C++ 代码

#include <iostream>
#include <vector>
using namespace std;

int main() {
    string a, b;
    vector<int> va, vb, vc;
    cin >> a >> b;
    for(int i = a.length()-1; i >= 0; i--) va.push_back(a[i] - '0');
    for(int i = b.length()-1; i >= 0; i--) vb.push_back(b[i] - '0');
    int t = 0;
    int i = 0;
    for(; i < va.size() || i < vb.size(); i++) {
        int ta = 0, tb = 0;
        if(i < va.size()) ta = va[i];
         if(i < vb.size()) tb = vb[i];
        int temp = t + ta + tb;
        if(temp >= 10) {
            t = 1;
            temp = temp - 10;
        } else {
            t = 0;
        }
        vc.push_back(temp);
    }
     if(t == 1) {
          vc.push_back(1);
     }
     for(int i = vc.size() - 1; i >= 0; i--) {
         cout << vc[i];
     }
}