Linked Lists


Linked lists are a data structure used in computer science and data science to store a collection of elements. Each element in a linked list is called a node and contains two parts: the data and a reference to the next node in the list. Unlike arrays, linked lists do not have a fixed size and can grow or shrink dynamically. Linked lists can be singly linked, where each node only has a reference to the next node, or doubly linked, where each node has references to both the next and previous nodes. Linked lists are commonly used in data science for implementing hash tables, graphs, and other data structures.


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