PAT 甲级1027. Colors in Mars (20)

有一个点没过去

#include "bits/stdc++.h"using namespace std;string work="0123456789ABC";string toString13(int num){    string s;    while(num)    {        s=work[num%13]+s;        num/=13;    }    return s;}int main() {    int n=3;    while(n--)    {        int num;        cin>>num;        if(n==2) cout<<"#";        string s=toString13(num);        if(s.size()==1)            cout<<0;        cout<<s;    }return 0;}