Armstrong Number

C Program to Check Armstrong Number

#include<stdio.h>   
int main()
{   
   int a,b,sum=0;
   scanf("%d",&a);   
   int t=a;   
   while(a>0)   
   {   
    b=a%10;   
    sum=sum+(b*b*b);   
    a=a/10;   
   }   
    if(t==sum)   
       printf("Its an armstrong number");   
    else   
       printf("Not an armstrong number");   
    return 0;   

} 

Output:

153                                                                                                                   

Its an armstrong number