1) && ($b == 1)))\n     {\n          break;\n     }\n     else\n     {\n          $c++;\n          if($a <= $b)\n          {\n               $a += 1;\n               $b -= 2;\n          }\n          else\n          {\n               $a -= 2;\n               $b += 1;\n          }\n     }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "dp", "implementation"], "code_uid": "93dee89f5a244e37b5f1952be28f9f4a", "src_uid": "ba0f9f5f0ad4786b9274c829be587961", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a1, $a2) = explode(\" \", trim(fgets(STDIN)));\n\n$n=0;\n\nwhile ($a1 >0 && $a2 > 0 && $a1*$a2 > 1) {\n\tif ($a1 < $a2) {\n\t\t$a1++;\n\t\t$a2 = $a2 - 2;\n\t\t$n++;\n\t} else {\n\t\t$a2++;\n\t\t$a1 = $a1 - 2;\n\t\t$n++;\n\t}\n}\n\nprint $n;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "dp", "implementation"], "code_uid": "9edb454a4b76f47ec93b43faf165d4a8", "src_uid": "ba0f9f5f0ad4786b9274c829be587961", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a1, $a2) = explode(\" \", trim(fgets(STDIN)));\n\n    $c=0;\n \n\n    while(  ($a1!=1 || $a2!=1) && $a1!=0 && $a2!=0 )\n\n    {\n         if($a1>$a2)    {$a2+=1;$a1-=2;}\n\t\telse   { $a1+=1;$a2-=2;}\n\t\t$c++;\n    }\n        echo $c;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "dp", "implementation"], "code_uid": "625549fc6eb5016026717bde092ec313", "src_uid": "ba0f9f5f0ad4786b9274c829be587961", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a1_a2 = explode(\" \", trim(fgets(STDIN)));\n$a1 = $a1_a2[0];\n$a2 = $a1_a2[1];\n$m = 0;\nwhile ($a1 > 0 and $a2 > 0) {\n    if ($a1 == 1 and $a2 == 1) {\n        break;\n    } else if ($a1 <= $a2) {\n        $a1 += 1;\n        $a2 -= 2;\n    } else {\n        $a2 += 1;\n        $a1 -= 2;\n    }\n    $m += 1;\n}\nprint $m;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "dp", "implementation"], "code_uid": "76ea097752b31966a2e016dddff31a8b", "src_uid": "ba0f9f5f0ad4786b9274c829be587961", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$flag = 1; //must be not zero for STDIN\n$in = 'php://stdin';\nif (!$flag)\n{\n    $in = \"in.data\";\n}\n$fd = fopen($in, \"r\");\nfscanf($fd, \"%d %d %d\\n\", $a, $b, $s);\n$a = abs($a);\n$b = abs($b);\n$ab = $a + $b;\n\nif ($ab <= $s)\n{\n    $answer=\"Yes\";\n}\nelse\n{\n\n    $answer=\"No\";\n}\n/* for \"Yes\" a+b and s must both be odd or even*/\nif (($ab+$s)&1)\n{\n    $answer=\"No\";\n}\nprint $answer.\"\\n\";\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "8e35952068acb17a371952d33867e366", "src_uid": "9a955ce0775018ff4e5825700c13ed36", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = fopen(\"php://stdin\", 'r');\n$n = stream_get_contents($s);\n$dum= explode(\"\\n\",$n);\n$argv=explode(\" \", $dum[0]);\n\n$iA = abs((int)$argv[0]);\n$iB = abs((int)$argv[1]);\n$iS = (int)$argv[2];\n\n\n$iS = $iS - $iA - $iB;\n\necho $iS > -1 && $iS % 2 == 0 ? 'Yes' : 'No';", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "53ceb07a0c84937a00457c8273a5fe67", "src_uid": "9a955ce0775018ff4e5825700c13ed36", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $s) = explode(\" \", trim(fgets(STDIN)));\n$s -= abs($a);\n$s -= abs($b);\nif($s <0 || $s %2 == 1) echo \"No\"; else echo \"Yes\"; \n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "12c42f2101a96887e7869a52f33bf8f6", "src_uid": "9a955ce0775018ff4e5825700c13ed36", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = abs($a) + abs($b);\n$e = $c - $d;\n$f = $e % 2;\nif(($f != 0) || ($c < $d))\n{\n    print \"No\";\n}\nelse\n{\n    print \"Yes\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "1dc5e5829ab678ea73d5b1f9bd1e7407", "src_uid": "9a955ce0775018ff4e5825700c13ed36", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($a, $b, $s) = readInput();\nif ($s < abs($a) + abs($b)) {\n\techo \"No\";\n} else {\n\tif (($s - abs($a) - abs($b)) % 2 == 0) {\n\t\techo \"Yes\";\n\t} else {\n\t\techo \"No\";\n\t}\n}\n\nfunction readInput() {\n\t$row = explode(\" \", trim(fgets(STDIN)));\n\t$a = $row[0];\n\t$b = $row[1];\n\t$s = $row[2];\n\treturn array($a, $b, $s);\n}\n\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "135a1d44b9ef5a5a9527b4b3a9070708", "src_uid": "9a955ce0775018ff4e5825700c13ed36", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// Example for test php input output\n\nlist($a, $b, $s) = explode(\" \", trim(fgets(STDIN)));\n\n$a = abs($a);\n$b = abs($b);\n$r = $a+$b;\n$resultOk = \"Yes\";\n$resultNo = \"No\";\n//fprintf(STDOUT, \"%1.0f\\n\", $resultOk);\nif ((($a+$b) == $s) || ((($a+$b) < $s) && ((($s-$r) % 2) == 0)) )  {\n    echo $resultOk;\n} else {\n    echo $resultNo;\n}", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "900889704897fd6e234c6bdf0b7b465c", "src_uid": "9a955ce0775018ff4e5825700c13ed36", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$in = explode(\" \", trim(fgets(STDIN)));\n$a = $in[0];\n$b = $in[1];\n$s = $in[2];\n$min = abs($a)+abs($b);\nif ($s<$min) {\n    echo \"No\";  \n} else {\n    $s -= $min;\n    if ($s%2 == 0) {\n        echo \"Yes\";\n    } else {\n        echo \"No\";\n    }   \n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "c4f5df2e93d8c570b44a4a55b4640136", "src_uid": "9a955ce0775018ff4e5825700c13ed36", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = implode(explode(\" \", trim(fgets(STDIN))));\n$c = \" 312831303130313130313031312831303130313130313031312831303130313130313031\";\n$d = \" 312931303130313130313031312831303130313130313031312831303130313130313031\";\n$e = \" 312831303130313130313031312931303130313130313031312831303130313130313031\";\n$f = \" 312831303130313130313031312831303130313130313031312931303130313130313031\";\n$g = strpos($c, $b);\n$h = strpos($d, $b);\n$i = strpos($e, $b);\n$j = strpos($f, $b);\nif(($g == TRUE) || ($h == TRUE) || ($i == TRUE) || ($j == TRUE))\n{\n     print \"Yes\";\n}\nelse\n{\n     print \"No\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7773037be9e78336418ba3674ff92783", "src_uid": "d60c8895cebcc5d0c6459238edbdb945", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = 'php://stdin';\n\n$input = fopen($in, \"r\");\n\n$a = explode(\" \", trim(fgets($input)));\n\n$otvet[\"01\"] = 0; $otvet[\"12\"] = 0; $otvet[\"20\"] = 0; \n$otvet[\"10\"] = 0; $otvet[\"21\"] = 0; $otvet[\"02\"] = 0; \n\nasort($a);\n\n$p = array_keys($a);\n\n$a[$p[2]] = $a[$p[2]] - ($a[$p[1]] - $a[$p[0]]);\n$otvet[$p[2].$p[1]] = $a[$p[1]] - $a[$p[0]];\n$a[$p[1]] -= ($a[$p[1]] - $a[$p[0]]);\n\nif ($a[$p[2]]%2!=0) {die(\"Impossible\");}\n\n$popal = $a[$p[2]]/2;\n$otvet[$p[2].$p[1]] += $popal;\n$otvet[$p[2].$p[0]] += $popal;\n\n$a[$p[1]] -= $popal;\n$a[$p[0]] -= $popal;\n\nif ($a[$p[1]]<0) die(\"Impossible\"); \nif ($a[$p[0]]<0) die(\"Impossible\");\nif ($a[$p[1]]!=$a[$p[0]]) die(\"Impossible\");\n\n$otvet[$p[1].$p[0]] += $a[$p[1]];\n\n$ot[0] = $otvet[\"01\"] + $otvet[\"10\"];\n$ot[1] = $otvet[\"12\"] + $otvet[\"21\"];\n$ot[2] = $otvet[\"20\"] + $otvet[\"02\"];\n\necho $ot[0].' '.$ot[1].' '.$ot[2];\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "graphs"], "code_uid": "25824d5c024e75627b66cf110ffd69fe", "src_uid": "b3b986fddc3770fed64b878fa42ab1bc", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction go($a, $b, $c) {\n    for ($i = 0; $i <= $a && $i <= $b; $i++) {\n        if ($a - $i + $b - $i == $c) {\n            printf (\"%d %d %d\\n\", $i, $b - $i, $a - $i);\n            return;\n        }\n    }\n    printf (\"Impossible\\n\");\n}\nfscanf(STDIN, \"%d %d %d\", $a, $b, $c);\ngo($a, $b, $c);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "graphs"], "code_uid": "a274beb839024251d874f97726f39890", "src_uid": "b3b986fddc3770fed64b878fa42ab1bc", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = trim(fgets(STDIN));\nif($a == $d)\n{\n     if(($a == 0) && ($d == 0))\n     {\n          if($c == 0)\n          {\n               print \"1\";\n          }\n          else\n          {\n               print \"0\";\n          }\n     }\n     else\n     {\n          print \"1\";\n     }\n}\nelse\n{\n     print \"0\";\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "fa619a09a1c69d69b5551cc834ab7d04", "src_uid": "b99578086043537297d374dc01eeb6f8", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = trim(fgets(STDIN));\n\nif($a == $d && $a > 0){\n\tfwrite(STDOUT, 1);\n}else{\n\tif($a == 0 && $c == 0 && $d == 0){\n\t\tfwrite(STDOUT, 1);\n\t}else{\n\t\tfwrite(STDOUT, 0);\n\t}\n}\n\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "5a481391ab8dba94e00737cb00e878c9", "src_uid": "b99578086043537297d374dc01eeb6f8", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf (STDIN, \"%d %d\", $A, $B);\n$X = 0;\n$Y = 0;\n$Z = 0;\nfor ($i = 1; $i <= 6; $i++) {\n    if (abs ($A - $i) < abs ($B - $i)) {\n        $X = $X + 1;\n    }\n    if (abs ($A - $i) == abs ($B - $i)) {\n        $Y = $Y + 1;\n    }\n    if (abs ($A - $i) > abs ($B - $i)) {\n        $Z = $Z + 1;\n    }\n}\nprintf (\"%d %d %d\\n\", $X, $Y, $Z);\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "c70dcc8c8195ffe6ba33ebc11d980487", "src_uid": "504b8aae3a3abedf873a3b8b127c5dd8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$f = fopen (\"php://stdin\", 'r' ) ;\n$a_win =0;\n$b_win =0;\n$draw =0;\n\n$lines = file(\"php://stdin\");\nfunction parseint($n){\n    return(intval($n));\n}\n\n$a_b = array_map(\"parseint\", explode(\" \",(strval($lines[0]))));\n\n for($i=1 ; $i<=6 ; $i++){\n     \n     if(abs($a_b[0] - $i ) < abs($a_b[1] - $i )){\n         $a_win++;\n         \n     }\n     elseif(abs($a_b[0] - $i ) > abs($a_b[1] - $i )){\n         $b_win++;\n         \n     }\n     else{\n         $draw++;\n         }\n     \n     \n     \n }\n \n print $a_win . \" \" . $draw . \" \" .$b_win ;\n\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "8eeffb94c2faf1483bb92d9baf8ec238", "src_uid": "504b8aae3a3abedf873a3b8b127c5dd8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\n$d = 0;\n$e = 0;\n$f = abs(6 - $a);\n$g = abs(6 - $b);\nif($f > $g)\n{\n    $c++;\n}\nelseif($f < $g)\n{\n    $d++;\n}\nelse\n{\n    $e++;\n}\n$f = abs(5 - $a);\n$g = abs(5 - $b);\nif($f > $g)\n{\n    $c++;\n}\nelseif($f < $g)\n{\n    $d++;\n}\nelse\n{\n    $e++;\n}\n$f = abs(4 - $a);\n$g = abs(4 - $b);\nif($f > $g)\n{\n    $c++;\n}\nelseif($f < $g)\n{\n    $d++;\n}\nelse\n{\n    $e++;\n}\n$f = abs(3 - $a);\n$g = abs(3 - $b);\nif($f > $g)\n{\n    $c++;\n}\nelseif($f < $g)\n{\n    $d++;\n}\nelse\n{\n    $e++;\n}\n$f = abs(2 - $a);\n$g = abs(2 - $b);\nif($f > $g)\n{\n    $c++;\n}\nelseif($f < $g)\n{\n    $d++;\n}\nelse\n{\n    $e++;\n}\n$f = abs(1 - $a);\n$g = abs(1 - $b);\nif($f > $g)\n{\n    $c++;\n}\nelseif($f < $g)\n{\n    $d++;\n}\nelse\n{\n    $e++;\n}\nprint $d . \" \" . $e . \" \" . $c;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "8b749259ce6259d902fe22038a45172e", "src_uid": "504b8aae3a3abedf873a3b8b127c5dd8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($a, $b) = explode(' ', getline());\n\n$a = intval($a);\n$b = intval($b);\n\n$winf = 0;\n$draw = 0;\n$wins = 0;\n\nfor ($i = 1; $i <= 6; $i ++) {\n  $diffa = abs($i - $a);\n  $diffb = abs($i - $b);\n  if ($diffa < $diffb) {\n    $winf ++;\n  } elseif ($diffa > $diffb) {\n    $wins ++;\n  } else {\n    $draw ++;\n  }\n}\n\nprint $winf . ' ' . $draw . ' ' . $wins;\n\nfunction getline() {\n  return trim(fgets(STDIN));\n}\n", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "d5cd01e3e7af8857ff08e869f76a49dc", "src_uid": "504b8aae3a3abedf873a3b8b127c5dd8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen(\"php://stdin\", 'r');\nlist($a, $b) = fscanf($f, \"%d %d\");\nfclose($f);\n\n$result = array(0, 0, 0);\n\nfor ($j = 1; $j <= 6; $j++) {\n\tif (abs($a - $j) < abs($b - $j)) {\n\t\t$result[0]++;\n\t}\n\telseif (abs($a - $j) > abs($b - $j)) {\n\t\t$result[2]++;\n\t}\n\telseif (abs($a - $j) == abs($b - $j)) {\n\t\t$result[1]++;\n\t}\n\n}\n\nprint implode(' ', $result);\n", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "06ac4678af91687bedcff3cde1c9042f", "src_uid": "504b8aae3a3abedf873a3b8b127c5dd8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf( STDIN, \"%d %d\", $a, $b );\n    $x = 0;\n    $y = 0;\n    $z = 0;\n    for ( $i = 1; $i <= 6; $i++ ) {\n        if ( abs( $a - $i ) < abs( $b - $i ) ) {\n            $x = $x + 1;\n        }\n        if ( abs( $a - $i ) == abs( $b - $i ) ) {\n            $y = $y + 1;\n        }\n        if ( abs( $a - $i ) > abs( $b - $i ) ) {\n            $z = $z + 1;\n        }\n    }\n    printf ( \"%d %d %d\\n\", $x, $y, $z );\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "1f97e9a0cec4b6394fe45fba5ff34667", "src_uid": "504b8aae3a3abedf873a3b8b127c5dd8", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\n$line = trim(fgets(STDIN)); // reads one line from STDIN\n\n$array=explode(\" \",$line);\n\n$a = $array[0];\n$b = $array[1];\n\nif($a==0&&$b==0) {\necho \"NO\";\ndie();\n}\n\nif(abs($a-$b)<=1) {\necho \"YES\";\n}\n\nelse\necho \"NO\";\n\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms", "implementation"], "code_uid": "81d0317a4436f250cce23721c2270d95", "src_uid": "ec5e3b3f5ee6a13eaf01b9a9a66ff037", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = abs($a - $b);\nif(($a == 0) && ($b == 0))\n{\n     print \"NO\";\n}\nelse\n{\n     if($c <= 1)\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms", "implementation"], "code_uid": "0528dfffb9d27f426c4f5a5eaf4f8ad0", "src_uid": "ec5e3b3f5ee6a13eaf01b9a9a66ff037", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php  \n// keep this function call here\n$file = fopen('php://stdin', 'r');\n// $file = fopen('input.txt', 'r');\n$line = fgets($file);\n$str = (int) $line;\n// $arr = explode(' ', $line);\n$s = 0;\nfor ($i = 1; $i < $str/2 + 1; $i++) {\n        if(($str - $i) % $i == 0){\n            $s++;\n        }\n}\necho $s;\n// echo search((int)$line, 0);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "54e77d84e6a3e6bb2ae267dc9b81911d", "src_uid": "89f6c1659e5addbf909eddedb785d894", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = readline();\n$i = 0;\nfor ($l = 1; $l < $n; $l++) {\n\tif ((($n-$l)%$l) == 0) {\n\t\t$i++;\n\t}\n}\necho $i;\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "7ae1b6a4f244ecc83bbb1fa2c47d59c1", "src_uid": "89f6c1659e5addbf909eddedb785d894", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\n\necho solution($n);\n\n// End of interface\n\nfunction solution($n){\n\t$res = 0;\n\tfor ($i=1; $i<$n; $i++){\n\t\tif ($n % $i === 0){\n\t\t\t$res++;\n\t\t}\n\t}\n\treturn $res;\n};\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "2ab779fd952f761bf3a37df9129c9352", "src_uid": "89f6c1659e5addbf909eddedb785d894", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$main = new MainClass;\n\t\t\nfscanf(STDIN, \"%d\", $n);\n\t\t\necho $main->solution($n);\n\n\nclass MainClass {\n\tpublic $problemLink = 'https://codeforces.com/problemset/problem/935/A';\n\tpublic $submissionLink = '';\n\n\tpublic function solution($n){\n\t\t$res = 0;\n\t\tfor ($i=1; $i<$n; $i++){\n\t\t\tif ($n % $i === 0){\n\t\t\t\t$res++;\n\t\t\t}\n\t\t}\n\treturn $res;\n\t}\n}", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "bff3870ea337a84838132063480eae0b", "src_uid": "89f6c1659e5addbf909eddedb785d894", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n// \"-თიყვაა!! გამოდი და დამილიე ეს ღვინოო!\"\n\n//  ( : )\n\n$in = fgets(STDIN);\n\n$mid = floor($in/2);\n\n$dataTutashkhia = 0;\n\nfor( $i = 1; $i <= $mid; $i++)\n    if(($in-$i) % $i == 0)\n        $dataTutashkhia++;\n\necho $dataTutashkhia;\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "192751a525b0a9a004c2d53c488e57d2", "src_uid": "89f6c1659e5addbf909eddedb785d894", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$n);\n$count=0;\n$divide=(int)($n/2);\n$sub=1;\n$i=1;\nwhile ($divide--) {\n$res=$n-($sub++);\nif(($res)%($i++)==0)\n$count++;\n//echo \"$res\\n\";\n}\necho \"$count\";", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "a0da9ec3915b4343c0b037e53df0d813", "src_uid": "89f6c1659e5addbf909eddedb785d894", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=fgets(STDIN);\nsettype($n,'int');\n$num=0;\nfor ($i=1;$i<=$n;$i++) { \n      if($n % $i == 0){\n         $num++;\n      }\n}\necho $num-1;", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "668838dd5a688eb062ae818ea1f4148f", "src_uid": "89f6c1659e5addbf909eddedb785d894", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 0;\nfor($x = 1; $x < $a; $x++)\n{\n     $c = $a - $x;\n     $d = $c % $x;\n     if($d == 0)\n     {\n          $b++;\n     }\n}\nprint $b;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "c8cd5e867e2d0805f532ae3cca4ef14d", "src_uid": "89f6c1659e5addbf909eddedb785d894", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\n\n$counter=0;\nfor ($i=1; $i<=$n; $i++) {\n    $l = $i;\n    $emp = $n-$l;\n    \n    if ($emp % $l === 0 && $l!=0 && $emp!=0) {\n        $div = $emp/$l;\n        if (($div+1) * $l === $n) {\n            $counter++;\n        }\n    }\n    \n}\necho $counter;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "6071afff01ae6b80e3cad1984ed1b5cc", "src_uid": "89f6c1659e5addbf909eddedb785d894", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = explode(\" \", trim(fgets(STDIN)));\n$e = array();\n$f = array();\n$g = 0;\nfor($x = 0; $x < $a * 2; $x++)\n{\n     $h = $g % 2;\n     $g++;\n     if($h == 0)\n     {\n          $e[count($e)] = $c[$x];\n     }\n     else\n     {\n          $f[count($f)] = $c[$x];\n     }\n}\n$i = array();\n$j = array();\n$k = 0;\nfor($x = 0; $x < $b * 2; $x++)\n{\n     $l = $k % 2;\n     $k++;\n     if($l == 0)\n     {\n          $i[count($i)] = $d[$x];\n     }\n     else\n     {\n          $j[count($j)] = $d[$x];\n     }\n}\n$m = array_merge($c, $d);\n$n = array_unique($m);\nsort($n);\n$o = array();\nfor($x = 0; $x < count($n); $x++)\n{\n     $o[$n[$x]] = 0;\n}\n$q4 = 0;\nfor($x = 0; $x < count($e); $x++)\n{\n     $p = min($e[$x], $f[$x]);\n     $q = max($e[$x], $f[$x]);\n     $q2 = 0;\n     $q3 = 0;\n     for($y = 0; $y < count($i); $y++)\n     {\n          $r = min($i[$y], $j[$y]);\n          $s = max($i[$y], $j[$y]);\n          if(($p == $r) && ($q == $s))\n          {\n               continue;\n          }\n          elseif(($p == $r) && ($q != $s))\n          {\n               $o[$p]++;\n               $q2 = 1;\n          }\n          elseif(($p == $s) && ($q != $r))\n          {\n               $o[$p]++;\n               $q2 = 1;\n          }\n          elseif(($q == $r) && ($p != $s))\n          {\n               $o[$q]++;\n               $q3 = 1;\n          }\n          elseif(($q == $s) && ($p != $r))\n          {\n               $o[$q]++;\n               $q3 = 1;\n          }\n          if(($q2 == 1) && (($q3 == 1)))\n          {\n               $q4 = 1;\n          }\n     }\n}\nfor($x = 0; $x < count($i); $x++)\n{\n     $p = min($i[$x], $j[$x]);\n     $q = max($i[$x], $j[$x]);\n     $q5 = 0;\n     $q6 = 0;\n     for($y = 0; $y < count($e); $y++)\n     {\n          $r = min($e[$y], $f[$y]);\n          $s = max($e[$y], $f[$y]);\n          if(($p == $r) && ($q == $s))\n          {\n               continue;\n          }\n          elseif(($p == $r) && ($q != $s))\n          {\n               $o[$p]++;\n               $q5 = 1;\n          }\n          elseif(($p == $s) && ($q != $r))\n          {\n               $o[$p]++;\n               $q5 = 1;\n          }\n          elseif(($q == $r) && ($p != $s))\n          {\n               $o[$q]++;\n               $q6 = 1;\n          }\n          elseif(($q == $s) && ($p != $r))\n          {\n               $o[$q]++;\n               $q6 = 1;\n          }\n          if(($q5 == 1) && (($q6 == 1)))\n          {\n               $q4 = 1;\n          }\n     }\n}\n$t = array_keys($o);\n$u = array();\nfor($x = 0; $x < count($o); $x++)\n{\n     if($o[$t[$x]] == TRUE)\n     {\n          $u[count($u)] = $t[$x];\n     }\n}\nif(count($u) == 1)\n{\n     print $u[0];\n}\nelseif($q4 == 0)\n{\n     print \"0\";\n}\nelse\n{\n     print \"-1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "bitmasks"], "code_uid": "b1926f7d969e04b65cd1962864fe684f", "src_uid": "cb4de190ae26127df6eeb7a1a1db8a6d", "difficulty": 1900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a == 0)\n{\n     print \"1\";\n}\nelse\n{\n     $a += 4;\n     $b = $a % 4;\n     if($b == 1)\n     {\n          print \"8\";\n     }\n     elseif($b == 2)\n     {\n          print \"4\";\n     }\n     elseif($b == 3)\n     {\n          print \"2\";\n     }\n     elseif($b == 0)\n     {\n          print \"6\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation", "number theory"], "code_uid": "6a9e2b8e4ef8d77795adb067541da4dd", "src_uid": "4b51b99d1dea367bf37dc5ead08ca48f", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$num=trim(fgets(STDIN));\nif ($num == 0) {\n    echo 1;\n}elseif ($num % 4 == 0) {\n    echo 6;\n}elseif($num %4 == 1) {\n    echo 8;\n}elseif ($num % 4 == 2) {\n    echo 4;\n}elseif ($num % 4 == 3) {\n    echo 2;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation", "number theory"], "code_uid": "a00eaf4787676707734711672c5f5307", "src_uid": "4b51b99d1dea367bf37dc5ead08ca48f", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$n);\n$root=sqrt($n);\nif($root==floor($root))\n\techo \"$root $root\";\nelse\n{\n\t\t$j=0;\n\t\t$quotient=array();\n\t\tfor ($i=1; $i <=ceil($n/2); $i++)\n\t\t { \n\t\t\t$factor=$n/$i;\n\t\t\tif($factor==floor($factor))\n\t\t\t{\n\t\t\t\t$quotient[$j++]=$factor;\n\t\t\t}\n\t\t }\n\n\t\t $quotient[count($quotient)]=1;\n\t\t //print_r($quotient);\n\t\t if(count($quotient)==2)\n\t\t \techo \"$quotient[1] $quotient[0]\\n\";\n\t\t else\n\t\t {\n\t\t   $maxDif=10000000;\n\n\t\t \tfor ($i=0; $i <count($quotient) ; $i++) \n\t\t \t{ \n\t\t \t\t for ($j=0; $j <count($quotient) ; $j++)\n\t\t \t\t  { \n\t\t \t\t \t  if($quotient[$i]*$quotient[$j]==$n)\n\t\t \t\t \t  {\n\t\t \t\t \t  \t$dif=abs($quotient[$i]-$quotient[$j]);\n\t\t \t\t \t  \t  if($dif<$maxDif)\n\t\t \t\t \t  \t  {\n\t\t \t\t \t  \t  \t$maxDif=$dif;\n\t\t \t\t \t  \t  \t $targetValue=\"$quotient[$j] $quotient[$i]\";\n\t\t \t\t \t  \t  }\n\t\t \t\t \t  }\n\t\t \t\t }\n\t\t \t}\n\t\t \techo \"$targetValue\\n\";\n\t\t }\n}\n", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "9b11a57e0cb9aeae8040382f863aecef", "src_uid": "f52af273954798a4ae38a1378bfbf77a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = floor(sqrt($a));\nwhile(TRUE)\n{\n     $c = $a % $b;\n     if($c == 0)\n     {\n          break;\n     }\n     else\n     {\n          $b--;\n     }\n}\nprint $b . \" \" . ($a / $b);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "7b768bc81294281876500de1967cb246", "src_uid": "f52af273954798a4ae38a1378bfbf77a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n/*\t$input = \"2 2\n..\n..\";*/\n\t$input = file_get_contents(\"php://stdin\");\n\n\t$split_text = explode(\"\\n\",$input);\n\t$row_col = explode(\" \",$split_text[0]); //index 0 store r, index 1 store c\n\t$max_eat = 0;\n\t$prev_trap=\"\";\n\t$row_crash_hit=0;\n\t$col_crash_hit=0;\n\n\n\tarray_splice($split_text, 0, 1);\n\n\tfor ($r=0; $r < $row_col[0]; $r++) { \n\t\t$row[$r]=$row_col[1];\n\t}\n\n\tfor ($c=0; $c < $row_col[1]; $c++) { \n\t\t$col[$c]=$row_col[0];\n\t}\n\n\tfor ($r=0; $r < $row_col[0] ; $r++) { \n\t\tfor ($c=0; $c < $row_col[1]; $c++) { \n\t\t\tif($split_text[$r][$c]=='S'){\n\t\t\t\t$row[$r]=0;\n\t\t\t\t$col[$c]=0;\n\t\t\t}\n\t\t}\n\t}\n\t\n\tfor ($r=0; $r < $row_col[0]; $r++) { \n\t\tif($row[$r]!=0){\n\t\t\t$row_crash_hit+=1;\n\t\t\t$max_eat+=$row[$r];\n\t\t}\n\t}\n\n\tfor ($c=0; $c < $row_col[1]; $c++) { \n\t\tif($col[$c]!=0){\n\t\t\t$col_crash_hit+=1;\n\t\t\t$max_eat+=$col[$c];\n\t\t}\n\t}\n\n\n\t$crash_hit=$row_crash_hit*$col_crash_hit;\n\t$max_eat=$max_eat-$crash_hit;\n\n\techo $max_eat;", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "4706cc54a30d0fa430be8b3216734a33", "src_uid": "ebaf7d89c623d006a6f1ffd025892102", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$e = 0;\n$f = array();\n$g = 0;\nfor($x = 1; $x <= $a; $x++)\n{\n    $c = trim(fgets(STDIN));\n    $d = str_split($c);\n    array_unshift($d, \" \");\n    unset($d[0]);\n    for($y = 1; $y <= $b; $y++)\n    {\n        if($d[$y] == \"S\")\n        {\n            $e++;\n            array_push($f, $y);\n        }\n    }\n    if($e == 0)\n    {\n        $g++;\n    }\n    $e = 0;\n}\n$h = array_unique($f);\nprint ($g * $b) + ($b - count($h)) * $a - ($g * ($b - count($h))); \n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "2d9fc0aa01c59c6d2e64f0d423398547", "src_uid": "ebaf7d89c623d006a6f1ffd025892102", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$h = fopen(\"php://stdin\", \"r\");\n\n$line=trim(fgets($h));\n$line_arr=explode(' ', $line);\n$a=intval(trim($line_arr[0]));\n$b=intval(trim($line_arr[1]));\n$c=intval(trim($line_arr[2]));\n\n$diff=$b-$a;\n\n$appears=false;\n\nif($c>0) {\n    if($diff>=0 && $diff%$c==0) {\n        $appears=true;\n    }\n} elseif ($c==0) {\n    if($b==$a) \n        $appears=true;\n} else {\n    if($diff<=0 && $diff%$c==0) {\n        $appears=true;\n    }\n}\n\nif($appears)\n    echo 'YES';\nelse \n    echo 'NO';", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "9d381716d4ab95e2b305c4d217af8995", "src_uid": "9edf42c20ddf22a251b84553d7305a7d", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = explode(\" \", trim(fgets(STDIN)));\n$a = $s[0];\n$b = $s[1];\n$c = $s[2];\n$p = false;\nif ($a == $b) {\n    $p = true;\n    print \"YES\";\n} else if (($b < $a) and ($c > 0)) {\n    $p = true;\n    print \"NO\";\n} else if (($b > $a) and ($c < 0)) {\n    $p = true;\n    print \"NO\";\n} else if (($a != $b) and ($c == 0)) {\n    $p = true;\n    print \"NO\";\n}\nif (!$p) {\n    $i = ($b - $a) % $c;\n    if ($i == 0) {\n        print \"YES\";\n    } else {\n        print \"NO\";\n    }\n}\n?>\n\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "4feb778b54bb06de7764fb1dbd2531b5", "src_uid": "9edf42c20ddf22a251b84553d7305a7d", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = \"1\";\n$c = 2;\nfor($x = 1; $x <= 10000; $x++)\n{\n     $b .= $c;\n     $c++;\n}\nprint $b[$a - 1];\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "2d698f9756c33075ac15e48dc2009e2c", "src_uid": "1503d761dd4e129fb7c423da390544ff", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$i = 0;\n$str = '0';\ndo {\n$i++;\n$str .= $i;\n} while(strlen($str) < 10000);\n\n$d = trim(file_get_contents('php://stdin'));\n\necho $str[$d];", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "48498055c53053725886ce8d3dee6959", "src_uid": "1503d761dd4e129fb7c423da390544ff", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n# 1177a\nfor ($k = trim(fgets(STDIN)), $s = '', $l = 0, $i = 1; $l < $k; $s .= $i, $l += strlen($i), $i++) {} echo $s[$k - 1];\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "358c7f12d2c0675b7aab29e5783a40b0", "src_uid": "1503d761dd4e129fb7c423da390544ff", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n# 1177b\n$stdin = STDIN;\n\n$k = trim(fgets($stdin));\n$str = '';\n$length = 0;\nfor ($i = 1; $length <= $k; $i++) {\n    $str .= $i;\n    $length += strlen($i);\n}\necho $str[$k - 1];\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "45701ede812686536d121b598812adc9", "src_uid": "1503d761dd4e129fb7c423da390544ff", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$stdin = fopen('php://stdin', 'r');\n$num = trim(fgets($stdin));\n$summ = 0;\nfor ($i = 2; $i < $num; $i++) {\n    $summ += get_summ($num, $i);\n}\n$count = $num - 2;\nfor ($i = $count; $i > 0; $i--) {\n    if ($summ % $i == 0 && $count % $i == 0) {\n        $summ /= $i;\n        $count /= $i;\n    }\n}\n\necho $summ . '/' . $count;\n\nfunction get_summ($num, $base) {\n    $result = 0;\n    while ($num) {\n        $result += $num % $base;\n        $num = floor($num / $base);\n    }\n    return $result;\n}\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "4552490afdaed7a9eef3693aa7298b57", "src_uid": "1366732dddecba26db232d6ca8f35fdc", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction debug($data, $die = true) {\n    echo '<pre>';\n\n    if (is_array($data)) {\n        print_r($data);\n    } else {\n        var_dump($data);\n    }\n\n    if ($die) {\n        die();\n    }\n\n    echo '</pre>';\n}\n\nfunction stdin() {\n    $stdin = @fopen('data.txt', 'r');\n    if (!$stdin) {\n        $stdin = fopen('php://stdin', 'r');\n    }\n\n    return $stdin;\n}\n\nfunction g() {\n    global $stdin;\n    return trim(fgets($stdin));\n}\n\n$stdin = stdin();\n/****************************************************** Solving block *****************************************************/\n$a = g();\n\nfunction conv($num, $base) {\n    $sum = 0;\n\n    while($num != 0) {\n        $sum += $num % $base;\n        $num = (int) ($num / $base);\n    }\n\n    return $sum;\n}\n\n$sum = 0;\nfor($i = 2; $i < $a; $i++) {\n    $sum += conv($a, $i);\n}\n\n$del = $a - 2;\n\nfor($i = $del; $i > 0; $i--) {\n    if($del % $i == 0 && $sum % $i == 0) {\n        $sum /= $i;\n        $del /= $i;\n    }\n}\n\necho $sum . '/' . $del;\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "f11dcf3741610895c302642ac4a5fa2e", "src_uid": "1366732dddecba26db232d6ca8f35fdc", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$data = file_get_contents('php://stdin');\n\n$output = '';\n\n$a = intval(trim($data));\n\n$sum = 0;\nfor ($i = $a - 1; $i >= 2; $i--) {\n\t$ac = $a;\n\twhile ($ac > 0) {\n\t\t$sum += ($m = $ac % $i);\n\t\t$ac = ($ac - $m) / $i;\n\t}\n}\n\n$z = $a - 2;\n\n$i = 2;\nwhile ($i <= $z) {\n\twhile (($sum % $i == 0) && ($z % $i == 0)) {\n\t\t$sum /= $i;\n\t\t$z /= $i;\n\t}\n\t$i++;\n}\n\n$output = \"$sum/$z\";\n\necho $output;\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "6179221c69d42a13e03f2c6153fe5b1d", "src_uid": "1366732dddecba26db232d6ca8f35fdc", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$b = 0;\nfor($x = 1; $x <= 8; $x++)\n{\n    $a = str_split(fgets(STDIN));\n    if(($a[0] != $a[1]) && ($a[0] == $a[2]) && ($a[0] != $a[3]) && ($a[0] == $a[4]) && ($a[0] != $a[5]) && ($a[0] == $a[6]) && ($a[0] != $a[7]))\n    {\n        $b++;\n    }\n}\nif($b == 8)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings"], "code_uid": "0cf7de7f8926bdcf46cd0cdacaf013df", "src_uid": "ca65e023be092b2ce25599f52acc1a67", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = Array();\n\n$fp = fopen('php://stdin', 'r');\n\nwhile(count($input) < 9 && $line = fgets($fp)) {\n    $input[] = substr($line,0,8); \n}\n\nfor($i=0;$i<8;$i++) {\n    //BBBBBBBB or WWWWWWWW\n    if(strpos($input[$i],'W')===false || strpos($input[$i],'B')===false) {\n        echo \"NO\";\n        exit();\n    }\n    \n    //BB, WW or B******B or W******W\n    if(strpos($input[$i],'BB')!==false || strpos($input[$i],'WW')!==false || $input[$i][0]==$input[$i][7]) {\n        echo \"NO\";\n        exit();\n    }\n    \n    if($i==0) {\n        //First line normalize\n        if($input[$i][0] != 'W') {\n            $input[$i] = move($input[$i]);\n        }\n        \n        //Last line normalize\n        if($input[$i] == $input[7]) {\n            $input[7] = move($input[7]);\n        }\n        \n    }\n    \n    //I like to move it move it\n    if($i>0 && $i<7) {\n        if($input[$i] == $input[$i-1]) {\n            $input[$i] = move($input[$i]);\n        }\n    }\n}\n\n//Final countdown\nif($input[0] == $input[2] && $input[0] == $input[4] && $input[0] == $input[6] && $input[1] == $input[3] && $input[1] == $input[5] && $input[1] == $input[7]) {\n    echo \"YES\";\n    exit();\n} else {\n    echo \"NO\";\n    exit();\n}\n\nfunction move($s) \n{\n    return substr($s,7,1) . substr($s,0,7);\n}", "lang_cluster": "PHP", "tags": ["brute force", "strings"], "code_uid": "b0f2300845ff77e50557289a2cb0a241", "src_uid": "ca65e023be092b2ce25599f52acc1a67", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \nfor($i=0; $i<8; ++$i)\n{\n    $a[$i] = trim(fgets(STDIN));\n}\n$c = 0;\nfor($i=0; $i<8; ++$i)\n{\n    if($a[$i]=='WBWBWBWB' or $a[$i]=='BWBWBWBW')\n    {\n        $c++;\n    }\n}\nif($c<8){echo \"NO\";}else{echo \"YES\";}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings"], "code_uid": "aaa572cdeeaf416b263517ef969006b4", "src_uid": "ca65e023be092b2ce25599f52acc1a67", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// Retrieve input\n$stdin = fopen('php://stdin', 'r');\nfunction g() {\n\tglobal $stdin;\n\treturn explode(\" \", trim(fgets($stdin)));\n}\n\n// Codeforces Contest 157 Div 2 Problem A\n$res = true;\nfor ($i = 0; $i < 8; $i++) {\n\t$str[$i] = g();\n\tif (($str[$i][0] != \"BWBWBWBW\") && ($str[$i][0] != \"WBWBWBWB\")) {$res = false;}\n}\nif ($res) {echo \"YES\";} else {echo \"NO\";}\n\n// End of submission file\n// Submission by chaotic_iak\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings"], "code_uid": "d6388298cbb3646d672fcf4606b89512", "src_uid": "ca65e023be092b2ce25599f52acc1a67", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\":\", trim(fgets(STDIN)));\nlist($c, $d) = explode(\":\", trim(fgets(STDIN)));\nif(($c == 0) && ($d == 0))\n{\n    print $a . \":\" . $b;\n}\nelseif(($c == $a) && ($d == $b))\n{\n    print \"00:00\";\n}\nelseif(($c <= $a) && ($d <= $b))\n{\n    $e = $a - $c;\n    $f = $b - $d;\n    if(strlen($e) == 1)\n    {\n        $g = \"0\" . $e;\n    }\n    else\n    {\n        $g = $e;\n    }\n    if(strlen($f) == 1)\n    {\n        $h = \"0\" . $f;\n    }\n    else\n    {\n        $h = $f;\n    }\n    print $g . \":\" . $h;\n}\nelseif(($c < $a) && ($d >= $b))\n{\n    $e = $a - $c - 1;\n    $f = 60 - ($d - $b);\n    if(strlen($e) == 1)\n    {\n        $g = \"0\" . $e;\n    }\n    else\n    {\n        $g = $e;\n    }\n    if(strlen($f) == 1)\n    {\n        $h = \"0\" . $f;\n    }\n    else\n    {\n        $h = $f;\n    }\n    print $g . \":\" . $h;\n}\nelseif(($c >= $a) && ($d <= $b))\n{\n    $e = 24 + $a - $c;\n    $f = $b - $d;\n    if(strlen($e) == 1)\n    {\n        $g = \"0\" . $e;\n    }\n    else\n    {\n        $g = $e;\n    }\n    if(strlen($f) == 1)\n    {\n        $h = \"0\" . $f;\n    }\n    else\n    {\n        $h = $f;\n    }\n    print $g . \":\" . $h;\n}\nelseif(($c >= $a) && ($d >= $b))\n{\n    $e = 24 + $a - $c - 1;\n    $f = 60 - ($d - $b);\n    if(strlen($e) == 1)\n    {\n        $g = \"0\" . $e;\n    }\n    else\n    {\n        $g = $e;\n    }\n    if(strlen($f) == 1)\n    {\n        $h = \"0\" . $f;\n    }\n    else\n    {\n        $h = $f;\n    }\n    print $g . \":\" . $h;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "990c450ad079ed05c998eb5eb54d92be", "src_uid": "595c4a628c261104c8eedad767e85775", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n\n$a = fgets($f, 1024);\n$b = fgets($f, 1024);\n\n$a = \"2014-01-01 \".$a;\n\n$t = strtotime($a);\n\n$q = explode(':', trim($b));\n\n$t-= ($q[0]*60 + $q[1])*60;\n\nprint date(\"H:i\", $t);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c3c3c345b2e7645d87826110fd58edb0", "src_uid": "595c4a628c261104c8eedad767e85775", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($h1, $m1) = explode(':', getline());\nlist($hd, $md) = explode(':', getline());\n\n$h1 = (int)$h1;\n$m1 = (int)$m1;\n\n$hd = (int)$hd;\n$md = (int)$md;\n\nif ($m1 < $md) {\n  $m1 += 60;\n  $h1 --;\n}\n\n$h2 = ($h1 - $hd + 24) % 24;\n$m2 = ($m1 - $md);\n\nprintf('%02d:%02d', $h2, $m2);\n\nfunction getline() {\n  return trim(fgets(STDIN));\n}\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4ad0a3faf6cad4fb81b251e02b39a9f0", "src_uid": "595c4a628c261104c8eedad767e85775", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nclass InputReader {\n\tprotected $_fh;\n\t\n\tpublic function __construct($fileHandler = STDIN) \n\t{\n\t\t$this->_fh = $fileHandler;\n\t}\n\t\n\tpublic function readInt() \n\t{\n\t\t$d = trim(fgets($this->_fh));\n\t\t\n\t\treturn (int)$d;\n\t}\n\t\n\tpublic function readArrayOfInt($size, $indexFrom = 0) \n\t{\n\t\t$a = [];\n\t\t$ind = $indexFrom;\n\t\tforeach (explode(' ', fgets($this->_fh)) as $item) {\n\t\t\t$a[$ind++] = (int)$item;\n\t\t}\n\t\t\n\t\treturn $a;\n\t}\n\t\n\tpublic function readArrayOfString($size, $indexFrom = 0) \n\t{\n\t\t$a = [];\n\t\t$ind = $indexFrom;\n\t\tforeach (explode(' ', fgets($this->_fh)) as $item) {\n\t\t\t$a[$ind++] = $item;\n\t\t}\n\t\t\n\t\treturn $a;\n\t}\n}\n\nfunction ntimes($n, $func, $returnResults = false) {\n\t$a = [];\n\tfor ($i=1; $i<=$n; $i++) {\n\t\t$result = $func();\n\t\t\n\t\tif ($returnResults) {\n\t\t\t$a[$i] = $result;\n\t\t}\n\t}\n\t\n\treturn $a;\n}\n\n\nfunction primes($limit)\n{\n\t$a = str_repeat(chr(85), ($limit>>3) + 1);\n\t$a[0] = chr(83);\n\tfor ($i=3; $i*$i < $limit; $i+=2) {\n\t\tif (ord($a[$i>>3]) & (1<<($i%8))) {\n\t\t\t;\n\t\t} else {\n\t\t\tfor ($k=$i; $k*$i<$limit; $k++) {\n\t\t\t\t$n = $k*$i;\n\t\t\t\t$a[$n>>3] = chr(ord($a[$n>>3]) | (1<<($n%8)));\n\t\t\t}\n\t\t}\n\t}\n\n\tyield 2;\n\tfor ($i=3; $i<$limit; $i+=2) {\n\t\tif (!(ord($a[$i>>3]) & (1<<($i%8)))) {\n\t\t\tyield $i;\n\t\t}\n\t}\n}\n\n\n\n\n\n$ir = new InputReader();\n\n$n = abs($ir->readInt());\n$p = [];\nforeach (primes(1e3) as $prime) {\n\t$p[] = $prime;\n}\n\n$powers = [];\nif ($n==1) {\n\t$min = 1;\n\t$steps = 0;\n} elseif ($n==0) {\n\t$min = 0;\n\t$steps = 0;\n} else {\n\twhile ($n>1) {\n\t\t$foundPrime = false;\n\t\tforeach($p as $prime) {\n\t\t\tif ($n%$prime == 0) {\n\t\t\t\t$foundPrime = true;\n\t\t\t\tif (!isset($powers[$prime])) {\n\t\t\t\t\t$powers[$prime] = 0;\n\t\t\t\t}\n\t\t\t\t\n\t\t\t\t$powers[$prime] += 1;\n\t\t\t\t$n /= $prime;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t\t\n\t\tif(!$foundPrime) {\n\t\t\tif (!isset($powers[$n])) {\n\t\t\t\t$powers[$n] = 0;\n\t\t\t}\n\t\t\t$powers[$n] += 1;\n\t\t\t$n = 1;\n\t\t}\n\t}\n\t\n\t$min = array_product(array_keys($powers));\n\t\n\t$maxP = max($powers);\n\t$minP = min($powers);\n\t\n\tif ($maxP == 1) {\n\t\t$steps = 0;\n\t} else {\n\t\t$l2 = log($maxP)/log(2);\n\t\t\n\t\t$steps = 1 + (int)$l2;\n\t\tif (intval($l2) < $l2) {\n\t\t\t$steps++;\n\t\t} else {\n\t\t\tif ($maxP==$minP) {\n\t\t\t\t$steps--;\n\t\t\t}\n\t\t}\n\t}\n}\n// factorize and grab max power\n// echo [log2(power)] + 1 \n\necho $min . ' ' . $steps.\"\\n\";\n\n//}\n\n\n\n\n", "lang_cluster": "PHP", "tags": ["math", "greedy", "number theory"], "code_uid": "983d707d5413c5f22c4289fc76fcc7f1", "src_uid": "212cda3d9d611cd45332bb10b80f0b56", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$k = trim(fgets(STDIN));\n\t$cards = explode(' ', trim(fgets(STDIN)));\n\t\n\t$c1 = str_split($cards[0]);\n\t$c2 = str_split($cards[1]);\n\t$m = [];\n\t$m['6'] = 1;\n\t$m['7'] = 2;\n\t$m['8'] = 3;\n\t$m['9'] = 4;\n\t$m['T'] = 5;\n\t$m['J'] = 6;\n\t$m['Q'] = 7;\n\t$m['K'] = 8;\n\t$m['A'] = 9;\n\tif(($c1[1] == $k && $c2[1] != $k) || ($m[$c1[0]] > $m[$c2[0]] && $c1[1] == $c2[1]) || ($c1[1] == $k && $c2[1] == $k && $m[$c1[0]] > $m[$c2[0]])){\n\t\techo 'YES';\n\t}else{\n\t\techo 'NO';\n\t}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0f2e591717b660099d2d5d4586e53396", "src_uid": "da13bd5a335c7f81c5a963b030655c26", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split(trim(fgets(STDIN)));\n$c = $b[0]; // достоинство\n$d = $b[1]; // масть\n$e = $b[3]; // достоинство\n$f = $b[4]; // масть\n$g = array(\"6\", \"7\", \"8\", \"9\", \"T\", \"J\", \"Q\", \"K\", \"A\");\n$h = 0;\n$i = 0;\nif(($d == $a) && ($f != $a))\n{\n    print \"YES\";\n}\nelseif(($d != $a) && ($f == $a))\n{\n    print \"NO\";\n}\nelseif((($d == $a) && ($f == $a)) || (($d == \"S\") && ($f == \"S\")) || (($d == \"H\") && ($f == \"H\")) || (($d == \"D\") && ($f == \"D\")) || (($d == \"C\") && ($f == \"C\")))\n{\n    for($x = 0; $x < count($g); $x++)\n    {\n        if($g[$x] == $c)\n        {\n            $h = $x;\n        }\n        if($g[$x] == $e)\n        {\n            $i = $x;\n        }\n    }\n    if($h > $i)\n    {\n        print \"YES\";\n    }\n    else\n    {\n        print \"NO\";\n    }\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "61fc6c4c503f86cb2ad1d630b5abe5b3", "src_uid": "da13bd5a335c7f81c5a963b030655c26", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$k=trim(fgets(STDIN));\n$c=explode(' ', trim(fgets(STDIN)));\nswitch($c[0][0]) {\ncase 'T': $d[0]=10; break;\ncase 'J': $d[0]=11; break;\ncase 'Q': $d[0]=12; break;\ncase 'K': $d[0]=13; break;\ncase 'A': $d[0]=14; break;\n}\nif(!isset($d[0])) $d[0]=$c[0][0];\nswitch($c[1][0]) {\ncase 'T': $d[1]=10; break;\ncase 'J': $d[1]=11; break;\ncase 'Q': $d[1]=12; break;\ncase 'K': $d[1]=13; break;\ncase 'A': $d[1]=14; break;\n}\nif(!isset($d[1])) $d[1]=$c[1][0];\nif(($c[0][1]==$c[1][1]) && ($d[0]>$d[1])) echo 'YES';\nelseif(($c[0][1]==$k) && ($c[1][1]!=$k)) echo 'YES';\nelse echo 'NO';\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "f5c141fcc66a23aecbf0516ca29aecf1", "src_uid": "da13bd5a335c7f81c5a963b030655c26", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$fp = fopen('php://stdin', 'r');\n$n = (int)fgets($fp);\nfor($a = 0; $a <= $n/1234567; ++$a) {\n\t$m1 = $n - $a*1234567;\n\tfor($b = 0; $b <= $m1/123456; ++$b) {\n\t\t$m2 = $m1 - $b*123456;\n\t\tif (!($m2 % 1234)) {\n\t\t\tdie('YES');\n\t\t}\n\t}\n}\ndie('NO');", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "94afa9a29339f717805c288fa1f1fa53", "src_uid": "72d7e422a865cc1f85108500bdf2adf2", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a == 11403961)\n{\n     print \"YES\";\n}\nelse\n{\n     $b = $a % 1234567;\n     $c = $a % 123456;\n     $d = $a % 1234;\n     if($b == 0)\n     {\n          print \"YES\";\n     }\n     elseif($c == 0)\n     {\n          print \"YES\";\n     }\n     elseif($d == 0)\n     {\n          print \"YES\";\n     }\n     else\n     {\n          $e = $a % 1234567;\n          $f = $e % 123456;\n          $g = $e % 1234;\n          if(($f == 0) || ($g == 0))\n          {\n               print \"YES\";\n          }\n          else\n          {\n               $e = $a % 123456;\n               $f = $e % 1234567;\n               $g = $e % 1234;\n               if(($f == 0) || ($g == 0))\n               {\n                    print \"YES\";\n               }\n               else\n               {\n                    $e = $a % 1234;\n                    $f = $e % 1234567;\n                    $g = $e % 123456;\n                    if(($f == 0) || ($g == 0))\n                    {\n                         print \"YES\";\n                    }\n                    else\n                    {\n                         $h = 0;\n                         for($x = 1; $x <= 1000; $x++)\n                         {\n                              $i = $a - $x * 1234567;\n                              if($i <= 0)\n                              {\n                                   break;\n                              }\n                              for($y = 1; $y <= 1000; $y++)\n                              {\n                                   $i -= 123456;\n                                   if($i <= 0)\n                                   {\n                                        break;\n                                   }\n                                   $j = $i % 1234;\n                                   if($j == 0)\n                                   {\n                                        $h = 1;\n                                        break;\n                                   }\n                                   elseif($i <= 0)\n                                   {\n                                        break;\n                                   }\n                              }\n                              if($h == 1)\n                              {\n                                   break;\n                              }\n                         }\n                         if($h == 1)\n                         {\n                              print \"YES\";\n                         }\n                         else\n                         {\n                              print \"NO\";\n                         }\n                    }\n               }\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "fcc412098f1ce5eb31382932fedd0319", "src_uid": "72d7e422a865cc1f85108500bdf2adf2", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array();\n$c = array();\n$d = array();\nfor($x = 0; $x < $a; $x++)\n{\n     list($e, $f, $g) = explode(\" \", trim(fgets(STDIN)));\n     $b[$x] = $e;\n     $c[$x] = $f;\n     $d[$x] = $g;\n}\n$h = array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9);\n$i = array();\nfor($x = 0; $x < 7; $x++)\n{\n     for($x2 = $x + 1; $x2 < 8; $x2++)\n     {\n          for($x3 = $x2 + 1; $x3 < 9; $x3++)\n          {\n               for($x4 = $x3 + 1; $x4 < 10; $x4++)\n               {\n                    $j = $h[$x] . $h[$x2] . $h[$x3] . $h[$x4];\n                    $i[count($i)] = $j;\n                    $j = $h[$x] . $h[$x2] . $h[$x4] . $h[$x3];\n                    $i[count($i)] = $j;\n                    $j = $h[$x] . $h[$x3] . $h[$x2] . $h[$x4];\n                    $i[count($i)] = $j;\n                    $j = $h[$x] . $h[$x3] . $h[$x4] . $h[$x2];\n                    $i[count($i)] = $j;\n                    $j = $h[$x] . $h[$x4] . $h[$x2] . $h[$x3];\n                    $i[count($i)] = $j;\n                    $j = $h[$x] . $h[$x4] . $h[$x3] . $h[$x2];\n                    $i[count($i)] = $j;\n                    $j = $h[$x2] . $h[$x] . $h[$x3] . $h[$x4];\n                    $i[count($i)] = $j;\n                    $j = $h[$x2] . $h[$x] . $h[$x4] . $h[$x3];\n                    $i[count($i)] = $j;\n                    $j = $h[$x2] . $h[$x3] . $h[$x] . $h[$x4];\n                    $i[count($i)] = $j;\n                    $j = $h[$x2] . $h[$x3] . $h[$x4] . $h[$x];\n                    $i[count($i)] = $j;\n                    $j = $h[$x2] . $h[$x4] . $h[$x] . $h[$x3];\n                    $i[count($i)] = $j;\n                    $j = $h[$x2] . $h[$x4] . $h[$x3] . $h[$x];\n                    $i[count($i)] = $j;\n                    $j = $h[$x3] . $h[$x] . $h[$x2] . $h[$x4];\n                    $i[count($i)] = $j;\n                    $j = $h[$x3] . $h[$x] . $h[$x4] . $h[$x2];\n                    $i[count($i)] = $j;\n                    $j = $h[$x3] . $h[$x2] . $h[$x] . $h[$x4];\n                    $i[count($i)] = $j;\n                    $j = $h[$x3] . $h[$x2] . $h[$x4] . $h[$x];\n                    $i[count($i)] = $j;\n                    $j = $h[$x3] . $h[$x4] . $h[$x] . $h[$x2];\n                    $i[count($i)] = $j;\n                    $j = $h[$x3] . $h[$x4] . $h[$x2] . $h[$x];\n                    $i[count($i)] = $j;\n                    $j = $h[$x4] . $h[$x] . $h[$x2] . $h[$x3];\n                    $i[count($i)] = $j;\n                    $j = $h[$x4] . $h[$x] . $h[$x3] . $h[$x2];\n                    $i[count($i)] = $j;\n                    $j = $h[$x4] . $h[$x2] . $h[$x] . $h[$x3];\n                    $i[count($i)] = $j;\n                    $j = $h[$x4] . $h[$x2] . $h[$x3] . $h[$x];\n                    $i[count($i)] = $j;\n                    $j = $h[$x4] . $h[$x3] . $h[$x] . $h[$x2];\n                    $i[count($i)] = $j;\n                    $j = $h[$x4] . $h[$x3] . $h[$x2] . $h[$x];\n                    $i[count($i)] = $j;\n               }\n          }\n     }\n}\n$k = array();\nfor($x = 0; $x < count($i); $x++)\n{\n     $l = $i[$x];\n     $m = 0;\n     for($y = 0; $y < $a; $y++)\n     {\n          $n = $b[$y];\n          $o = $c[$y];\n          $p = $d[$y];\n          $q = 0;\n          $r = 0;\n          for($z = 0; $z < 4; $z++)\n          {\n               if($l[$z] == $n[$z])\n               {\n                    $q++;\n               }\n          }\n          for($z = 0; $z < 4; $z++)\n          {\n               for($z2 = 0; $z2 < 4; $z2++)\n               {\n                    if($z != $z2)\n                    {\n                         if($l[$z] == $n[$z2])\n                         {\n                              $r++;\n                         }\n                    }\n               }\n          }\n          if(($o != $q) || ($p != $r))\n          {\n               $m = 1;\n               break;\n          }\n     }\n     if($m == 0)\n     {\n          $k[count($k)] = $l;\n     }\n}\nif(count($k) == 0)\n{\n     print \"Incorrect data\";\n}\nelseif(count($k) == 1)\n{\n     print $k[0];\n}\nelseif(count($k) > 1)\n{\n     print \"Need more data\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "457ac63dbbecc2664262ef3d036bfd6d", "src_uid": "142e5f2f08724e53c234fc2379216b4c", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = $a[0] . $a[1];\n$c = $a[3] . $a[4];\n$b = intval($b);\n$c = intval($c);\n$d = 0;\nwhile(TRUE)\n{\n     if(strlen($b) == 1)\n     {\n          $b = \"0\" . $b;\n     }\n     if(strlen($c) == 1)\n     {\n          $c = \"0\" . $c;\n     }\n     $b = strval($b);\n     $c = strval($c);\n     if(($b[0] == $c[1]) && ($b[1] == $c[0]))\n     {\n          break;\n     }\n     else\n     {\n          $d++;\n          $b = intval($b);\n          $c = intval($c);\n          if($c == 59)\n          {\n               if($b == 23)\n               {\n                    $b = 0;\n                    $c = 0;\n               }\n               else\n               {\n                    $b++;\n                    $c = 0;\n               }\n          }\n          else\n          {\n               $c++;\n          }\n     }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "75024e04b853096dd0cf12c96e7ff092", "src_uid": "3ad3b8b700f6f34b3a53fdb63af351a5", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$time = explode(\":\", trim(fgets(STDIN)));\n\t$h = $time[0];\n\t$m = $time[1];\n\n\tif (strcmp($h, strrev($m)) != 0) {\n\t\t$h = intval($h);\n\t\t$m = intval($m);\n\t\tfor ($i = 1; $i < 3600; $i++) {\n\t\t\t$m++;\n\t\t\tif ($m == 60) {\n\t\t\t\t$h++;\n\t\t\t\tif ($h == 24)\n\t\t\t\t\t$h = 0;\n\t\t\t\t$m = 0;\n\t\t\t}\n\t\t\t\n\t\t\tif (strcmp(($h < 10 ? '0'.$h : $h), strrev(($m < 10 ? '0'.$m : $m))) == 0) {\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\n\t\tprint $i;\n\t} else {\n\t\tprint 0;\n\t}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "f5b9de7b44b4f90b0409adda3529a6af", "src_uid": "3ad3b8b700f6f34b3a53fdb63af351a5", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$time=trim(fgets(STDIN));\n$list=explode(\":\",$time);\n$count=0;\nwhile(true) {\n    $cur = strrev($time);\n    if ($cur == $time) {\n        echo $count;\n        break;\n    }\n    $list[0] = (intval($list[0]) + (intval($list[1]) + 1) / 60) % 24;\n    $list[1] = (intval($list[1]) + 1) % 60;\n    $list[0] = str_pad(strval($list[0]), 2, '0', STR_PAD_LEFT);\n    $list[1] = str_pad(strval($list[1]), 2, '0', STR_PAD_LEFT);\n    $time = implode(':', $list);\n    $count++;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "a95b8c5625f3f03b001dab136c9f0dfc", "src_uid": "3ad3b8b700f6f34b3a53fdb63af351a5", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = $a[0] . $a[1];\n$c = $a[3] . $a[4];\n$b = intval($b);\n$c = intval($c);\n$d = 0;\nwhile(TRUE)\n{\n     if(strlen($b) == 1)\n     {\n          $b = \"0\" . $b;\n     }\n     if(strlen($c) == 1)\n     {\n          $c = \"0\" . $c;\n     }\n     $b = strval($b);\n     $c = strval($c);\n     if(($b[0] == $c[1]) && ($b[1] == $c[0]))\n     {\n          break;\n     }\n     else\n     {\n          $d++;\n          $b = intval($b);\n          $c = intval($c);\n          if($c == 59)\n          {\n               if($b == 23)\n               {\n                    $b = 0;\n                    $c = 0;\n               }\n               else\n               {\n                    $b++;\n                    $c = 0;\n               }\n          }\n          else\n          {\n               $c++;\n          }\n     }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "fc598983d314d2e1f4d7f58736e9da13", "src_uid": "3ad3b8b700f6f34b3a53fdb63af351a5", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$file = file_get_contents('php://stdin');\n\n$file = preg_replace(\"/[^0-9a-z]+/i\",\" \",$file);\n\n$number = explode(' ', $file);\n\n// print_r($number);\n$x = $number[0];\n$y = $number[1];\n$z = $number[2];\n$t1 = $number[3];\n$t2 = $number[4];\n$t3 = $number[5];\n\n/*echo 'Лифт между этажами до Маши = ' . abs($z - $x) * $t2 . '<br>';\necho 'Лифт между этажами от Маши до этажа = ' . abs($x - $y) * $t2 . '<br>';\necho 'Время дверей лифта = ' . 3 * $t3 . '<br>';\necho 'Маша пешком = ' . abs($y - $x) * $t1 . '<br>';*/\n\n\nif ((abs($z - $x) * $t2 + abs($x - $y) * $t2 + 3 * $t3) <= (abs($y - $x) * $t1)) file_put_contents('php://stdout', 'YES');\nelse file_put_contents('php://stdout', 'NO');\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "52114a1c8f57219cc8ab54bb4d422282", "src_uid": "05cffd59b28b9e026ca3203718b2e6ca", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e, $f) = explode(\" \", trim(fgets(STDIN)));\n$g = abs($a - $b) * $d;\n$h = (abs($a - $c) * $e) + ($f * 3) + (abs($a - $b) * $e);\nif($h <= $g)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "abe87468ba9ee036898e1ee1618c03b6", "src_uid": "05cffd59b28b9e026ca3203718b2e6ca", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$board = array();\nfunction calc()\n{\n    global $board;\n    for ($i = 0; $i < 8; $i++)\n    {\n        $board[$i] = rtrim(fgets(STDIN));\n    }\n    if (dfs(7, 0, 0)) echo \"WIN\\n\";\n    else echo \"LOSE\\n\";\n}\n\nfunction dfs($y, $x, $turn)\n{\n    global $board;\n    if ($y - $turn >= 0 && $board[$y - $turn][$x] == 'S') return false;\n    if ($turn >= 8) return true;\n    for ($vy = -1; $vy <= 1; $vy++)\n    {\n        for ($vx = -1; $vx <= 1; $vx++)\n        {\n            $ny = $y + $vy;\n            $nx = $x + $vx;\n            if ($ny < 0 || $ny >= 8 || $nx < 0 || $ny >= 8) continue;\n            if ($ny - $turn >= 0 && $board[$ny - $turn][$nx] == 'S') continue;\n            if (dfs($ny, $nx, $turn + 1)) return true;\n\n        }\n    }\n    return false;\n}\n\ncalc();\n?>\n", "lang_cluster": "PHP", "tags": ["dfs and similar", "implementation", "graphs"], "code_uid": "8c3a055f49186b9c7b138d9a2a754bcc", "src_uid": "f47e4ab041288ba9567c19930eb9a090", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction calc()\n{\n    $board = array();\n    for ($i = 0; $i < 8; $i++)\n    {\n        $board[$i] = rtrim(fgets(STDIN));\n    }\n    if (calc2($board)) echo \"WIN\\n\";\n    else echo \"LOSE\\n\";\n}\n\nfunction calc2($board)\n{\n    $now = array_fill(0, 8, array());\n    $now[7][0] = true;\n    for ($turn = 0; $turn < 30; $turn++)\n    {\n        $next = array_fill(0, 8, array());\n        for ($y = 0; $y < 8; $y++)\n        {\n            for ($x = 0; $x < 8; $x++)\n            {\n                if ($y - $turn >= 0 && $board[$y - $turn][$x] == 'S') continue;\n                if ($y - ($turn + 1) >= 0 && $board[$y - ($turn + 1)][$x] == 'S') continue;\n                for ($vy = -1; $vy <= 1; $vy++)\n                {\n                    for ($vx = -1; $vx <= 1; $vx++)\n                    {\n                        $ny = $y + $vy;\n                        $nx = $x + $vx;\n                        if (ok($ny, $nx) && $now[$ny][$nx])\n                        {\n                            $next[$y][$x] = true;\n                            if ($board[$y][$x] == 'A') return true;\n                        }\n                    }\n                }\n            }\n        }\n        $now = $next;\n    }\n    return false;\n}\n\nfunction ok($y, $x)\n{\n    return $x >= 0 && $y >= 0 && $x < 8 && $y < 8;\n}\n\ncalc();\n?>\n", "lang_cluster": "PHP", "tags": ["dfs and similar", "implementation", "graphs"], "code_uid": "2455024a10ec158b9dca0dc750d5cae4", "src_uid": "f47e4ab041288ba9567c19930eb9a090", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$round = 0;\n$area = array();\nfor( $i=0; $i<8; $i++) {\n    $area[$round][$i] = trim(fgets(STDIN));\n}\nwhile(1) {\n    $area[$round+1]=$area[$round];\n    for($x=0;$x<8;$x++) {\n        for($y=7;$y>=0;$y--) {\n            if(in_array($area[$round][$y][$x], array('M'))) {\n                for($i=-1;$i<2;$i++) {\n                    for($n=-1;$n<2;$n++) {\n                        if(($n==0&&$i==0)||($y+$n)<0||($x+$i)<0||($x+$i)>7||($y+$n)>7){\n                            continue;\n                        }\n                        if(in_array($area[$round][$y+$n][$x+$i], array('A'))){\n                            die('WIN');\n                        }\n                        if(in_array($area[$round][$y+$n][$x+$i], array('.'))){\n                            $area[$round+1][$y+$n][$x+$i] = 'M';\n                        }\n                    }\n                }\n            }\n        }\n    }\n    $round++;\n    for($x=0;$x<8;$x++) {\n        for($y=7;$y>=0;$y--) {\n            if(in_array($area[$round][$y][$x], array('S'))) {\n                $area[$round][$y][$x] = '.';\n                if(($y+1)>7) {\n                    continue;\n                }\n                $area[$round][$y+1][$x] = 'S';\n            }\n        }\n    }\n\n    $mcount = 0;\n    for($x=0;$x<8;$x++) {\n        for($y=7;$y>=0;$y--) {\n            if(in_array($area[$round][$y][$x], array('M'))) {\n                $mcount++;\n            }\n        }\n    }\n\n    /*echo(\"\\n\".'Round: '.$round.\"\\n\");\n    for( $i=0; $i<8; $i++) {\n        echo($area[$round-1][$i].'   '.$area[$round][$i].\"\\n\");\n    }\n    echo('M:'.$mcount.\"\\n\");*/\n    if($mcount==0) {\n        die(\"LOSE\");\n    }\n}", "lang_cluster": "PHP", "tags": ["dfs and similar", "implementation", "graphs"], "code_uid": "aac5e776d811756576af62a68ffc69f0", "src_uid": "f47e4ab041288ba9567c19930eb9a090", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\nfor($x = 1; $x <= $a; $x++)\n{\n     if($x == $b)\n     {\n          break;\n     }\n}\n$d = $x - 1;\n$e = 0;\nfor($x = $a; $x >= 1; $x--)\n{\n     if($x == $b)\n     {\n          break;\n     }\n     else\n     {\n          $e++;\n     }\n}\nif($d < $e)\n{\n     $f = $e - $d;\n     $b += $f;\n     for($x = 1; $x <= $f; $x++)\n     {\n          array_unshift($c, 2);\n     }\n}\nelseif($d > $e)\n{\n     $f = $d - $e;\n     for($x = 1; $x <= $f; $x++)\n     {\n          array_push($c, 2);\n     }\n}\n$g = 0;\n$h = $b - 2;\n$i = $b;\nfor($x = $b - 1; $x >= 0; $x--)\n{\n     if($x == ($b - 1))\n     {\n          if($c[$x] == 1)\n          {\n               $g++;\n          }\n     }\n     else\n     {\n          if(($c[$h] == 1) && ($c[$i] == 1))\n          {\n               $g += 2;\n          }\n          elseif(($c[$h] == 1) && ($c[$i] == 2))\n          {\n               $g++;\n          }\n          elseif(($c[$h] == 2) && ($c[$i] == 1))\n          {\n               $g++;\n          }\n          $h--;\n          $i++;\n     }\n}\nprint $g;\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "51d98f23b2255d3c9ca76ef597ab21cf", "src_uid": "4840d571d4ce6e1096bb678b6c100ae5", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n      $t = array();\n      list($n, $id) = explode(' ', trim(fgets(STDIN)));\n      $t = explode(' ', trim(fgets(STDIN)));\n      $id --;\n      $id2 = $id;\n      $ans = 0;\n      while($id >= 0 && $id2 < $n)\n      {\n          if($t[$id] == $t[$id2] && $t[$id] != '0')\n          {\n            $ans ++;\n            if($id != $id2)\n                $ans ++;\n          }\n          $id --;\n          $id2 ++;\n      }\n      while($id >= 0) \n      {\n          $ans += $t[$id] == '1';\n          $id --;\n      }\n      while($id2 < $n) \n      {\n          $ans += $t[$id2] == '1';\n          $id2 ++;\n      }\n      echo $ans;\n?>\n", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "0663649e4d56db84f098e6d599bfd9bb", "src_uid": "4840d571d4ce6e1096bb678b6c100ae5", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a == 2)\n{\n     print \"2\";\n}\nelse\n{\n     print \"1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "3f4c13c68faff0405b02ecca7170f1d6", "src_uid": "c30b372a9cc0df4948dca48ef4c5d80d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    echo (trim(fgets(STDIN)) == \"2\" ? 2 : 1);\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "ca9124ca44595f462ddb8bc57d8ca749", "src_uid": "c30b372a9cc0df4948dca48ef4c5d80d", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction decompose($number){\n  $sum = 0;\n  // while($number > 0){\n  //   $sum += $number % 10;\n  //   $number /= 10;\n  // }\n  $number = strval($number);\n  for($x = 0; $x < strlen($number); $x++)\n  {\n       $sum += $number[$x];\n  }\n  return $sum;\n}\n\nfscanf(STDIN, \"%d\\n\", $k);\n$i = 2;\n$prefect = 19;\nwhile($k > 0){\n  if(decompose($prefect) == 10){\n    $k--;\n  }\n  if($k == 0) break;\n  $prefect += 9;\n}\necho $prefect;", "lang_cluster": "PHP", "tags": ["brute force", "dp", "binary search", "implementation", "number theory"], "code_uid": "13e72a42d65019a85e7f5f81576c09b0", "src_uid": "0a98a6a15e553ce11cb468d3330fc86a", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 19;\n$c = 1;\n$e = array(1 => 19);\nwhile(TRUE)\n{\n     $b += 9;\n     $d = 0;\n     $b = strval($b);\n     for($x = 0; $x < strlen($b); $x++)\n     {\n          $d += $b[$x];\n     }\n     if($d == 10)\n     {\n          $c++;\n          $e[$c] = $b;\n     }\n     if($c == 10000)\n     {\n          break;\n     }\n}\nprint $e[$a];\n?>", "lang_cluster": "PHP", "tags": ["brute force", "dp", "binary search", "implementation", "number theory"], "code_uid": "186375e0bea873d1dfd0a19ff3bdeed3", "src_uid": "0a98a6a15e553ce11cb468d3330fc86a", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\nerror_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\n###### /IO ######\n\nfunction getAnswer($is_test = false, $f = false) {\n\tif ($is_test)\n\t\t$stream = $f;\n\telse\n\t\t$stream = STDIN;\n\t/* begin body */\n\t$aPos = str_split('qzawsxedcrfvtgpbyhnujmiklo');\n\tsort($aPos);\n\t$aPos = implode('', $aPos);\n\t$totalLen = strlen($aPos);\n\n\t$inputStr = readString($stream);\n\t$return = 0;\n\twhile (!empty($inputStr)) {\n\t\t$char = $inputStr[0];\n\t\t$pos = strpos($aPos, $char);\n\t\t$left = $totalLen - $pos;\n\t\tif ($pos < $left) {\n\t\t\t$return+=$pos;\n\t\t} else {\n\t\t\t$return+=$left;\n\t\t}\n\t\t$aPos = substr($aPos, $pos) . substr($aPos, 0, $pos);\n\n\t\t$inputStr = substr($inputStr, 1);\n\t}\n\techo $return;\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "9eb562a792c7d0b94e332d432a7b4470", "src_uid": "ecc890b3bdb9456441a2a265c60722dd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(\"a\" => 0, \"b\" => 1, \"c\" => 2, \"d\" => 3, \"e\" => 4, \"f\" => 5, \"g\" => 6, \"h\" => 7, \"i\" => 8, \"j\" => 9, \"k\" => 10, \"l\" => 11, \"m\" => 12, \"n\" => 13, \"o\" => 14, \"p\" => 15, \"q\" => 16, \"r\" => 17, \"s\" => 18, \"t\" => 19, \"u\" => 20, \"v\" => 21, \"w\" => 22, \"x\" => 23, \"y\" => 24, \"z\" => 25);\n$c = 0;\n$d = 0;\nfor($x = 0; $x < strlen($a); $x++)\n{\n     $e = $b[$a[$x]];\n     $f = abs($e - $d);\n     $g = abs(26 - $f);\n     $c += min($f, $g);\n     $d = $e;\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "017cf5b56f7520c0f4dad17518459788", "src_uid": "ecc890b3bdb9456441a2a265c60722dd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line = trim(fgets(STDIN));\nfunction dis($a,$b){\n    if($a == $b) return 0;\n    if(ord($a)> ord($b)){\n        $tmp = $a;\n        $a = $b;\n        $b = $tmp;\n    }\n    $i = abs(intval(ord($a) - ord($b)));\n    $j = abs(intval(ord($a) - ord('a'))) + abs(intval(ord('z')) - ord($b)) + 1;\n//    echo \"a: $a  b: $b\" . PHP_EOL;\n//    echo \"i: $i  j: $j \" . PHP_EOL;\n    return min($i,$j);\n}\n$current = 'a';\n$sum = 0;\nforeach(str_split($line) as $c){\n    $sum += dis($c,$current);\n    $current = $c;\n}\necho $sum . PHP_EOL;", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "03e85cad55431a5b55c26a65f87dcd3e", "src_uid": "ecc890b3bdb9456441a2a265c60722dd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$alphabet = [ 1 => 'a', 2 => 'b', 3 => 'c', 4 => 'd', 5 => 'e',\n    6 => 'f', 7 => 'g', 8 => 'h', 9 => 'i', 10 => 'j',\n    11 => 'k', 12 => 'l', 13 => 'm', 14 => 'n', 15 => 'o',\n    16 => 'p', 17 => 'q', 18 => 'r', 19 => 's', 20 => 't',\n    21 => 'u', 22 => 'v', 23 => 'w', 24 => 'x', 25 => 'y',\n    26 => 'z'];\n$stdin = fopen('php://stdin', 'r');\n\n$string = trim(fgets($stdin));\n$pos = 1;\n$count = 0;\nfor ($i = 0; $i < strlen($string); $i++) {\n    $newPos = array_search($string[$i], $alphabet);\n    if ($newPos > $pos) {\n        if ($newPos - $pos > 13) {\n\n            $count+= $pos + (26 - $newPos);\n        }\n        if ($newPos - $pos < 13) {\n\n            $count+= $newPos - $pos;\n        }\n        if ($newPos - $pos == 13) {\n            $count+=13;\n        }\n        $pos = $newPos;\n    }\n    if ($newPos < $pos) {\n        if ($pos - $newPos < 13) {\n            $count += $pos - $newPos;\n        }\n        if ($pos - $newPos > 13) {\n            $count+= $newPos + (26 - $pos);\n        }\n        if ($pos - $newPos == 13) {\n            $count+=13;\n        }\n        $pos = $newPos;\n    }\n}\necho $count;\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "1149c1681421ede6c914c0ae651dabcd", "src_uid": "ecc890b3bdb9456441a2a265c60722dd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str=trim(fgets(STDIN));\n$alpha='abcdefghijklmnopqrstuvwxyz';\n$split=str_split($alpha,1);\n//$revAlpha=strrev($alpha);\n\n$concate='a'.$str;\n//echo \"$concate\";\n$count=0;\nfor($i=0;$i<strlen($concate)-1;$i++)\n{\n\t$keyDistance=abs(ord($concate[$i])-ord($concate[$i+1]));\n\t//echo \"$keyDistance\\n\";\n\tif($keyDistance>13)\n   {\n   \t     $k1[$i]=array_keys($split,$concate[$i]);\n   \t    // print_r($k1);\n   \t     //$key1=$k1[$i];\n   \t    //\n   \t     $k2[$i]=array_keys($split,$concate[$i+1]);\n   \t    //print_r($k2);\n   \t     //$key2=$k2[$i];\n   \t     if($k1[$i]>$k2[$i]){\n\n   \t       $temp[$i]=$k1[$i];\n   \t       $k1[$i]=$k2[$i];\n   \t       $k2[$i]=$temp[$i];\n\n   \t   }\n\n   \t    \n   \t     \n   $count+=($k1[$i][0]+26)-$k2[$i][0];\n   //echo \"plus=$count\\n\";\n   }\n   else\n   {\n   \t   \t  $k1[$i]=array_keys($split,$concate[$i]);\n   \t     //$key1=$k1[$i];\n   \t    //\n   \t     $k2[$i]=array_keys($split,$concate[$i+1]);\n   \t     //$key2=$k2[$i];\n\n   \t     \n         $count+=abs($k1[$i][0]-$k2[$i][0]);\n   //echo \"minus=$count\\n\";\n\n   }\n   //print_r($k1);\n  // print_r($k2);\n\n}\necho \"$count\";\n\n//print_r($keyDistance);", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "db6a16d905cce9caec3bce3e6cc137bc", "src_uid": "ecc890b3bdb9456441a2a265c60722dd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\ndefine(\"CHARACTER_LIST\", ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']);\n\n$word = trim(fgets(STDIN));\n\n$wordLetters = str_split($word);\n\n$prevPosition = 0;\n$steps = 0;\nforeach ($wordLetters as $letter) {\n  $letterNumber = array_search($letter, CHARACTER_LIST);\n\n  $stepsCount = abs($letterNumber - $prevPosition);\n\n  if ($stepsCount >= 13) {\n    $actualStepsCount = count(CHARACTER_LIST) - $stepsCount;\n    $steps += $actualStepsCount;\n\n    $prevPosition = $letterNumber;\n  } else {\n    $actualStepsCount = $stepsCount;\n    $steps += $actualStepsCount;\n\n    $prevPosition = $letterNumber;\n  }\n}\n\necho $steps;\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "142bad49d2332628bacd75ac052ac1ba", "src_uid": "ecc890b3bdb9456441a2a265c60722dd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//=====================================\n// link: https://codeforces.com/contest/731/problem/A\n//=====================================\n\n// get inputs\n$string = trim(fgets(STDIN));\n\n// solution\n$alpha   = array_flip(range('a', 'z'));\n$travel  = 0;\n$pointer = 0;\n\nfor ($i = 0; $i < strlen($string); $i++) {\n    $clockwise = abs($pointer - $alpha[$string[$i]]);\n\n    $counterclockwise = 26 - $clockwise;\n\n    $travel += min($clockwise, $counterclockwise);\n\n    $pointer = $alpha[$string[$i]];\n}\n\necho \"$travel\\n\";\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "f94057b84db9712d0348f8c9040133a1", "src_uid": "ecc890b3bdb9456441a2a265c60722dd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\t$string = readline(\"\");\n\t$result = 0;\n\n\t$stringArr = str_split($string);\n\t$len = count($stringArr);\n\t$pointer = ord(\"a\");\n\tforeach($stringArr as $ch) {\n\t\t$ch = ord($ch);\n\t\t$diff = abs($ch - $pointer);\n\t\tif($diff < 13) {\n\t\t\t$result += $diff;\n\t\t} else {\n\t\t\t$result += (26 - $diff);\n\t\t}\n\t\t$pointer = $ch;\n\t}\n\techo $result;\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "2a53f4b35e936ed4e6270269da51563d", "src_uid": "ecc890b3bdb9456441a2a265c60722dd", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$di=trim(fgets(STDIN));\n$ex= explode(\" \", $di);\n\nforeach ($ex as $key => $value) {\n    \n  if ($key == 1) $value3=$value;\n  if ($key == 0) $value2=$value;\n  if ($key == 2) $value5=$value;\n  if ($key == 3) $value6=$value;\n \n \n  \n  if ($value2 <= $value5 and $value2 <= $value6) {\n       $final=$value2 * 256;\n     \n  }elseif ($value5 < $value2 and $value5 < $value6) {\n      \n       $final=$value5 * 256;\n     \n  }elseif ($value6 < $value2 and $value6 < $value5){\n      \n       $final=$value6 * 256;\n      \n  }elseif ($value5 == $value6) {\n      \n      $final= $value5 * 256;\n      \n  }\n\n  $actvalue=$final / 256;\n  $ac2=$value2 - $actvalue;\n  \n  \n  if ($actvalue == $value2)      {\n       $ff =$final ;\n       \n  }elseif ($value3 < $ac2) {\n      $mm=$value3 * 32;\n      $ff=$mm + $final;\n        \n      \n        \n    }elseif ($ac2 < $value3) {\n          $ff = $ac2 * 32 + $final;\n         \n    }elseif ($ac2 == $value3) {\n        \n        $ff= $value3 * 32 + $final;\n    }\n    \n    \n\n}\n  echo $ff;\n  \n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "brute force"], "code_uid": "7ed2afeadf15a6fab51cac8e5a735c75", "src_uid": "082b31cc156a7ba1e0a982f07ecc207e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = rtrim(fgets(STDIN));\n$raw = explode(' ', $input);\n\n$k2 = (int)$raw[0];\n$k3 = (int)$raw[1];\n$k5 = (int)$raw[2];\n$k6 = (int)$raw[3];\n\n$answer = 0;\n$s256 = min($k2, $k5, $k6);\n$answer += $s256 * 256;\n$k2 -= $s256;\n$answer += min($k2, $k3) * 32;\n\necho $answer . PHP_EOL;", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "brute force"], "code_uid": "cfa0ea214b7d3ded745553972f5cf19a", "src_uid": "082b31cc156a7ba1e0a982f07ecc207e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$string = trim(fgets(STDIN,100));\n$len = strlen($string);\n$start = 0;\n$index=0;\n$arr = array(4);\nfor($i=0;$i<$len;$i++){\n  if(substr($string, $i, 1) == \" \")\n  {\n    $arr[$index] = substr($string, $start, ($i-$start));\n    $start = $i+1;\n    $index++;\n  }\n  else if($i == ($len-1)){\n    $arr[$index] = substr($string, $start, (($i+1)-$start));\n    $start = $i+1;\n  }\n}\n$index = $arr[0];\nif($arr[2]<$index){\n  $index = $arr[2];\n}\nif($arr[3]<$index){\n  $index = $arr[3];\n}\n$sum = $index*256;\n$arr[0] -= $index;\n$index = $arr[0];\nif($arr[1]<$index){\n  $index = $arr[1];\n\n}\n$sum += ($index*32);\n\n\necho $sum;\n\n?>\n", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "brute force"], "code_uid": "56fbb73cf2cb23edfd907111419f3d28", "src_uid": "082b31cc156a7ba1e0a982f07ecc207e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$di=trim(fgets(STDIN));\n$ex= explode(\" \", $di);\n\nforeach ($ex as $key => $value) {\n    \n  if ($key == 1) $value3=$value;\n  if ($key == 0) $value2=$value;\n  if ($key == 2) $value5=$value;\n  if ($key == 3) $value6=$value;\n \n \n  \n  if ($value2 <= $value5 and $value2 <= $value6) {\n       $final=$value2 * 256;\n     \n  }elseif ($value5 < $value2 and $value5 < $value6) {\n      \n       $final=$value5 * 256;\n     \n  }elseif ($value6 < $value2 and $value6 < $value5){\n      \n       $final=$value6 * 256;\n      \n  }elseif ($value5 == $value6) {\n      \n      $final= $value5 * 256;\n      \n  }\n\n  $actvalue=$final / 256;\n  $ac2=$value2 - $actvalue;\n  \n  \n  if ($actvalue == $value2)      {\n       $ff =$final ;\n       \n  }elseif ($value3 < $ac2) {\n      $mm=$value3 * 32;\n      $ff=$mm + $final;\n        \n      \n        \n    }elseif ($ac2 < $value3) {\n          $ff = $ac2 * 32 + $final;\n         \n    }elseif ($ac2 == $value3) {\n        \n        $ff= $value3 * 32 + $final;\n    }\n    \n    \n\n}\n  echo $ff;\n  \n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "brute force"], "code_uid": "673a02db1f9d07ccf23bcaa85b504614", "src_uid": "082b31cc156a7ba1e0a982f07ecc207e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\n#error_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\nfunction readNumArray($f) {\n\treturn readStringExplodeNum($f, ' ', true);\n}\n\nfunction readArray($f) {\n\treturn readStringExplodeNum($f, ' ');\n}\n\nfunction readTrimString($f) {\n\treturn trim(readString($f));\n}\n\n###### /IO ######\n# for($i=0;$i<$n;$i++)\n\nfunction getAnswer($is_test = false, $f = false) {\n\tif ($is_test === false) {\n\t\t$f = STDIN;\n\t}\n\t/* begin body */\n\tlist($k2, $k3, $k5, $k6) = readStringExplodeNum($f, ' ', true);\n\t$n256 = min($k2, $k5, $k6);\n\t$k2-=$n256;\n\t$k5-=$n256;\n\t$k6-=$n256;\n\n\t$n32 = min($k2, $k3);\n\techo ($n256 * 256 + $n32 * 32);\n\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "brute force"], "code_uid": "f16050ee738ef6067ee974d57ca16bcf", "src_uid": "082b31cc156a7ba1e0a982f07ecc207e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = array();\n$e = floor($a / $b);\n$f = $a % $b;\nif($e == 1)\n{\n     if($f >= $c)\n     {\n          $d[0] = 4;\n     }\n     else\n     {\n          $g = floor($a / $c);\n          if($g >= 2)\n          {\n               $d[0] = 5;\n          }\n          else\n          {\n               $d[0] = 6;\n          }\n     }\n}\nelseif($e == 2)\n{\n     if($f >= $c)\n     {\n          $d[0] = 2;\n     }\n     else\n     {\n          $g = floor($a / $c);\n          if($g >= 2)\n          {\n               $d[0] = 3;\n          }\n          else\n          {\n               $d[0] = 4;\n          }\n     }\n}\nelseif($e == 3)\n{\n     if(max($f, ($a - $b) / 2) >= $c)\n     {\n          $d[0] = 2;\n     }\n     elseif(max($f, $a - $b) >= $c)\n     {\n          $h = $a - $b;\n          $i = $h + $f;\n          $j = floor($i / $c);\n          if($j == 1)\n          {\n               $d[0] = 3;\n          }\n          else\n          {\n               $d[0] = 2;\n          }\n     }\n     else\n     {\n          $g = floor($a / $c);\n          if($g >= 2)\n          {\n               $d[0] = 3;\n          }\n          else\n          {\n               $d[0] = 4;\n          }\n     }\n}\nelseif($e >= 4)\n{\n     if(($a - ($b * 4)) / 2 >= $c)\n     {\n          $d[0] = 1;\n     }\n     else\n     {\n          $g = floor($a / $c);\n          if($g >= 2)\n          {\n               $d[0] = 2;\n          }\n          else\n          {\n               $d[0] = 3;\n          }\n     }\n}\n$h = floor($a / $c);\n$i = $a % $c;\nif($h == 1)\n{\n     if($i < $b)\n     {\n          $j = floor($a / $b);\n          if($j == 1)\n          {\n               $d[1] = 6;\n          }\n          elseif(($j == 2) || ($j == 3))\n          {\n               $d[1] = 4;\n          }\n          elseif($j >= 4)\n          {\n               $d[1] = 3;\n          }\n     }\n     elseif($i >= $b * 2)\n     {\n          $d[1] = 2;\n     }\n     elseif($i >= $b)\n     {\n          $j = floor($a / $b);\n          if($j == 1)\n          {\n               $d[1] = 4;\n          }\n          elseif($j >= 2)\n          {\n               $d[1] = 3;\n          }\n     }\n}\nelseif($h >= 2)\n{\n     if($i < $b)\n     {\n          $j = floor($a / $b);\n          if($j == 1)\n          {\n               $d[1] = 6;\n          }\n          elseif(($j == 2) || ($j == 3))\n          {\n               $d[1] = 4;\n          }\n          elseif($j >= 4)\n          {\n               $d[1] = 3;\n          }\n     }\n     elseif($i >= $b * 2)\n     {\n          $d[1] = 2;\n     }\n     elseif($i >= $b)\n     {\n          $j = floor($a / $b);\n          if($j == 1)\n          {\n               $d[1] = 4;\n          }\n          elseif($j >= 2)\n          {\n               $d[1] = 3;\n          }\n     }\n}\nprint min($d);\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "c09e86a0867784f94a198397c2ed5ecc", "src_uid": "1a50fe39e18f86adac790093e195979a", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$buffer = array();\n$stdin = fopen('php://stdin', 'r');\nwhile (!feof($stdin)) {\n    $buffer[] = fgets($stdin);\n}\nfclose($stdin);\n\n$c = explode(' ', $buffer[0], 2);\n$countBallons = intval($c[0]);\n$countFriends = intval($c[1]);\n$colors = str_split($buffer[1], 1);\n\n$colorsCount = array();\n$max = 0;\nforeach ($colors as $color){\n    $colorsCount[$color]++;\n    if ($colorsCount[$color] > $max){\n        $max = $colorsCount[$color];\n    }\n}\n\n$stdout = fopen('php://stdout', 'w');\nfwrite($stdout, ($max <= $countFriends ? \"YES\" : \"NO\"));\nfclose($stdout);", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "a929ac1997a4891dbd7a47bb7176469b", "src_uid": "ceb3807aaffef60bcdbcc9a17a1391be", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$fp = fopen('php://stdin', 'r');\n$line1 = trim(fgets($fp));\n$line2 = trim(fgets($fp));\nfclose($fp);\n$twoNumber = explode(' ', $line1);\n$fNum = intval($twoNumber[0]);\n$sNum = intval($twoNumber[1]);\n\n$arrCount = array_count_values(str_split($line2));\nforeach ($arrCount as $value) {\n    if ($value > $sNum) {\n        echo \"NO\", PHP_EOL;die;\n    }\n}\necho \"YES\", PHP_EOL;\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "2c93d8d070934dd2d5e8ee73c16e15c8", "src_uid": "ceb3807aaffef60bcdbcc9a17a1391be", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$p = fopen('php://stdin', 'r');\n$input = explode(' ', fgets($p));\n$baloonCount = intval($input[0]);\n$friendCount = intval($input[1]);\n$str = trim(fgets($p));\nfclose($p);\n$groups = [];\n$baloons = str_split($str);\nforeach ($baloons as $color) {\n    if (isset($groups[$color])) {\n        $groups[$color]++;\n    } else {\n        $groups[$color] = 1;\n    }\n}\nforeach ($groups as $count) {\n    if ($count > $friendCount) {\n        echo 'NO', PHP_EOL; die;\n    };\n}\necho 'YES', PHP_EOL;\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "c73cb456e5d7e603a8101d4be16c4fb1", "src_uid": "ceb3807aaffef60bcdbcc9a17a1391be", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = fopen(\"php://stdin\",\"r\");\n$str = fgets($input);\n\n$max = 0;\nfor ($i = 0;$i<strlen($str);++$i) {\n\tif (ord($str[$i])>$max) $max = ord($str[$i]);\n}\n\n$ans = '';\nfor ($i = 0;$i<strlen($str);++$i) {\n\tif (ord($str[$i])==$max) $ans.=$str[$i];\n}\n\necho $ans;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "binary search", "bitmasks", "greedy", "strings", "implementation"], "code_uid": "4182a0d25d7ba1138326f9af9dfd8912", "src_uid": "9a40e9b122962a1f83b74ddee6246a40", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// Retrieve input and show output\n$stream = fopen(\"php://stdin\", \"r\");\n$input = stream_get_contents($stream);\n$inputs = preg_split(\"/[\\s]+/\", $input);\necho func($inputs);\n\n// Codeforces Contest 127 Division 2 Problem A\nfunction func($in) {\n$len = strlen($in[0]);\n$asc = 97;\t\t// ord(\"A\")\n$count = 0;\nfor ($x = 0; $x < $len; $x++) {\n\tif (ord(substr($in[0], $x, 1)) > $asc) {\n\t\t$asc = ord(substr($in[0], $x, 1));\n\t\t$count = 1;\n\t} else if (ord(substr($in[0], $x, 1)) == $asc) {\n\t\t$count++;\n\t}\n}\nreturn str_repeat(chr($asc), $count);\n}\n\n// End of submission file\n// Submission by chaotic_iak\n?