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Solution: First Bad Version

Explore how to apply a modified binary search to identify the first bad software version in a sorted sequence, minimizing calls to the version-check API. This lesson guides you through the step-by-step implementation, highlights the time and space complexity advantages, and helps you master this common interview problem pattern.

Statement

You are managing a product development team, and the latest release has failed quality checks. Because each version is built on top of the previous one, once a version is bad, every version after it is also bad.

You are given an array of n versions [1,2,,n][1, 2, …, n] ...