| 1153. String Transforms Into Another String | Solution | Solve | Hard | | |
| 1159. Market Analysis II | Solution | Solve | Hard | | |
| 1165. Single-Row Keyboard | Solution | Solve | Easy | | |
| 1166. Design File System | Solution | Solve | Medium | | |
| 1167. Minimum Cost to Connect Sticks | Solution | Solve | Medium | | |
| 1168. Optimize Water Distribution in a Village | Solution | Solve | Hard | | |
| 1173. Immediate Food Delivery I | Solution | Solve | Easy | | |
| 1176. Diet Plan Performance | Solution | Solve | Easy | | |
| 1180. Count Substrings with Only One Distinct Letter | Solution | Solve | Easy | | |
| 1181. Before and After Puzzle | Solution | Solve | Medium | | |
| 1182. Shortest Distance to Target Color | Solution | Solve | Medium | | |
| 1183. Maximum Number of Ones | Solution | Solve | Hard | | |
| 1188. Design Bounded Blocking Queue | Solution | Solve | Medium | | |
| 1194. Tournament Winners | Solution | Solve | Hard | | |
| 1196. How Many Apples Can You Put into the Basket | Solution | Solve | Easy | | |
| 1197. Minimum Knight Moves | Solution | Solve | Medium | | |
| 1198. Find Smallest Common Element in All Rows | Solution | Solve | Medium | | |
| 1199. Minimum Time to Build Blocks | Solution | Solve | Hard | | |
| 1205. Monthly Transactions II | Solution | Solve | Medium | | |
| 1212. Team Scores in Football Tournament | Solution | Solve | Medium | | |
| 1213. Intersection of Three Sorted Arrays | Solution | Solve | Easy | | |
| 1214. Two Sum BSTs | Solution | Solve | Medium | | |
| 1215. Stepping Numbers | Solution | Solve | Medium | | |
| 1216. Valid Palindrome III | Solution | Solve | Hard | | |
| 1225. Report Contiguous Dates | Solution | Solve | Hard | | |
| 1228. Missing Number In Arithmetic Progression | Solution | Solve | Easy | | |
| 1229. Meeting Scheduler | Solution | Solve | Medium | | |
| 1230. Toss Strange Coins | Solution | Solve | Medium | | |
| 1231. Divide Chocolate | Solution | Solve | Hard | | |
| 1236. Web Crawler | Solution | Solve | Medium | | |
| 1241. Number of Comments per Post | Solution | Solve | Easy | | |
| 1242. Web Crawler Multithreaded | Solution | Solve | Medium | | |
| 1243. Array Transformation | Solution | Solve | Easy | | |
| 1244. Design A Leaderboard | Solution | Solve | Medium | | |
| 1245. Tree Diameter | Solution | Solve | Medium | | |
| 1246. Palindrome Removal | Solution | Solve | Hard | | |
| 1256. Encode Number | Solution | Solve | Medium | | |
| 1257. Smallest Common Region | Solution | Solve | Medium | | |
| 1258. Synonymous Sentences | Solution | Solve | Medium | | |
| 1259. Handshakes That Don't Cross | Solution | Solve | Hard | | |
| 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 | | |
| 1271. Hexspeak | Solution | Solve | Easy | | |
| 1272. Remove Interval | Solution | Solve | Medium | | |
| 1273. Delete Tree Nodes | Solution | Solve | Medium | | |
| 1274. Number of Ships in a Rectangle | Solution | Solve | Hard | | |
| 1279. Traffic Light Controlled Intersection | Solution | Solve | Easy | - | |
| 1285. Find the Start and End Number of Continuous Ranges | Solution | Solve | Medium | | |
| 1294. Weather Type in Each Country | Solution | Solve | Easy | | |
