大佬求调

#include<bits/stdc++.h>
using namespace std;
string s1,s2;
int a[50000000],b[50000000],c[100000019];
int l;
int main(){
    cin >> s1 >> s2;
    for(int i = 0;i < s1.size();i++){
        a[s1.size () - i - 1] = s1[i] - '0';
    }
        for(int i = 0;i < s2.size();i++){
        b[s2.size () - i - 1] = s2[i] - '0';
    }
    l = s1.size();
    if(s2.size() > l){
        l = s2.size();
    }
    for(int i = 0;i < l;i++){
        c[i]=a[i] + b[i];
    }
    for(int i = 0;i < l;i++){
        if(c[i]>=10){
            c[i + 1] = c[i + 1] + c[i] / 10;
            c[i]%=10;
        }
    }
    if(c[l] != 0){
        l++;
    }
    for(int i = l - 1;i >= 0; i--){
        cout<<c[i];
    }
    return 0;
}