More Problems

• How do you merge k unsorted linked lists into one sorted circular doubly linked list using recursion?
• Implement a function to reverse every k-th node in a doubly linked list while preserving the structure of the list.
• Write a function to split a singly linked list into two lists where each list contains alternating even and odd values.
• How do you detect and remove multiple loops in a doubly linked list where each node has forward and backward pointers?
• Implement a function to flatten a multilevel singly linked list where each node contains both a next and a sibling pointer.
• Write a function to reverse every alternate k-th node in a circular singly linked list using recursion.
• How do you merge two sorted circular doubly linked lists into one sorted circular singly linked list without recursion?
• Implement a function to rearrange nodes in a circular singly linked list such that all even values appear before odd values.