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Trees Fundamentals: Structure, Terminology, and Use Cases

What Is a Tree? A Tree is a hierarchical, non‑linear data structure made of nodes. Each node: - Stores a value - Has zero or more children - Has exactly one pa...

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Day 66: Python Invert Binary Tree, Recursive Mirror Swap for Perfect Tree Symmetry (LeetCode #226 Style)

Welcome to Day 66 of the 80DaysOfChallenges journey! This intermediate challenge focuses on inverting a binary tree by recursively swapping left and right child...