public static int solve ( int arr [ ] , int k ) {
  Arrays . parallelSort ( arr ) ;
  int sum = 0 ;
  int cnt = 0 ;
  int i = 11 ;
  while ( sum < k && i >= 0 ) {
    sum += arr [ i ] ;
    cnt ++ ;
    i -- ;
  }
  return sum < k ? - 1 : cnt ;
}

public static int solve ( int arr [ ] , int k ) { Arrays . parallelSort ( arr ) ; int sum = 0 ; int cnt = 0 ; int i = 11 ; while ( sum < k && i >= 0 ) { sum += arr [ i ] ; cnt ++ ; i -- ; } return sum < k ? - 1 : cnt ; }
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