题目描述

a+b

C++ 代码

#include<iostream>
#include<vector>
#include<cstdio>
#include<algorithm>

using namespace std;

vector<int> add(vector<int>A,vector<int>B){
    vector<int> C;
    int t=0;
    for(int i=0;i<max(A.size(),B.size());i++) 
    {
        if(i<A.size())t+=A[i];
        if(i<B.size()) t+=B[i];
        C.push_back(t%10);
        t/=10;
    }
    if(t>0)C.push_back(t);
    return C;
}


int main(){
    string a,b;
    while(cin>>a>>b){
        vector<int> A,B;
        for(int i=a.size()-1;i>=0;i--) A.push_back(a[i]-'0');
        for(int i=b.size()-1;i>=0;i--) B.push_back(b[i]-'0');

        vector<int> C = add(A,B);
        for(int i=C.size()-1;i>=0;i--) printf("%d",C[i]);
        cout<<endl;
    }
    return 0;
}