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Theater Reservation Assignment Help

NakidHoboe (10)
Hi Guys i'm here to bother you guys again, I think i'm learning a lot thanks to you guys. My teacher assigned this theater reservation system project with the following guidelines.

In this assignment you will implement a seat reservation system for a theater. The seats in the theater will be represented with a two dimensional array. The closer the seats are to the stage, the more expensive the seats are. Moreover, within a row, the seats at the center shall be more expensive. For this assignment, we will use a simple algorithm to assign costs to seats. The seats in one row cost $10 more than the seats in the previous row. Within a row of n seats, the first and last n/4 seats should be $5 cheaper than the rest of the seats.

To do so, create a header file TheaterReservationSystem.h having the following:

· Two constants: ROWS and SEATS_PER_ROW.

· A function prototype int calculateCost(int row, int seat). This function will calculate the cost of the seat based on the row and seat number as described above.

· A function prototype bool reserveSeat(int cost). This function will reserve the first available seat of the specified cost if there is one. If the program finds a seat of the specified cost, the function shall return true. Otherwise, the function shall return false.

· A function prototype void displaySeatsCost(). This function will print to the standard output a matrix containing the cost of the seats.

· A function prototype void displaySeats(). This function will print to the standard output a matrix showing which seats are reserved and which seats are not available.

· Create a source file TheaterReservationSystem.cpp that implements the functions defined in the header file. In the source file, declare a global variable seats of type bool[][]. This will be the array that indicates whether a seat is sold or not.



Create a driver file TheaterReservationDriver.cpp. In this file display the following menu:

here is what I have so far and for some reason I cant get it to compile. If you guys could take a look and see what I am doing wrong id appreciate it a bunch

This is The header File 
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#ifndef THEATERRESERVATIONSYSTEM_H
#define	THEATERRESERVATIONSYSTEM_H

#define ROWS 4
#define SEATS_PER_ROW 6
#define	MINSEATCOST 10

int calculateCost (int row, int seat);
bool reserveSeat (int cost);
bool reserveBestSeat (int lowestCost, int highestCost);
void displaySeatCost();
void displaySeats ();
int menu();

#endif


Here is My functions .cpp
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#include <cstdlib>
#include <iostream>
#include "theaterReservationSystem.h"
using namespace std;

int costMatrix [ROWS][SEATS_PER_ROW];
bool available [ROWS][SEATS_PER_ROW];

int calculateCost(int row, int seat)
{
    int howfar = (ROWS-1) - row;
    return (costMatrix[ROWS-1][seat] + (howfar*10));

}

bool reserveSeat (int cost)
{
    available = new bool*[ROWS];
    for (int i=0; i<ROWS; i++)
        available[i] = new bool[SEATS_PER_ROW];
    for (int i=0; i<ROWS; i++)
        for (int j=0; j<SEATS_PER_ROW; j++)
           available[ROWS][SEATS_PER_ROW] = true;

		costMatrix = new int*[ROWS];
		for (int i=0; i<ROWS; i++)
			costMatrix[i] = new int[SEATS_PER_ROW];
                        
		int spb4 = SEATS_PER_ROW/4;	

		for (int i=0; i<spb4; i++)
			costMatrix[ROWS-1][i] = MINSEATCOST;

		for (int i=spb4; i<(SEATS_PER_ROW-spb4); i++)
			costMatrix[ROWS-1][i] = (MINSEATCOST+5);

		for (int i=(SEATS_PER_ROW-spb4); i<SEATS_PER_ROW; i++)
			costMatrix[ROWS-1][i] = MINSEATCOST;
                
		for (int i=(ROWS-2); i>=0; i--)
			for (int j=0; j<SEATS_PER_ROW; j++)
				costMatrix[i][j] = costMatrix[i+1][j] + 10;
}

bool reserveBestSeat (int lowestCost, int highestCost)
{
    int closerRow = (ROWS - (highestCost/MINSEATCOST));
    int fartherRow = (ROWS - (lowestCost/MINSEATCOST));
    for (int i=closerRow; i<=fartherRow; i++) 
    {
        int bestSeat = -1;
        for (int j=0; j<SEATS_PER_ROW; j++)
        {
            if ((costMatrix[i][j] <= highestCost && costMatrix[i][j] >= lowestCost) && available[i][j])
            {
                if (bestSeat == -1) 
                {
                    bestSeat = j;
		}
		else
                {
                    if (costMatrix[i][j] > costMatrix[i][bestSeat])
                    {
                        bestSeat = j;
                        break;
                    }
                }
             }
        }
	if (bestSeat != -1)
        {
            available[i][bestSeat] = false;
            return true;
        }
    }
    return false;
}

void displaySeatCost()
{
    for (int i=0; i<ROWS; i++) 
    {
        for (int j=0; j<SEATS_PER_ROW; j++)
        {
            cout << costMatrix[ROWS][SEATS_PER_ROW] << "\t";
        }
        cout << endl;
    }

