写出这个数（20）

 1 #include <iostream>
 2 #include <algorithm>
 3 #include <string>
 4 using namespace std;
 5 const int maxn = 15;
 6 string a;
 7 char s[maxn][maxn] = { "ling", "yi", "er", "san", "si", "wu", "liu", "qi", "ba", "jiu" };
 8 int b[10005];
 9 
10 int main(){
11 
12     while (cin >> a){
13         int ans = 0;
14         for (char x : a){
15             ans += x - ‘0‘;
16         }
17         if (ans == 0){
18             cout << "ling" << endl;
19             continue;
20         }
21         int len = 0;
22         while (ans){
23             b[len++] = ans % 10;
24             ans /= 10;
25         }
26         for (int i = len - 1; i >= 0; i--){
27             if (i == len - 1){
28                 cout << s[b[i]];
29             }
30             else
31                 cout << " " << s[b[i]];
32         }
33         cout << endl;
34     }
35 
36     //system("pause");
37     return 0;
38 }