Linked Lists are linear, dynamic, and derived data structures that can be implemented in different ways using different programming languages. Linked lists are similar to arrays in terms of usage.
The difference lies in the fact that arrays have fixed lengths while Linked Lists do not. Besides array or list elements stored in contiguous memory locations while Linked List elements are connected via link fields which hold the links to the next elements.
Linked Lists are dynamic in the sense, elements can be added in the middle of a Linked List as well as at both its ends. And Linked Lists are applied in a wide range of contexts like to implement stacks and queues, as well as to implement adjacency lists in case of graph definitions.
Traversing a Linked List refers to the act of visiting every element stored in a data structure.
Every node in a Linked List has two sections to them. One, the value field which holds the data to be stored. And two, the link field which holds the address of the next node in the sequence of nodes in the Linked List.
There are mainly two types of Linked Lists;
Linked Lists in Python can be implemented using the object-oriented characteristic of Python.
The two main classes to be built to implement Linked Lists are :