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Maximum Depth of Binary Tree

Explore how to determine the maximum depth of a binary tree with depth-first search. This lesson guides you in identifying the longest path from root to leaf, understanding node counting, and implementing an efficient O(n) time and space solution to solve this common tree problem.

Statement

You are given the root of a binary tree, and your task is to determine the maximum depth of this tree. The maximum depth of a binary tree is determined by the count of nodes found on the longest path from the root node to the farthest leaf node.

Constraints:

  • The number of nodes in the tree is in the range [1 ...