DSA

Circular Linked List

Explore circular linked lists where the last node points back to the head, creating a circular structure ideal for repetitive tasks.

By TechCoder TeamLast updated: 2026-06-02
In a Nutshell

Explore circular linked lists where the last node points back to the head, creating a circular structure ideal for repetitive tasks. This hands-on tutorial focuses on practical implementation of circular linked list concepts.

Circular Linked List

A Circular Linked List is a variation of a linked list where the last node points back to the first node (the head), forming a loop.

Key Types

  1. Singly Circular Linked List: Last node points to the head node.
  2. Doubly Circular Linked List: Last node's next points to head, and head's prev points to the last node.

Why Circular Linked Lists?

  • Round Robin Scheduling: Used by Operating Systems to switch between processes.
  • Continuous Loops: Useful for applications like image carousels or music playlists that should repeat.
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Quiz

Quiz

Question 1 of 1

In a circular linked list, what does the next pointer of the last node point to?

Null
The second node
The head node
Itself