11. Python program to remove duplicate elements from a Circular Linked List
In this program, we will create a circular linked list and remove duplicate nodes from the list. We will compare a node with the rest of the list and check for the duplicate. If the duplicate is found, delete the duplicate node from the list.
In the above list, we can see, node 2 is present twice in the list. So, we will have a node current that will iterate through the list. The index will point to the next node to current. Temp will be pointing to the node previous to index. When a duplicate is found, we delete it by pointing temp.next to index.next. Above list after removing duplicates:
Originals list: 1 2 3 2 2 4 List after removing duplicates: 1 2 3 4