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

Addressing modes, Compare zero-address, one-address, two-address, and three...

Compare zero-address, one-address, two-address, and three-address machines by writing programs to compute: Y = (A – B X C) / (D + E X F) for each of the four machines. The inst

Efficient way of storing two symmetric matrices, Explain an efficient way o...

Explain an efficient way of storing two symmetric matrices of the same order in memory. A n-square matrix array is said to be symmetric if a[j][k]=a[k][j] for all j and k. For

Advantage of list over arrays, The advantage of list over Arrays is flexibi...

The advantage of list over Arrays is flexibility. Over flood is not a problem until the computer memory is bushed. When the individual record are quite large, it may be difficult t

Representation of linked list in memory, Representation of Linked list in M...

Representation of Linked list in Memory:- Each node has an info part and a pointer to the next node also known as link. The number of pointers is two in case of doubly linked

Operations on b-trees, Operations on B-Trees Given are various operatio...

Operations on B-Trees Given are various operations which can be performed on B-Trees: Search Create Insert B-Tree does effort to minimize disk access and t

Define tractable and intractable problems, Define tractable and intractable...

Define tractable and intractable problems Problems that can be solved in polynomial time are known as tractable problems, problems that cannot be solved in polynomial time are

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

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

Searching, Searching is the procedure of looking for something: Finding one...

Searching is the procedure of looking for something: Finding one piece of data that has been stored inside a whole group of data. It is frequently the most time-consuming part of m

Collision resolution techniques, complete information about collision resol...

complete information about collision resolution techniques

Program segment for quick sort, Illustrates the program segment for Quick s...

Illustrates the program segment for Quick sort. It uses recursion. Program 1: Quick Sort Quicksort(A,m,n) int A[ ],m,n { int i, j, k; if m { i=m; j=n+1; k

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