Trees appear in of Meta interviews. Binary Tree Vertical Order Traversal has been the most asked tree problem in the last months. In this section, I'll walk you through Meta's favorite tree problems with exact frequencies and patterns. You'll learn when to use BFS versus DFS, how to handle the Lowest Common Ancestor in multiple variants, and why Meta loves asking about tree serialization. These patterns transfer directly to graph problems, making this section foundational.
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$ curl repovive.com/roadmaps/meta-interview-prep/trees/intro
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