More Problems

• Write a function to rotate a circular doubly linked list such that the node with the second-highest value becomes the new head.
• How do you merge k sorted multilevel linked lists where each list may contain both forward and child pointers?
• Implement a function to reverse the second half of a multilevel circular singly linked list while preserving the first half.
• Write a function to flatten a circular singly linked list where each node contains a pointer to a stack.
• How do you rearrange nodes in a circular doubly linked list such that the list alternates between odd and even values?
• Implement a function to split a sorted circular singly linked list into two lists where one list contains nodes divisible by 4.
• Write a function to reverse every alternate k-th node in a circular singly linked list without recursion.
• How do you detect and remove multiple loops in a multilevel circular singly linked list where nodes have both next and child pointers?