| 1614. Maximum Nesting Depth of the Parentheses | | | Solve | Easy | | |
| 1628. Design an Expression Tree With Evaluate Function | | | Solve | Medium | | |
| 1653. Minimum Deletions to Make String Balanced | | | Solve | Medium | | |
| 1673. Find the Most Competitive Subsequence | | | Solve | Medium | | |
| 1700. Number of Students Unable to Eat Lunch | | | Solve | Easy | | |
| 1717. Maximum Score From Removing Substrings | | | Solve | Medium | | |
| 1756. Design Most Recently Used Queue | | | Solve | Medium | | |
| 1762. Buildings With an Ocean View | | | Solve | Medium | | |
| 1776. Car Fleet II | | | Solve | Hard | | |
| 1793. Maximum Score of a Good Subarray | | | Solve | Hard | | |
| 1856. Maximum Subarray Min-Product | | | Solve | Medium | | |
| 1896. Minimum Cost to Change the Final Value of Expression | | | Solve | Hard | | |
| 1910. Remove All Occurrences of a Substring | | | Solve | Medium | | |
| 1944. Number of Visible People in a Queue | | | Solve | Hard | | |
| 1950. Maximum of Minimum Values in All Subarrays | | | Solve | Medium | | |
| 1963. Minimum Number of Swaps to Make the String Balanced | | | Solve | Medium | | |
| 1996. The Number of Weak Characters in the Game | | | Solve | Medium | | |
| 2000. Reverse Prefix of Word | | | Solve | Easy | | |
| 2019. The Score of Students Solving Math Expression | | | Solve | Hard | | |
| 2030. Smallest K-Length Subsequence With Occurrences of a Letter | | | Solve | Hard | | |
| 2104. Sum of Subarray Ranges | | | Solve | Medium | | |
| 2116. Check if a Parentheses String Can Be Valid | | | Solve | Medium | | |
| 2130. Maximum Twin Sum of a Linked List | | | Solve | Medium | | |
| 2197. Replace Non-Coprime Numbers in Array | | | Solve | Hard | | |
| 2211. Count Collisions on a Road | | | Solve | Medium | | |
| 2216. Minimum Deletions to Make Array Beautiful | | | Solve | Medium | | |
| 2254. Design Video Sharing Platform | | | Solve | Hard | | |
| 2281. Sum of Total Strength of Wizards | | | Solve | Hard | | |
| 2282. Number of People That Can Be Seen in a Grid | | | Solve | Medium | | |
| 2289. Steps to Make Array Non-decreasing | | | Solve | Medium | | |
| 2296. Design a Text Editor | | | Solve | Hard | | |
| 2297. Jump Game VIII | | | Solve | Medium | | |
| 2334. Subarray With Elements Greater Than Varying Threshold | | | Solve | Hard | | |
| 2345. Finding the Number of Visible Mountains | | | Solve | Medium | | |
| 2355. Maximum Number of Books You Can Take | | | Solve | Hard | | |
| 2375. Construct Smallest Number From DI String | | | Solve | Medium | | |
| 2390. Removing Stars From a String | | | Solve | Medium | | |
| 2434. Using a Robot to Print the Lexicographically Smallest String | | | Solve | Medium | | |
| 2454. Next Greater Element IV | | | Solve | Hard | - | |
| 2487. Remove Nodes From Linked List | | | Solve | Medium | | |
| 2524. Maximum Frequency Score of a Subarray | | | Solve | Hard | | |
| 2589. Minimum Time to Complete All Tasks | | | Solve | Hard | - | |
| 2617. Minimum Number of Visited Cells in a Grid | | | Solve | Hard | | |
| 2645. Minimum Additions to Make Valid String | | | Solve | Medium | | |
| 2696. Minimum String Length After Removing Substrings | | | Solve | Easy | | |
| 2736. Maximum Sum Queries | | | Solve | Hard | - | |
| 2751. Robot Collisions | | | Solve | Hard | | |
| 2764. Is Array a Preorder of Some โBinary Tree | | | Solve | Medium | - | |
| 2813. Maximum Elegance of a K-Length Subsequence | | | Solve | Hard | - | |
| 2816. Double a Number Represented as a Linked List | | | Solve | Medium | | |