| 1351. Count Negative Numbers in a Sorted Matrix | Solution | Solve | Easy | | |
| 1352. Product of the Last K Numbers | Solution | Solve | Medium | | |
| 1353. Maximum Number of Events That Can Be Attended | Solution | Solve | Medium | | |
| 1354. Construct Target Array With Multiple Sums | Solution | Solve | Hard | | |
| 1355. Activity Participants | Solution | Solve | Medium | | |
| 1356. Sort Integers by The Number of 1 Bits | Solution | Solve | Easy | | |
| 1357. Apply Discount Every n Orders | Solution | Solve | Medium | | |
| 1358. Number of Substrings Containing All Three Characters | Solution | Solve | Medium | | |
| 1359. Count All Valid Pickup and Delivery Options | Solution | Solve | Hard | | |
| 1360. Number of Days Between Two Dates | Solution | Solve | Easy | | |
| 1361. Validate Binary Tree Nodes | Solution | Solve | Medium | | |
| 1362. Closest Divisors | Solution | Solve | Medium | | |
| 1363. Largest Multiple of Three | Solution | Solve | Hard | | |
| 1364. Number of Trusted Contacts of a Customer | Solution | Solve | Medium | | |
| 1365. How Many Numbers Are Smaller Than the Current Number | Solution | Solve | Easy | | |
| 1366. Rank Teams by Votes | Solution | Solve | Medium | | |
| 1367. Linked List in Binary Tree | Solution | Solve | Medium | | |
| 1368. Minimum Cost to Make at Least One Valid Path in a Grid | Solution | Solve | Hard | | |
| 1369. Get the Second Most Recent Activity | Solution | Solve | Hard | | |
| 1370. Increasing Decreasing String | Solution | Solve | Easy | | |
| 1371. Find the Longest Substring Containing Vowels in Even Counts | Solution | Solve | Medium | | |
| 1372. Longest ZigZag Path in a Binary Tree | Solution | Solve | Medium | | |
| 1373. Maximum Sum BST in Binary Tree | Solution | Solve | Hard | | |
| 1374. Generate a String With Characters That Have Odd Counts | Solution | Solve | Easy | | |
| 1375. Number of Times Binary String Is Prefix-Aligned | Solution | Solve | Medium | | |
| 1376. Time Needed to Inform All Employees | Solution | Solve | Medium | | |
| 1377. Frog Position After T Seconds | Solution | Solve | Hard | | |
| 1378. Replace Employee ID With The Unique Identifier | Solution | Solve | Easy | | |
| 1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree | Solution | Solve | Easy | | |
| 1380. Lucky Numbers in a Matrix | Solution | Solve | Easy | | |
| 1381. Design a Stack With Increment Operation | Solution | Solve | Medium | | |
| 1382. Balance a Binary Search Tree | Solution | Solve | Medium | | |
| 1383. Maximum Performance of a Team | Solution | Solve | Hard | | |
| 1384. Total Sales Amount by Year | Solution | Solve | Hard | - | |
| 1385. Find the Distance Value Between Two Arrays | Solution | Solve | Easy | | |
| 1386. Cinema Seat Allocation | Solution | Solve | Medium | | |
| 1387. Sort Integers by The Power Value | Solution | Solve | Medium | | |
| 1388. Pizza With 3n Slices | Solution | Solve | Hard | | |
| 1389. Create Target Array in the Given Order | Solution | Solve | Easy | | |
| 1390. Four Divisors | Solution | Solve | Medium | | |
| 1391. Check if There is a Valid Path in a Grid | Solution | Solve | Medium | | |
| 1392. Longest Happy Prefix | Solution | Solve | Hard | | |
| 1393. Capital Gain/Loss | Solution | Solve | Medium | | |
| 1394. Find Lucky Integer in an Array | Solution | Solve | Easy | | |
| 1395. Count Number of Teams | Solution | Solve | Medium | | |
| 1396. Design Underground System | Solution | Solve | Medium | | |
| 1397. Find All Good Strings | Solution | Solve | Hard | | |
| 1398. Customers Who Bought Products A and B but Not C | Solution | Solve | Medium | | |
| 1399. Count Largest Group | Solution | Solve | Easy | | |
| 1400. Construct K Palindrome Strings | Solution | Solve | Medium | | |
