- 547. Friend Circles[没有解出]
- 287. Find the Duplicate Number
- 294. Flip Game II
- 297. Serialize and Deserialize Binary Tree[没有解出]
- 319. Bulb Switcher
- 326. Power of Three
- 341. Flatten Nested List Iterator
- 342. Power of Four
- 364. Nested List Weight Sum II[没有解出]
- 378. Kth Smallest Element in a Sorted Matrix
- 380. Insert Delete GetRandom O(1)
- 384. Shuffle an Array
- 416. Partition Equal Subset Sum
- 437. Path Sum III
- 538. Convert BST to Greater Tree
- 281. Zigzag Iterator
- 560. Subarray Sum Equals K
- 628. Maximum Product of Three Numbers
- 646. Maximum Length of Pair Chain
- 665. Non-decreasing Array
- 698. Partition to K Equal Sum Subsets[没有解出]
- 718. Maximum Length of Repeated Subarray
- 737. Sentence Similarity II
- 739. Daily Temperatures
- 787. Cheapest Flights Within K Stops
- 877. Stone Game
- 968. Binary Tree Cameras[没有解出]
- 1002. Find Common Characters
- 1202. Smallest String With Swaps[没有解出]
- 227. Basic Calculator II
- 75. Sort Colors
- 84. Largest Rectangle in Histogram
- 94. Binary Tree Inorder Traversal
- 95. Unique Binary Search Trees II
- 99. Recover Binary Search Tree[没有解出]
- 116. Populating Next Right Pointers in Each Node
- 117. Populating Next Right Pointers in Each Node II
- 137. Single Number II
- 151. Reverse Words in a String
- 157. Read N Characters Given Read4[没有解出]
- 207. Course Schedule[没有解出]
- 220. Contains Duplicate III
- 222. Count Complete Tree Nodes
- 225. Implement Stack using Queues
- 5. Longest Palindromic Substring
- 229. Majority Element II
- 230. Kth Smallest Element in a BST[没有解出]
- 238. Product of Array Except Self
- 240. Search a 2D Matrix II
- 251. Flatten 2D Vector
- 255. Verify Preorder Sequence in Binary Search Tree
- 258. Add Digits
- 260. Single Number III
- 264. Ugly Number II
- 270. Closest Binary Search Tree Value
- 271. Encode and Decode Strings
- 274. H-Index
- 277. Find the Celebrity