| 207 | Course Schedule | Medium |
| 310 | Minimum Height Trees | Medium |
| 329 | Longest Increasing Path in a Matrix | Hard |
| 802 | Find Eventual Safe States | Medium |
| 851 | Loud and Rich | Medium |
| 913 | Cat and Mouse | Hard |
| 1203 | Sort Items by Groups Respecting Dependencies | Hard |
| 1462 | Course Schedule IV | Medium |
| 1591 | Strange Printer II | Hard |
| 1632 | Rank Transform of a Matrix | Hard |
| 1719 | Number Of Ways To Reconstruct A Tree | Hard |
| 1728 | Cat and Mouse II | Hard |
| 1786 | Number of Restricted Paths From First to Last Node | Medium |
| 1857 | Largest Color Value in a Directed Graph | Hard |
| 1916 | Count Ways to Build Rooms in an Ant Colony | Hard |
| 1976 | Number of Ways to Arrive at Destination | Medium |
| 2050 | Parallel Courses III | Hard |
| 2115 | Find All Possible Recipes from Given Supplies | Medium |
| 2127 | Maximum Employees to Be Invited to a Meeting | Hard |
| 2192 | All Ancestors of a Node in a Directed Acyclic Graph | Medium |
| 2246 | Longest Path With Different Adjacent Characters | Hard |
| 2328 | Number of Increasing Paths in a Grid | Hard |
| 2360 | Longest Cycle in a Graph | Hard |
| 2392 | Build a Matrix With Conditions | Hard |
| 2603 | Collect Coins in a Tree | Hard |