| 489. Robot Room Cleaner | | | Solve | Hard | | |
| 503. Next Greater Element II | | | Solve | Medium | | |
| 523. Continuous Subarray Sum | | | Solve | Medium | | |
| 556. Next Greater Element III | | | Solve | Medium | | |
| 560. Subarray Sum Equals K | | | Solve | Medium | | |
| 658. Find K Closest Elements | | | Solve | Medium | | |
| 670. Maximum Swap | | | Solve | Medium | | |
| 696. Count Binary Substrings | | | Solve | Easy | | |
| 722. Remove Comments | | | Solve | Medium | | |
| 735. Asteroid Collision | | | Solve | Medium | | |
| 745. Prefix and Suffix Search | | | Solve | Hard | | |
| 772. Basic Calculator III | | | Solve | Hard | | |
| 773. Sliding Puzzle | | | Solve | Hard | | |
| 787. Cheapest Flights Within K Stops | | | Solve | Medium | | |
| 791. Custom Sort String | | | Solve | Medium | | |
| 799. Champagne Tower | | | Solve | Medium | | |
| 815. Bus Routes | | | Solve | Hard | | |
| 827. Making A Large Island | | | Solve | Hard | | |
| 834. Sum of Distances in Tree | | | Solve | Hard | | |
| 844. Backspace String Compare | | | Solve | Easy | | |
| 856. Score of Parentheses | | | Solve | Medium | | |
| 886. Possible Bipartition | | | Solve | Medium | | |
| 896. Monotonic Array | | | Solve | Easy | | |
| 919. Complete Binary Tree Inserter | | | Solve | Medium | | |
| 924. Minimize Malware Spread | | | Solve | Hard | | |
| 928. Minimize Malware Spread II | | | Solve | Hard | | |
| 945. Minimum Increment to Make Array Unique | | | Solve | Medium | | |
| 946. Validate Stack Sequences | | | Solve | Medium | | |
| 947. Most Stones Removed with Same Row or Column | | | Solve | Medium | | |
| 968. Binary Tree Cameras | | | Solve | Hard | | |
| 981. Time Based Key-Value Store | | | Solve | Medium | | |
| 992. Subarrays with K Different Integers | | | Solve | Hard | | |
| 1011. Capacity To Ship Packages Within D Days | | | Solve | Medium | | |
| 1099. Two Sum Less Than K | | | Solve | Easy | | |
| 1219. Path with Maximum Gold | | | Solve | Medium | | |
| 1229. Meeting Scheduler | | | Solve | Medium | | |
| 1235. Maximum Profit in Job Scheduling | | | Solve | Hard | | |
| 1293. Shortest Path in a Grid with Obstacles Elimination | | | Solve | Hard | | |
| 1335. Minimum Difficulty of a Job Schedule | | | Solve | Hard | | |
| 1340. Jump Game V | | | Solve | Hard | | |
| 1345. Jump Game IV | | | Solve | Hard | | |
| 1347. Minimum Number of Steps to Make Two Strings Anagram | | | Solve | Medium | | |
| 1381. Design a Stack With Increment Operation | | | Solve | Medium | | |
| 1405. Longest Happy String | | | Solve | Medium | | |
| 1444. Number of Ways of Cutting a Pizza | | | Solve | Hard | | |
| 1454. Active Users | | | Solve | Medium | | |
| 1507. Reformat Date | | | Solve | Easy | | |
| 1530. Number of Good Leaf Nodes Pairs | | | Solve | Medium | | |
| 1539. Kth Missing Positive Number | | | Solve | Easy | | |
| 1548. The Most Similar Path in a Graph | | | Solve | Hard | | |
