PTA 念数字（15分）

#include<stdio.h>
#include<math.h>
int main(){
    char str[10][5]={"ling","yi","er","san","si","wu","liu","qi","ba","jiu"};
    int num,i,flag=0,count=0,temp,t;
    scanf("%d",&num);
    if(num<0){
        printf("fu");
        num*=(-1);
        flag=1;
    }else if(num==0){
      printf("ling");
  }
    temp=num;
    while(temp!=0){
        temp/=10;
        count++;
    }
    count-=1;
    for(i=count;i>=0;i--){
        t=(num/(int)pow(10,i))%10;
        if(!flag){
            printf("%s",str[t]);
            flag=1;
        }else{
            printf(" %s",str[t]);
        }
    }
    return 0;
}