More Problems

• How do you reverse a doubly linked list without using extra space?
• Implement a function to insert a node at the middle of a circular doubly linked list.
• Write a function to remove all nodes from a doubly linked list that are greater than the average of the list.
• How do you merge two linked lists where one is sorted in ascending order and the other in descending order?
• Implement a function to reverse every alternate group of k nodes in a singly linked list.
• Write a function to detect a loop in a circular doubly linked list.
• How do you flatten a multilevel doubly linked list where each node may have multiple children?
• Implement a function to swap pairs of nodes in a circular singly linked list without swapping data.