1002 写出这个数 (20)（20 分）

#include <iostream>
#include <algorithm>
#include <cstring>
using namespace std ; 

#define maxn 10000
char str[maxn] ; 
int num ; 
char re[10][10] = {"ling" , "yi" ,"er" , "san" , "si" , "wu" , "liu" , "qi" , "ba" , "jiu"  } ; 
int result[maxn] , total ; 

int main(){

    cin >> str ; 
    num = 0 ; 
    total = 0 ; 

    for(int i=0 ; i<strlen(str) ; i++){
        num += str[i] - ‘0‘ ; 
    }
    while(num){
        result[total++] = num%10 ; 
        num /= 10 ; 
    }

    for(int i=total-1 ; i>=0 ; i--){
        if(i == total-1){
            cout << re[result[i]] ;
        }else{
            cout << " " << re[result[i]] ; 
        }
    }
    cout << endl ; 
    
    return 0 ; 
}