static boolean getParity ( int n ) {
  boolean parity = false ;
  while ( n != 0 ) {
    parity = ! parity ;
    n = n & ( n - 1 ) ;
  }
  return parity ;
}

static boolean getParity ( int n ) { boolean parity = false ; while ( n != 0 ) { parity = ! parity ; n = n & ( n - 1 ) ; } return parity ; }
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