Question

Hotel Occupancy

C++ Only

Program Description

Write a program that calculates the occupancy rate for a hotel. The program should read its data from a file named "hotel.dat". The first line of this file will be a single integer specifying the number of floors in the hotel. Each of the remaining (N) lines will have two integers; the number of rooms on that floor and the number of occupied rooms on that floor.

Your program should display the following:

• How many rooms the hotel has,
• How many rooms are occupied,
• How many are unoccupied, and
• The percentage of rooms that are occupied.

Notes

1. Your program should be named hotel.cc.
2. You can build this program initially to read from the keyboard, get that working, and then modify the program to read from the file.
3. You will need to create the "hotel.dat" data file.

Answer 1

If you have any doubts, please give me comment...

#include<iostream>

#include<iomanip>

#include<fstream>

using namespace std;

int main(){

    ifstream in;

    in.open("hotel.dat");

    if(in.fail()){

        cout<<"Unable to open file"<<endl;

        return 0;

    }

    int no_floors, no_rooms, no_occupied_rooms, total_rooms, total_occupied_rooms;

    int total_unoccupied_rooms;

    double percentage_occupied;

    in>>no_floors;

    for(int i=0; i<no_floors; i++){

        in>>no_floors>>no_occupied_rooms;

        total_rooms += no_floors;

        total_occupied_rooms += no_occupied_rooms;

    }

    total_unoccupied_rooms = total_rooms-total_occupied_rooms;

    percentage_occupied = (double)total_occupied_rooms/total_rooms;

    cout<<setprecision(2)<<fixed;

    cout<<"Total rooms the hotel has "<<total_rooms<<endl;

    cout<<"Total rooms occupied "<<total_occupied_rooms<<endl;

    cout<<"Total rooms unoccupied "<<total_unoccupied_rooms<<endl;

    cout<<"Percentge of rooms occupied "<<percentage_occupied<<"%"<<endl;

    return 0;

}