| 1254. Number of Closed Islands | | | Solve | Medium | | |
| 1255. Maximum Score Words Formed by Letters | | | Solve | Hard | | |
| 1261. Find Elements in a Contaminated Binary Tree | | | Solve | Medium | | |
| 1263. Minimum Moves to Move a Box to Their Target Location | | | Solve | Hard | | |
| 1268. Search Suggestions System | | | Solve | Medium | | |
| 1269. Number of Ways to Stay in the Same Place After Some Steps | | | Solve | Hard | | |
| 1270. All People Report to the Given Manager | | | Solve | Medium | | |
| 1272. Remove Interval | | | Solve | Medium | | |
| 1275. Find Winner on a Tic Tac Toe Game | | | Solve | Easy | | |
| 1277. Count Square Submatrices with All Ones | | | Solve | Medium | | |
| 1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix | | | Solve | Hard | | |
| 1287. Element Appearing More Than 25% In Sorted Array | | | Solve | Easy | | |
| 1289. Minimum Falling Path Sum II | | | Solve | Hard | | |
| 1292. Maximum Side Length of a Square with Sum Less than or Equal to Threshold | | | Solve | Medium | | |
| 1293. Shortest Path in a Grid with Obstacles Elimination | | | Solve | Hard | | |
| 1296. Divide Array in Sets of K Consecutive Numbers | | | Solve | Medium | | |
| 1305. All Elements in Two Binary Search Trees | | | Solve | Medium | | |
| 1306. Jump Game III | | | Solve | Medium | | |
| 1312. Minimum Insertion Steps to Make a String Palindrome | | | Solve | Hard | | |
| 1316. Distinct Echo Substrings | | | Solve | Hard | | |
| 1319. Number of Operations to Make Network Connected | | | Solve | Medium | | |
| 1320. Minimum Distance to Type a Word Using Two Fingers | | | Solve | Hard | | |
| 1326. Minimum Number of Taps to Open to Water a Garden | | | Solve | Hard | | |
| 1331. Rank Transform of an Array | | | Solve | Easy | | |
| 1345. Jump Game IV | | | Solve | Hard | | |
| 1346. Check If N and Its Double Exist | | | Solve | Easy | | |
| 1352. Product of the Last K Numbers | | | Solve | Medium | | |
| 1359. Count All Valid Pickup and Delivery Options | | | Solve | Hard | | |
| 1363. Largest Multiple of Three | | | Solve | Hard | | |
| 1366. Rank Teams by Votes | | | Solve | Medium | | |
| 1368. Minimum Cost to Make at Least One Valid Path in a Grid | | | Solve | Hard | | |
| 1376. Time Needed to Inform All Employees | | | Solve | Medium | | |
| 1377. Frog Position After T Seconds | | | Solve | Hard | | |
| 1378. Replace Employee ID With The Unique Identifier | | | Solve | Easy | | |
| 1388. Pizza With 3n Slices | | | Solve | Hard | | |
| 1406. Stone Game III | | | Solve | Hard | | |
| 1414. Find the Minimum Number of Fibonacci Numbers Whose Sum Is K | | | Solve | Medium | | |
| 1417. Reformat The String | | | Solve | Easy | | |
| 1422. Maximum Score After Splitting a String | | | Solve | Easy | | |
| 1423. Maximum Points You Can Obtain from Cards | | | Solve | Medium | | |
| 1424. Diagonal Traverse II | | | Solve | Medium | | |
| 1428. Leftmost Column with at Least a One | | | Solve | Medium | | |
| 1436. Destination City | | | Solve | Easy | | |
| 1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit | | | Solve | Medium | | |
| 1441. Build an Array With Stack Operations | | | Solve | Medium | | |
| 1444. Number of Ways of Cutting a Pizza | | | Solve | Hard | | |
| 1446. Consecutive Characters | | | Solve | Easy | | |
| 1447. Simplified Fractions | | | Solve | Medium | | |
| 1449. Form Largest Integer With Digits That Add up to Target | | | Solve | Hard | | |
| 1452. People Whose List of Favorite Companies Is Not a Subset of Another List | | | Solve | Medium | | |
