More Problems

• Write a function to merge two unsorted doubly linked lists into one sorted circular doubly linked list without using extra space.
• How do you rotate a circular doubly linked list to the right by k positions using recursion?
• Implement a function to reverse every alternate node in a singly linked list using recursion.
• Write a function to rearrange nodes in a doubly linked list such that nodes with even values appear before odd values.
• How do you detect and remove a cycle in a singly linked list using recursion?
• Implement a function to reverse the first k nodes in a circular singly linked list using recursion.
• Write a function to rotate a circular singly linked list to the left by k positions without using extra memory.
• How do you split a doubly linked list into two separate lists based on whether the node values are divisible by a given number?