More Problems

• Implement a function to check if a linked list is sorted in non-decreasing order.
• Write a function to remove nodes that contain values greater than the sum of the previous and next node.
• How do you delete the first node of a circular singly linked list without losing the list structure?
• Write a function to merge two sorted circular doubly linked lists into one sorted linked list.
• How do you check if a singly linked list contains any repeating elements?
• Implement a function to find the node at the middle of a doubly linked list.
• Write a function to remove the nth node from the end of a circular singly linked list.
• How do you insert a node at the third position in a circular doubly linked list?