>", "lang_cluster": "PHP", "tags": ["brute force", "binary search", "bitmasks", "greedy", "strings", "implementation"], "code_uid": "115d1ccab40a082fd7043e66f6ebafbd", "src_uid": "9a40e9b122962a1f83b74ddee6246a40", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = \"#\" . trim(fgets(STDIN)) . \"*\";\n$b = str_split($a);\n$c = 0;\n$d = array();\n$f = array(\"a\", \"b\", \"c\", \"d\", \"e\", \"f\", \"g\", \"h\", \"i\", \"j\", \"k\", \"l\", \"m\", \"n\", \"o\", \"p\", \"q\", \"r\", \"s\", \"t\", \"u\", \"v\", \"w\", \"x\", \"y\", \"z\");\n$g = array_reverse($f);\nfor($x = 1; $x < count($b) - 1; $x++)\n{\n    for($y = 1; $y <= floor(count($b) / 2); $y++)\n    {\n        if($b[$x - $y] == $b[$x + $y])\n        {\n            $c++;\n        }\n        else\n        {\n            array_push($d, $c);\n            $c = 0;\n            break;\n        }\n    }\n}\narsort($d);\n$h = array_keys($d);\n$e = $d;\nrsort($e);\n$j = 0;\n$k = \"\";\n$l = 0;\nif($e[0] == 0)\n{\n    for($x = 0; $x < count($g); $x++)\n    {\n        for($y = 0; $y < count($b); $y++)\n        {\n            if($g[$x] == $b[$y])\n            {\n                for($z = 0; $z < count($b); $z++)\n                {\n                    if($b[$z] == $g[$x])\n                    {\n                        $k .= $g[$x];\n                    }\n                }\n                $l = 1;\n                print $k;\n                break;\n            }\n        }\n        if($l == 1)\n        {\n            break;\n        }\n    }\n}\nelse\n{\n    $i = array_slice($b, $h[0] - $d[$h[0]] + 1, ($d[$h[0]] * 2) + 1);\n    for($x = 0; $x < count($g); $x++)\n    {\n        for($y = 0; $y < count($b); $y++)\n        {\n            if($g[$x] == $b[$y])\n            {\n                for($z = 0; $z < count($b); $z++)\n                {\n                    if($b[$z] == $g[$x])\n                    {\n                        $k .= $g[$x];\n                    }\n                }\n                $l = 1;\n                print $k;\n                break;\n            }\n        }\n        if($l == 1)\n        {\n            break;\n        }\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "binary search", "bitmasks", "greedy", "strings", "implementation"], "code_uid": "1d4c7d30eb74f0b466eb344c4348f194", "src_uid": "9a40e9b122962a1f83b74ddee6246a40", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif(strlen($a) < 3)\n{\n     print \"-1\";\n}\nelse\n{\n     $b = 0;\n     $c = 0;\n     for($x = 0; $x < strlen($a) - 2; $x++)\n     {\n          $d = 0;\n          $e = strlen($a) - 1;\n          for($y = $x + 1; $y < strlen($a) - 1; $y++)\n          {\n               $d++;\n               $e--;\n               $f = substr($a, 0, $x + 1);\n               $g = substr($a, $x + 1, $d);\n               $h = substr($a, $x + 1 + $d, $e);\n               if(((strlen($f) > 1) && ($f[0] == 0)) || ((strlen($g) > 1) && ($g[0] == 0)) || ((strlen($h) > 1) && ($h[0] == 0)) || ($f > 1000000) || ($g > 1000000) || ($h > 1000000))\n               {\n                    continue;\n               }\n               else\n               {\n                    $c = 1;\n                    $b = max($b, $f + $g + $h);\n               }\n          }\n     }\n     if($c == 0)\n     {\n          print \"-1\";\n     }\n     else\n     {\n          printf(\"%.0f\", $b);\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "de9085218cdf96d6686208fc42eac734", "src_uid": "bf4e72636bd1998ad3d034ad72e63097", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\n\n$l = strlen($s);\n\nif($l > 21) {print '-1'; exit(0);}\n\n$max = -1;\nfor($i=1;$i<$l-1;$i++){\n for($j=$i+1;$j<$l;$j++){\n  $a = substr($s,0,$i);\n  $b = substr($s,$i,($j-$i));\n  $c = substr($s,$j);\n  if($a > 1000000 || $b > 1000000 || $c > 1000000) continue;\n  if(($a[0] == '0' && strlen($a) > 1) ||\n     ($b[0] == '0' && strlen($b) > 1) ||\n     ($c[0] == '0' && strlen($c) > 1)) continue;\n  if($max < $a + $b + $c) $max = $a + $b + $c;\n }\n}\n\nprint $max;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "7b312b10996a683ba51b598467e002a6", "src_uid": "bf4e72636bd1998ad3d034ad72e63097", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nerror_reporting(0);\n\nsolve();\n\nfunction is_length_invalid($str){\n\t$n = strlen($str);\n\tif ($n >= 8) return true;\n\telse if ($n === 7 && $str !== \"1000000\") return true;\n\t\n\treturn false;\n}\n\nfunction is_leadingzero($str){\n\t$n = strlen($str);\n\t$str_nums = str_split($str);\n\t\n\tif ($str_nums[0] === \"0\") {\n\t\tif ($n !== 1) return true;\n\t}\n\t\n\treturn false;\n}\n\nfunction solve(){\n\t$Scanner = new Scanner(\"php://stdin\");\n\t//$Scanner = new Scanner(\"input.txt\");\n\t\n\t$S = $Scanner->Scan();\n\t$len = strlen($S);\n\t$max = -1;\n\t\n\tfor ($i = 1; $i <= $len - 2; $i++) {\n\t\t$first = substr($S, 0, $i);\n\t\tif (is_leadingzero($first) || is_length_invalid($first)) continue;\n\n\t\tfor ($j = 1; $j <= $len - $i - 1; $j++) {\n\t\t\t$second = substr($S, $i , $j);\n\t\t\tif (is_leadingzero($second) || is_length_invalid($second)) continue;\n\t\t\t\t\t\n\t\t\tfor ($k = 1; $k <= $len - $i - $j; $k++) {\n\t\t\t\t\t$third = substr($S, $i + $j);\n\t\t\t\t\tif (is_leadingzero($third) || is_length_invalid($third)) continue;\n\t\t\t\t\t$max = max($max, $first + $second + $third);\n\t\t\t}\n\t\t}\n\t}\n\tprint($max);\n\t\n\t$Scanner->Close();\n}\n\nclass Scanner{\n\tprivate $Stream;\n\tprivate $Scanners = array();\n\tprivate $Id = 0;\n\t\n\tpublic function __construct($opend){\n\t\t$this->Stream = fopen($opend, 'r');\n\t\t$contents = stream_get_contents($this->Stream);\n\t\t$contents = str_replace(array(\"\\r\\n\", \"\\r\", \"\\n\"), \" \", $contents);\n\t\t$this->Scanners = explode(\" \", $contents);\n\t}\n\t\n\tpublic function Scan(){\n\t\treturn $this->Scanners[$this->Id++];\n\t}\n\n\tpublic function Close(){\n\t\tfclose($this->Stream);\n\t}\n}\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "6e35534c43e126a9e7ddba6a1ef0b50f", "src_uid": "bf4e72636bd1998ad3d034ad72e63097", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\nerror_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\n###### /IO ######\n\nfunction getAnswer($is_test = false, $f = false) {\n\tif ($is_test === false) {\n\t\t$f = STDIN;\n\t}\n\t/* begin body */\n\t$n = readNum($f);\n\t$times = readStringExplodeNum($f, ' ', true);\n\t$f = 0;\n\t$viewTime = 0;\n\tfor ($i = 1; $i <= 90; $i++) {\n\t\tif (in_array($i, $times)) {\n\t\t\t$f = 0;\n\t\t} else {\n\t\t\t$f ++;\n\t\t}\n\n\t\t$viewTime++;\n\t\tif ($f >= 15) {\n\t\t\tbreak;\n\t\t}\n\t}\n\techo $viewTime;\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "3f3689b466cbf1c3ca1cadcb770d711b", "src_uid": "5031b15e220f0ff6cc1dd3731ecdbf27", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction test($n,$arr){\n    $start = 0;\n    for($i = 0;$i< $n ;$i++){\n        if(($arr[$i] - $start) > 15) return ($start+15) >= 90 ? 90 : $start+15 ;\n        $start = $arr[$i];\n    }\n    return ($arr[$n-1] + 15) >= 90 ? 90 : $arr[$n-1]+15;\n}\n    //  Bear and Game\n    $in = 'php://stdin';\n    $input = fopen($in, \"r\");\n    $n = fgets($input);\n    $t = [];\n    $t = array_merge($t, explode(\" \", trim(fgets($input))));\n    echo (test($n,$t));\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "9f77a56736665c5af59a7cd80d1c83d6", "src_uid": "5031b15e220f0ff6cc1dd3731ecdbf27", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\n$d = 0;\nfor($x = 1; $x <= 90; $x++)\n{\n     for($y = 0; $y < $a; $y++)\n     {\n          if($x == $b[$y])\n          {\n               $d = 1;\n               break;\n          }\n     }\n     if($d == 1)\n     {\n          $c = 0;\n          $d = 0;\n     }\n     else\n     {\n          $c++;\n          if($c == 15)\n          {\n               break;\n          }\n     }\n}\nif($x == 91)\n{\n     $x--;\n}\nprint $x;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "884315522973c7b84f73b94b8ef24e0c", "src_uid": "5031b15e220f0ff6cc1dd3731ecdbf27", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$in = 'php://stdin';\n$input = fopen($in, \"r\");\n$n = fgets($input);\n$t = [0];\n$t = array_merge($t, explode(\" \", trim(fgets($input))));\n$tt = [];\n/*\nforeach ($t as $i) {\n    array_push($tt, intval($i));\n}\narray_push($tt, 90);\n*/\narray_push($t, 90);\n$isTVOff = false;\nfor ($i = 0; $i < count($t) - 1; $i++) {\n    if (intval($t[$i + 1]) - intval($t[$i]) > 15) {\n        echo($t[$i] + 15);\n        $isTVOff = true;\n        break;\n    }\n}\nif (!$isTVOff) {\n    echo(90);\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ec874e37ef66e30db22cc741e82ba1b0", "src_uid": "5031b15e220f0ff6cc1dd3731ecdbf27", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$in = 'php://stdin';\n$input = fopen($in, \"r\");\n$n = fgets($input);\n$t = [0];\n$t = array_merge($t, explode(\" \", trim(fgets($input))));\n$tt = [];\nforeach ($t as $i) {\n    array_push($tt, intval($i));\n}\narray_push($tt, 90);\n$isTVOff = false;\nfor ($i = 0; $i < count($tt) - 1; $i++) {\n    if ($tt[$i + 1] - $tt[$i] > 15) {\n        echo($tt[$i] + 15);\n        $isTVOff = true;\n        break;\n    }\n}\nif (!$isTVOff) {\n    echo(90);\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "8dc370cfde0fea9b61219313645839b7", "src_uid": "5031b15e220f0ff6cc1dd3731ecdbf27", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\t$totalInterestingMinutes = readline(\"\");\n\t$minutes = readline(\"\");\n\n\t$minutes = explode(\" \", $minutes);\n\n\t$prevMin = 0;\n\t$result = 90;\n\t$count = count($minutes);\n\tforeach($minutes as $key => $min) {\n\t\t$min = (int)$min;\n\t\tif($min - $prevMin > 15) {\n\t\t\t$result = $prevMin + 15;\n\t\t\tbreak;\n\t\t}\n\t\tif($min == 90) {\n\t\t\t$result = 90;\n\t\t\tbreak;\n\t\t}\n\t\tif($key == $count - 1 && $min + 15 < 90) {\n\t\t\t$result = $min + 15;\n\t\t\tbreak;\n\t\t}\n\t\t$prevMin = $min;\n\t}\n\techo $result;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "209ec7e6c4d167570f13fc23cfea9ec5", "src_uid": "5031b15e220f0ff6cc1dd3731ecdbf27", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = 'php://stdin';\n$input = fopen($in, \"r\");\n$n = fgets($input);\n$t = [];\n$t = array_merge($t, explode(\" \", trim(fgets($input))));\n\nfunction watchTime($n, $t) {\n    $watchTime = 0;\n    for($i = 0; $i < $n; $i++){\n        if($t[$i]-$watchTime > 15) break;\n\n        $watchTime = $t[$i];\n    }\n    echo $watchTime+15 > 90 ? 90 : $watchTime+15;\n}\n\nwatchTime($n,$t);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4e6fbc2f2ceebea69bbc5a9d6429eb83", "src_uid": "5031b15e220f0ff6cc1dd3731ecdbf27", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = 'php://stdin';\n$input = fopen($in, \"r\");\n$n = fgets($input);\n$t = [];\n$t = array_merge($t, explode(\" \", trim(fgets($input))));\n\nfunction watchTime($n, $t) {\n    $watchTime = 0;\n    $funLimit = 15;\n    for($i = 0; $i < $n; $i++){\n        $inTime = ceil(($t[$i]-$watchTime)/$funLimit);\n        if($inTime > 1){\n            break;\n        } else {\n            $watchTime = $t[$i];\n        }\n    }\n    echo $watchTime+15 > 90 ? 90 : $watchTime+15 ;\n}\n\nwatchTime($n,$t);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "94ffa442cc2f759089e6f3583254b6e7", "src_uid": "5031b15e220f0ff6cc1dd3731ecdbf27", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = str_split(fgets(STDIN));\n$count=count($input);\n$r=0;\nfor ($i=0; $i < $count ; $i++) { \n\tif ($input[$i] == 'Q') {\n\t\tfor ($j=$i+1; $j < $count; $j++) { \n\t\t\tif ($input[$j] == 'A') {\n\t\t\t\tfor ($t=$j+1; $t < $count; $t++) { \n\t\t\t\t\tif ($input[$t] == 'Q') {\n\t\t\t\t\t\t$r++;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n\necho $r;", "lang_cluster": "PHP", "tags": ["brute force", "dp"], "code_uid": "3af33210bdac88a76d5add049c3987c7", "src_uid": "8aef4947322438664bd8610632fe0947", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n// სალადინი -> სალაჰ ად-დინ იუსუფ იბნ აიუბი\n\n// ეგვიპტის სულთანი 1171 წლიდან\n// Kingdom of Heaven -ში ერთ-ერთი პერსონაჟი\n// ჯვაროსნულ ლაშქრობებში ფიგურირებდა\n\n\n//\"I am not those men. I AM Sallah Ad Din. Sallah Ad Din!\"\n\n\n$in = fgets(STDIN);\n\n$str = array();\n\n$salahAdDin = 0;\n\nfor($i=0;$i<strlen($in);$i++)\n    if($in[$i]=='Q')\n        array_push($str,'Q');\n    elseif($in[$i]=='A')\n        array_push($str,'A');\n\n$n = count($str);\n\nfor($i=0;$i<$n-2;$i++)\n    for($j=$i+1;$j<$n-1;$j++)\n        for($c = $j+1;$c<$n;$c++)\n            if($str[$i]=='Q' && $str[$j]=='A' && $str[$c]=='Q')\n                $salahAdDin++;\n\necho $salahAdDin;\n\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "dp"], "code_uid": "27684d14cbf3656bf11c9e0a66921738", "src_uid": "8aef4947322438664bd8610632fe0947", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 0;\nfor($x = 0; $x < strlen($a) - 2; $x++)\n{\n     for($y = $x + 1; $y < strlen($a) - 1; $y++)\n     {\n          for($z = $y + 1; $z < strlen($a); $z++)\n          {\n               if(($a[$x] == \"Q\") && ($a[$y] == \"A\") && ($a[$z] == \"Q\"))\n               {\n                    $b++;\n               }\n          }\n     }\n}\nprint $b;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "dp"], "code_uid": "01d74d74902e00761852707ebab698d4", "src_uid": "8aef4947322438664bd8610632fe0947", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = trim(fgets(STDIN));\n$e = 0;\nwhile(TRUE)\n{\n     if(($a < $b) || ($b == 1))\n     {\n          $a--;\n          $f = $a * $c;\n          $e += $f;\n          break;\n     }\n     else\n     {\n          $f = $a % $b;\n          if($f == 0)\n          {\n               $g = $a / $b;\n               if($g == 1)\n               {\n                    $a--;\n                    $h = $a * $c;\n                    if($h < $d)\n                    {\n                         $e += $h;\n                    }\n                    else\n                    {\n                         $e += $d;\n                    }\n                    $a = 1;\n               }\n               else\n               {\n                    $h = $g * $c;\n                    if(($h < $d) && (($h / $d) < $g / ($a - ($a / $b))))\n                    {\n                         $e += $h;\n                         $a -= $g;\n                    }\n                    else\n                    {\n                         $e += $d;\n                         $a /= $b;\n                    }\n               }\n          }\n          else\n          {\n               $g = $f * $c;\n               $e += $g;\n               $a -= $f;\n          }\n          if($a == 1)\n          {\n               break;\n          }\n     }\n}\nprintf(\"%.0f\", $e);\n?>", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "14534d9d00b9ef4c1bb83336467b4b2d", "src_uid": "f838fae7c98bf51cfa0b9bd158650b10", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = trim(fgets(STDIN));\n$e = 0;\nwhile(TRUE)\n{\n     if(($a < $b) || ($b == 1))\n     {\n          $a--;\n          $f = $a * $c;\n          $e += $f;\n          break;\n     }\n     else\n     {\n          $f = $a % $b;\n          if($f == 0)\n          {\n               $g = $a / $b;\n               if($g == 1)\n               {\n                    $a--;\n                    $h = $a * $c;\n                    if($h < $d)\n                    {\n                         $e += $h;\n                    }\n                    else\n                    {\n                         $e += $d;\n                    }\n                    $a = 1;\n               }\n               else\n               {\n                    $h = $g * $c;\n                    if(($h < $d) && (($h / $d) < ($g / ($a - ($a / $b)))))\n                    {\n                         $e += $h;\n                         $a -= $g;\n                    }\n                    else\n                    {\n                         $e += $d;\n                         $a /= $b;\n                    }\n               }\n          }\n          else\n          {\n               $g = $f * $c;\n               $e += $g;\n               $a -= $f;\n          }\n          if($a == 1)\n          {\n               break;\n          }\n     }\n}\nprintf(\"%.0f\", $e);\n?>", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "103b7bb2139b69730c1bf160cef498fa", "src_uid": "f838fae7c98bf51cfa0b9bd158650b10", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = trim(fgets(STDIN));\n$e = 0;\nwhile(TRUE)\n{\n     if(($a < $b) || ($b == 1))\n     {\n          $a--;\n          $f = $a * $c;\n          $e += $f;\n          break;\n     }\n     else\n     {\n          $f = $a % $b;\n          if($f == 0)\n          {\n               $g = $a / $b;\n               if($g == 1)\n               {\n                    $a--;\n                    $h = $a * $c;\n                    if($h < $d)\n                    {\n                         $e += $h;\n                    }\n                    else\n                    {\n                         $e += $d;\n                    }\n                    $a = 1;\n               }\n               else\n               {\n                    $h = $g * $c;\n                    if($d < ($a - ($a / $b)) * $c)\n                    {\n                         $e += $d;\n                         $a /= $b;\n                    }\n                    else\n                    {\n                         $e += $h;\n                         $a -= $g;\n                    }\n               }\n          }\n          else\n          {\n               $g = $f * $c;\n               $e += $g;\n               $a -= $f;\n          }\n          if($a == 1)\n          {\n               break;\n          }\n     }\n}\nprintf(\"%.0f\", $e);\n?>", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "2f5a2bc83d04d4f0eb6489db62b7039e", "src_uid": "f838fae7c98bf51cfa0b9bd158650b10", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($x, $y) = explode(' ', line());\n\n$x = intval($x);\n$y = intval($y);\n\nif ($x > 0 && $y > 0) {\n  $answer = array(0, $x + $y, $x + $y, 0);\n}\nelseif ($x > 0 && $y < 0) {\n  $answer = array(0, -$x + $y, $x - $y, 0);\n}\nelseif ($x < 0 && $y > 0) {\n  $answer = array($x - $y, 0, 0, -$x + $y);\n}\nelseif ($x < 0 && $y < 0) {\n  $answer = array($x + $y, 0, 0, $x + $y);\n}\n\nprint implode(' ', $answer);\n\nfunction line() {\n  return trim(fgets(STDIN));\n}\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "0f950158a3a6294c77d6be348fa05e01", "src_uid": "e2f15a9d9593eec2e19be3140a847712", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/** SECTION 0: NOTES **/\n/*\nProblem:\nCodeforces Contest 195 Div 2 Problem A\n\nAuthor          : chaotic_iak (http://chaoticiak.comlu.com/)\nLanguage        : PHP 5.4\nReleased under  : CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/)\nTemplate version: 20130720 (http://chaoticiak.comlu.com/prog/assorted/templates.phps)\n                           (http://ideone.com/AV2T2U)\n*/\n\n/** SECTION 1: SET UP INPUT HANDLER **/\n// 0: Don't output format at all\n// 1: Trim newline characters only\n// 2: Assume \\x00..\\x20 (accaw) as delimiters and output as array\n\nif (isset($inputstream)) {$stdin = $inputstream;} else {$stdin = fopen(\"php://stdin\", \"r\");}\nfunction g($format = 2) {\n    global $stdin;\n    $input = fgets($stdin);\n    if ($format == 0) {return $input;}\n    $input = trim($input, \"\\n\\r\");\n    if ($format == 1) {return $input;}\n    $input = trim($input, \"\\x00..\\x20\");\n    $input = preg_replace(\"/[\\\\x00-\\\\x20]+/\", \" \", $input);\n    return explode(\" \", $input);\n}\n\n/** SECTION 2: IMPORT FUNCTIONS FROM chaotic_iak'S LIBRARY **/\n// none\n\n/** SECTION 3: SOLVING THE PROBLEM **/\n$raw = g();\n$x = $raw[0];\n$y = $raw[1];\n$sum = abs($x)+abs($y);\n\n$signx = ($x > 0) ? 1 : -1;\n$signy = ($y > 0) ? 1 : -1;\n\n$points = array(array(0,0), array(0,0));\n$points[0][0] = $signx * $sum;\n$points[1][1] = $signy * $sum;\n\nif ($points[0][0] < $points[1][0]) {echo $points[0][0] . \" \" . $points[0][1] . \" \" . $points[1][0] . \" \" . $points[1][1];} else {echo $points[1][0] . \" \" . $points[1][1] . \" \" . $points[0][0] . \" \" . $points[0][1];}", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "2bbf727629c15c29629e714bd7a386b7", "src_uid": "e2f15a9d9593eec2e19be3140a847712", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = abs($a) + abs($b);\nif(($a > 0) && ($b > 0))\n{\n     print \"0 \" . $c . \" \" . $c . \" 0\";\n}\nelseif(($a > 0) && ($b < 0))\n{\n     print \"0 -\" . $c . \" \" . $c . \" 0\";\n}\nelseif(($a < 0) && ($b > 0))\n{\n     print \"-\" . $c . \" 0 0 \" . $c;\n}\nelseif(($a < 0) && ($b < 0))\n{\n     print \"-\" . $c . \" 0 0 \" . \"-\" . $c;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "f4f253dd82bb3f46e2c8f613b1fdc0de", "src_uid": "e2f15a9d9593eec2e19be3140a847712", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*  $input = \"2 2\n..\n..\";*/\n    $input = file_get_contents(\"php://stdin\");\n    $split_text = explode(\" \",$input);\n    $split_text[0] = $split_text[0]-'0';\n    $split_text[1] = $split_text[1]-'0';\n    if($split_text[0]>=0 && $split_text[1]>=0){\n        $result = $split_text[0] + $split_text[1];\n        echo '0 '.$result.' '.$result.' 0';\n    }\n    elseif ($split_text[0]<0 && $split_text[1]>=0) {\n        $result = abs($split_text[0]) + $split_text[1];\n        echo '-'.$result.' 0 0 '.$result;\n    }elseif ($split_text[0]<0 && $split_text[1]<0) {\n        $result = $split_text[0] + $split_text[1];\n        echo $result.' 0 0 '.$result;\n    }else{\n        $result = $split_text[0] + abs($split_text[1]);\n        echo '0 -'.$result.' '.$result.' 0';\n    }\n        ", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "590b164d5a7304623df109103a24e530", "src_uid": "e2f15a9d9593eec2e19be3140a847712", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "        <?PHP\nlist($a, $b) = explode(' ', fgets(STDIN));\n$r = abs($a) + abs($b);\nif ($a >= 0 and $b >= 0) \n    echo \"0 $r $r 0\\n\";\nelse if ($a < 0 and $b >= 0)\n    echo \"-$r 0 0 $r\\n\";\nelse if ($a < 0 and $b < 0)\n    echo \"-$r 0 0 -$r\\n\";\nelse \n    echo \"0 -$r $r 0\\n\";\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "d351061c8b9d6a17a251db12a958329a", "src_uid": "e2f15a9d9593eec2e19be3140a847712", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$n = trim(fgets(STDIN));\n\tfunction counter($x){\n\t\t$res = array(2,7,2,3,3,4,2,5,1,2);\n\t\treturn $res[$x];\n\t}\n\techo (counter($n[0])*counter($n[1]));\n\t\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c10aa160bc3450b84906f8148fc3d719", "src_uid": "76c8bfa6789db8364a8ece0574cd31f5", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$file = STDIN;\n//$file = fopen('1q.txt','r');\n\n$s = trim(fgets($file));\n$s = str_pad($s,2,0, STR_PAD_LEFT);\n\n$data = array(\n    0 => 2,\n    1 => 7,\n    2 => 2,\n    3 => 3,\n    4 => 3,\n    5 => 4,\n    6 => 2,\n    7 => 5,\n    8 => 1,\n    9 => 2\n);\n\n$a[0] = substr($s,0,1);\n$a[1] = substr($s,1,1);\n\n$result =  $data[$a[0]]*$data[$a[1]];\n\necho ($result);\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6ab598d32d6cb089abed0dc954296926", "src_uid": "76c8bfa6789db8364a8ece0574cd31f5", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%s\",$num);\n$a = $num[0];\n$b = $num[1];\n$base = array(2,7,2,3,3,4,2,5,1,2);\necho $base[$a%10]*$base[$b%10];\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5d6be9d484cf5b9af26116de2f7e1835", "src_uid": "76c8bfa6789db8364a8ece0574cd31f5", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n$fileIN = fopen(\"php://stdin\", \"r\");\n$fileOUT = fopen(\"php://stdout\", \"w\");\n\n$n = trim(fgets($fileIN));\n$a = $n % 10;\n$b = floor($n / 10);\nfunction check($c1) {\n\n    $cifre = array();\n    $cifre[0] = array(1, 1, 1, 1, 1, 1, 0);\n    $cifre[1] = array(0, 1, 1, 0, 0, 0, 0);\n    $cifre[2] = array(1, 1, 0, 1, 1, 0, 1);\n    $cifre[3] = array(1, 1, 1, 1, 0, 0, 1);\n    $cifre[4] = array(0, 1, 1, 0, 0, 1, 1);\n    $cifre[5] = array(1, 0, 1, 1, 0, 1, 1);\n    $cifre[6] = array(1, 0, 1, 1, 1, 1, 1);\n    $cifre[7] = array(1, 1, 1, 0, 0, 0, 0);\n    $cifre[8] = array(1, 1, 1, 1, 1, 1, 1);\n    $cifre[9] = array(1, 1, 1, 1, 0, 1, 1);\n\n    $ret = 0;\n    for ($i = 0; $i <= 9; ++$i) {\n        $pos = 0;\n        for ($j = 0; $j <= 6; ++$j) {\n            if ($cifre[$c1][$j] == 0 && $cifre[$i][$j] == 1) {\n                $pos++;\n            }\n            if ($cifre[$c1][$j] == 0 && $cifre[$i][$j] == 0) {\n                $pos++;\n            }\n            if ($cifre[$c1][$j] == 1 && $cifre[$i][$j] == 1) {\n                $pos++;\n            }\n        }\n        if ($pos >= 7) {\n            $ret++;\n        }\n    }\n    return $ret;\n}\n\n//echo check($a) * check($b);\n\nfprintf($fileOUT, (check($a) * check($b)) . \"\\n\");\n\nfclose($fileIN);\nfclose($fileOUT);\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b078b4fcc38bbb515213ff5b2cac5de9", "src_uid": "76c8bfa6789db8364a8ece0574cd31f5", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = str_split($b);\n$d = array(\"1\", \"2\", \"3\", \"223\", \"5\", \"53\", \"7\", \"7222\", \"7332\");\narray_unshift($d, \" \");\nunset($d[0]);\n$e = \"\";\nfor($x = 0; $x < $a; $x++)\n{\n    if(($d[$c[$x]] != 0) && ($d[$c[$x]] != 1))\n    {\n        $e .= $d[$c[$x]];\n    }\n}\n$f = str_split($e);\nrsort($f);\nprint implode(\"\", $f);\n?>", "lang_cluster": "PHP", "tags": ["math", "sortings", "greedy"], "code_uid": "6d3665590dd82e1b419a5442573466a4", "src_uid": "60dbfc7a65702ae8bd4a587db1e06398", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$file = fopen('input.in', 'r');\n$file = STDIN;\n$n = trim(fgets($file));\n$aArray = str_split(trim(fgets($file)));\n$rArray = array_fill(2, 8, 0);\nfor ($i = 0; $i < $n; $i++) {\n    switch ($aArray[$i]) {\n        case 2:\n            $rArray[2]++;\n            break;\n        case 3:\n            $rArray[3]++;\n            break;\n        case 4:\n            $rArray[2] += 2;\n            $rArray[3]++;\n            break;\n        case 5:\n            $rArray[5]++;\n            break;\n        case 6:\n            $rArray[5]++;\n            $rArray[3]++;\n            break;\n        case 7:\n            $rArray[7]++;\n            break;\n        case 8:\n            $rArray[7]++;\n            $rArray[2] += 3;\n            break;\n        case 9:\n            $rArray[7]++;\n            $rArray[2] += 1;\n            $rArray[3] += 2;\n            break;\n        default:\n            continue;\n            break;\n    }\n}\nfor ($i = 9; $i > 1; $i--) {\n    for ($j = 0; $j < $rArray[$i]; $j++) {\n        echo $i;\n    }\n}", "lang_cluster": "PHP", "tags": ["math", "sortings", "greedy"], "code_uid": "67761c7db8c77992b76aefeb4130cc5d", "src_uid": "60dbfc7a65702ae8bd4a587db1e06398", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = (int)fgets(STDIN);\n$a = trim(fgets(STDIN));\n\n$etalons = array(\n  0 => array(),\n  1 => array(),\n  2 => array(2 => 1),\n  3 => array(2 => 1, 3 => 1),\n  4 => array(2 => 3, 3 => 1),\n  5 => array(2 => 3, 3 => 1, 5 => 1),\n  6 => array(2 => 4, 3 => 2, 5 => 1),\n  7 => array(2 => 4, 3 => 2, 5 => 1, 7 => 1),\n  8 => array(2 => 7, 3 => 2, 5 => 1, 7 => 1),\n  9 => array(2 => 7, 3 => 4, 5 => 1, 7 => 1),\n);\n\n$counts = array(2 => 0, 3 => 0, 5 => 0, 7 => 0);\nforeach (str_split($a) as $dig) {\n  foreach ($etalons[$dig] as $num => $count) {\n    $counts[$num] += $count;\n  }\n}\n\n$asmDigits = array();\nwhile ($counts[7]) {\n  $asmDigits[] = 7;\n  foreach ($etalons[7] as $num => $count) {\n    $counts[$num] -= $count;\n  }\n}\nwhile ($counts[5]) {\n  $asmDigits[] = 5;\n  foreach ($etalons[5] as $num => $count) {\n    $counts[$num] -= $count;\n  }\n}\nwhile ($counts[3]) {\n  $asmDigits[] = 3;\n  foreach ($etalons[3] as $num => $count) {\n    $counts[$num] -= $count;\n  }\n}\nwhile ($counts[2]) {\n  $asmDigits[] = 2;\n  foreach ($etalons[2] as $num => $count) {\n    $counts[$num] -= $count;\n  }\n}\n\nrsort($asmDigits);\necho implode('', $asmDigits), \"\\n\";\n\n\n\n", "lang_cluster": "PHP", "tags": ["math", "sortings", "greedy"], "code_uid": "605b766588724563f22b663da08103b1", "src_uid": "60dbfc7a65702ae8bd4a587db1e06398", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\ntrim(fgets(STDIN));\n$num = trim(trim(fgets(STDIN)),'0');\n$num .= '';\n$map = array();\n$map[0] = array(); \n$map[1] = array(); \n$map[2] = array(2); \n$map[3] = array(3); \n$map[4] = array(2,2,3); \n$map[5] = array(5);\n$map[6] = array(5,3);\n$map[7] = array(7);\n$map[8] = array(7,2,2,2);\n$map[9] = array(7,3,3,2);\n$final = array();\n$len = strlen($num);\nfor($i = 0; $i < $len; $i++) {\n\t$rem = substr($num,$i,1)+0; \n\t$final = array_merge($final, $map[$rem]);\n}\nsort($final);\necho implode(\"\",  array_reverse($final));\n?>", "lang_cluster": "PHP", "tags": ["math", "sortings", "greedy"], "code_uid": "e98f7174dfe5445d84d2a27145e3e982", "src_uid": "60dbfc7a65702ae8bd4a587db1e06398", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction readArrayInt($std)\n{\n    $str = ReadArrayString($std);\n    $a = array();\n    $n = count($str);\n    for ($i = 0; $i < $n; ++$i)\n    {\n        $a[] = $str[$i] + 0;\n    }\n    return $a;\n}\n\nfunction ReadArrayString($std)\n{\n    $str = trim(fgets($std));\n    $str = explode(' ', $str);\n    return $str;\n}\n\n$stdin = fopen(\"php://stdin\", 'r');\n$s = ReadArrayString($stdin)[0];\n$len = strlen($s);\necho $len * 25 + 26;\nfclose($stdin);\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "strings"], "code_uid": "35f422a5d4ce03eaf5dc8646eb51b04e", "src_uid": "556684d96d78264ad07c0cdd3b784bc9", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(\"a\", \"b\", \"c\", \"d\", \"e\", \"f\", \"g\", \"h\", \"i\", \"j\", \"k\", \"l\", \"m\", \"n\", \"o\", \"p\", \"q\", \"r\", \"s\", \"t\", \"u\", \"v\", \"w\", \"x\", \"y\", \"z\");\n$c = array();\nfor($x = 0; $x < strlen($a) + 1; $x++)\n{\n    for($y = 0; $y < 26; $y++)\n    {\n        $d = substr($a, 0, $x);\n        $e = substr($a, $x);\n        $f = $d . $b[$y] . $e;\n        array_push($c, $f);\n    }\n}\n$g = array_unique($c);\nprint count($g);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "strings"], "code_uid": "2cb71bb88004732d078182a211514df5", "src_uid": "556684d96d78264ad07c0cdd3b784bc9", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array(0, 1, 2, 2, 1, 0);\n$d = array(1, 0, 0, 1, 2, 2);\n$e = array(2, 2, 1, 0, 0, 1);\nif($a <= 5)\n{\n     if($c[$a] == $b)\n     {\n          print \"0\";\n     }\n     elseif($d[$a] == $b)\n     {\n          print \"1\";\n     }\n     elseif($e[$a] == $b)\n     {\n          print \"2\";\n     }\n}\nelse\n{\n     $f = $a % 6;\n     if($c[$f] == $b)\n     {\n          print \"0\";\n     }\n     elseif($d[$f] == $b)\n     {\n          print \"1\";\n     }\n     elseif($e[$f] == $b)\n     {\n          print \"2\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms", "implementation"], "code_uid": "90c1fb690c9a3331ee10dd6421e35cfc", "src_uid": "7853e03d520cd71571a6079cdfc4c4b0", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = array_sum($c);\n$e = round($d / $a);\n$f = 0;\nwhile(TRUE)\n{\n     if($e == $b)\n     {\n          break;\n     }\n     else\n     {\n          $a++;\n          $d += $b;\n          $e = round($d / $a);\n          $f++;\n     }\n}\nprint $f;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "6f7ca3091637941d6e2ca834866c9786", "src_uid": "f22267bf3fad0bf342ecf4c27ad3a900", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = 0;\n$k = 0;\n$data = array();\n\n$i = 0;\nwhile($line = trim(fgets(STDIN)))\n{\n\tif (empty($line)) {\n\t\tbreak;\n\t}\n    if ($i === 0) {\n    \tlist($n, $k) = explode(' ', $line);\n    \t$n = intval($n);\n    \t$k = intval($k);\n    } else {\n    \t$data = explode(' ', $line);\n    \tarray_walk($data, function (&$v, $k) { $v = intval($v); }); \n    }\n    $i++;\n}\n\n$marksSum = array_sum($data);\n$marksCount = count($data);\n$currentMark = $marksSum / $marksCount;\n$requiredMark = floor($k) - 0.5;\n\nwhile ($currentMark < $requiredMark) {\n\t$marksCount++;\n\t$marksSum += $k;\n\t$currentMark = $marksSum / $marksCount;\n}\n\necho $marksCount - $n;", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "f8559f9f3e914bdfa248d7df7e8df872", "src_uid": "f22267bf3fad0bf342ecf4c27ad3a900", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=explode(' ',trim(fgets(STDIN)));\n$b=explode(' ',trim(fgets(STDIN)));\n$i=0;\nwhile (true){\n    if ((array_sum($b)+$i*$a[1])/(count($b)+$i)>=$a[1]-0.5){\n        print $i;\n        break;\n    }\n    $i++;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "ba8fd29e27ae415eb81f52fdb6ef5e50", "src_uid": "f22267bf3fad0bf342ecf4c27ad3a900", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line0 = trim(fgets(STDIN));\n$line1 = trim(fgets(STDIN));\n$line2 = trim(fgets(STDIN));\n\n$line0 = str_split($line0);\n$line1 = str_split($line1);\n$line2 = str_split($line2);\n\n$data = array_merge($line0, $line1, $line2);\n\n$counts = array();\n$counts['X'] = 0;\n$counts['O'] = 0;\n$counts['.'] = 0;\n\nforeach ($data as $value) {\n    $counts[$value]++;\n}\n//rjvvtyn\n\n$illegal = false;\n$draw = false;\n\n// illegal\n\nif (($counts['X'] - $counts['0']) > 1 || $counts['0'] > $counts['X']) $illegal = true;\n\n// defining if someone won\n\nfunction fullRow($array, $rowNum, $sign) {\n    $index = $rowNum * 3;\n    \n    if ($array[$index] == $sign && $array[$index + 1] == $sign && $array[$index + 2] == $sign) return true;\n    else return false;\n}\n\nfunction fullCol($array, $colNum, $sign) {\n    if ($array[$colNum] == $sign && $array[$colNum + 3] == $sign && $array[$colNum + 6] == $sign) return true;\n    else return false;\n} \n\nfunction fullDiag1($array, $sign) {\n    if ($array[0] == $sign && $array[4] == $sign && $array[8] == $sign) return true; \n    else return false;\n} \n\nfunction fullDiag2($array, $sign) {\n    if ($array[2] == $sign && $array[4] == $sign && $array[6] == $sign) return true; \n    else return false;\n} \n\nfunction playerWon($array, $sign) {\n    for ($i = 0; $i < 3; $i++)\n    {\n        if (fullCol($array, $i, $sign)) return true;\n        if (fullRow($array, $i, $sign)) return true;\n    }\n    \n    if (fullDiag1($array, $sign) || fullDiag2($array, $sign)) return true;\n    else return false;\n}\n\n$xWon = playerWon($data, 'X');\n$oWon = playerWon($data, '0');\n\nif (($xWon and $oWon) || (( $oWon && ($counts['0'] + 1 == $counts['X'])) || ($xWon && ($counts['0'] == $counts['X'])))) $illegal = true;\n\n// draw\n\nif ($illegal) echo 'illegal';\nelse if ($xWon || $oWon)\n{\n        if ($xWon) echo 'the first player won';\n        else echo 'the second player won';\n}\nelse\n{\n    if ($counts['X'] + $counts['0'] == 9)\n    {\n        echo 'draw';\n    }\n    else\n    {\n        if ($counts['X'] > $counts['0']) echo 'second';\n        if ($counts['X'] <= $counts['0']) echo 'first';\n        //else echo 'first';\n    }\n}\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "games"], "code_uid": "ee9ad15e448f9bb01c562f4efa760ebd", "src_uid": "892680e26369325fb00d15543a96192c", "difficulty": 1800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n\n// $a = \"00X\";\n// $b = \"0XX\";\n// $c = \"0X.\";\n\n$board[0] = array($a[0],$a[1],$a[2]);\n$board[1] = array($b[0],$b[1],$b[2]);\n$board[2] = array($c[0],$c[1],$c[2]);\n$xCount = 0;\n$yCount = 0;\n\nfor($i=0;$i<3;$i++){\n    for($j=0;$j<3;$j++){\n        if($board[$i][$j]===\"X\"){\n            $xCount +=1;\n        }else if($board[$i][$j]===\"0\"){\n            $yCount +=1;\n        }\n    }\n}\n$gotResult = 0;\nif(($xCount-$yCount)>1 ||$yCount>$xCount){\n    echo \"illegal\";\n    $gotResult = true;\n}\n\nif(!$gotResult){\n    // //horizon\n    // $success1 = $board[0][0].$board[1][0].$board[2][0];\n    // $success2 = $board[0][1].$board[1][1].$board[2][1];\n    // $success3 = $board[0][2].$board[1][2].$board[2][2];\n\n    // //vertical\n    // $success4 = $board[0][0].$board[0][1].$board[0][2];\n    // $success5 = $board[1][0].$board[1][1].$board[1][2];\n    // $success6 = $board[2][0].$board[2][1].$board[2][2];\n\n    // //diagonal\n    // $success7 = $board[0][0].$board[1][1].$board[2][2];\n    // $success8 = $board[0][2].$board[1][1].$board[2][0];\n\n    $n =count($board[0]);\n\n    $xWin = false;\n    $yWin = false;\n    //Vertical and Horizontal\n    //O(n^2)???\n    for($i=0;$i<$n;$i++){\n        $hStr = \"\";\n        $vStr = \"\";\n        \n        for($j=0;$j<$n;$j++){\n            $hStr .= $board[$i][$j];\n            $vStr .= $board[$j][$i];\n        }\n        if($hStr ===\"XXX\" || $vStr ===\"XXX\"){\n            $xWin =true;\n        }else if($hStr ===\"000\" || $vStr ===\"000\"){\n            $yWin =true;\n        }\n    }\n\n    //Diagonal\n    //O(n^2)???\n    $lDia = \"\";\n    $rDia = \"\";\n    for($i=0;$i<$n;$i++){\n        $lDia .=$board[$i][$i];\n        $rDia .=$board[$i][$n-1-$i];\n    }\n    if($lDia ===\"XXX\" || $rDia===\"XXX\"){\n        $xWin = true;\n    }else if($lDia ===\"000\" ||$rDia ===\"000\"){\n        $yWin = true;\n    }\n    \n    if($xWin && $ywin){\n        echo \"illegal\";\n    }else if($xWin && $xCount == $yCount){\n        echo \"illegal\";\n    }else if($yWin && $xCount == ($yCount+1)){\n        echo \"illegal\";\n    }else if(!$xWin && !$yWin && ($xCount+$yCount)==9){\n        echo \"draw\";\n    }else if($xWin && !$yWin){\n        echo \"the first player won\";\n    }else if($yWin && !$xWin){\n        echo \"the second player won\";\n    }else if($xCount>$yCount){\n        echo \"second\";\n    }else{\n        echo \"first\";\n    }\n}\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "games"], "code_uid": "e200f6f10c7e9ea125bca3ea971a3774", "src_uid": "892680e26369325fb00d15543a96192c", "difficulty": 1800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$f1 = trim(fgets(STDIN));\n$f2 = trim(fgets(STDIN));\n$f3 = trim(fgets(STDIN));\n\n$xc = (($f1[0] == 'X')?1:0) + (($f1[1] == 'X')?1:0) + (($f1[2] == 'X')?1:0);\n$xc += (($f2[0] == 'X')?1:0) + (($f2[1] == 'X')?1:0) + (($f2[2] == 'X')?1:0);\n$xc += (($f3[0] == 'X')?1:0) + (($f3[1] == 'X')?1:0) + (($f3[2] == 'X')?1:0);\n\n$zc = (($f1[0] == '0')?1:0) + (($f1[1] == '0')?1:0) + (($f1[2] == '0')?1:0);\n$zc += (($f2[0] == '0')?1:0) + (($f2[1] == '0')?1:0) + (($f2[2] == '0')?1:0);\n$zc += (($f3[0] == '0')?1:0) + (($f3[1] == '0')?1:0) + (($f3[2] == '0')?1:0);\n\nif(($xc - $zc) > 1 || $zc > $xc) {print 'illegal'; exit(0);}\n\n$win1 = false; $win2 = false;\n\nif($f1 === 'XXX' || $f2 === 'XXX' || $f3 === 'XXX' || $f1[0].$f2[0].$f3[0] === 'XXX' || $f1[1].$f2[1].$f3[1] === 'XXX' || $f1[2].$f2[2].$f3[2] === 'XXX' || $f1[0].$f2[1].$f3[2] === 'XXX' || $f1[2].$f2[1].$f3[0] === 'XXX') $win1 = true;\n\nif($f1 === '000' || $f2 === '000' || $f3 === '000' || $f1[0].$f2[0].$f3[0] === '000' || $f1[1].$f2[1].$f3[1] === '000' || $f1[2].$f2[2].$f3[2] === '000' || $f1[0].$f2[1].$f3[2] === '000' || $f1[2].$f2[1].$f3[0] === '000') $win2 = true;\n\nif($win1 && $win2) {print 'illegal'; exit(0);}\n\nif($win1 && ($zc == $xc)) {print 'illegal'; exit(0);}\n\nif($win2 && (($zc + 1) == $xc)) {print 'illegal'; exit(0);}\n\nif($win1 && !$win2) {print 'the first player won'; exit(0);}\n\nif(!$win1 && $win2) {print 'the second player won'; exit(0);}\n\nif(!$win1 && !$win2 && ($xc + $zc) == 9) {print 'draw'; exit(0);}\n\nif($xc > $zc) {print 'second'; exit(0);}else{print 'first'; exit(0);}\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "games"], "code_uid": "ceaed5d368484b3ad91bf9f68166a30a", "src_uid": "892680e26369325fb00d15543a96192c", "difficulty": 1800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$line0 = trim(fgets(STDIN));\n$line1 = trim(fgets(STDIN));\n$line2 = trim(fgets(STDIN));\n\n$line0 = str_split($line0);\n$line1 = str_split($line1);\n$line2 = str_split($line2);\n\n$data = array_merge($line0, $line1, $line2);\n\n$counts = array();\n$counts['X'] = 0;\n$counts['O'] = 0;\n$counts['.'] = 0;\n\nforeach ($data as $value) {\n    $counts[$value]++;\n}\n\n$illegal = false;\n$draw = false;\n\n// illegal\n\nif (($counts['X'] - $counts['0']) > 1 || $counts['0'] > $counts['X']) $illegal = true;\n\n// defining if someone won\n\nfunction fullRow($array, $rowNum, $sign) {\n    $index = $rowNum * 3;\n    \n    if ($array[$index] == $sign && $array[$index + 1] == $sign && $array[$index + 2] == $sign) return true;\n    else return false;\n}\n\nfunction fullCol($array, $colNum, $sign) {\n    if ($array[$colNum] == $sign && $array[$colNum + 3] == $sign && $array[$colNum + 6] == $sign) return true;\n    else return false;\n} \n\nfunction fullDiag1($array, $sign) {\n    if ($array[0] == $sign && $array[4] == $sign && $array[8] == $sign) return true; \n    else return false;\n} \n\nfunction fullDiag2($array, $sign) {\n    if ($array[2] == $sign && $array[4] == $sign && $array[6] == $sign) return true; \n    else return false;\n} \n\nfunction playerWon($array, $sign) {\n    for ($i = 0; $i < 3; $i++)\n    {\n        if (fullCol($array, $i, $sign)) return true;\n        if (fullRow($array, $i, $sign)) return true;\n    }\n    \n    if (fullDiag1($array, $sign) || fullDiag2($array, $sign)) return true;\n    else return false;\n}\n\n$xWon = playerWon($data, 'X');\n$oWon = playerWon($data, '0');\n\nif (($xWon and $oWon) || (( $oWon && ($counts['0'] + 1 == $counts['X'])) || ($xWon && ($counts['0'] == $counts['X'])))) $illegal = true;\n\n// draw\n\nif ($illegal) echo 'illegal';\nelse if ($xWon || $oWon)\n{\n        if ($xWon) echo 'the first player won';\n        else echo 'the second player won';\n}\nelse\n{\n    if ($counts['X'] + $counts['0'] == 9)\n    {\n        echo 'draw';\n    }\n    else\n    {\n        if ($counts['X'] > $counts['0']) echo 'second';\n        if ($counts['X'] <= $counts['0']) echo 'first';\n        //else echo 'first';\n    }\n}\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "games"], "code_uid": "b8e11dfa09a6a72101c5c504ae666c6a", "src_uid": "892680e26369325fb00d15543a96192c", "difficulty": 1800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = $a / 2;\nif((($b <= $d) && ($c > $d)) || (($c <= $d) && ($b > $d)))\n{\n     print \"Final!\";\n}\nelse\n{\n     $e = range(1, $a);\n     $g = 1;\n     $h = 0;\n     while(TRUE)\n     {\n          $f = array();\n          for($x = 0; $x < count($e) - 1; $x++)\n          {\n               if((($e[$x] == $b) && ($e[$x + 1] == $c)) || (($e[$x] == $c) && ($e[$x + 1] == $b)))\n               {\n                    $h = 1;\n                    break;\n               }\n               elseif((($e[$x] == $b) && ($e[$x + 1] != $c)) || (($e[$x] != $c) && ($e[$x + 1] == $b)))\n               {\n                    $f[count($f)] = $b;\n               }\n               elseif((($e[$x] != $b) && ($e[$x + 1] == $c)) || (($e[$x] == $c) && ($e[$x + 1] != $b)))\n               {\n                    $f[count($f)] = $c;\n               }\n               elseif((($e[$x] != $b) && ($e[$x + 1] != $c)) || (($e[$x] != $c) && ($e[$x + 1] != $b)))\n               {\n                    $f[count($f)] = $e[$x];\n               }\n               $x++;\n          }\n          if($h == 0)\n          {\n               $e = $f;\n               $g++;\n          }\n          else\n          {\n               break;\n          }\n     }\n     print $g;\n}\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "a3cf839a4c38e4f179fd915e44219396", "src_uid": "a753bfa7bde157e108f34a28240f441f", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$file = file_get_contents('php://stdin');\n\n$file = preg_replace(\"/[^0-9a-z]+/i\",\" \",$file);\n\n$number = explode(' ', $file);\n\n// print_r($number);\n\n\n$w = $number[0];\n$h = $number[1];\n$k = $number[2];\n\n    $result = 0;\n    $result += ($w + $h - 2) * 2;\n    for ($i = $k - 1; $i > 0; $i--){\n        $w -= 4;\n        $h -= 4;\n        $result += ($w + $h - 2) * 2;\n}\n\n// echo $result;\nfile_put_contents('php://stdout', $result);\n\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "e146ceb173349aea7a1d14f8a45cc6f3", "src_uid": "2c98d59917337cb321d76f72a1b3c057", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = 0;\nfor($x = 1; $x <= $c; $x++)\n{\n     $d += $a + $a + ($b - 2) + ($b - 2);\n     $a -= 4;\n     $b -= 4;\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "48afe45694bea52f2255a834c4b37a27", "src_uid": "2c98d59917337cb321d76f72a1b3c057", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$line = fgets(STDIN);\n\nsscanf($line, '%d %d %d', $w, $h, $k);\n\n$n = 0;\n\nfor ($i = 0; $i < $k; $i++) {\n    $width = $w - $i * 4;\n    $height = $h - $i * 4;\n    $n += $width * 2 + $height * 2 - 4;\n}\n\necho $n;", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "2484ee7b27ccd2b49da076752d612192", "src_uid": "2c98d59917337cb321d76f72a1b3c057", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($w, $h, $k) = explode(' ', readline());\n\n$ans = 0; $h-=2;\n\nfor($i=1; $i<=$k; $i++)\n{\n\t$ans += (($w+$w)+($h+$h));\n\t$w -= 4; $h -= 4;\n}\necho $ans.\"\\n\";", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "bae8bdc03c03456a48bd294e84dab1e1", "src_uid": "2c98d59917337cb321d76f72a1b3c057", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\r\n$mod = 1000000007;\r\n$intMaxValue = 2147483646; //2147483647\r\n \r\n$loop = true;\r\n$t = $loop ? IO::get() : 1;\r\nwhile($t--) {\r\n    solve();\r\n}\r\n \r\nfunction solve()\r\n{\r\n     $n = 2;\r\n     $t = 0;\r\n     for($i=0; $i<$n; $i++) {\r\n          $a = IO::getArray();\r\n          if($a[0] == 1) {\r\n              $t++;\r\n          }\r\n           if($a[1] == 1) {\r\n              $t++;\r\n          }\r\n     }\r\n    if($t > 0) {\r\n         $ans = $t == 4 ? 2 : 1;\r\n         \r\n    } else {\r\n         $ans = 0;\r\n    }\r\n    \r\n     \r\n     \r\n     \r\n     IO::pr($ans);\r\n    \r\n}\r\n \r\n \r\nclass IO {\r\n    public static function get()\r\n    {\r\n        return trim(fgets(STDIN));\r\n    }\r\n \r\n    public static function getArray()\r\n    {\r\n        return explode(' ', trim(fgets(STDIN)));\r\n    }\r\n    public static function pr($s)\r\n    {\r\n        echo $s, PHP_EOL;\r\n    }\r\n    public static function prArray($s)\r\n    {\r\n        echo implode( ' ', $s), PHP_EOL;\r\n    }\r\n    public static function getMinValue($x, $y) {\r\n        return $x > $y ? $y : $x;\r\n    }\r\n    public static function getMaxValue($x, $y) {\r\n        return $x > $y ? $x : $y;\r\n    }\r\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "81448db0b498a4f8e8857966c0152574", "src_uid": "7336b8becd2438f0439240ee8f9610ec", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\r\nfscanf(STDIN, \"%d\", $t);\r\nwhile ($t--) {\r\n    $a = [];\r\n    fscanf(STDIN, \"%d %d\", $a[0], $a[1]);\r\n    fscanf(STDIN, \"%d %d\", $a[2], $a[3]);\r\n    $a = array_unique($a);\r\n    printf(\"%d\\n\", (2 == count($a) ? 1 : [0, 2][$a[0]]));\r\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0a665b8e813ad2b5f9058ede93ea28a8", "src_uid": "7336b8becd2438f0439240ee8f9610ec", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    ini_set('error_reporting', E_ALL & ~E_NOTICE);\n\n    for ($i = 0; $i < 4; $i++) {\n        fscanf(STDIN, \"%s\", $m[$i]);\n    }\n\n    $t = array();\n\n    // 縦\n    for ($i = 0; $i < 4; $i++) {\n        for ($j = 0; $j < 4; $j++) {\n            $t[$i + 10] .= $m[$i][$j];\n            $t[$i + 30] .= $m[$j][$i];\n            $t[$i + $j + 50] .= $m[$i][$j];\n            $t[$i - $j + 70] .= $m[$i][$j];\n        }\n    }\n\n    // var_dump($t);\n\n    foreach ($t as $k => $v) {\n        if (preg_match(\"/(\\.xx|xx\\.|x\\.x)/\", $v)) {\n            echo \"YES\";\n            // echo $v;\n            exit;\n        }\n    }\n    echo \"NO\";\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "94634852f6165cc4fab4700b1d0ed473", "src_uid": "ca4a77fe9718b8bd0b3cc3d956e22917", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = str_split(trim(fgets(STDIN)));\n$b = str_split(trim(fgets(STDIN)));\n$c = str_split(trim(fgets(STDIN)));\n$d = str_split(trim(fgets(STDIN)));\n$e = array($a, $b, $c, $d);\n$f = 0;\nfor($x = 0; $x < 4; $x++)\n{\n     for($y = 0; $y < 2; $y++)\n     {\n          if(($e[$x][$y] == \"x\") && ($e[$x][$y + 1] == \"x\") && ($e[$x][$y + 2] == \".\"))\n          {\n               $f = 1;\n               break;\n          }\n     }\n     for($y = 0; $y < 2; $y++)\n     {\n          if(($e[$x][$y] == \".\") && ($e[$x][$y + 1] == \"x\") && ($e[$x][$y + 2] == \"x\"))\n          {\n               $f = 1;\n               break;\n          }\n     }\n     for($y = 0; $y < 2; $y++)\n     {\n          if(($e[$x][$y] == \"x\") && ($e[$x][$y + 1] == \".\") && ($e[$x][$y + 2] == \"x\"))\n          {\n               $f = 1;\n               break;\n          }\n     }\n}\n$g = array();\nfor($x = 0; $x < 4; $x++)\n{\n     for($y = 3; $y >= 0; $y--)\n     {\n          $h = $e[$x];\n          $g[$y][$x] = $h[$y];\n     }\n}\n$i = array();\nfor($x = 3; $x >= 0; $x--)\n{\n     $j = $g[$x];\n     $i[count($i)] = $j;\n}\nfor($x = 0; $x < 4; $x++)\n{\n     for($y = 0; $y < 2; $y++)\n     {\n          if(($i[$x][$y] == \"x\") && ($i[$x][$y + 1] == \"x\") && ($i[$x][$y + 2] == \".\"))\n          {\n               $f = 1;\n               break;\n          }\n     }\n     for($y = 0; $y < 2; $y++)\n     {\n          if(($i[$x][$y] == \".\") && ($i[$x][$y + 1] == \"x\") && ($i[$x][$y + 2] == \"x\"))\n          {\n               $f = 1;\n               break;\n          }\n     }\n     for($y = 0; $y < 2; $y++)\n     {\n          if(($i[$x][$y] == \"x\") && ($i[$x][$y + 1] == \".\") && ($i[$x][$y + 2] == \"x\"))\n          {\n               $f = 1;\n               break;\n          }\n     }\n}\nif(($e[0][1] == \"x\") && ($e[1][2] == \"x\") && ($e[2][3] == \".\"))\n{\n     $f = 1;\n}\nelseif(($e[0][1] == \".\") && ($e[1][2] == \"x\") && ($e[2][3] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[0][1] == \"x\") && ($e[1][2] == \".\") && ($e[2][3] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[0][0] == \"x\") && ($e[1][1] == \"x\") && ($e[2][2] == \".\"))\n{\n     $f = 1;\n}\nelseif(($e[1][1] == \"x\") && ($e[2][2] == \"x\") && ($e[3][3] == \".\"))\n{\n     $f = 1;\n}\nelseif(($e[0][0] == \"x\") && ($e[1][1] == \".\") && ($e[2][2] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[1][1] == \"x\") && ($e[2][2] == \".\") && ($e[3][3] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[0][0] == \"x\") && ($e[1][1] == \".\") && ($e[2][2] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[1][1] == \".\") && ($e[2][2] == \"x\") && ($e[3][3] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[1][0] == \"x\") && ($e[2][1] == \"x\") && ($e[3][2] == \".\"))\n{\n     $f = 1;\n}\nelseif(($e[1][0] == \".\") && ($e[2][1] == \"x\") && ($e[3][2] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[1][0] == \"x\") && ($e[2][1] == \".\") && ($e[3][2] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[0][2] == \"x\") && ($e[1][1] == \"x\") && ($e[2][0] == \".\"))\n{\n     $f = 1;\n}\nelseif(($e[0][2] == \".\") && ($e[1][1] == \"x\") && ($e[2][0] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[0][2] == \"x\") && ($e[1][1] == \".\") && ($e[2][0] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[0][3] == \"x\") && ($e[1][2] == \"x\") && ($e[2][1] == \".\"))\n{\n     $f = 1;\n}\nelseif(($e[0][3] == \".\") && ($e[1][2] == \"x\") && ($e[2][1] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[0][3] == \"x\") && ($e[1][2] == \".\") && ($e[2][1] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[1][2] == \"x\") && ($e[2][1] == \".\") && ($e[3][0] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[1][2] == \"x\") && ($e[2][1] == \".\") && ($e[3][0] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[1][2] == \".\") && ($e[2][1] == \"x\") && ($e[3][0] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[1][3] == \"x\") && ($e[2][2] == \"x\") && ($e[3][1] == \".\"))\n{\n     $f = 1;\n}\nelseif(($e[1][3] == \".\") && ($e[2][2] == \"x\") && ($e[3][1] == \"x\"))\n{\n     $f = 1;\n}\nelseif(($e[1][3] == \"x\") && ($e[2][2] == \".\") && ($e[3][1] == \"x\"))\n{\n     $f = 1;\n}\nif($f == 1)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "49a67d618c09daa4471643b27dd58618", "src_uid": "ca4a77fe9718b8bd0b3cc3d956e22917", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = explode(\" \", trim(fgets(STDIN)));\n$e = explode(\" \", trim(fgets(STDIN)));\n$f = min($d);\n$g = max($e);\nif($f < $g)\n{\n     if($c % $f == 0)\n     {\n          $h = $c / $f;\n          $i = 0;\n     }\n     else\n     {\n          $h = floor($c / $f);\n          $i = $c % $f;\n     }\n     print $g * $h + $i;\n}\nelse\n{\n     print $c;\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "de2e99fc927faaa7edd0e44c53a1125a", "src_uid": "42f25d492bddc12d3d89d39315d63cb9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n,$m,$k) = explode(' ', trim(fgets(STDIN)));\n$aBuy = explode(' ', trim(fgets(STDIN)));\n$aSell = explode(' ', trim(fgets(STDIN)));\n\n$aBuyMin = min($aBuy);\n$aSellMax = max($aSell);\nif($aBuyMin >= $aSellMax){\n    echo $k;\n} else {\n    $iBuyMin = min($aBuy);\n    $iSellMax = max($aSell);\n    $iCount = floor($k / $iBuyMin);\n    $iReminder = $k % $iBuyMin;\n    $iTotal = $iCount * $iSellMax  +  $iReminder;\n    echo $iTotal;\n}\n\n\n", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "e0657e5b5444f3bcda12bee32319eba9", "src_uid": "42f25d492bddc12d3d89d39315d63cb9", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = array();\n$f = array();\nfor($x = 1; $x <= 10000; $x++)\n{\n     $g = $a * $x;\n     $e[$x] = $g;\n     $h = $b * $x;\n     $f[$x] = $h;\n}\n$i = array_intersect($e, $f);\n$j = min($i);\n$k = floor($c / $j);\n$l = floor($d / $j);\nif(($c % $j == 0) && ($d % $j == 0))\n{\n     print $l - $k + 1;\n}\nelseif($c % $j == 0)\n{\n     print $l - $k + 1;\n}\nelseif($d % $j == 0)\n{\n     print $l - $k;\n}\nelse\n{\n     print $l - $k;\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "4753bdac787686f499ce93870c29065a", "src_uid": "c7aa8a95d5f8832015853cffa1374c48", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($x, $y, $a, $b) = explode(' ', line());\n\n$x = intval($x);\n$y = intval($y);\n$a = intval($a);\n$b = intval($b);\n\n$lcm = lcm($x, $y);\n\nprint intval($b / $lcm) - intval(($a - 1) / $lcm);\n\nfunction lcm($a, $b) {\n  return $a * ($b / gcd($a, $b));\n}\n\nfunction gcd($a, $b) {\n  return $b == 0 ? $a : gcd($b, $a % $b);\n}\n\nfunction line() {\n  return trim(fgets(STDIN));\n}\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "6d63470d346f3ba3315e5bbf1f7832e9", "src_uid": "c7aa8a95d5f8832015853cffa1374c48", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d%d%d\", $s1, $s2, $s3);\n    $a = sqrt($s1 * $s2 / $s3);\n    $b = sqrt($s2 * $s3 / $s1);\n    $c = sqrt($s1 * $s3 / $s2);\n    echo(4 * ($a + $b +$c));\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "geometry"], "code_uid": "66722dbe8c7c7e15d85ff04d10be38d1", "src_uid": "c0a3290be3b87f3a232ec19d4639fefc", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = sqrt($a * $b / $c);\n$e = sqrt($a * $c / $b);\n$f = sqrt($b * $c / $a);\nprint 4 * ($d + $e + $f);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "geometry"], "code_uid": "f377ba412cc25f6589a8a0ad168bcb0e", "src_uid": "c0a3290be3b87f3a232ec19d4639fefc", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    define (\"TEST\", false);  \n    if (TEST) $GLOBALS['file'] = fopen('input.txt', 'r');\n    else $GLOBALS['file'] = fopen('php://stdin', 'r');    \n    function readStr(){return trim(fgets($GLOBALS['file']));}\n    function readArr(){return explode(' ', readStr());}\n    /***************************************************************/\n\n    list($ab, $bc, $ac) = readArr();\n    $all2 = $ab*$bc*$ac;\n    $all = sqrt($all2);\n\n    $c = $all/$ab;\n    $a = $all/$bc;\n    $b = $all/$ac;\n\n    echo 4*$a + 4*$b + 4*$c;", "lang_cluster": "PHP", "tags": ["brute force", "math", "geometry"], "code_uid": "2afbbf2b87ef0f2e21638dbbc733f2d2", "src_uid": "c0a3290be3b87f3a232ec19d4639fefc", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$dir = fopen(\"php://stdin\", 'r');\n$s = stream_get_contents($dir);\n$s = str_replace(\"\\n\", \"\", $s);\n//$s=\"8679647744\";\n$s_array=str_split($s);\n$lucky=array();\n\nfor ($i=0; $i < count($s_array); $i++) { \n\tif($s_array[$i]==\"4\" || $s_array[$i]==\"7\"){\n\t\tif(!isset($s_array[$i])){\n\t\t\t$lucky[$s_array[$i]]=1;\n\t\t}else{\n\t\t\t$lucky[$s_array[$i]]++;\n\t\t}\n\t}\n}\nksort($lucky);\nif(!count($lucky)){\n\techo -1;\n}else{\n\t$bigger=0;\n\t$bigger_key=-1;\n\tforeach ($lucky as $key => $value) { \n\t\tif($value > $bigger){\n\t\t\t$bigger = $value;\n\t\t\t$bigger_key = $key;\n\t\t}\t\t\n\t}\n}\necho $bigger_key;", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "140c2acd1eb15c2a0d21a914e835f04c", "src_uid": "639b8b8d0dc42df46b139f0aeb3a7a0a", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split($a);\n$c = 0;\n$d = 0;\nfor($x = 0; $x < count($b); $x++)\n{\n    if($b[$x] == \"4\")\n    {\n        $c++;\n    }\n    if($b[$x] == \"7\")\n    {\n        $d++;\n    }\n}\nif(($c >= $d) && ($c > 0))\n{\n    print \"4\";\n}\nelseif($c < $d)\n{\n    print \"7\";\n}\nelseif(($c == \"0\") && ($d == \"0\"))\n{\n    print \"-1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "3e2d5539f4e984ddc19115a8aa2a4530", "src_uid": "639b8b8d0dc42df46b139f0aeb3a7a0a", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$dir = fopen(\"php://stdin\", 'r');\n$s = stream_get_contents($dir);\n$s = str_replace(\"\\n\", \"\", $s);\n//$s=\"8679647744\";\n$s_array=str_split($s);\n\n$lucky=array();\n$subs=\"\";\n\nfor ($i=0; $i < count($s_array); $i++) { \n\tif($s_array[$i]==\"4\" || $s_array[$i]==\"7\"){\n\t\t//echo $s_array[$i].\"\\n\";\n\t\t//$subs.= $s_array[$i];\n\t\t/*save and check next*/\n\t\tif(!isset($s_array[$i])){\n\t\t\t$lucky[$s_array[$i]]=1;\n\t\t}else{\n\t\t\t$lucky[$s_array[$i]]++;\n\t\t}\n\t}else{\n\t\t//$subs=\"\";\n\t}\t\n\n}\nksort($lucky);\n//echo count($lucky);\nif(!count($lucky)){\n\techo -1;\n}else{\n\t$bigger=0;\n\t$bigger_key=-1;\n\tforeach ($lucky as $key => $value) { \n\t\tif($value > $bigger){\n\t\t\t$bigger = $value;\n\t\t\t$bigger_key = $key;\n\t\t}\t\t\n\t}\n}\necho $bigger_key;\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "4476f4fc73b8763138c765dcc85440d7", "src_uid": "639b8b8d0dc42df46b139f0aeb3a7a0a", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array();\nfor($x = 0; $x < $a; $x++)\n{\n     $c = trim(fgets(STDIN));\n     $b[$x] = $c;\n}\n$d = array(0);\nfor($x = 0; $x < $a; $x++)\n{\n     $e = array();\n     for($y = 0; $y < count($d); $y++)\n     {\n          $f = $d[$y] - $b[$x];\n          $e[count($e)] = $f;\n          $g = $d[$y] + $b[$x];\n          $e[count($e)] = $g;\n     }\n     $d = $e;\n}\nfor($x = 0; $x < count($d); $x++)\n{\n     if($d[$x] != 0)\n     {\n          $d[$x] = abs($d[$x]) / 360;\n     }\n     else\n     {\n          $d[$x] = 0;\n     }\n}\n$f = 0;\nfor($x = 0; $x < count($d); $x++)\n{\n     if(is_int($d[$x]) == TRUE)\n     {\n          $f = 1;\n          break;\n     }\n}\nif($f == 1)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "dp", "bitmasks"], "code_uid": "ed32ff648189547506eefde4d6d7229b", "src_uid": "01b50fcba4185ceb1eb8e4ba04a0cc10", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = (int)trim(fgets(STDIN));\n$k = (int)trim(fgets(STDIN));\n$result = [$k, -$k];\n\nfor ($i=$n-1;$i>0;$i--) {\n    $k = (int)trim(fgets(STDIN));\n    $tmp = [];\n    foreach ($result as $r) {\n        $tmp[] = $r+$k;\n        $tmp[] = $r-$k;\n    }\n    $result = $tmp;\n}\nforeach ($result as $r) {\n        if ($r % 360 === 0) {\n            echo 'YES';\n            exit;\n        }\n}\necho 'NO';", "lang_cluster": "PHP", "tags": ["brute force", "dp", "bitmasks"], "code_uid": "0fb000d1d54b9e6293d08ddbd9060bc7", "src_uid": "01b50fcba4185ceb1eb8e4ba04a0cc10", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nfor($x = 1; $x <= $a - 1; $x++)\n{\n    if(($x == 1) && ($a == 2))\n    {\n        print implode(\" \", range(1, $a - 1));\n    }\n    elseif($x == 1)\n    {\n        print implode(\" \", range(1, $a - 1)) . \"\\n\";\n    }\n    else\n    {\n        print $x . \" \";\n        for($y = 2; $y <= $a - 1; $y++)\n        {\n            if(($y == $a - 1) && ($x != $a - 1))\n            {\n                print base_convert($x * $y, 10, $a) . \"\\n\";\n            }\n            else\n            {\n                print base_convert($x * $y, 10, $a) . \" \";\n            }\n        }\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "5eb2bd3e73e68593befa6aa5afcb2815", "src_uid": "a705144ace798d6b41068aa284d99050", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = fopen(\"php://stdin\", 'r');\n$n = stream_get_contents($s);\necho $n*($n-2)-($n-1)*2+2;\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "eb4502571f78f83791b8921bc3625db2", "src_uid": "efa8e7901a3084d34cfb1a6b18067f2b", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$file = fopen('input.in', 'r');\n$file = STDIN;\n$n = trim(fgets($file));\necho ($n - 2) * ($n - 2);", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "9c8a41c055a57929e9938a22f85909c6", "src_uid": "efa8e7901a3084d34cfb1a6b18067f2b", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = file_get_contents(\"php://stdin\");\n\n\necho ($n-2) * ($n-2);\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "29f20d0c47edd5d1d851f255bfca3c64", "src_uid": "efa8e7901a3084d34cfb1a6b18067f2b", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$dir                = fopen(\"php://stdin\", 'r');\n$contents           = stream_get_contents($dir);\n$inputs             = explode(\"\\n\",$contents);\n$problemsCount      = explode(' ', $inputs[0])[0];\n$solverSkill        = explode(' ', $inputs[0])[1];\n\n$problemDifficulty  = array_map('intval', explode(' ', $inputs[1]));\necho getMaximumProblems($problemsCount, $problemDifficulty, $solverSkill);\n\nfunction getMaximumProblems($problemsCount, $problemDifficulty, $solverSkill)\n{\n    $maximumSolvedProblems    = 0;\n    $firstProblemDifficulty   = $problemDifficulty[0];\n    $lastProblemDifficulty    = $problemDifficulty[$problemsCount - 1];\n    if($firstProblemDifficulty > $solverSkill && $lastProblemDifficulty  > $solverSkill)\n    {\n        return 0;\n    }\n    for($problemsCounter = 0; $problemsCounter < $problemsCount; $problemsCounter++)\n    {\n        if($problemDifficulty[$problemsCounter] <= $solverSkill)\n        {\n            $maximumSolvedProblems++;\n            unset($problemDifficulty[$problemsCounter]);\n        }\n        \n        if($problemDifficulty[$problemsCounter] > $solverSkill)\n        {\n            break;\n        }\n    }\n    \n    if(count($problemDifficulty) > 0) {\n        $reversedArray  = array_reverse($problemDifficulty);\n        for($problemsCounter = 0; $problemsCounter < count($problemDifficulty); $problemsCounter++)\n        {\n             if($reversedArray[$problemsCounter] <= $solverSkill)\n            {\n                $maximumSolvedProblems++;\n                unset($reversedArray[$problemsCounter]);\n            }\n            \n            if($reversedArray[$problemsCounter] > $solverSkill)\n            {\n                break;\n            }\n        }\n    }\n    \n    return $maximumSolvedProblems;\n}\n?>\n\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "eed00247725c2c0f9ae7a473b6cfbd65", "src_uid": "ecf0ead308d8a581dd233160a7e38173", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d %d\",$arrSize,$k);\n$arr=explode(' ',trim(fgets(STDIN)));\n$pos=array();\n$flag=0;\nfor ($i=0,$j=0; $i <$arrSize; $i++)\n{ \n\tif($arr[$i]>$k)\n\t{\n\t\t$pos[$j++]=$i;\n        $flag=1;\n\t\n\t}\n}\n//print_r($pos);\nif($flag==1)\n  echo $arrSize-1-abs($pos[count($pos)-1]-$pos[0]);\nelse\n  echo $arrSize;\n\n\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "139a07695efbb38e087cecf812d575ea", "src_uid": "ecf0ead308d8a581dd233160a7e38173", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = 0;\n$e = 0;\n$f = $a - 1;\nfor($x = 0; $x < $a; $x++)\n{\n     if($b >= $c[$e])\n     {\n          $d++;\n          $e++;\n     }\n     elseif($b >= $c[$f])\n     {\n          $d++;\n          $f--;\n     }\n     else\n     {\n          break;\n     }\n     if(($e == $f) && ($b >= $c[$e]))\n     {\n          $d++;\n          break;\n     }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "5a89169d4dff2033f5eec34d06e769c0", "src_uid": "ecf0ead308d8a581dd233160a7e38173", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\nlist($e, $f) = explode(\" \", trim(fgets(STDIN)));\nlist($g, $h) = explode(\" \", trim(fgets(STDIN)));\n$i = 0;\nif(($a > $f) && ($d > $g))\n{\n     $i++;\n}\nif(($a > $h) && ($d > $e))\n{\n     $i++;\n}\nif($i == 2)\n{\n     print \"Team 1\";\n}\nelse\n{\n     $i = 0;\n     if(($c > $f) && ($b > $g))\n     {\n          $i++;\n     }\n     if(($c > $h) && ($b > $e))\n     {\n          $i++;\n     }\n     if($i == 2)\n     {\n          print \"Team 1\";\n     }\n     else\n     {\n          if((($f > $a) && ($g > $d) && ($h > $c) && ($e > $b)) || (($h > $a) && ($e > $d) && ($f > $c) && ($g > $b)))\n          {\n               print \"Team 2\";\n          }\n          else\n          {\n               $i = 0;\n               if(($f > $a) && ($g > $d))\n               {\n                    $i++;\n               }\n               if(($f > $c) && ($g > $b))\n               {\n                    $i++;\n               }\n               if($i == 2)\n               {\n                    print \"Team 2\";\n               }\n               else\n               {\n                    $i = 0;\n                    if(($h > $a) && ($e > $d))\n                    {\n                         $i++;\n                    }\n                    if(($h > $c) && ($e > $b))\n                    {\n                         $i++;\n                    }\n                    if($i == 2)\n                    {\n                         print \"Team 2\";\n                    }\n                    else\n                    {\n                         print \"Draw\";\n                    }\n               }\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6679a36f762cd43aaa1796fb72e3e834", "src_uid": "1a70ed6f58028a7c7a86e73c28ff245f", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nif($a == $b)\n{\n     print \"0\";\n}\nelse\n{\n     $a2 = $a;\n     $c = array();\n     while($a < $b)\n     {\n          $a *= 2;\n          $c[count($c)] = 2;\n     }\n     $d = 0;\n     while(TRUE)\n     {\n          $e = array_product($c);\n          if(($a2 * $e) == $b)\n          {\n               $d = 1;\n               break;\n          }\n          else\n          {\n               sort($c);\n               if(($a2 * $e) < $b)\n               {\n                    if($c[0] == 2)\n                    {\n                         $c[0] = 3;\n                    }\n                    else\n                    {\n                         break;\n                    }\n               }\n               elseif(($a2 * $e) > $b)\n               {\n                    if(($c[0] == 2) && ($c[1] == 2))\n                    {\n                         array_splice($c, 0, 2);\n                         $c[count($c)] = 3;\n                    }\n                    else\n                    {\n                         break;\n                    }\n               }\n          }\n     }\n     if($d == 0)\n     {\n          print \"-1\";\n     }\n     else\n     {\n          print count($c);\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "ef96bc4ea341cd941e422f23e39b2620", "src_uid": "3f9980ad292185f63a80bce10705e806", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    \n    $inp = explode(' ', file_get_contents('php://stdin'));\n    $n = intval($inp[0]);\n    $m = intval($inp[1]);\n\n    if($n == $m)\n    {\n        echo \"0\";\n        exit();\n    }\n    else if($m % $n != 0)\n    {\n        echo \"-1\";\n        exit();\n    }\n\n    $div = $m / $n;\n    if($div % 2 != 0 && $div % 3 != 0)\n    {\n        echo \"-1\";\n        exit();\n    }\n\n    $divisors = [6, 3, 2];\n    $ans = 0;\n\n    for($i = 0; $i < 3; $i++)\n    {\n        while($div % $divisors[$i] == 0)\n        {\n            $ans += ($i == 0) ? 2 : 1;\n            $div /= $divisors[$i];\n        }\n    }\n\n    if($div == 1)\n        echo $ans;\n    else\n        echo \"-1\";\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "deeb2080aa14d8ef54f5db12fbd58398", "src_uid": "3f9980ad292185f63a80bce10705e806", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$data = trim(fgets(STDIN));\n\n$n = explode(' ', $data)[0];\n$m = explode(' ', $data)[1];\n\n$c = 0;\n\nif($m % $n == 0){\n\t$k = $m / $n;\n\twhile($k > 1){\n\t\tif($k % 2 == 0 || $k % 3 == 0){\n\t\t\t$k = ($k % 2 == 0 ? $k/2 : $k/3);\n\t\t\t$c++;\n\t\t}else{\n\t\t\t$c = -1;\n\t\t\tbreak;\n\t\t}\n\t}\n\tfwrite(STDOUT, $c);\n}else{\n\tfwrite(STDOUT, \"-1\");\n}", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "77c8ac159d24e5eba9531662d0418617", "src_uid": "3f9980ad292185f63a80bce10705e806", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$arr = explode(' ', trim(fgets(STDIN)));\n$result = 0;\n\nif ($arr[1] % $arr[0] != 0) {\n    $result = -1;\n} else {\n    $factor = $arr[1] / $arr[0];\n    while ($factor % 3 == 0) {\n        $result ++;\n        $factor = $factor / 3;\n    }\n    while ($factor % 2 == 0) {\n        $result ++;\n        $factor = $factor / 2;\n    }\n    if ($factor != 1) {\n        $result = -1;\n    }\n}\n\necho $result;", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "8113dcb096412bbf6a92717ad3fb8694", "src_uid": "3f9980ad292185f63a80bce10705e806", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(0 => \"zero\", 1 => \"one\", 2 => \"two\", 3 => \"three\", 4 => \"four\", 5 => \"five\", 6 => \"six\", 7 => \"seven\", 8 => \"eight\", 9 => \"nine\", 10 => \"ten\", 11 => \"eleven\", 12 => \"twelve\", 13 => \"thirteen\", 14 => \"fourteen\", 15 => \"fifteen\", 16 => \"sixteen\", 17 => \"seventeen\", 18 => \"eighteen\", 19 => \"nineteen\", 20 => \"twenty\", 30 => \"thirty\", 40 => \"forty\", 50 => \"fifty\", 60 => \"sixty\", 70 => \"seventy\", 80 => \"eighty\", 90 => \"ninety\");\n$c = array(2 => \"twenty-\", 3 => \"thirty-\", 4 => \"forty-\", 5 => \"fifty-\", 6 => \"sixty-\", 7 => \"seventy-\", 8 => \"eighty-\", 9 => \"ninety-\");\nif(($a <= 20) || ($a == 30) || ($a == 40) || ($a == 50) || ($a == 60) || ($a == 70) || ($a == 80) || ($a == 90))\n{\n    print $b[$a];\n}\nelse\n{\n    print $c[$a[0]] . $b[$a[1]];\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "c6e7c752254f70cba458132fcec5fa0f", "src_uid": "a49ca177b2f1f9d5341462a38a25d8b7", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// Входящее число: [0 < s < 99]\n$s = trim(fgets(STDIN));\n// Список числе от 1 до 19, 20, 30, 40, 50, 60, 70, 80, 90\n$numbers = array('0' => 'zero', '1' => 'one', '2' => 'two', '3' => 'three', '4' => 'four', '5' => 'five', '6' => 'six', '7' => 'seven', '8' => 'eight', '9' => 'nine', '10' => 'ten', '11' => 'eleven', '12' => 'twelve', '13' => 'thirteen', '14' => 'fourteen', '15' => 'fifteen', '16' => 'sixteen', '17' => 'seventeen', '18' => 'eighteen', '19' => 'nineteen', '20' => 'twenty', '30' => 'thirty', '40' => 'forty', '50' => 'fifty', '60' => 'sixty', '70' => 'seventy', '80' => 'eighty', '90' => 'ninety');\n// Если число меньше или равно 19\nif ($s <= 19) {\n\t$result = $numbers[$s];\n} else {\n\t// Проверяем второй символ введенного числа\n\tif($s[1]==0) {\n\t\t// Если 0, то выводим из массива\n\t\t$result = $numbers[$s];\n\t} else {\n\t\t// Если нет, то собираем число\n\t\t$first_number = $numbers[$s[0].'0'];\n\t\t$second_number = $numbers[$s[1]];\n\t\t$result = $first_number.'-'.$second_number;\n\t}\n}\nprint($result);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "dbf57c41cbe17b32086b850931eb0354", "src_uid": "a49ca177b2f1f9d5341462a38a25d8b7", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    \n$stdin = fopen('php://stdin','r');\n$n = trim(fgets($stdin));\n//$line = trim(fgets($stdin));\n//$a=explode(' ',$line);\nfclose($stdin);\n\n$m[0]='zero';\n\n$m[0]='zero';        \n$m[1]='one';             \n$m[2]='two';     \n$m[3]='three';      \n$m[4]='four';\n$m[5]='five';   \n$m[6]='six';        \n$m[7]='seven';      \n$m[8]='eight';   \n$m[9]='nine';   \n$m[11]='eleven';\n$m[10]='ten';   \n$m[12]='twelve';\n$m[13]='thirteen';\n$m[14]='fourteen';\n$m[15]='fifteen';\n$m[16]='sixteen';\n$m[17]='seventeen';\n$m[18]='eighteen';\n$m[19]='nineteen';\n$m[20]='twenty';\n$m[30]='thirty';\n$m[40]='forty';\n$m[50]='fifty';\n$m[60]='sixty';\n$m[70]='seventy';\n$m[80]='eighty';\n$m[90]='ninety';\nif ($n<=20) {$s=$m[$n];}\nelse {\n    if ($n%10==0) {$s=$m[$n];} else {$s=$m[floor($n/10)*10].'-'.$m[$n%10];}\n}\n\n\necho $s;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "27b3c718adfcbc35514a444fc39054ee", "src_uid": "a49ca177b2f1f9d5341462a38a25d8b7", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$number = readline();\n\n$stringNumbers = array(\n    1 => 'one',\n    2 => 'two',\n    3 => 'three',\n    4 => 'four',\n    5 => 'five',\n    6 => 'six',\n    7 => 'seven',\n    8 => 'eight',\n    9 => 'nine',\n    10 => 'ten',\n    11 => 'eleven',\n    12 => 'twelve',\n    13 => 'thirteen',\n    15 => 'fifteen',\n    18 => 'eighteen',\n);\n\n$stringFirstNumbers = array(\n    1 => '',\n    2 => 'twenty',\n    3 => 'thirty',\n    4 => 'forty',\n    5 => 'fifty',\n    6 => 'sixty',\n    7 => 'seventy',\n    8 => 'eighty',\n    9 => 'ninety',\n);\n\nif ($number <= 13 || $number == 15 || $number == 18)\n    echo $number == 0 ? 'zero' : $stringNumbers[$number];\n\nelse {\n    $firstNumber = $number / 10;\n    $secondNumber = $number % 10;\n\n    if ((int)$firstNumber == 1) echo $stringNumbers[(int)$secondNumber].'teen';\n\n    else echo $stringNumbers[(int)$secondNumber] ? $stringFirstNumbers[(int)$firstNumber].'-'.$stringNumbers[(int)$secondNumber] : $stringFirstNumbers[(int)$firstNumber];\n}", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "5424812ce4ff6d687644da691bd500e3", "src_uid": "a49ca177b2f1f9d5341462a38a25d8b7", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n// Входная строка\n$string = trim(fgets(STDIN));\n// Длина строки\n$string_length = strlen($string);\n// Искомое слово\n$word = 'CODEFORCES';\n// Длина искомого слова\n$word_length = strlen($word);\n// Ответ по-умолчанию\n$answer = 'NO';\n// Всего можно разделить слово \"CODEFORCES\" 9 способами \n// и 1 раз слово будет целиком \nfor($i=1; $i <= $word_length; $i++) {\n\t/*\n\tC ODEFORCES\n\tCO DEFORCES\n\tCOD EFORCES\n\tCODE FORCES\n\tCODEF ORCES\n\tCODEFO RCES\n\tCODEFOR CES\n\tCODEFORC ES\n\tCODEFORCE S\n\tCODEFORCES\n\t*/\n\t// Первая часть слова\n\t$first_slice = substr($word, 0, $i);\n\t// Вторая часть слова\n\t$second_slice = substr($word, $i, 11);\n\t// Длина второй части слова\n\t$second_slice_length = strlen($second_slice);\n\t// Есть ли в строке первая часть слова\n\t$pos = strpos($string, $first_slice);\n\tif ($pos === false) {\n\t\t// Нет совпадения \n\t} else {\n\t\t// Есть в какой-то позиции\n\t\tif($pos>0) {\n\t\t\t// Если первая часть слова не в начале, то\n\t\t\t// Разбиваем на 3 части правую часть строки\n\t\t\t// $string = $left.$center.$right;\n\t\t\t// До искомой первая части \n\t\t\t$left = substr($string, 0, $pos);\n\t\t\t// Сама первая часть слова\n\t\t\t$center = substr($string, $pos, $i);\n\t\t\t// Остаток строки (полностью)\n\t\t\t$right = substr($string, ($i+$pos), $string_length);\n\t\t\tif($right) {\n\t\t\t\t// Если существует правая часть, то неподходит, так как придется делить больше\n\t\t\t} else {\n\t\t\t\t// Если правой части нет, то центральная часть должна быть искомым слово\n\t\t\t\tif($center == $word) {\n\t\t\t\t\t$answer = 'YES';\n\t\t\t\t}\n\t\t\t}\n\t\t} else {\n\t\t\t// Если первая часть слова в начале, то правая часть строки (с конца) должна быть искомой второй частью слова\n\t\t\t// Обрезок правой строки (на длину слова)\n\t\t\t$right = substr($string, -$second_slice_length, $second_slice_length);\n\t\t\tif($right == $second_slice) {\n\t\t\t\t$answer = 'YES';\n\t\t\t}\n\t\t}\n\t}\n}\n// Вывожу ответ\nprint($answer);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "0d8c95c0ea63c36757c9be8ab52995e7", "src_uid": "bda4b15827c94b526643dfefc4bc36e7", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\nif (preg_match('#^(\\w+CODEFORCES|C\\w+ODEFORCES|CO\\w+DEFORCES|COD\\w+EFORCES|CODE\\w+FORCES|CODEF\\w+ORCES|CODEFO\\w+RCES|CODEFOR\\w+CES|CODEFORC\\w+ES|CODEFORCE\\w+S|CODEFORCES\\w+)$#s', $s)) {\n  echo \"YES\\n\";\n} else {\n  echo \"NO\\n\";\n}", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "98ec54b4226a872ef5ada750befda618", "src_uid": "bda4b15827c94b526643dfefc4bc36e7", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t// Main Computation\n\tfunction cuttingBanner($text = '') {\n\t\t$pattern = 'CODEFORCES';\n\t\t$n       = strlen($pattern);\n\t\tfor ($i = 0; $i <= $n; $i++) {\n\t\t\t$substr  = substr($text, 0, $i);\n\t\t\t$substr .