Doubly Linked Lists
Explore the concept of doubly linked lists and understand how nodes store references to both previous and next nodes enabling traversal in both directions. Learn about their structure, implementation in Python, and practical uses compared to singly linked lists for more flexible data handling.
At this stage, singly linked lists and operations such as insertion, deletion, and traversal have been covered. In a singly linked list, each node stores a value and a reference to the next node. This design supports traversal in the forward direction, one node at a time.
However, singly linked lists have an important limitation. As each node only stores a link to the next node, traversal is only possible in one direction. If we are currently at a node and want to return to the previous node, there is no direct way to do that. ...