字符串编码

解题思路:

注意事项:

参考代码:

#include <iostream>

#include<string>

using namespace std;

int main() {

string s;

cin >> s;

int sum;

int i = 0;

string tmp;

while (i < s.size()) {

tmp = s.substr(i, 2);

sum = stoi(tmp);

if (sum <= 26) {

cout << (char)('A' + sum - 1);

i += 2;

}

else {

cout << (char)('A' + s[i] - '0' - 1);

i++;

}

}

return 0;

}