check whether a number is Armstrong number or not.

#include<stdio.h>
int main()
{
    int num,temp,r,sum=0;
    scanf("%d",&num);
    temp=num;

    while(temp!=0)
    {
        r=temp%10;
        sum=sum+r*r*r;
        temp=temp/10;
    }

    if(sum==n)
        printf("armstong number");

    else
        printf("not armstong number");

    return 0;
}