Case : II
int [ ] A = new int [ MAX ] ; int [ ] B = new int [ MAX ] ; for ( int i = 0 ; i < MAX ; i ++ ) { A [ i ] = - 1 ; B [ i ] = - 1 ; } for ( int i = 0 ; i < n ; i ++ ) { int a = s [ i ] - ' a ' ; int b = t [ i ] - ' a ' ; if ( a == b ) continue ;