fds9.txt

#include <iostream>
#include<stdlib.h>
using namespace std;
class node
{
 public:
 node* next;
 node* prev;
 int seat;
 string id;
 int status;
};
class cinemax
{
 public:
 node* head,* tail ,* temp;
 cinemax()
 {
 head=NULL;
 }
 void create_list();
 void display();
 void book();
 void cancel();
 void avail();
};
void cinemax::create_list()
{
 int i=1;
 temp=new node;
 temp
->seat=1;
 temp
->status=0;
 temp
->id="null";
 tail=head=temp;
 for(int i=2;i<=70;i++)
 
{
 node *p;
 p= new node;
 
p
->seat=i;
 
p
->status=0;
 
p
->id="null";
 tail
->next=p;
 
p
->prev=tail;
 tail=p;
 tail
->next=head;
 head
->prev=tail;
 
}
}
void cinemax::display() {
 int r=1;
 node* temp;
 temp=head;
 int count=0;
 cout<<"
\
n------------------------------------------------------------------------------------
\n";
 cout<<" Screen this way 
\n";
 cout<<"------------------------------------------------------------------------------------
\n";
 while(temp
->next!=head)
 
{
 if(temp
->seat/10==0)
 cout<<"S0"<<temp
->seat<<" :";
 else
 cout<<"S"<<temp->seat<<" :";
 if(temp->status==0)
 cout<<"|___| ";
 else
 cout<<"|_B_| ";
 count++;
 if(count%7==0)
 {
 cout<<endl;
 r++;
 }
 temp=temp->next;
 }
 cout<<"S"<<temp->seat<<" :";
 if(temp->status==0)
 cout<<"|___| ";
 else
 cout<<"|_B_| ";
}
void cinemax::book()
{ 
 int x;
 string y;
 label:
 cout<<"\n\n\nEnter seat number to be booked\n";
 cin>>x;
 cout<<"Enter your ID number\n";
 cin>>y;
 if(x<1||x>70)
 {
 cout<<"Enter correct seat number to book (1-70)\n";
 goto label;
 }
 node *temp;
 temp=new node;
 temp=head;
 while(temp->seat!=x)
 {
 temp=temp->next;
 }
 if(temp->status==1)
 cout<<"Seat already booked!\n";
 else
 {
 temp->status=1;
 temp->id=y;
 cout<<"Seat "<<x<<" booked!\n";
 }
}
void cinemax::cancel()
{
 int x;
 string y;
 label1:
 cout<<"Enter seat number to cancel booking\n";
 cin>>x;
 cout<<"Enter you ID\n";
 cin>>y;
 if(x<1||x>70)
 {
 cout<<"Enter correct seat number to cancel (1-70)\n";
 goto label1;
 }
 node *temp;
 temp=new node;
 temp=head;
 while(temp->seat!=x)
 {
 temp=temp->next;
 }
 if(temp->status==0)
 {
 cout<<"Seat not booked yet!!\n";
 }
 else
 {
 if(temp->id==y)
 {
 temp->status=0;
 cout<<"Seat Cancelled!\n";
 }
 else
 cout<<"Wrong User ID !!! Seat cannot be cancelled!!!\n";
 }
}
void cinemax::avail()
{
 int r=1;
 node* temp;
 temp=head;
 int count=0;
 cout<<"\n\n\n\n";
 cout<<"\n------------------------------------------------------------------------------------
\n";
 cout<<" Screen this way \n";
 cout<<"------------------------------------------------------------------------------------\n";
 while(temp->next!=head)
 {
 {
 if(temp->seat/10==0)
 cout<<"S0"<<temp->seat<<" :";
 else
 cout<<"S"<<temp->seat<<" :";
 if(temp->status==0)
 cout<<"|___| ";
 else if(temp->status==1)
 cout<<" ";
 count++;
 if(count%7==0)
 {
 cout<<endl;
 }
 }
 temp=temp->next;
 }
 if(temp->status==0)
 {
 cout<<"S"<<temp->seat<<" :";
 if(temp->status==0)
 cout<<"|___| ";
 }
}
int main()
{ 
 cinemax obj;
 obj.create_list();
 int ch;
 char c='y';
 while(c=='y')
 {
 obj.display();
 cout<<"\n*********************************************\n";
 cout<<" CINEMAX MOVIE THEATRE\n";
 cout<<"*********************************************\n";
 cout<<"\nEnter Choice\n1.Current SeatStatus\n2.Book Seat \n3.Available 
Seat\n4.CancelSeat\n";
 cin>>ch;
 switch(ch)
 {
 case 1:obj.display();
 break;
 case 2: obj.book();
 break;
 case 3:obj.avail();
 break;
 case 4: obj.cancel();
 break;
 default: cout<<"Wrong choice input\n";
 }
 cout<<"\nDo you want to perform any other operation : (y/n)\n";
 cin>>c;
 }
return 0;
}