More Problems

• Write a function to rotate a doubly linked list such that every k-th node becomes the new head using recursion.
• How do you detect the first common node in two circular linked lists with cycles at different points?
• Implement a function to reverse every k-th node in a doubly linked list while preserving the relative order of other nodes.
• Write a function to merge two sorted circular doubly linked lists where one list is sorted in ascending order and the other in descending order.
• How do you rotate a circular singly linked list such that the node with the highest value becomes the new head?
• Implement a function to reverse the first n nodes in a circular doubly linked list without using recursion.
• Write a function to split a doubly linked list into two lists where each list contains alternating nodes from the original list.
• How do you flatten a multilevel linked list where each node has pointers to multiple child linked lists?