More Problems

• Implement a function to detect and remove a loop in a doubly linked list where each node has a forward and a backward pointer.
• Write a function to rotate a circular singly linked list so that nodes with odd values come before nodes with even values.
• How do you reverse every alternate group of nodes in a multilevel doubly linked list where each node has both forward and backward pointers?
• Implement a function to merge two unsorted doubly linked lists into one sorted circular singly linked list without using extra memory.
• Write a function to rearrange nodes in a circular doubly linked list such that nodes with prime-numbered positions come before non-prime positions.
• How do you flatten a multilevel singly linked list where each node contains a pointer to a binary tree?
• Implement a function to reverse every k-th node in a circular doubly linked list while maintaining the relative order of the remaining nodes.
• Write a function to rotate a singly linked list so that the node with the second-largest value becomes the new head.