Binary Tree Preorder Traversal (Iterative) - Leetcode 144 - Java
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Binary Tree Preorder Traversal (Iterative) - Leetcode 144 - Java
In this video, we master the Iterative approach for Preorder Traversal (Root → Left → Right). While recursion is often the go-to for tree problems, interviewers frequently ask for an iterative solution using a Stack to test your understanding of how the call stack actually works under the hood. The Strategy: Why Use a Stack? Since Preorder ...
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