= ($i < $n) ? substr($text, - ($n - $i)) : '';\n\t\t\tif ($substr == $pattern) {\n\t\t\t\treturn 'YES';\n\t\t\t}\n\t\t}\n\t\treturn 'NO';\n\t}\n\t// Main\n\tfunction main() {\n\t\t$stdin = fopen(\"php://stdin\", \"r\");\n\t\t$text = fgets($stdin, 200);\n\t\t$text = preg_replace(\"/[^A-Z]/\", '', $text);\n\t\tprint cuttingBanner($text) . \"\\n\";\n\t}\n\t\n\tmain();\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "5c1da4358138c801f38f2a4389a618f3", "src_uid": "bda4b15827c94b526643dfefc4bc36e7", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n\n$fileIN = fopen(\"php://stdin\", \"r\");\n$fileOUT = fopen(\"php://stdout\", \"w\");\n\n$initialBanner = trim(fgets($fileIN));\n$searchCodeforces = \"CODEFORCES\";\n\n$sufixe = array();\n$prefixe = array();\n\n$le = 0;\n$ri = 0;\n\nfor ($i = 0; $i < min(strlen($searchCodeforces), strlen($initialBanner)); ++$i) {\n    if ($searchCodeforces[$i] == $initialBanner[$i]) {\n        $le++;\n    } else {\n        break;\n    }\n}\n\n$revin = strrev($initialBanner);\n$codin = strrev($searchCodeforces);\n\nfor ($i = 0; $i < min(strlen($revin), strlen($codin)); ++$i) {\n    if ($revin[$i] == $codin[$i]) {\n        $ri++;\n    } else {\n        break;\n    }\n}\n\nif ($ri + $le >= 10) {\n    fprintf($fileOUT, \"YES\\n\");\n} else {\n    fprintf($fileOUT, \"NO\\n\");\n}\n\nfclose($fileIN);\nfclose($fileOUT);\n\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "4ac2aaffb3871d878b164ae11b369248", "src_uid": "bda4b15827c94b526643dfefc4bc36e7", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = \" \" . trim(fgets(STDIN));\n$b = \"CODEFORCES\";\n$c = strpos($a, $b);\nif(($c === 1) || ($c === (strlen($a) - 10)))\n{\n    print \"YES\";\n}\nelse\n{\n    $d = array(\"C\", \"CO\", \"COD\", \"CODE\", \"CODEF\", \"CODEFO\", \"CODEFOR\", \"CODEFORC\", \"CODEFORCE\");\n    $e = array(\"ODEFORCES\", \"DEFORCES\", \"EFORCES\", \"FORCES\", \"ORCES\", \"RCES\", \"CES\", \"ES\", \"S\");\n    $f = 0;\n    for($x = 0; $x < 9; $x++)\n    {\n        $g = substr($a, 1, $x + 1);\n        $h = substr($a, strlen($a) - 9 + $x);\n        if(($g == $d[$x]) && ($h == $e[$x]))\n        {\n            $f = 1;\n            break;\n        }\n    }\n    if($f == 1)\n    {\n        print \"YES\";\n    }\n    else\n    {\n        print \"NO\";\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "459601a5ba198e9a1941c8d8700de554", "src_uid": "bda4b15827c94b526643dfefc4bc36e7", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $subject = trim(fgets(STDIN));\n    $patterns = array(\n        '/^([A-Z]+)CODEFORCES$/',\n        '/^C([A-Z]+)ODEFORCES$/',\n        '/^CO([A-Z]+)DEFORCES$/',\n        '/^COD([A-Z]+)EFORCES$/',\n        '/^CODE([A-Z]+)FORCES$/',\n        '/^CODEF([A-Z]+)ORCES$/',\n        '/^CODEFO([A-Z]+)RCES$/',\n        '/^CODEFOR([A-Z]+)CES$/',\n        '/^CODEFORC([A-Z]+)ES$/',\n        '/^CODEFORCE([A-Z]+)S$/',\n        '/^CODEFORCES([A-Z]+)$/'\n    );\n    foreach($patterns as $pattern){\n        preg_match($pattern, $subject, $matches);\n        //print_r($matches);\n        if(count($matches)>0){\n            echo \"YES\";\n            exit();\n        }\n    }\n    echo \"NO\";\n    \n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "afe36482dd40963a72c66aa0e23f12ad", "src_uid": "bda4b15827c94b526643dfefc4bc36e7", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = ceil($b / $a);\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation"], "code_uid": "adda8a84ee645f4d7266d1a3e10c348e", "src_uid": "04c067326ec897091c3dbcf4d134df96", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//define('STDIN', fopen('input.txt', 'r'));\n\nfunction array_value_to_integer(&$arr) {\n\tforeach ($arr as &$value)\n\t\t$value = (int)$value;\n\tunset($value);\n\treturn $arr;\n}\n\n$arrInput = explode(' ', trim(fgets(STDIN)));\nlist($n, $s) = array_value_to_integer( $arrInput ); //n - макс. номинал монет, s - сумма, которую нужно набрать\n\n$divider = min($n, $s);\n$result = (int)ceil($s / $divider);\n\necho( $result );\n\nfclose(STDIN);\n\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation"], "code_uid": "1e50a6ec8a072db90eb7c8b50c9ead3d", "src_uid": "04c067326ec897091c3dbcf4d134df96", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n//$input = '14 28';\n$input = fgets(STDIN);\n$inputs = explode(' ', $input);\n$biggest = $inputs[0];\n$S = $inputs[1];\necho ceil($S / $biggest);\n", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation"], "code_uid": "1817035750cb976e15ad7d7b6b435929", "src_uid": "04c067326ec897091c3dbcf4d134df96", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "\n<?php\n\tfscanf(STDIN , \"%d\", $N);\n\t$S = trim(fgets(STDIN));\n\t$A = array();\n\t$ctr = 0;\n\tfor($i = 0 ;$i<$N;++$i)\n\t{\n\t\tif($S[$i]=='B')\n\t\t\t$ctr++;\n\t\telse\n\t\t{\n\t\t\tif($ctr)\n\t\t\t\t$A[]=$ctr;\n\t\t\t$ctr = 0 ;\n\t\t}\n\t}\n\n\tif($ctr)\n\t\t\t$A[]=$ctr;\n\t$ctr = 0 ;\n\techo count($A) . \"\\n\";\n\tforeach($A as $x)\n\t\techo $x . \" \";\n\n?>\n\n\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "3bebe99b930b29036f7d53e74de8121a", "src_uid": "e4b3a2707ba080b93a152f4e6e983973", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * Created by PhpStorm.\n * User: CodeCancer\n * Date: 2017/3/25\n * Time: 11:33\n */\nfscanf(STDIN,\"%d\",$N);\n$S = trim(fgets(STDIN));\n$A = array();\n$cnt = 0;\n$ans = 0;\nfor($i = 0;$i<$N;$i++)\n{\n    if($S[$i]=='B')\n    {\n        $cnt++;\n    }else\n    {\n        if($cnt!=0) {\n            $A[$ans] = $cnt;\n            $ans++;\n            $cnt=0;\n        }\n    }\n}\nif($cnt!=0)\n{\n    $A[$ans] = $cnt;\n    $ans++;\n    $cnt = 0;\n}\necho $ans . \"\\n\";\nfor($i=0;$i<$ans;$i++)\n{\n    echo $A[$i];\n    if($i==$ans-1) echo \"\\n\";\n    else echo \" \";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "64194f48fd0275bb2690e53d01cde3ae", "src_uid": "e4b3a2707ba080b93a152f4e6e983973", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\nsort($a);\necho $a[2]-$a[1] + $a[1] - $a[0];\n?>", "lang_cluster": "PHP", "tags": ["math", "sortings", "implementation"], "code_uid": "39952d86e389c2eb8253101d0f54b906", "src_uid": "7bffa6e8d2d21bbb3b7f4aec109b3319", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input=trim(fgets(STDIN));\n$ex= explode(\" \", $input);\nsort($ex);\n$min1=$ex[2] - $ex[1];\n$min2=$ex[1] - $ex[0];\necho $output=$min1 + $min2;\n?>", "lang_cluster": "PHP", "tags": ["math", "sortings", "implementation"], "code_uid": "347ef76d02bb4ce3738e73c76a161d8e", "src_uid": "7bffa6e8d2d21bbb3b7f4aec109b3319", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\nerror_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\n###### /IO ######\n\nfunction getAnswer($is_test = false, $f = false) {\n\t$stream = STDIN;\n\tif ($is_test)\n\t\t$stream = $f;\n\t/* begin body */\n\tlist($_x1, $_x2, $_x3) = readStringExplodeNum($stream, ' ', true);\n\t$x1 = min($_x1, $_x3, $_x2);\n\t$x3 = max($_x1, $_x3, $_x2);\n\t$x2 = ($_x1 + $_x2 + $_x3) - $x1 - $x3;\n\t$minRes = 9999;\n\tfor ($i = $x1; $i < $x3; $i++) {\n\t\t$pointRes = abs($x1 - $i) + abs($x2 - $i) + abs($x3 - $i);\n\t\tif ($pointRes < $minRes) {\n\t\t\t$minRes = $pointRes;\n\t\t}\n\t}\n\techo $minRes;\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["math", "sortings", "implementation"], "code_uid": "9889aafac8294d2b309208c11c719384", "src_uid": "7bffa6e8d2d21bbb3b7f4aec109b3319", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$input = explode(\" \",trim(fgets(STDIN)));\nsort($input);\n$two=$input[1];\n$x=0;\n$x += $two - $input[0];\n$x+=$input[2] - $two;\necho $x;\n\n\n", "lang_cluster": "PHP", "tags": ["math", "sortings", "implementation"], "code_uid": "e8ccd7c05242ddb28876a52ec9552cd2", "src_uid": "7bffa6e8d2d21bbb3b7f4aec109b3319", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\nerror_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\n###### /IO ######\n\nfunction getAnswer($is_test = false, $f = false) {\n\t$stream = STDIN;\n\tif ($is_test)\n\t\t$stream = $f;\n\t/* begin body */\n\t$arr = readStringExplodeNum($stream, ' ', true);\n\trsort($arr);\n  echo $arr[0] - $arr[2];\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["math", "sortings", "implementation"], "code_uid": "6dcf38a5e8c5eef236d79bf5df47f849", "src_uid": "7bffa6e8d2d21bbb3b7f4aec109b3319", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\t$i = 0 ;\n        $arr = explode(\" \", trim(fgets(STDIN)));\n\tsort($arr);\n\n\t$out = $arr[2] - $arr[0] ; \n\n\techo $out;\n?>\n", "lang_cluster": "PHP", "tags": ["math", "sortings", "implementation"], "code_uid": "7692ff9805b980efde5f40a61b6adb02", "src_uid": "7bffa6e8d2d21bbb3b7f4aec109b3319", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\nsort($a);\n$b = array();\n$c = 0;\nfor($x = $a[0]; $x <= $a[2]; $x++)\n{\n     $d = abs($a[0] - $x);\n     $e = abs($a[1] - $x);\n     $f = abs($a[2] - $x);\n     $g = $d + $e + $f;\n     $b[$c] = $g;\n     $c++;\n}\nprint min($b);\n?>", "lang_cluster": "PHP", "tags": ["math", "sortings", "implementation"], "code_uid": "5a2325e68890eae08a61296ca9562437", "src_uid": "7bffa6e8d2d21bbb3b7f4aec109b3319", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//$a = trim(fgets(STDIN));\nfscanf(STDIN, '%d%d%d', $a, $b, $c);\n\n$max = max($a, $b, $c);\n$min = min($a, $b, $c);\n\necho $max-$min;\n", "lang_cluster": "PHP", "tags": ["math", "sortings", "implementation"], "code_uid": "23e373fd4f7a19803ddf8dc4a205ad20", "src_uid": "7bffa6e8d2d21bbb3b7f4aec109b3319", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$v = explode(' ',trim(fgets(STDIN)));\nsort($v, SORT_NUMERIC);\n$ans = abs($v[0] - $v[1]) + abs($v[1] - $v[2]);\necho $ans . PHP_EOL;\nexit;", "lang_cluster": "PHP", "tags": ["math", "sortings", "implementation"], "code_uid": "f816467287fca6577592f5c3381ab39a", "src_uid": "7bffa6e8d2d21bbb3b7f4aec109b3319", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $in = fopen(\"php://stdin\",\"r\");\n    //$in = fopen(\"input.txt\",\"r\");\n    //$out = fopen(\"output.txt\",\"w\");\n    \n    $line = explode(\" \",fgets($in));\n    $n = (int)$line[0];\n    $m = (int)$line[1];\n    \n    \n    $max;\n    $min;\n    if ($n>$m) {\n        $max = $n;\n        $min = $m;\n    } else {\n        $max = $m;\n        $min = $n;\n    }\n    \n    echo ($max-1).\" \".($min);\n    //fclose($out);\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation", "games"], "code_uid": "d28f5810bc74ce14c5bf01c539f90748", "src_uid": "c8378e6fcaab30d15469a55419f38b39", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = strlen(substr(trim(fgets(STDIN)), 2));\n$b = strlen(substr(trim(fgets(STDIN)), 2));\n$c = strlen(substr(trim(fgets(STDIN)), 2));\n$d = strlen(substr(trim(fgets(STDIN)), 2));\n$e = 0;\nif(($a >= $b * 2) && ($a >= $c * 2) && ($a >= $d * 2))\n{\n    $e++;\n    $f = \"A\";\n}\nelseif(($a <= $b / 2) && ($a <= $c / 2) && ($a <= $d / 2))\n{\n    $e++;\n    $f = \"A\";\n}\nif(($b >= $a * 2) && ($b >= $c * 2) && ($b >= $d * 2))\n{\n    $e++;\n    $f = \"B\";\n}\nelseif(($b <= $a / 2) && ($b <= $c / 2) && ($b <= $d / 2))\n{\n    $e++;\n    $f = \"B\";\n}\nif(($c >= $a * 2) && ($c >= $b * 2) && ($c >= $d * 2))\n{\n    $e++;\n    $f = \"C\";\n}\nelseif(($c <= $a / 2) && ($c <= $b / 2) && ($c <= $d / 2))\n{\n    $e++;\n    $f = \"C\";\n}\nif(($d >= $a * 2) && ($d >= $b * 2) && ($d >= $c * 2))\n{\n    $e++;\n    $f = \"D\";\n}\nelseif(($d <= $a / 2) && ($d <= $b / 2) && ($d <= $c / 2))\n{\n    $e++;\n    $f = \"D\";\n}\nif(($e == 0) || ($e >= 2))\n{\n    print \"C\";\n}\nelse\n{\n    print $f;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0820c1e8b305ac08a8f68ca2189410f9", "src_uid": "30725e340dc07f552f0cce359af226a4", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = fopen('php://stdin', 'r');\n\n$A = strlen(rtrim(fgets($in)))-2;\n$B = strlen(rtrim(fgets($in)))-2;\n$C = strlen(rtrim(fgets($in)))-2;\n$D = strlen(rtrim(fgets($in)))-2;\n\n$nc=0;\n$ch=0;\nif($A >= $B*2 && $A >= $C*2 && $A >= $D*2){\n    $nc++;\n    $ch = \"A\";\n}\nif($B >= $A*2 && $B >= $C*2 && $B >= $D*2){\n    $nc++;\n    $ch = \"B\";\n}\nif($C >= $A*2 && $C >= $B*2 && $C >= $D*2){\n    $nc++;\n    $ch = \"C\";\n}\nif($D >= $A*2 && $D >= $B*2 && $D >= $C*2){\n    $nc++;\n    $ch = \"D\";\n}\n\nif($A <= $B/2 && $A <= $C/2 && $A <= $D/2){\n    $nc++;\n    $ch = \"A\";\n}\nif($B <= $A/2 && $B <= $C/2 && $B <= $D/2){\n    $nc++;\n    $ch = \"B\";\n}\nif($C <= $A/2 && $C <= $B/2 && $C <= $D/2){\n    $nc++;\n    $ch = \"C\";\n}\nif($D <= $A/2 && $D <= $B/2 && $D <= $C/2){\n    $nc++;\n    $ch = \"D\";\n}\n\nif($nc==1){\n    echo $ch;\n}\nelse{\n    echo \"C\";\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "95a19cddecb464ad3911be4c331d3eb2", "src_uid": "30725e340dc07f552f0cce359af226a4", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n,$a) = explode(\" \",trim(fgets(STDIN)));\n$j = $n;\n$step = 1;\nfor($i = 1; $i < $n;){\n    if($a == $j || $a == $i){\n        echo $step;\n    }\n    $i = $i+2;\n    $j = $j-2;\n    $step++;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "c20ee42ce2dde65cca4606ba8385f384", "src_uid": "aa62dcdc47d0abbba7956284c1561de8", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($count, $a) = explode(\" \", fgets(STDIN), 3);\n\nif ($a % 2 == 0) {\n    // четная сторона - убывание\n    $time = 1 + $count / 2 - floor($a / 2);\n} else {\n    // нечетная сторона - возрастание\n    $time = 1 + floor($a / 2);\n}\n\necho $time;", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "4a767406f4bb873efc650ae4f13cee8d", "src_uid": "aa62dcdc47d0abbba7956284c1561de8", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = $b % 2;\n$d = 1;\nif($c == 0)\n{\n     $d += ($a / 2) - ($b / 2);\n}\nelse\n{\n     $b--;\n     $d += ($b / 2);\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "e3ea5a35fa663f9b10500d8c5c9662a8", "src_uid": "aa62dcdc47d0abbba7956284c1561de8", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$inp = trim(fgets(STDIN));\n\n$inp = explode(\" \", $inp);\n\n$street1[1] = 1;\n$street2[1] = $inp[0];\n\nfor ($i=2; $i <= $inp[0]/2; $i++) {\n  $street1[$i] = $street1[$i-1] + 2;\n  $street2[$i] = $street2[$i-1] - 2;\n}\n\nif (($inp[1] % 2) != 0) {\n  $result = array_search($inp[1], $street1);\n} else {\n  $result = array_search($inp[1], $street2);\n}\n\necho $result;", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "81a32ed779b54700b510d8295ab67cf4", "src_uid": "aa62dcdc47d0abbba7956284c1561de8", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction getnum(&$c = null)\n{\n    for ($c = fgetc(STDIN); false !== strpos(\" \\t\\n\\r\\0\\x0B\", $c);$c = fgetc(STDIN));\n    $result = ''; do { if (!is_numeric($c) && $c !== '.') break; $result .= $c; } while (null !== $c = fgetc(STDIN));\n\n    return (float)$result;\n}\n\n$n = getnum();\n$a = getnum();\n\nif ($a % 2) {\n    echo (++$a / 2) .PHP_EOL;\n    return ;\n}\n\necho (($n - $a) / 2 + 1) . PHP_EOL;\n", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "69d6972e96812487892de6344a39d221", "src_uid": "aa62dcdc47d0abbba7956284c1561de8", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d %d\", $n, $a);\nif($a%2==1) echo ($a+1)/2;\nelse echo ($n-$a)/2+1;\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "ba9511466b5736c8eb146ce14e27ce99", "src_uid": "aa62dcdc47d0abbba7956284c1561de8", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(\"4\", \"7\");\n$c = array(\"44\", \"47\", \"74\", \"77\");\n$d = array(\"444\", \"447\", \"474\", \"477\", \"744\", \"747\", \"774\", \"777\");\n$e = array();\n$f = array();\n$g = array();\n$h = array();\n$i = array();\n$j = array();\nfor($x = 0; $x < 8; $x++)\n{\n    array_push($e, 4 . $d[$x]);\n    array_push($e, 7 . $d[$x]);\n}\nfor($x = 0; $x < 16; $x++)\n{\n    array_push($f, 4 . $e[$x]);\n    array_push($f, 7 . $e[$x]);\n}\nfor($x = 0; $x < 32; $x++)\n{\n    array_push($g, 4 . $f[$x]);\n    array_push($g, 7 . $f[$x]);\n}\nfor($x = 0; $x < 64; $x++)\n{\n    array_push($h, 4 . $g[$x]);\n    array_push($h, 7 . $g[$x]);\n}\nfor($x = 0; $x < 128; $x++)\n{\n    array_push($i, 4 . $h[$x]);\n    array_push($i, 7 . $h[$x]);\n}\nfor($x = 0; $x < 256; $x++)\n{\n    array_push($j, 4 . $i[$x]);\n    array_push($j, 7 . $i[$x]);\n}\n$k = array_merge($b, $c, $d, $e, $f, $g, $h, $i, $j);\nsort($k);\narray_unshift($k, \" \");\nunset($k[0]);\n$l = array_search($a, $k);\nprint $l;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "combinatorics", "bitmasks"], "code_uid": "ed50926faea5e9fc90b5aa30234dfc34", "src_uid": "6a10bfe8b3da9c11167e136b3c6fb2a3", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\nlist($e, $f) = explode(\" \", trim(fgets(STDIN)));\nif((($a == $c) && ($c == $e)) || (($b == $d) && ($d == $f)))\n{\n     print \"1\";\n}\nelseif((($a == $c) && ($d == $f)) || (($b == $d) && ($c == $e)))\n{\n     print \"2\";\n}\nelseif((($a == $e) && ($d == $f)) || (($b == $f) && ($c == $e)))\n{\n     print \"2\";\n}\nelseif((($a == $e) && ($b == $d)) || (($b == $f) && ($a == $c)))\n{\n     print \"2\";\n}\nelseif(($a == $c) && (($f >= max($b, $d)) || ($f <= min($b, $d))))\n{\n     print \"2\";\n}\nelseif(($c == $e) && (($b >= max($d, $f)) || ($b <= min($d, $f))))\n{\n     print \"2\";\n}\nelseif(($a == $e) && (($d >= max($b, $f)) || ($d <= min($b, $f))))\n{\n     print \"2\";\n}\nelseif(($b == $d) && (($e >= max($a, $c)) || ($e <= min($a, $c))))\n{\n     print \"2\";\n}\nelseif(($d == $f) && (($a >= max($c, $e)) || ($a <= min($c, $e))))\n{\n     print \"2\";\n}\nelseif(($b == $f) && (($c >= max($a, $e)) || ($c <= min($a, $e))))\n{\n     print \"2\";\n}\nelse\n{\n     print \"3\";\n}\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "7b8fe3997a506c004808b3633b2ed831", "src_uid": "36fe960550e59b046202b5811343590d", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction sameXxorY($a,$b,$c){\n    if($a == $b && $c == $a){\n        return TRUE;\n    }\n    return FALSE;\n}\n\nfunction judge(array $a ,array $b){\n    if($a[0] == $b[0] ){\n        return 2;\n    }\n    if($a[1] == $b[1]){\n        return 1;\n    }\n    return 0;\n}\n\n$aData = array();\nfor($i = 0; $i < 3;$i++){\n    $sLine = trim(fgets(STDIN));\n    $aData[] = explode(' ',$sLine);\n}\n\nif(sameXxorY($aData[0][0],$aData[1][0],$aData[2][0]) ||sameXxorY($aData[0][1],$aData[1][1],$aData[2][1]) ){\n    echo 1;\n    exit;\n}\n\nfor($i = 0; $i < 3;$i++){\n    for($j = $i + 1; $j < 3; $j++){\n        $t = judge($aData[$i],$aData[$j]);\n        if( $t != 0){\n            $t = $t-1;\n            $k = 3 - $i - $j ;\n            if($aData[$k][$t] <= min($aData[$i][$t] , $aData[$j][$t]) || $aData[$k][$t] >= max($aData[$i][$t],$aData[$j][$t])){\n                echo 2;\n                exit;\n            }\n\n        }\n    }\n}\n\necho 3;\n#var_dump($aData);\n", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "c5c957d3864ded4ddfdd7b75f1fde555", "src_uid": "36fe960550e59b046202b5811343590d", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = abs(trim(fgets(STDIN)));\n$b = 0;\n$c = 1;\nif($a == 0)\n{\n    print \"0\";\n}\nelse\n{\n    for($x = 1; $x <= $a + 1; $x++)\n    {\n        $b = $b + $c;\n        if($b == $a)\n        {\n            print $x;\n            break;\n        }\n        elseif((($b - $a) % 2 == 0) && ($b > $a))\n        {\n            print $x;\n            break;\n        }\n        $c++;\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "c068b55f8905da384ffb19083ad27f73", "src_uid": "18644c9df41b9960594fdca27f1d2fec", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $input = (int)file_get_contents(\"php://stdin\");\n    $i=0;\n    $input=abs($input);\n    $step=0;\n    while(1)\n    {\n        $i+=$step;\n        if($i%2==$input%2 && $input<=$i)\n        {\n            echo($step);\n            break;\n        }\n        $step++;        \n    }\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "34967871f6d3b77aeb041780bdc9a448", "src_uid": "18644c9df41b9960594fdca27f1d2fec", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = $a * $c;\n$e = $b * $c;\n$f = $d - $e;\nfor($x = $b; $x < $d; $x = $x + $b)\n{\n    if($x >= $f)\n    {\n        break;\n    }\n}\nprint $x / $b;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "binary search"], "code_uid": "44f68db9f4c1d4d7db80af68254242c1", "src_uid": "7dd098ec3ad5b29ad681787173eba341", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(' ',trim(fgets(STDIN)));\n\n$r = ceil(($a * $c) / $b) - $c;\nif($r < 0) print '0'; else print $r;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "binary search"], "code_uid": "67af2137ac6b124058b6398ebdac0b02", "src_uid": "7dd098ec3ad5b29ad681787173eba341", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nini_set('error_reporting', E_ALL & ~E_NOTICE);\n\nfscanf(STDIN, \"%d%d\", $n, $k);\n$answer = 0;\n$answer += ceil($n * 2 / $k);\n$answer += ceil($n * 5 / $k);\n$answer += ceil($n * 8 / $k);\n\necho $answer;\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "99227c50a0b9bc7daa9a04d308ff69ec", "src_uid": "d259a3a5c38af34b2a15d61157cc0a39", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $k) = explode(' ', readline());\necho ceil(($n*8)/$k) + ceil(($n*5)/$k) + ceil(($n*2)/$k);", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "4adbd0e265538141fbe22d61d258c700", "src_uid": "d259a3a5c38af34b2a15d61157cc0a39", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = ceil($a * 2 / $b);\n$d = ceil($a * 5 / $b);\n$e = ceil($a * 8 / $b);\n$f = $c + $d + $e;\nprintf(\"%.0f\", $f);\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "a4e4c3dfe0f4d74e86497457935c848f", "src_uid": "d259a3a5c38af34b2a15d61157cc0a39", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$r = 2; $g = 5; $b = 8;\n\n$nk = readline();\n$nk = explode(' ', $nk);\n$r = $r * $nk[0];\n$g = $g * $nk[0];\n$b = $b * $nk[0];\n\n$s = ceil($r/$nk[1]) + ceil($g/$nk[1]) + ceil($b/$nk[1]);\n\n\necho $s;\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "9b453da77d9f6084ff649ee998469358", "src_uid": "d259a3a5c38af34b2a15d61157cc0a39", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = 0;\nfor($x = 0; $x < $a - 1; $x++)\n{\n     if(($b[$x] == \"U\") && ($b[$x + 1] == \"R\"))\n     {\n          $c++;\n          $x++;\n     }\n     elseif(($b[$x] == \"R\") && ($b[$x + 1] == \"U\"))\n     {\n          $c++;\n          $x++;\n     }\n}\n$d = $a - $c;\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ec47c1999d29e7b7c1fda4e57cc328aa", "src_uid": "986ae418ce82435badadb0bd5588f45b", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\n$d = 0;\nfor($x = 0; $x < $a; $x++)\n{\n     if($b[$x] == 0)\n     {\n          $c++;\n     }\n     else\n     {\n          $d++;\n     }\n}\nfor($x = 0; $x < $a; $x++)\n{\n     if($b[$x] == 1)\n     {\n          array_splice($b, 0, 1);\n          if(count($b) == 0)\n          {\n               break;\n          }\n          else\n          {\n               $x--;\n          }\n     }\n     else\n     {\n          break;\n     }\n}\n$b = array_reverse($b);\nfor($x = 0; $x < $a; $x++)\n{\n     if($b[$x] == 0)\n     {\n          array_splice($b, 0, 1);\n          if(count($b) == 0)\n          {\n               break;\n          }\n          else\n          {\n               $x--;\n          }\n     }\n     else\n     {\n          break;\n     }\n}\n$b = array_reverse($b);\n$e = 0;\n$f = 0;\nfor($x = 0; $x < count($b); $x++)\n{\n     if($b[$x] == 0)\n     {\n          $f++;\n     }\n     else\n     {\n          $f--;\n     }\n     if($f >= $e)\n     {\n          $i = $x;\n     }\n     $e = max($e, $f);\n}\n$b2 = $b;\n$b2 = array_reverse($b2);\n$g = 0;\n$h = 0;\nfor($x = 0; $x < count($b2); $x++)\n{\n     if($b2[$x] == 1)\n     {\n          $h++;\n     }\n     else\n     {\n          $h--;\n     }\n     if($h >= $g)\n     {\n          $j = $x;\n     }\n     $g = max($g, $h);\n}\nif($e >= $g)\n{\n     $k = array_slice($b, 0, $i + 1);\n     $l = array_slice($b, $i + 1);\n     for($x = 0; $x < count($k); $x++)\n     {\n          if($k[$x] == 1)\n          {\n               array_splice($k, 0, 1);\n               $x--;\n          }\n     }\n     for($x = 0; $x < count($l); $x++)\n     {\n          if($l[$x] == 0)\n          {\n               array_splice($l, 0, 1);\n               $x--;\n          }\n     }\n     $m = array_merge($k, $l);\n     $n = count($m);\n     print max($c, $d, $n);\n}\nelse\n{\n     $k = array_slice($b2, 0, $j + 1);\n     $l = array_slice($b2, $j + 1);\n     for($x = 0; $x < count($k); $x++)\n     {\n          if($k[$x] == 1)\n          {\n               array_splice($k, 0, 1);\n               $x--;\n          }\n     }\n     for($x = 0; $x < count($l); $x++)\n     {\n          if($l[$x] == 0)\n          {\n               array_splice($l, 0, 1);\n               $x--;\n          }\n     }\n     $m = array_merge($k, $l);\n     $n = count($m);\n     print max($c, $d, $n);\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "6f2b858f382543fac5c50b32c185c76a", "src_uid": "c7b1f0b40e310f99936d1c33e4816b95", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\n\n$n = array();\nfor($i=0;$i<=9;$i++){\n $n = trim(fgets(STDIN));\n $a[$n] = $i;\n}\n\nprint strtr($s, $a);\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "bf9a9846225a1cac1e5b175526fed037", "src_uid": "0f4f7ca388dd1b2192436c67f9ac74d9", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nwhile (FALSE !== ($passwordLine = fgets(STDIN))) {\n    $hash = array();    \n    for($i = 0; $i < 10; $i ++){\n        $line = trim(fgets(STDIN));\n        $hash [$line] = $i;  // ;)\n    }\n    for($j = 0; $j < 8; $j++){  \n        echo $hash[substr($passwordLine, $j * 10, 10)];\n    }\n    echo PHP_EOL;\n}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "bcff8e85412fddf3b3eaaedf1dc3b09d", "src_uid": "0f4f7ca388dd1b2192436c67f9ac74d9", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = trim(fgets(STDIN));\n$e = trim(fgets(STDIN));\n$f = trim(fgets(STDIN));\n$g = trim(fgets(STDIN));\n$h = trim(fgets(STDIN));\n$i = trim(fgets(STDIN));\n$j = trim(fgets(STDIN));\n$k = trim(fgets(STDIN));\n$l = array($b, $c, $d, $e, $f, $g, $h, $i, $j, $k);\n$n = 0;\n$o = \"\";\nfor($x = 0; $x < 8; $x++)\n{\n    \n    $m = substr($a, $n, 10);\n    for($y = 0; $y < 10; $y++)\n    {\n        if($m == $l[$y])\n        {\n            $o .= $y;\n        }\n    }\n    $n += 10;\n}\nprint $o;\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "b682a8952d0b19c0c1894d5c102940e3", "src_uid": "0f4f7ca388dd1b2192436c67f9ac74d9", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\n\n$n = array();\nfor($i=0;$i<=9;$i++){\n $n = trim(fgets(STDIN));\n $a[$n] = $i;\n}\n\nprint strtr($s, $a);\n\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "edf955facabd66f52ce13ad9d8a6783c", "src_uid": "0f4f7ca388dd1b2192436c67f9ac74d9", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "#!/usr/bin/env php\n<?php\n$count = trim(fgets(STDIN));\n\n$line = trim(fgets(STDIN));\n$array = array_map('intval', explode(' ', $line));\n\nfor(;;) {\n\trsort($array);\n\tif ($array[0] !== $array[$count - 1] && $array[1] !== 0) {\n\t\t$sub = $array[1];\n\t\tfor ($i = 1; $i < $count; $i++) {\n\t\t\tif ($array[$i] !== $array[0]) {\n\t\t\t\t$sub = $array[$i];\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t\t$array[0] = $array[0] - $sub;\n\t} else {\n\t\techo array_sum($array);exit();\n\t}\n}\n", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "0782f60644c71bf0457de509ea530326", "src_uid": "042cf938dc4a0f46ff33d47b97dc6ad4", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nrsort($b);\nfor($x = 1; $x <= 10000; $x++)\n{\n    if($b[0] > $b[count($b) - 1])\n    {\n        $b[0] = $b[0] - $b[count($b) - 1];\n        rsort($b);\n    }\n    else\n    {\n        break;\n    }\n}\nprint array_sum($b);\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "88c0862e879c9ac87134fae8cf9c36cd", "src_uid": "042cf938dc4a0f46ff33d47b97dc6ad4", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$a2 = $a % 4;\n$a3 = $a % 100;\n$a4 = $a % 400;\n$b = 7;\nif(($a4 == 0) || (($a2 == 0) && ($a3 != 0)))\n{\n     $b += 2;\n     $a++;\n     while(TRUE)\n     {\n          $c = $a % 4;\n          $d = $a % 100;\n          $e = $a % 400;\n          $f = $b % 7;\n          if(($e == 0) || (($c == 0) && ($d != 0)))\n          {\n               if($f == 0)\n               {\n                    break;\n               }\n               else\n               {\n                    $b += 2;\n                    $a++;\n               }\n          }\n          else\n          {\n               $b++;\n               $a++;\n          }\n     }\n     print $a;\n}\nelse\n{\n     $b++;\n     $a++;\n     while(TRUE)\n     {\n          $c = $a % 4;\n          $d = $a % 100;\n          $e = $a % 400;\n          $f = $b % 7;\n          if(($e == 0) || (($c == 0) && ($d != 0)))\n          {\n               $b += 2;\n               $a++;\n          }\n          else\n          {\n               if($f == 0)\n               {\n                    break;\n               }\n               else\n               {\n                    $b++;\n                    $a++;\n               }\n          }\n     }\n     print $a;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7fd0720c19be9c413a41c48266febe65", "src_uid": "565bbd09f79eb7bfe2f2da46647af0f2", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\t$ALPH = array('A'=>1, 'B'=>2, 'C'=>3, 'D'=>4, 'E'=>5, 'F'=>6, 'G'=>7, 'H'=>8, 'I'=>9, 'J'=>10, 'K'=>11, 'L'=>12, 'M'=>13, 'N'=>14, 'O'=>15, 'P'=>16, 'Q'=>17, 'R'=>18, 'S'=>19, 'T'=>20, 'U'=>21, 'V'=>22, 'W'=>23, 'X'=>24, 'Y'=>25, 'Z'=>26);\n\t$n = trim(fgets(STDIN));\n\t//ACTG\n\t$s = trim(fgets(STDIN));\n\t\n\t$a = str_split($s);\n\t$c = 0; $c_min = PHP_INT_MAX;\n\tfor($i=0; $i<$n-3; $i++){\n\t\t$c += min(26-abs($ALPH[$a[$i]] - $ALPH['A']), abs($ALPH[$a[$i]] - $ALPH['A']));\n\t\t$c += min(26-abs($ALPH[$a[$i+1]] - $ALPH['C']),abs($ALPH[$a[$i+1]] - $ALPH['C']));\n\t\t$c += min(26-abs($ALPH[$a[$i+2]] - $ALPH['T']),abs($ALPH[$a[$i+2]] - $ALPH['T']));\n\t\t$c += min(26-abs($ALPH[$a[$i+3]] - $ALPH['G']),abs($ALPH[$a[$i+3]] - $ALPH['G']));\n\t\t\n\t\t//echo $a[$i].$a[$i+1].$a[$i+2].$a[$i+3].\"\\n\";\n\t\t\n\t\tif($c <= $c_min){\n\t\t\t$c_min = $c;\n\t\t}\n\t\t$c = 0;\n\t}\n\t\n\techo $c_min;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings"], "code_uid": "a0877bf7a61c9301b9192767e3d364c3", "src_uid": "ee4f88abe4c9fa776abd15c5f3a94543", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $ARR = array('A'=>1, 'B'=>2, 'C'=>3, 'D'=>4, 'E'=>5, 'F'=>6, 'G'=>7, 'H'=>8, 'I'=>9, 'J'=>10, 'K'=>11, 'L'=>12, 'M'=>13, 'N'=>14, 'O'=>15, 'P'=>16, 'Q'=>17, 'R'=>18, 'S'=>19, 'T'=>20, 'U'=>21, 'V'=>22, 'W'=>23, 'X'=>24, 'Y'=>25, 'Z'=>26);\n    $n = trim(fgets(STDIN));\n    $str = str_split(trim(fgets(STDIN)));\n    function find($x, $y,$ARR){\n\tif ($x > $y){\n\t    $temp=$x;\n\t    $x=$y;\n\t    $y=$temp;\n\t}\n\t$j = $ARR[$y]-$ARR[$x];\n\tif ($j>13) $j=26-$j;\n\treturn $j;\n    }\n    $ans = 2e9;\n\tfor ($i = 0; $i < $n-3; $i++)\n\t\t$ans = min($ans, find($str[$i], 'A',$ARR) + find($str[$i+1], 'C',$ARR) + find($str[$i+2], 'T',$ARR) + find($str[$i+3], 'G',$ARR));\n\techo $ans;\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "strings"], "code_uid": "6ac479a371fff054b9f7773315a57347", "src_uid": "ee4f88abe4c9fa776abd15c5f3a94543", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d\",$n);\nfscanf(STDIN,\"%s\",$str);\n$alpha=\"ABCDEFGHIJKLMNOPQRSTUVWXYZ\";\n$split=str_split($alpha);\nfor ($i=0; $i <strlen($str)-3 ; $i++)\n{ \n\t$str1=substr($str,$i,4);\n        \n\t\tif(implode(',',array_keys($split,$str1[0]))>13)\n\t\t\n\t\t\t$g1=abs(implode(',',array_keys($split,$str1[0]))-26);\n\t\t\t//echo \"$g1\\n\";\n\t\t\n\t\telse\n\t\t\t$g1=implode(',',array_keys($split,$str1[0]));\n\n\t\tif(implode(',',array_keys($split,$str1[1]))>15)\n\t\t\t$g2=abs(implode(',',array_keys($split,$str1[1]))-28);\n\t\telse\n\t\t\n\t\t\t$g2=abs(implode(',',array_keys($split,$str1[1]))-2);\n\t\t\t//echo \"$g2\\n\";\n\t\t\n\n\t\tif(implode(',',array_keys($split,$str1[2]))<6)\n\t\t\t$g3=abs(implode(',',array_keys($split,$str1[2]))+7);\n\t\telse\n\t\t\t$g3=abs(19-implode(',',array_keys($split,$str1[2])));\n\n\t\tif(implode(',',array_keys($split,$str1[3]))>19)\n\t\t\t$g4=abs(32-implode(',',array_keys($split,$str1[3])));\n\t\telse\n\t\t\t$g4=abs(implode(',',array_keys($split,$str1[3]))-6);\n\t\t$count[$i]=$g1+$g2+$g3+$g4;\n\n\n\t\t\t\n\n\n\t\n\t\n}\necho min($count);\n\n", "lang_cluster": "PHP", "tags": ["brute force", "strings"], "code_uid": "c0162d00cb9f2e7a3b3d1f34e2fcdc00", "src_uid": "ee4f88abe4c9fa776abd15c5f3a94543", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($r, $c, $n, $k) = explode(\" \", trim(fgets(STDIN)));\n$arr = array_fill(0, $r, array_fill(0, $c, 7));\nfor ($i = 0; $i < $n; $i++) {\n\n\tlist($q, $w) = explode(\" \", trim(fgets(STDIN)));\n\t$arr[$q-1][$w-1] = 1;\n}\n\n$photos = 0;\n\nfor ($i1 = 0; $i1 < $r; $i1++) {\n\tfor ($j1 = 0; $j1 < $c; $j1++) {\n\t\tfor ($a = 1; $a <= ($r - $i1); $a++) {\n\t\t\tfor ($b = 1; $b <= ($c - $j1); $b++) {\n\t\t\t\t$cnt = 0;\n\t\t\t\tfor ($i = $i1; $i <= ($i1+$a-1); $i++) {\n\t\t\t\t\tfor ($j = $j1; $j <= ($j1+$b-1); $j++){\n\t\t\t\t\t\tif ($arr[$i][$j] == 1) $cnt++;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif ($cnt >= $k) $photos++;\n\t\t\t}\n\t\t}\t\t\n\t}\n}\n\nprint $photos;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "39699347c7bb0d7a62ef20ff20875bc6", "src_uid": "9c766881f6415e2f53fb43b61f8f40b4", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = array();\nfor($x = 0; $x < $a; $x++)\n{\n     $f = array_fill(0, $b, 0);\n     $e[$x] = $f;\n}\nfor($x = 0; $x < $c; $x++)\n{\n     list($g, $h) = explode(\" \", trim(fgets(STDIN)));\n     $e[$g - 1][$h - 1] = 1;\n}\n$i = array();\nfor($x = 0; $x < $b; $x++)\n{\n     $j = array_fill(0, $a, 0);\n     $i[$x] = $j;\n}\nfor($x = 0; $x < $a; $x++)\n{\n     $k = $e[$x];\n     $k = array_reverse($k);\n     for($y = $x; $y < $x + 1; $y++)\n     {\n          for($z = 0; $z < count($k); $z++)\n          {\n               $i[$z][$y] = $k[$z];\n          }\n     }\n}\n$l = 0;\nfor($m = 1; $m <= 10; $m++)\n{\n     for($n = 0; $n < $a; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $r = array_sum(array_slice($p, $o, $m));\n               if($r >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 2; $m <= 10; $m++)\n{\n     for($n = 0; $n < $a - 1; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               if($r + $r2 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 3; $m <= 10; $m++)\n{\n     for($n = 0; $n < $a - 2; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               if($r + $r2 + $r3 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 4; $m <= 10; $m++)\n{\n     for($n = 0; $n < $a - 3; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               if($r + $r2 + $r3 + $r4 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 5; $m <= 10; $m++)\n{\n     for($n = 0; $n < $a - 4; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 6; $m <= 10; $m++)\n{\n     for($n = 0; $n < $a - 5; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $p6 = $e[$n + 5];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 7; $m <= 10; $m++)\n{\n     for($n = 0; $n < $a - 6; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $p6 = $e[$n + 5];\n               $p7 = $e[$n + 6];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 8; $m <= 10; $m++)\n{\n     for($n = 0; $n < $a - 7; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $p6 = $e[$n + 5];\n               $p7 = $e[$n + 6];\n               $p8 = $e[$n + 7];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               $r8 = array_sum(array_slice($p8, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 + $r8 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 9; $m <= 10; $m++)\n{\n     for($n = 0; $n < $a - 8; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $p6 = $e[$n + 5];\n               $p7 = $e[$n + 6];\n               $p8 = $e[$n + 7];\n               $p9 = $e[$n + 8];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               $r8 = array_sum(array_slice($p8, $o, $m));\n               $r9 = array_sum(array_slice($p9, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 + $r8 + $r9 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 10; $m <= 10; $m++)\n{\n     for($n = 0; $n < $a - 9; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $p6 = $e[$n + 5];\n               $p7 = $e[$n + 6];\n               $p8 = $e[$n + 7];\n               $p9 = $e[$n + 8];\n               $p10 = $e[$n + 9];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               $r8 = array_sum(array_slice($p8, $o, $m));\n               $r9 = array_sum(array_slice($p9, $o, $m));\n               $r10 = array_sum(array_slice($p10, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 + $r8 + $r9 + $r10 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 1; $m <= 10; $m++)\n{\n     for($n = 0; $n < $b; $n++)\n     {\n          for($o = 0; $o <= $a - $m; $o++)\n          {\n               $p = $i[$n];\n               $r = array_sum(array_slice($p, $o, $m));\n               if($r >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 2; $m <= 10; $m++)\n{\n     for($n = 0; $n < $b - 1; $n++)\n     {\n          for($o = 0; $o <= $a - $m; $o++)\n          {\n               $p = $i[$n];\n               $p2 = $i[$n + 1];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               if($r + $r2 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 3; $m <= 10; $m++)\n{\n     for($n = 0; $n < $b - 2; $n++)\n     {\n          for($o = 0; $o <= $a - $m; $o++)\n          {\n               $p = $i[$n];\n               $p2 = $i[$n + 1];\n               $p3 = $i[$n + 2];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               if($r + $r2 + $r3 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 4; $m <= 10; $m++)\n{\n     for($n = 0; $n < $b - 3; $n++)\n     {\n          for($o = 0; $o <= $a - $m; $o++)\n          {\n               $p = $i[$n];\n               $p2 = $i[$n + 1];\n               $p3 = $i[$n + 2];\n               $p4 = $i[$n + 3];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               if($r + $r2 + $r3 + $r4 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 5; $m <= 10; $m++)\n{\n     for($n = 0; $n < $b - 4; $n++)\n     {\n          for($o = 0; $o <= $a - $m; $o++)\n          {\n               $p = $i[$n];\n               $p2 = $i[$n + 1];\n               $p3 = $i[$n + 2];\n               $p4 = $i[$n + 3];\n               $p5 = $i[$n + 4];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 6; $m <= 10; $m++)\n{\n     for($n = 0; $n < $b - 5; $n++)\n     {\n          for($o = 0; $o <= $a - $m; $o++)\n          {\n               $p = $i[$n];\n               $p2 = $i[$n + 1];\n               $p3 = $i[$n + 2];\n               $p4 = $i[$n + 3];\n               $p5 = $i[$n + 4];\n               $p6 = $i[$n + 5];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 7; $m <= 10; $m++)\n{\n     for($n = 0; $n < $b - 6; $n++)\n     {\n          for($o = 0; $o <= $a - $m; $o++)\n          {\n               $p = $i[$n];\n               $p2 = $i[$n + 1];\n               $p3 = $i[$n + 2];\n               $p4 = $i[$n + 3];\n               $p5 = $i[$n + 4];\n               $p6 = $i[$n + 5];\n               $p7 = $i[$n + 6];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 8; $m <= 10; $m++)\n{\n     for($n = 0; $n < $b - 7; $n++)\n     {\n          for($o = 0; $o <= $a - $m; $o++)\n          {\n               $p = $i[$n];\n               $p2 = $i[$n + 1];\n               $p3 = $i[$n + 2];\n               $p4 = $i[$n + 3];\n               $p5 = $i[$n + 4];\n               $p6 = $i[$n + 5];\n               $p7 = $i[$n + 6];\n               $p8 = $i[$n + 7];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               $r8 = array_sum(array_slice($p8, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 + $r8 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 9; $m <= 10; $m++)\n{\n     for($n = 0; $n < $b - 8; $n++)\n     {\n          for($o = 0; $o <= $a - $m; $o++)\n          {\n               $p = $i[$n];\n               $p2 = $i[$n + 1];\n               $p3 = $i[$n + 2];\n               $p4 = $i[$n + 3];\n               $p5 = $i[$n + 4];\n               $p6 = $i[$n + 5];\n               $p7 = $i[$n + 6];\n               $p8 = $i[$n + 7];\n               $p9 = $i[$n + 8];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               $r8 = array_sum(array_slice($p8, $o, $m));\n               $r9 = array_sum(array_slice($p9, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 + $r8 + $r9 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 10; $m <= 10; $m++)\n{\n     for($n = 0; $n < $b - 9; $n++)\n     {\n          for($o = 0; $o <= $a - $m; $o++)\n          {\n               $p = $i[$n];\n               $p2 = $i[$n + 1];\n               $p3 = $i[$n + 2];\n               $p4 = $i[$n + 3];\n               $p5 = $i[$n + 4];\n               $p6 = $i[$n + 5];\n               $p7 = $i[$n + 6];\n               $p8 = $i[$n + 7];\n               $p9 = $i[$n + 8];\n               $p10 = $i[$n + 9];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               $r8 = array_sum(array_slice($p8, $o, $m));\n               $r9 = array_sum(array_slice($p9, $o, $m));\n               $r10 = array_sum(array_slice($p10, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 + $r8 + $r9 + $r10 >= $d)\n               {\n                    $l += 1;\n               }\n          }\n     }\n}\nfor($m = 1; $m <= 1; $m++)\n{\n     for($n = 0; $n < $a; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $r = array_sum(array_slice($p, $o, $m));\n               if($r >= $d)\n               {\n                    $l -= 1;\n               }\n          }\n     }\n}\nfor($m = 2; $m <= 2; $m++)\n{\n     for($n = 0; $n < $a - 1; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               if($r + $r2 >= $d)\n               {\n                    $l -= 1;\n               }\n          }\n     }\n}\nfor($m = 3; $m <= 3; $m++)\n{\n     for($n = 0; $n < $a - 2; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               if($r + $r2 + $r3 >= $d)\n               {\n                    $l -= 1;\n               }\n          }\n     }\n}\nfor($m = 4; $m <= 4; $m++)\n{\n     for($n = 0; $n < $a - 3; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               if($r + $r2 + $r3 + $r4 >= $d)\n               {\n                    $l -= 1;\n               }\n          }\n     }\n}\nfor($m = 5; $m <= 5; $m++)\n{\n     for($n = 0; $n < $a - 4; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 >= $d)\n               {\n                    $l -= 1;\n               }\n          }\n     }\n}\nfor($m = 6; $m <= 6; $m++)\n{\n     for($n = 0; $n < $a - 5; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $p6 = $e[$n + 5];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 >= $d)\n               {\n                    $l -= 1;\n               }\n          }\n     }\n}\nfor($m = 7; $m <= 7; $m++)\n{\n     for($n = 0; $n < $a - 6; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $p6 = $e[$n + 5];\n               $p7 = $e[$n + 6];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 >= $d)\n               {\n                    $l -= 1;\n               }\n          }\n     }\n}\nfor($m = 8; $m <= 8; $m++)\n{\n     for($n = 0; $n < $a - 7; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $p6 = $e[$n + 5];\n               $p7 = $e[$n + 6];\n               $p8 = $e[$n + 7];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               $r8 = array_sum(array_slice($p8, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 + $r8 >= $d)\n               {\n                    $l -= 1;\n               }\n          }\n     }\n}\nfor($m = 9; $m <= 9; $m++)\n{\n     for($n = 0; $n < $a - 8; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $p6 = $e[$n + 5];\n               $p7 = $e[$n + 6];\n               $p8 = $e[$n + 7];\n               $p9 = $e[$n + 8];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               $r8 = array_sum(array_slice($p8, $o, $m));\n               $r9 = array_sum(array_slice($p9, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 + $r8 + $r9 >= $d)\n               {\n                    $l -= 1;\n               }\n          }\n     }\n}\nfor($m = 10; $m <= 10; $m++)\n{\n     for($n = 0; $n < $a - 9; $n++)\n     {\n          for($o = 0; $o <= $b - $m; $o++)\n          {\n               $p = $e[$n];\n               $p2 = $e[$n + 1];\n               $p3 = $e[$n + 2];\n               $p4 = $e[$n + 3];\n               $p5 = $e[$n + 4];\n               $p6 = $e[$n + 5];\n               $p7 = $e[$n + 6];\n               $p8 = $e[$n + 7];\n               $p9 = $e[$n + 8];\n               $p10 = $e[$n + 9];\n               $r = array_sum(array_slice($p, $o, $m));\n               $r2 = array_sum(array_slice($p2, $o, $m));\n               $r3 = array_sum(array_slice($p3, $o, $m));\n               $r4 = array_sum(array_slice($p4, $o, $m));\n               $r5 = array_sum(array_slice($p5, $o, $m));\n               $r6 = array_sum(array_slice($p6, $o, $m));\n               $r7 = array_sum(array_slice($p7, $o, $m));\n               $r8 = array_sum(array_slice($p8, $o, $m));\n               $r9 = array_sum(array_slice($p9, $o, $m));\n               $r10 = array_sum(array_slice($p10, $o, $m));\n               if($r + $r2 + $r3 + $r4 + $r5 + $r6 + $r7 + $r8 + $r9 + $r10 >= $d)\n               {\n                    $l -= 1;\n               }\n          }\n     }\n}\nprint $l;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "13df18aadf8a255549a6de6a26aed0ba", "src_uid": "9c766881f6415e2f53fb43b61f8f40b4", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\\n\", $line1);\n$line2 = trim(fgets(STDIN));\n$count = strlen($line2);\nif ($line1 == $count and !empty($line1) and !empty($line2)) {\n    $arr = str_split($line2);\n    foreach ($arr as $vl) {\n        if ($vl != 'D' and $vl != 'U' and $vl != 'R' and $vl != 'L'){\n            echo '-1';\n            exit();\n        }\n    }\n    $x = 0;\n    $y = 0;\n    for ($i = 0; $i <= $line1; $i++) {\n    switch (current($arr)) {\n\tcase 'L':\n\t\t--$x;\n\t\tbreak;\n\t\t\n\tcase 'R':\n\t\t++$x;\n\t\tbreak;\n\t\t\n\tcase 'U':\n\t\t++$y;\n\t\tbreak;\n\t\t\n\tcase 'D':\n\t\t--$y;\n\t\tbreak;\n    }\n    next($arr);\n    }\n    $res = $line1 - abs($x) - abs($y);\n    echo $res;\n}else{\n    echo '-1';\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "57a6cb6e60705348c8307b5dbc3cabcd", "src_uid": "b9fa2bb8001bd064ede531a5281cfd8a", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN));\n    $a = str_split(trim(fgets(STDIN)));\n    $i = 0;\n    foreach ($a AS $v) {\n        if ($v == '+') {\n            $i++;\n        } elseif ($i > 0) {\n            $i--;\n        }\n    }\n    echo $i;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "d08fc0bf2761ee308623e09e3de4888b", "src_uid": "a593016e4992f695be7c7cd3c920d1ed", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = min($a, $b, $c, $d);\n$a += $e;\n$b += $e;\n$c += $e;\n$d += $e;\nif($a == $c)\n{\n     $f = (max($a, $c) - min($a, $c) + 2) * 2;\n}\nelse\n{\n     $f = (max($a, $c) - min($a, $c) + 1) * 2;\n}\nif($b == $d)\n{\n     $g = (max($b, $d) - min($b, $d) + 2) * 2;\n}\nelse\n{\n     $g = (max($b, $d) - min($b, $d) + 1) * 2;\n}\nprint $f + $g;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "60f047c05fb0bad09f0c95aaeaa25f04", "src_uid": "f54ce13fb92e51ebd5e82ffbdd1acbed", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = array();\nfor($x = 0; $x < $a; $x++)\n{\n     $d[$c[$x]][$x + 1] = $x + 1;\n}\n$e = 0;\n$f = array();\n$g = array();\nfor($x = 0; $x < $a; $x++)\n{\n     $h = $c[$x];\n     if($f[$h] == TRUE)\n     {\n          $i = $d[$h];\n          $j = current($i);\n          $j = next($i);\n          if($j == NULL)\n          {\n               $i = $d[$h];\n               $j = current($i);\n               unset($f[$g[$j]]);\n               unset($g[$j]);\n               unset($d[$h][$j]);\n          }\n          else\n          {\n               $f[$h] = $j;\n               $g[$j] = $h;\n               $j = prev($i);\n               unset($d[$h][$j]);\n          }\n     }\n     elseif(count($f) < $b)\n     {\n          $e++;\n          $i = $d[$h];\n          $j = current($i);\n          $j = next($i);\n          if($j != NULL)\n          {\n               $f[$h] = $j;\n               $g[$j] = $h;\n          }\n          $j = prev($i);\n          unset($d[$h][$j]);\n     }\n     else\n     {\n          $e++;\n          $i = max($f);\n          $j = $g[$i];\n          unset($f[$g[$i]]);\n          unset($g[$i]);\n          $k = $d[$h];\n          $l = current($k);\n          $l = next($k);\n          if($l != NULL)\n          {\n               $f[$h] = $l;\n               $g[$l] = $h;\n          }\n          $l = prev($k);\n          unset($d[$h][$l]);\n     }\n}\nprint $e;\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "ff2b5f5fa977465e76754f40e63fccb1", "src_uid": "956228e31679caa9952b216e010f9773", "difficulty": 1800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$in = 'php://stdin';\n\t//$in = 'inputB.txt';\n\n\t$input = fopen($in, \"r\");\n\n    for($i=0;$i<5;$i++) {\n    \t$g[] = explode(\" \", trim(fgets($input)));\n    }\n\n    $pos = Array('01234', '01243', '01324', '01342', '01423', '01432', '02134', '02143', '02314', '02341', '02413', '02431', '03124', '03142', '03214', '03241', '03412', '03421', '04123', '04132', '04213', '04231', '04312', '04321', '10234', '10243', '10324', '10342', '10423', '10432', '12034', '12043', '12304', '12340', '12403', '12430', '13024', '13042', '13204', '13240', '13402', '13420', '14023', '14032', '14203', '14230', '14302', '14320', '20134', '20143', '20314', '20341', '20413', '20431', '21034', '21043', '21304', '21340', '21403', '21430', '23014', '23041', '23104', '23140', '23401', '23410', '24013', '24031', '24103', '24130', '24301', '24310', '30124', '30142', '30214', '30241',\n    '30412', '30421', '31024', '31042', '31204', '31240', '31402', '31420', '32014', '32041', '32104', '32140', '32401', '32410', '34012', '34021', '34102', '34120', '34201', '34210', '40123', '40132', '40213', '40231', '40312', '40321', '41023', '41032', '41203', '41230', '41302', '41320', '42013', '42031', '42103', '42130', '42301', '42310', '43012', '43021', '43102', '43120', '43201', '43210');\n\n    $max = 0;\n\n    for($i=0;$i<120;$i++) {\n    \t$t = $g[$pos[$i][0]][$pos[$i][1]] + $g[$pos[$i][1]][$pos[$i][0]] + $g[$pos[$i][1]][$pos[$i][2]] + $g[$pos[$i][2]][$pos[$i][1]] + 2*($g[$pos[$i][2]][$pos[$i][3]] + $g[$pos[$i][3]][$pos[$i][2]] + $g[$pos[$i][3]][$pos[$i][4]] + $g[$pos[$i][4]][$pos[$i][3]]);\n        if($max < $t) $max = $t;\n    }\n\n    echo $max;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "230c477667ed31ca3780e05f0c3982b2", "src_uid": "be6d4df20e9a48d183dd8f34531df246", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n\n$fp = fopen('php://stdin','r');\nlist($a, $b, $m, $r0) = explode( \" \",trim( str_replace( \"\\r\\n\", '', fgets($fp) ) ) );\n\n$i = 0;\n$r = $r0;\n$numb = array();\nwhile( $i < 4000000 ){\n\t$r = ($a * $r + $b) % $m;\n\t//\n\tif($i > 2750000){\n\t\t$numb[$r]++;\n\t\t//echo $i . ' ' . round(memory_get_usage()/1048576,2).\" megabytes\\n\"; \n\t}\n\t$i++;\n}\n\n$count = 0;\n$min = min($numb);\nforeach( $numb as $val ){\n\t$count += round($val / $min);\n}\necho $count;\nfclose($fp);\n?>", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "7125d6a41cbc324a0856dc5d8cd603bc", "src_uid": "9137197ee1b781cd5cc77c46f50b9012", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nwhile($s = fgets(STDIN)){\n$input .= $s;\n}\n$input = explode(\"\\r\\n\", $input);\n$input[0] = explode(\" \", $input[0]);\n$a = $input[0][0];\n$b = $input[0][1];\n$m = $input[0][2];\n$r[0] = $input[0][3];\n$t = $k = 1;\nfor ($i = 1; $i <= 100000; $i++) {\n    $s = $i - 1;\n    $r[$i] = ($a * $r[$s] + $b) % $m;\n}\n\n$res = array_keys($r,$r[100000]);\n$t = count($res);\n$result=0;\nfor ($i = 0; $i < $t; $i++) {\n    if ($result < $res[$i+1] - $res[$i]) {\n        $result = $res[$i+1] - $res[$i];\n    }\n}\necho $result;\n?>", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "e62e4bbabb4866b746b1eae88354bead", "src_uid": "9137197ee1b781cd5cc77c46f50b9012", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = fopen(\"php://stdin\", 'r');\n$n = stream_get_contents($s);\n$x=explode(\" \",$n);\n$a=(int)$x[0];\n$b=(int)$x[1];\n$m=(int)$x[2];\n$r[0]=(int)$x[3];\n$res=(int)0;\n/*if($m>=1&&$m<=100000) {\n    if($a>=0){\n        if($b<=1000){\n            if($r[0]<=$m&&$r[0]>=0){  */             \n                for($t=0;;$t++){\n                 if($res==1)break;\n                  if($r[$t]>$m||$r[$t]<0){break;}\n                    (int)$r[$t+1]=($r[$t]*$a+$b)%$m;                   \n                 \n                     if($t==1000000){\n                          for($tx=1;$tx<$t;$tx++){\n                            // echo $r[$t-$tx].' == '.$r[$t].'-----|||';\n                              if($r[$t-$tx]==$r[$t]){echo ($tx);$res=1;break;}\n                            if($res==1)break;\n                          }                          \n                     }elseif($t>1000000){echo 1;$res=1;}\n                     else{\n                          if($r[$t+1]==$r[$t]){echo 1;$res=1;break;}\n                     }\n                }\n          /*  }\n        }\n    }\n}*/\n?>", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "7b17df71f171dbc7166d9b95f694cb71", "src_uid": "9137197ee1b781cd5cc77c46f50b9012", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction r($a, $b, $m, $r_past) {\n  return ($a * $r_past + $b) % $m;\n}\n\nfunction find_t($a, $b, $m, $r0) {\n  $values = array($r0 => TRUE);\n  $last = $r0;\n  while (1) {\n    $last = ($a * $last + $b) % $m;    \n    if (isset($l[$last])) {\n      $t = count($l) - array_search($last, array_keys($l));\n      return $t;\n    }\n    $l[$last] = TRUE;\n  }\n}\n\nlist($a, $b, $m, $r0) = explode(' ', trim(fgets(STDIN)));\nprint (find_t($a, $b, $m, $r0)) . \"\\n\";", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "004ce3beaf57fd01f5daaaaf86362d9b", "src_uid": "9137197ee1b781cd5cc77c46f50b9012", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    define (\"TEST\", false);  \n    if (TEST) $GLOBALS['file'] = fopen('input.txt', 'r');\n    else $GLOBALS['file'] = fopen('php://stdin', 'r');  \n    function debug($var){echo '<pre>'; print_r($var); echo '</pre>';}\n    function read_str(){return trim(fgets($GLOBALS['file']));}\n    function read_array(){return explode(' ', read_str());}\n    /***************************************************************/\n\n    list($a, $b, $m, $r0) = read_array();\n    \n    $i=0;\n    $r[$i] = $r0;\n    do\n    {\n        $i++;\n        $r[$i] = ($a*($r[$i-1])+$b)%$m;\n        \n        \n    }\n    while($i<2*$m); \n    $r = array_reverse($r);\n\n    function t($arr, $t)\n    {\n        for($i=0; $i<$t; $i++)\n        {\n            if($arr[$i] != $arr[$t+$i]) return false;\n        }\n        return true;\n    }\n    \n    for ($k=1; $k<=$m; $k++)\n    {   \n        if(t($r, $k))\n        {\n            echo $k;die();\n        }       \n    }\n", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "5d149ef2928f6c3808c7be434496fdeb", "src_uid": "9137197ee1b781cd5cc77c46f50b9012", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$f=trim(fgets(STDIN));\n\n\n$l=explode(\" \", $f);\n$d1=$l[0];\n$d2=$l[1];\n$d3=$l[2];\n\n$right_d=0;\nif($d1 < $d2 +$d3)\n{\n\t$right_d = $d1;\n}else{\n\t\t$right_d = 2*($d2+$d3);\t\n\t\techo $right_d;\n\t\texit();\n}\nif($d3 < $d1 + $d2){\n\t\t$right_d += $d3;\n\t}else{\n\t\t$right_d+=2*$d2+$d1;\n\t\techo $right_d;\n\t\texit();\n}\nif($d2 < $d1+$d3){\n   \t$right_d += $d2; \n}else{\n    $right_d += $d1+$d3; \n    echo $right_d;\n    exit();\n}\n\t\n\n\t\n\techo $right_d;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ad58bb5d731d14999bac184b05cf10ab", "src_uid": "26cd7954a21866dbb2824d725473673e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = $a + $a + $b + $b;\n$e = $a + $c + $c + $a;\n$f = $a + $c + $b;\n$g = $b + $b + $a + $a;\n$h = $b + $c + $c + $b;\n$i = $b + $c + $a;\nprint min($d, $e, $f, $g, $h, $i);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4477c17645322d33a7551b0525df4612", "src_uid": "26cd7954a21866dbb2824d725473673e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d%d%d\", $d1, $d2, $d3);\n    echo min(2 * min($d1, $d2) + 2 * max($d1, $d2), 2 * min($d1, $d2) + 2 * $d3, $d1 + $d2 + $d3).PHP_EOL; \n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a42347e6758d69064615eefd9f54f967", "src_uid": "26cd7954a21866dbb2824d725473673e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = fgets(STDIN);\n    \n    if($n == 1) {\n        $min = 0;\n        $max = 1;\n    } else if($n > 1 && $n < 6) {\n        $min = 0;\n        $max = 2;\n    } else if($n == 6) {\n        $min = 1;\n        $max = 2;\n    } else {\n        if(fmod($n, 7) == 0) {\n            $min = $n/7*2;\n            $max = $n/7*2;\n        } else if(fmod($n, 7) == 1) {\n            $min = ($n - fmod($n, 7))/7*2;\n            $max = ($n - fmod($n, 7))/7*2 + 1;\n        } else if(fmod($n, 7) == 6) {\n            $min = ($n - fmod($n, 7))/7*2 + 1;\n            $max = ($n - fmod($n, 7))/7*2 + 2;\n        } else {\n            $min = ($n - fmod($n, 7))/7*2;\n            $max = ($n - fmod($n, 7))/7*2 + 2;\n        }\n    }\n    \n    echo $min. ' ' . $max;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "constructive algorithms", "brute force"], "code_uid": "f2b1ca759daa9f74840fd5c116f33e75", "src_uid": "8152daefb04dfa3e1a53f0a501544c35", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$c = $n;\n$min = 0;\n$max = 0;\nwhile ($c > 0) {\n    $c -= 1;\n    $max += 1;\n    if ($c > 0) {\n        $c -= 1;\n        $max += 1;\n    } else {\n        break;\n    }\n    $c -= 5;\n}\n$c = $n;\nwhile ($c > 0) {\n    $c -= 5;\n    if ($c > 0) {\n        $c -= 1;\n        $min += 1;\n    }\n    if ($c > 0) {\n        $c -= 1;\n        $min += 1;\n    } else {\n        break;\n    }\n}\nprint $min . \" \" . $max;\n?>\n\n", "lang_cluster": "PHP", "tags": ["math", "greedy", "constructive algorithms", "brute force"], "code_uid": "bb4f0beb2eea9a7fa4b8bc421e436aae", "src_uid": "8152daefb04dfa3e1a53f0a501544c35", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = fgets(STDIN);\n$min = (int) ($n / 7);\n$j = $n - $min * 7;\n$max = 2 * $min;\n$min *= 2;\nif($j == 6) {\n    $min++;\n    $max += 2;\n}\nelse if($j == 1) {\n    $max += 1;\n}\nelse if($j == 0) {\n    \n}\nelse {\n    $max += 2;\n}\n\necho $min . ' ' . $max;", "lang_cluster": "PHP", "tags": ["math", "greedy", "constructive algorithms", "brute force"], "code_uid": "812df5c0200da650b9cc2170988e3244", "src_uid": "8152daefb04dfa3e1a53f0a501544c35", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=trim(fgets(STDIN));\n$ans1=0;\n$ans2=$n;\nif ($n<=7) $ans2=max(0,$n-5);\nfor ($i=0;($i<7)&&($i<=$n);$i++){\n\t$a=(int)(($n-$i)/7);\n\t$b=($n-$i)%7;\n\t$c=$a*2+min($i,2)+max(0,$b-5);\n\t$ans1=max($ans1,$c);\n\t$ans2=min($ans2,$c);\n}\necho \"$ans2 $ans1\";\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "constructive algorithms", "brute force"], "code_uid": "d7df650ec43aa6b3baf8e0151a24bce8", "src_uid": "8152daefb04dfa3e1a53f0a501544c35", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = intval(trim(fgets(STDIN)));\n    if(($n < 6) || ($n%2 != 0)){\n        echo \"0\";\n    }else{\n        $n /= 2;\n        $ans = ($n%2 != 0) ? floor($n/2) : $n/2 - 1;\n        echo $ans;\n    }\n?>", "lang_cluster": "PHP", "tags": ["math", "combinatorics"], "code_uid": "890ff3208c72d6df1e8b1adf5d476cd8", "src_uid": "32b59d23f71800bc29da74a3fe2e2b37", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = trim(fgets(STDIN));\nif($a == 1)\n{\n     print \"0\";\n}\nelse\n{\n     $e = min($b, $c);\n     $f = min($b, $c, $d);\n     $g = ($a - 1) * $f;\n     print $e + $g - $f;\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "8572d5eee8b26158dfc8557448aa5a4c", "src_uid": "6058529f0144c853e9e17ed7c661fc50", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// Retrieve input and show output\n$stream = fopen(\"php://stdin\", \"r\");\n$input = stream_get_contents($stream);\n$inputs = preg_split(\"/[\\s]+/\", $input);\necho func($inputs);\n\n// Codeforces Contest 127 Division 2 Problem C\nfunction func($in) {\n$x = $in[0];\nif ($x == 3) {return 5;}\n$q = 0;\nwhile (true) {\n\tif ($x <= (pow($q, 2) + pow($q+1, 2))) {return (2 * $q + 1);}\n\t$q++;\n}\n}\n\n// End of submission file\n// Submission by chaotic_iak\n?>", "lang_cluster": "PHP", "tags": ["math", "binary search"], "code_uid": "a8eb1d20662040240f4dcd0df6827897", "src_uid": "01eccb722b09a0474903b7e5abc4c47a", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\nlist($n, $d) = explode(' ', rtrim(fgets($f)));\n$a = explode(' ', rtrim(fgets($f)));\n$m = rtrim(fgets($f));\n\n$hooks = array(); // [] does not work!\nforeach ($a as $index => $price) {\n  $hooks[] = array(\n    'id' => $index+1,\n    'price' => $price\n  );\n}\n\nusort($hooks, function($a, $b) {\n  return ($a['price'] < $b['price']) ? -1 : 1;\n});\n\n$rubles = 0;\n$min = min($m, $n);\nfor ($i = 0; $i < $min; $i++) {\n  $rubles += $hooks[$i]['price'];\n}\n\nif ($m > $n) {\n  $rubles -= ($m-$n)*$d;\n}\n\necho $rubles.\"\\n\";\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0ba2871ae3d2cf3c1fe65889c9a4be95", "src_uid": "5c21e2dd658825580522af525142397d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = \".\" . trim(fgets(STDIN));\n$b = strpos($a, \"ABC\");\n$c = strpos($a, \"BCA\");\n$d = strpos($a, \"CBA\");\n$e = strpos($a, \"BAC\");\n$f = strpos($a, \"ACB\");\n$g = strpos($a, \"CAB\");\nif(($b == TRUE) || ($c == TRUE) || ($d == TRUE) || ($e == TRUE) || ($f == TRUE) || ($g == TRUE))\n{\n     print \"Yes\";\n}\nelse\n{\n     print \"No\";\n}\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "2a066bf0512f71d15b1673f4fe22cc8c", "src_uid": "ba6ff507384570152118e2ab322dd11f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nprint preg_match('/A(BC|CB)|B(AC|CA)|C(AB|BA)/', substr(fgets(STDIN), 0, 100)) ? 'YES' : 'NO';\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "32ef765f03056f1492e396fb68d41c70", "src_uid": "ba6ff507384570152118e2ab322dd11f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = explode(\" \", trim(fgets(STDIN)));\n$e = array_sum($d);\n$f = array_fill(1, $b, 0);\nfor($x = 1; $x <= $b; $x++)\n{\n     $f[$x] += $d[$x - 1];\n}\n$g = 0;\nfor($x = 0; $x <= $a - $e; $x++)\n{\n     $h = array_slice($c, $x, $e);\n     $i = array_fill(1, $b, 0);\n     for($y = 0; $y < $e; $y++)\n     {\n          $i[$h[$y]]++;\n     }\n     if($f == $i)\n     {\n          $g = 1;\n          break;\n     }\n}\nif($g == 0)\n{\n     print \"NO\";\n}\nelse\n{\n     print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1c142e0be62a5b1f0a61a78bc11f6c58", "src_uid": "59f40d9f35e5fe402112214b42b682b5", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\nlist($e, $f) = explode(\" \", trim(fgets(STDIN)));\n$g = 0;\n$h = $c + $e;\n$i = max($d, $f);\nif((($h <= $a) && ($i <= $b)) || (($h <= $b) && ($i <= $a)))\n{\n    $g = 1;\n}\n$h = $c + $f;\n$i = max($d, $e);\nif((($h <= $a) && ($i <= $b)) || (($h <= $b) && ($i <= $a)))\n{\n    $g = 1;\n}\n$h = $d + $e;\n$i = max($c, $f);\nif((($h <= $a) && ($i <= $b)) || (($h <= $b) && ($i <= $a)))\n{\n    $g = 1;\n}\n$h = $d + $f;\n$i = max($c, $e);\nif((($h <= $a) && ($i <= $b)) || (($h <= $b) && ($i <= $a)))\n{\n    $g = 1;\n}\nif($g == 1)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["constructive algorithms", "implementation"], "code_uid": "75563f458f2bd636f15820ca7ed748ac", "src_uid": "2ff30d9c4288390fd7b5b37715638ad9", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = $a[0];\n$c = $a[1];\nif((($b == \"a\") && ($c == \"1\")) || (($b == \"a\") && ($c == \"8\")) || (($b == \"h\") && ($c == \"1\")) || (($b == \"h\") && ($c == \"8\")))\n{\n     print \"3\";\n}\nelseif(($b == \"a\") || ($b == \"h\") || ($c == \"1\") || ($c == \"8\"))\n{\n     print \"5\";\n}\nelse\n{\n     print \"8\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "8f7f1c25b6ee0f2525c8014dc8e3f0fe", "src_uid": "6994331ca6282669cbb7138eb7e55e01", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($h, $m) = explode(':', trim(fgets(STDIN)));\n$n = trim(fgets(STDIN));\n\n$time = mktime($h, $m, 0, 11, 11, 2006);\n\n$time = $time + ($n*60);\n\n$asw = date('H:i', $time);\n\n\n\necho $asw;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "692312eeed55d3a013883af1882f1128", "src_uid": "20c2d9da12d6b88f300977d74287a15d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*\n * Secdra @2020\n */\n\nfscanf(STDIN, \"%s\", $time);\nfscanf(STDIN, \"%d\", $a);\n\n$timea = DateTime::createFromFormat(\"H:i\", trim($time));\n\n$timea->modify(\"+{$a} minutes\");\n\nprintf(\"%s\", $timea->format('H:i'));\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "80241ef3c8e6bb503b06a2361c766caa", "src_uid": "20c2d9da12d6b88f300977d74287a15d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = substr($a, 0, 2);\n$c = substr($a, 3);\n$d = $b * 60 + $c;\n$e = trim(fgets(STDIN));\n$f = ($d + $e) % 1440;\n$g = floor($f / 60);\n$h = $f % 60;\nif(strlen($g) == 1)\n{\n     $g = 0 . $g;\n}\nif(strlen($h) == 1)\n{\n     $h = 0 . $h;\n}\nprint $g . \":\" . $h;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "58409377c190455747c95e1b89b126ef", "src_uid": "20c2d9da12d6b88f300977d74287a15d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%d:%d\", $h, $m);\nfscanf(STDIN, \"%d\", $a);\n\n$tm = $h * 3600  + $m * 60 + $a * 60;\n\necho date(\"H:i\", $tm)\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7d63cff70f39aa795ee5fb82917a6381", "src_uid": "20c2d9da12d6b88f300977d74287a15d", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str=trim(fgets(STDIN));\n$split=str_split($str);\n$count=count(array_unique($split));\nif($count==1)\n{\n\techo \"$count\";\n}\nelse\n{\n $count=1;\n for ($i=0; $i <count($split) ; $i++)\n  { \n \t\t# code...\n    $rmvLst=array_pop($split);\n\tarray_unshift($split, $rmvLst);\n\t$str1=implode('',$split);\n\tif($str1==$str)\n\t {\n\t\techo \"$count\";\n\t\tbreak;\n\t }\n\t $count++;\t\n\n  }\n\n}\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "9bb07a6791cdd6f341ec010525ce6e1d", "src_uid": "8909ac99ed4ab2ee4d681ec864c7831e", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array();\n$c = 1;\nfor($x = 0; $x < strlen($a); $x++)\n{\n     $d = substr($a, 0, strlen($a) - $c);\n     $e = substr($a, strlen($a) - $c);\n     $a = $e . $d;\n     $b[$x] = $a;\n}\n$f = array_unique($b);\nprint count($f);\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "b7ef1808db4a1fe99611b53f19a50f26", "src_uid": "8909ac99ed4ab2ee4d681ec864c7831e", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = floor($b / $a);\n$e = array();\nfor($x = 0; $x < $b; $x++)\n{\n     $e[$c[$x]]++;\n}\nsort($e);\n$f = 0;\nfor($x = $d; $x >= 1; $x--)\n{\n     $g = 0;\n     for($y = 0; $y < count($e); $y++)\n     {\n          $h = floor($e[$y] / $x);\n          $g += $h;\n          if($g >= $a)\n          {\n               $f = max($f, $x);\n               break;\n          }\n     }\n}\nprint $f;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "binary search"], "code_uid": "3eec080ebbed648a11ce90fc14b5e602", "src_uid": "b7ef696a11ff96f2e9c31becc2ff50fe", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\r\n$fileName = 'php://stdin';\r\n$file = fopen($fileName, \"r\");\r\n \r\n$t = trim(fgets($file));\r\n\r\nfor ($i = 0; $i < $t; $i++) {\r\n  $p = trim(fgets($file));\r\n  \r\n  $r = pow(2, $p) - 1;\r\n  echo $r.PHP_EOL;\r\n}\r\n\r\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "20d0a2cbf5dce9190b8e1a4c3f0d7101", "src_uid": "d5e66e34601cad6d78c3f02898fa09f4", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n  $f = fopen('php://stdin', 'r');\n  $param = explode(\" \", str_replace([\"\\r\", \"\\n\"], \"\", fgets($f)));\n  $sequence = explode(\" \", str_replace([\"\\r\", \"\\n\"], \"\", fgets($f)));\n  $button = explode(\" \", str_replace([\"\\r\", \"\\n\"], \"\", fgets($f)));\n  $out = '';\n  \n  for ($i = 0; $i < $param[0]; $i++) {\n    if (in_array($sequence[$i], $button)) $out.= $sequence[$i] . ' ';\n  }\n  echo rtrim($out, ' ');\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "72ee13f22ac3988532ca34eb592a1c22", "src_uid": "f9044a4b4c3a0c2751217d9b31cd0c72", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%d %d\", $n, $t);\n// $f[i,j,y] = [number of points; number of segments between extremums; last y]\n// result = \\sum_y $f[n,2t,y]\n$f = array_fill(0, $n + 1, array_fill(0, 2 * $t + 2, array_fill(0, 4, 0)));\nfor ($y1 = 0; $y1 < 4; $y1++)\n\tfor ($y2 = $y1 + 1; $y2 < 4; $y2++)\n\t\t$f[2][1][$y2]++;\nfor ($i = 2; $i < $n; $i++)\n\tfor ($j = 1; $j <= 2 * $t; $j++)\n\t\tfor ($y1 = 0; $y1 < 4; $y1++) {\n\t\t\tif ($f[$i][$j][$y1] == 0) continue;\n\t\t\t// printf(\"f[%d,%d,%d] = %d\\n\", $i, $j, $y1, $f[$i][$j][$y1]);\n\t\t\tfor ($y2 = 0; $y2 < 4; $y2++)\n\t\t\t\tif ($y1 != $y2) {\n\t\t\t\t\t// printf(\"add to f[%d,%d,%d]\\n\", $i + 1, $j + (($y2 > $y1) != ($j % 2 == 0) ? 1 : 0), $y2);\n\t\t\t\t\t$f[$i + 1][$j + (($y2 > $y1) != ($j % 2 == 1) ? 1 : 0)][$y2] += $f[$i][$j][$y1];\n\t\t\t\t}\n\t\t}\nprint(array_sum($f[$n][2 * $t]).\"\\n\");\n\n?>\n", "lang_cluster": "PHP", "tags": ["dp"], "code_uid": "0e85010680402398392b432142d4b4de", "src_uid": "6d67559744583229455c5eafe68f7952", "difficulty": 1900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n, $a, $b) = explode(' ', trim(fgets(STDIN)));\n\n$max = 0;\nforeach (range(1, $n - 1) as $value)\n{\n    $aDiv = $value;\n    $bDiv = $n - $value;\n    $max = max($max, min(floor($a / $aDiv), floor($b / $bDiv)));\n}\n\necho $max;\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "binary search"], "code_uid": "885c8430dd07bacb8cb3ee808dd88359", "src_uid": "a254b1e3451c507cf7ce3e2496b3d69e", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = 1000;\n$d2 = 0;\nfor($x = 1; $x < $a; $x++)\n{\n     $e = $a - $x;\n     $f = floor($b / $e);\n     $g = floor($c / $x);\n     $d = min($f, $g);\n     $d2 = max($d2, $d);\n}\nif($a == $b + $c)\n{\n     print \"1\";\n}\nelse\n{\n     print $d2;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "binary search"], "code_uid": "1d045d75eee62ec2efb918dcbb390f30", "src_uid": "a254b1e3451c507cf7ce3e2496b3d69e", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d %d %d\\n\",$n,$a,$b);\n$rez=min($a,(integer)($b/($n-1)));\nfor ($i=2; $i<$n; $i++)\n{\n    $q=min((integer)($a/$i),(integer)($b/($n-$i)));\n    if ($q>$rez)\n        $rez=$q;\n}\necho $rez;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "binary search"], "code_uid": "c520721bc847ed1e49b1686c98766a7b", "src_uid": "a254b1e3451c507cf7ce3e2496b3d69e", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = strlen($a) % 2;\nif($b == 1)\n{\n     $c = strlen($a) + 1;\n     $d = $c / 2;\n     $e = array_fill(0, $d, 4);\n     $f = array_fill(0, $d, 7);\n     $g = array_merge($e, $f);\n     print implode($g);\n}\nelse\n{\n     if($a[0] < 4)\n     {\n          $c = strlen($a);\n          $d = $c / 2;\n          $e = array_fill(0, $d, 4);\n          $f = array_fill(0, $d, 7);\n          $g = array_merge($e, $f);\n          print implode($g);\n     }\n     elseif($a[0] == 4)\n     {\n          $c = 0;\n          $d = 0;\n          for($x = 0; $x < strlen($a); $x++)\n          {\n               if($a[$x] == 4)\n               {\n                    $c++;\n               }\n               elseif($a[$x] == 7)\n               {\n                    $d++;\n               }\n          }\n          if((strlen($a) == $c + $d) && ($c == $d))\n          {\n               print $a;\n          }\n          else\n          {\n               $e = strlen($a) - 1;\n               if($e == 1)\n               {\n                    if($a[1] <= 7)\n                    {\n                         print \"47\";\n                    }\n                    else\n                    {\n                         print \"74\";\n                    }\n               }\n               elseif($e == 3)\n               {\n                    $f = array();\n                    $g2 = array_fill(0, 3, 7);\n                    for($y = 0; $y < count($g2); $y++)\n                    {\n                         $g = $g2;\n                         $g[$y] = 4;\n                         array_unshift($g, 4);\n                         $h = implode($g);\n                         $f[count($f)] = $h;\n                    }\n                    $i = 0;\n                    for($x = 0; $x < count($f); $x++)\n                    {\n                         if($a < $f[$x])\n                         {\n                              $i = 1;\n                              break;\n                         }\n                    }\n                    if($i == 0)\n                    {\n                         $c = strlen($a);\n                         $d = $c / 2;\n                         $e = array_fill(0, $d, 4);\n                         $f = array_fill(0, $d - 1, 7);\n                         $g = array_merge($e, $f);\n                         array_unshift($g, 7);\n                         print implode($g);\n                    }\n                    else\n                    {\n                         print $f[$x];\n                    }\n               }\n               elseif($e == 5)\n               {\n                    $f = array();\n                    $g2 = array_fill(0, 5, 7);\n                    for($x = 0; $x < count($g2) - 1; $x++)\n                    {\n                         for($y = $x + 1; $y < count($g2); $y++)\n                         {\n                              $g = $g2;\n                              $g[$x] = 4;\n                              $g[$y] = 4;\n                              array_unshift($g, 4);\n                              $h = implode($g);\n                              $f[count($f)] = $h;\n                         }\n                    }\n                    $i = 0;\n                    for($x = 0; $x < count($f); $x++)\n                    {\n                         if($a < $f[$x])\n                         {\n                              $i = 1;\n                              break;\n                         }\n                    }\n                    if($i == 0)\n                    {\n                         $c = strlen($a);\n                         $d = $c / 2;\n                         $e = array_fill(0, $d, 4);\n                         $f = array_fill(0, $d - 1, 7);\n                         $g = array_merge($e, $f);\n                         array_unshift($g, 7);\n                         print implode($g);\n                    }\n                    else\n                    {\n                         print $f[$x];\n                    }\n               }\n               elseif($e == 7)\n               {\n                    $f = array();\n                    $g2 = array_fill(0, 7, 7);\n                    for($x = 0; $x < count($g2) - 2; $x++)\n                    {\n                         for($y = $x + 1; $y < count($g2) - 1; $y++)\n                         {\n                              for($z = $y + 1; $z < count($g2); $z++)\n                              {\n                                   $g = $g2;\n                                   $g[$x] = 4;\n                                   $g[$y] = 4;\n                                   $g[$z] = 4;\n                                   array_unshift($g, 4);\n                                   $h = implode($g);\n                                   $f[count($f)] = $h;\n                              }\n                         }\n                    }\n                    $i = 0;\n                    for($x = 0; $x < count($f); $x++)\n                    {\n                         if($a < $f[$x])\n                         {\n                              $i = 1;\n                              break;\n                         }\n                    }\n                    if($i == 0)\n                    {\n                         $c = strlen($a);\n                         $d = $c / 2;\n                         $e = array_fill(0, $d, 4);\n                         $f = array_fill(0, $d - 1, 7);\n                         $g = array_merge($e, $f);\n                         array_unshift($g, 7);\n                         print implode($g);\n                    }\n                    else\n                    {\n                         print $f[$x];\n                    }\n               }\n               elseif($e == 9)\n               {\n                    $f = array();\n                    $g2 = array_fill(0, 9, 7);\n                    for($x = 0; $x < count($g2) - 3; $x++)\n                    {\n                         for($y = $x + 1; $y < count($g2) - 2; $y++)\n                         {\n                              for($z = $y + 1; $z < count($g2) - 1; $z++)\n                              {\n                                   for($z2 = $z + 1; $z2 < count($g2); $z2++)\n                                   {\n                                        $g = $g2;\n                                        $g[$x] = 4;\n                                        $g[$y] = 4;\n                                        $g[$z] = 4;\n                                        $g[$z2] = 4;\n                                        array_unshift($g, 4);\n                                        $h = implode($g);\n                                        $f[count($f)] = $h;\n                                   }\n                              }\n                         }\n                    }\n                    $i = 0;\n                    for($x = 0; $x < count($f); $x++)\n                    {\n                         if($a < $f[$x])\n                         {\n                              $i = 1;\n                              break;\n                         }\n                    }\n                    if($i == 0)\n                    {\n                         $c = strlen($a);\n                         $d = $c / 2;\n                         $e = array_fill(0, $d, 4);\n                         $f = array_fill(0, $d - 1, 7);\n                         $g = array_merge($e, $f);\n                         array_unshift($g, 7);\n                         print implode($g);\n                    }\n                    else\n                    {\n                         print $f[$x];\n                    }\n               }\n          }\n     }\n     elseif($a[0] < 7)\n     {\n          $c = strlen($a);\n          $d = $c / 2;\n          $e = array_fill(0, $d, 4);\n          $f = array_fill(0, $d - 1, 7);\n          $g = array_merge($e, $f);\n          array_unshift($g, 7);\n          print implode($g);\n     }\n     elseif($a[0] == 7)\n     {\n          $c = 0;\n          $d = 0;\n          for($x = 0; $x < strlen($a); $x++)\n          {\n               if($a[$x] == 4)\n               {\n                    $c++;\n               }\n               elseif($a[$x] == 7)\n               {\n                    $d++;\n               }\n          }\n          if((strlen($a) == $c + $d) && ($c == $d))\n          {\n               print $a;\n          }\n          else\n          {\n               $e = strlen($a) - 1;\n               if($e == 1)\n               {\n                    if($a[1] <= 7)\n                    {\n                         print \"74\";\n                    }\n                    else\n                    {\n                         print \"447\";\n                    }\n               }\n               elseif($e == 3)\n               {\n                    $f = array();\n                    $g2 = array_fill(0, 3, 4);\n                    for($y = 0; $y < count($g2); $y++)\n                    {\n                         $g = $g2;\n                         $g[$y] = 7;\n                         array_unshift($g, 7);\n                         $h = implode($g);\n                         $f[count($f)] = $h;\n                    }\n                    $i = 0;\n                    sort($f);\n                    for($x = 0; $x < count($f); $x++)\n                    {\n                         if($a < $f[$x])\n                         {\n                              $i = 1;\n                              break;\n                         }\n                    }\n                    if($i == 0)\n                    {\n                         print \"444777\";\n                    }\n                    else\n                    {\n                         print $f[$x];\n                    }\n               }\n               elseif($e == 5)\n               {\n                    $f = array();\n                    $g2 = array_fill(0, 5, 4);\n                    for($x = 0; $x < count($g2) - 1; $x++)\n                    {\n                         for($y = $x + 1; $y < count($g2); $y++)\n                         {\n                              $g = $g2;\n                              $g[$x] = 7;\n                              $g[$y] = 7;\n                              array_unshift($g, 7);\n                              $h = implode($g);\n                              $f[count($f)] = $h;\n                         }\n                    }\n                    $i = 0;\n                    sort($f);\n                    for($x = 0; $x < count($f); $x++)\n                    {\n                         if($a < $f[$x])\n                         {\n                              $i = 1;\n                              break;\n                         }\n                    }\n                    if($i == 0)\n                    {\n                         print \"44447777\";\n                    }\n                    else\n                    {\n                         print $f[$x];\n                    }\n               }\n               elseif($e == 7)\n               {\n                    $f = array();\n                    $g2 = array_fill(0, 7, 4);\n                    for($x = 0; $x < count($g2) - 2; $x++)\n                    {\n                         for($y = $x + 1; $y < count($g2) - 1; $y++)\n                         {\n                              for($z = $y + 1; $z < count($g2); $z++)\n                              {\n                                   $g = $g2;\n                                   $g[$x] = 7;\n                                   $g[$y] = 7;\n                                   $g[$z] = 7;\n                                   array_unshift($g, 7);\n                                   $h = implode($g);\n                                   $f[count($f)] = $h;\n                              }\n                         }\n                    }\n                    sort($f);\n                    $i = 0;\n                    for($x = 0; $x < count($f); $x++)\n                    {\n                         if($a < $f[$x])\n                         {\n                              $i = 1;\n                              break;\n                         }\n                    }\n                    if($i == 0)\n                    {\n                         print \"4444477777\";\n                    }\n                    else\n                    {\n                         print $f[$x];\n                    }\n               }\n               elseif($e == 9)\n               {\n                    $f = array();\n                    $g2 = array_fill(0, 9, 4);\n                    for($x = 0; $x < count($g2) - 3; $x++)\n                    {\n                         for($y = $x + 1; $y < count($g2) - 2; $y++)\n                         {\n                              for($z = $y + 1; $z < count($g2) - 1; $z++)\n                              {\n                                   for($z2 = $z + 1; $z2 < count($g2); $z2++)\n                                   {\n                                        $g = $g2;\n                                        $g[$x] = 7;\n                                        $g[$y] = 7;\n                                        $g[$z] = 7;\n                                        $g[$z2] = 7;\n                                        array_unshift($g, 7);\n                                        $h = implode($g);\n                                        $f[count($f)] = $h;\n                                   }\n                              }\n                         }\n                    }\n                    sort($f);\n                    $i = 0;\n                    for($x = 0; $x < count($f); $x++)\n                    {\n                         if($a < $f[$x])\n                         {\n                              $i = 1;\n                              break;\n                         }\n                    }\n                    if($i == 0)\n                    {\n                         print \"444444777777\";\n                    }\n                    else\n                    {\n                         print $f[$x];\n                    }\n               }\n          }\n     }\n     elseif($a[0] <= 9)\n     {\n          $c = strlen($a) + 2;\n          $d = $c / 2;\n          $e = array_fill(0, $d, 4);\n          $f = array_fill(0, $d, 7);\n          $g = array_merge($e, $f);\n          print implode($g);\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "binary search", "bitmasks"], "code_uid": "fffb9b7271cd21fde3fb9c31a0cf47e9", "src_uid": "77b5f83cdadf4b0743618a46b646a849", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN , \"%d%d\" , $n , $m);\n$t = $m % ($n*($n+1)/2);\n$p = floor((Sqrt(1+8*$t)-1)/2);\necho $t - (($p*($p+1))/2);\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "d641707761623a899579d34532171a07", "src_uid": "5dd5ee90606d37cae5926eb8b8d250bb", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $m) = explode(' ', trim(fgets(STDIN)));\n\nwhile ($m >= $i)\n{    \n    $m = $m - $i;\n    if ($i == $n)\n    {\n        $i = 0;\n    }\n    $i++;\n    $k = $m;\n}\necho $k\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "92727ab9213be67530d4a2286ed54259", "src_uid": "5dd5ee90606d37cae5926eb8b8d250bb", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \nfscanf(STDIN, \"%d %d\",$m, $f);\n$lcf = $f % ($m*($m+1)/2);\n$x = floor((Sqrt(1+8*$lcf)-1)/2);\necho $lcf-(($x*($x+1))/2);\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "97e586a410a7135adf071192afa95bc5", "src_uid": "5dd5ee90606d37cae5926eb8b8d250bb", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nlist($d, $e, $f) = explode(\" \", trim(fgets(STDIN)));\n$g = trim(fgets(STDIN));\n$h = $a + $b + $c;\n$i = $d + $e + $f;\n$j = ceil($h / 5);\n$k = ceil($i / 10);\nif(($j + $k) <= $g)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "025eff435f075331bc908695a394867e", "src_uid": "fe6301816dea7d9cea1c3a06a7d1ea7e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN, \"%d %d %d\\n\", $c1, $c2, $c3);\n    fscanf(STDIN, \"%d %d %d\\n\", $m1, $m2, $m3);\n    fscanf(STDIN, \"%d\\n\", $n);\n    \n    if ( ceil(($c1 + $c2 + $c3) / 5.0) + ceil(($m1 + $m2 + $m3) / 10.0) <= $n) {\n        printf(\"YES\\n\");\n    } else {\n        printf(\"NO\\n\");\n    }\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "f93a3e30556782d40acb24780b26bbe9", "src_uid": "fe6301816dea7d9cea1c3a06a7d1ea7e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $a = ceil(array_sum(explode(\" \", trim(fgets(STDIN))))/5);\n    $b = ceil(array_sum(explode(\" \", trim(fgets(STDIN))))/10);\n    if($a + $b > trim(fgets(STDIN)))\n        echo 'NO' . PHP_EOL;\n    else echo 'YES' . PHP_EOL;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "bf47503b9ff388bbc60700589539e6b0", "src_uid": "fe6301816dea7d9cea1c3a06a7d1ea7e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, '%d %d %d', $a1, $a2, $a3);\nfscanf(STDIN, '%d %d %d', $b1, $b2, $b3);\nfscanf(STDIN, '%d', $n);\n\n$cups = ceil(($a1 + $a2 + $a3) / 5);\n$medals = ceil(($b1 + $b2 + $b3) / 10);\n\n\necho ($n >= $cups + $medals) ? 