Applications of Queue

Following are some common applications of the queue data structure:

  1. Queues are used in CPU scheduling .
  2. They are used in Print spooling.
  3. They are used in Breadth-first-search.
  4. They are used in web servers to schedule incoming requests.
  5. They are used in Buffering I/O systems.

Queue in C

A queue is a linear data structure that follows the First In First Out (FIFO) order of insertion and deletion. It means that the element that is inserted first will be the first one to be removed and the element that is inserted last will be removed at last.

In this article, we’ll learn how to implement the queue data structure in the C programming language. We will also look at some of its basic operations along with their time and space complexity analysis.

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Implementation of a Queue in C

We can implement a queue in C using either an array or a linked list. In this article, we will use the array data structure to store the elements. The insertion in the queue is done at the back of the queue and the deletion is done at the front. So we maintain two index pointers front and rear pointers to keep track of the front and back of the queue. The queue consists of two basic operations enqueue which adds elements to the queue (insertion) from the rear pointer and dequeue(deletion) which removes elements from the queue through the front pointer....

Basic Operations of Queue in C

Following are the basic operations of a Queue that are used frequently to manipulate the elements present inside the queue:...

C Program To Implement a Queue

The following program demonstrates how we can implement a Queue in C:...

Applications of Queue

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Limitations of Queue

Following are the major limitation of the queue:...

Conclusion

In C, there is no build in data structure so knowing how to implement queue not only improves our efficiency in the language but also helps us to understand the queue data structure from the base. This article covered the basic implementation of the queue along with its basic operations and also discussed is limitations and referred the article with the solution to that limitation....