Where is the queue dequeuing operation implemented?

This article will explain in detail where the queuing operation is realized. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

The dequeuing operation of the queue is implemented in the head of the queue. Queue is a special linear table, which is special in that it only allows delete operation at the front end of the table and insert operation at the back end of the table. Like the stack, queue is a kind of linear table with limited operation.

Detailed introduction:

Queue is a special linear table, which is special in that it only allows deletion at the front end of the table (front) and insert operation at the back end of the table (rear). Like the stack, queue is a linear table with limited operations. The end of the insert operation is called the end of the queue, and the end of the delete operation is called the head of the line. When there are no elements in the queue, it is called an empty queue.

The data element of a queue is also called a queue element. Inserting a queue element into the queue is called queuing, and removing a queue element from the queue is called dequeuing. Because queues are only allowed to be inserted at one end and deleted at the other end, only the earliest elements that enter the queue can be deleted from the queue first, so the queue is also known as the first-in-first-out (FIFO-first in first out) linear table.

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