| 1303. Find the Team Size | Solution | Solve | Easy | | |
| 1308. Running Total for Different Genders | Solution | Solve | Medium | - | |
| 1322. Ads Performance | Solution | Solve | Easy | | |
| 1336. Number of Transactions per Visit | Solution | Solve | Hard | | |
| 1350. Students With Invalid Departments | Solution | Solve | Easy | | |
| 1355. Activity Participants | Solution | Solve | Medium | | |
| 1364. Number of Trusted Contacts of a Customer | Solution | Solve | Medium | | |
| 1369. Get the Second Most Recent Activity | Solution | Solve | Hard | | |
| 1384. Total Sales Amount by Year | Solution | Solve | Hard | - | |
| 1398. Customers Who Bought Products A and B but Not C | Solution | Solve | Medium | | |
| 1412. Find the Quiet Students in All Exams | Solution | Solve | Hard | - | |
| 1421. NPV Queries | Solution | Solve | Easy | | |
| 1426. Counting Elements | Solution | Solve | Easy | | |
| 1427. Perform String Shifts | Solution | Solve | Easy | | |
| 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 | - | |
| 1435. Create a Session Bar Chart | Solution | Solve | Easy | | |
| 1440. Evaluate Boolean Expression | Solution | Solve | Medium | | |
| 1445. Apples & Oranges | Solution | Solve | Medium | | |
| 1454. Active Users | Solution | Solve | Medium | | |
| 1459. Rectangles Area | Solution | Solve | Medium | | |
| 1468. Calculate Salaries | Solution | Solve | Medium | - | |
| 1469. Find All The Lonely Nodes | Solution | Solve | Easy | | |
| 1474. Delete N Nodes After M Nodes of a Linked List | Solution | Solve | Easy | | |
| 1479. Sales by Day of the Week | Solution | Solve | Hard | | |
| 1485. Clone Binary Tree With Random Pointer | Solution | Solve | Medium | | |
| 1490. Clone N-ary Tree | Solution | Solve | Medium | | |
| 1495. Friendly Movies Streamed Last Month | Solution | Solve | Easy | | |
| 1500. Design a File Sharing System | Solution | Solve | Medium | | |
| 1501. Countries You Can Safely Invest In | Solution | Solve | Medium | - | |
| 1506. Find Root of N-Ary Tree | Solution | Solve | Medium | | |
| 1511. Customer Order Frequency | Solution | Solve | Easy | | |
| 1516. Move Sub-Tree of N-Ary Tree | Solution | Solve | Hard | | |
| 1522. Diameter of N-Ary Tree | Solution | Solve | Medium | | |
| 1532. The Most Recent Three Orders | Solution | Solve | Medium | - | |
| 1533. Find the Index of the Large Integer | Solution | Solve | Medium | | |
| 1538. Guess the Majority in a Hidden Array | Solution | Solve | Medium | | |
| 1543. Fix Product Name Format | Solution | Solve | Easy | - | |
| 1548. The Most Similar Path in a Graph | Solution | Solve | Hard | | |
| 1549. The Most Recent Orders for Each Product | Solution | Solve | Medium | | |
| 1554. Strings Differ by One Character | Solution | Solve | Medium | | |
| 1555. Bank Account Summary | Solution | Solve | Medium | | |
| 1564. Put Boxes Into the Warehouse I | Solution | Solve | Medium | | |
| 1565. Unique Orders and Customers Per Month | Solution | Solve | Easy | - | |
| 1570. Dot Product of Two Sparse Vectors | Solution | Solve | Medium | | |
| 1571. Warehouse Manager | Solution | Solve | Easy | | |
| 1580. Put Boxes Into the Warehouse II | Solution | Solve | Medium | | |
| 1586. Binary Search Tree Iterator II | Solution | Solve | Medium | | |
| 1596. The Most Frequently Ordered Products for Each Customer | Solution | Solve | Medium | | |
