What are doubly linked lists?

Can you explain what a doubly linked list is?

A doubly linked list is a data structure where each node contains a reference to both the next and the previous node.

What are the advantages of using a doubly linked list over a singly linked list?

Doubly linked lists allow for easier traversal in both directions and can simplify certain operations like deletion.

Can you give me an example of how to implement a doubly linked list in Python?

Sure! Here's a simple implementation:

class Node:
    def __init__(self, data):
        self.data = data
        self.next = None
        self.prev = None

class DoublyLinkedList:
    def __init__(self):
        self.head = None

What are some common use cases for doubly linked lists?

Common use cases include implementing undo functionality in applications, navigation systems, and managing playlists.