Topic: linked-list-problem / Level: beginner

• 201. Write a function to insert a node at the end of a circular singly linked list.
• 202. How do you check if a linked list contains an even number of elements?
• 203. Implement a function to find the second node from the end of a linked list.
• 204. Write a function to remove all the nodes with values greater than a given number in a linked list.
• 205. How do you count the number of odd-valued nodes in a linked list?
• 206. Implement a function to sort a circular linked list in ascending order.
• 207. Write a function to find the median value of a linked list.
• 208. How do you merge two doubly linked lists into one sorted doubly linked list?
• 209. Implement a function to convert a binary search tree into a sorted doubly linked list.
• 210. Write a function to rotate a circular doubly linked list by n positions.
• 211. How do you find the sum of all nodes in a doubly linked list?
• 212. Implement a function to merge two sorted linked lists into one doubly linked list.
• 213. Write a function to remove the first occurrence of a value in a doubly linked list.
• 214. How do you remove every node that has an even value in a circular singly linked list?
• 215. Implement a function to add two numbers represented by linked lists (digits stored in reverse order).
• 216. Write a function to reverse the first half of a doubly linked list.
• 217. How do you check if a singly linked list contains only unique values?
• 218. Implement a function to find the intersection of two doubly linked lists.
• 219. Write a function to delete all nodes that are divisible by 5 in a linked list.
• 220. How do you rearrange the nodes of a linked list so that they are in alternating ascending and descending order?
• 221. Implement a function to delete all nodes with values less than a given threshold in a circular doubly linked list.
• 222. Write a function to check if a singly linked list is circular.
• 223. How do you split a singly linked list into two equal parts?
• 224. Implement a function to reverse the nodes of a linked list between two given positions.
• 225. Write a function to remove nodes from a circular singly linked list that are greater than a given value.
• 226. How do you concatenate two circular singly linked lists?
• 227. Implement a function to remove all nodes in a circular linked list whose values are prime numbers.
• 228. Write a function to reverse the data in every k nodes in a circular doubly linked list.
• 229. How do you delete the node at the kth position in a circular doubly linked list?
• 230. Implement a function to insert a node at the middle of a circular singly linked list.
• 231. Write a function to merge two doubly linked lists into a circular doubly linked list.
• 232. How do you check if a doubly linked list contains a loop?
• 233. Implement a function to remove all nodes whose values are less than the value of the next node in a linked list.
• 234. Write a function to count the number of nodes whose value is a multiple of 3 in a circular singly linked list.
• 235. How do you remove all nodes with odd values in a doubly linked list?
• 236. Implement a function to find the node at the middle of a circular singly linked list.
• 237. Write a function to insert a node in a sorted circular singly linked list.
• 238. How do you rotate a doubly linked list to the right by k positions?
• 239. Implement a function to count the number of nodes whose values are prime in a linked list.
• 240. Write a function to check if a circular singly linked list contains any duplicate values.
• 241. How do you find the last node of a circular doubly linked list?
• 242. Implement a function to remove all nodes from a circular singly linked list except the head node.
• 243. Write a function to delete all nodes in a circular singly linked list with values less than a given threshold.
• 244. How do you delete the first node from a circular doubly linked list?
• 245. Implement a function to delete all nodes with values greater than a given threshold from a doubly linked list.
• 246. Write a function to reverse the second half of a circular singly linked list.
• 247. How do you count the number of elements in a circular doubly linked list whose value is odd?
• 248. Implement a function to find the minimum value in a circular singly linked list.
• 249. Write a function to merge two sorted doubly linked lists.
• 250. How do you check if two linked lists have the same structure and data?

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