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Grokking the Coding Interview Patterns in Go

Validate Binary Search Tree

Explore how to validate a binary search tree by ensuring each node's left subtree contains smaller keys and the right subtree contains larger keys. Learn to apply depth-first search techniques to solve this common tree problem accurately in coding interviews.

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Statement

Given the root of a binary tree, check whether it is a valid binary search tree (BST).

A binary tree is a valid BST ...