Pattern 22: LeetCode Interview Patterns24 sections · 736 units
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Quiz: BST Validation Pitfall

Test your understanding

Check Your Understanding

Why is checking only "left child < node < right child" not enough to validate a BST?

  1. A.It is enough - that check is sufficient
  2. B.A node in the left subtree could be greater than an ancestor
  3. C.BSTs don't have this property
  4. D.The root node has no parent to check against
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