public static void main ( String [ ] args ) {
  n = scanner . nextInt ( ) ;
  a = new int [ n ] ;
  int b [ ] = new int [ n ] ;
  mark = new boolean [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    a [ i ] = scanner . nextInt ( ) - 1 ;
  }
  int sum = 0 ;
  int ans = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    b [ i ] = scanner . nextInt ( ) ;
    sum += b [ i ] ;
  }
  if ( sum % 2 == 0 ) {
    ans = 1 ;
  }
  int low = sDFS ( ) ;
  if ( low == 1 ) {
    System . out . println ( ans ) ;
    return ;
  }
  System . out . println ( low + ans ) ;
}

public static void main ( String [ ] args ) { n = scanner . nextInt ( ) ; a = new int [ n ] ; int b [ ] = new int [ n ] ; mark = new boolean [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { a [ i ] = scanner . nextInt ( ) - 1 ; } int sum = 0 ; int ans = 0 ; for ( int i = 0 ; i < n ; i ++ ) { b [ i ] = scanner . nextInt ( ) ; sum += b [ i ] ; } if ( sum % 2 == 0 ) { ans = 1 ; } int low = sDFS ( ) ; if ( low == 1 ) { System . out . println ( ans ) ; return ; } System . out . println ( low + ans ) ; }
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