Array implementation of Circular Queue - Beginners / Lab Assignments Source Code in C++

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Home » C++ Home » Beginners / Lab Assignments Home » Array implementation of Circular Queue

A D V E R T I S E M E N T

Title	Array implementation of Circular Queue
Author	Mohit Sethi
Author Email	mohitsethi9211 [at] gmail.com
Description	This program in CPP, demonstrates the array implementation of Circular Queue.
Category	C++ » Beginners / Lab Assignments
Hits	390095
Code	Select and Copy the Code
Code: #include<iostream.h> #include<stdlib.h> #include<stdio.h> #include<conio.h> // Defining class CQUEUE class cqueue { int q[10],num,front,rear; public : cqueue(); void insert(); void remove(); void menu(); void display(); }; cqueue :: cqueue() { front=rear=0; } void cqueue :: insert() { if(((rear+1)%10)==front) { cout<<"Queue is full "; } else { cout<<"Please enter a number : "; cin>> q[rear]; rear=(rear+1)%10; } } void cqueue :: remove() { if(rear==front) { cout<<"Queue is empty "; } else { int num=q[front]; cout<<"You deleted "<<num<<" "; front=(front+1)%10; getch(); } } void cqueue::display() { int i=front; if(front==rear) { cout<<"Queue is empty, No elements to display !!!!!! "; } else { cout<<"Queue's elements are : "; cout<<"Front = "; while( i!=rear) { if(i==(rear-1)) cout<<"Rear = "; cout<<q[i]<<" "; i=i++%10; } // end while. }// end elseif. getch(); } void cqueue :: menu() { int ch=1; clrscr(); while (ch) { clrscr(); cout<<"Enter your Choice 1 : insert 2 : remove 3 : display 0 : exit "; cin >>ch; switch (ch) { case 1 : insert(); break; case 2 : remove(); break; case 3 : display(); break; case 0 : exit(0); } } } void main() { cout<<"Program to demonstrate Circular Queue "; cqueue q1; q1.menu(); }

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