Topic: linked-list-problem / Level: beginner

• 901. Write a function to count the number of even nodes in a circular singly linked list.
• 902. How do you delete every second node in a doubly linked list?
• 903. Implement a function to reverse the nodes in pairs in a circular doubly linked list.
• 904. Write a function to check if a singly linked list contains any prime numbers.
• 905. How do you reverse every k nodes in a circular singly linked list?
• 906. Implement a function to merge two sorted circular singly linked lists into one sorted doubly linked list.
• 907. Write a function to remove the node before the last node in a circular singly linked list.
• 908. How do you count the number of odd-positioned nodes in a circular singly linked list?
• 909. Implement a function to delete every node whose value is divisible by 3 in a doubly linked list.
• 910. Write a function to reverse the nodes in the second half of a doubly linked list.
• 911. How do you insert a node at the second position in a singly linked list?
• 912. Implement a function to delete the first node in a circular doubly linked list.
• 913. Write a function to find the sum of all even nodes in a circular singly linked list.
• 914. How do you remove the second node from a doubly linked list?
• 915. Implement a function to reverse every third node in a circular singly linked list.
• 916. Write a function to check if two singly linked lists have the same length.
• 917. How do you delete the middle node from a doubly linked list?
• 918. Implement a function to count the number of nodes whose values are greater than a given value in a circular singly linked list.
• 919. Write a function to reverse the first k nodes in a doubly linked list.
• 920. How do you merge two unsorted linked lists into one sorted circular singly linked list?
• 921. Implement a function to delete every second node in a circular singly linked list.
• 922. Write a function to find the second largest node in a singly linked list.
• 923. How do you reverse the second half of a singly linked list?
• 924. Implement a function to remove every node with an odd value in a circular singly linked list.
• 925. Write a function to count the number of prime nodes in a circular doubly linked list.
• 926. How do you delete the node before a given node in a circular singly linked list?
• 927. Implement a function to reverse the nodes in groups of three in a doubly linked list.
• 928. Write a function to find the sum of all odd nodes in a singly linked list.
• 929. How do you insert a node at the middle of a circular singly linked list?
• 930. Implement a function to merge two sorted doubly linked lists into one sorted linked list.
• 931. Write a function to check if a circular singly linked list is sorted in descending order.
• 932. How do you delete the second node in a circular singly linked list?
• 933. Implement a function to reverse the first half of a singly linked list.
• 934. Write a function to find the middle node in a doubly linked list.
• 935. How do you reverse every alternate node in a circular doubly linked list?
• 936. Implement a function to delete the node with the smallest value in a circular singly linked list.
• 937. Write a function to check if two circular singly linked lists have the same elements.
• 938. How do you delete every node whose value is divisible by 2 in a doubly linked list?
• 939. Implement a function to reverse every second node in a circular doubly linked list.
• 940. Write a function to merge two unsorted linked lists into a circular singly linked list.
• 941. How do you count the number of nodes in a circular singly linked list whose values are even?
• 942. Implement a function to delete the node at the second position in a singly linked list.
• 943. Write a function to reverse the first n nodes in a circular singly linked list.
• 944. How do you delete the last node in a circular singly linked list?
• 945. Implement a function to count the number of nodes with odd values in a doubly linked list.
• 946. Write a function to find the node with the smallest value in a circular singly linked list.
• 947. How do you reverse every third node in a doubly linked list?
• 948. Implement a function to remove every k-th node from a circular singly linked list.
• 949. Write a function to check if a doubly linked list contains an even number of nodes.
• 950. How do you delete every second node in a singly linked list?

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• Intermediate
• Advanced