Circular Linked List
A circular linked list is a linked list in which the first element points to the last element and the other way round. The singly linked list and the doubly linked list can be turned into a circular linked list.
Singly Linked List to a Circular Linked List.
In this, the last node’s next pointer points to the first node making it circular.
Doubly Linked List to Circular Linked List
The last node’s next pointer points to the first node, and the previous pointer of the first node points to the last node.
Operations:
The circular linked list supports the following operations:
- Insert
- Delete
- Display
Insertion

Deletion
Display
Reference