To perform deletion in a circular linked list we need to maintain and store the reference of the last node of the list. because using the reference of the last node the deletion operation can be done in constant time.
so in this tutorial, we are going to learn how to
- Deletion of the first node in the circular linked list.
- Delete the only node of the list.
- Delete the last node of the list.
- Delete a node at any position in the list.
Delete the first node of the circular linked list.
let’s say we have a list that has four nodes in it.
Delete the only node
if we have a linked list that has only one node.
Delete the last node
to delete the last node first we need to find a reference p of the predecessor of the last node.
Delete a node at the kth position
to delete a node at position x. first, we need to find the reference to the predecessor of the node. like we want to delete the third node on the list. then we need to find the reference p of the second node.