More Problems

• How do you rearrange a linked list so that all nodes divisible by 3 appear at the end?
• Implement a function to find the smallest element in a doubly linked list.
• How do you insert a node at the k-th position in a circular linked list?
• Write a function to rotate a doubly linked list by k positions.
• How do you append one circular linked list to another?
• Implement a function to delete nodes in a linked list that are smaller than the following node.
• Write a function to remove all nodes whose value is greater than a given threshold.
• How do you reverse the first half of a linked list?