static void findNumbers ( int arr [ ] , int n ) {
  Arrays . sort ( arr ) ;
  reverse ( arr ) ;
  int freq [ ] = new int [ arr [ 0 ] + 1 ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    freq [ arr [ i ] ] ++ ;
  }
  int size = ( int ) Math . sqrt ( n ) ;
  int brr [ ] = new int [ size ] , x , l = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( freq [ arr [ i ] ] > 0 && l < size ) {
      brr [ l ] = arr [ i ] ;
      freq [ brr [ l ] ] -- ;
      l ++ ;
      for ( int j = 0 ;
      j < l ;
      j ++ ) {
        if ( i != j ) {
          x = __gcd ( arr [ i ] , brr [ j ] ) ;
          freq [ x ] -= 2 ;
        }
      }
    }
  }
  printArr ( brr , size ) ;
}

static void findNumbers ( int arr [ ] , int n ) { Arrays . sort ( arr ) ; reverse ( arr ) ; int freq [ ] = new int [ arr [ 0 ] + 1 ] ; for ( int i = 0 ; i < n ; i ++ ) { freq [ arr [ i ] ] ++ ; } int size = ( int ) Math . sqrt ( n ) ; int brr [ ] = new int [ size ] , x , l = 0 ; for ( int i = 0 ; i < n ; i ++ ) { if ( freq [ arr [ i ] ] > 0 && l < size ) { brr [ l ] = arr [ i ] ; freq [ brr [ l ] ] -- ; l ++ ; for ( int j = 0 ; j < l ; j ++ ) { if ( i != j ) { x = __gcd ( arr [ i ] , brr [ j ] ) ; freq [ x ] -= 2 ; } } } } printArr ( brr , size ) ; }
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