代码如下：

#include <bits/stdc++.h>
using namespace std;

int a[505], b[505], c[505];

int main()
{
    string as, bs;
    getline(cin, as);
    getline(cin, bs);
    for (int i = as.length(); i >= 1; i--)
    {
        a[i] = as.at(as.length() - i) - 48;
    }
    for (int i = bs.length(); i >= 1; i--)
    {
        b[i] = bs.at(bs.length() - i) - 48;
    }
    for (int i = 1; i <= max(as.length(), bs.length()) + 1; i++)
    {
        c[i] = (a[i] + b[i]) % 10;
        a[i + 1] += (a[i] + b[i]) / 10;
    }
    for (int i = max(as.length(), bs.length()) + (c[max(as.length(), bs.length())] != 0); i >= 1; i++)
    {
        cout << c[i];
    }
    return 0;
}

望大神debug成功！！！