Armstrong Number ( C Program )

Recursive C Program:

Aim:To find given number is Armstrong Number or Not.

Program:
#include<stdio.h>
int armn(int n)
void main()
{
   int num,res;
printf("Enter the number:\n"); scanf("%d",&num);
res=armn(num);
   if(num==res)
printf(" \n%d is an Armstrong number ",num);
   else
printf("\n%d is NOT an Armstrong number",num);
}
int armn( int n)
  {
    int arms=0,rem;
while(n>0)
     {
       rem=n%10;         arms=arms+(rem*rem*rem);              n=n/10;
      }
    return ( arms) ;
  }

Output:
Enter the Number: 121
121 is NOT an Armstrong number

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