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Solution: Univalued Binary Tree

Understand how to solve the uni-valued binary tree problem by applying a depth-first search approach. This lesson guides you in checking whether all nodes share the same value recursively and explains the algorithm's time and space complexity. Gain skills to analyze tree problems effectively using the DFS pattern.

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Statement

A binary tree is considered uni-valued if every node in the tree contains the same value.

Given the root of a binary tree, return TRUE if the tree is uni-valued, or FALSE otherwise.

Constraints:

  • The number of nodes in the tree is in the range [1,100][1, 100].

  • 0≤0 \leq ...