|  | 15. 3Sum |  |  | Solve | Medium |  |  | 
|  | 18. 4Sum |  |  | Solve | Medium |  |  | 
|  | 46. Permutations |  |  | Solve | Medium |  |  | 
|  | 53. Maximum Subarray |  |  | Solve | Medium |  |  | 
|  | 92. Reverse Linked List II |  |  | Solve | Medium |  |  | 
|  | 95. Unique Binary Search Trees II |  |  | Solve | Medium |  |  | 
|  | 135. Candy |  |  | Solve | Hard |  |  | 
|  | 139. Word Break |  |  | Solve | Medium |  |  | 
|  | 141. Linked List Cycle |  |  | Solve | Easy | 42gearMobilitySystems+131 |  | 
|  | 152. Maximum Product Subarray |  |  | Solve | Medium |  |  | 
|  | 215. Kth Largest Element in an Array |  |  | Solve | Medium |  |  | 
|  | 300. Longest Increasing Subsequence |  |  | Solve | Medium |  |  | 
|  | 338. Counting Bits |  |  | Solve | Easy |  |  | 
|  | 403. Frog Jump |  |  | Solve | Hard |  |  | 
|  | 518. Coin Change II |  |  | Solve | Medium |  |  | 
|  | 706. Design HashMap |  |  | Solve | Easy |  |  | 
|  | 785. Is Graph Bipartite? |  |  | Solve | Medium |  |  | 
|  | 856. Score of Parentheses |  |  | Solve | Medium |  |  | 
|  | 871. Minimum Number of Refueling Stops |  |  | Solve | Hard |  |  | 
|  | 1124. Longest Well-Performing Interval |  |  | Solve | Medium |  |  | 
|  | 1318. Minimum Flips to Make a OR b Equal to c |  |  | Solve | Medium |  |  | 
|  | 1356. Sort Integers by The Number of 1 Bits |  |  | Solve | Easy |  |  | 
|  | 1540. Can Convert String in K Moves |  |  | Solve | Medium |  |  | 
|  | 1798. Maximum Number of Consecutive Values You Can Make |  |  | Solve | Medium |  |  | 
|  | 1838. Frequency of the Most Frequent Element |  |  | Solve | Medium |  |  | 
|  | 1872. Stone Game VIII |  |  | Solve | Hard |  |  | 
|  | 1946. Largest Number After Mutating Substring |  |  | Solve | Medium |  |  | 
|  | 2035. Partition Array Into Two Arrays to Minimize Sum Difference |  |  | Solve | Hard |  |  | 
|  | 2233. Maximum Product After K Increments |  |  | Solve | Medium |  |  | 
|  | 2338. Count the Number of Ideal Arrays |  |  | Solve | Hard |  |  | 
|  | 2382. Maximum Segment Sum After Removals |  |  | Solve | Hard |  |  | 
|  | 2418. Sort the People |  |  | Solve | Easy |  |  | 
|  | 2445. Number of Nodes With Value One |  |  | Solve | Medium |  |  | 
|  | 2457. Minimum Addition to Make Integer Beautiful |  |  | Solve | Medium |  |  | 
|  | 2463. Minimum Total Distance Traveled |  |  | Solve | Hard |  |  | 
|  | 2597. The Number of Beautiful Subsets |  |  | Solve | Medium |  |  | 
|  | 2612. Minimum Reverse Operations |  |  | Solve | Hard |  |  | 
|  | 2827. Number of Beautiful Integers in the Range |  |  | Solve | Hard |  |  | 
|  | 2829. Determine the Minimum Sum of a k-avoiding Array |  |  | Solve | Medium |  |  | 
|  | 2834. Find the Minimum Possible Sum of a Beautiful Array |  |  | Solve | Medium |  |  | 
|  | 2940. Find Building Where Alice and Bob Can Meet |  |  | Solve | Hard |  |  |