HackerRank Hotel Prices solution in C++ programming

HackerRank Hotel Prices c++ solution – In this HackerRank Hotel Prices problem in C++ programming language, In this challenge, the task is to debug the existing code to successfully execute all provided test files.

The given code defines two classes HotelRoom and HotelApartment denoting respectively a standard hotel room and a hotel apartment. An instance of any of these classes has two parameters: bedrooms and bathrooms denoting respectively the number of bedrooms and the number of bathrooms in the room.

The prices of a standard hotel room and hotel apartment are given as:

• Hotel Room: 50.bedrooms + 100.bathrooms.
• Hotel Apartment: The price of a standard room with the same number bedrooms and bathrooms plus 100.

In hotel’s codebase, there is a piece of code reading the list of rooms booked for today and calculates the total profit for the hotel. However, sometimes calculated profits are lower than they should be.

Debug the existing HotelRoom and HotelApartment classes’ implementations so that the existing code computing the total profit returns a correct profit.

HackerRank Hotel Prices problem solution in C++ programming.

#include <iostream>
#include <vector>

using namespace std;

class HotelRoom 
{
    public:

        HotelRoom(int bedrooms, int bathrooms)
        : bedrooms_(bedrooms), bathrooms_(bathrooms) 
        {

        }

        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;
    }
};

int main() {
    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 0;
}