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Algorithms & Data Structures Intermediate Pro

Trees

Master recursive thinking on the data structure that models hierarchy itself

60 min read 0 views

Learn how binary trees are built, traversed, and reasoned about recursively, then apply that thinking to search, balance, path, reconstruction, and serialization problems. Covers inversion, balance checks, level-order views, BST validation, lowest common ancestor, traversal-based reconstruction, max path sum, symmetry, vertical order, kth-smallest, and serialization.

Practice questions (12)

  • Invert Binary Tree

    Beginner
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  • Balanced Binary Tree Validation

    Intermediate
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  • Rightmost Nodes of a Binary Tree

    Intermediate
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  • Widest Binary Tree Level

    Advanced
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  • Binary Search Tree Validation

    Intermediate
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See all 12 questions →

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