| 1912. Design Movie Rental System | | | Solve | Hard | | |
| 1916. Count Ways to Build Rooms in an Ant Colony | | | Solve | Hard | | |
| 1917. Leetcodify Friends Recommendations | | | Solve | Hard | | |
| 1919. Leetcodify Similar Friends | | | Solve | Hard | | |
| 1923. Longest Common Subpath | | | Solve | Hard | | |
| 1924. Erect the Fence II | | | Solve | Hard | | |
| 1928. Minimum Cost to Reach Destination in Time | | | Solve | Hard | | |
| 1931. Painting a Grid With Three Different Colors | | | Solve | Hard | | |
| 1932. Merge BSTs to Create Single BST | | | Solve | Hard | - | |
| 1938. Maximum Genetic Difference Query | | | Solve | Hard | | |
| 1944. Number of Visible People in a Queue | | | Solve | Hard | | |
| 1948. Delete Duplicate Folders in System | | | Solve | Hard | | |
| 1955. Count Number of Special Subsequences | | | Solve | Hard | | |
| 1956. Minimum Time For K Virus Variants to Spread | | | Solve | Hard | - | |
| 1960. Maximum Product of the Length of Two Palindromic Substrings | | | Solve | Hard | | |
| 1964. Find the Longest Valid Obstacle Course at Each Position | | | Solve | Hard | | |
| 1970. Last Day Where You Can Still Cross | | | Solve | Hard | | |
| 1972. First and Last Call On the Same Day | | | Solve | Hard | | |
| 1977. Number of Ways to Separate Numbers | | | Solve | Hard | | |
| 1982. Find Array Given Subset Sums | | | Solve | Hard | | |
| 1987. Number of Unique Good Subsequences | | | Solve | Hard | | |
| 1994. The Number of Good Subsets | | | Solve | Hard | | |
| 1998. GCD Sort of an Array | | | Solve | Hard | | |
| 2003. Smallest Missing Genetic Value in Each Subtree | | | Solve | Hard | | |
| 2004. The Number of Seniors and Juniors to Join the Company | | | Solve | Hard | | |
| 2005. Subtree Removal Game with Fibonacci Tree | | | Solve | Hard | | |
| 2009. Minimum Number of Operations to Make Array Continuous | | | Solve | Hard | | |
| 2010. The Number of Seniors and Juniors to Join the Company II | | | Solve | Hard | - | |
| 2014. Longest Subsequence Repeated k Times | | | Solve | Hard | | |
| 2019. The Score of Students Solving Math Expression | | | Solve | Hard | | |
| 2025. Maximum Number of Ways to Partition an Array | | | Solve | Hard | | |
| 2030. Smallest K-Length Subsequence With Occurrences of a Letter | | | Solve | Hard | | |
| 2035. Partition Array Into Two Arrays to Minimize Sum Difference | | | Solve | Hard | | |
| 2040. Kth Smallest Product of Two Sorted Arrays | | | Solve | Hard | | |
| 2045. Second Minimum Time to Reach Destination | | | Solve | Hard | - | |
| 2050. Parallel Courses III | | | Solve | Hard | | |
| 2056. Number of Valid Move Combinations On Chessboard | | | Solve | Hard | | |
| 2060. Check if an Original String Exists Given Two Encoded Strings | | | Solve | Hard | | |
| 2065. Maximum Path Quality of a Graph | | | Solve | Hard | | |
| 2071. Maximum Number of Tasks You Can Assign | | | Solve | Hard | | |
| 2076. Process Restricted Friend Requests | | | Solve | Hard | | |
| 2081. Sum of k-Mirror Numbers | | | Solve | Hard | | |
| 2088. Count Fertile Pyramids in a Land | | | Solve | Hard | | |
| 2092. Find All People With Secret | | | Solve | Hard | | |
| 2097. Valid Arrangement of Pairs | | | Solve | Hard | | |
| 2102. Sequentially Ordinal Rank Tracker | | | Solve | Hard | | |
| 2106. Maximum Fruits Harvested After at Most K Steps | | | Solve | Hard | | |
| 2111. Minimum Operations to Make the Array K-Increasing | | | Solve | Hard | | |
| 2117. Abbreviating the Product of a Range | | | Solve | Hard | | |
| 2118. Build the Equation | | | Solve | Hard | - | |
