AOJ0017
Caesar Cipher | Aizu Online Judge
#include <iostream> using namespace std; int main() { string s; while (getline(cin, s)) { while (true) { for (int i = 0; i < s.length(); ++i) { if (s[i] == ' ' || s[i] == '.') { continue; } if (s[i] == 'z') { s[i] -= 26; } ++s[i]; } if (s.find("the") != string::npos || s.find("this") != string::npos || s.find("that") != string::npos) { cout << s << endl; break; } } } return 0; }