More Problems

• Write a function to check if a doubly linked list is sorted.
• How do you split a circular doubly linked list into two halves?
• Implement a function to insert a node at the head of a circular doubly linked list.
• Write a function to delete all nodes with even values in a doubly linked list.
• How do you find the sum of elements in a circular doubly linked list?
• Implement a function to remove the nth node from the end of a circular linked list.
• Write a function to swap the data between two nodes in a doubly linked list.
• How do you rotate a circular doubly linked list by k positions?