| 1066. Campus Bikes II | Solution | Solve | Medium | | |
| 1077. Project Employees III | Solution | Solve | Medium | | |
| 1087. Brace Expansion | Solution | Solve | Medium | | |
| 1098. Unpopular Books | Solution | Solve | Medium | | |
| 1100. Find K-Length Substrings With No Repeated Characters | Solution | Solve | Medium | | |
| 1101. The Earliest Moment When Everyone Become Friends | Solution | Solve | Medium | | |
| 1102. Path With Maximum Minimum Value | Solution | Solve | Medium | | |
| 1107. New Users Daily Count | Solution | Solve | Medium | | |
| 1112. Highest Grade For Each Student | Solution | Solve | Medium | | |
| 1120. Maximum Average Subtree | Solution | Solve | Medium | | |
| 1126. Active Businesses | Solution | Solve | Medium | | |
| 1132. Reported Posts II | Solution | Solve | Medium | | |
| 1135. Connecting Cities With Minimum Cost | Solution | Solve | Medium | | |
| 1136. Parallel Courses | Solution | Solve | Medium | | |
| 1149. Article Views II | Solution | Solve | Medium | | |
| 1151. Minimum Swaps to Group All 1's Together | Solution | Solve | Medium | | |
| 1152. Analyze User Website Visit Pattern | Solution | Solve | Medium | | |
| 1166. Design File System | Solution | Solve | Medium | | |
| 1167. Minimum Cost to Connect Sticks | Solution | Solve | Medium | | |
| 1181. Before and After Puzzle | Solution | Solve | Medium | | |
| 1182. Shortest Distance to Target Color | Solution | Solve | Medium | | |
| 1188. Design Bounded Blocking Queue | Solution | Solve | Medium | | |
| 1197. Minimum Knight Moves | Solution | Solve | Medium | | |
| 1198. Find Smallest Common Element in All Rows | Solution | Solve | Medium | | |
| 1205. Monthly Transactions II | Solution | Solve | Medium | | |
| 1212. Team Scores in Football Tournament | Solution | Solve | Medium | | |
| 1214. Two Sum BSTs | Solution | Solve | Medium | | |
| 1215. Stepping Numbers | Solution | Solve | Medium | | |
| 1229. Meeting Scheduler | Solution | Solve | Medium | | |
| 1230. Toss Strange Coins | Solution | Solve | Medium | | |
| 1236. Web Crawler | Solution | Solve | Medium | | |
| 1242. Web Crawler Multithreaded | Solution | Solve | Medium | | |
| 1244. Design A Leaderboard | Solution | Solve | Medium | | |
| 1245. Tree Diameter | Solution | Solve | Medium | | |
| 1256. Encode Number | Solution | Solve | Medium | | |
| 1257. Smallest Common Region | Solution | Solve | Medium | | |
| 1258. Synonymous Sentences | Solution | Solve | Medium | | |
| 1264. Page Recommendations | Solution | Solve | Medium | | |
| 1265. Print Immutable Linked List in Reverse | Solution | Solve | Medium | - | |
| 1270. All People Report to the Given Manager | Solution | Solve | Medium | | |
| 1272. Remove Interval | Solution | Solve | Medium | | |
| 1273. Delete Tree Nodes | Solution | Solve | Medium | | |
| 1285. Find the Start and End Number of Continuous Ranges | Solution | Solve | Medium | | |
| 1308. Running Total for Different Genders | Solution | Solve | Medium | - | |
| 1355. Activity Participants | Solution | Solve | Medium | | |
| 1364. Number of Trusted Contacts of a Customer | Solution | Solve | Medium | | |
| 1398. Customers Who Bought Products A and B but Not C | Solution | Solve | Medium | | |
| 1428. Leftmost Column with at Least a One | Solution | Solve | Medium | | |
| 1429. First Unique Number | Solution | Solve | Medium | | |
| 1430. Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree | Solution | Solve | Medium | - | |
