armstron.cpp

#include <iostream>
using namespace std;

int main(void)
{
  int origNum, num,sum = 0;
  cout << "Enter a positive  integer: ";
  cin >> origNum;

  num = origNum;

  while(num)
  {int rem;
      rem = num % 10;
      sum += rem * rem * rem;
      num /= 10;
  }

  if(sum == origNum)
    cout << origNum << " is an Armstrong number.";
  else
    cout << origNum << " is not an Armstrong number.";

  return 0;
}