| 1985 | Find the Kth Largest Integer in the Array | Medium |
| 1986 | Minimum Number of Work Sessions to Finish the Tasks | Medium |
| 1992 | Find All Groups of Farmland | Medium |
| 1993 | Operations on Tree | Medium |
| 1996 | The Number of Weak Characters in the Game | Medium |
| 1997 | First Day Where You Have Been in All the Rooms | Medium |
| 2001 | Number of Pairs of Interchangeable Rectangles | Medium |
| 2002 | Maximum Product of the Length of Two Palindromic Subsequences | Medium |
| 2007 | Find Original Array From Doubled Array | Medium |
| 2008 | Maximum Earnings From Taxi | Medium |
| 2012 | Sum of Beauty in the Array | Medium |
| 2013 | Detect Squares | Medium |
| 2017 | Grid Game | Medium |
| 2018 | Check if Word Can Be Placed In Crossword | Medium |
| 2023 | Number of Pairs of Strings With Concatenation Equal to Target | Medium |
| 2024 | Maximize the Confusion of an Exam | Medium |
| 2028 | Find Missing Observations | Medium |
| 2029 | Stone Game IX | Medium |
| 2033 | Minimum Operations to Make a Uni-Value Grid | Medium |
| 2034 | Stock Price Fluctuation | Medium |
| 2038 | Remove Colored Pieces if Both Neighbors are the Same Color | Medium |
| 2039 | The Time When the Network Becomes Idle | Medium |
| 2043 | Simple Bank System | Medium |
| 2044 | Count Number of Maximum Bitwise-OR Subsets | Medium |
| 2048 | Next Greater Numerically Balanced Number | Medium |
| 2049 | Count Nodes With the Highest Score | Medium |
| 2054 | Two Best Non-Overlapping Events | Medium |
| 2055 | Plates Between Candles | Medium |
| 2058 | Find the Minimum and Maximum Number of Nodes Between Critical Points | Medium |
| 2059 | Minimum Operations to Convert Number | Medium |