Program to check if number is Armstrong or not

Armstrong number is number in which sum of cube of its all digits is equal to original number itself.
e.g: 153.
Here,
1³+5³+3³=1 + 125 + 27 = 153.
So, 153 is an Armstrong number.

Program:

#include<stdio.h>

void main()

{

int n,a,b,c;

c=0;

printf("Enter number of which you want to test: ");

scanf("%d",&n);

a=n;

while(a!=0)

{

b=a%10;

c=(b*b*b)+c;

a=a/10;

}

if(c!=n)

{

printf("Not Armstrong!!!");

}

else

{

printf("Armstrong!!!");

}

}

Output: