Discuss Circular doubly linked lists?

Software Development
#1

Circular doubly linked list doesn’t contain NULL in any of the node. The last node of the list contains the address of the first node of the list. Insertion, deletion, and search operations are covered with all the possible operational strategies discussed.

Even though it needs more space, a circular doubly linked list provides easy manipulation of the pointers and the searching becomes twice as efficient.

Since the node structure of a circular doubly linked list is similar to a doubly linked list the operations performed on it are:-

  • Insertion at the beginning - Adding a node in a circular doubly linked list at the beginning.
  • Insertion at end Adding - a node in a circular doubly linked list at the end.
  • Deletion at the beginning - Removing a node in the circular doubly linked list from the beginning.
  • Deletion at the end - Removing a node in a circular doubly linked list at the end.

Some critical properties of Circular Doubly Linked Lists are as follows:

  1. The NULL assignment is not required because a node always points to another node.

  2. The starting point can be set to any node.

  3. Traversal from the first node to the last node is quick.