pat 1005

sprintf 函数的使用会使这道题简单很多

#include<stdio.h>
#include<string.h>
void pt(char a)
{
    switch (a)
    {
    case '0': printf("zero"); break;
    case '1': printf("one"); break;
    case '2': printf("two");break;
    case '3': printf("three"); break;
    case '4': printf("four"); break;
    case '5': printf("five"); break;
    case '6': printf("six"); break;
    case '7': printf("seven"); break;
    case '8': printf("eight"); break;
    case '9': printf("nine"); break;
    }
}
void print(char a[], int length){

    pt(a[0]);
    for (int j = 1; j < length; j++)
    {
        printf(" ");
        pt(a[j]);
    }
}
int main()
{
     char a[105];
     int length, sum ;
     int i,flag = 0;
     while (scanf("%s", a) != EOF)
     {
         sum = 0;
         for(i = 0; i< strlen(a); i++)
             sum = sum + a[i] - '0' ;
         length = sprintf(a, "%d", sum);

         if(flag == 1) printf("\n");
          else
             flag = 1;
         print(a, length);
     }

    return 0;
}