| No. | Title | Mark |
|---|---|---|
| 95 | Unique Binary Search Trees II | |
| 98 | Validate Binary Search Tree | template |
| 99 | Recover Binary Search Tree | |
| 108 | Convert Sorted Array to Binary Search Tree | design |
| 109 | Convert Sorted List to Binary Search Tree | design |
| 173 | Binary Search Tree Iterator | template |
| 235 | Lowest Common Ancestor of a Binary Search Tree | |
| 285 | Inorder Successor in BST | |
| 426 | Convert Binary Search Tree to Sorted Doubly Linked List | |
| 449 | Serialize and Deserialize BST | design |
| 450 | Delete Node in a BST | template |
| 501 | Find Mode in Binary Search Tree | |
| 509 | Inorder Successor in BST II | |
| 538 | Convert BST to Greater Tree | |
| 784 | Insert into a Binary Search Tree | |
| 1008 | Construct Binary Search Tree from Preorder Traversal | design |