Trees are where structure meets strategy. This course builds strong, interview-ready intuition for reasoning about hierarchy, recursion, and invariants in tree-based problems.

From BST validation and traversal to reconstruction, balancing, LCA, and advanced structures like tries and AVL trees, you’ll learn how to break tree problems into clean cases and explain solutions with confidence. By the end, tree questions feel systematic instead of intimidating—giving you a decisive edge in technical interviews.