高精度加法

#include<bits/stdc++.h>
using namespace std;
const int N = 1e5+9;
int a[N];
int b[N];
int c[N];
int main(){
    string str1,str2;
    cin>>str1>>str2;
	 
    int len1 = str1.size(),len2 = str2.size();
    for(int i=1,j=len1-1;i<=len1;++i,--j)
    {
        a[i]=str1[j]-'0';
      //  cout<<a[i]<<" " ;
    }
    for(int i=1,j=len2-1;i<=len2;++i,--j)
    {
        b[i]=str2[j]-'0';
    }
    int mx = max(len1,len2);
    for(int i=1;i<=mx;++i)
    {
        c[i] = a[i]+b[i]+c[i];
        c[i+1] = c[i]/10;
        c[i] = c[i]%10;
    }
    while(c[mx+1])mx++;
    for(int i=mx;i>=1;i--) cout<<c[i];
    return 0;
}