题解 | 又一版 A+B

#include<iostream>
#include<stack>
using namespace std;
int main(){
    int m;
    long long a,b;
    stack<int> answer;
    while(cin>>m){
        if(m==0)
            break;
        else{
            cin>>a>>b;
            long long sum=a+b;
            if(sum==0){
                cout<<"0";
            }
            while(sum){
                answer.push(sum%m);
                sum=sum/m;
            }
            while(!answer.empty()){
                cout<<answer.top();
                answer.pop();
            }
        }
        cout<<endl;
    }
}