Write a C++ Program to check Armstrong number.

C++ Code

#include<iostream>
using namespace std;
int main()
{
int num,s,d,n,rem=0;
        cout<<"Enter three digit num=";
cin>>num;
s=num;
    while (s!=0)
    {
    n=s%10;
    rem=rem+n*n*n;
    s=s/10;
}
if(rem==num)
{
cout<<"It is an armstrong number";
}
else
cout<<"It is not an armstrong number";
}