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High-signal articles on system design, algorithms, career strategy, and engineering craft. Written by engineers who've been there.
Learn how to solve the rotated sorted array problem in O(log n) — including what interviewers really look for, common mistakes that cost candidates the offer, and exactly how to talk through it.
Most candidates overthink this problem and fall into classic binary search traps. Here's the clean lower_bound/upper_bound approach that interviewers love.