Armstrong number using c program

What is Armstrong number ?

An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. For example, 371 is an Armstrong number since 3**3 + 7**3 + 1**3 = 371.

Here is a simple program to print Armstrong number of three digits using Armstrong number :

#include<stdio.h>
#include<conio.h>
main()
{
      int num,temp,sum=0,rem;
      printf("Enter number for checking Armstrong");
      scanf("%d",&num);
      temp=num;
      while(num!=0){
                    rem=num%10;
                    sum=sum+(rem*rem*rem);
                    num=num/10;
                    }
                    if(temp==sum)
      printf("%d is an armstrong number",temp);
      else
      printf("%d is not an armstrong number",temp);
      getch();
      }