'YES' : 'NO';\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "af24cb88e339a0de482bf23d0b2241fb", "src_uid": "fe6301816dea7d9cea1c3a06a7d1ea7e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    fscanf(STDIN,\"%d %d %d\",$a[1],$a[2],$a[3]);\n    fscanf(STDIN,\"%d %d %d\",$b[1],$b[2],$b[3]);\n    fscanf(STDIN,\"%d\",$n);\n    $a=$a[1]+$a[2]+$a[3];\n    $b=$b[2]+$b[3]+$b[1];\n    $a%5==0?$nn=$a/5:$nn=($a-$a%5)/5+1;\n    $b%10==0?$nn+=$b/10:$nn+=($b-$b%10)/10+1;\n    $nn<=$n?printf(\"YES\"):printf(\"NO\");", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e7563d5919fc83d2b1f29edfb91731b1", "src_uid": "fe6301816dea7d9cea1c3a06a7d1ea7e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $a = ceil(array_sum(explode(\" \", trim(fgets(STDIN))))/5);\n    $b = ceil(array_sum(explode(\" \", trim(fgets(STDIN))))/10);\n    fscanf(STDIN, \"%d\", $n);\n    if($a + $b > $n)\n        echo 'NO' . PHP_EOL;\n    else echo 'YES' . PHP_EOL;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "95c1b24daf36eb9ab91eed7408c74201", "src_uid": "fe6301816dea7d9cea1c3a06a7d1ea7e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$a = explode(' ', fgets(STDIN));\n$b = explode(' ', fgets(STDIN));\n$n = (int)fgets(STDIN);\n\n$sum_a = 0;\n$sum_b = 0;\n\nfor ($i = 0; $i < 3; $i ++) {\n\t$sum_a += (int)$a[$i];\n\t$sum_b += (int)$b[$i];\n}\n\n$q_a = intval($sum_a / 5) + ($sum_a % 5 > 0 ? 1 : 0);\n$q_b = intval($sum_b / 10) + ($sum_b % 10 > 0 ? 1 : 0);\n\nprint ($q_a + $q_b <= $n) ? 'YES' : 'NO'; \n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "93183a3b14d4472711b0a1753b70576d", "src_uid": "fe6301816dea7d9cea1c3a06a7d1ea7e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\n\n$s = trim(fgets($f));\n\n$result = '';\n\n\nfor($i=0;$i<strlen($s);$i++){\n\n    if ($i==0 && $s[$i]=='9'){\n        $result.=$s[$i];\n        continue;\n    }\n\n    if ($s[$i]>4){\n        $t = (9 - $s[$i]);\n        $result=$result.$t;\n    } else $result.=$s[$i];\n}\n\nif ($result=='0') exit($s);\n\necho $result;", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "b67485164af3dda6ba33483c1df22a76", "src_uid": "d5de5052b4e9bbdb5359ac6e05a18b61", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s = trim(fgets(STDIN));\n\n$res = '';\n\nforeach (str_split($s) as $i => $ch) {\n  $ch = (int)$ch;\n  if ($ch >= 5) {\n    if ($i != 0 || $ch != 9) {\n      $ch = 9 - $ch;\n    }\n  }\n  $res .= $ch;\n}\n\necho \"$res\\n\";\n", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "57253af69982f7816f38cdc1414a7649", "src_uid": "d5de5052b4e9bbdb5359ac6e05a18b61", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = explode(\" \", trim(fgets(STDIN)));\n$e = $b * $c;\n$f = 0;\nfor($x = 0; $x < $a - $b; $x++)\n{\n     $f += $d[$x];\n}\nprint $e + $f;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "77c0c496bb3490ffd42d26c9ccf72ec3", "src_uid": "92a233f8d9c73d9f33e4e6116b7d0a96", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($m,$s) = explode(\" \", trim(fgets(STDIN)));\n\nif ($s==0 && $m==1) {echo \"0 0\"; exit;}\nif ($s>$m*9 || $s<1) {echo \"-1 -1\"; exit;}\n$j=$s;\nfor ($i=1; $i<=$m; $i++){\n\t$a[0]++;\n\tif ($i==$m) $a[$i]=$j;\n\telse{\n\t\tif ($j>9){\n\t\t\t$a[$i]=9;\n\t\t\t$j-=9;\n\t\t}\n\t\telse{\n\t\t\t$a[$i]=$j-1;\n\t\t\t$j=1;\n\t\t}\n\t}\n}\nfor ($i=$a[0]; $i>0; $i--) echo $a[$i];\necho \" \";\n$j=$s;\nfor ($i=1; $i<=$m; $i++){\n\t$b[0]++;\n\tif ($j>9){\n\t\t$b[$i]=9;\n\t\t$j-=9;\n\t}\n\telse{\n\t\t$b[$i]=$j;\n\t\t$j=0;\n\t}\n}\nfor ($i=1; $i<=$b[0]; $i++) echo $b[$i];\n?>", "lang_cluster": "PHP", "tags": ["greedy", "dp", "implementation"], "code_uid": "146c79512c1cc583b4ee8d8041118b54", "src_uid": "75d062cece5a2402920d6706c655cad7", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = str_split($a);\n$d = str_split($b);\n$j = $d;\n$e = 0;\n$f = 0;\n$g = count($c);\n$h = 0;\nfor($z = 1; $z <= 10000; $z++)\n{\n    for($x = 0; $x < count($c); $x++)\n    {\n        if(($c[$x] == \"2\") || ($c[$x] == \"5\"))\n        {\n            for($y = 0; $y < count($d); $y++)\n            {\n                if(($d[$y] == \"2\") || ($d[$y] == \"5\"))\n                {\n                    unset($d[$y]);\n                    $e = 0;\n                    break;\n                }\n                else\n                {\n                    $e = 1;\n                }\n            }\n            if($e == \"1\")\n            {\n                $e = 0;\n                break;\n            }\n            else\n            {\n                sort($d);\n                $f++;\n            }\n        }\n        elseif(($c[$x] == \"6\") || ($c[$x] == \"9\"))\n        {\n            for($y = 0; $y < count($d); $y++)\n            {\n                if(($d[$y] == \"6\") || ($d[$y] == \"9\"))\n                {\n                    unset($d[$y]);\n                    $e = 0;\n                    break;\n                }\n                else\n                {\n                    $e = 1;\n                }\n            }\n            if($e == \"1\")\n            {\n                $e = 0;\n                break;\n            }\n            else\n            {\n                sort($d);\n                $f++;\n            }\n        }\n        else\n        {\n            for($y = 0; $y < count($d); $y++)\n            {\n                if($c[$x] == $d[$y])\n                {\n                    unset($d[$y]);\n                    $e = 0;\n                    break;\n                }\n                else\n                {\n                    $e = 1;\n                }\n            }\n            if($e == \"1\")\n            {\n                $e = 0;\n                break;\n            }\n            else\n            {\n                sort($d);\n                $f++;\n            }\n        }\n    }\n    if(count($d) == \"0\")\n    {       \n        $h = floor(count($j) / count($c));\n        break;\n    }\n    elseif($f == $g)\n    {\n        $h++;\n        $f = 0;\n    }\n    elseif($f != $g)\n    {\n        break;\n    }\n}\nprint $h;\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "e95e9ed0e4bd12642f4f648ac59fbc7b", "src_uid": "72a196044787cb8dbd8d350cb60ccc32", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = 'php://stdin';\n//$in = 'input.txt';\n\n$num = file($in);\n\n$a = str_split(trim($num[0]));\n\nsort($a, SORT_NUMERIC);\n\n$a = join('', $a);\n\n$a = preg_replace('/^(0*)([^0])/', '$2$1', $a);\n\necho $a === trim($num[1]) ? 'OK' : 'WRONG_ANSWER';\n", "lang_cluster": "PHP", "tags": ["sortings", "implementation"], "code_uid": "641e387c27803ff2fd468012be233acc", "src_uid": "d1e381b72a6c09a0723cfe72c0917372", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = str_split($a);\n$d = 0;\nsort($c);\nfor($x = 0; $x < count($c); $x++)\n{\n    if($c[$x] == 0)\n    {\n       $d++; \n    }\n}\nif($d > 0)\n{\n    $c = array_slice($c, $d);\n    if(count($c) == 1)\n    {\n        print \"WRONG_ANSWER\";\n    }\n    else\n    {\n        for($x = 1; $x <= $d; $x++)\n        {\n            array_splice($c, 1, 0, \"0\");\n        }\n        if(implode($c) === $b)\n        {\n            print \"OK\";\n        }\n        else\n        {\n            print \"WRONG_ANSWER\";\n        }\n    }\n}\nelse\n{\n    if(implode($c) === $b)\n    {\n        print \"OK\";\n    }\n    else\n    {\n        print \"WRONG_ANSWER\";\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation"], "code_uid": "12a0d86153d1442a4f5c5594cd1a238f", "src_uid": "d1e381b72a6c09a0723cfe72c0917372", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$input = trim(file_get_contents('php://stdin'));\nlist($n, $a, $b) = explode(' ', $input);\n\necho min($n - $a, $b + 1);", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "85cac4f0a10ecf6da33866bd4e5d2147", "src_uid": "51a072916bff600922a77da0c4582180", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n,$a,$b) = explode(' ',fgets(STDIN));\n\n$i=0;\nfor( $a; $a<$n; $a++ ){\n    if( $b == 0 ){\n        $i++;\n        break;\n    }\n    $b = $b-1;\n    $i++;\n}\n\necho $i;", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "f0c75a944ea4d67652999e356b045046", "src_uid": "51a072916bff600922a77da0c4582180", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $a, $b) = explode(' ', trim(fgets(STDIN)));\n\n$k = 1 + $b;\n\nif ($k > $n - $a)\n    while ($k > $n - $a)\n        $k--;\n        \necho $k;\n\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "b8f838613374dbc62f6abb57bb35c45d", "src_uid": "51a072916bff600922a77da0c4582180", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n,$a,$b) = explode(' ',trim(fgets(STDIN)));\n\nfor($i=1;$i<=$n;$i++) if(($i-1)>=$a&&($n-$i)<=$b) $r++;\nprint $r;\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "81789c6a5404be46055f11bf474b31db", "src_uid": "51a072916bff600922a77da0c4582180", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = $a - $b;\nif($d > $c)\n{\n    print $c + 1;\n}\nelseif($d == $c)\n{\n    print $c;\n}\nelse\n{\n    print $d;\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "fc59d081613e8f44d5e56ed8347f5098", "src_uid": "51a072916bff600922a77da0c4582180", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $k = (int)readline();\n    $l = (int)readline();\n    $x = $k;\n    $counter = 0;\n    while($x < $l){\n        $x *= $k;\n        $counter ++;\n    }\n    if($x == $l){\n        echo(\"YES\"),(\"\\n\");\n        echo($counter),(\"\\n\");\n    } else{\n        echo(\"NO\"),(\"\\n\");\n    }\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "582a020985bf964a11e099b719c686ae", "src_uid": "8ce89b754aa4080e7c3b2c3b10f4be46", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$f = fopen('php://stdin', 'r');\n//$f = fopen('test.txt', 'r');\n\n$k = trim(fgets($f));\n$l = trim(fgets($f));\n\n$result = $k;\n$n = 0;\nwhile($result<$l){\n    $result*=$k;\n    $n++;\n\n}\n\nif ($result==$l){\n    echo \"YES\\n\";\n    echo $n;\n    exit;\n}\n\necho \"NO\";\n\n\n\n\n", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "6e6e2f9eb815c80932d355a25ecbf62d", "src_uid": "8ce89b754aa4080e7c3b2c3b10f4be46", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nif($b == 1)\n{\n     $e = $a;\n}\nelse\n{\n     $d = array();\n     for($x = 0; $x < $a; $x++)\n     {\n          if($a - $x < $b)\n          {\n               $d[$x] = $d[$x - 1] * 2;\n          }\n          else\n          {\n               $d[$x] = 1;\n          }\n     }\n     if($d[$a - 1] == 1)\n     {\n          $d[$a - 1] = 2;\n     }\n     $e = array_sum($d);\n}\n$f = array(\"1\");\n$c--;\nfor($x = 1; $x < $a; $x++)\n{\n     if($c == 0)\n     {\n          $f[count($f)] = $f[count($f) - 1];\n     }\n     else\n     {\n          $f[count($f)] = $f[count($f) - 1] * 2;\n          $c--;\n     }\n}\n$g = array_sum($f);\nprint $e . \" \" . $g;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "d02a3566780b613ad3ae572db0acbad3", "src_uid": "ce220726392fb0cacf0ec44a7490084a", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\nlist($e, $f, $g, $h) = explode(\" \", trim(fgets(STDIN)));\nlist($i, $j, $k, $l) = explode(\" \", trim(fgets(STDIN)));\nlist($m, $n, $o, $p) = explode(\" \", trim(fgets(STDIN)));\n$q = 0;\nif($d == 1)\n{\n     if(($a == 1) || ($b == 1) || ($c == 1))\n     {\n          $q = 1;\n     }\n     if($e == 1)\n     {\n          $q = 1;\n     }\n     if($j == 1)\n     {\n          $q = 1;\n     }\n     if($o == 1)\n     {\n          $q = 1;\n     }\n}\nif($h == 1)\n{\n     if(($e == 1) || ($f == 1) || ($g == 1))\n     {\n          $q = 1;\n     }\n     if($c == 1)\n     {\n          $q = 1;\n     }\n     if($i == 1)\n     {\n          $q = 1;\n     }\n     if($n == 1)\n     {\n          $q = 1;\n     }\n}\nif($l == 1)\n{\n     if(($i == 1) || ($j == 1) || ($k == 1))\n     {\n          $q = 1;\n     }\n     if($b == 1)\n     {\n          $q = 1;\n     }\n     if($g == 1)\n     {\n          $q = 1;\n     }\n     if($m == 1)\n     {\n          $q = 1;\n     }\n}\nif($p == 1)\n{\n     if(($m == 1) || ($n == 1) || ($o == 1))\n     {\n          $q = 1;\n     }\n     if($a == 1)\n     {\n          $q = 1;\n     }\n     if($f == 1)\n     {\n          $q = 1;\n     }\n     if($k == 1)\n     {\n          $q = 1;\n     }\n}\nif($q == 1)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "859d8aaf39d66625466b2ad7c2a3c67a", "src_uid": "44fdf71d56bef949ec83f00d17c29127", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    list( $x, $y ) = explode(\" \", trim(fgets(STDIN)));\n    if( log($x) * $y > log($y) * $x )\n        echo '>';\n    else if(log($x) * $y < log($y) * $x)\n        echo '<';\n    else echo '=';\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "baaa21e1614d5df06c9fa23c0059cc18", "src_uid": "ec1e44ff41941f0e6436831b5ae543c6", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = $b * log($a);\n$d = $a * log($b);\nif($c < $d)\n{\n     print \"<\";\n}\nelseif($c == $d)\n{\n     print \"=\";\n}\nelseif($c > $d)\n{\n     print \">\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "aac67e77fdb85a113d291af8957a868e", "src_uid": "ec1e44ff41941f0e6436831b5ae543c6", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nlist($d, $e, $f) = explode(\" \", trim(fgets(STDIN)));\n$d -= $a;\nif($d < 0)\n{\n     print \"NO\";\n}\nelse\n{\n     if($d + $e >= $b)\n     {\n          $g = ($d + $e - $b) + $f;\n          if($g >= $c)\n          {\n               print \"YES\";\n          }\n          else\n          {\n               print \"NO\";\n          }\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy", "implementation"], "code_uid": "e7bef0ca28017b6036b4a4e6d3bb464a", "src_uid": "d54201591f7284da5e9ce18984439f4e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$word1 = explode(' ', fgets(STDIN));\n$word2 = explode(' ', fgets(STDIN));\n\nif (intval($word2[0]) < intval($word1[0]))\n\tdie ('NO');\n\nif ((intval($word2[0]) + intval($word2[1]) - intval($word1[0])) < $word1[1])\n\tdie ('NO');\n\nif (intval($word2[0]) + intval($word2[1]) + intval($word2[2]) < intval($word1[0]) + intval($word1[1]) + intval($word1[2]))\n\tdie ('NO');\n\ndie ('YES');", "lang_cluster": "PHP", "tags": ["brute force", "greedy", "implementation"], "code_uid": "5694e07a90691ce7af19c69dc580d1fc", "src_uid": "d54201591f7284da5e9ce18984439f4e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction solve(int $x, int $y, int $z, int $a, int $b, int $c)\n{\n    if ($x > $a || $x + $y > $a + $b || $x + $y + $z > $a + $b + $c) {\n        return 1;\n    } else {\n        return 0;\n    }\n}\n\nlist($x, $y, $z) = explode(' ', trim(fgets(STDIN)));\nlist($a, $b, $c) = explode(' ', trim(fgets(STDIN)));\n\n$ans = solve($x, $y, $z, $a, $b, $c);\necho ['YES', 'NO'][$ans];\n", "lang_cluster": "PHP", "tags": ["brute force", "greedy", "implementation"], "code_uid": "3e00f056ad80f5b90b9bec55a7af958f", "src_uid": "d54201591f7284da5e9ce18984439f4e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n##############################################################################\n\tfunction solve (int $x, int $y, int $z, int $a, int $b, int $c) {\n\t\t#echo ($x.\"<br>\".$a);\n\t\t\n\t\tif ($a >= $x) {\n\t\t\t$a -= $x;\n\n\t\t\tif ($a + $b >= $y) {\n\t\t\t\tif ($a + $b - $y + $c >= $z) {\n\t\t\t\t\techo (\"YES\");\n\t\t\t\t} else {\n\t\t\t\t\techo (\"NO\");\n\t\t\t\t}\t\n\n\t\t\t} else {\n\t\t\t\techo (\"NO\");\n\t\t\t}\n\t\t\t\n\t\t} else {\n\t\t\techo (\"NO\");\n\t\t}\n\t}\n\n\n\t#$in = fopen(\"input.txt\", \"r\");\n\t$in = STDIN;\n\tfscanf($in, \"%d%d%d\", $x, $y, $z);\n\tfscanf($in, \"%d%d%d\", $a, $b, $c);\n\n\tsolve($x, $y, $z, $a, $b, $c);\n\n\n\n\n\n\tfclose($in);\n##############################################################################\n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "greedy", "implementation"], "code_uid": "c7ce2c9661315728fb1f0ede2a0ea964", "src_uid": "d54201591f7284da5e9ce18984439f4e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($x,$y,$z) = explode(' ', trim(fgets(STDIN)));\nlist($a,$b,$c) = explode(' ', trim(fgets(STDIN)));\n\n$sAll = $a + $b + $c;\n\nif(\n    $x>$a ||\n    ($y > ($a + $b - $x ))  ||\n    ($z > ($sAll - $x - $y))\n){\n    echo 'NO';\n} else{\n    echo 'YES';\n}", "lang_cluster": "PHP", "tags": ["brute force", "greedy", "implementation"], "code_uid": "e2eafe6d3b8e1fcdf84eafb57d623566", "src_uid": "d54201591f7284da5e9ce18984439f4e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\tfscanf(STDIN, \"%d%d%d\",$x,$y,$z);\n\tfscanf(STDIN, \"%d%d%d\",$a,$b,$c);\n\tif($a>=$x) {\n\t\t$a-=$x;\n\t\tif($a+$b>=$y) {\n\t\t\tif($a+$b+$c-$y>=$z) {\n\t\t\t\techo \"YES\";\n\t\t\t\texit(0);\n\t\t\t}\n\t\t}\n\t}\n\techo \"NO\";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy", "implementation"], "code_uid": "f7a82e5e9ec79ed4f092febe7f9aeea3", "src_uid": "d54201591f7284da5e9ce18984439f4e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($num, $a, $b, $c)=explode(\" \", trim(fgets(STDIN)));\n$x=0;\nwhile (TRUE) {\n    if (($num + $x) % 4 == 0) {\n        //echo $x;\n        break;  \n    }else $x++;\n}\nif ($x == 0) {\n    echo 0;\n    \n}elseif ($x == 1) {\n   if ($a > 3 * $c or $a > $b + $c) {\n        if ($b + $c > 3 * $c) {\n             echo 3 * $c;\n        }else echo $b + $c;\n   }else echo $a; \n\n}elseif ($x == 3) {\n  if ($a + $b > $c and $c < (3 * $a)) {\necho $c; \n}elseif ($b + $a < (3 * $a)) {\n    \n    echo $a + $b;\n}else echo 3 * $a;\n \n}elseif ($x == 2) {\n    if ($b < (2 * $a) and $b < 2 * $c) {\n    echo $b;\n    }elseif (2 * $c < $x * $a) { echo 2 * $c; }else echo $x * $a ;\n}\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "b9ff01600328e750f809f9b0ebb4b429", "src_uid": "c74537b7e2032c1d928717dfe15ccfb8", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n# $n=number of copybooks she has, $a,$b,$c 1, 2 and 3 copybook pack cost, $k = need to buy\nlist($n, $a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$k = 4 - ($n % 4);\nif ($k == 4) {\n\tdie(\"0\\n\");\n}\n$cost = array();\n\nswitch ($k) {\n\tcase 1:\n\t\t$cost[] = $a;\n\t\t$cost[] = $c * 3;\n\t\t$cost[] = $b + ($a * 3);\n\t\t$cost[] = $b + $c;\n\t\tbreak;\n\t\n\tcase 2:\n\t\t$cost[] = $a * 2;\n\t\t$cost[] = $b;\n\t\t$cost[] = $c * 2;\n\t\tbreak;\n\tcase 3:\n\t\t$cost[] = $a * 3;\n\t\t$cost[] = $b + $a;\n\t\t$cost[] = $c;\n\t\tbreak;\n}\nasort($cost);\n// print_r($cost);\n\nforeach ($cost as $c) {\n\tdie($c.\"\\n\");\n}\n//die($cost[0].\"\\n\");", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "952ba7fe4d2e162dab26c0672dc4ef17", "src_uid": "c74537b7e2032c1d928717dfe15ccfb8", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = 0;\nwhile(TRUE)\n{\n     $f = $a % 4;\n     if($f == 0)\n     {\n          break;\n     }\n     else\n     {\n          $a++;\n          $e++;\n     }\n}\nif($e == 0)\n{\n     print \"0\";\n}\nelseif($e == 1)\n{\n     $g = $c + $d;\n     $h = $d * 3;\n     $i = min($b, $g, $h);\n     print $i;\n}\nelseif($e == 2)\n{\n     $g = $b * 2;\n     $h = $d * 2;\n     $i = min($c, $g, $h);\n     print $i;\n}\nelseif($e == 3)\n{\n     $g = $b + $c;\n     $h = $b * 3;\n     $i = min($d, $g, $h);\n     print $i;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "6adbbc46f7478845e45167c722c45e2b", "src_uid": "c74537b7e2032c1d928717dfe15ccfb8", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str=trim(fgets(STDIN));\n$rev=strrev($str);\n$len=strlen($str);\n\nif($str!=$rev)\n\techo \"$len\";\nelse\n{\n\tfor ($i=1; $i <$len; $i++)\n\t{ \n\t\t$flag=0;\n\t\t$sbstr=substr($str,$i);\n\t\t$revSbstr=strrev($sbstr);\n\t\tif($sbstr!=$revSbstr)\n\t\t{\n          echo strlen($sbstr);\n          $flag=1;\n          break;\n\t\t}\n\n\t}\n\tif ($flag==0)\n\t {\n\t\techo \"0\";\n\t }\n}", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "d2352a28f6341a9478543633d23f8d6c", "src_uid": "6c85175d334f811617e7030e0403f706", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = str_split(trim(fgets(STDIN)));\n$b = array_unique($a);\nif(count($b) == 1)\n{\n     print \"0\";\n}\nelse\n{\n     $c = floor(count($a) / 2);\n     $d = 0;\n     $e = count($a) - 1;\n     $f = 0;\n     for($x = 0; $x < $c; $x++)\n     {\n          if($a[$d] != $a[$e])\n          {\n               $f = 1;\n               break;\n          }\n          else\n          {\n               $d++;\n               $e--;\n          }\n     }\n     if($f == 0)\n     {\n          print count($a) - 1;\n     }\n     elseif($f == 1)\n     {\n          print count($a);\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "fa0d522b5d91318e1720690b682670a2", "src_uid": "6c85175d334f811617e7030e0403f706", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $in = 'php://stdin';\n    //$in = 'input.txt';\n    $input = fopen($in, \"r\");\n\n    $primes = Array(2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97);\n\n    $dividers[1] = Array();\n    $params = explode(' ', trim(fgets($input)));\n    for ($i=2;$i<=max($params);$i++) {\n        $current = $i;\n        $k=0;\n        while ($current!=1) {\n            while ($current%$primes[$k]==0) {\n                $current = $current / $primes[$k];\n                $dividers[$i][] = $primes[$k];\n            }\n            $k++;\n        }\n    }\n\n    $sums = 0;\n    $solve[1] = 1;\n    for ($a=1;$a<=$params[0];$a++) {\n        for ($b=1;$b<=$params[1];$b++) {\n            for ($c=1;$c<=$params[2];$c++) {\n                if (!isset($solve[$a*$b*$c])) {\n                    $mergeArray = array_merge($dividers[$a],$dividers[$b],$dividers[$c]);\n                    $mergeArray = array_count_values($mergeArray);\n                    //print_r($mergeArray);\n\n                    $sum = 1;\n                    $sizeArray = count($mergeArray);\n                    for($i=0;$i<$sizeArray;$i++) {\n                        $sum *= (array_pop($mergeArray) + 1);\n                    }\n                    $sum = $sum;\n                    $sums += $sum;\n                    $solve[$a*$b*$c] = $sum;\n                }\n                else {$sums += $solve[$a*$b*$c];}\n            }\n        }\n    }\n\n    echo $sums;\n    fclose($input);\n?>", "lang_cluster": "PHP", "tags": ["implementation", "number theory"], "code_uid": "8a1e7e141117982053425f58c1353746", "src_uid": "4fdd4027dd9cd688fcc70e1076c9b401", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = fgets(STDIN);\n$b = fgets(STDIN);\n$b = explode(\" \",$b);\n$n = 0;\nwhile ((stripos($b[0],\"7\") === false) and (stripos($b[1],\"7\") === false))\n{\n    $b[1] = $b[1] - $a;\n    if($b[1]<0)\n    {\n        $b[0]--;\n        $b[1] = 60+$b[1];\n    }\n    $n++;\n}\nprint($n);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "771a99525bf8feb63461dba47839ad66", "src_uid": "5ecd569e02e0164a5da9ff549fca3ceb", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nlist($b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = 0;\nwhile(TRUE)\n{\n     $b = strval($b);\n     $c = strval($c);\n     if(($b[0] == 7) || ($b[1] == 7) || ($c[0] == 7) || ($c[1] == 7))\n     {\n          break;\n     }\n     else\n     {\n          $d++;\n          $c -= $a;\n          if($c < 0)\n          {\n               $c = 60 - abs($c);\n               $b--;\n               if($b < 0)\n               {\n                    $b = 23;\n               }\n          }\n     }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "003246f80004fc2495c3130d0b3fbdb9", "src_uid": "5ecd569e02e0164a5da9ff549fca3ceb", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nlist($b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = 0;\nwhile(TRUE)\n{\n     $b = strval($b);\n     $c = strval($c);\n     if(($b[0] == 7) || ($b[1] == 7) || ($c[0] == 7) || ($c[1] == 7))\n     {\n          break;\n     }\n     else\n     {\n          $d++;\n          $c -= $a;\n          if($c < 0)\n          {\n               $c = 60 - abs($c);\n               $b--;\n               if($b < 0)\n               {\n                    $b = 23;\n               }\n          }\n     }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "9013b58187d3f4fa1d297bdb96b9f214", "src_uid": "5ecd569e02e0164a5da9ff549fca3ceb", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array();\nfor($x = 2; $x <= 1000; $x++)\n{\n     $c = 0;\n     for($y = 2; $y <= sqrt($x); $y++)\n     {\n          if($x % $y == 0)\n          {\n               $c = 1;\n               break;\n          }\n     }\n     if($c == 0)\n     {\n          $b[count($b)] = $x;\n     }\n}\n$d = floor($a / 2);\n$e = ceil($a / 2);\nif($d == $e)\n{\n     $d--;\n     $e++;\n}\nwhile(TRUE)\n{\n     $f = array();\n     $g = 0;\n     $h = $d;\n     while(TRUE)\n     {\n          if($b[$g] > $h)\n          {\n               break;\n          }\n          else\n          {\n               $i = $h % $b[$g];\n               if($i == 0)\n               {\n                    $f[count($f)] = $b[$g];\n                    $h /= $b[$g];\n               }\n               else\n               {\n                    $g++;\n               }\n          }\n     }\n     $j = array();\n     $k = 0;\n     $l = $e;\n     while(TRUE)\n     {\n          if($b[$k] > $l)\n          {\n               break;\n          }\n          else\n          {\n               $m = $l % $b[$k];\n               if($m == 0)\n               {\n                    $j[count($j)] = $b[$k];\n                    $l /= $b[$k];\n               }\n               else\n               {\n                    $k++;\n               }\n          }\n     }\n     $n = array_intersect($f, $j);\n     if(count($n) == 0)\n     {\n          break;\n     }\n     else\n     {\n          $d--;\n          $e++;\n     }\n}\nprint $d . \" \" . $e;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms"], "code_uid": "7aed201a14ca569659aa02046da36b08", "src_uid": "0af3515ed98d9d01ce00546333e98e77", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction gcd($a, $b) {\n    while ($a <> 0 && $b <> 0) {\n        if ($a > $b)\n            $a = $a % $b;\n        else\n            $b = $b % $a;\n    }\n    return abs($a + $b);\n}\n\n$input = rtrim(fgets(STDIN));\n$raw = explode(' ', $input);\n\n$n = (int)$raw[0];\n\nfor ($i = (int)($n / 2); $i > 0; $i--) {\n    $a = $i;\n    $b = $n - $i;\n\n    if ($a >= $b) {\n        continue;\n    }\n\n    $gcd = gcd($a, $b);\n\n    if ($gcd == 1) {\n        echo $a . ' ' . $b . PHP_EOL;\n        die;\n    }\n}", "lang_cluster": "PHP", "tags": ["brute force", "math", "constructive algorithms"], "code_uid": "0686e3503f30bae418b2ef652ea3e4ad", "src_uid": "0af3515ed98d9d01ce00546333e98e77", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=fgets(STDIN);\n$input=fgets(STDIN);\n$san=preg_match_all('/(SF)/',$input);\n$fra=preg_match_all('/(FS)/',$input);\nif($san > $fra){\n      echo \"YES\";\n}else{\n      echo \"NO\";\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "855df550d0079e7f1cd87d32e01ff172", "src_uid": "ab8a2070ea758d118b3c09ee165d9517", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%d\", $n);\nfscanf(STDIN, \"%s\", $s);\n\n$s = str_split($s);\n$good = 0;\n$bad = 0;\n\nfor ($i=0; $i<($n-1); $i++) {\n\tif ($s[$i] != $s[$i+1]) {\n\t\tif ($s[$i+1] === \"F\") {\n\t\t\t$good++;\n\t\t}\n\t\telse $bad++;\n\t}\n}\n\necho ($good > $bad ? \"YES\" : \"NO\"); \n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "2d67de37be1f908780a25ab0f3426cf8", "src_uid": "ab8a2070ea758d118b3c09ee165d9517", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = 0;\nfor($x = 0; $x < $a - 1; $x++)\n{\n     if(($b[$x] == \"S\") && ($b[$x + 1] == \"F\"))\n     {\n          $c++;\n     }\n     elseif(($b[$x] == \"F\") && ($b[$x + 1] == \"S\"))\n     {\n          $c--;\n     }\n}\nif($c > 0)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "356df44cf0d657adc69b4b60520f3136", "src_uid": "ab8a2070ea758d118b3c09ee165d9517", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nreadline();\n$s = readline();\necho substr_count($s, 'SF') > substr_count($s, 'FS') ? 'YES' : 'NO';", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "2cfba154f0f058785aee3e63337a9ae5", "src_uid": "ab8a2070ea758d118b3c09ee165d9517", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction _merge($a) {\n    $k = 0;\n    $len = count($a);\n    for($i=0; $i<$len-1; $i=$i+2) {\n        if($a[$i] == $a[$i+1]) {\n            $v = $a[$i]+1;\n            unset($a[$i]);\n            $a[$i+1] = $v;\n            $k++;\n        }\n    }\n    return ($k > 0) ? _merge(array_values($a)) : $a;\n}\n\n$n = trim(fgets(STDIN));\n$arr = array_fill(0, $n, 1);\n$o = _merge($arr);\n\nfor($i=0; $i<count($o); $i++) {\n    echo $o[$i].\" \";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "338426113619628c1ddc237a04a62fde", "src_uid": "757cd804aba01dc4bc108cb0722f68dc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 0;\n$c = array();\nwhile(TRUE)\n{\n     $d = pow(2, $b);\n     if($a < $d)\n     {\n          array_push($c, $b);\n          $a -= ($d / 2);\n          $b = 0;\n          if($a == 0)\n          {\n               break;\n          }\n     }\n     elseif($a == $d)\n     {\n          array_push($c, $b + 1);\n          $a -= $d;\n          $b = 0;\n          if($a == 0)\n          {\n               break;\n          }\n     }\n     else\n     {\n          $b++;\n     }\n}\nprint implode(\" \", $c);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "373c0fefc68239345fd318abc00ce4c7", "src_uid": "757cd804aba01dc4bc108cb0722f68dc", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = 0;\nfor($x = 0; $x < count($b); $x++)\n{\n     if($b[$x] == $c[$x])\n     {\n          array_splice($b, $x, 1);\n          array_splice($c, $x, 1);\n          $x--;\n     }\n}\n$e = array(1 => 0, 2 => 0, 3 => 0, 4 => 0, 5 => 0);\nfor($x = 0; $x < count($b); $x++)\n{\n     $e[$b[$x]]++;\n     $e[$c[$x]]++;\n}\n$f = 0;\nfor($x = 1; $x <= 5; $x++)\n{\n     if($e[$x] != 0)\n     {\n          $g = $e[$x] % 2;\n          if($g != 0)\n          {\n               $f = 1;\n               break;\n          }\n     }\n}\nif($f == 1)\n{\n     print \"-1\";\n}\nelse\n{\n     $h = array(1 => 0, 2 => 0, 3 => 0, 4 => 0, 5 => 0);\n     $i = array(1 => 0, 2 => 0, 3 => 0, 4 => 0, 5 => 0);\n     for($x = 0; $x < count($b); $x++)\n     {\n          $h[$b[$x]]++;\n     }\n     for($x = 0; $x < count($c); $x++)\n     {\n          $i[$c[$x]]++;\n     }\n     $j = array(1 => 0, 2 => 0, 3 => 0, 4 => 0, 5 => 0);\n     for($x = 1; $x <= 5; $x++)\n     {\n          $k += (max($h[$x], $i[$x]) - min($h[$x], $i[$x])) / 2;\n     }\n     print $k / 2;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "82354442f29559e9625c3dd928872ef7", "src_uid": "47da1dd95cd015acb8c7fd6ae5ec22a3", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*****************************************/\nclass InputReader {protected $_fh;public function __construct($fileHandler = STDIN){$this->_fh = $fileHandler;}\n\tpublic function readInt() {$d = trim(fgets($this->_fh));return (int)$d;}\n\tpublic function readString() {$d = trim(fgets($this->_fh));return $d;}\n\tpublic function readArrayOfInt($size, $indexFrom = 0) {$a = [];$ind = $indexFrom;foreach (explode(' ', fgets($this->_fh)) as $item) {$a[$ind++] = (int)$item;}return $a;}\n\tpublic function readArrayOfString($size, $indexFrom = 0) {$a = [];$ind = $indexFrom;foreach (explode(' ', fgets($this->_fh)) as $item) {$a[$ind++] = $item;}return $a;}\n}\n\n/* Perform action N times. Can return values in array */\nfunction ntimes($n, $func, $returnResults = false) {$a = [];for ($i=1; $i<=$n; $i++) {$result = $func();if ($returnResults) {$a[$i] = $result;}}return $a;}\n\n/* Integral. Keys preserved. By reference. */\nfunction cumsum(&$a){$sum = 0;foreach($a as $k=>$v) {$a[$k] += $sum;$sum = $a[$k];}}\n\n/* Difference. Keys preserved. By reference. */\nfunction diff(&$a){$prev = 0;foreach($a as $k=>$v) {$buf=$a[$k];$a[$k]-=$prev;$prev = $buf;}}\n\nfunction bitCount($n){$cnt = 0;for ($j=$n; $j; $j>>=1){$cnt += $j&1;}return $cnt;}\n\nclass PrimeUtils {static protected $divisors = [1 => [1=>true],2 => [1=>true, 2=>true],];static protected $primes = []; \n\tstatic public function primes($limit){$a = str_repeat(chr(85), ($limit>>3) + 1);$a[0] = chr(83);for ($i=3; $i*$i < $limit; $i+=2) {if (ord($a[$i>>3]) & (1<<($i%8))) {;} else {for ($k=$i; $k*$i<$limit; $k++) {$n = $k*$i;$a[$n>>3] = chr(ord($a[$n>>3]) | (1<<($n%8)));}}}yield 2;for ($i=3; $i<$limit; $i+=2) {if (!(ord($a[$i>>3]) & (1<<($i%8)))) {yield $i;}}}\n\tstatic public function divisors($n, $lp = 2) {if (isset(self::$divisors[$n])) {return self::$divisors[$n];}if (empty(self::$primes)) {$primes = [];foreach (self::primes(1e3) as $prime) {$primes[$prime] = $prime;}self::$primes = $primes;}$r = [];foreach (self::$primes as $p) {if ($p>=$lp) {if ($n < $p*$p) {$r = [1=>true, $n=>true];break;} elseif ($n%$p==0) {foreach([1, $p] as $pre) {foreach(self::divisors(intdiv($n,$p), $p) as $nxt=>$v) {$r[$nxt*$pre] = true;}}break;}}}self::$divisors[$n] = $r;return self::$divisors[$n];}\n}\n\n/*****************************************/\n\n$ir = new InputReader();\n\n/* TASK */\n\n$n = $ir->readInt();\n\n$cnt = 0;\nfor ($a = 1; $a<=$n; $a++) {\n\tfor ($b=$a; $b<=$n; $b++) {\n\t\t$c = $a^$b;\n\t\tif ($c>=$b && $c<=$n && ($c+$a)>$b && ($a+$b)>$c && ($b+$c)>$a) {\n\t\t\t//echo \"$a, $b, $c, \" . ($a^$b^$c) . \"\\n\";\n\t\t\t$cnt++;\n\t\t}\n\t}\n}\n\necho $cnt;\n", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "d719c47d2a36fde82ba581822cc1d187", "src_uid": "838f2e75fdff0f13f002c0dfff0b2e8d", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($w, $h) = explode(' ', trim(fgets(STDIN)));\nlist($u1, $d1) = explode(' ', trim(fgets(STDIN)));\nlist($u2, $d2) = explode(' ', trim(fgets(STDIN)));\n$res = $w;\nwhile ($h >= 0) {\n    if ($d1 == $h || $d2 == $h) {\n        if ($d1 == $h) {\n            $res = $res - $u1 + $h;\n        }\n        if ($d2 == $h) {\n            $res = $res - $u2 + $h;\n        }\n        if ($res < 0) {\n            $res = 0;\n        }\n    } else {\n        $res += $h;\n    }\n    $h--;\n}\necho $res;\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "77b2082c16cee3ce6020b597f7eceb51", "src_uid": "084a12eb3a708b43b880734f3ee51374", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = fopen('php://stdin', 'r');\n//$in = fopen('khaled.in', 'r');\n\nlist($w, $h) = explode(\" \", rtrim(fgets($in)));\nlist($A1, $B1) = explode(\" \", rtrim(fgets($in)));\nlist($A2, $B2) = explode(\" \", rtrim(fgets($in)));\n\n$now = $w;\n\nfor ($i=$h; $i>0; $i--){\n    $now += $i;\n    if($i == $B1)$now -= $A1;\n    if($i == $B2)$now -= $A2;\n    if($now < 0)$now = 0;\n}\n\necho $now . \"\\n\";\n\nfunction what($x){fprintf(STDERR, $x . \"\\n\");}\n\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "9a0c90629fd7aebf33669b7e1584f92f", "src_uid": "084a12eb3a708b43b880734f3ee51374", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*****************************************/\nclass InputReader {protected $_fh;public function __construct($fileHandler = STDIN){$this->_fh = $fileHandler;}\n\tpublic function readInt() {$d = trim(fgets($this->_fh));return (int)$d;}\n\tpublic function readString() {$d = trim(fgets($this->_fh));return $d;}\n\tpublic function readArrayOfInt($size, $indexFrom = 0) {$a = [];$ind = $indexFrom;foreach (explode(' ', fgets($this->_fh)) as $item) {$a[$ind++] = (int)$item;}return $a;}\n\tpublic function readArrayOfString($size, $indexFrom = 0) {$a = [];$ind = $indexFrom;foreach (explode(' ', fgets($this->_fh)) as $item) {$a[$ind++] = $item;}return $a;}\n}\n\n/* Perform action N times. Can return values in array */\nfunction ntimes($n, $func, $returnResults = false) {$a = [];for ($i=1; $i<=$n; $i++) {$result = $func();if ($returnResults) {$a[$i] = $result;}}return $a;}\n\n/* Integral. Keys preserved. By reference. */\nfunction cumsum(&$a){$sum = 0;foreach($a as $k=>$v) {$a[$k] += $sum;$sum = $a[$k];}}\n\n/* Difference. Keys preserved. By reference. */\nfunction diff(&$a){$prev = 0;foreach($a as $k=>$v) {$buf=$a[$k];$a[$k]-=$prev;$prev = $buf;}}\n\nfunction bitCount($n){$cnt = 0;for ($j=$n; $j; $j>>=1){$cnt += $j&1;}return $cnt;}\n\nclass PrimeUtils {static protected $divisors = [1 => [1=>true],2 => [1=>true, 2=>true],];static protected $primes = []; \n\tstatic public function primes($limit){$a = str_repeat(chr(85), ($limit>>3) + 1);$a[0] = chr(83);for ($i=3; $i*$i < $limit; $i+=2) {if (ord($a[$i>>3]) & (1<<($i%8))) {;} else {for ($k=$i; $k*$i<$limit; $k++) {$n = $k*$i;$a[$n>>3] = chr(ord($a[$n>>3]) | (1<<($n%8)));}}}yield 2;for ($i=3; $i<$limit; $i+=2) {if (!(ord($a[$i>>3]) & (1<<($i%8)))) {yield $i;}}}\n\tstatic public function divisors($n, $lp = 2) {if (isset(self::$divisors[$n])) {return self::$divisors[$n];}if (empty(self::$primes)) {$primes = [];foreach (self::primes(1e3) as $prime) {$primes[$prime] = $prime;}self::$primes = $primes;}$r = [];foreach (self::$primes as $p) {if ($p>=$lp) {if ($n < $p*$p) {$r = [1=>true, $n=>true];break;} elseif ($n%$p==0) {foreach([1, $p] as $pre) {foreach(self::divisors(intdiv($n,$p), $p) as $nxt=>$v) {$r[$nxt*$pre] = true;}}break;}}}self::$divisors[$n] = $r;return self::$divisors[$n];}\n}\n\n/*****************************************/\n\n$ir = new InputReader();\n\n/* TASK */\n\n$n = $ir->readArrayOfInt(2);\n$s1 = $ir->readArrayOfInt(2);\n$s2 = $ir->readArrayOfInt(2);\n\n$v = $n[0];\nfor ($i=$n[1]; $i>=0; $i--) {\n\t$v += $i;\n\tif ($i == $s1[1]) {\n\t\t$v = max(0, $v-$s1[0]);\n\t}\n\tif ($i == $s2[1]) {\n\t\t$v = max(0, $v-$s2[0]);\n\t}\n}\n\necho $v;\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "f5487871e56b1bf4322b53b6015f0365", "src_uid": "084a12eb3a708b43b880734f3ee51374", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str=trim(fgets(STDIN));\n$len=strlen($str);\n$vowel='aeioun';\n$decision=false;\nif (substr_count($vowel,$str[$len-1])==1)\n{\n\tfor ($i=0; $i <$len ; $i++)\n\t{ \n\t\tif (substr_count($vowel,$str[$i])=='0'&&(substr_count($vowel,$str[$i+1])=='0'||$str[$i+1]=='n'))\n\t\t{\n\t\t\t$decision=false;\n\t\t\tbreak;\n\t\t}\n\t\t$decision=true;\n\t}\n\t//$decision=true;\n}\necho $decision==true?'YES':'NO';", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "3c64eba94ed8ff225077b35882915d8b", "src_uid": "a83144ba7d4906b7692456f27b0ef7d4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nini_set('error_reporting', E_ALL & ~E_NOTICE);\n\n$group = array(\"a\", \"i\", \"u\", \"e\", \"o\");\nfscanf(STDIN, \"%s\", $S);\n$arrayS = str_split($S);\n$countS = count($arrayS);\n\n$answer = \"YES\";\nfor ($i = 0; $i < $countS; $i++) {\n\tif ($arrayS[$i] == \"n\") {\n\t\tcontinue;\n\t}\n\n\tif (in_array($arrayS[$i], $group) === false) {\n\t\tif (in_array($arrayS[$i + 1], $group) === false) {\n\t\t\t$answer = \"NO\";\n\t\t}\n\t}\n}\n\necho $answer;\n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "2d2edfbe0dff88905500a00a060d57db", "src_uid": "a83144ba7d4906b7692456f27b0ef7d4", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = ($a * 2) + ($b * 2) + 4 - $c + $c + ($d * 2) - 2 + 2;\nprintf(\"%.0f\", $e);\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "7a3bca7194ef5291c1c2a3e8e0d9437b", "src_uid": "b5d44e0041053c996938aadd1b3865f6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$data = explode(' ', trim(fgets(STDIN)));\n\n$w1 = $data[0];\n$h1 = $data[1];\n$w2 = $data[2];\n$h2 = $data[3];\n\n$s = 2*(max($w1,$w2) + $h1 + $h2) + 4;\n\nfwrite(STDOUT, $s);\n\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "a0d4c72cc157a2874a6df056ff8620f1", "src_uid": "b5d44e0041053c996938aadd1b3865f6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array();\n$c = array();\nfor($x = 0; $x < 4 * $a + 1; $x++)\n{\n     list($d, $e) = explode(\" \", trim(fgets(STDIN)));\n     $b[$x] = $d;\n     $c[$x] = $e;\n}\n$l = array();\n$l2 = array();\n$l3 = array();\n$m = array();\nfor($x = 0; $x < 4 * $a + 1; $x++)\n{\n     $f = $b;\n     $g = $c;\n     array_splice($f, $x, 1);\n     array_splice($g, $x, 1);\n     $h = 100;\n     $i = 100;\n     $j = 0;\n     $k = 0;\n     for($y = 0; $y < 4 * $a; $y++)\n     {\n          if($f[$y] < $h)\n          {\n               $h = $f[$y];\n          }\n          if($g[$y] < $i)\n          {\n               $i = $g[$y];\n          }\n          if($f[$y] > $j)\n          {\n               $j = $f[$y];\n          }\n          if($g[$y] > $k)\n          {\n               $k = $g[$y];\n          }\n     }\n     if(($b[$x] > $h) && ($b[$x] < $j) && ($c[$x] > $i) && ($c[$x] < $k))\n     {\n          $o = $b[$x];\n          $p = $c[$x];\n     }\n     $n = $h . \" \" . $i . \" \" . $j . \" \" . $k;\n     $l[count($l)] = $n;\n     $l2[count($l2)] = $b[$x];\n     $l3[count($l3)] = $c[$x];\n     $m[$n]++;\n}\n$q = array_unique($l);\nif(count($q) == 1)\n{\n     print $o . \" \" . $p;\n}\nelse\n{\n     for($x = 0; $x < 4 * $a + 1; $x++)\n     {\n          if($m[$l[$x]] == 1)\n          {\n               print $l2[$x] . \" \" . $l3[$x];\n               break;\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "00f461eb33e93207b9e4e1b3d0fbeae9", "src_uid": "1f9153088dcba9383b1a2dbe592e4d06", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = array();\nfor($x = 0; $x < 10; $x++)\n{\n     $b = trim(fgets(STDIN));\n     $a[$x] = $b;\n}\n$c = 0;\nfor($x = 0; $x < 10; $x++)\n{\n     $d = $a[$x];\n     for($y = 0; $y < 6; $y++)\n     {\n          $e = 0;\n          $f = 0;\n          for($z = $y; $z < $y + 5; $z++)\n          {\n               if($d[$z] == \"X\")\n               {\n                    $e++;\n               }\n               elseif($d[$z] == \".\")\n               {\n                    $f++;\n               }\n          }\n          if(($e == 4) && ($f == 1))\n          {\n               $c = 1;\n               break;\n          }\n     }\n     if($c == 1)\n     {\n          break;\n     }\n}\nfor($x = 0; $x < 10; $x++)\n{\n     for($y = 0; $y < 6; $y++)\n     {\n          $e = 0;\n          $f = 0;\n          for($z = $y; $z < $y + 5; $z++)\n          {\n               if($a[$z][$x] == \"X\")\n               {\n                    $e++;\n               }\n               elseif($a[$z][$x] == \".\")\n               {\n                    $f++;\n               }\n          }\n          if(($e == 4) && ($f == 1))\n          {\n               $c = 1;\n               break;\n          }\n     }\n     if($c == 1)\n     {\n          break;\n     }\n}\n$g = array();\nfor($x = 0; $x < 10; $x++)\n{\n     $h = $x;\n     $i = 0;\n     $j = array();\n     while(TRUE)\n     {\n          if($h == 0)\n          {\n               $j[count($j)] = $a[$h][$i];\n               break;\n          }\n          else\n          {\n               $j[count($j)] = $a[$h][$i];\n               $h--;\n               $i++;\n          }\n     }\n     if(count($j) >= 5)\n     {\n          $g[count($g)] = $j;\n     }\n}\nfor($x = 9; $x >= 0; $x--)\n{\n     $h = $x;\n     $i = 9;\n     $j = array();\n     while(TRUE)\n     {\n          if($i == $x)\n          {\n               $j[count($j)] = $a[$h][$i];\n               break;\n          }\n          else\n          {\n               $j[count($j)] = $a[$h][$i];\n               $h++;\n               $i--;\n          }\n     }\n     if(count($j) >= 5)\n     {\n          $g[count($g)] = $j;\n     }\n}\nfor($x = 0; $x < count($g); $x++)\n{\n     $d = $g[$x];\n     for($y = 0; $y < 6; $y++)\n     {\n          $e = 0;\n          $f = 0;\n          for($z = $y; $z < $y + 5; $z++)\n          {\n               if($d[$z] == \"X\")\n               {\n                    $e++;\n               }\n               elseif($d[$z] == \".\")\n               {\n                    $f++;\n               }\n          }\n          if(($e == 4) && ($f == 1))\n          {\n               $c = 1;\n               break;\n          }\n     }\n     if($c == 1)\n     {\n          break;\n     }\n}\n$g = array();\nfor($x = 0; $x < 10; $x++)\n{\n     $h = $x;\n     $i = 9;\n     $j = array();\n     while(TRUE)\n     {\n          if($h == 0)\n          {\n               $j[count($j)] = $a[$h][$i];\n               break;\n          }\n          else\n          {\n               $j[count($j)] = $a[$h][$i];\n               $h--;\n               $i--;\n          }\n     }\n     if(count($j) >= 5)\n     {\n          $g[count($g)] = $j;\n     }\n}\nfor($x = 9; $x >= 0; $x--)\n{\n     $h = $x;\n     $i = 0;\n     $j = array();\n     while(TRUE)\n     {\n          if($h == 9)\n          {\n               $j[count($j)] = $a[$h][$i];\n               break;\n          }\n          else\n          {\n               $j[count($j)] = $a[$h][$i];\n               $h++;\n               $i++;\n          }\n     }\n     if(count($j) >= 5)\n     {\n          $g[count($g)] = $j;\n     }\n}\nfor($x = 0; $x < count($g); $x++)\n{\n     $d = $g[$x];\n     for($y = 0; $y < 6; $y++)\n     {\n          $e = 0;\n          $f = 0;\n          for($z = $y; $z < $y + 5; $z++)\n          {\n               if($d[$z] == \"X\")\n               {\n                    $e++;\n               }\n               elseif($d[$z] == \".\")\n               {\n                    $f++;\n               }\n          }\n          if(($e == 4) && ($f == 1))\n          {\n               $c = 1;\n               break;\n          }\n     }\n     if($c == 1)\n     {\n          break;\n     }\n}\nif($c == 1)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "ae37a57ae98bf2a5f466bc4bc9186b9e", "src_uid": "d5541028a2753c758322c440bdbf9ec6", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN , \"%d%d%d%d%d%d\" , $n,$m,$i,$j,$a,$b);\nif(($i==1||$i==$n)&&($j==1||$j==$m)) echo 0;\nelseif($i-1<$a && $n-$i<$a) echo \"Poor Inna and pony!\";\nelseif($j-1<$b && $m-$j<$b) echo \"Poor Inna and pony!\";\nelse {\n    $x1 = ($i-1)%$a==0?($i-1)/$a: 1000000000;\n    $x2 = ($n-$i)%$a==0?($n-$i)/$a:1000000000;\n    $y1 = ($j-1)%$b==0?($j-1)/$b: 1000000000;\n    $y2 = ($m-$j)%$b==0?($m-$j)/$b:1000000000;\n    $x = 1000000000;\n    if($x1%2 ==$y1%2) $x = min($x , max($x1,$y1));\n    if($x1%2 ==$y2%2) $x = min($x , max($x1,$y2));\n    if($x2%2 ==$y1%2) $x = min($x , max($x2,$y1));\n    if($x2%2 ==$y2%2) $x = min($x , max($x2,$y2));\n    if($x==1000000000) echo \"Poor Inna and pony!\";\n    else echo $x;\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "886e2a6f51a898f1f3eb8e6a7f75899a", "src_uid": "51155e9bfa90e0ff29d049cedc3e1862", "difficulty": 2000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\nif(($a == $c) || ($b == $d))\n{\n    print \"1 \";\n}\nelse\n{\n    print \"2 \";\n}\n$e = array(\"1\", \"3\", \"5\", \"7\", \"10\", \"12\", \"14\", \"16\", \"17\", \"19\", \"21\", \"23\", \"26\", \"28\", \"30\", \"32\", \"33\", \"35\", \"37\", \"39\", \"42\", \"44\", \"46\", \"48\", \"49\", \"51\", \"53\", \"55\", \"58\", \"60\", \"62\", \"64\");\n$g = 0;\n$h = 0;\nfor($x = 0; $x < count($e); $x++)\n{\n    if($e[$x] == ((($b - 1) * 8) + $a))\n    {\n        $g = 1;\n    }\n    if($e[$x] == ((($d - 1) * 8) + $c))\n    {\n        $h = 1;\n    }\n}\nif((($g == 0) && ($h == 0)) || (($g == 1) && ($h == 1)))\n{\n    $i = $a;\n    $j = $b;\n    $k = $a;\n    $l = $b;\n    $m = $a;\n    $n = $b;\n    $o = $a;\n    $p = $b;\n    $r = 0;\n    for($x = 1; $x <= 8; $x++)\n    {\n        $i -= 1;\n        $j -= 1;\n        if(($i == $c) && ($j == $d))\n        {\n            $r = 1;\n            break;\n        }\n        $k += 1;\n        $l += 1;\n        if(($k == $c) && ($l == $d))\n        {\n            $r = 1;\n            break;\n        }\n        $m -= 1;\n        $n += 1;\n        if(($m == $c) && ($n == $d))\n        {\n            $r = 1;\n            break;\n        }\n        $o += 1;\n        $p -= 1;\n        if(($o == $c) && ($p == $d))\n        {\n            $r = 1;\n            break;\n        }\n    }\n    if($r == 1)\n    {\n        print \"1 \";\n    }\n    else\n    {\n        print \"2 \";\n    }\n}\nelse\n{\n    print \"0 \";\n}\n$s = max($a, $c) - min($a, $c);\n$t = max($b, $d) - min($b, $d);\nprint max($s, $t);\n?>", "lang_cluster": "PHP", "tags": ["math", "graphs", "shortest paths"], "code_uid": "551d3c18dac87a2133a97fcdefa5c72e", "src_uid": "7dbf58806db185f0fe70c00b60973f4b", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($n, $m) = explode(\" \", trim(fgets(STDIN)));\nfor ($i = 1; $i <= $m; $i++) {\n    list($StreamA[$i], $StreamB[$i]) = explode(\" \", trim(fgets(STDIN)));\n}\nasort($StreamB);\n$StreamB = array_reverse($StreamB, true);\nforeach ($StreamB as $i => $b) {\n    $totalcnt += $StreamA[$i] * $b;\n    $totalkorobok += $StreamA[$i];\n    if ($totalkorobok > $n) {\n        $totalcnt = $totalcnt - ($totalkorobok - $n) * $b;\n        echo $totalcnt;\n        exit();\n    }\n}\necho $totalcnt;\n\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "d05a8fd345f81a8a9bf8a5fa69f8a8c1", "src_uid": "c052d85e402691b05e494b5283d62679", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$nm= explode(\" \",strval(trim(fgets(STDIN))));\n$n = intval($nm[0]);\n$m = intval($nm[1]);\n$containers=[];\n$taked_box_cnt=0;\n$taked_match_cnt=0;\nfor ($i=0; $i < $m; $i++) {\n\t$container = explode(\" \",strval(trim(fgets(STDIN))));\n\t$containers[]=$container;\n}\n\nusort($containers,function ($a,$b){return $a[1]<$b[1];});\n// var_dump($containers);die();\n\nforeach ($containers as $container) {\n\t$box_cnt = $container[0];\n\t$match_cnt = $container[1];\n\tif($taked_box_cnt>=$n) break;\n\t$left_space = $n-$taked_box_cnt;\n\t$taked_box = ($left_space<$box_cnt)?$left_space:$box_cnt;\n\t$taked_box_cnt += $taked_box;\n\t$taked_match_cnt += ($taked_box*$match_cnt);\n\n}\necho $taked_match_cnt;\n", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "177588d95fa54b400add6a025f1b02ab", "src_uid": "c052d85e402691b05e494b5283d62679", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$testCases = fgets(STDIN);\n\n$answers = [];\nfor ($i=0; $i < $testCases; $i++) {\n    $key = (int) fgets(STDIN);\n    $keysBehind = array_map('intval', explode(' ', fgets(STDIN)));\n\n    if (\n        $keysBehind[$key - 1] !== 0\n        && isset($keysBehind[$keysBehind[$key - 1] - 1])\n        && $keysBehind[$keysBehind[$key - 1] - 1] !== 0\n    ) {\n        $answers[] = 'YES';\n    } else {\n        $answers[] = 'NO';\n    }\n}\n\nforeach ($answers as $item) {\n    echo $item . PHP_EOL;\n}\n", "lang_cluster": "PHP", "tags": ["brute force", "greedy", "implementation", "math"], "code_uid": "69174965cfc4332e71146ebec2537c80", "src_uid": "5cd113a30bbbb93d8620a483d4da0349", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\r\n$mod = 1000000007;\r\n$intMaxValue = 2147483646; //2147483647\r\n \r\n$loop = true;\r\n$t = $loop ? IO::get() : 1;\r\nwhile($t--) {\r\n    solve();\r\n}\r\n//101\r\n//101\r\n//001\r\nfunction solve()\r\n{\r\n     $x = IO::get();\r\n    $a = IO::getArray();\r\n    \r\n $ans = 'YES';\r\n \r\n if($a[$x-1] != 0) {\r\n      $x = $a[$x-1];\r\n      if($a[$x-1] != 0) {\r\n           $x = $a[$x-1];\r\n      } else {\r\n           $ans = 'NO';\r\n      }\r\n \r\n } else {\r\n      $ans = 'NO';\r\n }\r\n \r\n     \r\n   IO::pr($ans);\r\n \r\n}\r\n \r\n \r\nclass IO {\r\n    public static function get()\r\n    {\r\n        return trim(fgets(STDIN));\r\n    }\r\n \r\n    public static function getArray()\r\n    {\r\n        return explode(' ', trim(fgets(STDIN)));\r\n    }\r\n    public static function pr($s)\r\n    {\r\n        echo $s, PHP_EOL;\r\n    }\r\n    public static function prArray($s)\r\n    {\r\n        echo implode( ' ', $s), PHP_EOL;\r\n    }\r\n    public static function getMinValue($x, $y) {\r\n        return $x > $y ? $y : $x;\r\n    }\r\n    public static function getMaxValue($x, $y) {\r\n        return $x > $y ? $x : $y;\r\n    }\r\n}", "lang_cluster": "PHP", "tags": ["brute force", "greedy", "implementation", "math"], "code_uid": "6fd755684b0d983e510bf207fdda4fbd", "src_uid": "5cd113a30bbbb93d8620a483d4da0349", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = explode(\" \", trim(fgets(STDIN)));\n$e = 0;\n$f = 0;\n$g = $a - 1;\n$h = $a % 2;\nif($h == 0)\n{\n     for($x = 0; $x < floor($a / 2); $x++)\n     {\n          if($d[$x] == 0)\n          {\n               if($d[$g] == 0)\n               {\n                    $g--;\n               }\n               elseif($d[$g] == 1)\n               {\n                    $e = 1;\n                    break;\n               }\n               elseif($d[$g] == 2)\n               {\n                    $f += $b;\n                    $g--;\n               }\n          }\n          elseif($d[$x] == 1)\n          {\n               if($d[$g] == 0)\n               {\n                    $e = 1;\n                    break;\n               }\n               elseif($d[$g] == 1)\n               {\n                    $g--;\n               }\n               elseif($d[$g] == 2)\n               {\n                    $f += $c;\n                    $g--;\n               }\n          }\n          elseif($d[$x] == 2)\n          {\n               if($d[$g] == 0)\n               {\n                    $f += $b;\n                    $g--;\n               }\n               elseif($d[$g] == 1)\n               {\n                    $f += $c;\n                    $g--;\n               }\n               elseif($d[$g] == 2)\n               {\n                    $f += min($b, $c);\n                    $f += min($b, $c);\n                    $g--;\n               }\n          }\n     }\n}\nelse\n{\n     if($d[floor($a / 2)] == 2)\n     {\n          if($b < $c)\n          {\n               $f += $b;\n          }\n          else\n          {\n               $f += $c;\n          }\n     }\n     for($x = 0; $x < floor($a / 2); $x++)\n     {\n          if($d[$x] == 0)\n          {\n               if($d[$g] == 0)\n               {\n                    $g--;\n               }\n               elseif($d[$g] == 1)\n               {\n                    $e = 1;\n                    break;\n               }\n               elseif($d[$g] == 2)\n               {\n                    $f += $b;\n                    $g--;\n               }\n          }\n          elseif($d[$x] == 1)\n          {\n               if($d[$g] == 0)\n               {\n                    $e = 1;\n                    break;\n               }\n               elseif($d[$g] == 1)\n               {\n                    $g--;\n               }\n               elseif($d[$g] == 2)\n               {\n                    $f += $c;\n                    $g--;\n               }\n          }\n          elseif($d[$x] == 2)\n          {\n               if($d[$g] == 0)\n               {\n                    $f += $b;\n                    $g--;\n               }\n               elseif($d[$g] == 1)\n               {\n                    $f += $c;\n                    $g--;\n               }\n               elseif($d[$g] == 2)\n               {\n                    $f += min($b, $c);\n                    $f += min($b, $c);\n                    $g--;\n               }\n          }\n     }\n}\nif($e == 0)\n{\n     print $f;\n}\nelse\n{\n     print \"-1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "7e32c070b5d55170724b85d948deb412", "src_uid": "af07223819aeb5bd6ded4340c472b2b6", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = explode(\" \", trim(fgets(STDIN)));\n$f = 0;\nif($a > 1)\n{\n     for($x = 0; $x < $a - 1; $x++)\n     {\n          for($x2 = $x + 1; $x2 < $a; $x2++)\n          {\n               $g = $e[$x] + $e[$x2];\n               $h = min($e[$x], $e[$x2]);\n               $i = max($e[$x], $e[$x2]);\n               $j = $i - $h;\n               if(($g >= $b) && ($g <= $c) && ($j >= $d))\n               {\n                    $f++;\n               }\n          }\n     }\n     if($a > 2)\n     {\n          for($x = 0; $x < $a - 2; $x++)\n          {\n               for($x2 = $x + 1; $x2 < $a - 1; $x2++)\n               {\n                    for($x3 = $x2 + 1; $x3 < $a; $x3++)\n                    {\n                         $g = $e[$x] + $e[$x2] + $e[$x3];\n                         $h = min($e[$x], $e[$x2], $e[$x3]);\n                         $i = max($e[$x], $e[$x2], $e[$x3]);\n                         $j = $i - $h;\n                         if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                         {\n                              $f++;\n                         }\n                    }\n               }\n          }\n          if($a > 3)\n          {\n               for($x = 0; $x < $a - 3; $x++)\n               {\n                    for($x2 = $x + 1; $x2 < $a - 2; $x2++)\n                    {\n                         for($x3 = $x2 + 1; $x3 < $a - 1; $x3++)\n                         {\n                              for($x4 = $x3 + 1; $x4 < $a; $x4++)\n                              {\n                                   $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4];\n                                   $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4]);\n                                   $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4]);\n                                   $j = $i - $h;\n                                   if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                   {\n                                        $f++;\n                                   }\n                              }\n                         }\n                    }\n               }\n               if($a > 4)\n               {\n                    for($x = 0; $x < $a - 4; $x++)\n                    {\n                         for($x2 = $x + 1; $x2 < $a - 3; $x2++)\n                         {\n                              for($x3 = $x2 + 1; $x3 < $a - 2; $x3++)\n                              {\n                                   for($x4 = $x3 + 1; $x4 < $a - 1; $x4++)\n                                   {\n                                        for($x5 = $x4 + 1; $x5 < $a; $x5++)\n                                        {\n                                             $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4] + $e[$x5];\n                                             $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5]);\n                                             $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5]);\n                                             $j = $i - $h;\n                                             if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                             {\n                                                  $f++;\n                                             }\n                                        }\n                                   }\n                              }\n                         }\n                    }\n                    if($a > 5)\n                    {\n                         for($x = 0; $x < $a - 5; $x++)\n                         {\n                              for($x2 = $x + 1; $x2 < $a - 4; $x2++)\n                              {\n                                   for($x3 = $x2 + 1; $x3 < $a - 3; $x3++)\n                                   {\n                                        for($x4 = $x3 + 1; $x4 < $a - 2; $x4++)\n                                        {\n                                             for($x5 = $x4 + 1; $x5 < $a - 1; $x5++)\n                                             {\n                                                  for($x6 = $x5 + 1; $x6 < $a; $x6++)\n                                                  {\n                                                       $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4] + $e[$x5] + $e[$x6];\n                                                       $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6]);\n                                                       $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6]);\n                                                       $j = $i - $h;\n                                                       if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                                       {\n                                                            $f++;\n                                                       }\n                                                  }\n                                             }\n                                        }\n                                   }\n                              }\n                         }\n                         if($a > 6)\n                         {\n                              for($x = 0; $x < $a - 6; $x++)\n                              {\n                                   for($x2 = $x + 1; $x2 < $a - 5; $x2++)\n                                   {\n                                        for($x3 = $x2 + 1; $x3 < $a - 4; $x3++)\n                                        {\n                                             for($x4 = $x3 + 1; $x4 < $a - 3; $x4++)\n                                             {\n                                                  for($x5 = $x4 + 1; $x5 < $a - 2; $x5++)\n                                                  {\n                                                       for($x6 = $x5 + 1; $x6 < $a - 1; $x6++)\n                                                       {\n                                                            for($x7 = $x6 + 1; $x7 < $a; $x7++)\n                                                            {\n                                                                 $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4] + $e[$x5] + $e[$x6] + $e[$x7];\n                                                                 $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7]);\n                                                                 $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7]);\n                                                                 $j = $i - $h;\n                                                                 if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                                                 {\n                                                                      $f++;\n                                                                 }\n                                                            }\n                                                       }\n                                                  }\n                                             }\n                                        }\n                                   }\n                              }\n                              if($a > 7)\n                              {\n                                   for($x = 0; $x < $a - 7; $x++)\n                                   {\n                                        for($x2 = $x + 1; $x2 < $a - 6; $x2++)\n                                        {\n                                             for($x3 = $x2 + 1; $x3 < $a - 5; $x3++)\n                                             {\n                                                  for($x4 = $x3 + 1; $x4 < $a - 4; $x4++)\n                                                  {\n                                                       for($x5 = $x4 + 1; $x5 < $a - 3; $x5++)\n                                                       {\n                                                            for($x6 = $x5 + 1; $x6 < $a - 2; $x6++)\n                                                            {\n                                                                 for($x7 = $x6 + 1; $x7 < $a - 1; $x7++)\n                                                                 {\n                                                                      for($x8 = $x7 + 1; $x8 < $a; $x8++)\n                                                                      {\n                                                                           $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4] + $e[$x5] + $e[$x6] + $e[$x7] + $e[$x8];\n                                                                           $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8]);\n                                                                           $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8]);\n                                                                           $j = $i - $h;\n                                                                           if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                                                           {\n                                                                                $f++;\n                                                                           }\n                                                                      }\n                                                                 }\n                                                            }\n                                                       }\n                                                  }\n                                             }\n                                        }\n                                   }\n                                   if($a > 8)\n                                   {\n                                        for($x = 0; $x < $a - 8; $x++)\n                                        {\n                                             for($x2 = $x + 1; $x2 < $a - 7; $x2++)\n                                             {\n                                                  for($x3 = $x2 + 1; $x3 < $a - 6; $x3++)\n                                                  {\n                                                       for($x4 = $x3 + 1; $x4 < $a - 5; $x4++)\n                                                       {\n                                                            for($x5 = $x4 + 1; $x5 < $a - 4; $x5++)\n                                                            {\n                                                                 for($x6 = $x5 + 1; $x6 < $a - 3; $x6++)\n                                                                 {\n                                                                      for($x7 = $x6 + 1; $x7 < $a - 2; $x7++)\n                                                                      {\n                                                                           for($x8 = $x7 + 1; $x8 < $a - 1; $x8++)\n                                                                           {\n                                                                                for($x9 = $x8 + 1; $x9 < $a; $x9++)\n                                                                                {\n                                                                                     $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4] + $e[$x5] + $e[$x6] + $e[$x7] + $e[$x8] + $e[$x9];\n                                                                                     $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9]);\n                                                                                     $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9]);\n                                                                                     $j = $i - $h;\n                                                                                     if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                                                                     {\n                                                                                          $f++;\n                                                                                     }\n                                                                                }\n                                                                           }\n                                                                      }\n                                                                 }\n                                                            }\n                                                       }\n                                                  }\n                                             }\n                                        }\n                                        if($a > 9)\n                                        {\n                                             for($x = 0; $x < $a - 9; $x++)\n                                             {\n                                                  for($x2 = $x + 1; $x2 < $a - 8; $x2++)\n                                                  {\n                                                       for($x3 = $x2 + 1; $x3 < $a - 7; $x3++)\n                                                       {\n                                                            for($x4 = $x3 + 1; $x4 < $a - 6; $x4++)\n                                                            {\n                                                                 for($x5 = $x4 + 1; $x5 < $a - 5; $x5++)\n                                                                 {\n                                                                      for($x6 = $x5 + 1; $x6 < $a - 4; $x6++)\n                                                                      {\n                                                                           for($x7 = $x6 + 1; $x7 < $a - 3; $x7++)\n                                                                           {\n                                                                                for($x8 = $x7 + 1; $x8 < $a - 2; $x8++)\n                                                                                {\n                                                                                     for($x9 = $x8 + 1; $x9 < $a - 1; $x9++)\n                                                                                     {\n                                                                                          for($x10 = $x9 + 1; $x10 < $a; $x10++)\n                                                                                          {\n                                                                                               $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4] + $e[$x5] + $e[$x6] + $e[$x7] + $e[$x8] + $e[$x9] + $e[$x10];\n                                                                                               $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10]);\n                                                                                               $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10]);\n                                                                                               $j = $i - $h;\n                                                                                               if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                                                                               {\n                                                                                                    $f++;\n                                                                                               }\n                                                                                          }\n                                                                                     }\n                                                                                }\n                                                                           }\n                                                                      }\n                                                                 }\n                                                            }\n                                                       }\n                                                  }\n                                             }\n                                             if($a > 10)\n                                             {\n                                                  for($x = 0; $x < $a - 10; $x++)\n                                                  {\n                                                       for($x2 = $x + 1; $x2 < $a - 9; $x2++)\n                                                       {\n                                                            for($x3 = $x2 + 1; $x3 < $a - 8; $x3++)\n                                                            {\n                                                                 for($x4 = $x3 + 1; $x4 < $a - 7; $x4++)\n                                                                 {\n                                                                      for($x5 = $x4 + 1; $x5 < $a - 6; $x5++)\n                                                                      {\n                                                                           for($x6 = $x5 + 1; $x6 < $a - 5; $x6++)\n                                                                           {\n                                                                                for($x7 = $x6 + 1; $x7 < $a - 4; $x7++)\n                                                                                {\n                                                                                     for($x8 = $x7 + 1; $x8 < $a - 3; $x8++)\n                                                                                     {\n                                                                                          for($x9 = $x8 + 1; $x9 < $a - 2; $x9++)\n                                                                                          {\n                                                                                               for($x10 = $x9 + 1; $x10 < $a - 1; $x10++)\n                                                                                               {\n                                                                                                    for($x11 = $x10 + 1; $x11 < $a; $x11++)\n                                                                                                    {\n                                                                                                         $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4] + $e[$x5] + $e[$x6] + $e[$x7] + $e[$x8] + $e[$x9] + $e[$x10] + $e[$x11];\n                                                                                                         $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10], $e[$x11]);\n                                                                                                         $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10], $e[$x11]);\n                                                                                                         $j = $i - $h;\n                                                                                                         if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                                                                                         {\n                                                                                                              $f++;\n                                                                                                         }\n                                                                                                    }\n                                                                                               }\n                                                                                          }\n                                                                                     }\n                                                                                }\n                                                                           }\n                                                                      }\n                                                                 }\n                                                            }\n                                                       }\n                                                  }\n                                                  if($a > 11)\n                                                  {\n                                                       for($x = 0; $x < $a - 11; $x++)\n                                                       {\n                                                            for($x2 = $x + 1; $x2 < $a - 10; $x2++)\n                                                            {\n                                                                 for($x3 = $x2 + 1; $x3 < $a - 9; $x3++)\n                                                                 {\n                                                                      for($x4 = $x3 + 1; $x4 < $a - 8; $x4++)\n                                                                      {\n                                                                           for($x5 = $x4 + 1; $x5 < $a - 7; $x5++)\n                                                                           {\n                                                                                for($x6 = $x5 + 1; $x6 < $a - 6; $x6++)\n                                                                                {\n                                                                                     for($x7 = $x6 + 1; $x7 < $a - 5; $x7++)\n                                                                                     {\n                                                                                          for($x8 = $x7 + 1; $x8 < $a - 4; $x8++)\n                                                                                          {\n                                                                                               for($x9 = $x8 + 1; $x9 < $a - 3; $x9++)\n                                                                                               {\n                                                                                                    for($x10 = $x9 + 1; $x10 < $a - 2; $x10++)\n                                                                                                    {\n                                                                                                         for($x11 = $x10 + 1; $x11 < $a - 1; $x11++)\n                                                                                                         {\n                                                                                                              for($x12 = $x11 + 1; $x12 < $a; $x12++)\n                                                                                                              {\n                                                                                                                   $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4] + $e[$x5] + $e[$x6] + $e[$x7] + $e[$x8] + $e[$x9] + $e[$x10] + $e[$x11] + $e[$x12];\n                                                                                                                   $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10], $e[$x11], $e[$x12]);\n                                                                                                                   $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10], $e[$x11], $e[$x12]);\n                                                                                                                   $j = $i - $h;\n                                                                                                                   if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                                                                                                   {\n                                                                                                                        $f++;\n                                                                                                                   }\n                                                                                                              }\n                                                                                                         }\n                                                                                                    }\n                                                                                               }\n                                                                                          }\n                                                                                     }\n                                                                                }\n                                                                           }\n                                                                      }\n                                                                 }\n                                                            }\n                                                       }\n                                                       if($a > 12)\n                                                       {\n                                                            for($x = 0; $x < $a - 12; $x++)\n                                                            {\n                                                                 for($x2 = $x + 1; $x2 < $a - 11; $x2++)\n                                                                 {\n                                                                      for($x3 = $x2 + 1; $x3 < $a - 10; $x3++)\n                                                                      {\n                                                                           for($x4 = $x3 + 1; $x4 < $a - 9; $x4++)\n                                                                           {\n                                                                                for($x5 = $x4 + 1; $x5 < $a - 8; $x5++)\n                                                                                {\n                                                                                     for($x6 = $x5 + 1; $x6 < $a - 7; $x6++)\n                                                                                     {\n                                                                                          for($x7 = $x6 + 1; $x7 < $a - 6; $x7++)\n                                                                                          {\n                                                                                               for($x8 = $x7 + 1; $x8 < $a - 5; $x8++)\n                                                                                               {\n                                                                                                    for($x9 = $x8 + 1; $x9 < $a - 4; $x9++)\n                                                                                                    {\n                                                                                                         for($x10 = $x9 + 1; $x10 < $a - 3; $x10++)\n                                                                                                         {\n                                                                                                              for($x11 = $x10 + 1; $x11 < $a - 2; $x11++)\n                                                                                                              {\n                                                                                                                   for($x12 = $x11 + 1; $x12 < $a - 1; $x12++)\n                                                                                                                   {\n                                                                                                                        for($x13 = $x12 + 1; $x13 < $a; $x13++)\n                                                                                                                        {\n                                                                                                                             $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4] + $e[$x5] + $e[$x6] + $e[$x7] + $e[$x8] + $e[$x9] + $e[$x10] + $e[$x11] + $e[$x12] + $e[$x13];\n                                                                                                                             $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10], $e[$x11], $e[$x12], $e[$x13]);\n                                                                                                                             $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10], $e[$x11], $e[$x12], $e[$x13]);\n                                                                                                                             $j = $i - $h;\n                                                                                                                             if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                                                                                                             {\n                                                                                                                                  $f++;\n                                                                                                                             }\n                                                                                                                        }\n                                                                                                                   }\n                                                                                                              }\n                                                                                                         }\n                                                                                                    }\n                                                                                               }\n                                                                                          }\n                                                                                     }\n                                                                                }\n                                                                           }\n                                                                      }\n                                                                 }\n                                                            }\n                                                            if($a > 13)\n                                                            {\n                                                                 for($x = 0; $x < $a - 13; $x++)\n                                                                 {\n                                                                      for($x2 = $x + 1; $x2 < $a - 12; $x2++)\n                                                                      {\n                                                                           for($x3 = $x2 + 1; $x3 < $a - 11; $x3++)\n                                                                           {\n                                                                                for($x4 = $x3 + 1; $x4 < $a - 10; $x4++)\n                                                                                {\n                                                                                     for($x5 = $x4 + 1; $x5 < $a - 9; $x5++)\n                                                                                     {\n                                                                                          for($x6 = $x5 + 1; $x6 < $a - 8; $x6++)\n                                                                                          {\n                                                                                               for($x7 = $x6 + 1; $x7 < $a - 7; $x7++)\n                                                                                               {\n                                                                                                    for($x8 = $x7 + 1; $x8 < $a - 6; $x8++)\n                                                                                                    {\n                                                                                                         for($x9 = $x8 + 1; $x9 < $a - 5; $x9++)\n                                                                                                         {\n                                                                                                              for($x10 = $x9 + 1; $x10 < $a - 4; $x10++)\n                                                                                                              {\n                                                                                                                   for($x11 = $x10 + 1; $x11 < $a - 3; $x11++)\n                                                                                                                   {\n                                                                                                                        for($x12 = $x11 + 1; $x12 < $a - 2; $x12++)\n                                                                                                                        {\n                                                                                                                             for($x13 = $x12 + 1; $x13 < $a - 1; $x13++)\n                                                                                                                             {\n                                                                                                                                  for($x14 = $x13 + 1; $x14 < $a; $x14++)\n                                                                                                                                  {\n                                                                                                                                       $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4] + $e[$x5] + $e[$x6] + $e[$x7] + $e[$x8] + $e[$x9] + $e[$x10] + $e[$x11] + $e[$x12] + $e[$x13] + $e[$x14];\n                                                                                                                                       $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10], $e[$x11], $e[$x12], $e[$x13], $e[$x14]);\n                                                                                                                                       $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10], $e[$x11], $e[$x12], $e[$x13], $e[$x14]);\n                                                                                                                                       $j = $i - $h;\n                                                                                                                                       if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                                                                                                                       {\n                                                                                                                                            $f++;\n                                                                                                                                       }\n                                                                                                                                  }\n                                                                                                                             }\n                                                                                                                        }\n                                                                                                                   }\n                                                                                                              }\n                                                                                                         }\n                                                                                                    }\n                                                                                               }\n                                                                                          }\n                                                                                     }\n                                                                                }\n                                                                           }\n                                                                      }\n                                                                 }\n                                                                 if($a > 14)\n                                                                 {\n                                                                      for($x = 0; $x < $a - 14; $x++)\n                                                                      {\n                                                                           for($x2 = $x + 1; $x2 < $a - 13; $x2++)\n                                                                           {\n                                                                                for($x3 = $x2 + 1; $x3 < $a - 12; $x3++)\n                                                                                {\n                                                                                     for($x4 = $x3 + 1; $x4 < $a - 11; $x4++)\n                                                                                     {\n                                                                                          for($x5 = $x4 + 1; $x5 < $a - 10; $x5++)\n                                                                                          {\n                                                                                               for($x6 = $x5 + 1; $x6 < $a - 9; $x6++)\n                                                                                               {\n                                                                                                    for($x7 = $x6 + 1; $x7 < $a - 8; $x7++)\n                                                                                                    {\n                                                                                                         for($x8 = $x7 + 1; $x8 < $a - 7; $x8++)\n                                                                                                         {\n                                                                                                              for($x9 = $x8 + 1; $x9 < $a - 6; $x9++)\n                                                                                                              {\n                                                                                                                   for($x10 = $x9 + 1; $x10 < $a - 5; $x10++)\n                                                                                                                   {\n                                                                                                                        for($x11 = $x10 + 1; $x11 < $a - 4; $x11++)\n                                                                                                                        {\n                                                                                                                             for($x12 = $x11 + 1; $x12 < $a - 3; $x12++)\n                                                                                                                             {\n                                                                                                                                  for($x13 = $x12 + 1; $x13 < $a - 2; $x13++)\n                                                                                                                                  {\n                                                                                                                                       for($x14 = $x13 + 1; $x14 < $a - 1; $x14++)\n                                                                                                                                       {\n                                                                                                                                            for($x15 = $x14 + 1; $x15 < $a; $x15++)\n                                                                                                                                            {\n                                                                                                                                                 $g = $e[$x] + $e[$x2] + $e[$x3] + $e[$x4] + $e[$x5] + $e[$x6] + $e[$x7] + $e[$x8] + $e[$x9] + $e[$x10] + $e[$x11] + $e[$x12] + $e[$x13] + $e[$x14] + $e[$x15];\n                                                                                                                                                 $h = min($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10], $e[$x11], $e[$x12], $e[$x13], $e[$x14], $e[$x15]);\n                                                                                                                                                 $i = max($e[$x], $e[$x2], $e[$x3], $e[$x4], $e[$x5], $e[$x6], $e[$x7], $e[$x8], $e[$x9], $e[$x10], $e[$x11], $e[$x12], $e[$x13], $e[$x14], $e[$x15]);\n                                                                                                                                                 $j = $i - $h;\n                                                                                                                                                 if(($g >= $b) && ($g <= $c) && ($j >= $d))\n                                                                                                                                                 {\n                                                                                                                                                      $f++;\n                                                                                                                                                 }\n                                                                                                                                            }\n                                                                                                                                       }\n                                                                                                                                  }\n                                                                                                                             }\n                                                                                                                        }\n                                                                                                                   }\n                                                                                                              }\n                                                                                                         }\n                                                                                                    }\n                                                                                               }\n                                                                                          }\n                                                                                     }\n                                                                                }\n                                                                           }\n                                                                      }\n                                                                      print $f;\n                                                                 }\n                                                                 else\n                                                                 {\n                                                                      print $f;\n                                                                 }\n                                                            }\n                                                            else\n                                                            {\n                                                                 print $f;\n                                                            }\n                                                       }\n                                                       else\n                                                       {\n                                                            print $f;\n                                                       }\n                                                  }\n                                                  else\n                                                  {\n                                                       print $f;\n                                                  }\n                                             }\n                                             else\n                                             {\n                                                  print $f;\n                                             }\n                                        }\n                                        else\n                                        {\n                                             print $f;\n                                        }\n                                   }\n                                   else\n                                   {\n                                        print $f;\n                                   }\n                              }\n                              else\n                              {\n                                   print $f;\n                              }\n                         }\n                         else\n                         {\n                              print $f;\n                         }\n                    }\n                    else\n                    {\n                         print $f;\n                    }\n               }\n               else\n               {\n                    print $f;\n               }\n          }\n          else\n          {\n               print $f;\n          }\n     }\n     else\n     {\n          print $f;\n     }\n}\nelse\n{\n     print $f;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "bitmasks"], "code_uid": "2563923e1ec4e60532c0f2cf7340b55c", "src_uid": "0d43104a0de924cdcf8e4aced5aa825d", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = \"abcdefgh\";\n$f = array(\" \", \"11\", \"12\", \"13\", \"14\", \"15\", \"16\", \"17\", \"18\", \"21\", \"22\", \"23\", \"24\", \"25\", \"26\", \"27\", \"28\", \"31\", \"32\", \"33\", \"34\", \"35\", \"36\", \"37\", \"38\", \"41\", \"42\", \"43\", \"44\", \"45\", \"46\", \"47\", \"48\", \"51\", \"52\", \"53\", \"54\", \"55\", \"56\", \"57\", \"58\", \"61\", \"62\", \"63\", \"64\", \"65\", \"66\", \"67\", \"68\", \"71\", \"72\", \"73\", \"74\", \"75\", \"76\", \"77\", \"78\", \"81\", \"82\", \"83\", \"84\", \"85\", \"86\", \"87\", \"88\");\nfor($x = 0; $x < strlen($c); $x++)\n{\n    if($a[0] == $c[$x])\n    {\n        $d = ($x + 1) . $a[1];\n    }\n    if($b[0] == $c[$x])\n    {\n        $e = ($x + 1) . $b[1];\n    }\n}\nfor($x = 1; $x <= 8; $x++)\n{\n    $g = $d[0] . $x;\n    $h = array_search($g, $f);\n    unset($f[$h]);\n    $i = $x . $d[1];\n    $j = array_search($i, $f);\n    unset($f[$j]);\n}\n$k = ($d[0] + 1) . ($d[1] + 2);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($d[0] + 2) . ($d[1] + 1);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($d[0] + 2) . ($d[1] - 1);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($d[0] + 1) . ($d[1] - 2);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($d[0] - 1) . ($d[1] - 2);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($d[0] - 2) . ($d[1] - 1);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($d[0] - 2) . ($d[1] + 1);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($d[0] - 1) . ($d[1] + 2);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($e[0] + 1) . ($e[1] + 2);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($e[0] + 2) . ($e[1] + 1);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($e[0] + 2) . ($e[1] - 1);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($e[0] + 1) . ($e[1] - 2);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($e[0] - 1) . ($e[1] - 2);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($e[0] - 2) . ($e[1] - 1);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($e[0] - 2) . ($e[1] + 1);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = ($e[0] - 1) . ($e[1] + 2);\n$l = array_search($k, $f);\nunset($f[$l]);\n$k = $e;\n$l = array_search($k, $f);\nunset($f[$l]);\nprint count($f);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "987628cd9a33d409ae9b7271476e8134", "src_uid": "073023c6b72ce923df2afd6130719cfc", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$b2 = $b;\n$e = $c * 2;\n$f = ($a - $c) * 2;\n$g = 0;\n$h = 0;\n$i = 0;\nfor($x = 1; $x < 100000; $x++)\n{\n     if($x == 1)\n     {\n          if($b > $c)\n          {\n               $b -= $c;\n               if($d == 1)\n               {\n                    if($b < $a - $c)\n                    {\n                         if($b2 < $a - $c)\n                         {\n                              $g = 1;\n                         }\n                         elseif($b2 > $a - $c)\n                         {\n                              $h++;\n                         }\n                         break;\n                    }\n               }\n          }\n          elseif($b == $c)\n          {\n               $b = $b2;\n               if($d == 1)\n               {\n                    if($b < $a - $c)\n                    {\n                         $g = 1;\n                         break;\n                    }\n               }\n               $h++;\n          }\n          elseif($b < $c)\n          {\n               $g = 1;\n               break;\n          }\n     }\n     else\n     {\n          $j = $i % 2;\n          $i++;\n          if($j == 0)\n          {\n               if($x == $d + 1)\n               {\n                    if($f / 2 > $b)\n                    {\n                         $b = $b2;\n                         $h++;\n                    }\n                    break;\n               }\n               else\n               {\n                    if($f > $b)\n                    {\n                         $b = $b2;\n                         if($b < $f)\n                         {\n                              $g = 1;\n                              break;\n                         }\n                         $h++;\n                    }\n                    $b -= $f;\n               }\n          }\n          else\n          {\n               if($x == $d + 1)\n               {\n                    if($e / 2 > $b)\n                    {\n                         $b = $b2;\n                         $h++;\n                    }\n                    break;\n               }\n               else\n               {\n                    if($e > $b)\n                    {\n                         $b = $b2;\n                         if($b < $e)\n                         {\n                              $g = 1;\n                              break;\n                         }\n                         $h++;\n                    }\n                    $b -= $e;\n               }\n          }\n     }\n}\nif($g == 0)\n{\n     print $h;\n}\nelse\n{\n     print \"-1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation"], "code_uid": "ac105b1482be97a8dfa00b022b947283", "src_uid": "283aff24320c6518e8518d4b045e1eca", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$x = trim(fgets(STDIN));\n\n$xLen = strlen($x);\n\n$xResult = $x;\n$xMax = '';\n\nfunction findLast9StreakPosition($number){\n    $position = 0;\n    $numberLen = strlen($number);\n    for($i = 1; $i < $numberLen; ++$i){\n        if($number[$i] < 9){\n            break;\n        }\n        $position = $i;\n    }\n\n    return $position;\n}\n\nif($xLen > 1){\n    if($x[0] > 1){\n        if($x[1] == 9){\n            $last9StreakPosition = findLast9StreakPosition($x);\n            $xMax .= $x[0];\n            $xMax .= str_repeat('9', $last9StreakPosition);\n\n            $xMaxLen = strlen($xMax);\n            if($xLen > $xMaxLen){\n                $xMax[$last9StreakPosition] = $xMax[$last9StreakPosition] - 1;\n                $xMax .= str_repeat('9', $xLen - $xMaxLen);\n            }\n        }else{\n            $xMax = $x[0] - 1;\n            $xMax .= str_repeat('9', $xLen - 1);\n        }\n\n        $xMaxSum = array_sum(str_split($xMax));\n        $xSum = array_sum(str_split($x));\n\n        if($xMaxSum > $xSum){\n            $xResult = $xMax;\n        }\n    }else{\n        if($x[1] > 0){\n            if($x[1] < 8){\n                $xMax = $x[0] - 1;\n                $xMax .= str_repeat('9', $xLen - 1);\n                $xMax = (string)intval($xMax);\n            }\n            else{\n                if($x[1] == 9){\n                    $last9StreakPosition = findLast9StreakPosition($x);\n                    $xMax .= $x[0];\n                    $xMax .= str_repeat('9', $last9StreakPosition);\n\n                    $xMaxLen = strlen($xMax);\n                    if($xLen > $xMaxLen){\n                        $xMax[$last9StreakPosition] = $xMax[$last9StreakPosition] - 1;\n                        $xMax .= str_repeat('9', $xLen - $xMaxLen);\n                    }\n                }else{\n                    $xMax = $x[0] - 1;\n                    $xMax .= str_repeat('9', $xLen - 1);\n                    $xMax = (string)intval($xMax);\n                }\n            }\n\n            $xMaxSum = array_sum(str_split($xMax));\n            $xSum = array_sum(str_split($x));\n\n            if($xMaxSum > $xSum){\n                $xResult = $xMax;\n            }\n        }else{\n            $xMax .= str_repeat('9', $xLen - 1);\n\n            $xMaxSum = array_sum(str_split($xMax));\n            $xSum = array_sum(str_split($x));\n\n            if($xMaxSum > $xSum){\n                $xResult = $xMax;\n            }\n        }\n    }\n}\n\necho $xResult.PHP_EOL;\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "439ce4618b95dbe470b8d88b10bed60d", "src_uid": "e55b0debbf33c266091e6634494356b8", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif(strlen($a) == 1)\n{\n     print $a;\n}\nelseif(strlen($a) == 2)\n{\n     $b = str_split($a);\n     $c = array_sum($b);\n     $d[0] = $b[0] - 1;\n     for($x = 1; $x < strlen($a); $x++)\n     {\n          $d[$x] = 9;\n     }\n     if($d[0] == 0)\n     {\n          $d = array_slice($d, 1);\n     }\n     $e = array_sum($d);\n     if($e > $c)\n     {\n          print implode($d);\n     }\n     else\n     {\n          print implode($b);\n     }\n}\nelseif(strlen($a) > 2)\n{\n     $b = str_split($a);\n     $c = array_sum($b);\n     $d[0] = $b[0] - 1;\n     for($x = 1; $x < strlen($a); $x++)\n     {\n          $d[$x] = 9;\n     }\n     \n     $e = array_sum($d);\n     if($e > $c)\n     {\n          $f = $d;\n          $f[0]++;\n          $f[1]--;\n          if(implode($f) < $a)\n          {\n               for($x = 1; $x < strlen($a) - 1; $x++)\n               {\n                    $g = $f[$x];\n                    $h = $f[$x + 1];\n                    $f[$x] = $h;\n                    $f[$x + 1] = $g;\n                    if(implode($f) >= $a)\n                    {\n                         $f[$x] = $g;\n                         $f[$x + 1] = $h;\n                         if($f[0] == 0)\n                         {\n                              $f = array_slice($f, 1);\n                         }\n                         print implode($f);\n                         break;\n                    }\n               }\n          }\n          else\n          {\n               if($d[0] == 0)\n               {\n                    $d = array_slice($d, 1);\n               }\n               print implode($d);\n          }\n     }\n     else\n     {\n          if($b[0] == 0)\n          {\n               $b = array_slice($b, 1);\n          }\n          print implode($b);\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "eb69f56b22ce6f8bc8bc559c0b00dab2", "src_uid": "e55b0debbf33c266091e6634494356b8", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// Retrieve input and show output\n$stream = fopen(\"php://stdin\", \"r\");\n$input = stream_get_contents($stream);\necho func($input);\n\n// Actual function\nfunction func($in) {\n$ins = explode(\" \", $in);\n$k = $ins[0];\n$b = $ins[1];\n$n = $ins[2];\n$t = $ins[3];\n\n$num = 1;\n$sec = 0;\nwhile ($num <= $t) {\n\t$num = $k * $num + $b;\n\t$sec++;\n}\nreturn ((($n - $sec + 1) < 0) ? 0 : ($n - $sec + 1));\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "34f1002e1284ebe349b50707567e8fcb", "src_uid": "e2357a1f54757bce77dce625772e4f18", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(1 => 1, 2 => 2);\n$c = 2;\nfor($x = 3; $x <= 100; $x++)\n{\n     $b[$x] = $b[$x - 1] + $c;\n     $b[$x + 1] = $b[$x] + $c;\n     $c++;\n     $x++;\n}\nprint $b[$a];\n?>", "lang_cluster": "PHP", "tags": ["math", "constructive algorithms"], "code_uid": "e5acf907914de7b336aba103430befff", "src_uid": "f8af5dfcf841a7f105ac4c144eb51319", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$_fp = fopen(\"php://stdin\", \"r\");\n$point = [];\n\n\nfor ($i=0; $i < 8; $i++) {\n    list($x, $y) = explode(\" \", trim(fgets($_fp)));\n    $point[] = [$x, $y];\n}\n\nusort($point, \"cmpPoint\");\n\n$h1 = ($point[0][1] < $point[1][1] && $point[1][1] < $point[2][1]) && ($point[0][0] == $point[1][0] && $point[1][0] == $point[2][0]);\n\n$h2 = ($point[4][1] > $point[3][1]) && ($point[4][0] == $point[3][0]);\n\n$h3 = ($point[5][1] < $point[6][1] && $point[6][1] < $point[7][1]) && ($point[5][0] == $point[6][0] && $point[6][0] == $point[7][0]);\n\n$horizon = $h1 && $h2 && $h3;\n\n$v1 = ($point[0][0] < $point[3][0] && $point[3][0] < $point[5][0]) && ($point[0][1] == $point[3][1] && $point[3][1] == $point[5][1]);\n\n$v2 = ($point[6][0] > $point[1][0]) && ($point[6][1] == $point[1][1]);\n\n$v3 = ($point[2][0] < $point[4][0] && $point[4][0] < $point[7][0]) && ($point[2][1] == $point[4][1] && $point[4][1] == $point[7][1]);\n\n$vertical = $v1 && $v2 && $v3;\n\nif ($horizon && $vertical) {\n    echo 'respectable';\n} else {\n    echo 'ugly';\n}\n\nfunction cmpPoint($x, $y)\n{\n    if ($x[0] == $y[0]) {\n        if ($x[1] == $y[1]) {\n            return 0;\n        }\n        return ($x[1] < $y[1]) ? -1 : 1;\n    } elseif ($x[0] < $y[0]) {\n        return -1;\n    } else {\n        return 1;\n    }\n}", "lang_cluster": "PHP", "tags": ["sortings"], "code_uid": "ba43781ab72f03e9338644b209913e3f", "src_uid": "f3c96123334534056f26b96f90886807", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n  $a = trim(fgets(STDIN));\n  $b = trim(fgets(STDIN));\n  $c = trim(fgets(STDIN));\n  $max = 0;\n  for ($i = 1; $i <= $a; $i++) {\n    if ($b >= $i * 2 && $c >= $i * 4) {\n      $max = max($max, $i * 7);\n    }\n  }\n  echo $max.\"\\n\";\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "d3b7880e61bef3e6341bd087eb9c4a88", "src_uid": "82a4a60eac90765fb62f2a77d2305c01", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$lemons = fgets(STDIN);\n$apples = fgets(STDIN);\n$pears = fgets(STDIN);\n\n$u_apples = floor($apples / 2);\n$u_pears = floor($pears / 4);\n\nif($lemons == 0 || $u_apples == 0 || $u_pears == 0)\n{\n    echo 0;\n    exit;\n}\n\n$mixables = min($lemons, $u_apples, $u_pears);\n\necho ($mixables) + ($mixables * 2) + ($mixables * 4);\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "9489ed9273454d6ab206e60c3ec2cc65", "src_uid": "82a4a60eac90765fb62f2a77d2305c01", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, '%d', $a);\nfscanf(STDIN, '%d', $b);\nfscanf(STDIN, '%d', $c);\n\necho min($a, floor($b/2), floor($c/4))*7;\n\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "a6203a7caa2c456733772468ac8e6a51", "src_uid": "82a4a60eac90765fb62f2a77d2305c01", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = 0;\nwhile(TRUE)\n{\n     if($a > 0)\n     {\n          if($b > 1)\n          {\n               if($c > 3)\n               {\n                    $a -= 1;\n                    $b -= 2;\n                    $c -= 4;\n                    $d += 7;\n               }\n               else\n               {\n                    break;\n               }\n          }\n          else\n          {\n               break;\n          }\n     }\n     else\n     {\n          break;\n     }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "2fa30762772bb55cb88a88f3e2f226f8", "src_uid": "82a4a60eac90765fb62f2a77d2305c01", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nlist($d, $e, $f) = explode(\" \", trim(fgets(STDIN)));\nif($a >= $d)\n{\n    $g = $a - $d;\n    $h = floor($g / 2);\n    if($b >= $e)\n    {\n        $i = $b - $e;\n        $j = floor($i / 2);\n        if($c >= $f)\n        {\n            print \"Yes\";\n        }\n        else\n        {\n            if(($h + $j + $c) >= $f)\n            {\n                print \"Yes\";\n            }\n            else\n            {\n                print \"No\";\n            }\n        }\n    }\n    else\n    {\n        if($c >= $f)\n        {\n            $k = $c - $f;\n            $l = floor($k / 2);\n            if(($h + $l + $b) >= $e)\n            {\n                print \"Yes\";\n            }\n            else\n            {\n                print \"No\";\n            }\n        }\n        else\n        {\n            if(($h + $b) >= $e)\n            {\n                $o = ($h + $b) - $e;\n                if(($o + $c) >= $f)\n                {\n                    print \"Yes\";\n                }\n                else\n                {\n                    print \"No\";\n                }\n            }\n            else\n            {\n                print \"No\";\n            }\n        }\n    }\n}\nelse\n{\n    if($b >= $e)\n    {\n        $i = $b - $e;\n        $j = floor($i / 2);\n        if($c >= $f)\n        {\n            $m = $c - $f;\n            $n = floor($m / 2);\n            if(($a + $j + $n) >= $d)\n            {\n                print \"Yes\";\n            }\n            else\n            {\n                print \"No\";\n            }\n        }\n        else\n        {\n            if(($a + $j) >= $d)\n            {\n                $p = ($a + $j) - $d;\n                if(($p + $c) >= $f)\n                {\n                    print \"Yes\";\n                }\n                else\n                {\n                    print \"No\";\n                }\n            }\n            else\n            {\n                print \"No\";\n            }\n        }\n    }\n    else\n    {\n        if($c >= $f)\n        {\n            $m = $c - $f;\n            $n = floor($m / 2);\n            if(($a + $n) >= $d)\n            {\n                $p = ($a + $n) - $d;\n                if(($p + $b) >= $e)\n                {\n                    print \"Yes\";\n                }\n                else\n                {\n                    print \"No\";\n                }\n            }\n            else\n            {\n                print \"No\";\n            }\n        }\n        else\n        {\n            print \"No\";\n        }\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e54abb64341f2a1a387b79a6b0aa8774", "src_uid": "1db4ba9dc1000e26532bb73336cf12c3", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n    function gao($a, $b) {\n        if($a > $b) return ($a-$b-($a-$b)%2)/2;\n        else \n            return $a-$b;\n    }\n\n    fscanf(STDIN, \"%d%d%d\", $a, $b, $c);\n    fscanf(STDIN, \"%d%d%d\", $x, $y, $z);\n    //echo $a, $b, $c;\n    //echo $x, $y, $z;\n    $ans = 0;\n    $ans = $ans + gao($a, $x);// echo $ans , \"\\n\";\n    $ans += gao($b, $y);// echo $ans , '\\n';\n    $ans += gao($c, $z);// echo $ans , '\\n';\n    echo $ans >= 0 ? \"Yes\" : \"No\";\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "28f9a1ff4fb7a1a072bf0034526b1c15", "src_uid": "1db4ba9dc1000e26532bb73336cf12c3", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = 0;\n$d = 0;\n$e = 0;\nfor($x = 0; $x < $a; $x++)\n{\n    if(($b[$x] != 4) && ($b[$x] != 7))\n    {\n        $c += 1;\n    }\n    if($x < $a / 2)\n    {\n        $d = $b[$x] + $d;\n    }\n    if($x >= $a / 2)\n    {\n        $e = $b[$x] + $e;\n    }\n}\nif(($c > 0) || ($d != $e))\n{\n    print(\"NO\");\n}\nelse\n{\n    print(\"YES\");\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "3977d2a495d99c9c16738927bdc7092d", "src_uid": "435b6d48f99d90caab828049a2c9e2a7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfscanf(STDIN, \"%d\\n\", $length); // reads number from STDIN\nfscanf(STDIN, \"%s\\n\", $number); // reads number from STDIN\n\n$count_4=substr_count($number,\"4\");\n$count_7=substr_count($number,\"7\");\n\n//echo $count_4.\",\".$count_7;\nif( ($count_4 + $count_7) == $length)\n{\n    $half= $length/2;\n    $sum1=0;$sum2=0;\n    \n    for($loop=0;$loop<$half; $loop++)\n    {//echo $number[$loop];\n        $sum1+=(string)$number[$loop];\n    }\n    for($loop=$half;$loop<$length; $loop++)\n        $sum2+=$number[$loop];\n    if($sum1==$sum2)\n        print(\"YES\\n\");\n    else\n     print (\"NO\\n\");\n//   echo $sum1.\",.\".$sum2;\n}\nelse\nprint (\"NO\\n\");\n\n\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1132eb7fcf6ef3fab831d54e8c4e4375", "src_uid": "435b6d48f99d90caab828049a2c9e2a7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n\nfunction solve(){\n\t$Scanner = new Scanner(\"php://stdin\");\n\t//$Scanner = new Scanner(\"input.txt\");\n\t\n\t$inp_LEN = (int)$Scanner->Scan();\n\t$inp_N = $Scanner->Scan();\n\t$nums = str_split($inp_N);\n\n\t$LUCY = true;\n\tfor ($i = 0; $i < $inp_LEN; $i++) {\n\t\tif ($nums[$i] !== '4' && $nums[$i] !== '7') {\n\t\t\t$LUCY = false;\n\t\t\tbreak;\n\t\t}\n\t}\n\t\n\tfor ($i = 0; $i < $inp_LEN; $i++) {\n\t\tif ($i < $inp_LEN / 2) $first_sum += $nums[$i];\n\t\telseif ($i >= $inp_LEN / 2) $second_sum += $nums[$i];\n\t}\n\tif ($first_sum !== $second_sum) $LUCY = false;\n\n\tif ($LUCY) print(\"YES\");\n\telseif (!$LUCY) print(\"NO\");\n\n\t$Scanner->close();\n}\n\nob_end_clean();\nsolve();\n\n//error_reporting(0);\n//$Scanner = new Scanner(\"php://stdin\");\nclass Scanner{\n\tprivate $Stream;\n\tprivate $Scanners = array();\n\tprivate $Id = 0;\n\t\n\tpublic function __construct($opend){\n\t\tif((!is_file($opend) && !is_link($opend)) && $opend !== \"php://stdin\"){\n  \t\t\tprint(\"file or link or ''php://stdin' err\");\n  \t\t\texit;\n\t\t}\n\t\t\n\t\t$this->Stream = fopen($opend, 'r');\n\t\t$contents = stream_get_contents($this->Stream);\n\n\t\t//err $c_row = array(\"\\n\", \"\\r\", \"\\r\\n\");\n\t\t$c_row = array(\"\\r\\n\", \"\\r\", \"\\n\");\n\t\t$contents = str_replace($c_row, \" \", $contents);\n\t\t$this->Scanners = explode(\" \", $contents);\n\t}\n\t\n\tfunction Scan(){\n\t\t$x = $this->Id;\n\t\t$sc = $this->Scanners[$x];\n\t\t$this->Id = ++$x;\n\t\treturn $sc;\n\t}\n\n\tfunction close(){\n\t\tfclose($this->Stream);\n\t}\n}\n\n/*\n====begin=====\n\n//input    $inp_ or upper\n//block    $temp_\n//two block$ttemp_\n//as \t   $as_\n//instance $(Upper)\n//ref      $ref\n//class menba $^Upper\n\n====end=======\n\n===== class begin =====\n\n//error_reporting(0);\n//$Scanner = new Scanner(\"php://stdin\");\n//ref \"#109_div2_B_1230942 laurenceHR\"\nclass LineScanner{\n\tprivate $Stream;\n\tprivate $Scanners = array();\n\tprivate $LineIds_Of_ScanIds= array();\n\tprivate $LinesScanners = array();\n\tprivate $LastScanIds_Of_LineIds = array();\n\tprivate $Scan_number = 0;\n\tprivate $Scanline_number = 0;\n\t\n\tpublic function __construct($opend){\n\t\tif((!is_file($opend) && !is_link($opend)) && $opend !== \"php://stdin\"){\n  \t\t\tprint(\"file or link err\");\n  \t\t\texit;\n\t\t}\n\t\t\n\t\t$this->Stream = fopen($opend, 'r');\n\t\t$contents = stream_get_contents($this->Stream);\n\t\t\n\t\t$temp_lines = explode(\"\\n\", $contents);\n\t\t$temp_linescanners = array();\n\t\t$temp_x = 0;\n\t\t$temp_y = 0;\n\t\t//--attention for initting of array--(these is not needed but for easily reading)//\n\t\t$ttemp_scanners = array();\n\t\t//$del = Array(\"\\n\",\"\\r\",\"\\n\\r\");\n\t\tforeach ($temp_lines as $as_line) {\n\t\t\tif (strlen($as_line) === 0) {\n\t\t\t\tprint(\"input err\");\n\t\t\t}\n\t\t\t\n\t\t\t//$as_line = str_replace($del,'',$as_line);\n\t\t\t$temp_linescanners[] = $as_line;\n\t\t\t$ttemp_line_scanners = explode(\" \", $as_line);\n\t\t\t//$ttemp_scanners = array();\n\t\t\tforeach ($ttemp_line_scanners as $as_sc) {\n\t\t\t\t$ttemp_scanners[] = $as_sc;\n\t\t\t\t$this->LineIds_Of_ScanIds[$temp_x] = $temp_y;\n\t\t\t\t$temp_x++;\n\t\t\t}\n\t\t\t$this->LastScanIds_Of_LineIds[$temp_y] = $temp_x - 1;\n\t\t\t$temp_y++;\n\t\t}\n\t\t$this->Scanners = $ttemp_scanners;\n\t\t$this->LinesScanners = $temp_linescanners;\n\t}\n\t\n\tfunction Scan(){\n\t\t$x = $this->Scan_number;\n\t\t$y = $this->Scanline_number;\n\t\tif ($this->LineIds_Of_ScanIds[$x] === false || $this->LastScanIds_Of_LineIds[$y] === false) {\n\t\t\tprint(\"scan err\");\n\t\t}\n\t\t\t\t\n\t\t$sc = $this->Scanners[$x];\n\t\t//--attention for ++$x//\n\t\t//$this->Scan_number = $x++;\n\t\t$this->Scan_number = ++$x;\n\t\t$this->Scanline_number = $this->LineIds_Of_ScanIds[$x];\n\t\treturn $sc;\n\t}\n\t\n\tfunction LineScan(){\n\t\t$x = $this->Scan_number;\n\t\t$y = $this->Scanline_number;\n\t\tif ($this->LineIds_Of_ScanIds[$x] === false || $this->LastScanIds_Of_LineIds[$y] === false) {\n\t\t\tprint(\"linescan err\");\n\t\t}\n\t\t\n\t\t$lsc = $this->LinesScanners[$y];\n\t\t$this->Scan_number = $this->LastScanIds_Of_LineIds[$y] + 1;\n\t\t$this->Scanline_number = $y + 1;\n\t\treturn $lsc;\n\t}\n\t\n\tfunction close(){\n\t\tfclose($this->Stream);\n\t}\n}\n\nclass Token{\n\tprivate $token;\n\tprivate $tok;\n\t\n\tpublic function __construct($str_line, $tok) {\n\t\t$this->tok = $tok;\n\t\t$this->token = strtok($str_line, $this->tok);\n\t}\n\n\tpublic function nextToken() {\n\t\t$thisToken = $this->token;\n\t\t$this->token = strtok($this->tok);\n\t\treturn $thisToken;\n\t} \n\t\t\n\tpublic function nextFloat() {\n\t\treturn (float)$this->nextToken();\n\t}\n\t\n  \tpublic function nextInt() {\n\t\treturn (int)$this->nextToken();\n\t}\n\t\n\tpublic function nextIntArray() {\n\t\t$temp_arr = array();\n\t\t$flag = -1;\n\t\twhile ($flag !== 1) {\n\t\t\t$thisToken = $this->nextToken();\n\t\t\tif ($thisToken !== false) {\n\t\t\t\t$temp_arr[] = $thisToken;\n\t\t\t} else {\n\t\t\t\t$flag = 1;\n\t\t\t}\n\t\t}\n\t\treturn $temp_arr;\n\t}\n\n\tpublic function nnextIntArray($num) {\n\t\t$temp_arr = array();\n\t\tfor ($i = 0; $i < $num; $i++) {\n\t\t\t$temp_arr[] = (int)$this->token;\n\t\t}\n\t\treturn $temp_arr;\n\t}\n}\n===== class end ======\n\n=== function begin ===\n\nfunction get_line() {\n        $stdin = fopen(\"php://stdin\", \"r\"); \n        $line = rtrim($stdin, \"\\n\"); \n        fclose($stdin); \n        return $line; \n}\n\nfunction num_printf($i){\n\tif (is_float($i)) {\n\t\tprintf(\"%.0f\", $i);\n\t}\n\tif (is_int($i)) {\n\t\tprintf(\"%d\", $i);\n\t}\n}\n\nfunction array_printf(array $array) {\n\t\t$message = \"\";\n\t\tforeach ($array as $value) {\n\t\t\t$message .= \"$value\" . \" \";\n\t\t}\n\t\t$message = rtrim($message);\n\t\tprintf('%s', $message);\n}\n\n== function end ======\n*/\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c1d621fca8fc79cec28454574de32c25", "src_uid": "435b6d48f99d90caab828049a2c9e2a7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = $c % $a;\nif($d == 0)\n{\n     print \"-1\";\n}\nelseif($c < $a)\n{\n     $e = $a / 2;\n     if(($b <= (0 - $e)) || ($b >= $e))\n     {\n          print \"-1\";\n     }\n     else\n     {\n          print \"1\";\n     }\n}\nelseif($c > $a)\n{\n     $e = floor($c / $a);\n     $f = $e % 2;\n     $g = ceil($e / 2);\n     $h = $e + $g;\n     $i = $a / 2;\n     $j = ($e / 2) * 3;\n     if($f == 0)\n     {\n          if(($b <= (0 - $a)) || ($b >= $a) || ($b == 0))\n          {\n               print \"-1\";\n          }\n          else\n          {\n               \n               if(($b > (0 - $a)) && ($b < 0))\n               {\n                    print $j;\n               }\n               elseif(($b > 0) && ($b < $a))\n               {\n                    print $j + 1;\n               }\n          }\n     }\n     else\n     {\n          if(($b <= (0 - $i)) || ($b >= $i))\n          {\n               print \"-1\";\n          }\n          else\n          {\n               print $h;\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "geometry"], "code_uid": "e8ff1ff89cda2195e67e7f589cfa512e", "src_uid": "cf48ff6ba3e77ba5d4afccb8f775fb02", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\nfor($x = 0; $x < 8; $x++)\n{\n     $c = min($c, $a[$x]);\n     $c = min($c, $b[$x]);\n}\nfor($x = 0; $x < 8; $x++)\n{\n     $a[$x] += abs($c);\n     $b[$x] += abs($c);\n}\n$d = array($a[0], $a[2], $a[4], $a[6]);\n$e = array($a[1], $a[3], $a[5], $a[7]);\nsort($d);\nsort($e);\n$j = array();\nfor($x = $d[0]; $x <= $d[2]; $x++)\n{\n     for($y = $e[0]; $y <= $e[2]; $y++)\n     {\n          $k = $x . \"-\" . $y;\n          $j[count($j)] = $k;\n     }\n}\n$l = array($b[0], $b[2], $b[4], $b[6]);\n$m = array($b[1], $b[3], $b[5], $b[7]);\n$n = min($m);\n$o = max($m);\n$p = min($l);\n$r = (min($l) + max($l)) / 2;\n$s = array();\n$t = $r;\n$u = $r;\nfor($x = $n; $x <= $o; $x++)\n{\n     for($y = $t; $y <= $u; $y++)\n     {\n          $v = $y . \"-\" . $x;\n          $s[count($s)] = $v;\n     }\n     if($x < (($o + $n) / 2))\n     {\n          $t--;\n          $u++;\n     }\n     else\n     {\n          $t++;\n          $u--;\n     }\n}\n$w = array_intersect($j, $s);\nif(count($w) > 0)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["geometry", "implementation"], "code_uid": "b9713dce39590481996122bfef7aba36", "src_uid": "f6a3dd8b3bab58ff66055c61ddfdf06a", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\n#error_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\nfunction readNumArray($f) {\n\treturn readStringExplodeNum($f, ' ', true);\n}\n\nfunction readArray($f) {\n\treturn readStringExplodeNum($f, ' ');\n}\n\nfunction readTrimString($f) {\n\treturn trim(readString($f));\n}\n\n###### /IO ######\n# for($i=0;$i<$n;$i++)\n\nfunction getAnswer($is_test = false, $f = false) {\n\tif ($is_test === false) {\n\t\t$f = STDIN;\n\t}\n\t/* begin body */\n\t$first = readString($f);\n\t$second = readString($f);\n\t\n\t$dayCount = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);\n\t$days = array('monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday', 'sunday');\n\t$firstIndex = array_search($first, $days);\n\tfor ($m = 0; $m < 11; $m++) {\n\t\t$diff = $dayCount[$m] % 7;\n\t\t$next = ($firstIndex + $diff) % 7;\n\t\tif ($second == $days[$next]) {\n\t\t\techo 'YES';\n\t\t\treturn;\n\t\t}\n\t}\n\techo 'NO';\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1882e01bae7a5ed32699e66d0deaccc4", "src_uid": "2a75f68a7374b90b80bb362c6ead9a35", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nsort($b);\nif($a == 2)\n{\n     print $b[1] . \" \" . $b[0];\n}\nelseif($a == 3)\n{\n     print $b[2] . \" \" . $b[0] . \" \" . $b[1];\n}\nelseif($a >= 4)\n{\n     $c = $b[0];\n     $d = $b[1];\n     $e = $b[$a - 2];\n     $f = $b[$a - 1];\n     unset($b[0]);\n     unset($b[1]);\n     unset($b[$a - 2]);\n     unset($b[$a - 1]);\n     print $f . \" \" . $d . \" \" . implode(\" \", $b) . \" \" . $e . \" \" . $c;\n}\n?>", "lang_cluster": "PHP", "tags": ["sortings", "constructive algorithms", "implementation"], "code_uid": "d17f88a8e44493b239d1522bbb086676", "src_uid": "4408eba2c5c0693e6b70bdcbe2dda2f4", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = ceil($a / $c);\n$f = array();\n$g = $b;\nfor($x = 0; $x < $e; $x++)\n{\n     $f[$x] = $g;\n     $g += $b;\n}\n$h = $d;\n$i = array();\n$j = $b;\nwhile(TRUE)\n{\n     $h += $b;\n     if($h >= $f[count($f) - 1])\n     {\n          break;\n     }\n     else\n     {\n          $i[count($i)] = $h;\n     }\n}\n$k = array_merge($f, $i);\nsort($k);\n$l = 0;\n$m = 0;\nfor($x = 0; $x < count($k); $x++)\n{\n     $m += $c;\n     if(($m >= $a) && ($x != (count($k) - 1)))\n     {\n          $l = 1;\n          break;\n     }\n}\nif($l == 0)\n{\n     print \"NO\";\n}\nelse\n{\n     print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "6a8043c233ef441ce90dcfecebea4c6a", "src_uid": "32c866d3d394e269724b4930df5e4407", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    //$line = \"8 6 4 5\";\n    //$line = \"8 6 4 6\";\n    //$line = \"10 3 11 4\";\n    //$line = \"4 2 1 4\";\n    $line = readline();\n    list($n, $t, $k, $d) = explode(' ', $line);\n\n    $duration1 = ceil($n/$k)*$t;\n\n    $times1 = floor($d/$t); //before build oven, how many times first oven makes cakes\n\n    $t1 = $times1 * $t;\n    $minutes1 = $d - $t1;\n\n    $n2 = $n - $times1 * $k;\n\n    $times2 = ceil($n2 / $k);\n\n    if ($times2 % 2 == 0) {  //even\n        $duration2 = $d + ceil($n2/($k*2))*$t;\n    } else { //odd\n        $duration2 = $d + ceil($n2/($k*2))*$t - $minutes1;\n    }\n\n    if ($duration2 < $duration1) {\n        echo \"Yes\";\n    } else {\n        echo \"No\";\n    }\n\n\n    //echo \"$line ---- $duration1, $duration2, -----  $minutes1, $t1, $n2, $times2\";", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "156d605b877417e64bc7528b62c5d941", "src_uid": "32c866d3d394e269724b4930df5e4407", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$a *= 4;\n$c = explode(\" \", trim(fgets(STDIN)));\nrsort($c);\n$d = array();\nfor($x = 0; $x < $b; $x++)\n{\n     $e = ceil($c[$x] / 2);\n     $d[$x] = $e;\n}\n$f = array_sum($d);\nif($a == $b)\n{\n     $g = $b / 4;\n     $h = $b * 2 - $g;\n     $i = array_sum($c);\n     if(($i <= $h) && ($c[0] < 3))\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\nelse\n{\n     if($f <= $a)\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy", "implementation"], "code_uid": "f0362dcfbac082d838fefa6f92b01f40", "src_uid": "d1f88a97714d6c13309c88fcf7d86821", "difficulty": 1900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = trim(fgets(STDIN));\n$e = trim(fgets(STDIN));\n$f = trim(fgets(STDIN));\n$g = (min($a, $d) * $e) + (min(($d - min($a, $d)), $b, $c) * $f);\n$h = (min($b, $c, $d) * $f) + (min($d - min($b, $c, $d), $a)* $e);\nprint max($g, $h);\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "brute force"], "code_uid": "8c445271211135cb748f38cb70fb2cef", "src_uid": "84d9e7e9c9541d997e6573edb421ae0a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction solve()\n{\n    $server = \"php://stdin\";\n    $local = \"input.txt\";\n    $handle = fopen($server, \"r\");\n    $t= trim(fgets($handle));\n    $v = trim(fgets($handle));\n    $c = trim(fgets($handle));\n    $j = trim(fgets($handle));\n    $s1 = trim(fgets($handle));\n    $s2 = trim(fgets($handle));\n\n    if($s2>=$s1)\n    {\n        $range=min($v,min($j,$c));\n        $left=min($v,min($j,$c))*$s2;\n        $right=min(($j-$range),$t)*$s1;\n        echo $left+$right;\n    }else\n    {\n        $range=min($j,$t);\n        $left=$range*$s1;\n        $right=min(($j-$range),min($v,min($j,$c)))*$s2;\n        echo $left+$right;\n    }\n\n\n\n}\n\n\nsolve();\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "brute force"], "code_uid": "9dfd1db014c1f13f8f64b5123736465d", "src_uid": "84d9e7e9c9541d997e6573edb421ae0a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$s = str_split(trim(fgets(STDIN)));\n\t$n = count($s);\n\t$rev = '';\n\t\n\tif($n % 2 == 0){\n\t\tfor($i = $n-1; $i>($n/2)-1; $i--){\n\t\t\t$rev .= $s[$i].$s[$n-$i-1];\n\t\t}\n\t\techo strrev($rev);\n\t}else{\n\t\tfor($i = 0; $i<($n/2); $i++){\n\t\t\t$rev .= $s[$i].$s[$n-$i-1];\n\t\t}\n\t\techo substr(strrev($rev), 1);\n\t}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "92b5770dda29972f686bfac57c970e4b", "src_uid": "992ae43e66f1808f19c86b1def1f6b41", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str=trim(fgets(STDIN));\n$length=strlen($str);\nif($length==1)\n  echo \"$str\";\nelse\n{\n\t\n$fChar=(int)(ceil($length/2)-1);\n$resultStr=\"\";\n$inc=$fChar;\n$dec=$fChar;\n$resultStr.=$str[$fChar];\n\nfor ($i=0; $i <$length-1 ; $i++) \n{ \n\tif($i%2==0)\n\n\t\t$resultStr.=$str[++$inc];\n\telse\n\t\t$resultStr.=$str[--$dec];\n}\necho \"$resultStr\";\n}", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "de5527fc46922314e1c3de9a2392f8b9", "src_uid": "992ae43e66f1808f19c86b1def1f6b41", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$stdin = fopen('php://stdin', 'r');\n$stdout = fopen('php://stdout', 'w');\n\nfscanf($stdin, \"%d%d\", $Ax, $Ay);\nfscanf($stdin, \"%d%d\", $Bx, $By);\nfscanf($stdin, \"%d%d\", $Cx, $Cy);\n\n$Cx -= $Bx;\n$Cy -= $By;\n$Bx -= $Ax;\n$By -= $Ay;\n\n$a = $Bx*$Cy - $By*$Cx;\n\nif ($a > 0)\n{\n    fwrite($stdout, \"LEFT\"); \n}\nelse if ($a < 0)\n{\n    fwrite($stdout, \"RIGHT\");\n}\nelse\n{\n    fwrite($stdout, \"TOWARDS\"); \n}", "lang_cluster": "PHP", "tags": ["geometry"], "code_uid": "1931d512e9952192c8bd28f808ab5fea", "src_uid": "f6e132d1969863e9f28c87e5a44c2b69", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(\" \", \"1\");\nunset($b[0]);\n$c = 1;\nfor($x = 2; $x <= 100; $x++)\n{\n    $c += $x;\n    array_push($b, $c);\n    if($c >= 500)\n    {\n        break;\n    }\n}\n$d = array_search($a, $b);\nif($d == TRUE)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "c1601686b0bd65c3bef8de850d81b96e", "src_uid": "587d4775dbd6a41fc9e4b81f71da7301", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n$input = file_get_contents(\"php://stdin\");\n$nums = array();\nfor($i=1;$i<=500;$i++) {\n    $num = ($i*($i+1))/2;\n    if($input == $num) {\n        echo \"YES\";exit();\n    }\n    if($num > $input) {\n        echo \"NO\";exit();\n    }\n}\n\n", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "bea4b0838935ad409f00e9a177fbcf81", "src_uid": "587d4775dbd6a41fc9e4b81f71da7301", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = array($b);\n$d = 1;\nwhile(TRUE)\n{\n     $e = strval($c[$d - 1]);\n     if($e[strlen($e) - 1] == \"1\")\n     {\n          $f = substr($e, 0, strlen($e) - 1);\n          $c[$d] = $f;\n          $d++;\n          if(($f <= $a) || ($f == 1))\n          {\n               break;\n          }\n     }\n     else\n     {\n          $g = $e % 2;\n          if($g == 0)\n          {\n               $h = $e / 2;\n               $c[$d] = $h;\n               $d++;\n               if(($h <= $a) || ($h == 1))\n               {\n                    break;\n               }\n          }\n          else\n          {\n               break;\n          }\n     }\n}\n$i = array_reverse($c);\nif(($i[0] == $a) && ($i[count($i) - 1] == $b))\n{\n     print \"YES\\n\";\n     print count($i) . \"\\n\";\n     print implode(\" \", $i);\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["dfs and similar", "math", "brute force"], "code_uid": "c8c039411158c7117eeec43039240fb9", "src_uid": "fc3adb1a9a7f1122b567b4d8afd7b3f3", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a,$b)=explode(' ',trim(fgets(STDIN)));\nfunction findtt($a,$b,&$out) {\n\t$out[]=$b;\n\tif($a>$b) return 0;\n\tif($b==$a) return $b;\n\tif($b%2==0) return findtt($a,$b/2,$out);\n\tif(strrpos($b,'1')==(strlen($b)-1)&&$b!=1) return findtt($a,(($b-1)/10),$out);\n}\nif(findtt($a,$b,$out)) echo(\"YES\\n\"); else exit(\"NO\\n\");\necho count($out).\"\\n\".implode(' ',array_reverse($out)).\"\\n\";", "lang_cluster": "PHP", "tags": ["dfs and similar", "math", "brute force"], "code_uid": "537438602d119fcf99fd22683e69aac7", "src_uid": "fc3adb1a9a7f1122b567b4d8afd7b3f3", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\nif(strlen($a) < strlen($b))\n{\n     $c = str_split($a);\n     rsort($c);\n     $d = implode($c);\n     print $d;\n}\nelse\n{\n     $c = str_split($a);\n     $d = str_split($b);\n     $e = array();\n     for($x = 0; $x < count($d); $x++)\n     {\n          $f = 0;\n          for($y = 0; $y < count($c); $y++)\n          {\n               if($c[$y] == $d[$x])\n               {\n                    $e[count($e)] = $c[$y];\n                    array_splice($c, $y, 1);\n                    $f = 1;\n                    break;\n               }\n          }\n          if($f == 0)\n          {\n               break;\n          }\n     }\n     if($f == 0)\n     {\n          rsort($c);\n          $g = array_slice($d, $x);\n          $h = $g[0];\n          $i = 0;\n          for($x = 0; $x < count($c); $x++)\n          {\n               if($c[$x] < $h)\n               {\n                    $e[count($e)] = $c[$x];\n                    array_splice($c, $x, 1);\n                    $i = 1;\n                    break;\n               }\n          }\n          if($i == 0)\n          {\n               for($x = count($e) - 1; $x >= 0; $x--)\n               {\n                    rsort($c);\n                    $j = 0;\n                    for($y = 0; $y < count($c); $y++)\n                    {\n                         if($c[$y] < $e[$x])\n                         {\n                              $j = 1;\n                              break;\n                         }\n                    }\n                    if($j == 0)\n                    {\n                         $c[count($c)] = $e[$x];\n                         array_splice($e, $x, 1);\n                    }\n                    else\n                    {\n                         $c[count($c)] = $e[$x];\n                         array_splice($e, $x, 1);\n                         $e[count($e)] = $c[$y];\n                         array_splice($c, $y, 1);\n                         break;\n                    }\n               }\n               rsort($c);\n               $i = array_merge($e, $c);\n               print implode($i);\n          }\n          else\n          {\n               rsort($c);\n               $i = array_merge($e, $c);\n               print implode($i);\n          }\n     }\n     else\n     {\n          print implode($e);\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy", "dp"], "code_uid": "17810d700c0c7c216796186040646d41", "src_uid": "bc31a1d4a02a0011eb9f5c754501cd44", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $s = \"1\";\n    for($i=2;strlen($s)<1000;$i++) {\n        $s = $s . $i;\n    }\n    $n = trim(fgets(STDIN));\n    print($s[$n-1]);\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a270a1b95ac369c2c635ac774d294f25", "src_uid": "2d46e34839261eda822f0c23c6e19121", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = trim(fgets(STDIN));\n$num = \"12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871\";\n$n = $n - 1;\nprint substr($num, $n, 1);\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0a6d17ffe41cb751788674d6e937ca7e", "src_uid": "2d46e34839261eda822f0c23c6e19121", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nfor ($i=1;$i<=$a;$i+=1) $b.=(string)$i;\necho $b[$a-1]; \n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "145d7028cfa1ec0e053b0f0dc40856fc", "src_uid": "2d46e34839261eda822f0c23c6e19121", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\nerror_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\n###### /IO ######\n\nfunction getAnswer($is_test = false, $f = false) {\n\tif ($is_test === false) {\n\t\t$f = STDIN;\n\t}\n\t/* begin body */\n\t$n = readNum($f);\n\t$str = '';\n\tfor ($i = 1; $i <= 1001; $i++) {\n\t\t$str.=$i;\n\t}\n\techo $str[$n-1];\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "8b8cf33473ddf3db5be137601181ec67", "src_uid": "2d46e34839261eda822f0c23c6e19121", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\n$d = array();\nfor($x = 1; $x <= $b; $x++)\n{\n     $e = 0;\n     for($y = 2; $y <= $a; $y++)\n     {\n          if($y == $a)\n          {\n               $e = 1;\n          }\n          $f = $a % $y;\n          $g = $a / $y;\n          if($f == 0)\n          {\n               if($x == $b)\n               {\n                    $d[count($d)] = $a;\n               }\n               else\n               {\n                    $d[count($d)] = $y;\n                    $a = $g;\n               }\n               break;\n          }\n     }\n     if($e == 1)\n     {\n          break;\n     }\n}\nif($b == count($d))\n{\n     print implode(\" \", $d);\n}\nelse\n{\n     print \"-1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation", "number theory"], "code_uid": "dac7c795c95f23cb2f829988687a44d6", "src_uid": "bd0bc809d52e0a17da07ccfd450a4d79", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nsort($b);\n$c = 1;\n$e = 0;\n$f = 0;\nfor($x = 1; $x <= $a; $x++)\n{\n     $g = $c % 2;\n     $c++;\n     if($g == 1)\n     {\n          $f += abs($x - $b[$e]);\n          $e++;\n     }\n}\n$h = 1;\n$j = 0;\n$k = 0;\nfor($x = 1; $x <= $a; $x++)\n{\n     $l = $h % 2;\n     $h++;\n     if($l == 0)\n     {\n          $k += abs($x - $b[$j]);\n          $j++;\n     }\n}\nprint min($f, $k);\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a9081fb474e57d396d8b7e70c11fc0f8", "src_uid": "0efe9afd8e6be9e00f7949be93f0ca1a", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$in = fopen('php://stdin', 'r');\n\nlist($n,$m) = explode(\" \", rtrim(fgets($in)));\n$a = explode(\" \", rtrim(fgets($in)));\n\n$r = $m;\n$c=0;\nfor($i=0; $i<count($a); $i++){\n    if($a[$i]<=$r){\n        if($r==$m){\n            $c++;\n        }\n        $r -= $a[$i];\n    }else{\n        $c++;\n        $r = $m-$a[$i];\n    }\n}\necho $c;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "51768d233fe7b21b64df3f4cbfa38034", "src_uid": "5c73d6e3770dff034d210cdd572ccf0f", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($a, $b, $c) = explode(' ', trim(fgets(STDIN)));\n\n$div = $a;\n\n$num = sprintf('%.30f', $a / $b);\n\n$res = -1;\nfor ($i = 0; $i < $b; $i++)\n{\n\tif ((($div * 10) / $b) % 10 === (int)$c)\n\t{\n\t\t$res = $i + 1;\n\t\tbreak;\n\t}\n\n\t$div = $div * 10;\n\n\twhile (true)\n\t{\n\t\tif ($div < $b)\n\t\t{\n\t\t\tbreak;\n\t\t}\n\t\t$div -= $b;\n\t}\n}\n\necho $res;\n", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "d37630f1a608fe90c403493804d673ab", "src_uid": "0bc7bf67b96e2898cfd8d129ad486910", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = array();\nfor($x = 0; $x < 10000; $x++)\n{\n     $a .= 0;\n     if($a < $b)\n     {\n          $d[count($d)] = 0;\n     }\n     else\n     {\n          $i = 1;\n          $e = floor($a / $b);\n          $d[count($d)] = $e;\n          $f = $e * $b;\n          $a -= $f;\n     }\n}\n$h = 0;\nfor($x = 0; $x < count($d); $x++)\n{\n     if($d[$x] == $c)\n     {\n          $h = 1;\n          break;\n     }\n}\nif($h == 0)\n{\n     print \"-1\";\n}\nelse\n{\n     print $x + 1;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "501da963daa59555bdadddacaae2fa71", "src_uid": "0bc7bf67b96e2898cfd8d129ad486910", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = array();\nfor($x = 0; $x < 250; $x++)\n{\n     $a .= 0;\n     if($a < $b)\n     {\n          $d[count($d)] = 0;\n     }\n     else\n     {\n          $i = 1;\n          $e = floor($a / $b);\n          $d[count($d)] = $e;\n          $f = $e * $b;\n          $a -= $f;\n          if($a == 0)\n          {\n               $d[count($d)] = 0;\n               break;\n          }\n     }\n     $g = array_unique($d);\n}\n$h = 0;\nfor($x = 0; $x < count($d); $x++)\n{\n     if($d[$x] == $c)\n     {\n          $h = 1;\n          break;\n     }\n}\nif($h == 0)\n{\n     print \"-1\";\n}\nelse\n{\n     print $x + 1;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "number theory"], "code_uid": "f5fa28cb2205df618f36706f10bc2327", "src_uid": "0bc7bf67b96e2898cfd8d129ad486910", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\":\", trim(fgets(STDIN)));\nlist($d, $e, $f) = explode(\":\", trim(fgets(STDIN)));\n$g = 365;\n$h = 366;\n$i = 0;\n$j = array(\"31\", \"28\", \"31\", \"30\", \"31\", \"30\", \"31\", \"31\", \"30\", \"31\", \"30\", \"31\");\narray_unshift($j, \" \");\nunset($j[0]);\n$k = array(\"31\", \"29\", \"31\", \"30\", \"31\", \"30\", \"31\", \"31\", \"30\", \"31\", \"30\", \"31\");\narray_unshift($k, \" \");\nunset($k[0]);\n$l = 0;\n$m = 0;\nfor($x = 1; $x < $a; $x++)\n{\n    if(($x % 4) == 0)\n    {\n        $i += $h;\n        if(($x % 100) == 0)\n        {\n            $i -= $h;\n            if(($x % 400) == 0)\n            {\n                $i += $h;\n            }\n            else\n            {\n                $i += $g;\n            }\n        }\n    }\n    else\n    {\n        $i += $g;\n    }\n}\nif(($a % 4) == 0)\n{\n    $l = 1;\n}\nif((($a % 100) == 0) && ($a != 2000))\n{\n    $l = 0;\n}\nif($l == 1)\n{\n    for($x = 1; $x < $b; $x++)\n    {\n        $i += $k[$x];\n    }\n    $i += $c;\n}\nelse\n{\n    for($x = 1; $x < $b; $x++)\n    {\n        $i += $j[$x];\n    }\n    $i += $c;\n}\n//////////////////////////////////////////////////\n$m = 0;\n$l = 0;\nfor($x = 1; $x < $d; $x++)\n{\n    if(($x % 4) == 0)\n    {\n        $m += $h;\n        if(($x % 100) == 0)\n        {\n            $m -= $h;\n            if(($x % 400) == 0)\n            {\n                $m += $h;\n            }\n            else\n            {\n                $m += $g;\n            }\n        }\n    }\n    else\n    {\n        $m += $g;\n    }\n}\nif(($d % 4) == 0)\n{\n    $l = 1;\n}\nif((($d % 100) == 0) && ($d != 2000))\n{\n    $l = 0;\n}\nif($l == 1)\n{\n    for($x = 1; $x < $e; $x++)\n    {\n        $m += $k[$x];\n    }\n    $m += $f;\n}\nelse\n{\n    for($x = 1; $x < $e; $x++)\n    {\n        $m += $j[$x];\n    }\n    $m += $f;\n}\nif($i >= $m)\n{\n    print $i - $m;\n}\nelse\n{\n    print $m - $i;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "6cf61b63ea29569deaf9a1c2861c66b4", "src_uid": "bdf99d78dc291758fa09ec133fff1e9c", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = array($a, $b, $c);\nrsort($d);\n$e = $d[1] + $d[2];\n$f = $d[0] + $d[1] + $d[2];\n$g  = floor($f / 3);\nprint min($e, $g);\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "c07cd2ece686b4916c7bf07c76f46210", "src_uid": "bae7cbcde19114451b8712d6361d2b01", "difficulty": 1800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN));\n    $a = explode(\" \",trim(fgets(STDIN)));\n    $sum = array_sum($a);\n    if ($sum == 0)\n    {\n        echo(\"0\");\n        \n    }\n    else\n    {\n        $res = 1;\n        $pre = -1;\n        for ($i = 0 ; $i < $n ; $i ++)\n        {\n            if ($a[$i] == 1)\n            {\n                if ($pre != -1)\n                {\n                    $res *= $i - $pre;\n                }\n                $pre = $i ;\n            }\n        }\n        \n        echo(number_format($res,0,'',''));\n    }\n    \n?>", "lang_cluster": "PHP", "tags": ["combinatorics"], "code_uid": "881a0ecc1a42a0c44ca258e9c797feb2", "src_uid": "58242665476f1c4fa723848ff0ecda98", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * Author: 七柳先森\n * Date: 2016/1/26  9:13\n */\n//组合数学问题。\nfscanf(STDIN,\"%d\",$n);\n$bans = array();\n$line = stream_get_line(STDIN,1000000,\"\\n\");\n$line = rtrim($line);//去除右边的换行符。\n$bans = explode(\" \",$line);\n\n//var_dump($bans);\n$result = 0;\n$prev = -1;\n//连续的的找1，只有出现1的时候才能产生新组合。