#include<stdio.h>
main()
{
    long a,b,c,i=0;
    scanf("%ld",&a);
    do
    {
        b = a%10;
        c=a/10;
        i = i+b*b*b;        
    }while (b!=0);
    printf("%ld\n",i);
 }




有一个这样的东西
ld retued 1 exit status

#include <stdio.h>
#include <math.h>
main()
{
    long n, sum=0;
    scanf("%ld",&n);
    for (; n; n/=10)
        sum += pow(n%10,3);
    printf("%ld\n", sum);
 }
 

楼上正解