static void print_max ( int a [ ] , int n , int k ) {
  int [ ] max_upto = new int [ n ] ;
  Stack < Integer > s = new Stack < > ( ) ;
  s . push ( 0 ) ;
  for ( int i = 1 ;
  i < n ;
  i ++ ) {
    while ( ! s . empty ( ) && a [ s . peek ( ) ] < a [ i ] ) {
      max_upto [ s . peek ( ) ] = i - 1 ;
      s . pop ( ) ;
    }
    s . push ( i ) ;
  }
  while ( ! s . empty ( ) ) {
    max_upto [ s . peek ( ) ] = n - 1 ;
    s . pop ( ) ;
  }
  int j = 0 ;
  for ( int i = 0 ;
  i <= n - k ;
  i ++ ) {
    while ( j < i || max_upto [ j ] < i + k - 1 ) {
      j ++ ;
    }
    System . out . print ( a [ j ] + " " ) ;
  }
  System . out . println ( ) ;
}

static void print_max ( int a [ ] , int n , int k ) { int [ ] max_upto = new int [ n ] ; Stack < Integer > s = new Stack < > ( ) ; s . push ( 0 ) ; for ( int i = 1 ; i < n ; i ++ ) { while ( ! s . empty ( ) && a [ s . peek ( ) ] < a [ i ] ) { max_upto [ s . peek ( ) ] = i - 1 ; s . pop ( ) ; } s . push ( i ) ; } while ( ! s . empty ( ) ) { max_upto [ s . peek ( ) ] = n - 1 ; s . pop ( ) ; } int j = 0 ; for ( int i = 0 ; i <= n - k ; i ++ ) { while ( j < i || max_upto [ j ] < i + k - 1 ) { j ++ ; } System . out . print ( a [ j ] + " ▁ " ) ; } System . out . println ( ) ; }
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