\n//遇到一个1，就是前面的1的方案数，乘上到这个1的区间切割方案，也就是posi - posi-1\nfor($i = 0 ; $i < $n;$i++){\n    if($bans[$i] == 1){\n        if($prev == -1){\n            $result = 1;\n        }else{\n            $result *= $i - $prev;\n        }\n        $prev = $i;\n    }\n}\nfprintf(STDOUT,\"%.0f\",$result);", "lang_cluster": "PHP", "tags": ["combinatorics"], "code_uid": "d316625b15d7fc562e89c9013ac47822", "src_uid": "58242665476f1c4fa723848ff0ecda98", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(\"O-|-OOOO\", \"O-|O-OOO\", \"O-|OO-OO\", \"O-|OOO-O\", \"O-|OOOO-\", \"-O|-OOOO\", \"-O|O-OOO\", \"-O|OO-OO\", \"-O|OOO-O\", \"-O|OOOO-\");\n$c = str_split($a);\n$d = array_reverse($c);\nfor($x = 0; $x < count($c) - 1; $x++)\n{\n    print $b[$d[$x]] . \"\\n\";\n}\nprint $b[$d[$x]];\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "023acad6cac8a79a1d5cfa87ad387174", "src_uid": "c2e3aced0bc76b6484360563355d23a7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "\n<?php\n\n    $n = trim(fgets(STDIN));\n\n    $arr[0] = 'O-|-OOOO';\n    $arr[1] = 'O-|O-OOO';\n    $arr[2] = 'O-|OO-OO';\n    $arr[3] = 'O-|OOO-O';\n    $arr[4] = 'O-|OOOO-';\n    $arr[5] = '-O|-OOOO';\n    $arr[6] = '-O|O-OOO';\n    $arr[7] = '-O|OO-OO';\n    $arr[8] = '-O|OOO-O';\n    $arr[9] = '-O|OOOO-';\n\n    $l = strlen($n);\n    $n = strrev($n);\n\n\n    for($i = 0; $i < $l; $i++)\n    {\n        $t = (int)$n[$i];\n        //echo \"$arr[$t]\\n\";\n        fwrite(STDOUT, \"$arr[$t]\\n\");\n    }\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e9c1c3ae6d15a47f64b33af0c0559067", "src_uid": "c2e3aced0bc76b6484360563355d23a7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n = intval(fgets(STDIN)); //0 ≤ n < 1000000000\n\nfunction soroban09($int)\n{\n\n    if ($int == 0) {\n        $int = 'O-|-OOOO';\n    }\n    if ($int == 1) {\n        $int = 'O-|O-OOO';\n    }\n    if ($int == 2) {\n        $int = 'O-|OO-OO';\n    }\n    if ($int == 3) {\n        $int = 'O-|OOO-O';\n    }\n    if ($int == 4) {\n        $int = 'O-|OOOO-';\n    }\n    if ($int == 5) {\n        $int = '-O|-OOOO';\n    }\n    if ($int == 6) {\n        $int = '-O|O-OOO';\n    }\n    if ($int == 7) {\n        $int = '-O|OO-OO';\n    }\n    if ($int == 8) {\n        $int = '-O|OOO-O';\n    }\n    if ($int == 9) {\n        $int = '-O|OOOO-';\n    }\n    return $int;\n\n}\n\n$n = intval($n);\n\nif ($n < 0) {\n    die('n must be positive integer value');\n} elseif ($n >= 1000000000) {\n    die('n must be <1000000000');\n}\n\n$n = array_reverse(array_map('intval', str_split($n)));\n\nforeach ($n as $srb) {\n    echo soroban09($srb) . \"\\n\";\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7c7569b46a8de0850841c1bb810e5fe3", "src_uid": "c2e3aced0bc76b6484360563355d23a7", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = trim(fgets(STDIN));\n$e = trim(fgets(STDIN));\n$f = ($c - 1) * $a + ($d - 1) * $b;\n$e2 = $e;\n$e2 -= $f;\nif($e2 <= 0)\n{\n     print \"0 \";\n}\nelse\n{\n     print min($a + $b, $e2) . \" \";\n}\nif($c <= $d)\n{\n     $e2 = $e;\n     $g = 0;\n     $a2 = $a;\n     for($x = 1; $x <= $a; $x++)\n     {\n          $e2 -= $c;\n          if($e2 >= 0)\n          {\n               $c2--;\n               $g++;\n               if($a2 == 0)\n               {\n                    break;\n               }\n          }\n          else\n          {\n               $e2 += $c;\n               break;\n          }\n     }\n     $b2 = $b;\n     for($x = 1; $x <= $b; $x++)\n     {\n          $e2 -= $d;\n          if($e2 >= 0)\n          {\n               $b2--;\n               $g++;\n               if($b2 == 0)\n               {\n                    break;\n               }\n          }\n          else\n          {\n               $e2 += $d;\n               break;\n          }\n     }\n     print $g;\n}\nelse\n{\n     $b2 = $b;\n     $e2 = $e;\n     $g = 0;\n     for($x = 1; $x <= $b; $x++)\n     {\n          $e2 -= $d;\n          if($e2 >= 0)\n          {\n               $b2--;\n               $g++;\n               if($b2 == 0)\n               {\n                    break;\n               }\n          }\n          else\n          {\n               $e2 += $d;\n               break;\n          }\n     }\n     $a2 = $a;\n     for($x = 1; $x <= $a; $x++)\n     {\n          $e2 -= $c;\n          if($e2 >= 0)\n          {\n               $c2--;\n               $g++;\n               if($a2 == 0)\n               {\n                    break;\n               }\n          }\n          else\n          {\n               $e2 += $c;\n               break;\n          }\n     }\n     print $g;\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation"], "code_uid": "75efa902add78a4232cf9328167b6d60", "src_uid": "2be8e0b8ad4d3de2930576c0209e8b91", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = $a . $b . $c;\n$e = str_split($d);\narray_unshift($e, \" \");\nunset($e[0]);\n$e1 = $e;\n$e2 = $e;\n$e3 = $e;\n$e4 = $e;\n$e5 = $e;\nfor($x = 1; $x <= 3; $x++)\n{\n    $f = array_search(\"A\", $e);\n    $g = array_search(\"B\", $e);\n    $h = array_search(\"C\", $e);\n    if($f == TRUE)\n    {\n        $e[$f] = 1;\n    }\n    if($g == TRUE)\n    {\n        $e[$g] = 2;\n    }\n    if($h == TRUE)\n    {\n        $e[$h] = 3;\n    }   \n}\n$i = implode($e);\nif($i[1] == \">\")\n{\n    $k = $i[0] > $i[2];\n}\nelse\n{\n    $k = $i[0] < $i[2];\n}\nif($i[4] == \">\")\n{\n    $l = $i[3] > $i[5];\n}\nelse\n{\n    $l = $i[3] < $i[5];\n}\nif($i[7] == \">\")\n{\n    $m = $i[6] > $i[8];\n}\nelse\n{\n    $m = $i[6] < $i[8];\n}\nif(($k) && ($l) && ($m))\n{\n    print \"ABC\"; //////////////////////////////////////////////////\n}\nelse\n{\n    for($x = 1; $x <= 3; $x++)\n    {\n        $f = array_search(\"A\", $e1);\n        $g = array_search(\"B\", $e1);\n        $h = array_search(\"C\", $e1);\n        if($f == TRUE)\n        {\n            $e1[$f] = 2;\n        }\n        if($g == TRUE)\n        {\n            $e1[$g] = 3;\n        }\n        if($h == TRUE)\n        {\n            $e1[$h] = 1;\n        }   \n    }\n    $i = implode($e1);\n    if($i[1] == \">\")\n    {\n        $k = $i[0] > $i[2];\n    }\n    else\n    {\n        $k = $i[0] < $i[2];\n    }\n    if($i[4] == \">\")\n    {\n        $l = $i[3] > $i[5];\n    }\n    else\n    {\n        $l = $i[3] < $i[5];\n    }\n    if($i[7] == \">\")\n    {\n        $m = $i[6] > $i[8];\n    }\n    else\n    {\n        $m = $i[6] < $i[8];\n    }\n    if(($k) && ($l) && ($m))\n    {\n        print \"CAB\"; //////////////////////////////////////////////////\n    }\n    else\n    {\n        for($x = 1; $x <= 3; $x++)\n        {\n            $f = array_search(\"A\", $e2);\n            $g = array_search(\"B\", $e2);\n            $h = array_search(\"C\", $e2);\n            if($f == TRUE)\n            {\n                $e2[$f] = 3;\n            }\n            if($g == TRUE)\n            {\n                $e2[$g] = 1;\n            }\n            if($h == TRUE)\n            {\n                $e2[$h] = 2;\n            }   \n        }\n        $i = implode($e2);\n        if($i[1] == \">\")\n        {\n            $k = $i[0] > $i[2];\n        }\n        else\n        {\n            $k = $i[0] < $i[2];\n        }\n        if($i[4] == \">\")\n        {\n            $l = $i[3] > $i[5];\n        }\n        else\n        {\n            $l = $i[3] < $i[5];\n        }\n        if($i[7] == \">\")\n        {\n            $m = $i[6] > $i[8];\n        }\n        else\n        {\n            $m = $i[6] < $i[8];\n        }\n        if(($k) && ($l) && ($m))\n        {\n            print \"BCA\"; //////////////////////////////////////////////////\n        }\n        else\n        {\n            for($x = 1; $x <= 3; $x++)\n            {\n                $f = array_search(\"A\", $e3);\n                $g = array_search(\"B\", $e3);\n                $h = array_search(\"C\", $e3);\n                if($f == TRUE)\n                {\n                    $e3[$f] = 3;\n                }\n                if($g == TRUE)\n                {\n                    $e3[$g] = 2;\n                }\n                if($h == TRUE)\n                {\n                    $e3[$h] = 1;\n                }   \n            }\n            $i = implode($e3);\n            if($i[1] == \">\")\n            {\n                $k = $i[0] > $i[2];\n            }\n            else\n            {\n                $k = $i[0] < $i[2];\n            }\n            if($i[4] == \">\")\n            {\n                $l = $i[3] > $i[5];\n            }\n            else\n            {\n                $l = $i[3] < $i[5];\n            }\n            if($i[7] == \">\")\n            {\n                $m = $i[6] > $i[8];\n            }\n            else\n            {\n                $m = $i[6] < $i[8];\n            }\n            if(($k) && ($l) && ($m))\n            {\n                print \"CBA\"; //////////////////////////////////////////////////\n            }\n            else\n            {\n                for($x = 1; $x <= 3; $x++)\n                {\n                    $f = array_search(\"A\", $e4);\n                    $g = array_search(\"B\", $e4);\n                    $h = array_search(\"C\", $e4);\n                    if($f == TRUE)\n                    {\n                        $e4[$f] = 1;\n                    }\n                    if($g == TRUE)\n                    {\n                        $e4[$g] = 3;\n                    }\n                    if($h == TRUE)\n                    {\n                        $e4[$h] = 2;\n                    }   \n                }\n                $i = implode($e4);\n                if($i[1] == \">\")\n                {\n                $k = $i[0] > $i[2];\n                }\n                else\n                {\n                $k = $i[0] < $i[2];\n                }\n                if($i[4] == \">\")\n                {\n                $l = $i[3] > $i[5];\n                }\n                else\n                {\n                $l = $i[3] < $i[5];\n                }\n                if($i[7] == \">\")\n                {\n                $m = $i[6] > $i[8];\n                }\n                else\n                {\n                $m = $i[6] < $i[8];\n                }\n                if(($k) && ($l) && ($m))\n                {\n                    print \"ACB\"; //////////////////////////////////////////////\n                }\n                else\n                {\n                    for($x = 1; $x <= 3; $x++)\n                    {\n                        $f = array_search(\"A\", $e5);\n                        $g = array_search(\"B\", $e5);\n                        $h = array_search(\"C\", $e5);\n                        if($f == TRUE)\n                        {\n                            $e5[$f] = 2;\n                        }\n                        if($g == TRUE)\n                        {\n                            $e5[$g] = 1;\n                        }\n                        if($h == TRUE)\n                        {\n                            $e5[$h] = 3;\n                        }   \n                    }\n                    $i = implode($e5);\n                    if($i[1] == \">\")\n                    {\n                        $k = $i[0] > $i[2];\n                    }\n                    else\n                    {\n                        $k = $i[0] < $i[2];\n                    }\n                    if($i[4] == \">\")\n                    {\n                        $l = $i[3] > $i[5];\n                    }\n                    else\n                    {\n                        $l = $i[3] < $i[5];\n                    }\n                    if($i[7] == \">\")\n                    {\n                        $m = $i[6] > $i[8];\n                    }\n                    else\n                    {\n                        $m = $i[6] < $i[8];\n                    }\n                    if(($k) && ($l) && ($m))\n                    {\n                        print \"BAC\"; ///////////////////////////////////////\n                    }\n                    else\n                    {\n                        print \"Impossible\";\n                    }\n                }\n            }\n        }\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7ee365fa67770c0783904974268fcd79", "src_uid": "97fd9123d0fb511da165b900afbde5dc", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = array(\"0\");\n$d = 1;\n$e = -1;\nfor($x = 1; $x <= 1000; $x++)\n{\n    if(($x % 2) != 0)\n    {\n        array_push($c, $d);\n        array_push($c, $d);\n        $d++;\n    }\n    else\n    {\n        array_push($c, $e);\n        array_push($c, $e);\n        $e--;\n    }\n}\n$f = array(\"0\", \"0\");\n$g = 1;\n$h = -1;\nfor($x = 1; $x <= 1000; $x++)\n{\n    if(($x % 2) != 0)\n    {\n        array_push($f, $g);\n        array_push($f, $g);\n        $g++;\n    }\n    else\n    {\n        array_push($f, $h);\n        array_push($f, $h);\n        $h--;\n    }\n}\n$i = array();\n$j = 1;\n$k = -1;\nfor($x = 1; $x <= 1000; $x++)\n{\n    if(($x % 2) != 0)\n    {\n        array_push($i, $j);\n        array_push($i, $j);\n        $j++;\n    }\n    else\n    {\n        array_push($i, $k);\n        array_push($i, $k);\n        $k--;\n    }\n}\n$l = array(\"0\");\n$m = 1;\n$n = -1;\nfor($x = 1; $x < 1000; $x++)\n{\n    if(($x % 2) != 0)\n    {\n        array_push($l, $m);\n        array_push($l, $m);\n        $m++;\n    }\n    else\n    {\n        array_push($l, $n);\n        array_push($l, $n);\n        $n--;\n    }\n}\nfor($x = 0; $x < 10000; $x++)\n{\n    if(($a >= min($c[$x], $i[$x])) && ($a <= max($c[$x], $i[$x])) && ($b >= min($f[$x], $l[$x])) && ($b <= max($f[$x], $l[$x])))\n    {\n        break;\n    }\n}\nprint $x;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "geometry", "implementation"], "code_uid": "4c6f66d37fe47e61c92136e0a9d5d85e", "src_uid": "2fb2a129e01efc03cfc3ad91dac88382", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $arr = explode(' ',  trim(fgets(STDIN)));\n    $x = $arr[0];\n    $y = $arr[1];\n\n  \n    if (($x==0 && $y==0)||($x==1 && $y==0))\n    {\n        $k=0;\n    }\n    else if ($y>0 && $x<$y && $x>=-$y)\n    {\n        $k=($y-1)*4 + 2;\n    }\n    else if ($y<0 && $x>$y && $x<=(-$y+1))\n    {\n        $k=(-$y)*4;\n    }\n    else if ($x<0 && $y>=$x && $y<-$x)\n    {\n        $k=(-$x)*4 -1;\n    }\n    else\n    {\n        $k=($x-1)*4 + 1;\n    }\n    echo $k;\n   \n?>\n", "lang_cluster": "PHP", "tags": ["brute force", "geometry", "implementation"], "code_uid": "ae195347e32d8c5e64572b8a996e6e34", "src_uid": "2fb2a129e01efc03cfc3ad91dac88382", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n//input\n$s = fopen(\"php://stdin\", 'r');\n$n = stream_get_contents($s);\n$lines = explode(\"\\n\",$n);\n\n//data\n$xy = explode(\" \",$lines[0]);\n$x = $xy[0];\n$y = $xy[1];\n$result = 0;\n\n//calc\nif (abs($y)>=abs($x))\n{\n    if ($y>0)\n        $result = 2+(abs($y)-1)*4 - 1 + (($x == abs($y))?0:1);\n    else\n        $result = 4+(abs($y)-1)*4 - 1 + ($x==-abs($y)&&$x!=0?0:1);\n} else\n{\n    if ($x>0)\n        $result = 1+(abs($x)-1)*4 - 1  + ($y==-(abs($x)-1)||$y==abs($x)||$y==0&&$x==1?0:1);\n    else\n        $result = 3+(abs($x)-1)*4 - 1 + (($y == abs($x))?0:1);\n        \n}\n\n//output\n$stdout = fopen('php://stdout', 'w');\nfputs ($stdout, $result);\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "geometry", "implementation"], "code_uid": "28c419e755dcb51f399e258ed20e6f47", "src_uid": "2fb2a129e01efc03cfc3ad91dac88382", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\".\", trim(fgets(STDIN)));\nlist($d, $e, $f) = explode(\".\", trim(fgets(STDIN)));\n$g = array($d, $e, $f);\n$h = array($d, $f, $e);\n$i = array($e, $d, $f);\n$j = array($e, $f, $d);\n$k = array($f, $d, $e);\n$l = array($f, $e, $d);\n$m = array(1 => 31, 2 => 28, 3 => 31, 4 => 30, 5 => 31, 6 => 30, 7 => 31, 8 => 31, 9 => 30, 10 => 31, 11 => 30, 12 => 31);\n$m_2 = array(1 => 31, 2 => 29, 3 => 31, 4 => 30, 5 => 31, 6 => 30, 7 => 31, 8 => 31, 9 => 30, 10 => 31, 11 => 30, 12 => 31);\n$n = 0;\nif($c % 4 == 1)\n{\n     if($g[1] <= 12)\n     {\n          if($g[0] <= $m[intval($g[1])])\n          {\n               if(($g[0] == 29) && ($g[1] == 2) && ($g[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($g[0] == 29) && ($g[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $g[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $g[0];\n                    $p = $g[1];\n                    $r = $g[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($h[1] <= 12)\n     {\n          if($h[0] <= $m[intval($h[1])])\n          {\n               if(($h[0] == 29) && ($h[1] == 2) && ($h[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($h[0] == 29) && ($h[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $h[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $h[0];\n                    $p = $h[1];\n                    $r = $h[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($i[1] <= 12)\n     {\n          if($i[0] <= $m[intval($i[1])])\n          {\n               if(($i[0] == 29) && ($i[1] == 2) && ($i[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($i[0] == 29) && ($i[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $i[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $i[0];\n                    $p = $i[1];\n                    $r = $i[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($j[1] <= 12)\n     {\n          if($j[0] <= $m[intval($j[1])])\n          {\n               if(($j[0] == 29) && ($j[1] == 2) && ($j[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($j[0] == 29) && ($j[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $g[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $j[0];\n                    $p = $j[1];\n                    $r = $j[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($k[1] <= 12)\n     {\n          if($k[0] <= $m[intval($k[1])])\n          {\n               if(($k[0] == 29) && ($k[1] == 2) && ($k[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($k[0] == 29) && ($k[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $k[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $k[0];\n                    $p = $k[1];\n                    $r = $k[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($l[1] <= 12)\n     {\n          if($l[0] <= $m[intval($l[1])])\n          {\n               if(($l[0] == 29) && ($l[1] == 2) && ($l[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($l[0] == 29) && ($l[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $l[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $l[0];\n                    $p = $l[1];\n                    $r = $l[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($n == 1)\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\nelse\n{\n     if($g[1] <= 12)\n     {\n          if($g[0] <= $m_2[intval($g[1])])\n          {\n               if(($g[0] == 29) && ($g[1] == 2) && ($g[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($g[0] == 29) && ($g[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $g[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $g[0];\n                    $p = $g[1];\n                    $r = $g[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($h[1] <= 12)\n     {\n          if($h[0] <= $m_2[intval($h[1])])\n          {\n               if(($h[0] == 29) && ($h[1] == 2) && ($h[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($h[0] == 29) && ($h[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $h[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $h[0];\n                    $p = $h[1];\n                    $r = $h[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($i[1] <= 12)\n     {\n          if($i[0] <= $m_2[intval($i[1])])\n          {\n               if(($i[0] == 29) && ($i[1] == 2) && ($i[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($i[0] == 29) && ($i[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $i[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $i[0];\n                    $p = $i[1];\n                    $r = $i[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($j[1] <= 12)\n     {\n          if($j[0] <= $m_2[intval($j[1])])\n          {\n               if(($j[0] == 29) && ($j[1] == 2) && ($j[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($j[0] == 29) && ($j[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $g[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $j[0];\n                    $p = $j[1];\n                    $r = $j[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($k[1] <= 12)\n     {\n          if($k[0] <= $m_2[intval($k[1])])\n          {\n               if(($k[0] == 29) && ($k[1] == 2) && ($k[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($k[0] == 29) && ($k[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $k[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $k[0];\n                    $p = $k[1];\n                    $r = $k[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($l[1] <= 12)\n     {\n          if($l[0] <= $m_2[intval($l[1])])\n          {\n               if(($l[0] == 29) && ($l[1] == 2) && ($l[2] % 4 != 0))\n               {\n                    $n = 0;\n               }\n               elseif(($l[0] == 29) && ($l[1] == 2))\n               {\n                    $o = 1;\n                    $p = 3;\n                    $r = $l[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n               else\n               {\n                    $o = $l[0];\n                    $p = $l[1];\n                    $r = $l[2] + 18;\n                    if($c > $r)\n                    {\n                         $n = 1;\n                    }\n                    elseif($c == $r)\n                    {\n                         if($b > $p)\n                         {\n                              $n = 1;\n                         }\n                         elseif($b == $p)\n                         {\n                              if($a >= $o)\n                              {\n                                   $n = 1;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     if($n == 1)\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "04ea8126526e3e0568c2df167ed3b4dc", "src_uid": "5418c98fe362909f7b28f95225837d33", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split($a);\n$c = count($b);\nfor($x = 0; $x < $c; $x++)\n{\n    if($b[$x] == \" \")\n    {\n        unset($b[$x]);\n    }\n}\n$i = $b;\nsort($i);\n$j = array_keys($i);\n$k = array_combine($j, $b);\n$d = strtoupper($k[count($k) - 2]);\n$e = array(\" \", \"A\", \"E\", \"I\", \"O\", \"U\", \"Y\");\nunset($e[0]);\n$f = array(\" \", \"B\", \"C\", \"D\", \"F\", \"G\", \"H\", \"J\", \"K\", \"L\", \"M\", \"N\", \"P\", \"Q\", \"R\", \"S\", \"T\", \"V\", \"W\", \"X\", \"Z\");\nunset($f[0]);\n$g = array_search($d, $e);\n$h = array_search($d, $f);\nif($g > 0)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "250a7168f10b2c97440a3238c6d799e6", "src_uid": "dea7eb04e086a4c1b3924eff255b9648", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $input = readline();\n    $input = str_replace(' ', '', $input);\n    $input = strtolower($input);\n    $inputArray = str_split($input);\n    $sizeArray = count($inputArray);\n    $array = array(\"a\", \"e\", \"i\", \"o\", \"u\", \"y\");\n    $ban = false;\n    foreach ($array as $key=>$valor) {\n        if ($valor == $inputArray[$sizeArray-2]) {\n            $ban = true;\n            break;\n        }\n    }\n    if ($ban) {\n        echo \"YES\";\n    }else{\n        echo \"NO\";\n    }\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "672f1c653f1ba26d76b0a0c6f1d3e502", "src_uid": "dea7eb04e086a4c1b3924eff255b9648", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$n=trim(fgets(STDIN));\n$a=explode(\" \",trim(fgets(STDIN)));\nif($n==1){\n    if($a[0]==15){\n        echo\"DOWN\";\n    }elseif($a[0]==0){\n        echo\"UP\";\n    }else echo-1;\n}elseif($a[$n-1]>$a[$n-2]&&$a[$n-1]!=15||$a[$n-1]==0){\n    echo\"UP\";\n}else{\n    echo\"DOWN\";\n}\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e364a1ebbf1b9d1a675fa06afa08c277", "src_uid": "8330d9fea8d50a79741507b878da0a75", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n###### IO ######\nerror_reporting(E_ALL);\nerror_reporting(0);\n\nfunction readString($f) {\n\t$r = array(\n\t\t\"\\r\" => '',\n\t\t\"\\n\" => '',\n\t);\n\treturn strtr(fgets($f), $r);\n}\n\nfunction readNumString($f) {\n\treturn trim(fgets($f));\n}\n\nfunction stringToArray($str) {\n\treturn str_split($str);\n}\n\nfunction readNum($f, $is_int = false) {\n\t$v = readNumString($f);\n\treturn $is_int ? intval($v) : floatval($v);\n}\n\nfunction readStringExplode($f, $delimiter = ' ') {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = 'trim';\n\treturn array_map($callf, $return);\n}\n\nfunction readStringExplodeNum($f, $delimiter = ' ', $is_int = false) {\n\t$v = readNumString($f);\n\tif ($delimiter == '') {\n\t\t$return = stringToArray($v);\n\t} else {\n\t\t$return = explode($delimiter, $v);\n\t}\n\t$callf = $is_int ? 'intval' : 'floatval';\n\treturn array_map($callf, $return);\n}\n\n###### /IO ######\n\nfunction getAnswer($is_test = false, $f = false) {\n\tif ($is_test)\n\t\t$stream = $f;\n\telse\n\t\t$stream = STDIN;\n\t/* begin body */\n\t$n = readNum($stream);\n\t$nums = readStringExplodeNum($stream, ' ', true);\n\tif ($n == 1) {\n\t\t$num = array_pop($nums);\n\t\tif ($num == 15) {\n\t\t\techo 'DOWN';\n\t\t} elseif ($num == 0) {\n\t\t\techo 'UP';\n\t\t} else {\n\t\t\techo -1;\n\t\t}\n\t} else {\n\n\n\t\t$nums = array_slice($nums, count($nums) - 2);\n\t\t$isDec = true;\n\t\tif ($nums[0] < $nums[1]) {\n\t\t\t$isDec = false;\n\t\t}\n\t\t$nums[2] = $nums[1] + 1;\n\t\tif ($isDec && $nums[1] > 0) {\n\t\t\t$nums[2] = $nums[1] - 1;\n\t\t}\n\t\tif ($nums[2] > 15) {\n\t\t\t$nums[2] = $nums[1] - 1;\n\t\t}\n\n\t\tif ($nums[2] > $nums[1]) {\n\t\t\techo 'UP';\n\t\t} else {\n\t\t\techo 'DOWN';\n\t\t}\n\t}\n\t/* / end body */\n}\n\nif (empty($is_test))\n\tgetAnswer();", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "9c2f4f89e0bdd4a0e934d9195793c3c0", "src_uid": "8330d9fea8d50a79741507b878da0a75", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$num=trim(fgets(STDIN));\nfor ($i=0; $i < $num; $i++) {\n   $moon[]=explode(\" \",trim(fgets(STDIN)));\n    }\nif ($num == 1 and $moon[0][$num - 1] != 15 and $moon[0][$num - 1] != 0) {\n     echo \"-1\";\n}elseif ($moon[0][$num - 1] == 15 or  $moon[0][$num - 1] < $moon[0][$num - 2] and $moon[0][$num - 1] != 0) {\n    echo \"DOWN\";\n}elseif ($moon[0][$num - 1] > $moon[0][$num - 2] or $moon[0][$num - 1] == 0) {\n    echo \"UP\";\n}else echo -1; \n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e4affe178df076c0d10bceabbcd74db5", "src_uid": "8330d9fea8d50a79741507b878da0a75", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nif($a == 1)\n{\n     if($b[0] == 0)\n     {\n          print \"UP\";\n     }\n     elseif($b[0] == 15)\n     {\n          print \"DOWN\";\n     }\n     else\n     {\n          print \"-1\";\n     }\n}\nelse\n{\n     if(($b[$a - 1] == 15) && ($b[$a - 2] == 14))\n     {\n          print \"DOWN\";\n     }\n     elseif(($b[$a - 1] == 0) && ($b[$a - 2] == 1))\n     {\n          print \"UP\";\n     }\n     elseif($b[$a - 1] > $b[$a - 2])\n     {\n          print \"UP\";\n     }\n     elseif($b[$a - 1] < $b[$a - 2])\n     {\n          print \"DOWN\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "321cccee5a2692790f32cab66d57b611", "src_uid": "8330d9fea8d50a79741507b878da0a75", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = array_unique($b);\nsort($c);\nif($c[0] == 0)\n{\n     print count($c) - 1;\n}\nelse\n{\n     print count($c);\n}\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation"], "code_uid": "f29f5d9ed8971e19b9a92534182886e9", "src_uid": "3b520c15ea9a11b16129da30dcfb5161", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e) = explode(\" \", trim(fgets(STDIN)));\n$f = $c / 60;\n$b += $f;\n$g = $b / 60;\n$a += $g;\n$b /= 5;\n$c /= 5;\n$h = min($d, $e);\n$i = max($d, $e);\nif((($a > $h) && ($a < $i)) || (($b > $h) && ($b < $i)) || (($c > $h) && ($c < $i)))\n{\n     if(($a < $h) || ($b < $h) || ($c < $h) || ($a > $i) || ($b > $i) || ($c > $i))\n     {\n          print \"NO\";\n     }\n     else\n     {\n          print \"YES\";\n     }\n}\nelse\n{\n     print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "7b405d115317ee3556469cb7b61c8557", "src_uid": "912c8f557a976bdedda728ba9f916c95", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = 0;\n$e = array();\n$f = array();\nfor($x = 1; $x <= $a / $b; $x++)\n{\n    for($y = 0; $y < $b; $y++)\n    {\n        if($c[$d] == 1)\n        {\n            $e[$y] += 1;\n        }\n        else\n        {\n            $e[$y] += 0;\n        }\n        $d++;\n    }\n}\n$g = $a / $b;\n$h = array_fill(0, $b, $g);\n$j = 0;\nfor($x = 0; $x < count($e); $x++)\n{\n    if(($e[$x] == 0) || ($e[$x] == $g))\n    {\n        continue;\n    }\n    else\n    {\n        $i = $g / 2;\n        if($e[$x] >= $i)\n        {\n            $j += $g - $e[$x];\n        }\n        else\n        {\n            $j += $e[$x];\n        }\n    }\n}\nprint $j;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation"], "code_uid": "5dd3df7a2df93eb075110c55ad08554e", "src_uid": "5f94c2ecf1cf8fdbb6117cab801ed281", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$in = trim(fgets(STDIN));\n\n$friends = array(\"Danil\", \"Olya\", \"Slava\", \"Ann\", \"Nikita\");\n\n$c = 0;\nforeach($friends as $friend)\n{\n  $c += substr_count($in, $friend);\n  \n  if($c > 1)\n  {\n    break;\n  }\n}\n\necho ($c == 1) ? \"YES\" : \"NO\";", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "37b4faddf0661dd7c605b3c035a438f9", "src_uid": "db2dc7500ff4d84dcc1a37aebd2b3710", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$str=trim(readline());\n$names=array();\n$names=[\n\t        \"Danil\",\n\t        \"Olya\",\n\t        \"Slava\",\n\t        \"Ann\",\n\t        \"Nikita\"\n       ];\n$count=0;\n for ($i=0; $i <count($names) ; $i++) \n { \n \t\t$name=$names[$i];\n \t\t$count+=substr_count($str,$name);\n \t\t\t//$count++;\n\t\t\n              \n} \nif($count==1)\n  echo \"YES\";\n  else\n  echo \"NO\";    \n\n\n \n", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "c41b72213ed0e8f96bb27034ff55b446", "src_uid": "db2dc7500ff4d84dcc1a37aebd2b3710", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = \" \" . trim(fgets(STDIN));\n$b = array(\"Danil\", \"Olya\", \"Slava\", \"Ann\", \"Nikita\");\n$c = 0;\nfor($x = 0; $x < 5; $x++)\n{\n     $d = strpos($a, $b[$x]);\n     if($d == TRUE)\n     {\n          $c++;\n          $e = \" \" . $a;\n          $f = substr($e, $d + 2);\n          $g = strpos($f, $b[$x]);\n          if($g == TRUE)\n          {\n               $c++;\n          }\n     }\n}\nif($c == 1)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "99e0de23342e1eb0b994db3025915930", "src_uid": "db2dc7500ff4d84dcc1a37aebd2b3710", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\nif($a < $c)\n{\n     print \"-1\";\n}\nelse\n{\n     $a -= $c;\n     if($b < $c)\n     {\n          print \"-1\";\n     }\n     else\n     {\n          $b -= $c;\n          if($d <= $a + $b + $c)\n          {\n               print \"-1\";\n          }\n          else\n          {\n               print $d -= $a + $b + $c;\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1d4f721084b3bd3172264da015b45a06", "src_uid": "959d56affbe2ff5dd999a7e8729f60ce", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\t$s = str_split(trim(fgets(STDIN)));\n\t\n\t$c = array_count_values($s);\n\t\n\t$c = array_values($c);\n\tsort($c);\n\t\n\t$res = null;\n\t\n\tif($c == [6] || $c == [1, 5]) $res = 1;\n\tif($c == [2, 4] || $c == [3, 3] || $c == [1, 1, 4]) $res = 2;\n\tif($c == [1, 2, 3]) $res = 3;\n\tif($c == [1, 1, 1, 3]) $res = 5;\n\tif($c == [2, 2, 2]) $res = 6;\n\tif($c == [1, 1, 2, 2]) $res = 8;\n\tif($c == [1, 1, 1, 1, 2]) $res = 15;\n\tif($c == [1, 1, 1, 1, 1, 1]) $res = 30;\n\n\techo $res;", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "c903ede12d67bf428f636aba4a67f7e2", "src_uid": "8176c709c774fa87ca0e45a5a502a409", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nfor($x = 1; $x <= 1000000; $x++)\n{\n    $a++;\n    $b = str_split($a);\n    array_unshift($b, \" \");\n    unset($b[0]);\n    $c = array_search(\"8\", $b);\n    if($c == TRUE)\n    {\n        break;\n    }\n}\nprint $x;\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "04f1f4a517824d680fd9721d342fb89b", "src_uid": "4e57740be015963c190e0bfe1ab74cb9", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = 0;\n$f = $a;\n$f--;\n$g = 0;\nwhile(TRUE)\n{\n     if($c >= $f)\n     {\n          $g = $a * $d;\n          $b -= $g;\n          $c -= $f;\n          $e++;\n          if($b <= 0)\n          {\n               break;\n          }\n     }\n     elseif($c > 0)\n     {\n          $g = ($c + 1) * $d;\n          $b -= $g;\n          $c = 0;\n          $e++;\n          if($b <= 0)\n          {\n               break;\n          }\n     }\n     elseif($c == 0)\n     {\n          $b -= $d;\n          $e++;\n          if($b <= 0)\n          {\n               break;\n          }\n     }\n}\nprint $e;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "467b03f5ad2b4c3a6813d761545ab42e", "src_uid": "7cff20b1c63a694baca69bdf4bdb2652", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($maxSections, $numberOfNuts, $numberOfDivisors, $sectionCapacity) = explode(\" \", trim(fgets(STDIN)));\n\n$numberOfBoxes = 1;\n$divisorsInBox = 0;\n$nutsInBox = 0;\nwhile($numberOfNuts > 0)\n{\n\tif($nutsInBox < $sectionCapacity)\n\t{\n\t\t++$nutsInBox;\n\t\t--$numberOfNuts;\n\t\tcontinue;\n\t}\n\n\t//echo \"Reached section capacity at $nutsInBox\" . PHP_EOL;\n\t\n\tif($divisorsInBox < ($maxSections - 1) && $numberOfDivisors > 0)\n\t{\n\t\t$nutsInBox = 0;\n\t\t\n\t\t++$divisorsInBox;\n\t\t--$numberOfDivisors;\n\t\tcontinue;\n\t}\n\n\t//echo \"reached divisional capacity with $divisorsInBox\" . PHP_EOL;\n\n\t++$numberOfBoxes;\n\t$divisorsInBox = 0;\n\t$nutsInBox = 0;\n}\n\necho $numberOfBoxes . PHP_EOL;", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "1c0c7b7109b6760f0dbdabe2a7b88290", "src_uid": "7cff20b1c63a694baca69bdf4bdb2652", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/** chaotic_iak's solution in PHP 5.4 to the problem 321A (Round 190 Div 2 Problem C) in Codeforces **/\n\n/** Module for retrieving input **/\n\n// If this is a local test (a variable declared in a specialized page to open this script), open from localtest.txt instead of php://stdin (because I'm too lazy to supply the arguments by stdin)\nif (isset($localtest)) {$stdin = fopen(\"localtest.txt\", \"r\");} else {$stdin = fopen(\"php://stdin\", \"r\");}\n\n// A function to retrieve the next line. Takes one optional argument $single, which should be true if the next line (based on problem's specification) has only one number/string/whatever, so I don't have to do silly things like $raw = g(); $num = $raw[0];\nfunction g($single = false) {\n\n\t// Take the global $stdin variable aka the file handler so we can access it from this function\n\tglobal $stdin;\n\t\n\t// Take the input from the handler, trim it, and explode it based on space (\" 1 2 3 \" becomes array(\"1\", \"2\", \"3\")); trim is usually to remove trailing \\r\n\t$input = explode(\" \", trim(fgets($stdin)));\n\t\n\t// If the line is not a single number, return the whole array, otherwise simply return the single string that we exploded for nothing\n\tif (!$single) {return $input;} else {return $input[0];}\n}\n\n/** Imported functions from chaotic_iak's library **/\n// none\n\n/** chaotic_iak's solution **/\n// This is a competitive programming solution. The code is not remarked (because I want speed).\n\n$raw = g();\n$a = $raw[0];\n$b = $raw[1];\n$s = g(true);\n$len = strlen($s);\n\n$xpass = array(0);\n$ypass = array(0);\n$x = 0;\n$y = 0;\nfor ($i = 0; $i < $len; $i++) {\n\tswitch (substr($s, $i, 1)) {\n\t\tcase \"U\":\n\t\t\t$y++;\n\t\t\tbreak;\n\t\tcase \"R\":\n\t\t\t$x++;\n\t\t\tbreak;\n\t\tcase \"L\":\n\t\t\t$x--;\n\t\t\tbreak;\n\t\tcase \"D\":\n\t\t\t$y--;\n\t\t\tbreak;\n\t}\n\t$xpass[] = $x;\n\t$ypass[] = $y;\n}\n\n$xmax = $xpass[$len];\n$ymax = $ypass[$len];\n\nfor ($i = 0; $i < $len; $i++) {\n\t$diffx = -1;\n\t$diffy = -1;\n\tif ($xmax == 0) {\n\t\tif ($xpass[$i] == $a) {$diffx = 1234567890;}\n\t} else {\n\t\t$temp = ($a - $xpass[$i]) % $xmax;\n\t\tif (!$temp) {$diffx = ($a - $xpass[$i]) / $xmax;}\n\t}\n\tif ($ymax == 0) {\n\t\tif ($ypass[$i] == $b) {$diffy = 1234567890;}\n\t} else {\n\t\t$temp = ($b - $ypass[$i]) % $ymax;\n\t\tif (!$temp) {$diffy = ($b - $ypass[$i]) / $ymax;}\n\t}\n\tif ((($diffx == 1234567890) || ($diffy == 1234567890) || ($diffx == $diffy)) && ($diffx >= 0) && ($diffy >= 0)) {\n\t\techo \"Yes\"; return 0;\n\t}\n}\necho \"No\";", "lang_cluster": "PHP", "tags": ["math", "implementation", "number theory"], "code_uid": "14c8b2ca2dc0c7ea20da377dbf069aa8", "src_uid": "5d6212e28c7942e9ff4d096938b782bf", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n$fileIN = fopen(\"php://stdin\", \"r\");\n$fileOUT = fopen(\"php://stdout\", \"w\");\n\n$line = trim(fgets($fileIN));\n$line = explode(\" \", $line);\n$n = $line[0];\n$k = $line[1];\n\n$line = trim(fgets($fileIN));\n$line = explode(\" \", $line);\n\n$a = array();\n\nfor ($i = 0; $i <= $n; ++$i) {\n    $a[$i] = 0;\n}\n\nfor ($i = 0; $i < $k; ++$i) {\n    for ($j = $line[$i]; $j <= $n; ++$j) {\n        if ($a[$j] == 0) {\n            $a[$j] = $line[$i];\n        }\n    }\n}\n\nfor ($i = 1; $i <= $n; ++$i) {\n    fprintf($fileOUT, $a[$i] . \" \");\n}\n\nfclose($fileIN);\nfclose($fileOUT);\n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "1c2da1a2fdf6ea76397849f47906251e", "src_uid": "2e44c8aabab7ef7b06bbab8719a8d863", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\ndefine('LOCAL_ENV', false);\nif (LOCAL_ENV) {\n    error_reporting(E_ALL & !E_NOTICE);\n    $test = <<<INPUT\n5 4\n4 3 1 2\nINPUT;\n    $stdin = fopen('php://temp/in', 'rw');\n    fwrite($stdin, $test);\n    rewind($stdin);\n} else {\n    error_reporting(0);\n    $stdin = STDIN;\n}\ndefine('MY_STDIN', $stdin);\n\nlist($n,$m) = explode(' ', trim(fgets(MY_STDIN)));\n$a = explode(' ', trim(fgets(MY_STDIN)));\n$aa = array_fill(1, $n, 0);\nforeach ($a as $k) {\n    for ($i = $k; $i <= $n; $i++) {\n        if ($aa[$i] == 0) {\n            $aa[$i] = $k;\n        }\n    }\n}\necho join(' ', $aa);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a5d4ac7c3376776abe989f39ee112a3e", "src_uid": "2e44c8aabab7ef7b06bbab8719a8d863", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "    <?php\n    list($a, $b) = explode(\" \", trim(fgets(STDIN)));\n    if(($a == 1) && ($b == 1))\n    {\n         print \"0\";\n    }\n    else\n    {\n         $c = trim(fgets(STDIN));\n         for($x = 0; $x < $a; $x++)\n         {\n              if($b == 0)\n              {\n                   break;\n              }\n              else\n              {\n                   if($x == 0)\n                   {\n                        if($c[$x] != \"1\")\n                        {\n                             $c[$x] = \"1\";\n                             $b--;\n                        }\n                   }\n                   else\n                   {\n                        if($c[$x] != \"0\")\n                        {\n                             $c[$x] = \"0\";\n                             $b--;\n                        }\n                   }\n              }\n         }\n         print $c;\n    }\n    ?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "85caa8e7a1eeed03f4ab064fcd76dc3d", "src_uid": "0515ac888937a4dda30cad5e2383164f", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/**\n * Created by PhpStorm.\n * User: coder\n * Date: 2018/3/12\n * Time: 上午10:38\n */\n\nwhile (fscanf(STDIN, \"%d %d %d\", $l, $r, $a)) {\n  if ($l == 0 && $r == 0) {\n    $result = $a - $a % 2;\n  } else if ($l == 0 || $r == 0) {\n    if ($a == 0) {\n      $result = 0;\n    } else {\n      $result = ($l + $r) * 2 + ($a - $l - $r) - ($a - $l - $r) % 2;\n    }\n  } else if ($l != $r) {\n    $diff = abs($l - $r);\n    if ($diff > $a) {\n      $result = ((($l + $r) - $diff) / 2 + $a) * 2;\n    } else {\n      $result = (($l + $r) + $diff) + ($a - $diff) - ($a - $diff) % 2;\n    }\n  } else if ($l == $r) {\n    $result = $l + $l + $a - $a % 2;\n  }\n  print $result;\n  fprintf(STDOUT, \"$d\\n\", $result);\n}", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "d8bf3872c046c52163960d7094599725", "src_uid": "e8148140e61baffd0878376ac5f3857c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nfor($x = 1; $x <= $c; $x++)\n{\n     if($a < $b)\n     {\n          $a++;\n     }\n     else\n     {\n          $b++;\n     }\n}\n$d = min($a, $b) * 2;\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "4ab8ff20e686aba2d79b5faf54e10a0a", "src_uid": "e8148140e61baffd0878376ac5f3857c", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a == 54)\n{\n     print \"36028797018963966\";\n}\nelseif($a == 55)\n{\n     print \"72057594037927934\";\n}\nelse\n{\n     $b = array();\n     $c = 1;\n     $d = 0;\n     for($x = 1; $x <= 55; $x++)\n     {\n          $c *= 2;\n          $d += $c;\n          $b[$x] = $d;\n     }\n     $e = $b[$a];\n     printf(\"%.0f\", $e);\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "combinatorics"], "code_uid": "5d587bfce69ccf0cf46f09f24873908b", "src_uid": "f1b43baa14d4c262ba616d892525dfde", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = 2;\n$d = 2;\n$e = 0;\nfor($x = 1; $x <= $a; $x++)\n{\n     if($x != 1)\n     {\n          if($c < $b)\n          {\n               $e = 0;\n               $c *= $d;\n          }\n          elseif($c == $b)\n          {\n               $e = 1;\n               $c *= $d;\n               break;\n          }\n          elseif($c > $b)\n          {\n               $e = 2;\n               break;\n          }\n     }\n}\nif($e == 0)\n{\n     $f = $b % $c;\n}\nelseif($e == 1)\n{\n     $f = $b % $c;\n}\nelseif($e == 2)\n{\n     $f = $b;\n}\nprint $f;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "6e8f3b2475168415d111c7ecc6c15afd", "src_uid": "c649052b549126e600691931b512022f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=trim(fgets(STDIN));\n$b=trim(fgets(STDIN));\nif($a>=$b || ($a>50 && sqrt($b)<$a)){\n    echo $b;\n}else{\n    $s=1;\n    for($i=0;$i<$a;$i++)\n    {\n        $s*=2;\n    }\n    echo ($s>$b)?$b:$b%$s;\n}\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "49dcdc3cc516bfdcd78565699e624803", "src_uid": "c649052b549126e600691931b512022f", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array();\n$d = \"\";\nfor($x = 0; $x < $a; $x++)\n{\n     if(ctype_lower($b[$x]) == TRUE)\n     {\n          $d .= $b[$x];\n     }\n     else\n     {\n          $c[count($c)] = $d;\n          $d = \"\";\n     }\n}\nif(strlen($d) > 0)\n{\n     $c[count($c)] = $d;\n     $d = \"\";\n}\n$e = 0;\nfor($x = 0; $x < count($c); $x++)\n{\n     $f = array_unique(str_split($c[$x]));\n     sort($f);\n     if($f[0] == NULL)\n     {\n          $f = 0;\n     }\n     else\n     {\n          $f = count($f);\n     }\n     $e = max($e, $f);\n}\nprint $e;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "strings", "implementation"], "code_uid": "d6500951fd4f8b23247163662592358e", "src_uid": "567ce65f87d2fb922b0f7e0957fbada3", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$a = array(\n\texplode(\" \" , trim(fgets(STDIN))),\n\texplode(\" \" , trim(fgets(STDIN))),\n\texplode(\" \" , trim(fgets(STDIN)))\n);\nfor($i=0;$i<3;$i++) {\n\tfor($j=0;$j<3;$j++) {\n\t\t$t = ( 1 + $a[$i][$j]\n\t\t\t+ (isset($a[$i+1][$j])?$a[$i+1][$j]:0)\t\n\t\t\t+ (isset($a[$i-1][$j])?$a[$i-1][$j]:0)\n\t\t\t+ (isset($a[$i][$j+1])?$a[$i][$j+1]:0)\n\t\t\t+ (isset($a[$i][$j-1])?$a[$i][$j-1]:0)\n\t\t) % 2;\n\t\techo $t;\n\t}\n\techo \"\\n\";\n}\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "316d5a8ea27d5769ff5b77a76f7a00d4", "src_uid": "b045abf40c75bb66a80fd6148ecc5bd6", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $arr = array(\n            explode(' ', trim(fgets(STDIN))),\n            explode(' ', trim(fgets(STDIN))),\n            explode(' ', trim(fgets(STDIN)))\n        );\n    \n    for ($i=0; $i<3; $i++)\n    {\n        for ($j=0; $j<3; $j++)\n        {\n            $z = (1 + $arr[$i][$j] + \n                    (isset($arr[$i-1][$j])?$arr[$i-1][$j]:0) +\n                    (isset($arr[$i+1][$j])?$arr[$i+1][$j]:0) +\n                    (isset($arr[$i][$j-1])?$arr[$i][$j-1]:0) +\n                    (isset($arr[$i][$j+1])?$arr[$i][$j+1]:0)\n                ) % 2;\n            echo $z;\n        }\n        echo \"\\n\";\n    }\n        \n    \n    \n?>\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a640f980b8fefd26c29aa9f17f537f3c", "src_uid": "b045abf40c75bb66a80fd6148ecc5bd6", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n$a = explode(' ',trim(fgets(STDIN)));\n $b = explode(' ',trim(fgets(STDIN)));\n  $c = explode(' ',trim(fgets(STDIN)));\n$mass = array(\narray($a[0],$a[1],$a[2]),\narray($b[0],$b[1],$b[2]),\narray($c[0],$c[1],$c[2]),\n);\n$s = array(\narray(1,1,1),\narray(1,1,1),\narray(1,1,1),\n);\n$t=0;\nif($mass[0][0]%2 != 0 ) {$s[0][1] = 0; $s[0][0] = 0; $s[1][0] = 0; }\nif($mass[0][1]%2 != 0 ) \n{ \nif($s[0][1] == 0) $s[0][1] = 1; else $s[0][1] = 0;\nif($s[0][0] == 0) $s[0][0] = 1; else $s[0][0] = 0;\nif($s[1][1] == 0) $s[1][1] = 1; else $s[1][1] = 0;\nif($s[0][2] == 0) $s[0][2] = 1; else $s[0][2] = 0;\n}\nif($mass[0][2]%2 != 0) \n{ \nif($s[0][2] == 0) $s[0][2] = 1; else $s[0][2] = 0;\nif($s[0][1] == 0) $s[0][1] = 1; else $s[0][1] = 0;\nif($s[1][2] == 0) $s[1][2] = 1; else $s[1][2] = 0;\n}\nif($mass[1][0]%2 != 0) \n{\nif($s[1][0] == 0) $s[1][0] = 1; else $s[1][0] = 0;\nif($s[0][0] == 0) $s[0][0] = 1; else $s[0][0] = 0;\nif($s[1][1] == 0) $s[1][1] = 1; else $s[1][1] = 0;\nif($s[2][0] == 0) $s[2][0] = 1; else $s[2][0] = 0;\n}\nif($mass[1][1]%2 != 0) \n{\nif($s[1][1] == 0) $s[1][1] = 1; else $s[1][1] = 0; \nif($s[0][1] == 0) $s[0][1] = 1; else $s[0][1] = 0;\nif($s[1][0] == 0) $s[1][0] = 1; else $s[1][0] = 0;\nif($s[1][2] == 0) $s[1][2] = 1; else $s[1][2] = 0;\nif($s[2][1] == 0) $s[2][1] = 1; else $s[2][1] = 0;\n}\nif($mass[1][2]%2 != 0) \n{ \nif($s[1][2] == 0) $s[1][2] = 1; else $s[1][2] = 0;\nif($s[0][2] == 0) $s[0][2] = 1; else $s[0][2] = 0;\nif($s[1][1] == 0) $s[1][1] = 1; else $s[1][1] = 0;\nif($s[2][2] == 0) $s[2][2] = 1; else $s[2][2] = 0;\n}\nif($mass[2][0]%2 != 0) \n{\nif($s[2][0] == 0) $s[2][0] = 1; else $s[2][0] = 0;\nif($s[1][0] == 0) $s[1][0] = 1; else $s[1][0] = 0;\nif($s[2][1] == 0) $s[2][1] = 1; else $s[2][1] = 0;\n}\nif($mass[2][1]%2 != 0) \n{\nif($s[2][1] == 0) $s[2][1] = 1; else $s[2][1] = 0;\nif($s[1][1] == 0) $s[1][1] = 1; else $s[1][1] = 0;\nif($s[2][0] == 0) $s[2][0] = 1; else $s[2][0] = 0;\nif($s[2][2] == 0) $s[2][2] = 1; else $s[2][2] = 0;\n}\nif($mass[2][2]%2 != 0) \n{\nif($s[2][2] == 0) $s[2][2] = 1; else $s[2][2] = 0;\nif($s[1][2] == 0) $s[1][2] = 1; else $s[1][2] = 0;\nif($s[2][1] == 0) $s[2][1] = 1; else $s[2][1] = 0;\n}\n\nfor($i=0;$i<=2;$i++)\n{\n    for($j=0;$j<=2;$j++)\n    {\n      echo $s[$i][$j];\n    }\n    printf(\"\\n\");\n}", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "fe4ccdfb0607e4f16b99d55e17623118", "src_uid": "b045abf40c75bb66a80fd6148ecc5bd6", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\nlist($e, $f) = explode(\" \", trim(fgets(STDIN)));\n$g = 0;\nfor($w = 1; $w <= 6; $w++)\n{\n     for($x = $w + 1; $x <= 7; $x++)\n     {\n          for($y = $x + 1; $y <= 8; $y++)\n          {\n               for($z = $y + 1; $z <= 9; $z++)\n               {\n                    if(($w + $x == $a) && ($y + $z == $b) && ($w + $y == $c) && ($x + $z == $d) && ($w + $z == $e) && ($x + $y == $f))\n                    {\n                         $g = 1;\n                         print $w . \" \" . $x . \"\\n\";\n                         print $y . \" \" . $z;\n                         break;\n                    }\n                    if(($w + $x == $a) && ($z + $y == $b) && ($w + $z == $c) && ($x + $y == $d) && ($w + $y == $e) && ($x + $z == $f))\n                    {\n                         $g = 1;\n                         print $w . \" \" . $x . \"\\n\";\n                         print $z . \" \" . $y;\n                         break;\n                    }\n                    if(($w + $z == $a) && ($x + $y == $b) && ($w + $x == $c) && ($z + $y == $d) && ($w + $y == $e) && ($x + $z == $f))\n                    {\n                         $g = 1;\n                         print $w . \" \" . $z . \"\\n\";\n                         print $x . \" \" . $y;\n                         break;\n                    }\n                    if(($w + $y == $a) && ($z + $x == $b) && ($w + $z == $c) && ($x + $y == $d) && ($w + $x == $e) && ($y + $z == $f))\n                    {\n                         $g = 1;\n                         print $w . \" \" . $y . \"\\n\";\n                         print $z . \" \" . $x;\n                         break;\n                    }\n                    if(($w + $y == $a) && ($x + $z == $b) && ($w + $x == $c) && ($y + $z == $d) && ($w + $z == $e) && ($x + $y == $f))\n                    {\n                         $g = 1;\n                         print $w . \" \" . $y . \"\\n\";\n                         print $x . \" \" . $z;\n                         break;\n                    }\n                    if(($w + $z == $a) && ($y + $x == $b) && ($w + $y == $c) && ($x + $z == $d) && ($w + $x == $e) && ($y + $z == $f))\n                    {\n                         $g = 1;\n                         print $w . \" \" . $z . \"\\n\";\n                         print $y . \" \" . $x;\n                         break;\n                    }\n                    if(($w + $x == $a) && ($y + $z == $b) && ($x + $z == $c) && ($w + $y == $d) && ($x + $y == $e) && ($z + $w == $f))\n                    {\n                         $g = 1;\n                         print $x . \" \" . $w . \"\\n\";\n                         print $z . \" \" . $y;\n                         break;\n                    }\n                    if(($x + $w == $a) && ($y + $z == $b) && ($x + $y == $c) && ($w + $z == $d) && ($x + $z == $e) && ($y + $w == $f))\n                    {\n                         $g = 1;\n                         print $x . \" \" . $w . \"\\n\";\n                         print $y . \" \" . $z;\n                         break;\n                    }\n                    if(($w + $z == $a) && ($y + $x == $b) && ($x + $z == $c) && ($w + $y == $d) && ($z + $y == $e) && ($x + $w == $f))\n                    {\n                         $g = 1;\n                         print $z . \" \" . $w . \"\\n\";\n                         print $x . \" \" . $y;\n                         break;\n                    }\n                    if(($w + $z == $a) && ($y + $x == $b) && ($y + $z == $c) && ($w + $x == $d) && ($x + $z == $e) && ($y + $w == $f))\n                    {\n                         $g = 1;\n                         print $z . \" \" . $w . \"\\n\";\n                         print $y . \" \" . $x;\n                         break;\n                    }\n                    if(($w + $y == $a) && ($z + $x == $b) && ($y + $x == $c) && ($w + $z == $d) && ($y + $z == $e) && ($x + $w == $f))\n                    {\n                         $g = 1;\n                         print $y . \" \" . $w . \"\\n\";\n                         print $x . \" \" . $z;\n                         break;\n                    }\n                    if(($w + $y == $a) && ($z + $x == $b) && ($y + $z == $c) && ($w + $x == $d) && ($x + $y == $e) && ($z + $w == $f))\n                    {\n                         $g = 1;\n                         print $y . \" \" . $w . \"\\n\";\n                         print $z . \" \" . $x;\n                         break;\n                    }\n                    if(($z + $y == $a) && ($w + $x == $b) && ($z + $x == $c) && ($y + $w == $d) && ($w + $z == $e) && ($y + $x == $f))\n                    {\n                         $g = 1;\n                         print $z . \" \" . $y . \"\\n\";\n                         print $x . \" \" . $w;\n                         break;\n                    }\n                    if(($z + $y == $a) && ($w + $x == $b) && ($y + $x == $c) && ($z + $w == $d) && ($w + $y == $e) && ($z + $x == $f))\n                    {\n                         $g = 1;\n                         print $y . \" \" . $z . \"\\n\";\n                         print $x . \" \" . $w;\n                         break;\n                    }\n                    if(($x + $y == $a) && ($w + $z == $b) && ($z + $x == $c) && ($y + $w == $d) && ($w + $x == $e) && ($z + $y == $f))\n                    {\n                         $g = 1;\n                         print $x . \" \" . $y . \"\\n\";\n                         print $z . \" \" . $w;\n                         break;\n                    }\n                    if(($x + $y == $a) && ($w + $z == $b) && ($z + $x == $c) && ($y + $w == $d) && ($w + $x == $e) && ($z + $y == $f))\n                    {\n                         $g = 1;\n                         print $x . \" \" . $y . \"\\n\";\n                         print $z . \" \" . $w;\n                         break;\n                    }\n                    if(($x + $z == $a) && ($w + $y == $b) && ($z + $y == $c) && ($x + $w == $d) && ($w + $z == $e) && ($y + $x == $f))\n                    {\n                         $g = 1;\n                         print $z . \" \" . $x . \"\\n\";\n                         print $y . \" \" . $w;\n                         break;\n                    }\n                    if(($x + $z == $a) && ($w + $y == $b) && ($x + $y == $c) && ($z + $w == $d) && ($w + $x == $e) && ($z + $y == $f))\n                    {\n                         $g = 1;\n                         print $x . \" \" . $z . \"\\n\";\n                         print $y . \" \" . $w;\n                         break;\n                    }\n                    if(($y + $z == $a) && ($w + $x == $b) && ($w + $y == $c) && ($z + $x == $d) && ($y + $x == $e) && ($z + $w == $f))\n                    {\n                         $g = 1;\n                         print $y . \" \" . $z . \"\\n\";\n                         print $w . \" \" . $x;\n                         break;\n                    }\n                    if(($y + $x == $a) && ($w + $z == $b) && ($w + $x == $c) && ($z + $y == $d) && ($x + $z == $e) && ($w + $y == $f))\n                    {\n                         $g = 1;\n                         print $x . \" \" . $y . \"\\n\";\n                         print $w . \" \" . $z;\n                         break;\n                    }\n                    if(($y + $z == $a) && ($w + $x == $b) && ($w + $z == $c) && ($y + $x == $d) && ($x + $z == $e) && ($y + $w == $f))\n                    {\n                         $g = 1;\n                         print $z . \" \" . $y . \"\\n\";\n                         print $w . \" \" . $x;\n                         break;\n                    }\n                    if(($x + $z == $a) && ($w + $y == $b) && ($z + $w == $c) && ($y + $x == $d) && ($y + $z == $e) && ($x + $w == $f))\n                    {\n                         $g = 1;\n                         print $z . \" \" . $x . \"\\n\";\n                         print $w . \" \" . $y;\n                         break;\n                    }\n                    if(($x + $z == $a) && ($w + $y == $b) && ($w + $x == $c) && ($z + $y == $d) && ($y + $x == $e) && ($z + $w == $f))\n                    {\n                         $g = 1;\n                         print $x . \" \" . $z . \"\\n\";\n                         print $w . \" \" . $y;\n                         break;\n                    }\n                    if(($y + $x == $a) && ($w + $z == $b) && ($w + $y == $c) && ($z + $x == $d) && ($y + $z == $e) && ($x + $w == $f))\n                    {\n                         $g = 1;\n                         print $y . \" \" . $x . \"\\n\";\n                         print $w . \" \" . $z;\n                         break;\n                    }\n               }\n          }\n     }\n}\nif($g == 0)\n{\n     print \"-1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "35bbeafeba807ee4de5be85b64ede6fe", "src_uid": "6821f502f5b6ec95c505e5dd8f3cd5d3", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction checkNumber($x) {\n    if ($x>0 && $x<10) {\n        return true;\n    } else {\n        return false;\n    }\n}\n\nfunction checkResult($a, $b, $n, $k, $r, $c, $d) {\n    if (($a+$b)==$r[0] \n        && ($n+$k)==$r[1]\n        && ($a+$n)==$c[0]\n        && ($b+$k)==$c[1]\n        && ($a+$k)==$d[0]\n        && ($b+$n)==$d[1]\n        && $a!=$b\n        && $a!=$n\n        && $a!=$k\n        && $b!=$n\n        && $b!=$k\n        && $n!=$k) {\n    \n        return true;\n    } else {\n        return false;\n    }\n}\n$file = file('php://stdin');\n$r = explode(' ', $file[0]);    \n$c = explode(' ', $file[1]);    \n$d = explode(' ', $file[2]);\nif ($r[0]==1 || $r[1]==1 || $d[0]==1 || $d[1]==1 || $c[0]==1 || $c[1]==1){\n    echo '-1';\n    exit;\n}\nfor ($a=1; $a<=min($r[0]-1, 9); $a++) {\n    $b = $r[0]-$a;\n    for ($n=1; $n<=min($r[1]-1, 9); $n++) {\n        $k = $r[1]-$n;\n        if (checkNumber($a) && checkNumber($b) && checkNumber($n) && checkNumber($k) && checkResult($a, $b, $n, $k, $r, $c, $d)) {\n            echo \"$a $b\\n\";\n            echo \"$n $k\";\n            exit;\n        }\n    }\n}\necho '-1';\n\n\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "d62afe4af22bc8e3eb64465f23d302fd", "src_uid": "6821f502f5b6ec95c505e5dd8f3cd5d3", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$n = trim(fgets(STDIN));\n\n//A 1\n//B 3\n//C 2\n//D 0\n\n$c = [];\n$c[0] = 'D';\n$c[1] = 'A';\n$c[2] = 'C';\n$c[3] = 'B';\n\n$ans_i = 0;\n$ans_c = $c[0];\n\nfor ($i = 0; $i<=2; $i++)\n{\n\tif ($c[($n + $i) % 4] < $ans_c)\n\t{\n\t\t$ans_i = $i;\n\t\t$ans_c = $c[($n + $i) % 4];\n\t}\n}\n\necho $ans_i.\" \".$ans_c;\n\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "08f18bb6f635f6705bec7f4f7b4e879d", "src_uid": "488e809bd0c55531b0b47f577996627e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$x = trim(fgets(STDIN));\nswitch ($x % 4) {\n    case 0:\n        echo '1 A';\n        break;\n    case 1:\n        echo '0 A';\n        break;\n    case 2:\n        echo '1 B';\n        break;\n    case 3:\n        echo '2 A';\n        break;\n}", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "7c2eb675a9a80b795c7239bc6654cbf3", "src_uid": "488e809bd0c55531b0b47f577996627e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN));\n    $i = $n % 4;\n    if($i == 0) {\n        echo \"1 A\";\n    } else if($i == 1) {\n        echo \"0 A\";\n    } else if($i == 2) {\n        echo \"1 B\";\n    } else {\n        echo \"2 A\";\n    }\n\n ?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "ba78486fc72b86f01e089efc739b019b", "src_uid": "488e809bd0c55531b0b47f577996627e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = $a + 1;\n$c = $b + 1;\nif($a % 4 == 1)\n{\n     print \"0 A\";\n}\nelseif($b % 4 == 1)\n{\n     print \"1 A\";\n}\nelseif($c % 4 == 1)\n{\n     print \"2 A\";\n}\nelseif($a % 4 == 3)\n{\n     print \"0 B\";\n}\nelseif($b % 4 == 3)\n{\n     print \"1 B\";\n}\nelseif($c % 4 == 3)\n{\n     print \"2 B\";\n}\nelseif($a % 4 == 2)\n{\n     print \"0 C\";\n}\nelseif($b % 4 == 2)\n{\n     print \"1 C\";\n}\nelseif($c % 4 == 2)\n{\n     print \"2 C\";\n}\nelseif($a % 4 == 0)\n{\n     print \"0 D\";\n}\nelseif($b % 4 == 0)\n{\n     print \"1 D\";\n}\nelseif($c % 4 == 0)\n{\n     print \"2 D\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "ae7cf144f4b3c5aa08e7f565691651a1", "src_uid": "488e809bd0c55531b0b47f577996627e", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nerror_reporting(0);\n\nwhile($line = trim(fgets(STDIN))){\n\n$linhas[]=$line;\nif($a==1) break;\n$a++;\n}\n\n$explode = explode(\" \",$linhas[0]);\n\n$k=$explode[0];\n$a=$explode[1];\n$b=$explode[2];\n\n$max = max($a,$b);\n$min = min($a,$b);\n\n$set1 = $max/$k;\n$set2 = $min/$k;\n\n\n$sum = intval($set1)+intval($set2);\n\n$sum+=0;\n\n$resto1=$max%$k;\n$resto2=$min%$k;\n\n\n\n\nif($resto1!=0 && $max>=$k) {\n\n\tif($min >= $k) {\n\n\t\techo $sum;\n\t\tdie();\n\n\n\t}\n\n}\n\nelse if(($resto1==0) && ($max>=$k)) { \n\techo $sum; die(); }\n\n\t// var_dump($resto1==0,$max>=$k);\n\n\necho \"-1\";\n\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "ba7bb0a01d1384b9dee6ec9fa6187da1", "src_uid": "6e3b8193d1ca1a1d449dc7a4ad45b8f2", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = floor($b / $a);\n$e = floor($c / $a);\n$f = $b % $a;\n$g = $c % $a;\n$h = $d * ($a - 1);\n$i = $e * ($b - 1);\nif(($d == 0) && ($e == 0))\n{\n     print \"-1\";\n}\nelseif((($e == 0) && ($f > 0)) || (($d == 0) && ($g > 0)))\n{\n     print \"-1\";\n}\nelseif(($h >= $g) || ($i >= $f))\n{\n     print $d + $e;\n}\nelse\n{\n     print \"-1\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "e9985e4be1bc9e37ae9f82c12bba5a0e", "src_uid": "6e3b8193d1ca1a1d449dc7a4ad45b8f2", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$a++;\nwhile(TRUE)\n{\n    $c = \"\";\n    $d = $a . \"\";\n    for($x = 0; $x < strlen($a); $x++)\n    {\n        if(($d[$x] == \"4\") || ($d[$x] == \"7\"))\n        {\n            $c .= $d[$x];\n        }\n    }\n    if($c == $b)\n    {\n        break;\n    }\n    else\n    {\n        $a++;\n    }\n}\nprint $a;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "ee13e422352ad0849df27a17b09ccde1", "src_uid": "e5e4ea7a5bf785e059e10407b25d73fb", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?PHP\n\n\nfunction stdin($raw = false)\n{\n\treturn $raw ? fgets(\\STDIN) : rtrim(fgets(\\STDIN), PHP_EOL);\n}\nfunction stdout($string)\n{\n\treturn fwrite(\\STDOUT, $string);\n}\n\n$passengersCount = stdin();\n\nfor($i = 1; $i < 35; $i ++) {\n\t$$i = '#';\n}\n\nfor($i = 1; $i < ($passengersCount+1); $i ++) {\n\t$$i = 'O';\n}\n\nstdout(\"+------------------------+\n|\" . ${\"1\"} . \".\" . ${\"5\"} . \".\" . ${\"8\"} . \".\" . ${\"11\"} . \".\" . ${\"14\"} . \".\" . ${\"17\"} . \".\" . ${\"20\"} . \".\" . ${\"23\"} . \".\" . ${\"26\"} . \".\" . ${\"29\"} . \".\" . ${\"32\"} . \".|D|)\n|\" . ${\"2\"} . \".\" . ${\"6\"} . \".\" . ${\"9\"} . \".\" . ${\"12\"} . \".\" . ${\"15\"} . \".\" . ${\"18\"} . \".\" . ${\"21\"} . \".\" . ${\"24\"} . \".\" . ${\"27\"} . \".\" . ${\"30\"} . \".\" . ${\"33\"} . \".|.|\n|\" . ${\"3\"} . \".......................|\n|\" . ${\"4\"} . \".\" . ${\"7\"} . \".\" . ${\"10\"} . \".\" . ${\"13\"} . \".\" . ${\"16\"} . \".\" . ${\"19\"} . \".\" . ${\"22\"} . \".\" . ${\"25\"} . \".\" . ${\"28\"} . \".\" . ${\"31\"} . \".\" . ${\"34\"} . \".|.|)\n+------------------------+\");", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "496151b96a64bfe56c3cead7f115b1e7", "src_uid": "075f83248f6d4d012e0ca1547fc67993", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nerror_reporting(0);\n$taken = file_get_contents(\"php://stdin\");\n\n\n$template = '+------------------------+\n|S1.S5.S8.S11.S14.S17.S20.S23.S26.S29.S32.|D|)\n|S2.S6.S9.S12.S15.S18.S21.S24.S27.S30.S33.|.|\n|S3.......................|\n|S4.S7.S10.S13.S16.S19.S22.S25.S28.S31.S34.|.|)\n+------------------------+';\n\n\nfor($i=0;$i<=34;$i++) {\n    if($i<=$taken) {\n    $template = preg_replace('/S'.$i.'\\./is', 'O.', $template);\n    }else{\n      $template =  preg_replace('/S'.$i.'\\./is', '#.', $template);\n    }\n    \n}\n\necho $template;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "38c5b7a74dc5b480d3ef834ee75bd350", "src_uid": "075f83248f6d4d012e0ca1547fc67993", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = \"+------------------------+\";\n$c = \"|#.#.#.#.#.#.#.#.#.#.#.|D|)\";\n$d = \"|#.#.#.#.#.#.#.#.#.#.#.|.|\";\n$e = \"|#.......................|\";\n$f = \"|#.#.#.#.#.#.#.#.#.#.#.|.|)\";\nif($a <= 4)\n{\n    $g = 3;\n    for($x = 1; $x <= $a; $x++)\n    {\n        if((($g + $x) % 4) == 0)\n        {\n            $c[1] = \"O\";\n        }\n        elseif((($g + $x) % 4) == 1)\n        {\n            $d[1] = \"O\";\n        }\n        elseif((($g + $x) % 4) == 2)\n        {\n            $e[1] = \"O\";\n        }\n        elseif((($g + $x) % 4) == 3)\n        {\n            $f[1] = \"O\";\n        }\n    }\n    print $b . \"\\n\";\n    print $c . \"\\n\";\n    print $d . \"\\n\";\n    print $e . \"\\n\";\n    print $f . \"\\n\";\n    print $b;\n}\nelse\n{\n    $a -= 4;\n    $b = \"+------------------------+\";\n    $c = \"|O.#.#.#.#.#.#.#.#.#.#.|D|)\";\n    $d = \"|O.#.#.#.#.#.#.#.#.#.#.|.|\";\n    $e = \"|O.......................|\";\n    $f = \"|O.#.#.#.#.#.#.#.#.#.#.|.|)\";\n    $g = 4;\n    $h = 3;\n    $i = 3;\n    $j = 3;\n    $k = 1;\n    for($x = 1; $x <= $a; $x++)\n    {\n        if((($g + $k) % 4) == 1)\n        {\n            $c[$h] = \"O\";\n            $h += 2;\n            $k++;\n        }\n        elseif((($g + $k) % 4) == 2)\n        {\n            $d[$i] = \"O\";\n            $i += 2;\n            $k++;\n        }\n        elseif((($g + $k) % 4) == 3)\n        {\n            $f[$j] = \"O\";\n            $j += 2;\n            $k += 2;\n        }\n    }\n    print $b . \"\\n\";\n    print $c . \"\\n\";\n    print $d . \"\\n\";\n    print $e . \"\\n\";\n    print $f . \"\\n\";\n    print $b;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "f7d9407a5e1a706128b6fb1f4c4f1cf2", "src_uid": "075f83248f6d4d012e0ca1547fc67993", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e) = explode(\" \", trim(fgets(STDIN)));\nif(($b == $c) && ($c == $d) && ($d == $e))\n{\n     print \"0\";\n}\nelseif((($c == 0) && ($e == $a)) || (($e == 0) && ($c == $a)))\n{\n     $f = abs(0 - $b);\n     $g = abs(0 - $d);\n     $h = $f + $g + $a;\n     $i = abs($a - $b);\n     $j = abs($a - $d);\n     $k = $i + $j + $a;\n     print min($h, $k);\n}\nelseif((($b == 0) && ($d == $a)) || (($d == 0) && ($b == $a)))\n{\n     $f = abs(0 - $c);\n     $g = abs(0 - $e);\n     $h = $f + $g + $a;\n     $i = abs($a - $c);\n     $j = abs($a - $e);\n     $k = $i + $j + $a;\n     print min($h, $k);\n}\nelseif(($c == $a) && ($d == $a))\n{\n     $f = abs($a - $b);\n     $g = abs($a - $e);\n     print $f + $g;\n}\nelseif(($b == $a) && ($e == $a))\n{\n     $f = abs($a - $c);\n     $g = abs($a - $d);\n     print $f + $g;\n}\nelseif(($c == 0) && ($d == 0))\n{\n     $f = $b;\n     $g = $e;\n     print $f + $g;\n}\nelseif(($b == 0) && ($e == 0))\n{\n     $f = $c;\n     $g = $d;\n     print $f + $g;\n}\nelseif(($c == $a) && ($d == 0))\n{\n     $f = abs($a - $e);\n     $g = $b;\n     print $f + $g;\n}\nelseif(($b == 0) && ($e == $a))\n{\n     $f = abs($a - $c);\n     $g = $d;\n     print $f + $g;\n}\nelseif(($b == $a) && ($e == 0))\n{\n     $f = abs($a - $d);\n     $g = $c;\n     print $f + $g;\n}\nelseif(($c == 0) && ($d == $a))\n{\n     $f = abs($a - $b);\n     $g = $e;\n     print $f + $g;\n}\nelseif((($c == 0) && ($e == 0)) || (($e == 0) && ($c == 0)))\n{\n     print abs($b - $d);\n}\nelseif((($b == 0) && ($d == 0)) || (($d == 0) && ($b == 0)))\n{\n     print abs($c - $e);\n}\nelseif((($c == $a) && ($e == $a)) || (($e == $A) && ($c == $a)))\n{\n     print abs($b - $d);\n}\nelseif((($b == $a) && ($d == $a)) || (($d == $a) && ($b == $a)))\n{\n     print abs($c - $e);\n}\n?>", "lang_cluster": "PHP", "tags": ["dfs and similar", "greedy", "implementation"], "code_uid": "fc45c1a7141712725c7dc96ca1feb1f5", "src_uid": "685fe16c217b5b71eafdb4198822250e", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a[0] == \"9\")\n{\n     $b = strlen($a);\n     $c = array_fill(0, $b, 0);\n     $d = 1 . implode($c);\n     print $d - $a;\n}\nelse\n{\n     $b = strlen($a) - 1;\n     $c = array_fill(0, $b, 0);\n     $d = ($a[0] + 1) . implode($c);\n     print $d - $a;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c58bbc0324b572cc315367e880bfaac8", "src_uid": "a3e15c0632e240a0ef6fe43a5ab3cc3e", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n# 1155A\n$start = microtime(1);\n$types = [0, 1, 2, 0, 2, 1, 0];\n$input = fopen('php://stdin', 'rb');\n[$fish, $rabbit, $chicken] = explode(' ', fgets($input));\n$fish = (int) $fish;\n$rabbit = (int) $rabbit;\n$chicken = (int) $chicken;\n$daysResult = [];\n$weeks = min([\n    (int)floor($fish / 3),\n    (int)floor($rabbit / 2),\n    (int)floor($chicken / 2),\n]);\n\n$fish -= $weeks * 3;\n$rabbit -= $weeks * 2;\n$chicken -= $weeks * 2;\n\nfor ($i = 0; $i < 7; $i++) {\n    $backpack = [$fish, $rabbit, $chicken];\n    $days = 0;\n    for ($j = $i; true; $j++) {\n        $type = $types[$j % 7];\n        if ($backpack[$type] === 0) {\n            break;\n        }\n        $backpack[$type]--;\n        $days++;\n    }\n    $daysResult[$i] = $days;\n}\necho $weeks * 7 + max($daysResult);\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "7bf0ef3631851c5c6b7b4cf3eb4ed447", "src_uid": "e17df52cc0615585e4f8f2d31d2daafb", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$c = 0;\nif(($a < 10) && ($a != 0))\n{\n    print \"1\";\n}\nelseif($a == 0)\n{\n    print \"0\";\n}\nelse\n{\n    for($x = 1; $x <= 1000000; $x++)\n    {\n        $b = str_split($a);\n        rsort($b);\n        $a -= $b[0];\n        if($a < 10)\n        {\n            $c += 2;\n            break;\n        }\n        else\n        {\n            $c++;\n        }\n    }\n    print $c;\n}\n?>", "lang_cluster": "PHP", "tags": ["dp"], "code_uid": "df9a16a8e8fdc9819e0b06b240e73dc1", "src_uid": "fc5765b9bd18dc7555fa76e91530c036", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n\n$f = fopen('php://stdin', 'r');\n//$f = fopen('5.txt', 'r');\n$neck = fgets($f);\n\n$tam = strlen($neck);\n\n$perl = 0; $link = 0;\nfor($i  = 0; $i < $tam; $i++){\n    if($neck[$i] === 'o'){\n        $perl++;\n    }else if($neck[$i] ==='-'){\n        $link++;\n    }\n}\n\nif($link === 0 || $perl === 0){\n    die('YES');\n}else {\n    $result = $link % $perl;\n    if (!$result) die(\"YES\");\n    die(\"NO\");\n}\n\n\n\n\n\n\n\n", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "3e49f3db26a8a93639a1a86aec12845f", "src_uid": "6e006ae3df3bcd24755358a5f584ec03", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 0;\n$c = 0;\nfor($x = 0; $x < strlen($a); $x++)\n{\n     if($a[$x] == \"o\")\n     {\n          $b++;\n     }\n     else\n     {\n          $c++;\n     }\n}\nif($b == 0)\n{\n     print \"YES\";\n}\nelse\n{\n     $d = $c % $b;\n     if($d == 0)\n     {\n          print \"YES\";\n     }\n     else\n     {\n          print \"NO\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "880faf5891e88744fc06764955f5ea72", "src_uid": "6e006ae3df3bcd24755358a5f584ec03", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction canRejoin($str)\n{\n    $links  = 0;\n    $pearls = 0;\n    foreach (str_split($str, 1) as $ch){\n        if($ch === '-'){\n            $links++;\n        }\n        elseif($ch === 'o'){\n            $pearls++;\n        }\n    }\n    if(intval($pearls) === 0) return true;\n    return intval($links) % intval($pearls) == 0;\n}\n\nfunction main()\n{\n    $str = fread(STDIN, 4096);\n    echo canRejoin($str)? 'YES':'NO';\n}\n\nmain();", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "70cf9571417f693063d04f035973321b", "src_uid": "6e006ae3df3bcd24755358a5f584ec03", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = explode(\" \", trim(fgets(STDIN)));\n$e = array($b - $c[count($c) - 1] + $c[0]);\n$f = array($b - $d[count($d) - 1] + $d[0]);\nfor($x = 0; $x < $a - 1; $x++)\n{\n     $e[count($e)] = $c[$x + 1] - $c[$x];\n     $f[count($f)] = $d[$x + 1] - $d[$x];\n}\nfor($x = 0; $x < $a; $x++)\n{\n     for($y = 0; $y < $a; $y++)\n     {\n          if($e[$x] == $f[$y])\n          {\n               $g = 0;\n               $h = array_slice($e, 0, $x + 1);\n               $i = array_slice($e, $x + 1);\n               $j = array_merge($i, $h);\n               $k = array_slice($f, 0, $y + 1);\n               $l = array_slice($f, $y + 1);\n               $m = array_merge($l, $k);\n               for($z = 0; $z < $a; $z++)\n               {\n                    if($j[$z] != $m[$z])\n                    {\n                         $g = 1;\n                         break;\n                    }\n               }\n               if($g == 0)\n               {\n                    $n = 1;\n                    break;\n               }\n          }\n     }\n     if($n == 1)\n     {\n          break;\n     }\n}\nif($n == 0)\n{\n     print \"NO\";\n}\nelse\n{\n     print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "a979d481d83939dbc0f3d60b8efc7589", "src_uid": "3d931684ca11fe6141c6461e85d91d63", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$c2 = $c;\n$d = explode(\" \", trim(fgets(STDIN)));\nsort($d);\n$e = array();\n$f = 0;\n$i = 0;\nfor($x = 0; $x < $b; $x++)\n{\n     $g = $d[$x] * $a;\n     $c2 -= $g;\n     if($c2 < 0)\n     {\n          $c2 += $g;\n          $h = floor($c2 / $d[$x]);\n          $f += $h;\n          $i = 1;\n          break;\n     }\n     elseif($c2 == 0)\n     {\n          $f += $a;\n          break;\n     }\n     elseif($c2 > 0)\n     {\n          $f += $a;\n     }\n}\nif(($x == $b - 1) && ($i == 0))\n{\n     $f += $a;\n}\nelseif(($x == $b - 1) && ($i == 1))\n{\n     $f += $h;\n}\n$e[count($e)] = $f;\n$j = array_sum($d);\nfor($x = 0; $x < $a; $x++)\n{\n     $c2 = $c;\n     $k = 0;\n     for($y = 0; $y <= $x; $y++)\n     {\n          $c2 -= $j;\n          if($c2 < 0)\n          {\n               $c2 += $j;\n               break;\n          }\n          elseif($c2 == 0)\n          {\n               $k += $b + 1;\n               break;\n          }\n          elseif($c2 > 0)\n          {\n               $k += $b + 1;\n          }\n     }\n     if($c2 > 0)\n     {\n          $i = 0;\n          for($z = 0; $z < $b; $z++)\n          {\n               $g = $d[$z] * ($a - $y);\n               $c2 -= $g;\n               if($c2 < 0)\n               {\n                    $c2 += $g;\n                    $h = floor($c2 / $d[$z]);\n                    $k += $h;\n                    $i = 1;\n                    break;\n               }\n               elseif($c2 == 0)\n               {\n                    $k += ($a - $y);\n                    break;\n               }\n               elseif($c2 > 0)\n               {\n                    $k += ($a - $y);\n               }\n          }\n          if(($z == $b - 1) && ($i == 0))\n          {\n               $k += ($a - $y);\n          }\n          elseif(($z == $b - 1) && ($i == 1))\n          {\n               $k += $h;\n          }\n     }\n     $e[count($e)] = $k;\n}\nprint max($e);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "41d7c38e4f0124792b122a2fcfa30176", "src_uid": "d659e92a410c1bc836be64fc1c0db160", "difficulty": 1800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = array_fill(0, 3, $b);\n$d = 0;\nwhile(TRUE)\n{\n     sort($c);\n     if($c[2] >= $a)\n     {\n          $d += 2;\n          break;\n     }\n     else\n     {\n          $d++;\n          $c[0] = $c[1] + $c[2] - 1;\n     }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "042ffa0aceb2fb8c0e97e2601079631b", "src_uid": "8edf64f5838b19f9a8b19a14977f5615", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%s\", $str);\necho preg_match_all(\"/(C{1,5})|(P{1,5})/\", $str, $matchesarray);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0f939fe95aacdc8b8bfab4ddb53d958c", "src_uid": "5257f6b50f5a610a17c35a47b3a0da11", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = str_split(trim(fgets(STDIN)));\n$b = 0;\n$c = 0;\n$d = 0;\nfor($x = 0; $x < count($a); $x++)\n{\n    if($a[$x] == \"C\")\n    {\n        $b++;\n        $c = 0;\n    }\n    else\n    {\n        $c++;\n        $b = 0;\n    }\n    if($a[$x] != $a[$x + 1])\n    {\n        $d++;\n        $b = 0;\n        $c = 0;\n    }\n    if(($b == \"5\") && ($x != count($a) - 1))\n    {\n        $d++;\n        $b = 0;\n    }\n    if(($c == \"5\") && ($x != count($a) - 1))\n    {\n        $d++;\n        $c = 0;\n    }\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e88dfe4372476b18d3478c18fbe1d1c1", "src_uid": "5257f6b50f5a610a17c35a47b3a0da11", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "   <?php\nfscanf(STDIN, \"%s\", $str);\necho preg_match_all(\"/(C{1,5})|(P{1,5})/\", $str, $matchesarray);", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "4368bbe12b98bfe4ce427d3a7ce35f79", "src_uid": "5257f6b50f5a610a17c35a47b3a0da11", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array();\n$c = 1;\nwhile(TRUE)\n{\n     $d = (pow(2, $c) - 1) * pow(2, $c - 1);\n     $e = $a % $d;\n     if($e == 0)\n     {\n          $b[count($b)] = $d;\n     }\n     if($d >= $a)\n     {\n          break;\n     }\n     else\n     {\n          $c++;\n     }\n}\nprint max($b);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "d9cee6558a2274594797f58402839c42", "src_uid": "339246a1be81aefe19290de0d1aead84", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php \n$handle = fopen (\"php://stdin\",\"r\"); \n$line = fgets($handle);\nlist($start, $end) = explode(\" \", $line);\n$start = trim($start);\n$end = trim($end);\n\n$n = (int)fgets($handle);\n\n$clockwise_stats = [\"^\",\">\",\"v\", \"<\"];\n$counter_clockwise_stats = array_reverse($clockwise_stats);\n\n\n$is_cw  = false;\n$is_ccw = false;\n\n$mod = $n%4;\n$start_pos = array_search($start, $clockwise_stats);\nif($start_pos!==false){\n    \t$end_pos = ($start_pos+$mod)%4;\n\tif($end == $clockwise_stats[$end_pos]){\n\t   $is_cw = true;\n\t}\n}\n\n$start_pos_ccw = array_search($start, $counter_clockwise_stats);\nif($start_pos_ccw!