HotelPrices.cpp

#include <iostream>
#include <vector>

using namespace std;

// problem : https://www.hackerrank.com/challenges/hotel-prices/problem



class HotelRoom {
public:
    HotelRoom(int bedrooms, int bathrooms)
        : bedrooms_(bedrooms), bathrooms_(bathrooms) {}

    // soultion =========================================================
    virtual int get_price() {
        return (50 * bedrooms_ + 100 * bathrooms_);
    }
    // ==================================================================


private:
    int bedrooms_;
    int bathrooms_;
};

class HotelApartment : public HotelRoom {
public:
    HotelApartment(int bedrooms, int bathrooms)
        : HotelRoom(bedrooms, bathrooms) {}

    int get_price() {
        return (HotelRoom::get_price() + 100);
    }
};

// just main()
void runCase() {
    int n;
    cin >> n;
    vector<HotelRoom*> rooms;
    for (int i = 0; i < n; ++i) {
        string room_type;
        int bedrooms;
        int bathrooms;
        cin >> room_type >> bedrooms >> bathrooms;
        if (room_type == "standard") {
            rooms.push_back(new HotelRoom(bedrooms, bathrooms));
        }
        else {
            rooms.push_back(new HotelApartment(bedrooms, bathrooms));
        }
    }

    int total_profit = 0;
    for (auto room : rooms) {
        total_profit += room->get_price();
    }
    cout << total_profit << endl;

    for (auto room : rooms) {
        delete room;
    }
    rooms.clear();

    return;
}