Web Reference: Dec 11, 2025 · A linked list is a type of linear data structure individual items are not necessarily at contiguous locations. The individual items are called nodes and connected with each other using links. A node contains two things first is data and second is a link that connects it with another node. In this article, you'll learn what linked lists are and when to use them, such as when you want to implement queues, stacks, or graphs. You'll also learn how to use collections.deque to improve the performance of your linked lists and how to implement linked lists in your own projects. A Linked List is, as the word implies, a list where the nodes are linked together. Each node contains data and a pointer. The way they are linked together is that each node points to where in the memory the next node is placed.
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