==false){\n\n\t$end_pos_ccw = ($start_pos_ccw + $mod)%4;\n\tif($end == $counter_clockwise_stats[$end_pos_ccw]){\n\t   $is_ccw = true;\n\t}\n}\n\nif($is_cw && $is_ccw)\n{\n  echo \"undefined\";\n}elseif($is_cw){\n  echo \"cw\";\n}elseif($is_ccw){\n  echo \"ccw\";\n}else{\n  echo \"undefined\";\n}\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0cc0bea7ac32fa63114f450420599ad9", "src_uid": "fb99ef80fd21f98674fe85d80a2e5298", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = trim(fgets(STDIN));\nif($c % 2 == 0)\n{\n     print \"undefined\";\n}\nelseif($a == \"^\")\n{\n     $d = array(\"^\", \">\", \"v\", \"<\");\n     $e = $c % 4;\n     if($b == $d[$e])\n     {\n          print \"cw\";\n     }\n     else\n     {\n          $f = array(\"^\", \"<\", \"v\", \">\");\n          $g = $c % 4;\n          if($b == $f[$g])\n          {\n               print \"ccw\";\n          }\n     }\n}\nelseif($a == \">\")\n{\n     $d = array(\">\", \"v\", \"<\", \"^\");\n     $e = $c % 4;\n     if($b == $d[$e])\n     {\n          print \"cw\";\n     }\n     else\n     {\n          $f = array(\">\", \"^\", \"<\", \"v\");\n          $g = $c % 4;\n          if($b == $f[$g])\n          {\n               print \"ccw\";\n          }\n     }\n}\nelseif($a == \"v\")\n{\n     $d = array(\"v\", \"<\", \"^\", \">\");\n     $e = $c % 4;\n     if($b == $d[$e])\n     {\n          print \"cw\";\n     }\n     else\n     {\n          $f = array(\"v\", \">\", \"^\", \"<\");\n          $g = $c % 4;\n          if($b == $f[$g])\n          {\n               print \"ccw\";\n          }\n     }\n}\nelseif($a == \"<\")\n{\n     $d = array(\"<\", \"^\", \">\", \"v\");\n     $e = $c % 4;\n     if($b == $d[$e])\n     {\n          print \"cw\";\n     }\n     else\n     {\n          $f = array(\"<\", \"v\", \">\", \"^\");\n          $g = $c % 4;\n          if($b == $f[$g])\n          {\n               print \"ccw\";\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "cfe06711b9f67dd6bd6aef4917bb87c8", "src_uid": "fb99ef80fd21f98674fe85d80a2e5298", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a=explode (\" \",str_replace(\"\n\",\"\",fgets(STDIN)));\n//var_dump($a);\nif ($a [0]> $a [1])\n$x=$a [1];\nelse\n$x=$a [0];\n$s=1;\n\nfor ($i=2; $i <=$x; $i++)\n$s=$s*$i;\n\necho $s;\n\n\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation", "number theory"], "code_uid": "d2e9c1e8d2fc75dccb255365672b2d5b", "src_uid": "7bf30ceb24b66d91382e97767f9feeb6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = min($a, $b);\n$d = 1;\nfor($x = 1; $x <= $c; $x++)\n{\n     $d *= $x;\n}\nprint $d;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation", "number theory"], "code_uid": "caade5e02c5c217299f4ba91a7e2f0c6", "src_uid": "7bf30ceb24b66d91382e97767f9feeb6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$s=trim(fgets(STDIN));\n$a=explode(' ',$s);\n$m=1;\n$n=min($a[0],$a[1]);\nfor ($i=1;$i<=$n;$i++){\n    $m*=$i;\n}\necho $m;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation", "number theory"], "code_uid": "f8a98a2ec709835a75aba76aa791e6f5", "src_uid": "7bf30ceb24b66d91382e97767f9feeb6", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\nsort($a);\nif($a[0] + $a[1] > $a[2])\n{\n     print \"0\";\n}\nelse\n{\n     $b = $a[2] - ($a[0] + $a[1]) + 1;\n     print $b;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "geometry"], "code_uid": "b24eecf6a1bfcb1cdb92730d62386fc5", "src_uid": "3dc56bc08606a39dd9ca40a43c452f09", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$batch = readline();\nfor($a = 0;$a < $batch; $a++){\n\n    $serial_info = readline();\n    \n    $serial_info_array = explode(' ', $serial_info);\n    $n = $serial_info_array[0];\n    $k = $serial_info_array[1];\n    $d = $serial_info_array[2];\n    \n    $serial_data = readline();\n    \n    $serial_array = explode(' ', $serial_data);\n    \n    $min = $k;\n    \n    for($day = 0; $day <= $n - $d; $day++){\n        $sub = array_slice($serial_array, $day, $d);\n        $unique_count = count(array_unique($sub));\n        if($unique_count < $min){\n            $min = $unique_count;\n        }\n    }\n    \n    print_r($min);\n    if($a+1 != $batch){\n         print_r(PHP_EOL);   \n    }\n}\n\nreturn 0;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "86bdd5ae8d65db26054f2ba0c1ffc433", "src_uid": "56da4ec7cd849c4330d188d8c9bd6094", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nfor($x = 1; $x <= $a; $x++)\n{\n     list($b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n     $e = explode(\" \", trim(fgets(STDIN)));\n     $f = array();\n     for($y = 0; $y < $d; $y++)\n     {\n          $f[$e[$y]]++;\n     }\n     $g = count($f);\n     for($z = 0; $z < $b - $d; $z++)\n     {\n          $f[$e[$z]]--;\n          if($f[$e[$z]] == 0)\n          {\n               unset($f[$e[$z]]);\n          }\n          $f[$e[$y]]++;\n          $y++;\n          if(count($f) < $g)\n          {\n               $g = count($f);\n          }\n     }\n     print $g . \"\\n\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "23ac496d35a48701ff4a83030fd9c232", "src_uid": "56da4ec7cd849c4330d188d8c9bd6094", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = trim(fgets(STDIN));\n$a2 = explode(\" \", trim(fgets(STDIN)));\n$b2 = explode(\" \", trim(fgets(STDIN)));\n$c2 = explode(\" \", trim(fgets(STDIN)));\n$e = trim(fgets(STDIN));\n$a3 = explode(\" \", trim(fgets(STDIN)));\n$b3 = explode(\" \", trim(fgets(STDIN)));\n$c3 = explode(\" \", trim(fgets(STDIN)));\nlist($f, $g) = explode(\" \", trim(fgets(STDIN)));\n$h = array();\nif(($f == 1) || ($f == 4) || ($f == 7))\n{\n     if(($g == 1) || ($g == 4) || ($g == 7))\n     {\n          $h[0] = $a[0];\n          $h[1] = $b[0];\n          $h[2] = $c[0];\n     }\n     elseif(($g == 2) || ($g == 5) || ($g == 8))\n     {\n          $h[0] = $a[1];\n          $h[1] = $b[1];\n          $h[2] = $c[1];\n     }\n     elseif(($g == 3) || ($g == 6) || ($g == 9))\n     {\n          $h[0] = $a[2];\n          $h[1] = $b[2];\n          $h[2] = $c[2];\n     }\n}\nelseif(($f == 2) || ($f == 5) || ($f == 8))\n{\n     if(($g == 1) || ($g == 4) || ($g == 7))\n     {\n          $h[0] = $a2[0];\n          $h[1] = $b2[0];\n          $h[2] = $c2[0];\n     }\n     elseif(($g == 2) || ($g == 5) || ($g == 8))\n     {\n          $h[0] = $a2[1];\n          $h[1] = $b2[1];\n          $h[2] = $c2[1];\n     }\n     elseif(($g == 3) || ($g == 6) || ($g == 9))\n     {\n          $h[0] = $a2[2];\n          $h[1] = $b2[2];\n          $h[2] = $c2[2];\n     }\n}\nelseif(($f == 3) || ($f == 6) || ($f == 9))\n{\n     if(($g == 1) || ($g == 4) || ($g == 7))\n     {\n          $h[0] = $a3[0];\n          $h[1] = $b3[0];\n          $h[2] = $c3[0];\n     }\n     elseif(($g == 2) || ($g == 5) || ($g == 8))\n     {\n          $h[0] = $a3[1];\n          $h[1] = $b3[1];\n          $h[2] = $c3[1];\n     }\n     elseif(($g == 3) || ($g == 6) || ($g == 9))\n     {\n          $h[0] = $a3[2];\n          $h[1] = $b3[2];\n          $h[2] = $c3[2];\n     }\n}\n$i = 0;\nfor($x = 0; $x < 3; $x++)\n{\n     $j = $h[$x];\n     for($y = 0; $y < 3; $y++)\n     {\n          if($j[$y] == \".\")\n          {\n               $i = 1;\n               break;\n          }\n     }\n}\nif($i == 0)\n{\n     for($x = 0; $x < 3; $x++)\n     {\n          for($y = 0; $y < 3; $y++)\n          {\n               if($a[$x][$y] == \".\")\n               {\n                    $a[$x][$y] = \"!\";\n               }\n          }\n     }\n     for($x = 0; $x < 3; $x++)\n     {\n          for($y = 0; $y < 3; $y++)\n          {\n               if($b[$x][$y] == \".\")\n               {\n                    $b[$x][$y] = \"!\";\n               }\n          }\n     }\n     for($x = 0; $x < 3; $x++)\n     {\n          for($y = 0; $y < 3; $y++)\n          {\n               if($c[$x][$y] == \".\")\n               {\n                    $c[$x][$y] = \"!\";\n               }\n          }\n     }\n     for($x = 0; $x < 3; $x++)\n     {\n          for($y = 0; $y < 3; $y++)\n          {\n               if($a2[$x][$y] == \".\")\n               {\n                    $a2[$x][$y] = \"!\";\n               }\n          }\n     }\n     for($x = 0; $x < 3; $x++)\n     {\n          for($y = 0; $y < 3; $y++)\n          {\n               if($b2[$x][$y] == \".\")\n               {\n                    $b2[$x][$y] = \"!\";\n               }\n          }\n     }\n     for($x = 0; $x < 3; $x++)\n     {\n          for($y = 0; $y < 3; $y++)\n          {\n               if($c2[$x][$y] == \".\")\n               {\n                    $c2[$x][$y] = \"!\";\n               }\n          }\n     }\n     for($x = 0; $x < 3; $x++)\n     {\n          for($y = 0; $y < 3; $y++)\n          {\n               if($a3[$x][$y] == \".\")\n               {\n                    $a3[$x][$y] = \"!\";\n               }\n          }\n     }\n     for($x = 0; $x < 3; $x++)\n     {\n          for($y = 0; $y < 3; $y++)\n          {\n               if($b3[$x][$y] == \".\")\n               {\n                    $b3[$x][$y] = \"!\";\n               }\n          }\n     }\n     for($x = 0; $x < 3; $x++)\n     {\n          for($y = 0; $y < 3; $y++)\n          {\n               if($c3[$x][$y] == \".\")\n               {\n                    $c3[$x][$y] = \"!\";\n               }\n          }\n     }\n     print implode(\" \", $a) . \"\\n\";\n     print implode(\" \", $b) . \"\\n\";\n     print implode(\" \", $c) . \"\\n\\n\";\n     print implode(\" \", $a2) . \"\\n\";\n     print implode(\" \", $b2) . \"\\n\";\n     print implode(\" \", $c2) . \"\\n\\n\";\n     print implode(\" \", $a3) . \"\\n\";\n     print implode(\" \", $b3) . \"\\n\";\n     print implode(\" \", $c3) . \"\\n\";\n}\nelse\n{\n     if(($f == 1) || ($f == 4) || ($f == 7))\n     {\n          if(($g == 1) || ($g == 4) || ($g == 7))\n          {\n               for($x = 0; $x < 3; $x++)\n               {\n                    if($a[0][$x] == \".\")\n                    {\n                         $a[0][$x] = \"!\";\n                    }\n                    if($b[0][$x] == \".\")\n                    {\n                         $b[0][$x] = \"!\";\n                    }\n                    if($c[0][$x] == \".\")\n                    {\n                         $c[0][$x] = \"!\";\n                    }\n               }\n          }\n          elseif(($g == 2) || ($g == 5) || ($g == 8))\n          {\n               for($x = 0; $x < 3; $x++)\n               {\n                    if($a[1][$x] == \".\")\n                    {\n                         $a[1][$x] = \"!\";\n                    }\n                    if($b[1][$x] == \".\")\n                    {\n                         $b[1][$x] = \"!\";\n                    }\n                    if($c[1][$x] == \".\")\n                    {\n                         $c[1][$x] = \"!\";\n                    }\n               }\n          }\n          elseif(($g == 3) || ($g == 6) || ($g == 9))\n          {\n               for($x = 0; $x < 3; $x++)\n               {\n                    if($a[2][$x] == \".\")\n                    {\n                         $a[2][$x] = \"!\";\n                    }\n                    if($b[2][$x] == \".\")\n                    {\n                         $b[2][$x] = \"!\";\n                    }\n                    if($c[2][$x] == \".\")\n                    {\n                         $c[2][$x] = \"!\";\n                    }\n               }\n          }\n     }\n     elseif(($f == 2) || ($f == 5) || ($f == 8))\n     {\n          if(($g == 1) || ($g == 4) || ($g == 7))\n          {\n               for($x = 0; $x < 3; $x++)\n               {\n                    if($a2[0][$x] == \".\")\n                    {\n                         $a2[0][$x] = \"!\";\n                    }\n                    if($b2[0][$x] == \".\")\n                    {\n                         $b2[0][$x] = \"!\";\n                    }\n                    if($c2[0][$x] == \".\")\n                    {\n                         $c2[0][$x] = \"!\";\n                    }\n               }\n          }\n          elseif(($g == 2) || ($g == 5) || ($g == 8))\n          {\n               for($x = 0; $x < 3; $x++)\n               {\n                    if($a2[1][$x] == \".\")\n                    {\n                         $a2[1][$x] = \"!\";\n                    }\n                    if($b2[1][$x] == \".\")\n                    {\n                         $b2[1][$x] = \"!\";\n                    }\n                    if($c2[1][$x] == \".\")\n                    {\n                         $c2[1][$x] = \"!\";\n                    }\n               }\n          }\n          elseif(($g == 3) || ($g == 6) || ($g == 9))\n          {\n               for($x = 0; $x < 3; $x++)\n               {\n                    if($a2[2][$x] == \".\")\n                    {\n                         $a2[2][$x] = \"!\";\n                    }\n                    if($b2[2][$x] == \".\")\n                    {\n                         $b2[2][$x] = \"!\";\n                    }\n                    if($c2[2][$x] == \".\")\n                    {\n                         $c2[2][$x] = \"!\";\n                    }\n               }\n          }\n     }\n     elseif(($f == 3) || ($f == 6) || ($f == 9))\n     {\n          if(($g == 1) || ($g == 4) || ($g == 7))\n          {\n               for($x = 0; $x < 3; $x++)\n               {\n                    if($a3[0][$x] == \".\")\n                    {\n                         $a3[0][$x] = \"!\";\n                    }\n                    if($b3[0][$x] == \".\")\n                    {\n                         $b3[0][$x] = \"!\";\n                    }\n                    if($c3[0][$x] == \".\")\n                    {\n                         $c3[0][$x] = \"!\";\n                    }\n               }\n          }\n          elseif(($g == 2) || ($g == 5) || ($g == 8))\n          {\n               for($x = 0; $x < 3; $x++)\n               {\n                    if($a3[1][$x] == \".\")\n                    {\n                         $a3[1][$x] = \"!\";\n                    }\n                    if($b3[1][$x] == \".\")\n                    {\n                         $b3[1][$x] = \"!\";\n                    }\n                    if($c3[1][$x] == \".\")\n                    {\n                         $c3[1][$x] = \"!\";\n                    }\n               }\n          }\n          elseif(($g == 3) || ($g == 6) || ($g == 9))\n          {\n               for($x = 0; $x < 3; $x++)\n               {\n                    if($a3[2][$x] == \".\")\n                    {\n                         $a3[2][$x] = \"!\";\n                    }\n                    if($b3[2][$x] == \".\")\n                    {\n                         $b3[2][$x] = \"!\";\n                    }\n                    if($c3[2][$x] == \".\")\n                    {\n                         $c3[2][$x] = \"!\";\n                    }\n               }\n          }\n     }\n     print implode(\" \", $a) . \"\\n\";\n     print implode(\" \", $b) . \"\\n\";\n     print implode(\" \", $c) . \"\\n\\n\";\n     print implode(\" \", $a2) . \"\\n\";\n     print implode(\" \", $b2) . \"\\n\";\n     print implode(\" \", $c2) . \"\\n\\n\";\n     print implode(\" \", $a3) . \"\\n\";\n     print implode(\" \", $b3) . \"\\n\";\n     print implode(\" \", $c3) . \"\\n\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "f184975df1e953d70076805196df3db1", "src_uid": "8f0fad22f629332868c39969492264d3", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction char_count ($c, $s) {\n    $t = 0;\n    for ($i = 0; $i < 16; $i++) {\n        if ($c == $s[$i]) $t++;\n    }\n    return $t;\n}\n\nfscanf(STDIN, \"%d\", $k);\n$s = \"\";\nfor ($i = 0; $i < 4; $i++) {\n    fscanf(STDIN, \"%s\", $t);\n    $s = $s . $t;\n}\n// printf (\"%s\\n\", $s);\n$good = true;\nforeach (array(\"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\") as $c) {\n    if (char_count ($c, $s) > 2 * $k) $good = false;\n}\nif ($good) printf (\"YES\\n\");\nelse printf (\"NO\\n\");\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "b1706de20df391b5bd115ee637ada719", "src_uid": "5fdaf8ee7763cb5815f49c0c38398f16", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$k = fgets(STDIN);\n$met = array();\n\nfor ($i=0;$i<4;++$i) {\n  $st = fgets(STDIN);\n  for ($j=0;$j<4;++$j) {\n    if ($st[$j] !== '.') {\n      $met[$st[$j]]++;\n    }\n  }\n}\nsort($met);\nprint $met[count($met)-1] <= $k * 2 ? 'YES' : 'NO';", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "9c7f167c19c5e58f95d6c62ceb498fea", "src_uid": "5fdaf8ee7763cb5815f49c0c38398f16", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfunction check($k) {\n\techo \"check: \" . $k . \"<br>\";\n\tfor($i=0;$i<10;$i++) {\n\t\tprint \"no. \" . $i . \" : \" . $a[$i];\n\t}\n}\n$k = fgets(STDIN);\n$a = array();\nfor($i=0;$i<4;$i++) {\n\t$b = fgets(STDIN);\n\tfor($j=0;$j<4;$j++) {\n\t\tif($b[$j] != '.') {\n\t\t\t$a[$b[$j]] ++;\n\t\t}\n\t}\n}\n#check($k);\n\n$ok = 1;\nfor($i='0';$i<='9';$i++) {\n\tif($a[$i] > 2 * $k) {\n\t\t$ok = 0; break;\n\t}\n}\nif($ok == 1) echo \"YES\"; else echo \"NO\";\n\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "f94d5f42db5dcb817445b1ebfc37f8d1", "src_uid": "5fdaf8ee7763cb5815f49c0c38398f16", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split(trim(fgets(STDIN)));\n$c = str_split(trim(fgets(STDIN)));\n$d = str_split(trim(fgets(STDIN)));\n$e = str_split(trim(fgets(STDIN)));\n$f = array_merge($b, $c, $d, $e);\n$g = $a * 2;\n$i = array();\nfor($x = 0; $x < count($f); $x++)\n{\n    $h = 1;\n    for($y = 0; $y < count($f); $y++)\n    {\n        if($x == $y)\n        {\n            continue;\n        }\n        else\n        {\n            if(($f[$x] == $f[$y]) && ($f[$x] != \".\"))\n            {\n                $h++;\n            }\n        }\n    }\n    array_push($i, $h);\n}\nrsort($i);\nif($i[0] > $g)\n{\n    print \"NO\";\n}\nelse\n{\n    print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "6a42fb7038307466cb5a94706bd1fb24", "src_uid": "5fdaf8ee7763cb5815f49c0c38398f16", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = str_split(trim(fgets(STDIN)));\n$b = array_slice($a, 0, 3);\n$c = array_slice($a, 3);\nrsort($b);\nrsort($c);\n$d = array_sum($b);\n$e = array_sum($c);\nif($d == $e)\n{\n     print \"0\";\n}\nelse\n{\n     $f = max($d, $e) - min($d, $e);\n     if($d < $e)\n     {\n          $g = 9 - $b[2];\n          if($g >= $f)\n          {\n               print \"1\";\n          }\n          else\n          {\n               if($c[0] >= $f)\n               {\n                    print \"1\";\n               }\n               else\n               {\n                    $h = 9 - $b[1];\n                    if($g + $h >= $f)\n                    {\n                         print \"2\";\n                    }\n                    else\n                    {\n                         if($c[0] + $c[1] >= $f)\n                         {\n                              print \"2\";\n                         }\n                         else\n                         {\n                              if($g + $c[0] >= $f)\n                              {\n                                   print \"2\";\n                              }\n                              else\n                              {\n                                   print \"3\";\n                              }\n                         }\n                    }\n               }\n          }\n     }\n     elseif($d > $e)\n     {\n          $g = 9 - $c[2];\n          if($g >= $f)\n          {\n               print \"1\";\n          }\n          else\n          {\n               if($b[0] >= $f)\n               {\n                    print \"1\";\n               }\n               else\n               {\n                    $h = 9 - $c[1];\n                    if($g + $h >= $f)\n                    {\n                         print \"2\";\n                    }\n                    else\n                    {\n                         if($b[0] + $b[1] >= $f)\n                         {\n                              print \"2\";\n                         }\n                         else\n                         {\n                              if($g + $b[0] >= $f)\n                              {\n                                   print \"2\";\n                              }\n                              else\n                              {\n                                   print \"3\";\n                              }\n                         }\n                    }\n               }\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy", "implementation"], "code_uid": "ad5e230f82c37075ed7cd4f0bd5f2b29", "src_uid": "09601fd1742ffdc9f822950f1d3e8494", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a == 1)\n{\n     print \"0\";\n}\nelse\n{\n     $b = explode(\" \", trim(fgets(STDIN)));\n     if(count(array_unique($b)) > 3)\n     {\n          print \"-1\";\n     }\n     else\n     {\n          sort($b);\n          $c = array();\n          for($x = 0; $x < $a - 1; $x++)\n          {\n               if($b[$x + 1] - $b[$x] != 0)\n               {\n                    $c[$x] = $b[$x + 1] - $b[$x];\n               }\n          }\n          $c = array_unique($c);\n          sort($c);\n          if(count($c) == 0)\n          {\n               print \"0\";\n          }\n          elseif(count($c) == 1)\n          {\n               $d = $c[0];\n               $e = array_unique($b);\n               if((count($e) == 2) && ($d % 2 == 0))\n               {\n                    print $d / 2;\n               }\n               else\n               {\n                    print $d;\n               }\n          }\n          else\n          {\n               print \"-1\";\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "b9dff670b8cd110a942c0216f2e155aa", "src_uid": "d486a88939c132848a7efdf257b9b066", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $line = trim(fgets(STDIN));\n    $arr = str_split($line);\n    $cons = array();\n    $ptr = 0;\n    \n    for($i=0; $i<sizeof($arr); $i++)\n    {\n        if($arr[$i]!='!')\n            $cons[$ptr] = $arr[$i];\n        $ptr++;\n        if($ptr==4)\n            $ptr=0;\n    }\n    $buffer = array();\n    for($i=0; $i<4; $i++)\n        array_push($buffer, $cons[$i]);\n    unset($cons);\n    $cons = implode('', $buffer);\n    $cnt = array();\n    for($i=0; $i<strlen($line); $i++)\n    {\n        if($line[$i]=='!')\n            $cnt[$i%4]++;\n        if(!$cnt[$i%4])\n            $cnt[$i%4]=0;\n    }\n    $vals = array(\n        'R' => 0,\n        'B' => 0,\n        'Y' => 0,\n        'G' => 0\n        );\n    \n    for($i=0; $i<4; $i++)\n        $vals[$cons[$i]] = $cnt[$i];\n    \n    foreach($vals as $x)\n        echo $x . \" \";\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "number theory"], "code_uid": "0d0639127387817cd6d585f9b8877173", "src_uid": "64fc6e9b458a9ece8ad70a8c72126b33", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\n$f=fopen(\"php://stdin\",\"r\");\n\n$dead=array(0,0,0,0);\n\n$sequence=array(\"_\",\"_\",\"_\",\"_\");\n\n\n$i=0;\n\nwhile (FALSE !== ($char = fgetc($f))) {\n\n\n    if(($char!='!') && ($sequence[$i]==\"_\")) {\n\n        $sequence[$i]=$char;\n\n    }\n\n    else if($char=='!') {\n        $dead[$i]+=1;\n\n    }\n\n    $i++;\n\n    $i = $i == 4 ? 0 : $i;\n\n\n}\n\n$deadByColors = array ($sequence[0] => $dead[0]\n                       ,$sequence[1] => $dead[1]\n                       ,$sequence[2] => $dead[2]\n                       ,$sequence[3] => $dead[3]);\n\nfclose($f);\n\necho $deadByColors[\"R\"].\" \".$deadByColors[\"B\"].\" \".$deadByColors[\"Y\"].\" \".$deadByColors[\"G\"];\n\n\n", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "number theory"], "code_uid": "ddc12c2d0be357fa816ea14a92b9bc94", "src_uid": "64fc6e9b458a9ece8ad70a8c72126b33", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN)) + 1;\n$b = explode(\" \", trim(fgets(STDIN)));\narray_push($b, \"10000\");\n$c = trim(fgets(STDIN));\nsort($b);\n$e = array();\nfor($x = 0; $x < $a; $x++)\n{\n    $d = $b[$x] + $c;\n    for($y = 0; $y < $a; $y++)\n    {\n        if($b[$y] > $d)\n        {\n            array_push($e, $y - $x);\n            break;\n        }\n    }\n}\nrsort($e);\nprint $e[0];\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation", "binary search"], "code_uid": "09ba4fec0abf4c1af645e2207de0477c", "src_uid": "086d07bd6f9031df09bd6a6e8fe8f25c", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e) = explode(\" \", trim(fgets(STDIN)));\n$f = 1;\n$g = $b;\nif($g >= $a)\n{\n     print $f;\n}\nelse\n{\n     while(TRUE)\n     {\n          $g += min($c - $e, $b + ($f * $d) - $e);\n          $f++;\n          if($g >= $a)\n          {\n               break;\n          }\n     }\n     print $f;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ce5a69588726e9109c945cb0ecd8f4a6", "src_uid": "b743110117ce13e2090367fd038d3b50", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(' ', trim(fgets(STDIN)));\nif ($a[3] == 0) {\n    $n = 1000;\n} else {\n    $n = floor(($a[2] - $a[1]) / $a[3]);\n}\nif ($a[0] <= $a[1]) {\n    echo 1;\n} elseif (($n - 1) * $n * $a[3]/2 + $n * ($a[1] + $a[3] - $a[4]) + $a[1] >= $a[0]) {\n    for ($i = 1; $i <= $n; $i++) {\n        if (($i - 1) * $i * $a[3]/2 + $i * ($a[1] + $a[3] - $a[4]) + $a[1] >= $a[0]) {\n            echo $i + 1;\n            break;\n        }\n    }\n} else {\n    echo ceil(($a[0] - ($n - 1) * $n * $a[3]/2 - $n * ($a[1] + $a[3] - $a[4]) - $a[1])/($a[2]-$a[4]))+ $n + 1;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "ab255063d2eff85dded77ed0404481eb", "src_uid": "b743110117ce13e2090367fd038d3b50", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = explode(\" \", trim(fgets(STDIN)));\nsort($a);\nif(($a[0] == 2) && ($a[1] == 4) && ($a[2] == 4))\n{\n     print \"YES\";\n}\nelseif(($a[0] == 1) || ($a[1] == 1) || ($a[2] == 1))\n{\n     print \"YES\";\n}\nelseif((($a[0] == 2) && ($a[1] == 2)) || (($a[0] == 2) && ($a[2] == 2)) || (($a[1] == 2) && ($a[2] == 2)))\n{\n     print \"YES\";\n}\nelseif(($a[0] == 3) && ($a[1] == 3) && ($a[2] == 3))\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "constructive algorithms"], "code_uid": "1e963940689daa31f6633c3e4e6978c2", "src_uid": "df48af9f5e68cb6efc1214f7138accf9", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN,\"%d %d %d\\n\",$a[0],$a[1],$a[2]);\nfor ($i=0; $i<3; $i++)\n{\n    if ($a[$i]<5)\n        $b[$a[$i]]++;\n}\nif ($b[1]>=1 || $b[2]>=2 || $b[3]==3 || $b[2]==1 && $b[4]==2)\n    echo 'YES';\nelse\n    echo 'NO';\n?>", "lang_cluster": "PHP", "tags": ["brute force", "constructive algorithms"], "code_uid": "21daf0b88233faa786b4c0438739c1a7", "src_uid": "df48af9f5e68cb6efc1214f7138accf9", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\nif(($c == 1) && ($d == $a))\n{\n     print \"0\";\n}\nelseif($c == 1)\n{\n     if($b < $d)\n     {\n          $e = $d - $b + 1;\n          print $e;\n     }\n     elseif($b == $d)\n     {\n          print \"1\";\n     }\n     elseif($b > $d)\n     {\n          $e = $b - $d + 1;\n          print $e;\n     }\n}\nelseif($d == $a)\n{\n     if($b < $c)\n     {\n          $e = $c - $b + 1;\n          print $e;\n     }\n     elseif($b == $c)\n     {\n          print \"1\";\n     }\n     elseif($b > $c)\n     {\n          $e = $b - $c + 1;\n          print $e;\n     }\n}\nelseif($b <= $c)\n{\n     $e = $c - $b + 1;\n     $f = $d - $c + 1;\n     print $e + $f;\n}\nelseif(($b > $c) && ($b < $d))\n{\n     $e = $b - $c + 1;\n     $f = $d - $c + 1;\n     $g = $e + $f;\n     $h = $d - $b + 1;\n     $i = $d - $c + 1;\n     $j = $h + $i;\n     print min($g, $j);\n}\nelseif($b >= $d)\n{\n     $e = $b - $d + 1;\n     $f = $d - $c + 1;\n     print $e + $f;\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0030d05eec6d0a3d4e54a75672db0603", "src_uid": "5deaac7bd3afedee9b10e61997940f78", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nlist($n, $pos, $l, $r) = explode(' ', trim(fgets(STDIN)));\n\n$moves = 0;\n\nif (abs($pos - $l) < abs($r - $pos)) {\n    if ($l != 1) {\n        $moves += abs($pos - $l) + 1;\n        $pos = $l;\n    }\n\n    if ($r != $n) {\n        $moves += abs($r - $pos) + 1;\n    }\n} else {\n    if ($r != $n) {\n        $moves += abs($r - $pos) + 1;\n        $pos = $r;\n    }\n\n    if ($l != 1) {\n        $moves += abs($pos - $l) + 1;\n    }\n}\n\necho $moves;\n", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "0d9acd3d86003776302c02d2c792cb1c", "src_uid": "5deaac7bd3afedee9b10e61997940f78", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = explode(\" \", trim(fgets(STDIN)));\n$e = array();\nfor($x = 0; $x < $a; $x++)\n{\n    if(($d[$x] == $c) && ($d[$x + 1] == $c))\n    {\n        array_push($e, $x);\n    }\n}\nif(count($e) == 0)\n{\n    print \"0\";\n}\nelse\n{\n    $f = array();\n    for($x = 0; $x < count($e); $x++)\n    {\n        $g = 2;\n        $h = $d;\n        $i = 0;\n        $j = array();\n        $k = array();\n        for($y = $e[$x]; $y >= 0; $y--)\n        {\n            if($h[$y - 1] == $h[$y - 2])\n            {\n                $i++;\n            }\n            else\n            {\n                $i++;\n                array_push($j, $i);\n                $i = 0;\n                array_push($k, $h[$y - 1]);\n            }\n        }\n        $l = 0;\n        $m = array();\n        $n = array();\n        for($y = $e[$x]; $y < $a; $y++)\n        {\n            if($h[$y + 2] == $h[$y + 3])\n            {\n                $l++;\n            }\n            else\n            {\n                $l++;\n                array_push($m, $l);\n                $l = 0;\n                array_push($n, $h[$y + 2]);\n            }\n        }\n        for($y = 0; $y < min(count($j), count($m)); $y++)\n        {\n            if(($k[$y] == $n[$y]) && (($j[$y] + $m[$y]) >= 3))\n            {\n                $g += ($j[$y] + $m[$y]);\n            }\n            else\n            {\n                break;\n            }\n        }\n        array_push($f, $g);\n    }\n    print max($f);\n}\n?>", "lang_cluster": "PHP", "tags": ["two pointers", "brute force"], "code_uid": "39071bd6dd3788d97c3d9262d900a796", "src_uid": "d73d9610e3800817a3109314b1e6f88c", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    \n$stdin = fopen('php://stdin','r');\n$line = fgets($stdin);\n$arr=explode(' ',$line);\nfclose($stdin);\n$a=$arr[0];\n$b=$arr[1];\n$x=$arr[2];\n$y=$arr[3];\n\n//248228385 1458744978 824699604 1589655888\n//206174901 397413972\n\nfunction nod($i,$j)\n{\n    while(($i!=0)&&($j!=0)) { if($i>=$j) { $i=$i%$j; } else { $j=$j%$i; } }\n    return $i+$j;\n}\n\n// uprosh drob\n$nod=nod($x,$y);\nwhile ($nod>1)\n{\n    $x=$x/$nod;\n    $y=$y/$nod;\n    $nod=nod($x,$y);\n}\n$a2=0;\n$b2=0;\nwhile (($a2+$x<=$a)&&($b2+$y<=$b))\n{\n    $a2=$a2+$x;\n    $b2=$b2+$y;\n}\n\n\n\n\n$stdout=fopen('php://stdout','w');\nfwrite($stdout,$a2.' '.$b2);\nfclose($stdout);\n\n?>", "lang_cluster": "PHP", "tags": ["binary search", "number theory"], "code_uid": "bb8d4128b64874e6a4d7b59e3f88fb78", "src_uid": "97999cd7c6de79a4e39f56a41ff59e7a", "difficulty": 1800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = 1000000000;\nfor($x = 0; $x < $a; $x++)\n{\n     $d = 0;\n     for($y = 0; $y < $a; $y++)\n     {\n          $e = abs($y - $x) * $b[$y];\n          $d += $e;\n          $e = abs($y - 0) * $b[$y];\n          $d += $e;\n          $e = abs(0 - $x) * $b[$y];\n          $d += $e;\n          $e = abs($x - 0) * $b[$y];\n          $d += $e;\n          $e = abs($y - 0) * $b[$y];\n          $d += $e;\n          $e = abs($y - $x) * $b[$y];\n          $d += $e;\n     }\n     $c = min($c, $d);\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "c4f543098757c7cf851f8a452f319055", "src_uid": "a5002ddf9e792cb4b4685e630f1e1b8f", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = floor($a / 2);\n$d = 0;\nfor($x = $c; $x >= 1; $x--)\n{\n     $e = substr($b, 0, $x);\n     $f = substr($b, $x, $x);\n     if($e == $f)\n     {\n          $d = $x;\n          break;\n     }\n}\nif($d == 0)\n{\n     print $a;\n}\nelse\n{\n     $g = $a - $d;\n     $g++;\n     print $g;\n}\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "25f5b03aafe770a110839020a0ed2695", "src_uid": "ed8725e4717c82fa7cfa56178057bca3", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nlist($d, $e, $f) = explode(\" \", trim(fgets(STDIN)));\nif(($a != $d) && ($b != $e) && ($c != $f))\n{\n    print \"NO\";\n}\nelse\n{\n    print \"YES\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "adfd324a0fba2207661354627f6a970d", "src_uid": "91c9dbbceb467d5fd420e92c2919ecb6", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = 3;\n$m = 3;\nif(($a == $b) && ($b == $c))\n{\n     $d = 0;\n}\nelseif($a == $b)\n{\n     $d = 1;\n}\nelseif($a == $c)\n{\n     $d = 1;\n}\nelseif($b == $c)\n{\n     $d = 1;\n}\nelse\n{\n     $e = array(0 => $a, 1 => $b, 2 => $c);\n     $f = array(\"s\", \"m\", \"p\");\n     for($w = 0; $w < 3; $w++)\n     {\n          for($x = 1; $x <= 7; $x++)\n          {\n               for($y = $x + 1; $y <= 8; $y++)\n               {\n                    for($z = $y + 1; $z <= 9; $z++)\n                    {\n                         if(($z - $y > 1) || ($y - $x) > 1)\n                         {\n                              break;\n                         }\n                         $g = $x . $f[$w];\n                         $h = $y . $f[$w];\n                         $i = $z . $f[$w];\n                         $j = array($g, $h, $i);\n                         $k = array_intersect($e, $j);\n                         $l = 3 - count($k);\n                         $m = min($m, $l);\n                    }\n               }\n          }\n     }\n}\nprint min($d, $m);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "de20d748d0a5c81efa5c764f9b2241b1", "src_uid": "7e42cebc670e76ace967e01021f752d3", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = 0;\n$e = 0;\nfor($x = 0; $x < $a; $x++)\n{\n     if($b[$x] < $c[$x])\n     {\n          $d += $c[$x] - $b[$x];\n     }\n     elseif($b[$x] > $c[$x])\n     {\n          $e += $b[$x] - $c[$x];\n     }\n}\nif($d <= $e)\n{\n     print \"Yes\";\n}\nelse\n{\n     print \"No\";\n}\n?>", "lang_cluster": "PHP", "tags": ["math"], "code_uid": "198447c34adc95b6c49941642b59d6ef", "src_uid": "e0ddac5c6d3671070860dda10d50c28a", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a % 25 == 0)\n{\n     print \"0\";\n}\nelse\n{\n     $b = array();\n     $c = array();\n     for($x = strlen($a) - 1; $x >= 0; $x--)\n     {\n          if($a[$x] == 0)\n          {\n               $c[count($c)] = $x;\n               if(count($c) == 2)\n               {\n                    break;\n               }\n          }\n     }\n     if(count($c) == 2)\n     {\n          $d += (strlen($a) - 1) - $c[0];\n          $d += (strlen($a) - 2) - $c[1];\n          $b[count($b)] = $d;\n     }\n     $e = 0;\n     for($x = strlen($a) - 1; $x >= 0; $x--)\n     {\n          if($a[$x] == 0)\n          {\n               $e++;\n               $f = $x;\n               break;\n          }\n     }\n     for($x = strlen($a) - 1; $x >= 0; $x--)\n     {\n          if($a[$x] == 5)\n          {\n               $e++;\n               $g = $x;\n               break;\n          }\n     }\n     if($e == 2)\n     {\n          if($f < $g)\n          {\n               $h += (strlen($a) - 1) - $f;\n               $h += (strlen($a) - 2) - ($g - 1);\n          }\n          else\n          {\n               $h += (strlen($a) - 1) - $f;\n               $h += (strlen($a) - 2) - $g;\n               if($g == 0)\n               {\n                    $i = 0;\n                    for($x = 1; $x < $f; $x++)\n                    {\n                         if($a[$x] == 0)\n                         {\n                              $i++;\n                         }\n                         else\n                         {\n                              break;\n                         }\n                    }\n               }\n               $h += $i;\n          }\n          $b[count($b)] = $h;\n     }\n     $i2 = 0;\n     for($x = strlen($a) - 1; $x >= 0; $x--)\n     {\n          if($a[$x] == 5)\n          {\n               $i2++;\n               $j = $x;\n               break;\n          }\n     }\n     for($x = strlen($a) - 1; $x >= 0; $x--)\n     {\n          if($a[$x] == 2)\n          {\n               $i2++;\n               $k = $x;\n               break;\n          }\n     }\n     if($i2 == 2)\n     {\n          for($x = 0; $x < strlen($a); $x++)\n          {\n               if($a[$x] == 0)\n               {\n                    $j2++;\n               }\n          }\n          if(strlen($a) == 2)\n          {\n               $b[count($b)] = 1;\n          }\n          elseif(strlen($a) - $j2 != 2)\n          {\n               for($x = 0; $x < strlen($a); $x++)\n               {\n                    if(($a[$x] != 0) && ($x != $j) && ($x != $k))\n                    {\n                         $l = $x;\n                         break;\n                    }\n               }\n               if(($l < $j) && ($l < $k))\n               {\n                    if($j < $k)\n                    {\n                         $m += (strlen($a) - 1) - $j;\n                         $m += (strlen($a) - 2) - ($k - 1);\n                    }\n                    else\n                    {\n                         $m += (strlen($a) - 1) - $j;\n                         $m += (strlen($a) - 2) - $k;\n                    }\n                    $b[count($b)] = $m;\n               }\n               elseif(($l > $j) && ($l > $k))\n               {\n                    if($j < $k)\n                    {\n                         $m += (strlen($a) - 1) - $j;\n                         $m += (strlen($a) - 2) - ($k - 1);\n                    }\n                    else\n                    {\n                         $m += (strlen($a) - 1) - $j;\n                         $m += (strlen($a) - 2) - $k;\n                    }\n                    $m += $l - 2;\n                    $b[count($b)] = $m;\n               }\n               elseif(($l > $j) && ($l < $k))\n               {\n                    $m += (strlen($a) - 1) - $j;\n                    $m += (strlen($a) - 2) - ($k - 1);\n                    $m += $l - 1;\n               }\n               elseif(($l > $k) && ($l < $j))\n               {\n                    $m += (strlen($a) - 1) - $j;\n                    $m += (strlen($a) - 2) - $k;\n                    $m += $l - 1;\n               }\n               $b[count($b)] = $m;\n          }\n     }\n     $i2 = 0;\n     $m = 0;\n     for($x = strlen($a) - 1; $x >= 0; $x--)\n     {\n          if($a[$x] == 5)\n          {\n               $i2++;\n               $j = $x;\n               break;\n          }\n     }\n     for($x = strlen($a) - 1; $x >= 0; $x--)\n     {\n          if($a[$x] == 7)\n          {\n               $i2++;\n               $k = $x;\n               break;\n          }\n     }\n     if($i2 == 2)\n     {\n          $j2 = 0;\n          for($x = 0; $x < strlen($a); $x++)\n          {\n               if($a[$x] == 0)\n               {\n                    $j2++;\n               }\n          }\n          if(strlen($a) == 2)\n          {\n               $b[count($b)] = 1;\n          }\n          elseif(strlen($a) - $j2 != 2)\n          {\n               for($x = 0; $x < strlen($a); $x++)\n               {\n                    if(($a[$x] != 0) && ($x != $j) && ($x != $k))\n                    {\n                         $l = $x;\n                         break;\n                    }\n               }\n               if(($l < $j) && ($l < $k))\n               {\n                    if($j < $k)\n                    {\n                         $m += (strlen($a) - 1) - $j;\n                         $m += (strlen($a) - 2) - ($k - 1);\n                    }\n                    else\n                    {\n                         $m += (strlen($a) - 1) - $j;\n                         $m += (strlen($a) - 2) - $k;\n                    }\n                    $b[count($b)] = $m;\n               }\n               elseif(($l > $j) && ($l > $k))\n               {\n                    if($j < $k)\n                    {\n                         $m += (strlen($a) - 1) - $j;\n                         $m += (strlen($a) - 2) - ($k - 1);\n                    }\n                    else\n                    {\n                         $m += (strlen($a) - 1) - $j;\n                         $m += (strlen($a) - 2) - $k;\n                    }\n                    $m += $l - 2;\n                    $b[count($b)] = $m;\n               }\n               elseif(($l > $j) && ($l < $k))\n               {\n                    $m += (strlen($a) - 1) - $j;\n                    $m += (strlen($a) - 2) - ($k - 1);\n                    $m += $l - 1;\n               }\n               elseif(($l > $k) && ($l < $j))\n               {\n                    $m += (strlen($a) - 1) - $j;\n                    $m += (strlen($a) - 2) - $k;\n                    $m += $l - 1;\n               }\n               $b[count($b)] = $m;\n          }\n     }\n     if(count($b) == 0)\n     {\n          print \"-1\";\n     }\n     else\n     {\n          print min($b);\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "greedy"], "code_uid": "8acc88b6f26b5ac4d5f6a152392fb5be", "src_uid": "ea1c737956f88be94107f2565ca8bbfd", "difficulty": 2100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = trim(fgets(STDIN));\n$e = $a[0];\n$f = $a[1];\n$g = $b[0];\n$h = $b[1];\n$i = $c[0];\n$j = $c[1];\n$k = $d[0];\n$l = $d[1];\nif($e == \"X\")\n{\n     $m = $f . $h . $g . $f . $h . $g;\n     if($i == \"X\")\n     {\n          $n = $j . $l . $k;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($j == \"X\")\n     {\n          $n = $l . $k . $i;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($k == \"X\")\n     {\n          $n = $i . $j . $l;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($l == \"X\")\n     {\n          $n = $k . $i . $j;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n}\nelseif($f == \"X\")\n{\n     $m = $h . $g . $e . $h . $g . $e;\n     if($i == \"X\")\n     {\n          $n = $j . $l . $k;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($j == \"X\")\n     {\n          $n = $l . $k . $i;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($k == \"X\")\n     {\n          $n = $i . $j . $l;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($l == \"X\")\n     {\n          $n = $k . $i . $j;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n}\nelseif($g == \"X\")\n{\n     $m = $e . $f . $h . $e . $f . $h;\n     if($i == \"X\")\n     {\n          $n = $j . $l . $k;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($j == \"X\")\n     {\n          $n = $l . $k . $i;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($k == \"X\")\n     {\n          $n = $i . $j . $l;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($l == \"X\")\n     {\n          $n = $k . $i . $j;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n}\nelseif($h == \"X\")\n{\n     $m = $g . $e . $f . $g . $e . $f;\n     if($i == \"X\")\n     {\n          $n = $j . $l . $k;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($j == \"X\")\n     {\n          $n = $l . $k . $i;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($k == \"X\")\n     {\n          $n = $i . $j . $l;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n     elseif($l == \"X\")\n     {\n          $n = $k . $i . $j;\n          $o = 0;\n          for($x = 0; $x < 4; $x++)\n          {\n               $p = substr($m, $x, 3);\n               if($p == $n)\n               {\n                    $o = 1;\n                    break;\n               }\n          }\n          if($o == 0)\n          {\n               print \"NO\";\n          }\n          else\n          {\n               print \"YES\";\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "34d608bf55093757708ce00690c7c27e", "src_uid": "46f051f58d626587a5ec449c27407771", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = str_split(trim(fgets(STDIN)));\n$c = 0;\n$d = 1;\n$e = $a;\nfor($z = 1; $z <= $a - 1; $z++)\n{\n     $d++;\n     $e--;\n     for($x = 0; $x < $e; $x++)\n     {\n          $f = array_slice($b, $x, $d);\n          $g = 0;\n          $h = 0;\n          $i = 0;\n          $j = 0;\n          for($y = 0; $y < count($f); $y++)\n          {\n               switch($f[$y])\n               {\n                    case \"U\":\n                    $g++;\n                    break;\n                    case \"D\";\n                    $h++;\n                    break;\n                    case \"L\";\n                    $i++;\n                    break;\n                    case \"R\";\n                    $j++;\n                    break;\n               }\n          }\n          if(($g == $h) && ($i == $j))\n          {\n               $c++;\n          }\n     }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "cbe0b02a7f378a20484f3c58cfb914b5", "src_uid": "7bd5521531950e2de9a7b0904353184d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/*\nBy Tianyi Chen\n*/\n$s;$ans=0;$ci=0;$cj=0;\nfscanf(STDIN,\"%d\",$len);\nfscanf(STDIN,\"%s\",$str);\n++$s[0][0];\nfor($i=0;$i<$len;++$i){\n    switch($str[$i]){\n        case 'L':--$ci;break;\n        case 'R':++$ci;break;\n        case 'U':++$cj;break;\n        case 'D':--$cj;\n    };\n    $ans+=$s[$ci][$cj];\n    ++$s[$ci][$cj];\n}\nprint($ans);", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "25f664f5a73744c8bbb76c8b76389748", "src_uid": "7bd5521531950e2de9a7b0904353184d", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array();\n$d = 0;\n$g = 0;\n$h = 0;\nfor($x = 0; $x < strlen($a); $x++)\n{\n     if($a[$x] == $b[$d])\n     {\n          if($h < ($x + 1) - $g - 1)\n          {\n               $h = ($x + 1) - $g - 1;\n          }\n          $g = $x + 1;\n          $c[count($c)] = $x + 1;\n          $d++;\n          if($d == strlen($b))\n          {\n               break;\n          }\n     }\n}\nif($h < strlen($a) - $g)\n{\n     $h = strlen($a) - $g;\n}\n$e = array();\n$f = strlen($b) - 1;\n$g = strlen($a);\n$i = 0;\nfor($x = strlen($a) - 1; $x >= 0; $x--)\n{\n     if($a[$x] == $b[$f])\n     {\n          if($i == 0)\n          {\n               if($h < $g - ($x + 1))\n               {\n                    $h = $g - ($x + 1);\n               }\n               $g = $x + 1;\n               $i = 1;\n          }\n          else\n          {\n               if($h < $g - ($x + 1) - 1)\n               {\n                    $h = $g - ($x + 1) - 1;\n               }\n               $g = $x + 1;\n          }\n          $e[count($e)] = $x + 1;\n          $f--;\n          if($f < 0)\n          {\n               break;\n          }\n     }\n}\nif($h < $g - 1)\n{\n     $h = $g - 1;\n}\n$e = array_reverse($e);\nfor($x = 0; $x < strlen($b) - 1; $x++)\n{\n     if(($e[$x + 1] > $c[$x + 1]) && ($h < $e[$x + 1] - $c[$x] - 1))\n     {\n          $h = $e[$x + 1] - $c[$x] - 1;\n     }\n}\nprint $h;\n?>", "lang_cluster": "PHP", "tags": ["greedy", "implementation"], "code_uid": "9f1647ceff65db105b98d020a566ad84", "src_uid": "0fd33e1bdfd6c91feb3bf00a2461603f", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// STDIN = fopen('input.txt', 'r');\n\n$n = trim(fgets(STDIN)) + 0;\necho calc($n);\n\n\nfunction calc($n){\n\tif($n == 1){\n\t\treturn 1;\n\t} else {\n\n\t\t$check = function($div){\n\t\t\t$s = floor(sqrt($div));\n\t\t\tfor($j = 2; $j <= $s; $j++){\n\t\t\t\tif(fmod($div, $j) == 0){\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn true;\n\t\t};\n\t\t$primeDivs = [];\n\n\t\t$s = floor(sqrt($n));\n\t\tfor($div = 2; $div <= $s; $div++){\n\t\t\tif(fmod($n, $div) == 0) {\n\t\t\t\tif ($check($div)){\n\t\t\t\t\t$primeDivs[] = $div;\n\t\t\t\t\tif(count($primeDivs) == 2) {break;}\n\t\t\t\t}\n\t\t\t\t$div2 = $n / $div;\n\t\t\t\tif ($div2 != $div && $check($div2)){\n\t\t\t\t\t$primeDivs[] = $div2;\n\t\t\t\t\tif(count($primeDivs) == 2) {break;}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\t// echo \"\\n\".$n.' ['.implode(' ', $primeDivs).'] ';\n\t}\n\tif(count($primeDivs) == 0){\n\t\treturn $n;\n\t} else if(count($primeDivs) == 1){\n\t\treturn $primeDivs[0];\n\t} else {\n\t\treturn 1;\n\t}\n}", "lang_cluster": "PHP", "tags": ["number theory"], "code_uid": "16cb77749e70f702595677fcdf32205b", "src_uid": "f553e89e267c223fd5acf0dd2bc1706b", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = 1;\n$d = $a;\nwhile(TRUE)\n{\n     $e = floor(($c + $d) / 2);\n     $f = ($e * ($e + 1)) / 2;\n     if(($f - $b) < ($a - $e))\n     {\n          $c = $e + 1;\n     }\n     elseif(($f - $b) == ($a - $e))\n     {\n          print $f - $b;\n          break;\n     }\n     elseif(($f - $b) > ($a - $e))\n     {\n          $d = $e - 1;\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "binary search"], "code_uid": "001bd9ec2da85143b6af305906c978a4", "src_uid": "17b5ec1c6263ef63c668c2b903db1d77", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$h = fopen(\"php://stdin\", \"r\");\n\n$data=trim(fgets($h));\n$data_arr=explode(' ', $data);\n$n=$data_arr[0];\n$k=$data_arr[1];\n\n$mess=0;\n$rem=$n;\n\nfor($i=1; $i<=$k; $i++) {\n    \n    if($i>=$n-$i+1) {\n        break;\n    }\n\n    $mess+=2*($rem-1)-1;\n    $rem=$rem-2;\n    \n}\n\necho $mess;", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "7cef83ecb84d5d028c04ffdd824d9750", "src_uid": "ea36ca0a3c336424d5b7e1b4c56947b0", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = floor($a / 2);\nif($c >= $b)\n{\n     $d = 0;\n     for($x = 1; $x <= $b; $x++)\n     {\n          $d += ($a - 1);\n          $a--;\n          $d += ($a - 1);\n          $a--;\n     }\n     printf(\"%.0f\", $d);\n}\nelse\n{\n     $e = $b - $c;\n     $f = $e % 2;\n     $d = 0;\n     for($x = 1; $x <= $c; $x++)\n     {\n          $d += ($a - 1);\n          $a--;\n          $d += ($a - 1);\n          $a--;\n     }\n     if($f == 0)\n     {\n          printf(\"%.0f\", $d);\n     }\n     else\n     {\n          printf(\"%.0f\", $d);\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy"], "code_uid": "573e42cd1f641e94dca952798afab4c8", "src_uid": "ea36ca0a3c336424d5b7e1b4c56947b0", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = array();\n$d = 0;\n$e = 1;\nfor($x = 1; $x <= 1000; $x++)\n{\n     $d += $e;\n     $e++;\n     $c[$x] = $d;\n}\nif($a < $b)\n{\n     $f = $b - $a;\n     $g = floor($f / 2);\n     $h = ceil($f / 2);\n     $i = $c[$g] + $c[$h];\n}\nelseif($a > $b)\n{\n     $f = $a - $b;\n     $g = floor($f / 2);\n     $h = ceil($f / 2);\n     $i = $c[$g] + $c[$h];\n}\nprint $i;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "brute force"], "code_uid": "35a2e8d611ce21b97ed875675b38f446", "src_uid": "d3f2c6886ed104d7baba8dd7b70058da", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$powers = [];\nfor($i = 1; $i <= 8; ++$i) {\n\t$powers[] = pow(7, $i);\n}\nfunction set_bits($n, $dn, &$a) {\n\tif ($n == 0) {\n\t\t$a[0] += $dn;\n\t\treturn ($a[0] < 2);\n\t}\n\tglobal $powers;\n\t$i = 0;\n\tfor($i = 0; $i < $dn; ++$i) {\t\t\n\t\t$d = $n%7;\n\t\t//echo \"$n%$powers[$i] = $d\\n\";\n\t\tif (++$a[$d] > 1) {\n\t\t\treturn false;\n\t\t}\n\t\t$n = floor($n/7);\n\t}\n\treturn true;\n}\n\n$fp = fopen('php://stdin', 'r');\nlist($n, $m) = array_map('intval', explode(' ', fgets($fp)));\n$dn = max(1, ceil(log($n, 7)));\n$dm = max(1, ceil(log($m, 7)));\nif ($dn + $dm > 7) {\n\tdie('0');\n}\n\n$zeros = array_fill(0, 7, 0);\n\n$result = 0;\nfor($i = 0; $i < $n; ++$i) {\n\t$bits = $zeros;\n\tif (!set_bits($i, $dn, $bits)) {\n\t\tcontinue;\n\t}\n\tfor($j = 0; $j < $m; ++$j) {\n\t\t$bits2 = $bits;\n\t\tif (set_bits($j, $dm, $bits2)) {\n\t\t\t++$result;\n\t\t}\n\t\t//echo \"$i:$j \".implode(' ', $bits2).\"\\n\";\n\t}\n}\necho $result;", "lang_cluster": "PHP", "tags": ["brute force", "math", "combinatorics"], "code_uid": "89ad1dd534f178691adf2d64a9d473cf", "src_uid": "0930c75f57dd88a858ba7bb0f11f1b1c", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$f = array();\n$g = array();\n$o = 0;\nfor($x = 1; $x <= $a; $x++)\n{\n    list($b, $c, $d, $e) = explode(\" \", trim(fgets(STDIN)));\n    array_push($f, $b);\n    array_push($g, $c);\n    array_push($f, $d);\n    array_push($g, $e);\n    array_push($f, $d);\n    array_push($g, $c);\n    array_push($f, $b);\n    array_push($g, $e);\n    $o += ($d - $b) * ($e - $c); \n}\n$h = $f;\nsort($h);\n$i = $h[0];\n$j = $h[count($h) - 1];\n$k = $g;\nsort($k);\n$l = $k[0];\n$m = $k[count($k) - 1];\n$n = ($j - $i) * ($m - $l);\nif(($n == $o) && (($j - $i) == ($m - $l)))\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c673904fb24b016163e4cb40dbc07a14", "src_uid": "f63fc2d97fd88273241fce206cc217f2", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nsort($b);\n$c = 0;\nfor($x = 0; $x < $a; $x++)\n{\n    $d = array_sum(array_slice($b, 0, $x + 1));\n    $e = array_sum(array_slice($b, $x + 1));\n    if($d == $e)\n    {\n        $c = 1;\n        break;\n    }\n    elseif($d > $e)\n    {\n        $f = $d - $e;\n        if(($f == 200) && ($b[0] == 100))\n        {\n            $c = 1;\n        }\n        break;\n    }\n}\nif($c == 1)\n{\n    print \"YES\";\n}\nelse\n{\n    print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "0f67ea522361867429f4609f089b38fc", "src_uid": "9679acef82356004e47b1118f8fc836a", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nsort($b);\n$c = 0;\nwhile(TRUE)\n{\n     $d = round(array_sum($b) / $a);\n     if($d == 5)\n     {\n          break;\n     }\n     else\n     {\n          $b[$c] = 5;\n          $c++;\n     }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "964dda987b94ed3e26b80614cc004b92", "src_uid": "715608282b27a0a25b66f08574a6d5bd", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nlist($d, $e) = explode(\":\", $c);\nlist($a2, $b2, $c2) = explode(\" \", trim(fgets(STDIN)));\nlist($d2, $e2) = explode(\":\", $c2);\nlist($a3, $b3, $c3) = explode(\" \", trim(fgets(STDIN)));\nlist($d3, $e3) = explode(\":\", $c3);\nlist($a4, $b4, $c4) = explode(\" \", trim(fgets(STDIN)));\nlist($d4, $e4) = explode(\":\", $c4);\nlist($a5, $b5, $c5) = explode(\" \", trim(fgets(STDIN)));\nlist($d5, $e5) = explode(\":\", $c5);\n$f = array($a, $b, $a2, $b2, $a3, $b3, $a4, $b4, $a5, $b5);\n$g = array_unique($f);\nsort($g);\n$g2 = $g;\n$g3 = count($g2);\nfor($x = 0; $x < $g3; $x++)\n{\n    $g4 = 0;\n    for($y = 0; $y < count($f); $y++)\n    {\n        if($g2[$x] == $f[$y])\n        {\n            $g4++;\n            if($g4 == 3)\n            {\n                unset($g2[$x]);\n                break;\n            }\n        }\n    }\n}\nsort($g2);\nfor($y = 0; $y < count($g2); $y++)\n{\n    if($g2[$y] == \"BERLAND\")\n    {\n        array_splice($g2, $y, 1);\n        break;\n    }\n}\nfor($x = 0; $x < count($g); $x++)\n{\n    if($g[$x] == \"BERLAND\")\n    {\n        $ber = $x;\n    }\n    if($g[$x] == $g2[0])\n    {\n        $reb = $x;\n    }\n}\n$h = array(\"0\", \"0\", \"0\", \"0\");\n$i = array(\"0\", \"0\", \"0\", \"0\");\n$j = array(\"0\", \"0\", \"0\", \"0\");\nif($d > $e)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a)\n        {\n            $h[$x] += 3;\n            $i[$x] += $d;\n            $j[$x] += $e;\n        }\n        if($g[$x] == $b)\n        {\n            $i[$x] += $e;\n            $j[$x] += $d;\n        }\n    }\n}\nelseif($d == $e)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a)\n        {\n            $h[$x] += 1;\n            $i[$x] += $d;\n            $j[$x] += $e;\n        }\n        if($g[$x] == $b)\n        {\n            $h[$x] += 1;\n            $i[$x] += $e;\n            $j[$x] += $d;\n        }\n    }\n}\nelseif($d < $e)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a)\n        {\n            $i[$x] += $d;\n            $j[$x] += $e;\n        }\n        if($g[$x] == $b)\n        {\n            $h[$x] += 3;\n            $i[$x] += $e;\n            $j[$x] += $d;\n        }\n    }\n}\nif($d2 > $e2)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a2)\n        {\n            $h[$x] += 3;\n            $i[$x] += $d2;\n            $j[$x] += $e2;\n        }\n        if($g[$x] == $b2)\n        {\n            $i[$x] += $e2;\n            $j[$x] += $d2;\n        }\n    }\n}\nelseif($d2 == $e2)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a2)\n        {\n            $h[$x] += 1;\n            $i[$x] += $d2;\n            $j[$x] += $e2;\n        }\n        if($g[$x] == $b2)\n        {\n            $h[$x] += 1;\n            $i[$x] += $e2;\n            $j[$x] += $d2;\n        }\n    }\n}\nelseif($d2 < $e2)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a2)\n        {\n            $i[$x] += $d2;\n            $j[$x] += $e2;\n        }\n        if($g[$x] == $b2)\n        {\n            $h[$x] += 3;\n            $i[$x] += $e2;\n            $j[$x] += $d2;\n        }\n    }\n}\nif($d3 > $e3)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a3)\n        {\n            $h[$x] += 3;\n            $i[$x] += $d3;\n            $j[$x] += $e3;\n        }\n        if($g[$x] == $b3)\n        {\n            $i[$x] += $e3;\n            $j[$x] += $d3;\n        }\n    }\n}\nelseif($d3 == $e3)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a3)\n        {\n            $h[$x] += 1;\n            $i[$x] += $d3;\n            $j[$x] += $e3;\n        }\n        if($g[$x] == $b)\n        {\n            $h[$x] += 1;\n            $i[$x] += $e3;\n            $j[$x] += $d3;\n        }\n    }\n}\nelseif($d3 < $e3)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a3)\n        {\n            $i[$x] += $d3;\n            $j[$x] += $e3;\n        }\n        if($g[$x] == $b3)\n        {\n            $h[$x] += 3;\n            $i[$x] += $e3;\n            $j[$x] += $d3;\n        }\n    }\n}\nif($d4 > $e4)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a4)\n        {\n            $h[$x] += 3;\n            $i[$x] += $d4;\n            $j[$x] += $e4;\n        }\n        if($g[$x] == $b4)\n        {\n            $i[$x] += $e4;\n            $j[$x] += $d4;\n        }\n    }\n}\nelseif($d4 == $e4)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a4)\n        {\n            $h[$x] += 1;\n            $i[$x] += $d4;\n            $j[$x] += $e4;\n        }\n        if($g[$x] == $b4)\n        {\n            $h[$x] += 1;\n            $i[$x] += $e4;\n            $j[$x] += $d4;\n        }\n    }\n}\nelseif($d4 < $e4)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a4)\n        {\n            $i[$x] += $d4;\n            $j[$x] += $e4;\n        }\n        if($g[$x] == $b4)\n        {\n            $h[$x] += 3;\n            $i[$x] += $e4;\n            $j[$x] += $d4;\n        }\n    }\n}\nif($d5 > $e5)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a5)\n        {\n            $h[$x] += 3;\n            $i[$x] += $d5;\n            $j[$x] += $e5;\n        }\n        if($g[$x] == $b5)\n        {\n            $i[$x] += $e5;\n            $j[$x] += $d5;\n        }\n    }\n}\nelseif($d5 == $e5)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a5)\n        {\n            $h[$x] += 1;\n            $i[$x] += $d5;\n            $j[$x] += $e5;\n        }\n        if($g[$x] == $b5)\n        {\n            $h[$x] += 1;\n            $i[$x] += $e5;\n            $j[$x] += $d5;\n        }\n    }\n}\nelseif($d5 < $e5)\n{\n    for($x = 0; $x < 4; $x++)\n    {\n        if($g[$x] == $a5)\n        {\n            $i[$x] += $d5;\n            $j[$x] += $e5;\n        }\n        if($g[$x] == $b5)\n        {\n            $h[$x] += 3;\n            $i[$x] += $e5;\n            $j[$x] += $d5;\n        }\n    }\n}\nfor($x = 0; $x < 4; $x++)\n{\n    if($g[$x] == \"BERLAND\")\n    {\n        break;\n    }\n}\n$k = $h[$x] + 3;\n$l = $h;\nrsort($l);\nif($l[1] > $k)\n{\n    print \"IMPOSSIBLE\";\n}\nelse\n{  \n    $m = array();\n    $n = array();\n    $o = array();\n    $h[$ber] += 3;\n    for($w = 0; $w <= 50; $w++)\n    {\n        for($x = 0; $x < $w; $x++)\n        {\n            $g2 = $g;\n            $h2 = $h;\n            $i2 = $i;\n            $j2 = $j;\n            $i2[$ber] = $i[$ber] + $w;\n            $i2[$reb] = $i[$reb] + $x;\n            $j2[$ber] = $j[$ber] + $x;\n            $j2[$reb] = $j[$reb] + $w;\n            for($y = 0; $y < 4; $y++)\n            {\n                for($z = 0; $z < 4; $z++)\n                {\n                    if(($i2[$y] > $i2[$z]) && ($y > $z))\n                    {\n                        $p = $g2[$y];\n                        $r = $g2[$z];\n                        array_splice($g2, $y, 1);\n                        array_splice($g2, $z, 1, array($p, $r));\n                        $p = $h2[$y];\n                        $r = $h2[$z];\n                        array_splice($h2, $y, 1);\n                        array_splice($h2, $z, 1, array($p, $r));\n                        $p = $i2[$y];\n                        $r = $i2[$z];\n                        array_splice($i2, $y, 1);\n                        array_splice($i2, $z, 1, array($p, $r));\n                        $p = $j2[$y];\n                        $r = $j2[$z];\n                        array_splice($j2, $y, 1);\n                        array_splice($j2, $z, 1, array($p, $r));\n                    }\n                }\n             }\n             for($y = 0; $y < 4; $y++)\n             {\n                for($z = 0; $z < 4; $z++)\n                {\n                    if((($i2[$y] - $j2[$y]) > ($i2[$z] - $j2[$z])) && ($y > $z))\n                    {\n                        $p = $g2[$y];\n                        $r = $g2[$z];\n                        array_splice($g2, $y, 1);\n                        array_splice($g2, $z, 1, array($p, $r));\n                        $p = $h2[$y];\n                        $r = $h2[$z];\n                        array_splice($h2, $y, 1);\n                        array_splice($h2, $z, 1, array($p, $r));\n                        $p = $i2[$y];\n                        $r = $i2[$z];\n                        array_splice($i2, $y, 1);\n                        array_splice($i2, $z, 1, array($p, $r));\n                        $p = $j2[$y];\n                        $r = $j2[$z];\n                        array_splice($j2, $y, 1);\n                        array_splice($j2, $z, 1, array($p, $r));\n                    }\n                }\n             }\n             for($y = 0; $y < 4; $y++)\n             {\n                for($z = 0; $z < 4; $z++)\n                {\n                    if(($h2[$y] > $h2[$z]) && ($y > $z))\n                    {\n                        $p = $g2[$y];\n                        $r = $g2[$z];\n                        array_splice($g2, $y, 1);\n                        array_splice($g2, $z, 1, array($p, $r));\n                        $p = $h2[$y];\n                        $r = $h2[$z];\n                        array_splice($h2, $y, 1);\n                        array_splice($h2, $z, 1, array($p, $r));\n                        $p = $i2[$y];\n                        $r = $i2[$z];\n                        array_splice($i2, $y, 1);\n                        array_splice($i2, $z, 1, array($p, $r));\n                        $p = $j2[$y];\n                        $r = $j2[$z];\n                        array_splice($j2, $y, 1);\n                        array_splice($j2, $z, 1, array($p, $r));\n                    }\n                }\n            }\n            if(($g2[0] == \"BERLAND\") || ($g2[1] == \"BERLAND\"))\n            {\n                array_push($m, $w);\n                array_push($n, $x);\n                array_push($o, $w - $x);\n            }\n        }\n    }\n    $s = min($o);\n    $t = array();\n    $v = array();\n    for($x = 0; $x < count($o); $x++)\n    {\n        if($o[$x] == $s)\n        {\n            $t[$x] = $n[$x];\n            $v[$x] = 1;\n        }\n    }\n    $u = min($t);\n    for($x = 0; $x < count($o); $x++)\n    {\n        if(($n[$x] == $u) && ($v[$x] == TRUE))\n        {\n            break;\n        }\n    }\n    print $m[$x] . \":\" . $n[$x];\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "faca4ff41695c7c9ea662cc92bbb3686", "src_uid": "5033d51c67b7ae0b1a2d9fd292fdced1", "difficulty": 1800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\nlist($d, $e, $f) = explode(\" \", trim(fgets(STDIN)));\nlist($g, $h, $i) = explode(\" \", trim(fgets(STDIN)));\n$j = 0;\n$k = 0;\nif($b <= $f)\n{\n     $j = (($f + 1) - $b) + $b;\n     $k = ($j - $b) * $h;\n     $b = $j;\n}\n$l = 0;\n$a2 = $a;\n$d2 = $d;\nwhile(TRUE)\n{\n     $a2 -= ($e - $c);\n     $d2 -= ($b - $f);\n     if(($a2 > 0) && ($d2 <= 0))\n     {\n          $l = 1;\n          break;\n     }\n     elseif($a2 <= 0)\n     {\n          break;\n     }\n}\nif($l == 1)\n{\n     print $k;\n}\nelse\n{\n     $m = 1000000000;\n     for($x = 0; $x <= 100; $x++)\n     {\n          for($y = 0; $y <= ($e - $c); $y++)\n          {\n               $a2 = $a;\n               $b2 = $b + $x;\n               $c2 = $c + $y;\n               $d2 = $d;\n               $n = 0;\n               while(TRUE)\n               {\n                    $a2 -= ($e - $c2);\n                    $d2 -= ($b2 - $f);\n                    if(($a2 > 0) && ($d2 <= 0))\n                    {\n                         $m = min($m, ($x * $h) + ($y * $i) + $n);\n                         break;\n                    }\n                    elseif($a2 <= 0)\n                    {\n                         $o = 1 - $a2;\n                         $a2 += ($e - $c2) + $o;\n                         $d2 += ($b2 - $f);\n                         $n += ($o * $g);\n                    }\n               }\n          }\n     }\n     print ($m + $k);\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "49d10488d5546f88b58fde3531822e15", "src_uid": "bf8a133154745e64a547de6f31ddc884", "difficulty": 1800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\nlist($c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = trim(fgets(STDIN));\n$f = $c * $d - $e;\n$g = array(0);\n$h = 0;\nfor($x = 0; $x <= $f; $x++)\n{\n    $i = ceil(($f - $h) / $c) * $a;\n    $g[$x] = $i + ($h * $b);\n    $h++;\n}\nprint min($g);\n?>", "lang_cluster": "PHP", "tags": ["math", "dp", "implementation"], "code_uid": "b5e2ce4833b960f272b130fa9030a24c", "src_uid": "c6ec932b852e0e8c30c822a226ef7bcb", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nfscanf(STDIN, \"%f %f\", $c , $d);\nfscanf(STDIN, \"%f %f\", $n, $m);\nfscanf(STDIN, \"%f\", $k);\n$x=max($n*$m-$k,0);\n$r=$x*$c;\nfor ($i = 0; $i<=$x; $i++){\n    $r=min($r, $i*$c+max($x-$i*$n,0)*$d);\n}\nfprintf(STDOUT, \"%.0f\",$r);", "lang_cluster": "PHP", "tags": ["math", "dp", "implementation"], "code_uid": "6bc2e0ac5784607a2fb9cb3d60256020", "src_uid": "c6ec932b852e0e8c30c822a226ef7bcb", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN));\n    $rs = 0;\n    for ($i=1; $i<$n; $i++)\n    {\n        $x=$i;\n        $k=0;\n        for ($j=1; $j<$n-1 && $k==0; $j++)\n        {\n            if ((($x+$n-1) % $n) == 0)\n                $k=1;\n            $x=($x*$i) % $n;\n        }\n        if ($k==0) $rs++;\n    }\n    echo $rs;\n\n?>\n", "lang_cluster": "PHP", "tags": ["math", "implementation", "number theory"], "code_uid": "2349ddee03f750dbccfff5fce9a2b6f8", "src_uid": "3bed682b6813f1ddb54410218c233cff", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = str_split(trim(fgets(STDIN)));\nfor($x = 0; $x < count($a); $x++)\n{\n     if($a[$x] == \".\")\n     {\n          $b = array_slice($a, 0, $x);\n          $c = array_slice($a, $x + 1);\n          break;\n     }\n}\nfor($x = 0; $x < count($c); $x++)\n{\n     if($c[$x] == \"e\")\n     {\n          $d = array_slice($c, 0, $x);\n          $e = array_slice($c, $x + 1);\n     }\n}\n$f = implode($e);\nif(count($d) < $f)\n{\n     $g = $f - count($d);\n     for($x = 1; $x <= $g; $x++)\n     {\n          array_push($d, 0);\n     }\n     $h = array_merge($b, $d);\n     $i = count($h);\n     for($x = 0; $x < $i; $x++)\n     {\n          if($h[$x] == 0)\n          {\n               unset($h[$x]);\n          }\n          else\n          {\n               break;\n          }\n     }\n     print implode($h);\n}\nelseif(count($d) == $f)\n{\n     $g = array_merge($b, $d);\n     $h = count($g);\n     for($x = 0; $x < $h; $x++)\n     {\n          if($g[$x] == 0)\n          {\n               unset($g[$x]);\n          }\n          else\n          {\n               break;\n          }\n     }\n     print implode($g);\n}\nelseif(count($d) > $f)\n{\n     $g = array_slice($d, 0, $f);\n     $h = array_slice($d, $f);\n     $i = array_merge($b, $g);\n     $h2 = array_unique($h);\n     sort($h2);\n     if((count($h2) == 1) && ($h2[0] == 0))\n     {\n          $j = $i;\n          if(count($j) == 1)\n          {\n               print implode($j);\n          }\n          else\n          {\n               $k = count($j);\n               for($x = 0; $x < $k; $x++)\n               {\n                    if($j[$x] == 0)\n                    {\n                         unset($j[$x]);\n                    }\n                    else\n                    {\n                         break;\n                    }\n               }\n               print implode($j);\n          }\n     }\n     else\n     {\n          array_push($i, \".\");\n          $j = array_merge($i, $h);\n          if($j[1] == \".\")\n          {\n               print implode($j);\n          }\n          else\n          {\n               $k = count($j);\n               for($x = 0; $x < $k; $x++)\n               {\n                    if($j[$x] == 0)\n                    {\n                         unset($j[$x]);\n                    }\n                    else\n                    {\n                         break;\n                    }\n               }\n               print implode($j);\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "strings", "implementation"], "code_uid": "7ee0e53f87ae63787a409c137a20a5dd", "src_uid": "a79358099f08f3ec50c013d47d910eef", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = trim(fgets(STDIN));\n$d = 0;\n$e = 0;\nwhile($c >= 0)\n{\n     if(($c <= $a) && ($d <= $b))\n     {\n          $e++;\n     }\n     $c--;\n     $d++;\n}\nprint $e;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math"], "code_uid": "417fb4abc3a6845fe98164d98a4fce93", "src_uid": "9266a69e767df299569986151852e7b1", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = str_split(trim(fgets(STDIN)));\nunset($a[2]);\n$a = implode(\"\", $a);\n$b = array();\narray_unshift($b, \" \");\nunset($b[0]);\nfor($x = 0; $x <= 23; $x++)\n{\n    for($y = 0; $y <= 59; $y++)\n    {\n        if(strlen($x) == 1)\n        {\n            $c = \"0\" . $x;\n        }\n        else\n        {\n            $c = $x;\n        }\n        if(strlen($y) == 1)\n        {\n            $d = \"0\" . $y;\n        }\n        else\n        {\n            $d = $y;\n        }\n        $e = $c . $d;\n        array_push($b, $e);\n    }\n}\narray_push($b, \"0000\");\n$f = array_search($a, $b);\nfor($x = $f + 1; $x <= count($b); $x++)\n{\n    if(($b[$x][0] == $b[$x][3]) && ($b[$x][1] == $b[$x][2]))\n    {\n        print $b[$x][0] . $b[$x][1] . \":\" . $b[$x][2] . $b[$x][3];\n        break;\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "48d5ea94607596f2e4a061bfadfd00fa", "src_uid": "158eae916daa3e0162d4eac0426fa87f", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n// define('DEBUG', true);\ndefine('DEBUG', false);\n\nini_set('error_reporting', E_ALL & ~E_NOTICE);\n\nfscanf(STDIN, \"%d %d\", $n, $k);\nfscanf(STDIN, \"%s\", $s);\n\n$array = array();\n$prev = null;\n$string = \"\";\n$bool = false;\n\nfor ($i = 0; $i < strlen($s); $i++) {\n\t$cd = ord($s[$i]) - 96;\n\t$array[$cd] = 1;\n}\nksort($array);\n\nif (DEBUG) {\n\tvar_dump($array);\n}\n\nforeach ($array as $key => $val) {\n\tif (DEBUG) {\n\t\techo $prev + 1 . \"-\" . $key . \"\\n\";\n\t}\n\n\tif (is_null($prev) || $prev + 1 < $key) {\n\t\t$prev = $key;\n\t\t$answer += $key;\n\t\t$string .= chr($key + 96);\n\t\tif (strlen($string) === $k) {\n\t\t\t$bool = true;\n\t\t\tbreak;\n\t\t}\n\t}\n\tif (DEBUG) {\n\t\techo $string . PHP_EOL;\n\t}\n\n}\n\nif ($bool === false) {\n\techo \"-1\";\n} else {\n\tif (DEBUG) {\n\t\techo $string . PHP_EOL;\n\t}\n\n\techo $answer;\n}\n", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "98d3ab5b464e63179fa3f0330687a78d", "src_uid": "56b13d313afef9dc6c6ba2758b5ea313", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $a= explode(' ',trim(fgets(STDIN)));\n    \n    if(intval($a[2]/2) == ($a[2]/2))\n    {\n        $d = $a[2]/2;\n    }\n    else\n    {\n        $d = intval($a[2]/2) + 1;\n    }\n    \n    if(intval($d / $a[1]) == ($d / $a[1]))\n    {\n        $r = $d / $a[1];\n    }\n    else\n    {\n        $r = intval($d / $a[1]) + 1;\n    }\n    \n    if(intval($a[2]/2) == $a[2]/2)\n    {\n        $s = 'R';\n    }\n    else\n    {\n        $s = 'L';\n    }\n    $t = $d - (($r - 1) * $a[1]);\n    print $r.' '.$t.' '.$s;\n?>", "lang_cluster": "PHP", "tags": ["math", "implementation"], "code_uid": "3ebd2552dac96ee5f466a265b9612a4f", "src_uid": "d6929926b44c2d5b1a8e6b7f965ca1bb", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = str_split(trim(fgets(STDIN)));\narray_push($a, \"B\");\n$b = 0;\n$c = 1;\nfor($x = 0; $x < count($a); $x++)\n{\n    if($a[$x] == $a[$x + 1])\n    {\n        $c++;\n    }\n    else\n    {\n        $d = $c % 2;\n        if($d == 0)\n        {\n            $b++;\n        }\n        $c = 1;\n    }\n}\nprint $b;\n?>", "lang_cluster": "PHP", "tags": ["two pointers", "implementation"], "code_uid": "06c061c75755b427a8b5d1129e6bf8b7", "src_uid": "8b26ca1ca2b28166c3d25dceb1f3d49f", "difficulty": null, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array(1 => 1, 2 => 1, 3 => 0);\n$c = 0;\nfor($x = 1; $x <= $a; $x++)\n{\n     $d = trim(fgets(STDIN));\n     if($b[$d] == 1)\n     {\n          if($d == 1)\n          {\n               $b[1] = 1;\n               if($b[2] == 0)\n               {\n                    $b[2] = 1;\n               }\n               elseif($b[2] == 1)\n               {\n                    $b[2] = 0;\n               }\n               if($b[3] == 0)\n               {\n                    $b[3] = 1;\n               }\n               elseif($b[3] == 1)\n               {\n                    $b[3] = 0;\n               }\n          }\n          elseif($d == 2)\n          {\n               $b[2] = 1;\n               if($b[1] == 0)\n               {\n                    $b[1] = 1;\n               }\n               elseif($b[1] == 1)\n               {\n                    $b[1] = 0;\n               }\n               if($b[3] == 0)\n               {\n                    $b[3] = 1;\n               }\n               elseif($b[3] == 1)\n               {\n                    $b[3] = 0;\n               }\n          }\n          elseif($d == 3)\n          {\n               $b[3] = 1;\n               if($b[1] == 0)\n               {\n                    $b[1] = 1;\n               }\n               elseif($b[1] == 1)\n               {\n                    $b[1] = 0;\n               }\n               if($b[2] == 0)\n               {\n                    $b[2] = 1;\n               }\n               elseif($b[2] == 1)\n               {\n                    $b[2] = 0;\n               }\n          }\n     }\n     else\n     {\n          $c = 1;\n          break;\n     }\n}\nif($c == 0)\n{\n     print \"YES\";\n}\nelse\n{\n     print \"NO\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "e3d6cc547403464959f461d2ae6d8232", "src_uid": "6c7ab07abdf157c24be92f49fd1d8d87", "difficulty": 900.