static void sortPrimes ( int arr [ ] , int n ) {
  SieveOfEratosthenes ( 100005 ) ;
  Vector < Integer > v = new Vector < Integer > ( ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( prime [ arr [ i ] ] ) {
      v . add ( arr [ i ] ) ;
    }
  }
  Comparator comparator = Collections . reverseOrder ( ) ;
  Collections . sort ( v , comparator ) ;
  int j = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( prime [ arr [ i ] ] ) {
      arr [ i ] = v . get ( j ++ ) ;
    }
  }
}

static void sortPrimes ( int arr [ ] , int n ) { SieveOfEratosthenes ( 100005 ) ; Vector < Integer > v = new Vector < Integer > ( ) ; for ( int i = 0 ; i < n ; i ++ ) { if ( prime [ arr [ i ] ] ) { v . add ( arr [ i ] ) ; } } Comparator comparator = Collections . reverseOrder ( ) ; Collections . sort ( v , comparator ) ; int j = 0 ; for ( int i = 0 ; i < n ; i ++ ) { if ( prime [ arr [ i ] ] ) { arr [ i ] = v . get ( j ++ ) ; } } }
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