Array implementation of a circular queue, Data Structure & Algorithms

Assignment Help:

A circular queue can be implemented through arrays or linked lists. Program 6 gives the array implementation of any circular queue.

Program 6: Array implementation of any Circular queue

include "stdio.h"

void add(int);

void deleteelement(void);

int max=10;         /*the maximum limit for queue has been set*/

static int queue[10];

int front=0, rear=-1; /*queue is initially empty*/

void main()

{

int choice,x;

printf ("Enter # for insertion & $ for removal of front the queue and * for exit");

printf("Enter your choice");

 scanf("%d",&choice);

switch (choice)

{

case 1 :

printf ("Enter element for insertion in queue:");

scanf("%d",&x);

add(x);

break;

case 2 :

deleteelement();

break;

}

}

void add(int y)

{

if(rear == max-1)

rear = 0;

else

rear = rear + 1;

if( front == rear && queue[front] != NULL)

printf("Queue Overflow");

else

queue[rear] = y;

}

void deleteelement()

{

int deleted_front = 0;

if (front == NULL)

printf("Error - Queue empty");

else

{

deleted_front = queue[front];

queue[front] = NULL;

if (front == max-1)

front = 0;

else

front = front + 1;

}

}


Related Discussions:- Array implementation of a circular queue

Explain stacks, What are stacks? A stack is a data structure that organ...

What are stacks? A stack is a data structure that organizes data similar to how one organizes a pile of coins. The new coin is always placed on the top and the oldest is on the

What are the different ways of representing a graph, What are the different...

What are the different ways of representing a graph? The different ways of representing a graph is: Adjacency list representation: This representation of graph having of an

Representation of data structure in memory, Representation of data structur...

Representation of data structure in memory is known as: Abstract data type

Depth-first search (dfs) , In this respect depth-first search (DFS) is the...

In this respect depth-first search (DFS) is the exact reverse process: whenever it sends a new node, it immediately continues to extend from it. It sends back to previously explore

Illustrate the back face detection method, Illustrate the Back Face Detecti...

Illustrate the Back Face Detection Method A single polyhedron is a convex solid, which has no external angle between faces less  than 180° and there is a simple object space me

Physical database design and sql queries, In this part, students are allowe...

In this part, students are allowed to implement the following simplifications in their table and data design. o Availability for the beauty therapists don't have to be considere

Design and test a reference array, Instructions Design and test a r...

Instructions Design and test a reference array. Reference array stores the references to user supplied objects of different types. Just think it as a heterogeneous array wh

Write the algorithm to find input and output value, This algorithm inputs 5...

This algorithm inputs 5 values and outputs how many input numbers were positive and how many were negative. Data to be used: N = 1, -5, 2, -8, -7

Applications in file systems of avl trees, 1. In computer science, a classi...

1. In computer science, a classic problem is how to dynamically store information so as to let for quick look up. This searching problem arises frequently in dictionaries, symbol t

Data type, Data type An implementation of an abstract data type on a...

Data type An implementation of an abstract data type on a computer. Therefore, for instance, Boolean ADT is implemented as the Boolean type in Java, and bool type in C++;

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd