More Problems

• Write a function to reverse nodes in a singly linked list in groups of k, with each group reversed in the opposite direction.
• How do you rearrange a doubly linked list so that all nodes with values less than a given value are before those greater than or equal to it?
• Implement a function to check if two circular doubly linked lists are mirror images of each other.
• Write a function to rotate a doubly linked list by k positions to the right.
• How do you reverse every alternate group of k nodes in a circular singly linked list using an iterative approach?
• Implement a function to remove the kth node from the start of a circular doubly linked list.
• Write a function to merge two sorted singly linked lists into a circular singly linked list.
• How do you delete all duplicate nodes from a doubly linked list without using extra space?