题目描述

https://www.acwing.com/problem/content/793/

C++ 代码

#include<iostream>
#include<cstdio>
#include<vector>
using namespace std;
vector<int> add(vector<int> &A,vector<int> &B)
{
    vector<int> C;
    int t=0;
    for(int i=0;i<A.size()||i<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) C.push_back(1);
    return C;
}
int main()
{
    string a,b;
    vector<int> A,B;
    cin>>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]);
    return 0;
}