AlgoViz: Interactive Algorithm Visualization Tool

Circular Linked List

Category: Data Structures | Time: O(n) Search/Insert | Space: O(n)

Input Data

Visualization

Visual representation of the data structure

Enter commands to build the circular linked list.

About Circular Linked List

A Circular Linked List is a variation of a linked list in which the last node points back to the first node, creating a circle. There is no 'null' at the end. This structure is useful for applications that require continuous looping, like managing processes in a round-robin scheduler.

Code Editor

The code is for reference. Editing it won't affect the visualization.

class Node {
    constructor(data) {
        this.data = data;
        this.next = null;
    }
}
class CircularLinkedList {
    constructor() {
        this.head = null;
    }
    // ... insert, delete, traversal methods ...
    insertAtEnd(data) {
      const newNode = new Node(data);
      if (!this.head) {
          this.head = newNode;
          newNode.next = this.head; // Points to itself
          return;
      }
      let current = this.head;
      while (current.next !== this.head) {
          current = current.next;
      }
      current.next = newNode;
      newNode.next = this.head;
    }
}

What is a Circular Linked List?

What are the advantages of a Circular Linked List?

How do you know when you've traversed the whole list?

What are the time complexities for operations?

What is a major use case?

How does insertion at the end work efficiently?

Where can I learn more?