Write a program in c to check whether a number is armstrong or not.

#include<stdio.h>
int main()
{
int num,temp,r,sum=0;
printf("Enter a number\n");
scanf("%d",&num);
temp=num;
while(num>0)
{
r=num%10;
sum=sum+(r*r*r);
num=num/10;
}
if(sum==temp)
{
printf("Armstrong Number");
}
else
{
printf("Not an Armstrong Number");
}
return 0;
}