Linked List DSA Questions 2024 | #shorts

A linked list is a fundamental data structure in computer science. It consists of a sequence of elements, called nodes, where each node contains both data and a reference (or link) to the next node in the sequence. Unlike arrays, linked lists do not have a fixed size and elements can be efficiently inserted or removed from any position in the list.

There are different types of linked lists, including:

1. Singly Linked List: In this type of linked list, each node has a reference to the next node in the sequence.
2. Doubly Linked List: Each node in a doubly linked list contains references to both the next and previous nodes in the sequence, allowing traversal in both directions.
3. Circular Linked List: In a circular linked list, the last node points back to the first node, forming a circular structure.

Linked lists are commonly used in scenarios where dynamic memory allocation is needed, such as implementing stacks, queues, and other data structures. They are also used in situations where efficient insertion and deletion at arbitrary positions are required, although they have slower access times for random elements compared to arrays due to the need for traversal.

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