C++ program to simulate the system using circular queue using array.
Problem Statement:-
Pizza parlor accepting maximum M orders. Orders are served in first come first served basis. Order once placed cannot be cancelled. Write C++ program to simulate the system using circular queue using array.
Code:-
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#include<iostream> | |
#include<windows.h> | |
using namespace std; | |
const int MAX=5; | |
class PizzaParlour | |
{ | |
int front,rear; | |
int orders[MAX]; | |
public: | |
PizzaParlour() | |
{ | |
front=rear=-1; | |
} | |
bool addOrder(int data); | |
void serveOrder(); | |
void display(); | |
}; | |
bool PizzaParlour::addOrder(int id){ | |
if(rear==-1) | |
{ | |
front=rear=0; | |
orders[rear]=id; | |
return true; | |
} | |
else | |
{ | |
int pos=(rear+1)%MAX; | |
if(pos==front) | |
{ | |
cout<<"\nCafe is Full.Please wait.\n"; | |
return false; | |
} | |
else | |
{ | |
rear=pos; | |
orders[rear]=id; | |
return true; | |
} | |
} | |
} | |
void PizzaParlour::serveOrder() | |
{ | |
if(front==-1) | |
{ | |
cout<<"\n No Orders in Cafe.[Cafe is Empty)\n"; | |
return; | |
} | |
else | |
{ | |
cout<<"\n Order No. "<<orders[front]<<" is processed.\n"; | |
if(front==rear) //only one order | |
{ | |
front=rear=-1; | |
} | |
else | |
{ | |
front=(front+1)%MAX; | |
} | |
} | |
} | |
void PizzaParlour::display() | |
{ | |
int i=0; | |
if(front==-1) | |
{ | |
cout<<"\nCafe is Empty.No orders.\n"; | |
return; | |
} | |
else | |
{ | |
cout<<"Order Id's: \n"; | |
for(i=front;i!=rear;i=((i+1)%MAX)) | |
{ | |
cout<<orders[i]<<" "; | |
} | |
cout<<orders[rear]; | |
} | |
} | |
void intro() | |
{ char name[50]={"\n Vaibhav Cafe \n"}; | |
for(int i=0;name[i]!='\0';i++) | |
{ | |
Sleep(50); | |
cout<<name[i]; | |
} | |
} | |
int main() | |
{ | |
int ch,id=0; | |
PizzaParlour q; | |
do | |
{ | |
cout<<"\n-----------------"; | |
intro(); | |
cout<<"-----------------"; | |
cout<<"\n****Menu*****\n"; | |
cout<<"1. Accept order\n"; | |
cout<<"2. Serve order\n"; | |
cout<<"3. Display orders\n"; | |
cout<<"4. Exit"; | |
cout<<"\nChoice: "; | |
cin>>ch; | |
switch(ch) | |
{ | |
case 1: | |
id++; | |
if(q.addOrder(id)) | |
{ | |
cout<<"Thank you for order.Order id is : "<<id; | |
} | |
else | |
{ | |
id--; | |
} | |
break; | |
case 2: q.serveOrder(); | |
break; | |
case 3: q.display(); | |
break; | |
} | |
}while(ch!=4); | |
cout<<"\nThank You.Keep Visiting."; | |
} |
No comments: