C-Program To Find Armstrong Number

Definition of Armstrong number:
Definition for c programming point of view:
Those numbers which sum of the cube of its digits is equal to that number are known as Armstrong numbers. For example 153 since 1^3 + 5^3 + 3^3 = 1+ 125 + 9 =153
Other Armstrong numbers: 370,371,407 etc.

#include<stdio.h>
int main()

{
int num,r,sum=0,temp;
printf("\nEnter a number:-");
scanf("%d",&num);
temp=num;
while(num!=0)

{
r=num%10;
num=num/10;
sum=sum+(r*r*r);
}
if(sum==temp)
printf("\nThe number %d is an armstrong number",temp);
else
printf("\nThe number %d is not an armstrong number",temp);
return 0;
}