https://pintia.cn/problem-sets/994805260223102976/problems

#include<iostream>
#include<algorithm>
#include<cstring>

using namespace std;

void PINGYIN( char ch[])
{
    char cha[][5] ={"ling","yi","er","san","si","wu","liu","qi","ba","jiu"};//创建拼音数组 数组每一行最大长度为5
    int len = strlen( ch );
    int sum = 0;
    for(int i = 0 ; i < len ; i++)
    {
        sum += ch[i] - '0';
    }
    int i = 0 , res[5];
    while( sum != 0 )
    {
        res[i++] = sum % 10;
        sum /= 10;
    }
    i--; //不写会段越界。
    while(i >= 0 )
    {
        cout << cha[res[i--]] ;
        if(i >= 0)   cout << ' ';
    }
}
int main()
{
    char ch[1000];
    cin >> ch;  // 不是 ch[0]
    PINGYIN( ch );
    return 0;
}