movie theater seating

[jessicamaria]

# include <iostream>
# include <iomanip>
using namespace std;

void seats( double [] , int);
void mapSeats();

int main()
{
	const int rowNum = 20;
	double rowValue[rowNum]; //array to hold row pices
	char selection;
	int row2, col2;
	const char TAKEN = '#';//seats taken
	const char EMPTY = '*';//seats free
	const int row = 20;//number of rows
	const int col = 15;//number of col
	char map[row][col];//array to hold seat chart 


	
	for(int i= 0;i<row;i++)//initiating array 
	{
		for (int j=0;j<col;j++)
		{
			map[i][j]=EMPTY;
		}
	}

	mapSeats();

	seats(rowValue, rowNum);//ask user to enter price of each row
	cout << endl;
	
	do
		{
			cout << "MOVIE THEATER MENU" << endl;
			cout << "------------------" << endl;
			cout << "1) Sell a ticket" << endl;
			cout << "2) Total sell and exit" << endl;
			cout << "Please make a selection: ";
			cin >> selection;
			
			if(selection =='1')
			{
				cout << "Please enter a row number and a seat number for the ticket: " ;
				cout << "Row # :" ;
				cin >> row2;
				cout << endl;
				cout << "Seat # :" ;
				cin >> col2;
				cout << endl;

				// Check if seat is free
			if(map[row2][col2] == TAKEN)
			{
				cout << "This seat is taken! Try another one. \n";
				continue; // start the loop again
			}
			else // and if it is - sell the ticket
				map[row2][col2]=TAKEN;
			// Add the next loop to immediately see the effects:
			for (int i = 0; i < row; i++)
			{
				for(int j = 0; j < col; j++)
				{
					cout << map[i][j];
				}
				cout << endl;
			}


			}
			else if(selection =='2')
			{
				cout << "TOTAL TICKETS SOLD: " << endl;
				cout << "TOTAL REVENUE: ";
			}
			else if(selection != '1' || selection !='q' || selection !='Q')
			{
				cout << "Invalid selection." << endl;
			}
		}while(selection != '1' || selection !='q' || selection !='Q');
	

	system("PAUSE");
	return 0;
}


void seats(double rowPrice[], int row)
{
	int sum;
	cout << "Please enter a ticket price for each row." << endl;
	
	for(int i = 0 ; i < row; i++)
	{
		cout << "Row # " << i+1 << ": " ;
		cin >> rowPrice[i];	
	}
}

void mapSeats()
{
	const char TAKEN = '#';//seats taken
	const char EMPTY = '*';//seats free
	const int rw=20;
	const int cl=15;

	cout << "Seats " ;
	for(int k = 0 ; k <15;k++) //loop to display nums 0 to 14
	{
		cout << fixed<< setw(2) << " " << k ;
	}

	for(int i=0;i<rw;i++)//making array display what's in it
	{
		cout << endl<< "Row " << i;
		for(int j=0;j<cl;j++)
		{
			cout << fixed<< setw(2) << "" << EMPTY;
		}
	}
	cout << endl;
}

// I am trying to produce the total number of tickets sold and the total revenue from all tickets sold to be displayed at menu option (2), but i can't figure out how. can someone show me how please?

[MikeyBoy]

1) Look at the conditions on lines 79 ad 83. Under what circumstances would you expect that condition to be false?

2) To answer your question, you want to keep a running total of the number of seats sold, and the revenue. Each time a ticket is sold, update those two values. When the user selects option 2, print those values out.