Question

Using C not C++, Write a program that can be used by a small theater to sell tickets for performances. The theater’s auditorium has 15 rows of seats, with 30 seats in each row. The program should display a screen that shows which seats are available and which are taken. For example, the following screen shows a chart depicting each seat in the theater. Seats that are taken are represented by an * symbol, and seats that are available are represented by a # symbol:

Seats 123456789012345678901234567890

Row 1 ***###***###*########*****####

Row 2 ####*************####*******##

Row 3 **###**********########****###

Row 4 **######**************##******

Row 5 ********#####*********########

Row 6 ##############************####

Row 7 #######************###########

Row 8 ************##****############

Row 9 #########*****############****

Row 10 #####*************############

Row 11 #**********#################**

Row 12 #############********########*

Row 13 ###***********########**######

Row 14 ##############################

Row 15 ##############################

Here is a list of tasks this program must perform: • When the program begins, it should ask the user to enter the seat prices for each row. The prices can be stored in a separate array. (Alternatively, the prices may be read from a file.) • Once the prices are entered, the program should display a seating chart similar to the one shown above. The user may enter the row and seat numbers for tickets being sold. Every time a ticket or group of tickets is purchased, the program should display the total ticket prices and update the seating chart. • The program should keep a total of all ticket sales. The user should be given an option of viewing this amount. • The program should also give the user an option to see a list of how many seats have been sold, how many seats are available in each row, and how many seats are available in the entire auditorium. Input Validation: When tickets are being sold, do not accept row or seat numbers that do not exist. When someone requests a particular seat, the program should make sure that seat is available before it is sold.

Answer 1

Here, I have following program code as shown below with sample output.

Code:

// declare header file

#include<iostream>

#include<iomanip>

using namespace std;

// define a constant variable

const int ROWS=15;

const int SEATS=30;

// method definitions

void Firstallary(char gallary[][SEATS]);

void Show(char gallary[][SEATS]);

bool isValid(int ,int);

int Selection();

void DisplayPrice(int totalPrice);

void displayStatistics(char gallary[][SEATS],int prices[],int sold[],int totalPrice);

// main function

int main()

{

// declare array variable

   int Cost[ROWS]={10,20,30,40,50,60,70,80,90,100,110,120,130,140,150};

   int sold[ROWS]={0};

   char InGallary[ROWS][SEATS];

// calls the method

Firstallary(InGallary);

// declare required variables

   int rows;

   int seatNo;

   int SoldSeats=0;

   int Totalcost=0;

   char choice='y';

// use loop until the condition

   while(tolower(choice)=='y')

   {

     // make selection

       switch(Selection())

       {

           

           // for case 1

       case 1:

       do

       {

           cout<<"Enter Row Number : ";

           cin>>rows;

           cout<<"Enter Seat Number : ";

           cin>>seatNo;

          // checks

           if(isValid(rows,seatNo))

           {

             // make increments

               sold[rows]++;

               // add

               Totalcost+=Cost[rows-1];

               // assign asterik

               InGallary[rows-1][seatNo-1]='*';

               // calls the method

               Show(InGallary);

           }

           else

               cout<<"Error: Invalid seat number ."<<endl;

       }while((rows<1 ||rows>15) && (seatNo<1 || seatNo>30));

       break;

       case 2:

           // calls the method

           DisplayPrice(Totalcost);

           break;

       case 3:

         // calls the method

           displayStatistics(InGallary,Cost,sold,Totalcost);

           break;

       }

       cout<<"Do you Want to Continue : [y] for yes or [n] for no : ";

       cin>>choice;

   }

   return 0;

}

void displayStatistics(char gallary[][SEATS],int prices[],int sold[],int totPrice)

{

   int Total_Seat=ROWS*SEATS;

   int Total_Seats_Sold=0;

   for(int row=0;row<ROWS;row++)

   {

       Total_Seats_Sold+=sold[row];

   }

   cout<<"\tSeats Sold : "<<Total_Seats_Sold<<endl;

   cout<<"\tSeats Available in each row : "<<endl;

   for(int row=0;row<ROWS;row++)

   {

       cout<<"Row "<<(row+1)<<setw(10)<<SEATS-sold[row]<<endl;

   }

   cout<<"Seats Available in Auditorium : "<<(Total_Seat-Total_Seats_Sold)<<endl;

   cout<<"Total Price of Tickets Sold $"<<totPrice<<endl;

}

void DisplayPrice(int TotalPrices)

{

   cout<<"Total amount of seats sold : $"<<TotalPrices<<endl;

}

int Selection()

{

   int select;

   cout<<"\t***Menu***"<<endl<<endl;

   cout<<"\t1.Select Seats"<<endl;

   cout<<"\t2.Show Total Amount of Sold"<<endl;

   cout<<"\t3.Show Statistics of Sold Tickets "<<endl;

   cout<<"Enter your Choice : ";

   cin>>select;

   return select;

}

bool isValid(int rowNo,int seatNo)

{

   return (rowNo>=1 && rowNo<=15) && (seatNo>=1 || seatNo<=30);

}

void Firstallary(char Gallary[][SEATS])

{

   for(int row=0;row<ROWS;row++)

   {

       for(int s=0;s<SEATS;s++)

           Gallary[row][s]='#';

   }

}

void Show(char gallary[][SEATS])

{

   cout<<"\t Example "<<endl;

   cout<<"\tSeats"<<endl;

   cout<<setw(10);

   for(int se=1;se<=3;se++)

   {

       for(int n=1;n<=9;n++)

           cout<<n;

       cout<<"0";

   }

   cout<<endl;

   for(int r=0;r<ROWS;r++)

   {     

       if((r+1)<10)

           cout<<left<<setw(4)<<"Rows"<<left<<(r+1)<<right<<setw(5);     

       else

           cout<<left<<setw(4)<<"Rows"<<left<<(r+1)<<right<<setw(4);     

       for(int s=0;s<SEATS;s++)

           cout<<gallary[r][s];

       cout<<endl;

   }

}