| 1352 | Product of the Last K Numbers | Medium |
| 1353 | Maximum Number of Events That Can Be Attended | Medium |
| 1357 | Apply Discount Every n Orders | Medium |
| 1358 | Number of Substrings Containing All Three Characters | Medium |
| 1361 | Validate Binary Tree Nodes | Medium |
| 1362 | Closest Divisors | Medium |
| 1366 | Rank Teams by Votes | Medium |
| 1367 | Linked List in Binary Tree | Medium |
| 1371 | Find the Longest Substring Containing Vowels in Even Counts | Medium |
| 1372 | Longest ZigZag Path in a Binary Tree | Medium |
| 1375 | Number of Times Binary String Is Prefix-Aligned | Medium |
| 1376 | Time Needed to Inform All Employees | Medium |
| 1381 | Design a Stack With Increment Operation | Medium |
| 1382 | Balance a Binary Search Tree | Medium |
| 1386 | Cinema Seat Allocation | Medium |
| 1387 | Sort Integers by The Power Value | Medium |
| 1390 | Four Divisors | Medium |
| 1391 | Check if There is a Valid Path in a Grid | Medium |
| 1393 | Capital Gain/Loss | Medium |
| 1395 | Count Number of Teams | Medium |
| 1396 | Design Underground System | Medium |
| 1400 | Construct K Palindrome Strings | Medium |
| 1401 | Circle and Rectangle Overlapping | Medium |
| 1404 | Number of Steps to Reduce a Number in Binary Representation to One | Medium |
| 1405 | Longest Happy String | Medium |
| 1409 | Queries on a Permutation With Key | Medium |
| 1410 | HTML Entity Parser | Medium |
| 1414 | Find the Minimum Number of Fibonacci Numbers Whose Sum Is K | Medium |
| 1415 | The k-th Lexicographical String of All Happy Strings of Length n | Medium |
| 1418 | Display Table of Food Orders in a Restaurant | Medium |