prog9.cpp

/*
Write a C++ program to create a base class Number that reads an integer and
derived classes Square and Cube that calculate and display the square and cube
of an integer respectively.
*/

#include <iostream>

using namespace std;

class Number {
private:
  int num;

public:
  void read_num(int num) { this->num = num; }

  int get_num() { return num; }
};

class Square : public Number {
public:
  int calc_sq() {
    int n = get_num();
    return n * n;
  }
};

class Cube : public Number {
public:
  int calc_cb() {
    int n = get_num();
    return n * n * n;
  }
};

int main() {
  Square n1;
  Cube n2;

  int num;

  cout << "Enter the number: ";
  cin >> num;

  n1.read_num(num);
  n2.read_num(num);

  cout << "Square is: " << n1.calc_sq() << endl;
  cout << "Cube is: " << n2.calc_cb() << endl;

  return 0;
}