Topic: linked-list-problem / Level: beginner

• 751. Write a function to delete all nodes whose values are greater than the sum of their neighbors in a singly linked list.
• 752. How do you count the number of odd-positioned nodes in a circular singly linked list?
• 753. Implement a function to reverse the second half of a circular doubly linked list.
• 754. Write a function to find the second smallest element in a circular singly linked list.
• 755. How do you remove the node at the k-th position in a doubly linked list?
• 756. Implement a function to delete every second node in a circular doubly linked list.
• 757. Write a function to reverse the order of nodes in a doubly linked list in groups of three.
• 758. How do you find the node at the middle of a singly linked list?
• 759. Implement a function to delete every k-th node in a circular singly linked list.
• 760. Write a function to count the number of nodes in a doubly linked list whose values are divisible by a given number.
• 761. How do you delete the second node in a circular singly linked list?
• 762. Implement a function to reverse every third node in a doubly linked list.
• 763. Write a function to check if a circular singly linked list contains any repeating elements.
• 764. How do you remove all nodes whose values are less than the average of the linked list?
• 765. Implement a function to count the number of nodes in a circular doubly linked list that are greater than a given value.
• 766. Write a function to reverse the first half of a singly linked list.
• 767. How do you delete the node at the third position in a doubly linked list?
• 768. Implement a function to reverse the first n nodes in a circular doubly linked list.
• 769. Write a function to remove all even-valued nodes from a circular singly linked list.
• 770. How do you count the number of prime nodes in a circular singly linked list?
• 771. Implement a function to delete the last node from a doubly linked list.
• 772. Write a function to merge two unsorted linked lists into one sorted circular doubly linked list.
• 773. How do you reverse every k nodes in a singly linked list?
• 774. Implement a function to find the second largest element in a circular doubly linked list.
• 775. Write a function to delete the middle node from a circular singly linked list.
• 776. How do you insert a node at the second position in a doubly linked list?
• 777. Implement a function to reverse the last n nodes in a circular singly linked list.
• 778. Write a function to count the number of odd-positioned nodes in a doubly linked list.
• 779. How do you delete the node at the k-th position in a circular singly linked list?
• 780. Implement a function to reverse every second node in a circular doubly linked list.
• 781. Write a function to check if two circular singly linked lists are identical.
• 782. How do you remove the node at the middle of a singly linked list?
• 783. Implement a function to merge two sorted linked lists into a circular doubly linked list.
• 784. Write a function to find the node with the smallest value in a doubly linked list.
• 785. How do you reverse every third node in a circular singly linked list?
• 786. Implement a function to count the number of even-positioned nodes in a singly linked list.
• 787. Write a function to delete the node at the second position in a circular singly linked list.
• 788. How do you reverse the nodes in the second half of a circular singly linked list?
• 789. Implement a function to delete the last node in a circular doubly linked list.
• 790. Write a function to find the sum of the nodes in a circular singly linked list.
• 791. How do you check if a singly linked list is sorted in non-decreasing order?
• 792. Implement a function to reverse the second half of a doubly linked list.
• 793. Write a function to delete every third node in a singly linked list.
• 794. How do you find the second largest value in a circular singly linked list?
• 795. Implement a function to count the number of odd nodes in a doubly linked list.
• 796. Write a function to reverse the first k nodes of a circular singly linked list.
• 797. How do you delete every second node in a doubly linked list?
• 798. Implement a function to merge two unsorted circular singly linked lists into one sorted list.
• 799. Write a function to check if a doubly linked list is circular.
• 800. How do you reverse every alternate node in a circular singly linked list?

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• Intermediate
• Advanced