What is a queue implementation in programming?

What is a queue implementation in programming?

A queue implementation is a data structure that follows the First In First Out (FIFO) principle, where the first element added is the first to be removed.

Can you explain how to implement a queue in Python?

Sure! You can implement a queue using a list or the collections.deque module. Would you like to see an example?

Yes, please provide an example using collections.deque.

Here's a simple example:

from collections import deque

queue = deque()

# Adding elements
queue.append('A')
queue.append('B')

# Removing elements
first = queue.popleft()  # Removes 'A'

What are the advantages of using deque over a list for a queue?

The main advantage of using deque is that it provides O(1) time complexity for appends and pops from both ends, while lists can be O(n) for pops from the front.