11.4 Hierarchical Inheritance

#include <iostream>
using namespace std;

class Base{
protected:
    int x,y;
public:
    void get()
    {
        cout<<"Enter two numebrs"<<endl;
        cin>>x>>y;
    }
};

class D_1 : public Base
{
public:
    void sum()
    {
        cout<<"sum is "<<x+y<<endl;
    }
};

class D_2 : public Base{
public:
    void product()
    {
        cout<<"Product is "<<x*y<<endl;
    }
};

int main()
{
    D_1 a;
    D_2 b;
    a.get();
    a.sum();
    b.get();
    b.product();
    return 0;
}

/*
Output
Enter two numebrs
4 4
sum is 8
Enter two numebrs
33 3
Product is 99
*/