Compute left/right views in one traversal

Q: Compute left/right views in one traversal

This question evaluates understanding of binary tree traversal, specifically computing the left and right views in a single traversal, depth-level boundary tracking, and the ability to contrast iterative versus recursive implementations.

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Question

Given the root of a binary search tree, return two arrays: the left view and the right view (the first and last node visible at each depth). Implement a solution that computes both views in a single traversal. Discuss iterative vs. recursive approaches, how you track depth-level boundaries, and analyze complexity.

Compute left/right views in one traversal

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