C++ Program to find ARMSTRONG numbers

#include <iostream.h>

#include <conio.h>

#include <math.h>

class armstrong

{

  private:

    int n1,n2;

  public:

    void input()

    {

      cout<<"Enter range(n1 and n2): ";

      cin>>n1>>n2;

    }

    void verify();

};

// :: is scope resolution operator

void armstrong::verify()

{

  int sum,rem,num,n;

  for(num=n1;num<=n2;num++)

  {

    n=num;

    sum=0;

    while(n!=0)

    {

      rem=n%10;

      sum+=pow(rem,3);

      n=n/10;

    }

    if(num==sum)

    cout<<num<<endl;

  }

}

void main()

{

  armstrong a1,b1;

// a1 and b1 are objects of class armstrong.

  a1.input();

  a1.verify();

  b1.input();

  b1.verify();

  getch();

}

OUTPUT: