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From:
code.dblock.org | tech blog
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I Failed to Implement the Diameter of a Binary Tree in a Coding Interview – code.dblock.org | tech blog
https://code.dblock.org/2025/06/21/i-failed-to-implement-the-diameter-of-a-binary-tree-in-a-coding-interview.html
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Six months ago I failed a basic coding interview at a FAANG. Yes, I was a Principal Engineer, and yes, I was paid absurd amounts of money, yet I couldn’t implement a diameter of a binary tree as a “warm up” exercise, 10 lines of code.
