Linked Lists — Data Structures & Algorithms for Data Scientists | by Egor Howell | Oct, 2024


How linked lists and queues work under the hood

Photo by Luca Bravo on Unsplash

Following my previous article on arrays, I want to discuss the linked list data structure and some of its operations.

As data scientists, even though we are not necessarily expected to know data structures and algorithms inside-out, it’s still a handy skill set for any tech professional.

That’s why I am creating a series of articles discussing the central data structures and how they work under the hood.

Linked lists are a type of data structure in which each element, called a node, is stored/works in a sequence. However, they are not stored in memory contiguously like arrays.

Each node has two things:

  • Data — The value held by that node
  • Reference — Points and contains the reference to the next node in the sequence.

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