More Problems

• Write a function to reverse every k nodes in a doubly linked list, but preserve the order of remaining nodes.
• How do you merge two sorted linked lists where each node contains a random pointer to any other node in the list?
• Implement a function to remove all occurrences of a given value from a circular doubly linked list.
• Write a function to check if a singly linked list is a palindrome using a stack and two-pointer technique.
• How do you flatten a linked list where each node has both a next pointer and a child pointer?
• Implement a function to rotate a singly linked list left by k positions.
• Write a function to reverse a doubly linked list in groups of k nodes using recursion.
• How do you merge k sorted singly linked lists using a min heap?