PAT (Basic Level) Practice （中文）1002 写出这个数 （20 分)

题目链接：https://pintia.cn/problem-sets/994805260223102976/problems/994805324509200384

 #include <iostream>
 #include <cstdio>
 #include <string>
 #include <cstring>
 #include <algorithm>
 #include <stack>
 using namespace std;
 char s[];
 string a[]={"ling","yi","er","san","si","wu","liu","qi","ba","jiu"};
 int main()
 {
        while(scanf("%s",&s)!=EOF){
            int sum=;
            int len=strlen(s);
            for(int i=;i<len;i++){
                sum+=s[i]-'';
            }
            //cout<<sum<<endl;
            stack<int> sta;
            while(sum){
                sta.push(sum%);
                sum/=;
            }
            while(!sta.empty()){
                cout<<a[sta.top()];
                sta.pop();
                if(!sta.empty()) cout<<' ';
            }
            cout<<endl;
        }
     return ;
 }