BST Operations (Insert, Delete, Validate) Problems
19 BST Operations (Insert, Delete, Validate) problems on LeetCode, a Trees interview pattern, ranked by importance (how often it comes up in real interviews). Difficulty (ELO) and importance shown per problem.
| # | PROBLEM | DIFF | ELO | IMP | PATTERNS |
|---|---|---|---|---|---|
| 1 | Validate Binary Search Tree | Easy | 1342 | 90 | DFS Traversal (Inorder, Preorder, Postorder) |
| 2 | Delete Node in a BST | Medium | 1476 | 82 | DFS Traversal (Inorder, Preorder, Postorder) |
| 3 | Insert into a Binary Search Tree | Easy | 1152 | 78 | |
| 4 | Construct Binary Search Tree from Preorder Traversal | Medium | 1563 | 72 | DFS Traversal (Inorder, Preorder, Postorder) · Monotonic Stack |
| 5 | Inorder Successor in BSTPREMIUM | Easy | 1378 | 71 | DFS Traversal (Inorder, Preorder, Postorder) |
MORE TREES PATTERNS
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