}

void displaySeats ()
{
    for (int i=0; i<ROWS; i++) 
    {
        for (int j=0; j<SEATS_PER_ROW; j++)
        {
            if (available[ROWS][SEATS_PER_ROW])
            {
                cout << "A ";
            }
            else
            {
                cout << "R ";
            }
        }
        cout << endl;
    }
}

int menu()
{
    int choice;
    cout << "Enter 1 to reserve a seat" << endl;
    cout << "Enter 2 to reserve the best seat available" << endl;
    cout << "Enter 3 to display seats cost" << endl;
    cout << "Enter 4 to display reservations" << endl;
    cout << "Enter 5 to quit" << endl;
    cout << "Choice? ";
    cin >> choice;
        
    return choice;
}


The Driver.cpp
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#include <cstdlib>
#include <iostream>
#include "theaterReservationSystem.h"
using namespace std;

int main()
{
    const int seats = 4, seatsPerRow = 4;
    //theaterReservationSystem (seats, seatsPerRow);
    int choice, cost, lowerCost, higherCost;
    do 
    {
        choice = menu();
        switch (choice) 
        {
            case 1:
            cout << "Cost? ";
            cin >> cost;
            if (reserveSeat(cost))
            {
                cout << "Seat Reserved Successfully." << endl;
            }
            else
            {
            cout << "Sorry! no seat available with that cost." << endl;
            }
            break;

            case 2:
            cout << "Lower Cost in range? ";
            cin >> lowerCost;
            cout << "Higher Cost in range? ";
            cin >> higherCost;
            if (reserveBestSeat(lowerCost, higherCost))
            {
                cout << "Seat Reserved Successfully." << endl;
            }
            else
            {
                cout << "Sorry! no seat available within that cost range." << endl;
            }
            break;

            case 3:
            displaySeatCost();
            break;

            case 4:
            displaySeats();
            break;
        }
    } 
    
        while (choice != 5);
        return 0;
}


Sorry for the super long post been pulling my hair out for days, I don't know what wrong I have tried everything from the files the teacher gave for "hints" to looking online.

Thanks a Bunch
firedraco (6243)
When you can't compile, you should get errors. Please post those as well so we can help you figure them out.
NakidHoboe (10)
Oh sorry, I guess that would have been good to post, here they are.

theaterReservationSystem.cpp:18: error: incompatible types in assignment of 'bool**' to 'bool [4][6]'
theaterReservationSystem.cpp:20: error: incompatible types in assignment of 'bool*' to 'bool [6]'
theaterReservationSystem.cpp:25: error: incompatible types in assignment of 'int**' to 'int [4][6]'
theaterReservationSystem.cpp:27: error: incompatible types in assignment of 'int*' to 'int [6]'

thanks again.
firedraco (6243)
Lines 6/7 already declare the arrays to be a static size. Therefore you cannot use new later to resize them or anything.
NakidHoboe (10)
Thank you, i removed the new statement just to see if it would compile and that brought upon a whole new set of errors.

theaterReservationSystem.cpp:18: error: expected primary-expression before 'bool'
theaterReservationSystem.cpp:18: error: expected `;' before 'bool'
theaterReservationSystem.cpp:20: error: expected primary-expression before 'bool'
theaterReservationSystem.cpp:20: error: expected `;' before 'bool'
theaterReservationSystem.cpp:25: error: expected primary-expression before 'int'
theaterReservationSystem.cpp:25: error: expected `;' before 'int'
theaterReservationSystem.cpp:27: error: expected primary-expression before 'int'
theaterReservationSystem.cpp:27: error: expected `;' before 'int'

and now i dont understand what it is that it wants
firedraco (6243)
You can't just remove the new and expect to have it work. Those entire loops that new the array can be removed; you have already decided the array size when you declared it like that.
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