More Problems

• How do you reverse the first half of a circular doubly linked list without using recursion?
• Write a function to reverse nodes between two given positions m and n in a doubly linked list without using recursion.
• How do you rotate a circular singly linked list left by k positions without using extra memory?
• Implement a function to merge two unsorted singly linked lists into one sorted circular doubly linked list.
• Write a function to delete all nodes with values greater than a given threshold in a circular singly linked list.
• How do you reverse every third node in a circular doubly linked list using an iterative approach?
• Implement a function to detect a loop in a doubly linked list and remove it.
• Write a function to check if a singly linked list is a palindrome using a stack and two-pointer technique.