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 about hidden-surface, Explain about Hidden-surface Hidden-line...

Explain about Hidden-surface Hidden-line removal refers to wire-frame diagrams without surface rendering and polygonal surfaces with straight edges. Hidden-surface removal ref

Push and pop operations, Q. Explain that how do we implement two stacks in ...

Q. Explain that how do we implement two stacks in one array A[1..n] in such a way that neither the stack overflows unless the total number of elements in both stacks together is n.

Depth first search and breadth first search, Q. Illustrate the result of ru...

Q. Illustrate the result of running BFS and DFS on the directed graph given below using vertex 3 as source.  Show the status of the data structure used at each and every stage.

Adjacency list representation, Adjacency list representation An Adjacen...

Adjacency list representation An Adjacency list representation of Graph G = {V, E} contains an array of adjacency lists mentioned by adj of V list. For each of the vertex u?V,

Explain about the string abstract data type operations, Explain about the S...

Explain about the String Abstract data type operations Symbol ADT has no concatenation operations, but presuming we have a full-featured String ADT, symbols can be concatenated

Show that towers of hanoi is o (2n), Question 1 Discuss the advantages of ...

Question 1 Discuss the advantages of implementation checks preconditions Question 2 Write a ‘C' program to search for an item using binary search Question 3 Show that To

Explain the rgb model, RGB Model The RGB model is based on the assumpti...

RGB Model The RGB model is based on the assumption that any desired shade of colour can be obtained by mixing the correct amounts of red, green, and blue light. The exact hues

Using array to execute the queue structure, Q. Using array to execute the q...

Q. Using array to execute the queue structure, write down an algorithm/program to (i) Insert an element in the queue. (ii) Delete an element from the queue.

Representation of arrays, REPRESENTATION OF ARRAYS This is not uncommon...

REPRESENTATION OF ARRAYS This is not uncommon to determine a large number of programs which procedure the elements of an array in sequence. However, does it mean that the eleme

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