拿ai生成的最笨方法

#include <iostream>
#include <string>
#include <algorithm>

using namespace std;

int main() {
string a_str, b_str;
cin >> a_str >> b_str;

reverse(a_str.begin(), a_str.end());
reverse(b_str.begin(), b_str.end());

string result;
int carry = 0;

for (int i = 0; i < max(a_str.size(), b_str.size()) || carry; ++i) {
    int digit_a = (i < a_str.size()) ? a_str[i] - '0' : 0;
    int digit_b = (i < b_str.size()) ? b_str[i] - '0' : 0;
    int sum = digit_a + digit_b + carry;
    carry = sum / 10;
    result.push_back(sum % 10 + '0');
}

reverse(result.begin(), result.end());
cout << result << endl;

return 0;

}