ACM002 IBM Minus One

#include<fstream>#include<iostream>#include<string>using namespace std;int main(){ifstream cin("data.txt");int num = 0;while(cin >> num){for(int i = 0; i < num; ++i){cout << "String #" << i+1 << endl;string str;cin >> str;for(int i = 0; i < str.length(); ++i){if(str[i] == 'Z')cout << 'A';elsecout << (char)(str[i] + 1);}cout << endl << endl;}}return 0;}