program of checking armstrong number in c++

// illustrate the concept of armstrong number in c++ 

/*
  Armstrong number means a number which equals to the sum of cubes of its digits.
  Example - 153 (1*1*1 + 5*5*5 +3*3*3)
*/


#include<iostream.h>
#include<conio.h>

void main()
{
 int n,rem,sum=0,temp;
 cout<<"Enter a number:";
 cin>>n;
 temp=n;
 while(n>0)
 {
   rem=n%10;
   sum=sum+rem*rem*rem;
   n=n/10;
 }
 if(temp==sum)
   cout<<"Entered number is a armstrong";
 else
 cout<<"Entered number is not armstrong";

 getch();
}

Output

Enter a number : 153
Entered number is a armstrong


Enter a number : 165
Entered number is not armstrong