[C语言]输出水仙花数

    #include <stdio.h>
    int sum(int s)
    {  
 int n = 0,sum=0;
    while(s>0)
     {
       n = s%10;
       sum =sum + (n*n*n);    
       s= s/10;    
     }
         return sum;
}
int main()
{
int i,a;
printf("水仙花数有\n");
 for(i = 100;i < 1000;i++)
{
    a = sum(i);
    if(i == a)
    printf("%d\t",i);
}
    
return 0;
}