| 2196 | Create Binary Tree From Descriptions | Medium |
| 2246 | Longest Path With Different Adjacent Characters | Hard |
| 2265 | Count Nodes Equal to Average of Subtree | Medium |
| 2316 | Count Unreachable Pairs of Nodes in an Undirected Graph | Medium |
| 2322 | Minimum Score After Removals on a Tree | Hard |
| 2328 | Number of Increasing Paths in a Grid | Hard |
| 2331 | Evaluate Boolean Binary Tree | Easy |
| 2359 | Find Closest Node to Given Two Nodes | Medium |
| 2360 | Longest Cycle in a Graph | Hard |
| 2368 | Reachable Nodes With Restrictions | Medium |
| 2385 | Amount of Time for Binary Tree to Be Infected | Medium |
| 2458 | Height of Binary Tree After Subtree Removal Queries | Hard |
| 2467 | Most Profitable Path in a Tree | Medium |
| 2556 | Disconnect Path in a Binary Matrix by at Most One Flip | Medium |
| 2581 | Count Number of Possible Root Nodes | Hard |
| 2596 | Check Knight Tour Configuration | Medium |
| 2641 | Cousins in Binary Tree II | Medium |
| 2646 | Minimize the Total Price of the Trips | Hard |
| 2658 | Maximum Number of Fish in a Grid | Medium |
| 2685 | Count the Number of Complete Components | Medium |
| 2791 | Count Paths That Can Form a Palindrome in a Tree | Hard |