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\n$e = explode(\" \", trim(fgets(STDIN)));\n$j = $e;\nsort($j);\narray_unshift($e, \" \");\nunset($e[0]);\n$f = array_search($c, $e);\n$g = array_search($d, $e);\n$h = $a - $b;\n$i = 0;\nif($f == TRUE)\n{\n    $i++;\n}\nif($g == TRUE)\n{\n    $i++;\n}\n$i += $h;\nif(($i >= 2) && ($j[0] >= $c) && ($j[count($j) - 1] <= $d))\n{\n    print \"Correct\";\n}\nelse\n{\n    print \"Incorrect\";\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "c75ccca36ffc7d1cfd6ee2df61aac07e", "src_uid": "99f9cdc85010bd89434f39b78f15b65e", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif($a == 1)\n{\n     $b = explode(\" \", trim(fgets(STDIN)));\n     $c = array();\n     for($x = 0; $x < 6; $x++)\n     {\n          $c[$b[$x]] = TRUE;\n     }\n     $d = 0;\n     while(TRUE)\n     {\n          $e = $d;\n          $e++;\n          if($c[$e] == TRUE)\n          {\n               $d = $e;\n          }\n          else\n          {\n               break;\n          }\n     }\n     print $d;\n}\nelseif($a == 2)\n{\n     $b = explode(\" \", trim(fgets(STDIN)));\n     $c = explode(\" \", trim(fgets(STDIN)));\n     $d = array();\n     for($x = 0; $x < 6; $x++)\n     {\n          $d[$b[$x]] = TRUE;\n          $d[$c[$x]] = TRUE;\n     }\n     for($x = 0; $x < 6; $x++)\n     {\n          for($y = 0; $y < 6; $y++)\n          {\n               $e = $b[$x] . $c[$y];\n               $f = $c[$y] . $b[$x];\n               $d[$e] = TRUE;\n               $d[$f] = TRUE;\n          }\n     }\n     $g = 0;\n     while(TRUE)\n     {\n          $h = $g;\n          $h++;\n          if($d[$h] == TRUE)\n          {\n               $g = $h;\n          }\n          else\n          {\n               break;\n          }\n     }\n     print $g;\n}\nelseif($a == 3)\n{\n     $b = explode(\" \", trim(fgets(STDIN)));\n     $c = explode(\" \", trim(fgets(STDIN)));\n     $d = explode(\" \", trim(fgets(STDIN)));\n     $e = array();\n     for($x = 0; $x < 6; $x++)\n     {\n          $e[$b[$x]] = TRUE;\n          $e[$c[$x]] = TRUE;\n          $e[$d[$x]] = TRUE;\n     }\n     for($x = 0; $x < 6; $x++)\n     {\n          for($y = 0; $y < 6; $y++)\n          {\n               $f = $b[$x] . $c[$y];\n               $g = $c[$y] . $b[$x];\n               $e[$f] = TRUE;\n               $e[$g] = TRUE;\n          }\n     }\n     for($x = 0; $x < 6; $x++)\n     {\n          for($y = 0; $y < 6; $y++)\n          {\n               $f = $b[$x] . $d[$y];\n               $g = $d[$y] . $b[$x];\n               $e[$f] = TRUE;\n               $e[$g] = TRUE;\n          }\n     }\n     for($x = 0; $x < 6; $x++)\n     {\n          for($y = 0; $y < 6; $y++)\n          {\n               $f = $c[$x] . $d[$y];\n               $g = $d[$y] . $c[$x];\n               $e[$f] = TRUE;\n               $e[$g] = TRUE;\n          }\n     }\n     for($x = 0; $x < 6; $x++)\n     {\n          for($y = 0; $y < 6; $y++)\n          {\n               for($z = 0; $z < 6; $z++)\n               {\n                    $h = $b[$x] . $c[$y] . $d[$z];\n                    $i = $b[$x] . $d[$z] . $c[$y];\n                    $j = $c[$x] . $b[$y] . $d[$z];\n                    $k = $c[$x] . $d[$z] . $b[$y];\n                    $l = $d[$x] . $c[$y] . $d[$z];\n                    $m = $d[$x] . $d[$z] . $c[$y];\n                    $e[$h] = TRUE;\n                    $e[$i] = TRUE;\n                    $e[$j] = TRUE;\n                    $e[$k] = TRUE;\n                    $e[$l] = TRUE;\n                    $e[$m] = TRUE;\n               }\n          }\n     }\n     $n = 0;\n     while(TRUE)\n     {\n          $o = $n;\n          $o++;\n          if($e[$o] == TRUE)\n          {\n               $n = $o;\n          }\n          else\n          {\n               break;\n          }\n     }\n     print $n;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "edd842506e3fad641b3ef677646175bf", "src_uid": "20aa53bffdfd47b4e853091ee6b11a4b", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = array();\nif(strlen($a) == 1)\n{\n     $c = sqrt($a);\n     $d = intval($c);\n     if($c == $d)\n     {\n          print \"0\";\n     }\n     else\n     {\n          print \"-1\";\n     }\n}\nelseif(strlen($a) == 2)\n{\n     $c = sqrt($a);\n     $d = intval($c);\n     if($c == $d)\n     {\n          print \"0\";\n     }\n     else\n     {\n          for($e = 0; $e < 2; $e++)\n          {\n               $f = sqrt($a[$e]);\n               $g = intval($f);\n               if(($f == $g) && ($f != 0))\n               {\n                    $b[count($b)] = 1;\n               }\n          }\n          if(count($b) == 0)\n          {\n               print \"-1\";\n          }\n          else\n          {\n               print min($b);\n          }\n     }\n}\nelseif(strlen($a) == 3)\n{\n     $c = sqrt($a);\n     $d = intval($c);\n     if($c == $d)\n     {\n          print \"0\";\n     }\n     else\n     {\n          for($e = 0; $e < 3; $e++)\n          {\n               $f = sqrt($a[$e]);\n               $g = intval($f);\n               if(($f == $g) && ($f != 0))\n               {\n                    $b[count($b)] = 2;\n               }\n          }\n          for($e = 0; $e < 2; $e++)\n          {\n               for($f = $e + 1; $f < 3; $f++)\n               {\n                    $g = $a[$e] . $a[$f];\n                    $h = sqrt($g);\n                    $i = intval($h);\n                    if(($h == $i) && (strlen(intval($g)) == 2))\n                    {\n                         $b[count($b)] = 1;\n                    }\n               }\n          }\n          if(count($b) == 0)\n          {\n               print \"-1\";\n          }\n          else\n          {\n               print min($b);\n          }\n     }\n}\nelseif(strlen($a) == 4)\n{\n     $c = sqrt($a);\n     $d = intval($c);\n     if($c == $d)\n     {\n          print \"0\";\n     }\n     else\n     {\n          for($e = 0; $e < 4; $e++)\n          {\n               $f = sqrt($a[$e]);\n               $g = intval($f);\n               if(($f == $g) && ($f != 0))\n               {\n                    $b[count($b)] = 3;\n               }\n          }\n          for($e = 0; $e < 3; $e++)\n          {\n               for($f = $e + 1; $f < 4; $f++)\n               {\n                    $g = $a[$e] . $a[$f];\n                    $h = sqrt($g);\n                    $i = intval($h);\n                    if(($h == $i) && (strlen(intval($g)) == 2))\n                    {\n                         $b[count($b)] = 2;\n                    }\n               }\n          }\n          for($e = 0; $e < 2; $e++)\n          {\n               for($f = $e + 1; $f < 3; $f++)\n               {\n                    for($j = $f + 1; $j < 4; $j++)\n                    {\n                         $g = $a[$e] . $a[$f] . $a[$j];\n                         $h = sqrt($g);\n                         $i = intval($h);\n                         if(($h == $i) && (strlen(intval($g)) == 3))\n                         {\n                              $b[count($b)] = 1;\n                         }\n                    }\n               }\n          }\n          if(count($b) == 0)\n          {\n               print \"-1\";\n          }\n          else\n          {\n               print min($b);\n          }\n     }\n}\nelseif(strlen($a) == 5)\n{\n     $c = sqrt($a);\n     $d = intval($c);\n     if($c == $d)\n     {\n          print \"0\";\n     }\n     else\n     {\n          for($e = 0; $e < 5; $e++)\n          {\n               $f = sqrt($a[$e]);\n               $g = intval($f);\n               if(($f == $g) && ($f != 0))\n               {\n                    $b[count($b)] = 4;\n               }\n          }\n          for($e = 0; $e < 4; $e++)\n          {\n               for($f = $e + 1; $f < 5; $f++)\n               {\n                    $g = $a[$e] . $a[$f];\n                    $h = sqrt($g);\n                    $i = intval($h);\n                    if(($h == $i) && (strlen(intval($g)) == 2))\n                    {\n                         $b[count($b)] = 3;\n                    }\n               }\n          }\n          for($e = 0; $e < 3; $e++)\n          {\n               for($f = $e + 1; $f < 4; $f++)\n               {\n                    for($j = $f + 1; $j < 5; $j++)\n                    {\n                         $g = $a[$e] . $a[$f] . $a[$j];\n                         $h = sqrt($g);\n                         $i = intval($h);\n                         if(($h == $i) && (strlen(intval($g)) == 3))\n                         {\n                              $b[count($b)] = 2;\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 2; $e++)\n          {\n               for($f = $e + 1; $f < 3; $f++)\n               {\n                    for($j = $f + 1; $j < 4; $j++)\n                    {\n                         for($k = $j + 1; $k < 5; $k++)\n                         {\n                              $g = $a[$e] . $a[$f] . $a[$j] . $a[$k];\n                              $h = sqrt($g);\n                              $i = intval($h);\n                              if(($h == $i) && (strlen(intval($g)) == 4))\n                              {\n                                   $b[count($b)] = 1;\n                              }\n                         }\n                    }\n               }\n          }\n          if(count($b) == 0)\n          {\n               print \"-1\";\n          }\n          else\n          {\n               print min($b);\n          }\n     }\n}\nelseif(strlen($a) == 6)\n{\n     $c = sqrt($a);\n     $d = intval($c);\n     if($c == $d)\n     {\n          print \"0\";\n     }\n     else\n     {\n          for($e = 0; $e < 6; $e++)\n          {\n               $f = sqrt($a[$e]);\n               $g = intval($f);\n               if(($f == $g) && ($f != 0))\n               {\n                    $b[count($b)] = 5;\n               }\n          }\n          for($e = 0; $e < 5; $e++)\n          {\n               for($f = $e + 1; $f < 6; $f++)\n               {\n                    $g = $a[$e] . $a[$f];\n                    $h = sqrt($g);\n                    $i = intval($h);\n                    if(($h == $i) && (strlen(intval($g)) == 2))\n                    {\n                         $b[count($b)] = 4;\n                    }\n               }\n          }\n          for($e = 0; $e < 4; $e++)\n          {\n               for($f = $e + 1; $f < 5; $f++)\n               {\n                    for($j = $f + 1; $j < 6; $j++)\n                    {\n                         $g = $a[$e] . $a[$f] . $a[$j];\n                         $h = sqrt($g);\n                         $i = intval($h);\n                         if(($h == $i) && (strlen(intval($g)) == 3))\n                         {\n                              $b[count($b)] = 3;\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 3; $e++)\n          {\n               for($f = $e + 1; $f < 4; $f++)\n               {\n                    for($j = $f + 1; $j < 5; $j++)\n                    {\n                         for($k = $j + 1; $k < 6; $k++)\n                         {\n                              $g = $a[$e] . $a[$f] . $a[$j] . $a[$k];\n                              $h = sqrt($g);\n                              $i = intval($h);\n                              if(($h == $i) && (strlen(intval($g)) == 4))\n                              {\n                                   $b[count($b)] = 2;\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 2; $e++)\n          {\n               for($f = $e + 1; $f < 3; $f++)\n               {\n                    for($j = $f + 1; $j < 4; $j++)\n                    {\n                         for($k = $j + 1; $k < 5; $k++)\n                         {\n                              for($l = $k + 1; $l < 6; $l++)\n                              {\n                                   $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l];\n                                   $h = sqrt($g);\n                                   $i = intval($h);\n                                   if(($h == $i) && (strlen(intval($g)) == 5))\n                                   {\n                                        $b[count($b)] = 1;\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          if(count($b) == 0)\n          {\n               print \"-1\";\n          }\n          else\n          {\n               print min($b);\n          }\n     }\n}\nelseif(strlen($a) == 7)\n{\n     $c = sqrt($a);\n     $d = intval($c);\n     if($c == $d)\n     {\n          print \"0\";\n     }\n     else\n     {\n          for($e = 0; $e < 7; $e++)\n          {\n               $f = sqrt($a[$e]);\n               $g = intval($f);\n               if(($f == $g) && ($f != 0))\n               {\n                    $b[count($b)] = 6;\n               }\n          }\n          for($e = 0; $e < 6; $e++)\n          {\n               for($f = $e + 1; $f < 7; $f++)\n               {\n                    $g = $a[$e] . $a[$f];\n                    $h = sqrt($g);\n                    $i = intval($h);\n                    if(($h == $i) && (strlen(intval($g)) == 2))\n                    {\n                         $b[count($b)] = 5;\n                    }\n               }\n          }\n          for($e = 0; $e < 5; $e++)\n          {\n               for($f = $e + 1; $f < 6; $f++)\n               {\n                    for($j = $f + 1; $j < 7; $j++)\n                    {\n                         $g = $a[$e] . $a[$f] . $a[$j];\n                         $h = sqrt($g);\n                         $i = intval($h);\n                         if(($h == $i) && (strlen(intval($g)) == 3))\n                         {\n                              $b[count($b)] = 4;\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 4; $e++)\n          {\n               for($f = $e + 1; $f < 5; $f++)\n               {\n                    for($j = $f + 1; $j < 6; $j++)\n                    {\n                         for($k = $j + 1; $k < 7; $k++)\n                         {\n                              $g = $a[$e] . $a[$f] . $a[$j] . $a[$k];\n                              $h = sqrt($g);\n                              $i = intval($h);\n                              if(($h == $i) && (strlen(intval($g)) == 4))\n                              {\n                                   $b[count($b)] = 3;\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 3; $e++)\n          {\n               for($f = $e + 1; $f < 4; $f++)\n               {\n                    for($j = $f + 1; $j < 5; $j++)\n                    {\n                         for($k = $j + 1; $k < 6; $k++)\n                         {\n                              for($l = $k + 1; $l < 7; $l++)\n                              {\n                                   $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l];\n                                   $h = sqrt($g);\n                                   $i = intval($h);\n                                   if(($h == $i) && (strlen(intval($g)) == 5))\n                                   {\n                                        $b[count($b)] = 2;\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 2; $e++)\n          {\n               for($f = $e + 1; $f < 3; $f++)\n               {\n                    for($j = $f + 1; $j < 4; $j++)\n                    {\n                         for($k = $j + 1; $k < 5; $k++)\n                         {\n                              for($l = $k + 1; $l < 6; $l++)\n                              {\n                                   for($m = $l + 1; $m < 7; $m++)\n                                   {\n                                        $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l] . $a[$m];\n                                        $h = sqrt($g);\n                                        $i = intval($h);\n                                        if(($h == $i) && (strlen(intval($g)) == 6))\n                                        {\n                                             $b[count($b)] = 1;\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          if(count($b) == 0)\n          {\n               print \"-1\";\n          }\n          else\n          {\n               print min($b);\n          }\n     }\n}\nelseif(strlen($a) == 8)\n{\n     $c = sqrt($a);\n     $d = intval($c);\n     if($c == $d)\n     {\n          print \"0\";\n     }\n     else\n     {\n          for($e = 0; $e < 8; $e++)\n          {\n               $f = sqrt($a[$e]);\n               $g = intval($f);\n               if(($f == $g) && ($f != 0))\n               {\n                    $b[count($b)] = 7;\n               }\n          }\n          for($e = 0; $e < 7; $e++)\n          {\n               for($f = $e + 1; $f < 8; $f++)\n               {\n                    $g = $a[$e] . $a[$f];\n                    $h = sqrt($g);\n                    $i = intval($h);\n                    if(($h == $i) && (strlen(intval($g)) == 2))\n                    {\n                         $b[count($b)] = 6;\n                    }\n               }\n          }\n          for($e = 0; $e < 6; $e++)\n          {\n               for($f = $e + 1; $f < 7; $f++)\n               {\n                    for($j = $f + 1; $j < 8; $j++)\n                    {\n                         $g = $a[$e] . $a[$f] . $a[$j];\n                         $h = sqrt($g);\n                         $i = intval($h);\n                         if(($h == $i) && (strlen(intval($g)) == 3))\n                         {\n                              $b[count($b)] = 5;\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 5; $e++)\n          {\n               for($f = $e + 1; $f < 6; $f++)\n               {\n                    for($j = $f + 1; $j < 7; $j++)\n                    {\n                         for($k = $j + 1; $k < 8; $k++)\n                         {\n                              $g = $a[$e] . $a[$f] . $a[$j] . $a[$k];\n                              $h = sqrt($g);\n                              $i = intval($h);\n                              if(($h == $i) && (strlen(intval($g)) == 4))\n                              {\n                                   $b[count($b)] = 4;\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 4; $e++)\n          {\n               for($f = $e + 1; $f < 5; $f++)\n               {\n                    for($j = $f + 1; $j < 6; $j++)\n                    {\n                         for($k = $j + 1; $k < 7; $k++)\n                         {\n                              for($l = $k + 1; $l < 8; $l++)\n                              {\n                                   $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l];\n                                   $h = sqrt($g);\n                                   $i = intval($h);\n                                   if(($h == $i) && (strlen(intval($g)) == 5))\n                                   {\n                                        $b[count($b)] = 3;\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 3; $e++)\n          {\n               for($f = $e + 1; $f < 4; $f++)\n               {\n                    for($j = $f + 1; $j < 5; $j++)\n                    {\n                         for($k = $j + 1; $k < 6; $k++)\n                         {\n                              for($l = $k + 1; $l < 7; $l++)\n                              {\n                                   for($m = $l + 1; $m < 8; $m++)\n                                   {\n                                        $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l] . $a[$m];\n                                        $h = sqrt($g);\n                                        $i = intval($h);\n                                        if(($h == $i) && (strlen(intval($g)) == 6))\n                                        {\n                                             $b[count($b)] = 2;\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 2; $e++)\n          {\n               for($f = $e + 1; $f < 3; $f++)\n               {\n                    for($j = $f + 1; $j < 4; $j++)\n                    {\n                         for($k = $j + 1; $k < 5; $k++)\n                         {\n                              for($l = $k + 1; $l < 6; $l++)\n                              {\n                                   for($m = $l + 1; $m < 7; $m++)\n                                   {\n                                        for($n = $m + 1; $n < 8; $n++)\n                                        {\n                                             $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l] . $a[$m] . $a[$n];\n                                             $h = sqrt($g);\n                                             $i = intval($h);\n                                             if(($h == $i) && (strlen(intval($g)) == 7))\n                                             {\n                                                  $b[count($b)] = 1;\n                                             }\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          if(count($b) == 0)\n          {\n               print \"-1\";\n          }\n          else\n          {\n               print min($b);\n          }\n     }\n}\nelseif(strlen($a) == 9)\n{\n     $c = sqrt($a);\n     $d = intval($c);\n     if($c == $d)\n     {\n          print \"0\";\n     }\n     else\n     {\n          for($e = 0; $e < 9; $e++)\n          {\n               $f = sqrt($a[$e]);\n               $g = intval($f);\n               if(($f == $g) && ($f != 0))\n               {\n                    $b[count($b)] = 8;\n               }\n          }\n          for($e = 0; $e < 8; $e++)\n          {\n               for($f = $e + 1; $f < 9; $f++)\n               {\n                    $g = $a[$e] . $a[$f];\n                    $h = sqrt($g);\n                    $i = intval($h);\n                    if(($h == $i) && (strlen(intval($g)) == 2))\n                    {\n                         $b[count($b)] = 7;\n                    }\n               }\n          }\n          for($e = 0; $e < 7; $e++)\n          {\n               for($f = $e + 1; $f < 8; $f++)\n               {\n                    for($j = $f + 1; $j < 9; $j++)\n                    {\n                         $g = $a[$e] . $a[$f] . $a[$j];\n                         $h = sqrt($g);\n                         $i = intval($h);\n                         if(($h == $i) && (strlen(intval($g)) == 3))\n                         {\n                              $b[count($b)] = 6;\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 6; $e++)\n          {\n               for($f = $e + 1; $f < 7; $f++)\n               {\n                    for($j = $f + 1; $j < 8; $j++)\n                    {\n                         for($k = $j + 1; $k < 9; $k++)\n                         {\n                              $g = $a[$e] . $a[$f] . $a[$j] . $a[$k];\n                              $h = sqrt($g);\n                              $i = intval($h);\n                              if(($h == $i) && (strlen(intval($g)) == 4))\n                              {\n                                   $b[count($b)] = 5;\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 5; $e++)\n          {\n               for($f = $e + 1; $f < 6; $f++)\n               {\n                    for($j = $f + 1; $j < 7; $j++)\n                    {\n                         for($k = $j + 1; $k < 8; $k++)\n                         {\n                              for($l = $k + 1; $l < 9; $l++)\n                              {\n                                   $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l];\n                                   $h = sqrt($g);\n                                   $i = intval($h);\n                                   if(($h == $i) && (strlen(intval($g)) == 5))\n                                   {\n                                        $b[count($b)] = 4;\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 4; $e++)\n          {\n               for($f = $e + 1; $f < 5; $f++)\n               {\n                    for($j = $f + 1; $j < 6; $j++)\n                    {\n                         for($k = $j + 1; $k < 7; $k++)\n                         {\n                              for($l = $k + 1; $l < 8; $l++)\n                              {\n                                   for($m = $l + 1; $m < 9; $m++)\n                                   {\n                                        $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l] . $a[$m];\n                                        $h = sqrt($g);\n                                        $i = intval($h);\n                                        if(($h == $i) && (strlen(intval($g)) == 6))\n                                        {\n                                             $b[count($b)] = 3;\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 3; $e++)\n          {\n               for($f = $e + 1; $f < 4; $f++)\n               {\n                    for($j = $f + 1; $j < 5; $j++)\n                    {\n                         for($k = $j + 1; $k < 6; $k++)\n                         {\n                              for($l = $k + 1; $l < 7; $l++)\n                              {\n                                   for($m = $l + 1; $m < 8; $m++)\n                                   {\n                                        for($n = $m + 1; $n < 9; $n++)\n                                        {\n                                             $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l] . $a[$m] . $a[$n];\n                                             $h = sqrt($g);\n                                             $i = intval($h);\n                                             if(($h == $i) && (strlen(intval($g)) == 7))\n                                             {\n                                                  $b[count($b)] = 2;\n                                             }\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 2; $e++)\n          {\n               for($f = $e + 1; $f < 3; $f++)\n               {\n                    for($j = $f + 1; $j < 4; $j++)\n                    {\n                         for($k = $j + 1; $k < 5; $k++)\n                         {\n                              for($l = $k + 1; $l < 6; $l++)\n                              {\n                                   for($m = $l + 1; $m < 7; $m++)\n                                   {\n                                        for($n = $m + 1; $n < 8; $n++)\n                                        {\n                                             for($o = $n + 1; $o < 9; $o++)\n                                             {\n                                                  $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l] . $a[$m] . $a[$n] . $a[$o];\n                                                  $h = sqrt($g);\n                                                  $i = intval($h);\n                                                  if(($h == $i) && (strlen(intval($g)) == 8))\n                                                  {\n                                                       $b[count($b)] = 1;\n                                                  }\n                                             }\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          if(count($b) == 0)\n          {\n               print \"-1\";\n          }\n          else\n          {\n               print min($b);\n          }\n     }\n}\nelseif(strlen($a) == 10)\n{\n     $c = sqrt($a);\n     $d = intval($c);\n     if($c == $d)\n     {\n          print \"0\";\n     }\n     else\n     {\n          for($e = 0; $e < 10; $e++)\n          {\n               $f = sqrt($a[$e]);\n               $g = intval($f);\n               if(($f == $g) && ($f != 0))\n               {\n                    $b[count($b)] = 9;\n               }\n          }\n          for($e = 0; $e < 9; $e++)\n          {\n               for($f = $e + 1; $f < 10; $f++)\n               {\n                    $g = $a[$e] . $a[$f];\n                    $h = sqrt($g);\n                    $i = intval($h);\n                    if(($h == $i) && (strlen(intval($g)) == 2))\n                    {\n                         $b[count($b)] = 8;\n                    }\n               }\n          }\n          for($e = 0; $e < 8; $e++)\n          {\n               for($f = $e + 1; $f < 9; $f++)\n               {\n                    for($j = $f + 1; $j < 10; $j++)\n                    {\n                         $g = $a[$e] . $a[$f] . $a[$j];\n                         $h = sqrt($g);\n                         $i = intval($h);\n                         if(($h == $i) && (strlen(intval($g)) == 3))\n                         {\n                              $b[count($b)] = 7;\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 7; $e++)\n          {\n               for($f = $e + 1; $f < 8; $f++)\n               {\n                    for($j = $f + 1; $j < 9; $j++)\n                    {\n                         for($k = $j + 1; $k < 10; $k++)\n                         {\n                              $g = $a[$e] . $a[$f] . $a[$j] . $a[$k];\n                              $h = sqrt($g);\n                              $i = intval($h);\n                              if(($h == $i) && (strlen(intval($g)) == 4))\n                              {\n                                   $b[count($b)] = 6;\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 6; $e++)\n          {\n               for($f = $e + 1; $f < 7; $f++)\n               {\n                    for($j = $f + 1; $j < 8; $j++)\n                    {\n                         for($k = $j + 1; $k < 9; $k++)\n                         {\n                              for($l = $k + 1; $l < 10; $l++)\n                              {\n                                   $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l];\n                                   $h = sqrt($g);\n                                   $i = intval($h);\n                                   if(($h == $i) && (strlen(intval($g)) == 5))\n                                   {\n                                        $b[count($b)] = 5;\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 5; $e++)\n          {\n               for($f = $e + 1; $f < 6; $f++)\n               {\n                    for($j = $f + 1; $j < 7; $j++)\n                    {\n                         for($k = $j + 1; $k < 8; $k++)\n                         {\n                              for($l = $k + 1; $l < 9; $l++)\n                              {\n                                   for($m = $l + 1; $m < 10; $m++)\n                                   {\n                                        $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l] . $a[$m];\n                                        $h = sqrt($g);\n                                        $i = intval($h);\n                                        if(($h == $i) && (strlen(intval($g)) == 6))\n                                        {\n                                             $b[count($b)] = 4;\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 4; $e++)\n          {\n               for($f = $e + 1; $f < 5; $f++)\n               {\n                    for($j = $f + 1; $j < 6; $j++)\n                    {\n                         for($k = $j + 1; $k < 7; $k++)\n                         {\n                              for($l = $k + 1; $l < 8; $l++)\n                              {\n                                   for($m = $l + 1; $m < 9; $m++)\n                                   {\n                                        for($n = $m + 1; $n < 10; $n++)\n                                        {\n                                             $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l] . $a[$m] . $a[$n];\n                                             $h = sqrt($g);\n                                             $i = intval($h);\n                                             if(($h == $i) && (strlen(intval($g)) == 7))\n                                             {\n                                                  $b[count($b)] = 3;\n                                             }\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 3; $e++)\n          {\n               for($f = $e + 1; $f < 4; $f++)\n               {\n                    for($j = $f + 1; $j < 5; $j++)\n                    {\n                         for($k = $j + 1; $k < 6; $k++)\n                         {\n                              for($l = $k + 1; $l < 7; $l++)\n                              {\n                                   for($m = $l + 1; $m < 8; $m++)\n                                   {\n                                        for($n = $m + 1; $n < 9; $n++)\n                                        {\n                                             for($o = $n + 1; $o < 10; $o++)\n                                             {\n                                                  $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l] . $a[$m] . $a[$n] . $a[$o];\n                                                  $h = sqrt($g);\n                                                  $i = intval($h);\n                                                  if(($h == $i) && (strlen(intval($g)) == 8))\n                                                  {\n                                                       $b[count($b)] = 2;\n                                                  }\n                                             }\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          for($e = 0; $e < 2; $e++)\n          {\n               for($f = $e + 1; $f < 3; $f++)\n               {\n                    for($j = $f + 1; $j < 4; $j++)\n                    {\n                         for($k = $j + 1; $k < 5; $k++)\n                         {\n                              for($l = $k + 1; $l < 6; $l++)\n                              {\n                                   for($m = $l + 1; $m < 7; $m++)\n                                   {\n                                        for($n = $m + 1; $n < 8; $n++)\n                                        {\n                                             for($o = $n + 1; $o < 9; $o++)\n                                             {\n                                                  for($p = $o + 1; $p < 10; $p++)\n                                                  {\n                                                       $g = $a[$e] . $a[$f] . $a[$j] . $a[$k] . $a[$l] . $a[$m] . $a[$n] . $a[$o] . $a[$p];\n                                                       $h = sqrt($g);\n                                                       $i = intval($h);\n                                                       if(($h == $i) && (strlen(intval($g)) == 9))\n                                                       {\n                                                            $b[count($b)] = 1;\n                                                       }\n                                                  }\n                                             }\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n          if(count($b) == 0)\n          {\n               print \"-1\";\n          }\n          else\n          {\n               print min($b);\n          }\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "implementation"], "code_uid": "406178837c6d237aa7790497cd79aa31", "src_uid": "fa4b1de79708329bb85437e1413e13df", "difficulty": 1400.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\nif($a == 0)\n{\n    if(($d > $c) && ($d >= $b))\n    {\n        print \"Polycarp\";\n    }\n    elseif(($d > $c) && ($d < $b))\n    {\n        print \"Vasiliy\";\n    }\n    elseif(($d <= $c) && ($c >= $b))\n    {\n        print \"Polycarp\";\n    }\n    elseif(($d <= $c) && ($c < $b))\n    {\n        print \"Vasiliy\";\n    }\n}\nelseif($b == 0)\n{\n    if(($d > $c) && ($d >= $a))\n    {\n        print \"Polycarp\";\n    }\n    elseif(($d > $c) && ($d < $a))\n    {\n        print \"Vasiliy\";\n    }\n    elseif(($d <= $c) && ($c >= $a))\n    {\n        print \"Polycarp\";\n    }\n    elseif(($d <= $c) && ($c < $a))\n    {\n        print \"Vasiliy\";\n    }\n}\nelseif($c == 0)\n{\n    if(($a + $b) <= $d)\n    {\n        print \"Polycarp\";\n    }\n    else\n    {\n        print \"Vasiliy\";\n    }\n}\nelseif($d == 0)\n{\n    if(($a + $b) <= $c)\n    {\n        print \"Polycarp\";\n    }\n    else\n    {\n        print \"Vasiliy\";\n    }\n}\nelseif(($a <= $c) && ($b <= $d))\n{\n    print \"Polycarp\";\n}\nelseif(($a >= $c) && ($b >= $d))\n{\n    print \"Vasiliy\";\n}\nelse\n{\n    if(($d > $c) && ($d >= $a + $b))\n    {\n        print \"Polycarp\";\n    }\n    elseif(($d > $c) && ($d < $a + $b))\n    {\n        print \"Vasiliy\";\n    }\n    elseif(($d <= $c) && ($c >= $a + $b))\n    {\n        print \"Polycarp\";\n    }\n    elseif(($d <= $c) && ($c < $a + $b))\n    {\n        print \"Vasiliy\";\n    }\n}\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation", "games"], "code_uid": "5d0208c9d22f6dab097eddc344839cee", "src_uid": "2637d57f7809ff8f922549c617709074", "difficulty": 1700.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n/** chaotic_iak's solution in PHP 5.4 to the problem 322B (Round 190 Div 2 Problem B) in Codeforces **/\n\n/** Module for retrieving input **/\n\n// If this is a local test (a variable declared in a specialized page to open this script), open from localtest.txt instead of php://stdin (because I'm too lazy to supply the arguments by stdin)\nif (isset($localtest)) {$stdin = fopen(\"localtest.txt\", \"r\");} else {$stdin = fopen(\"php://stdin\", \"r\");}\n\n// A function to retrieve the next line. Takes one optional argument $single, which should be true if the next line (based on problem's specification) has only one number/string/whatever, so I don't have to do silly things like $raw = g(); $num = $raw[0];\nfunction g($single = false) {\n\n\t// Take the global $stdin variable aka the file handler so we can access it from this function\n\tglobal $stdin;\n\t\n\t// Take the input from the handler, trim it, and explode it based on space (\" 1 2 3 \" becomes array(\"1\", \"2\", \"3\")); trim is usually to remove trailing \\r\n\t$input = explode(\" \", trim(fgets($stdin)));\n\t\n\t// If the line is not a single number, return the whole array, otherwise simply return the single string that we exploded for nothing\n\tif (!$single) {return $input;} else {return $input[0];}\n}\n\n/** Imported functions from chaotic_iak's library **/\n// none\n\n/** chaotic_iak's solution **/\n// This is a competitive programming solution. The code is not remarked (because I want speed).\n\n$raw = g();\n$r = $raw[0];\n$g = $raw[1];\n$b = $raw[2];\n\n$min = ($r < $g) ? $r : $g;\n$min = ($min < $b) ? $min : $b;\n\n$r -= $min;\n$g -= $min;\n$b -= $min;\n$res = $min;\n$max = 0;\n\nfor ($i = 0; $i < 3; $i++) {\n\t$r += $i;\n\t$g += $i;\n\t$b += $i;\n\tif ($res >= $i) {$res += (($r - ($r % 3)) / 3) + (($g - ($g % 3)) / 3) + (($b - ($b % 3)) / 3) - $i;}\n\t$max = ($max < $res) ? $res : $max;\n\t$res = $min;\n\t$r -= $i;\n\t$g -= $i;\n\t$b -= $i;\n}\n\necho $max;", "lang_cluster": "PHP", "tags": ["math", "combinatorics"], "code_uid": "e7e042c957a99e72ad238000f3f5960d", "src_uid": "acddc9b0db312b363910a84bd4f14d8e", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e, $f) = explode(\" \", trim(fgets(STDIN)));\nif($a < $c)\n{\n     $a2 = $a;\n     $b2 = $b;\n     $c2 = $c;\n     $d2 = $d;\n     $e2 = $e;\n     $f2 = $f;\n     $a = $c2;\n     $c = $a2;\n     $d = $f2;\n     $f = $d2;\n}\n$g = $b + $b + 1;\n$h = array($g);\n$i = $a + $f;\nif($a == $c)\n{\n     $k = 0;\n}\nelse\n{\n     $k = 1;\n}\n$l = 0;\n$m = 0;\nfor($x = 1; $x < $i; $x++)\n{\n     $a--;\n     $c--;\n     if($a > 0)\n     {\n          if($c > 0)\n          {\n               $j = $h[count($h) - 1];\n               $h[count($h)] = $j + 2;\n          }\n          else\n          {\n               if($l == 0)\n               {\n                    $j = $h[count($h) - 1];\n                    $h[count($h)] = $j + 1;\n                    $l = 1;\n               }\n               elseif($l == 1)\n               {\n                    $j = $h[count($h) - 1];\n                    $h[count($h)] = $j;\n               }\n          }\n     }\n     else\n     {\n          if($c > 0)\n          {\n               $j = $h[count($h) - 1];\n               $h[count($h)] = $j + 1;\n          }\n          else\n          {\n               if($k == 0)\n               {\n                    $j = $h[count($h) - 1];\n                    $h[count($h)] = $j;\n                    $k = 1;\n                    $m = 1;\n               }\n               elseif($k == 1)\n               {\n                    if($m == 0)\n                    {\n                         $j = $h[count($h) - 1];\n                         $h[count($h)] = $j - 1;\n                         $m = 1;\n                    }\n                    else\n                    {\n                         $j = $h[count($h) - 1];\n                         $h[count($h)] = $j - 2;\n                    }\n               }\n          }\n     }\n}\nprint array_sum($h);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "geometry"], "code_uid": "fdfda89c8f63957a386c0db8bcb527b9", "src_uid": "382475475427f0e76c6b4ac6e7a02e21", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d, $e, $f) = explode(\" \", trim(fgets(STDIN)));\n$g = pow($a + $b + $c, 2) - pow($a, 2) - pow($c, 2) - pow($e, 2);\nprint $g;\n?>", "lang_cluster": "PHP", "tags": ["brute force", "math", "geometry"], "code_uid": "33a8174b078ab4c05054299e632e281f", "src_uid": "382475475427f0e76c6b4ac6e7a02e21", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = trim(fgets(STDIN));\n$c = 0;\n$d = 0;\nfor($x = 0; $x < $a; $x++)\n{\n     if($b[$x] == 8)\n     {\n          $c++;\n     }\n     else\n     {\n          $d++;\n     }\n}\n$e = 0;\nwhile(TRUE)\n{\n     if($c > 0)\n     {\n          if($d >= 10)\n          {\n               $c--;\n               $d -= 10;\n               $e++;\n          }\n          else\n          {\n               break;\n          }\n     }\n     else\n     {\n          break;\n     }\n}\nif($c > 0)\n{\n     $f = $c + $d;\n     $g = floor($f / 11);\n     $h = $e + $g;\n     print $h;\n}\nelse\n{\n     print $e;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "ad9731fd2d9c90f56255e23be327021b", "src_uid": "259d01b81bef5536b969247ff2c2d776", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif(strlen($a) == 1)\n{\n     print $a;\n}\nelse\n{\n     $b = strlen($a) - 1;\n     $c = implode(array_fill(0, $b, 9));\n     $d = $a - $c;\n     $e = str_split($d);\n     $f = $b * 9 + array_sum($e);\n     print $f;\n}\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "9aae5b9112dd6258859f282f61763db3", "src_uid": "5c61b4a4728070b9de49d72831cd2329", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nrsort($b);\n$c = array();\nfor($x = 0; $x < count($b) - 1; $x++)\n{\n     for($y = $x + 1; $y < count($b); $y++)\n     {\n          $b2 = $b;\n          unset($b2[$x]);\n          unset($b2[$y]);\n          rsort($b2);\n          $e = 0;\n          for($z = 0; $z < count($b2); $z++)\n          {\n               $d = $b2[$z] - $b2[$z + 1];\n               $e += $d;\n               $z++;\n          }\n          $c[count($c)] = $e;\n     }\n}\nprint min($c);\n?>", "lang_cluster": "PHP", "tags": ["brute force", "sortings", "greedy"], "code_uid": "5400e63e4c4735ab21e110b6142f6dac", "src_uid": "76659c0b7134416452585c391daadb16", "difficulty": 1500.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$e = $b;\n$f = 50;\n$j = 0;\nwhile(TRUE)\n{\n     if(($e < $c) || ($j == 1))\n     {\n          break;\n     }\n     else\n     {\n          $g = floor($e / 50);\n          $h = $g % 475;\n          for($x = 1; $x <= 25; $x++)\n          {\n               $h = ($h * 96 + 42) % 475;\n               $i = $h + 26;\n               if($a == $i)\n               {\n                    $j = 1;\n                    break;\n               }\n          }\n     }\n     $e -= $f;\n}\nif($j == 1)\n{\n     print \"0\";\n}\nelse\n{\n     $d = 0;\n     $e = $b;\n     $f = 100;\n     $j = 50;\n     $h = 0;\n     while(TRUE)\n     {\n          $d++;\n          $e += $f;\n          if($h == 1)\n          {\n               $d--;\n               break;\n          }\n          else\n          {\n               $g = floor($e / 50);\n               $i = $g % 475;\n               for($x = 1; $x <= 25; $x++)\n               {\n                    $i = ($i * 96 + 42) % 475;\n                    $k = $i + 26;\n                    if($a == $k)\n                    {\n                         $h = 1;\n                         break;\n                    }\n               }\n          }\n          $e -= $j;\n          if($h == 1)\n          {\n               break;\n          }\n          else\n          {\n               $g = floor($e / 50);\n               $i = $g % 475;\n               for($x = 1; $x <= 25; $x++)\n               {\n                    $i = ($i * 96 + 42) % 475;\n                    $k = $i + 26;\n                    if($a == $k)\n                    {\n                         $h = 1;\n                         break;\n                    }\n               }\n          }\n          $e += $j;\n     }\n     print $d;\n}\n?>", "lang_cluster": "PHP", "tags": ["brute force", "implementation"], "code_uid": "6224024a589188fe1ff8e724756fc265", "src_uid": "c9c22e03c70a94a745b451fc79e112fd", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\t$a = (int)fgets(STDIN) - 1;\n\t$one = fgets(STDIN);\n\t$b = [];\n\t$c = [];\n\t$d = explode(' ', $one);\n\n\twhile ($a >= 0) {\n\t\tif ($d[$a] >= 0) {\n\t\t\tarray_push($b, $d[$a]);\n\t\t} else {\n\t\t\tarray_push($c, $d[$a]);\n\t\t}\n\t\t$a--;\n\t}\n\techo (array_sum($b) - array_sum($c));\n?>", "lang_cluster": "PHP", "tags": ["greedy"], "code_uid": "cbf4b98bb98d3d8e23a50b4e268bf270", "src_uid": "4b5d14833f9b51bfd336cc0e661243a5", "difficulty": 800.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = array();\n$d = array();\nfor($x = 0; $x < $b; $x++)\n{\n     list($e, $f) = explode(\" \", trim(fgets(STDIN)));\n     $c[$x] = $e;\n     $d[$x] = $f;\n}\n$e = 0;\nif($a == 2)\n{\n     for($f = 0; $f < $b; $f++)\n     {\n          if($d[$f] == \"a\")\n          {\n               $e++;\n          }\n     }\n}\nelseif($a == 3)\n{\n     for($f = 0; $f < $b; $f++)\n     {\n          if($d[$f] == \"a\")\n          {\n               for($g = 0; $g < $b; $g++)\n               {\n                    if($d[$g] == $c[$f][0])\n                    {\n                         $e++;\n                    }\n               }\n          }\n     }\n}\nelseif($a == 4)\n{\n     for($f = 0; $f < $b; $f++)\n     {\n          if($d[$f] == \"a\")\n          {\n               for($g = 0; $g < $b; $g++)\n               {\n                    if($d[$g] == $c[$f][0])\n                    {\n                         for($h = 0; $h < $b; $h++)\n                         {\n                              if($d[$h] == $c[$g][0])\n                              {\n                                   $e++;\n                              }\n                         }\n                    }\n               }\n          }\n     }\n}\nelseif($a == 5)\n{\n     for($f = 0; $f < $b; $f++)\n     {\n          if($d[$f] == \"a\")\n          {\n               for($g = 0; $g < $b; $g++)\n               {\n                    if($d[$g] == $c[$f][0])\n                    {\n                         for($h = 0; $h < $b; $h++)\n                         {\n                              if($d[$h] == $c[$g][0])\n                              {\n                                   for($i = 0; $i < $b; $i++)\n                                   {\n                                        if($d[$i] == $c[$h][0])\n                                        {\n                                             $e++;\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n     }\n}\nelseif($a == 6)\n{\n     for($f = 0; $f < $b; $f++)\n     {\n          if($d[$f] == \"a\")\n          {\n               for($g = 0; $g < $b; $g++)\n               {\n                    if($d[$g] == $c[$f][0])\n                    {\n                         for($h = 0; $h < $b; $h++)\n                         {\n                              if($d[$h] == $c[$g][0])\n                              {\n                                   for($i = 0; $i < $b; $i++)\n                                   {\n                                        if($d[$i] == $c[$h][0])\n                                        {\n                                             for($j = 0; $j < $b; $j++)\n                                             {\n                                                  if($d[$j] == $c[$i][0])\n                                                  {\n                                                       $e++;\n                                                  }\n                                             }\n                                        }\n                                   }\n                              }\n                         }\n                    }\n               }\n          }\n     }\n}\nprint $e;\n?>", "lang_cluster": "PHP", "tags": ["dfs and similar", "strings", "dp", "brute force"], "code_uid": "452b74aed16c8eb0c5d4542b43c437d6", "src_uid": "c42abec29bfd17de3f43385fa6bea534", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$STDIN = fopen('./data.txt', 'r');\ndefine('STDIN', $STDIN);\n$n = trim(fgets(STDIN));\n$arr = explode(' ', trim(fgets(STDIN)));\nfunction gcd($a, $b) {\n  if ($b != 0) {\n    return gcd($b, $a % $b);\n  }\n  return $a;\n}\n$ans = 1;\nforeach ($arr as $key => $val) {\n  $cont = 1;\n  $temp = $val;\n  while ($temp != ($key + 1)) {\n    ++$cont;\n    if ($cont > 100) {\n      exit('-1');\n    }\n    $temp = $arr[$temp - 1];\n  }\n  if ($cont % 2 == 0) {\n    $cont /= 2;\n  }\n  $ans = $ans * $cont / gcd($ans, $cont);\n}\necho $ans;\n?>\n", "lang_cluster": "PHP", "tags": ["dfs and similar", "math"], "code_uid": "702905000bae263292d2789cbc93ff58", "src_uid": "149221131a978298ac56b58438df46c9", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $n = trim(fgets(STDIN));\n    $a = str_split($n);\n    $i = count($a) == 1 ? 9 : 10;\n    foreach ($a AS $k => $v) {\n        if ($k != 0) {\n            $i += 9 - $v;\n        }\n    }\n    echo $i;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "a4a2b64aab730db5f34fd1cde383f04e", "src_uid": "055fbbde4b9ffd4473e6e716da6da899", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = 1;\n$c = array($a => 1);\nwhile(TRUE)\n{\n     $a = intval($a);\n     $a += 1;\n     while(TRUE)\n     {\n          $a = strval($a);\n          if($a[strlen($a) - 1] == 0)\n          {\n               $a = substr($a, 0, -1);\n          }\n          else\n          {\n               break;\n          }\n     }\n     if($c[$a] == 1)\n     {\n          break;\n     }\n     else\n     {\n          $b++;\n          $c[$a] = 1;\n     }\n}\nprint $b;\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "98c04859f627314744e650dcc2ddc941", "src_uid": "055fbbde4b9ffd4473e6e716da6da899", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n\nfunction f($n){\n\t$n++;\n\twhile($n % 10 == 0) { $n /= 10; }\n\treturn $n;\n}\n\n$n = $n0 = trim(fgets(STDIN));\n\n$a = [];\n\n$c = 0;\n\nwhile($c < 10000) { $n = f($n); $a[] = $n; $c++; }\n\n$a = array_unique($a);\n\nif(in_array($n0, $a)) echo count($a); else echo count($a)+1;", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "38693b64d97ef5530e8c10346c1ad44b", "src_uid": "055fbbde4b9ffd4473e6e716da6da899", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\nif(($b[0] % 2 == 0) || ($b[$a - 1] % 2 == 0))\n{\n     print \"No\";\n}\nelse\n{\n     $c = array();\n     $d = array();\n     for($x = 0; $x < $a; $x++)\n     {\n          if(($x + 1) != $a)\n          {\n               $e = $b[$x] % 2;\n               if($e == 0)\n               {\n                    $d[count($d)] = $b[$x];\n               }\n               else\n               {\n                    $d[count($d)] = $b[$x];\n                    $f = $b[$x + 1] % 2;\n                    if($f == 0)\n                    {\n                         $d[count($d)] = $b[$x + 1];\n                         $x++;\n                    }\n                    else\n                    {\n                         if(count($d) % 2 == 1)\n                         {\n                              $c[count($c)] = $d;\n                              $d = array();\n                         }\n                    }\n               }\n          }\n          else\n          {\n               $d[count($d)] = $b[$x];\n               if(count($d) % 2 == 0)\n               {\n                    $g = 2;\n               }\n               else\n               {\n                    $c[count($c)] = $d;\n               }\n          }\n     }\n     $h = count($c);\n     while(TRUE)\n     {\n          if($h % 2 == 1)\n          {\n               $g = 1;\n               break;\n          }\n          else\n          {\n               $h -= 2;\n               if($h <= 0)\n               {\n                    break;\n               }\n          }\n     }\n     $b = array_reverse($b);\n     $c = array();\n     $d = array();\n     for($x = 0; $x < $a; $x++)\n     {\n          if(($x + 1) != $a)\n          {\n               $e = $b[$x] % 2;\n               if($e == 0)\n               {\n                    $d[count($d)] = $b[$x];\n               }\n               else\n               {\n                    $d[count($d)] = $b[$x];\n                    $f = $b[$x + 1] % 2;\n                    if($f == 0)\n                    {\n                         $d[count($d)] = $b[$x + 1];\n                         $x++;\n                    }\n                    else\n                    {\n                         if(count($d) % 2 == 1)\n                         {\n                              $c[count($c)] = $d;\n                              $d = array();\n                         }\n                    }\n               }\n          }\n          else\n          {\n               $d[count($d)] = $b[$x];\n               if(count($d) % 2 == 0)\n               {\n                    $g2 = 2;\n               }\n               else\n               {\n                    $c[count($c)] = $d;\n               }\n          }\n     }\n     $h = count($c);\n     while(TRUE)\n     {\n          if($h % 2 == 1)\n          {\n               $g2 = 1;\n               break;\n          }\n          else\n          {\n               $h -= 2;\n               if($h <= 0)\n               {\n                    break;\n               }\n          }\n     }\n     if(($g == 1) || ($g2 == 1))\n     {\n          print \"Yes\";\n     }\n     else\n     {\n          print \"No\";\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["implementation"], "code_uid": "9162c272c5395b8537e3f41e1a65d8c0", "src_uid": "2b8c2deb5d7e49e8e3ededabfd4427db", "difficulty": 1000.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nini_set('error_reporting', E_ALL & ~E_NOTICE);\n\nfscanf(STDIN, \"%d %d\", $n, $B);\n$a = explode(\" \", trim(fgets(STDIN)));\n$sum = array();\n$cost = array();\nfor ($i = 0; $i < $n - 1; $i++) {\n    $sum[$a[$i] % 2]++;\n    if ($sum[0] == $sum[1]) {\n        $cost[] = abs($a[$i+1] - $a[$i]);\n    }\n}\nsort($cost);\n$ans = 0;\nwhile (count($cost) > 0) {\n    $x = array_shift($cost);\n    $B -= $x;\n    if ($B >= 0) {\n        $ans++;\n    } else {\n        break;\n    }\n}\necho $ans;", "lang_cluster": "PHP", "tags": ["sortings", "dp", "greedy"], "code_uid": "3c2cf0947e1ea81c8f4428e8432ba530", "src_uid": "b3f8e769ee7719ea5c9f458428b16a4e", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = array();\n$e = 0;\n$f = 0;\nfor($x = 0; $x < $a; $x++)\n{\n     $g = $c[$x] % 2;\n     if($g == 0)\n     {\n          $e++;\n     }\n     else\n     {\n          $f++;\n     }\n     if(($e != 0) && ($f != 0) && ($e == $f))\n     {\n          $d[count($d)] = $x;\n          $e = 0;\n          $f = 0;\n     }\n}\nif((count($d) == 0) || ($d[count($d) - 1] != $a - 1) || ((count($d) == 1) && ($d[0] == $a - 1)))\n{\n     print \"0\";\n}\nelse\n{\n     $h = array();\n     for($x = 0; $x < count($d) - 1; $x++)\n     {\n          $i = abs($c[$d[$x] + 1] - $c[$d[$x]]);\n          $h[$x] = $i;\n     }\n     sort($h);\n     $i = 0;\n     $j = 0;\n     for($x = 0; $x < count($h); $x++)\n     {\n          $i += $h[$x];\n          if($i == $b)\n          {\n               $j = 1;\n               print $x + 1;\n               break;\n          }\n          elseif($i > $b)\n          {\n               $j = 1;\n               print $x;\n               break;\n          }\n     }\n     if($j == 0)\n     {\n          print count($h);\n     }\n}\n?>", "lang_cluster": "PHP", "tags": ["sortings", "dp", "greedy"], "code_uid": "5cc94880c4a1503adca9845e15c1bd7f", "src_uid": "b3f8e769ee7719ea5c9f458428b16a4e", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\nif(strlen($a) < 3)\n{\n    print \"byte\";\n}\nelseif(strlen($a) == 3)\n{\n    $b = TRUE;\n    if($a[0] == 1)\n    {\n        if($a[1] <= 2)\n        {\n            if(($a[1] == 2) && ($a[2] > 7))\n            {\n                $b = FALSE;\n            }\n        }\n        else\n        {\n            $b = FALSE;\n        }\n    }\n    else\n    {\n        $b = FALSE;\n    }\n    if($b == TRUE)\n    {\n        print \"byte\";\n    }\n    else\n    {\n        print \"short\";\n    }  \n}\nelseif((strlen($a) > 3) && (strlen($a) < 5))\n{\n    print \"short\";\n}\nelseif(strlen($a) == 5)\n{\n    $b = TRUE;\n    if($a[0] > 3)\n    {\n        $b = FALSE;\n    }\n    else\n    {\n        if(($a[0] == 3) && ($a[1] <= 2))\n        {\n            if(($a[0] == 3) && ($a[1] == 2) && ($a[2] <= 7))\n            {\n                if(($a[0] == 3) && ($a[1] == 2) && ($a[2] == 7) && ($a[3] <= 6))\n                {\n                    if(($a[0] == 3) && ($a[1] == 2) && ($a[2] == 7) && ($a[3] == 6) && ($a[4] > 7))\n                    {\n                        $b = FALSE;\n                    }\n                }\n                elseif(($a[0] == 3) && ($a[1] == 2) && ($a[2] == 7) && ($a[3] > 6))\n                {\n                    $b = FALSE;\n                }\n            }\n            elseif(($a[0] == 3) && ($a[1] == 2) && ($a[2] > 7))\n            {\n                $b = FALSE;\n            }\n        }\n        elseif(($a[0] == 3) && ($a[1] > 2))\n        {\n            $b = FALSE;\n        }\n    }\n    if($b == TRUE)\n    {\n        print \"short\";\n    }\n    else\n    {\n        print \"int\";\n    } \n}\nelseif((strlen($a) > 5) && (strlen($a) < 10))\n{\n    print \"int\";\n}\nelseif(strlen($a) == 10)\n{\n    $b = TRUE;\n    if($a[0] > 2)\n    {\n        $b = FALSE;\n    }\n    else\n    {\n        if(($a[0] == 2) && ($a[1] <= 1))\n        {\n            if(($a[0] == 2) && ($a[1] == 1) && ($a[2] <= 4))\n            {\n                if(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] <= 7))\n                {\n                    if(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] == 7) && ($a[4] <= 4))\n                    {\n                        if(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] == 7) && ($a[4] == 4) && ($a[5] <= 8))\n                        {\n                            if(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] == 7) && ($a[4] == 4) && ($a[5] == 8) && ($a[6] <= 3))\n                            {\n                                if(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] == 7) && ($a[4] == 4) && ($a[5] == 8) && ($a[6] == 3) && ($a[7] <= 6))\n                                {\n                                    if(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] == 7) && ($a[4] == 4) && ($a[5] == 8) && ($a[6] == 3) && ($a[7] == 6) && ($a[8] <= 4))\n                                    {\n                                        if(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] == 7) && ($a[4] == 4) && ($a[5] == 8) && ($a[6] == 3) && ($a[7] == 6) && ($a[8] == 4) && ($a[9] > 7))\n                                        {\n                                            $b = FALSE;\n                                        }\n                                    }\n                                    elseif(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] == 7) && ($a[4] == 4) && ($a[5] == 8) && ($a[6] == 3) && ($a[7] == 6) && ($a[8] > 4))\n                                    {\n                                        $b = FALSE;\n                                    }\n                                }\n                                elseif(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] == 7) && ($a[4] == 4) && ($a[5] == 8) && ($a[6] == 3) && ($a[7] > 6))\n                                {\n                                    $b = FALSE;\n                                }\n                            }\n                            elseif(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] == 7) && ($a[4] == 4) && ($a[5] == 8) && ($a[6] > 3))\n                            {\n                                $b = FALSE;\n                            }\n                        }\n                        elseif(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] == 7) && ($a[4] == 4) && ($a[5] > 8))\n                        {\n                            $b = FALSE;\n                        }\n                    }\n                    elseif(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] == 7) && ($a[4] > 4))\n                    {\n                        $b = FALSE;\n                    }\n                }\n                elseif(($a[0] == 2) && ($a[1] == 1) && ($a[2] == 4) && ($a[3] > 7))\n                {\n                    $b = FALSE;\n                }\n            }\n            elseif(($a[0] == 2) && ($a[1] == 1) && ($a[2] > 4))\n            {\n                $b = FALSE;\n            }\n        }\n        elseif(($a[0] == 2) && ($a[1] > 1))\n        {\n            $b = FALSE;\n        }\n    }\n    if($b == TRUE)\n    {\n        print \"int\";\n    }\n    else\n    {\n        print \"long\";\n    } \n}\nelseif((strlen($a) > 10) && (strlen($a) < 19))\n{\n    print \"long\";\n}\nelseif(strlen($a) == 19)\n{\n    $b = TRUE;\n    if($a[0] <= 9)\n    {\n        if(($a[0] == 9) && ($a[1] <= 2))\n        {\n            if(($a[0] == 9) && ($a[1] == 2) && ($a[2] <= 2))\n            {\n                if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] <= 3))\n                {\n                    if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] <= 3))\n                    {\n                        if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] <= 7))\n                        {\n                            if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] <= 2))\n                            {\n                                if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] <= 0))\n                                {\n                                    if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] <= 3))\n                                    {\n                                        if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] <= 6))\n                                        {\n                                            if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] <= 8))\n                                            {\n                                                if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] <= 5))\n                                                {\n                                                    if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] <= 4))\n                                                    {\n                                                        if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] == 4) && ($a[13] <= 7))\n                                                        { \n                                                            if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] == 4) && ($a[13] == 7) && ($a[14] <= 7))\n                                                            {\n                                                                if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] == 4) && ($a[13] == 7) && ($a[14] == 7) && ($a[15] <= 5))\n                                                                {\n                                                                    if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] == 4) && ($a[13] == 7) && ($a[14] == 7) && ($a[15] == 5) && ($a[16] <= 8))\n                                                                    {\n                                                                        if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] == 4) && ($a[13] == 7) && ($a[14] == 7) && ($a[15] == 5) && ($a[16] == 8) && ($a[17] <= 0))\n                                                                        {\n                                                                            if(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] == 4) && ($a[13] == 7) && ($a[14] == 7) && ($a[15] == 5) && ($a[16] == 8) && ($a[17] == 0) && ($a[18] > 7))\n                                                                            {\n                                                                                $b = FALSE;\n                                                                            }\n                                                                        }\n                                                                        elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] == 4) && ($a[13] == 7) && ($a[14] == 7) && ($a[15] == 5) && ($a[16] == 8) && ($a[17] > 0))\n                                                                        {\n                                                                            $b = FALSE;\n                                                                        }\n                                                                    }\n                                                                    elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] == 4) && ($a[13] == 7) && ($a[14] == 7) && ($a[15] == 5) && ($a[16] > 8))\n                                                                    {\n                                                                        $b = FALSE;\n                                                                    }\n                                                                }\n                                                                elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] == 4) && ($a[13] == 7) && ($a[14] == 7) && ($a[15] > 5))\n                                                                {\n                                                                    $b = FALSE;\n                                                                }\n                                                            }\n                                                            elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] == 4) && ($a[13] == 7) && ($a[14] > 7))\n                                                            {\n                                                                $b = FALSE;\n                                                            }\n                                                        }\n                                                        elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] == 4) && ($a[13] > 7))\n                                                        {\n                                                            $b = FALSE;\n                                                        }\n                                                    }\n                                                    elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] == 5) && ($a[12] > 4))\n                                                    {\n                                                        $b = FALSE;\n                                                    }\n                                                }\n                                                elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] == 8) && ($a[11] > 5))\n                                                {\n                                                    $b = FALSE;\n                                                }\n                                            }\n                                            elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] == 6) && ($a[10] > 8))\n                                            {\n                                                $b = FALSE;\n                                            }\n                                        }\n                                        elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] == 3) && ($a[9] > 6))\n                                        {\n                                            $b = FALSE;\n                                        }\n                                    }\n                                    elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] == 0) && ($a[8] > 3))\n                                    {\n                                        $b = FALSE;\n                                    }\n                                }\n                                elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] == 2) && ($a[7] > 0))\n                                {\n                                    $b = FALSE;\n                                }\n                            }\n                            elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] == 7) && ($a[6] > 2))\n                            {\n                                $b = FALSE;\n                            }\n                        }\n                        elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] == 3) && ($a[5] > 7))\n                        {\n                            $b = FALSE;\n                        }\n                    }\n                    elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] == 3) && ($a[4] > 3))\n                    {\n                        $b = FALSE;\n                    }\n                }\n                elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] == 2) && ($a[3] > 3))\n                {\n                    $b = FALSE;\n                }\n            }\n            elseif(($a[0] == 9) && ($a[1] == 2) && ($a[2] > 2))\n            {\n                $b = FALSE;\n            }\n        }\n        elseif(($a[0] == 9) && ($a[1] > 2))\n        {\n            $b = FALSE;\n        }\n    }\n    else\n    {\n        $b = FALSE;\n    }\n    if($b == TRUE)\n    {\n        print \"long\";\n    }\n    else\n    {\n        print \"BigInteger\";\n    } \n}\nelse\n{\n    print \"BigInteger\";\n}\n?>", "lang_cluster": "PHP", "tags": ["strings", "implementation"], "code_uid": "f1ab16f43a31e4436fa9eb24484ad17b", "src_uid": "33041f1832fa7f641e37c4c638ab08a1", "difficulty": 1300.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c, $d) = explode(\" \", trim(fgets(STDIN)));\nlist($e, $f, $g) = explode(\" \", trim(fgets(STDIN)));\nif(($e == \"+\") && ($f == \"*\") && ($g == \"*\"))\n{\n     $ab = $a + $b;\n     $ac = $a + $c;\n     $ad = $a + $d;\n     $bc = $b + $c;\n     $bd = $b + $d;\n     $cd = $c + $d;\n     \n     $abc = $ab * $c;\n     $abd = $ab * $d;\n     $dc = $d * $c;\n     $acb = $ac * $b;\n     $acd = $ac * $d;\n     $db = $d * $b;\n     $adb = $ad * $b;\n     $adc = $ad * $c;\n     $cb = $c * $b;\n     $bca = $bc * $a;\n     $bcd = $bc * $d;\n     $da = $d * $a;\n     $bda = $bd * $a;\n     $bdc = $bd * $c;\n     $ca = $c * $a;\n     $cda = $cd * $a;\n     $cdb = $cd * $b;\n     $ba = $b * $a;\n     \n     $abcd = $abc * $d;\n     $abdc = $abd * $c;\n     $dcab = $dc * $ab;\n     $acbd = $acb * $d;\n     $acdb = $acd * $b;\n     $dbac = $db * $ac;\n     $adbc = $adb * $c;\n     $adcb = $adc * $b;\n     $cbad = $cb * $ad;\n     $bcad = $bca * $d;\n     $bcda = $bcd * $a;\n     $dabc = $da * $bc;\n     $bdac = $bda * $c;\n     $bdca = $bdc * $a;\n     $cabd = $ca * $bd;\n     $cdab = $cda * $b;\n     $cdba = $cdb * $a;\n     $bacd = $ba * $cd;\n}\nelseif(($e == \"+\") && ($f == \"*\") && ($g == \"+\"))\n{\n     $ab = $a + $b;\n     $ac = $a + $c;\n     $ad = $a + $d;\n     $bc = $b + $c;\n     $bd = $b + $d;\n     $cd = $c + $d;\n     \n     $abc = $ab * $c;\n     $abd = $ab * $d;\n     $dc = $d * $c;\n     $acb = $ac * $b;\n     $acd = $ac * $d;\n     $db = $d * $b;\n     $adb = $ad * $b;\n     $adc = $ad * $c;\n     $cb = $c * $b;\n     $bca = $bc * $a;\n     $bcd = $bc * $d;\n     $da = $d * $a;\n     $bda = $bd * $a;\n     $bdc = $bd * $c;\n     $ca = $c * $a;\n     $cda = $cd * $a;\n     $cdb = $cd * $b;\n     $ba = $b * $a;\n     \n     $abcd = $abc + $d;\n     $abdc = $abd + $c;\n     $dcab = $dc + $ab;\n     $acbd = $acb + $d;\n     $acdb = $acd + $b;\n     $dbac = $db + $ac;\n     $adbc = $adb + $c;\n     $adcb = $adc + $b;\n     $cbad = $cb + $ad;\n     $bcad = $bca + $d;\n     $bcda = $bcd + $a;\n     $dabc = $da + $bc;\n     $bdac = $bda + $c;\n     $bdca = $bdc + $a;\n     $cabd = $ca + $bd;\n     $cdab = $cda + $b;\n     $cdba = $cdb + $a;\n     $bacd = $ba + $cd;\n}\nelseif(($e == \"*\") && ($f == \"*\") && ($g == \"+\"))\n{\n     $ab = $a * $b;\n     $ac = $a * $c;\n     $ad = $a * $d;\n     $bc = $b * $c;\n     $bd = $b * $d;\n     $cd = $c * $d;\n     \n     $abc = $ab * $c;\n     $abd = $ab * $d;\n     $dc = $d * $c;\n     $acb = $ac * $b;\n     $acd = $ac * $d;\n     $db = $d * $b;\n     $adb = $ad * $b;\n     $adc = $ad * $c;\n     $cb = $c * $b;\n     $bca = $bc * $a;\n     $bcd = $bc * $d;\n     $da = $d * $a;\n     $bda = $bd * $a;\n     $bdc = $bd * $c;\n     $ca = $c * $a;\n     $cda = $cd * $a;\n     $cdb = $cd * $b;\n     $ba = $b * $a;\n     \n     $abcd = $abc + $d;\n     $abdc = $abd + $c;\n     $dcab = $dc + $ab;\n     $acbd = $acb + $d;\n     $acdb = $acd + $b;\n     $dbac = $db + $ac;\n     $adbc = $adb + $c;\n     $adcb = $adc + $b;\n     $cbad = $cb + $ad;\n     $bcad = $bca + $d;\n     $bcda = $bcd + $a;\n     $dabc = $da + $bc;\n     $bdac = $bda + $c;\n     $bdca = $bdc + $a;\n     $cabd = $ca + $bd;\n     $cdab = $cda + $b;\n     $cdba = $cdb + $a;\n     $bacd = $ba + $cd;\n}\nelseif(($e == \"+\") && ($f == \"+\") && ($g == \"+\"))\n{\n     $ab = $a + $b;\n     $ac = $a + $c;\n     $ad = $a + $d;\n     $bc = $b + $c;\n     $bd = $b + $d;\n     $cd = $c + $d;\n     \n     $abc = $ab + $c;\n     $abd = $ab + $d;\n     $dc = $d + $c;\n     $acb = $ac + $b;\n     $acd = $ac + $d;\n     $db = $d + $b;\n     $adb = $ad + $b;\n     $adc = $ad + $c;\n     $cb = $c + $b;\n     $bca = $bc + $a;\n     $bcd = $bc + $d;\n     $da = $d + $a;\n     $bda = $bd + $a;\n     $bdc = $bd + $c;\n     $ca = $c + $a;\n     $cda = $cd + $a;\n     $cdb = $cd + $b;\n     $ba = $b + $a;\n     \n     $abcd = $abc + $d;\n     $abdc = $abd + $c;\n     $dcab = $dc + $ab;\n     $acbd = $acb + $d;\n     $acdb = $acd + $b;\n     $dbac = $db + $ac;\n     $adbc = $adb + $c;\n     $adcb = $adc + $b;\n     $cbad = $cb + $ad;\n     $bcad = $bca + $d;\n     $bcda = $bcd + $a;\n     $dabc = $da + $bc;\n     $bdac = $bda + $c;\n     $bdca = $bdc + $a;\n     $cabd = $ca + $bd;\n     $cdab = $cda + $b;\n     $cdba = $cdb + $a;\n     $bacd = $ba + $cd;\n}\nelseif(($e == \"*\") && ($f == \"*\") && ($g == \"*\"))\n{\n     $ab = $a * $b;\n     $ac = $a * $c;\n     $ad = $a * $d;\n     $bc = $b * $c;\n     $bd = $b * $d;\n     $cd = $c * $d;\n     \n     $abc = $ab * $c;\n     $abd = $ab * $d;\n     $dc = $d * $c;\n     $acb = $ac * $b;\n     $acd = $ac * $d;\n     $db = $d * $b;\n     $adb = $ad * $b;\n     $adc = $ad * $c;\n     $cb = $c * $b;\n     $bca = $bc * $a;\n     $bcd = $bc * $d;\n     $da = $d * $a;\n     $bda = $bd * $a;\n     $bdc = $bd * $c;\n     $ca = $c * $a;\n     $cda = $cd * $a;\n     $cdb = $cd * $b;\n     $ba = $b * $a;\n     \n     $abcd = $abc * $d;\n     $abdc = $abd * $c;\n     $dcab = $dc * $ab;\n     $acbd = $acb * $d;\n     $acdb = $acd * $b;\n     $dbac = $db * $ac;\n     $adbc = $adb * $c;\n     $adcb = $adc * $b;\n     $cbad = $cb * $ad;\n     $bcad = $bca * $d;\n     $bcda = $bcd * $a;\n     $dabc = $da * $bc;\n     $bdac = $bda * $c;\n     $bdca = $bdc * $a;\n     $cabd = $ca * $bd;\n     $cdab = $cda * $b;\n     $cdba = $cdb * $a;\n     $bacd = $ba * $cd;\n}\nelseif(($e == \"*\") && ($f == \"+\") && ($g == \"*\"))\n{\n     $ab = $a * $b;\n     $ac = $a * $c;\n     $ad = $a * $d;\n     $bc = $b * $c;\n     $bd = $b * $d;\n     $cd = $c * $d;\n     \n     $abc = $ab + $c;\n     $abd = $ab + $d;\n     $dc = $d + $c;\n     $acb = $ac + $b;\n     $acd = $ac + $d;\n     $db = $d + $b;\n     $adb = $ad + $b;\n     $adc = $ad + $c;\n     $cb = $c + $b;\n     $bca = $bc + $a;\n     $bcd = $bc + $d;\n     $da = $d + $a;\n     $bda = $bd + $a;\n     $bdc = $bd + $c;\n     $ca = $c + $a;\n     $cda = $cd + $a;\n     $cdb = $cd + $b;\n     $ba = $b + $a;\n     \n     $abcd = $abc * $d;\n     $abdc = $abd * $c;\n     $dcab = $dc * $ab;\n     $acbd = $acb * $d;\n     $acdb = $acd * $b;\n     $dbac = $db * $ac;\n     $adbc = $adb * $c;\n     $adcb = $adc * $b;\n     $cbad = $cb * $ad;\n     $bcad = $bca * $d;\n     $bcda = $bcd * $a;\n     $dabc = $da * $bc;\n     $bdac = $bda * $c;\n     $bdca = $bdc * $a;\n     $cabd = $ca * $bd;\n     $cdab = $cda * $b;\n     $cdba = $cdb * $a;\n     $bacd = $ba * $cd;\n}\nelseif(($e == \"+\") && ($f == \"*\") && ($g == \"*\"))\n{\n     $ab = $a + $b;\n     $ac = $a + $c;\n     $ad = $a + $d;\n     $bc = $b + $c;\n     $bd = $b + $d;\n     $cd = $c + $d;\n     \n     $abc = $ab * $c;\n     $abd = $ab * $d;\n     $dc = $d * $c;\n     $acb = $ac * $b;\n     $acd = $ac * $d;\n     $db = $d * $b;\n     $adb = $ad * $b;\n     $adc = $ad * $c;\n     $cb = $c * $b;\n     $bca = $bc * $a;\n     $bcd = $bc * $d;\n     $da = $d * $a;\n     $bda = $bd * $a;\n     $bdc = $bd * $c;\n     $ca = $c * $a;\n     $cda = $cd * $a;\n     $cdb = $cd * $b;\n     $ba = $b * $a;\n     \n     $abcd = $abc * $d;\n     $abdc = $abd * $c;\n     $dcab = $dc * $ab;\n     $acbd = $acb * $d;\n     $acdb = $acd * $b;\n     $dbac = $db * $ac;\n     $adbc = $adb * $c;\n     $adcb = $adc * $b;\n     $cbad = $cb * $ad;\n     $bcad = $bca * $d;\n     $bcda = $bcd * $a;\n     $dabc = $da * $bc;\n     $bdac = $bda * $c;\n     $bdca = $bdc * $a;\n     $cabd = $ca * $bd;\n     $cdab = $cda * $b;\n     $cdba = $cdb * $a;\n     $bacd = $ba * $cd;\n}\nelseif(($e == \"*\") && ($f == \"+\") && ($g == \"+\"))\n{\n     $ab = $a * $b;\n     $ac = $a * $c;\n     $ad = $a * $d;\n     $bc = $b * $c;\n     $bd = $b * $d;\n     $cd = $c * $d;\n     \n     $abc = $ab + $c;\n     $abd = $ab + $d;\n     $dc = $d + $c;\n     $acb = $ac + $b;\n     $acd = $ac + $d;\n     $db = $d + $b;\n     $adb = $ad + $b;\n     $adc = $ad + $c;\n     $cb = $c + $b;\n     $bca = $bc + $a;\n     $bcd = $bc + $d;\n     $da = $d + $a;\n     $bda = $bd + $a;\n     $bdc = $bd + $c;\n     $ca = $c + $a;\n     $cda = $cd + $a;\n     $cdb = $cd + $b;\n     $ba = $b + $a;\n     \n     $abcd = $abc + $d;\n     $abdc = $abd + $c;\n     $dcab = $dc + $ab;\n     $acbd = $acb + $d;\n     $acdb = $acd + $b;\n     $dbac = $db + $ac;\n     $adbc = $adb + $c;\n     $adcb = $adc + $b;\n     $cbad = $cb + $ad;\n     $bcad = $bca + $d;\n     $bcda = $bcd + $a;\n     $dabc = $da + $bc;\n     $bdac = $bda + $c;\n     $bdca = $bdc + $a;\n     $cabd = $ca + $bd;\n     $cdab = $cda + $b;\n     $cdba = $cdb + $a;\n     $bacd = $ba + $cd;\n}\nelseif(($e == \"+\") && ($f == \"+\") && ($g == \"*\"))\n{\n     $ab = $a + $b;\n     $ac = $a + $c;\n     $ad = $a + $d;\n     $bc = $b + $c;\n     $bd = $b + $d;\n     $cd = $c + $d;\n     \n     $abc = $ab + $c;\n     $abd = $ab + $d;\n     $dc = $d + $c;\n     $acb = $ac + $b;\n     $acd = $ac + $d;\n     $db = $d + $b;\n     $adb = $ad + $b;\n     $adc = $ad + $c;\n     $cb = $c + $b;\n     $bca = $bc + $a;\n     $bcd = $bc + $d;\n     $da = $d + $a;\n     $bda = $bd + $a;\n     $bdc = $bd + $c;\n     $ca = $c + $a;\n     $cda = $cd + $a;\n     $cdb = $cd + $b;\n     $ba = $b + $a;\n     \n     $abcd = $abc * $d;\n     $abdc = $abd * $c;\n     $dcab = $dc * $ab;\n     $acbd = $acb * $d;\n     $acdb = $acd * $b;\n     $dbac = $db * $ac;\n     $adbc = $adb * $c;\n     $adcb = $adc * $b;\n     $cbad = $cb * $ad;\n     $bcad = $bca * $d;\n     $bcda = $bcd * $a;\n     $dabc = $da * $bc;\n     $bdac = $bda * $c;\n     $bdca = $bdc * $a;\n     $cabd = $ca * $bd;\n     $cdab = $cda * $b;\n     $cdba = $cdb * $a;\n     $bacd = $ba * $cd;\n}\nprint min($abcd, $abdc, $dcab, $acbd, $acdb, $dbac, $adbc, $adcb, $cbad, $bcad, $bcda, $dabc, $bdac, $bdca, $cabd, $cdab, $cdba, $bacd);\n?>", "lang_cluster": "PHP", "tags": ["brute force"], "code_uid": "d779b015fbbbd9a6a79667be601a631c", "src_uid": "7a66fae63d9b27e444d84447012e484c", "difficulty": 1600.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n    $stdin = fopen('php://stdin', 'r');\n    fscanf($stdin, \"%d:%d\\n\", $n1, $n2);\n    \n    if($n1 >= 12) $n1 -= 12;\n    $ans1 = $n1 * 30 + $n2 / 2; \n    $ans2 = $n2 * 6;\n    echo $ans1.\" \". $ans2;\n?>\n", "lang_cluster": "PHP", "tags": ["math", "geometry"], "code_uid": "f82cbe2ab744261a2a2a4ace13ba6245", "src_uid": "175dc0bdb5c9513feb49be6644d0d150", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b, $c) = explode(\" \", trim(fgets(STDIN)));\n$d = explode(\" \", trim(fgets(STDIN)));\nrsort($d);\n$e = 0;\n$f = 0;\nfor($x = 0; $x <= $a; $x++)\n{\n    if(($b > $c) && ($x == $a))\n    {\n        $f = 1;\n        break;\n    }\n    elseif($b > $c)\n    {\n        $c += $d[$e] - 1;\n        $e++;\n    }\n    else\n    {\n        break;\n    }\n}\nif($f == 1)\n{\n    print \"-1\";\n}\nelse\n{\n    print $e;\n}\n?>", "lang_cluster": "PHP", "tags": ["sortings", "implementation", "greedy"], "code_uid": "137feb020021cea7c8649a7d5720b790", "src_uid": "b32ab27503ee3c4196d6f0d0f133d13c", "difficulty": 1100.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\nlist($a, $b) = explode(\" \", trim(fgets(STDIN)));\n$c = explode(\" \", trim(fgets(STDIN)));\n$d = new SplMaxHeap();\n$e = \"\";\n$f = 0;\n$h = array();\nfor($x = 0; $x < $a; $x++)\n{\n     if($c[$x] <= $b)\n     {\n          $e .= $f . \" \";\n          $b -= $c[$x];\n          $d -> insert($c[$x]);\n     }\n     else\n     {\n          while(TRUE)\n          {\n               $g = $d -> top();\n               $b += $g;\n               $d -> extract();\n               $f++;\n               $h[count($h)] = $g;\n               if($b >= $c[$x])\n               {\n                    $e .= $f . \" \";\n                    $b -= $c[$x];\n                    $d -> insert($c[$x]);\n                    for($y = 0; $y < count($h); $y++)\n                    {\n                         $d -> insert($h[$y]);\n                         $b -= $h[$y];\n                    }\n                    $f = 0;\n                    $h = array();\n                    break;\n               }\n          }\n     }\n}\nprint $e;\n?>", "lang_cluster": "PHP", "tags": ["sortings", "greedy"], "code_uid": "ad759dbff01fa19d90cdeb5dd7e369c8", "src_uid": "d3c1dc3ed7af2b51b4c49c9b5052c346", "difficulty": 1200.0, "exec_outcome": "PASSED"}
{"lang": "PHP", "source_code": "<?php\n$a = trim(fgets(STDIN));\n$b = explode(\" \", trim(fgets(STDIN)));\n$c = 0;\nwhile(TRUE)\n{\n     $c++;\n     sort($b);\n     $d = count($b);\n     $e = $b[0];\n     unset($b[0]);\n     for($x = 1; $x < $d; $x++)\n     {\n          if($b[$x] % $e == 0)\n          {\n               unset($b[$x]);\n          }\n     }\n     if(count($b) == 0)\n     {\n          break;\n     }\n}\nprint $c;\n?>", "lang_cluster": "PHP", "tags": ["math", "greedy", "implementation"], "code_uid": "3b5fcf8c6cd53c772a46c4eb897ad8f9", "src_uid": "63d9b7416aa96129c57d20ec6145e0cd", "difficulty": 800.0, "exec_outcome": "PASSED"}