public static void main ( String [ ] args ) {
  Scanner scanner = new Scanner ( System . in ) ;
  int n , d ;
  n = scanner . nextInt ( ) ;
  d = scanner . nextInt ( ) ;
  int [ ] nums = new int [ n ] ;
  for ( int i = 0 ;
  i < n ;
  ++ i ) {
    nums [ i ] = scanner . nextInt ( ) ;
  }
  Arrays . sort ( nums ) ;
  int ans = n ;
  for ( int i = 0 , j = 0 ;
  j < n ;
  ++ i ) {
    for ( ;
    j < n && nums [ j ] - nums [ i ] <= d ;
    ++ j ) ;
    ans = Math . min ( ans , n - ( j - i ) ) ;
  }
  System . out . println ( "" + ans ) ;
}

public static void main ( String [ ] args ) { Scanner scanner = new Scanner ( System . in ) ; int n , d ; n = scanner . nextInt ( ) ; d = scanner . nextInt ( ) ; int [ ] nums = new int [ n ] ; for ( int i = 0 ; i < n ; ++ i ) { nums [ i ] = scanner . nextInt ( ) ; } Arrays . sort ( nums ) ; int ans = n ; for ( int i = 0 , j = 0 ; j < n ; ++ i ) { for ( ; j < n && nums [ j ] - nums [ i ] <= d ; ++ j ) ; ans = Math . min ( ans , n - ( j - i ) ) ; } System . out . println ( " " + ans ) ; }
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