1002. 写出这个数 (20)

#include <stdio.h>

int main(){

char num[101] = {0};
char pingyin[][9] =  { "ling","yi","er","san","si","wu","liu","qi","ba","jiu"};
int a[10];
int size = 0;
scanf("%s",num);
char * tmp = num;
int sum = 0;
while(*tmp){
sum+=*tmp-'0';
tmp++;
}
while(sum!=0){
int tmp = sum%10;
sum = sum/10;
size++;
a[size-1]=tmp;
}
printf("%s",pingyin[a[size-1]]);
for(int i=size-2;i>=0;i--){
printf(" %s",pingyin[a[i]]);
}
}