What does a data structure queue mean?

 

A data structure used to store the data is called a queue.

A queue is an ordered list where items are added at one end, known as the rear, and removed at the other end, known as the front.

The sequence in which data arrives in a queue is crucial.The first thing that is deleted is also the first element that is added.Hence, it is also known as Last in Last out (LILO) or First in First out (FIFO).

EnQueue and DeQueue are the terms used to describe the addition and deletion of elements in queues, respectively.

Underflow is the term for dequeueing an empty queue, and enqueueing Overflow refers to an item in a queue that is overflowing.

A linear collection of several data kinds that allows addition at one end and deletion at the other is referred to as a queue. The queue ends remain open, unlike the endpoints of any other data structure, enabling it to have various functionalities at both ends. The characteristics of a queue in real life are exactly mirrored by this queue data structure. Let's examine one instance.

 The box office ticket window

Customers can only enter these ticket counters from the back and can only exit from the front. Barricades have been used to block all alternative routes. In addition, the person who joins the ticket line first will leave the line first. (vice-versa).

The same logic applies to queues in computer science as it does for executing data element insertion and deletion. The FIFO (First In First Out) concept is the name given to this idea.

The following operations are included in the fundamental queue structure:

 Inserting elements into the queue with enqueue().

Dequeue() - Takes items out of the queue.

Peek() - Obtains the data element present at the queue's front node without removing it.

isFull() checks queue is full or not.

isEmpty() determines whether the queue is empty.

 

Conclusion

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