Queues always follow the first-in, first-out order. You can only remove the front element in a dequeue operation. For instance, after the dequeue operation, the queue used in the previous example will look like this. In the dequeue operation, we remove the front element of the queue just like a person gets out of the queue after receiving their ticket from the ticket counter.Īfter a dequeue operation, the front element is removed from the queue, and the element behind the front element becomes the new front element. Remove an Element From the Queue: The Dequeue Operation It is essential to note that we can add elements only at the rear of a queue. The newly added element always becomes the rear element.įor instance, if we add the number 7 to the queue given above, the queue will look like the below. In the enqueue operation, we add the element into the queue just like a person joins a queue at a ticket counter. 1,2,3,4,5,6Īdd an Element to the Queue: The Enqueue Operation 1 is the front element, while 6 is the rear element. Similarly, the last element of the queue is called the rear element.įor instance, consider the following sequence of numbers as a queue. The first element in the queue is called the front element. Let us first discuss the general concept behind all the operations, and after that, we will implement the queue operations using various constructs. In a queue, we can perform different operations. This article will discuss three different ways for queue implementation in Python. We use queues in Python to perform first-in, first-out (FIFO) operations. Most Efficient Queue Implementation in Python.Queue Implementation Using the Collections Module in Python.Queue Implementation Using Linked Lists in Python.Queue Implementation Using Lists in Python. Remove an Element From the Queue: The Dequeue Operation.Add an Element to the Queue: The Enqueue Operation.
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