【PAT甲级】1005 Spell It Right (20 分)

题意：

给出一个非零整数N（<=10^100），计算每位之和并用英文输出。

AAAAAccepted code：

 #include<bits/stdc++.h>
 using namespace std;
 string s;
 char num[][]={"zero","one","two","three","four","five","six","seven","eight","nine"};
 int main(){
     cin>>s;
     int ans=;
     for(int i=;i<s.length();++i)
         ans+=s[i]-'';
     int x=ans/;
     ans%=;
     int y=ans/;
     ans%=;
     int z=ans;
     if(x)
         cout<<num[x]<<" "<<num[y]<<" "<<num[z];
     else if(y)
         cout<<num[y]<<" "<<num[z];
     else
         cout<<num[z];
     return ;
 }