Hierarchy

#include "stdafx.h"
#include <stdio.h>
#include <conio.h>
#include <iostream>
#include <fstream>
#include <string>


using namespace std;

class Item {
public:
    string item;
    Item(string i) {
        this -> item = i;
    }
    virtual string getType() { return "Standard item."; }
    virtual string build() = 0;
};

class Mechanism : Item {
public:

    string build() {
        cout << "Builded" << endl;
    }


};

class Product : Mechanism {
public:
    string getType()  {
        return "Product";
    }
    string build() {
        cout << "Product builded" << endl;
    }
};

class Node : Mechanism {
public:
    string getType() {
        return "Node";
    }
};

int main()
{

    _getch();
    return 0;
}