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Solution: First Bad Version

Explore how to identify the earliest bad software version in a sequential release series by applying a modified binary search. This lesson helps you understand reducing the problem search space logarithmically, minimizing API checks, and improving time complexity from linear to logarithmic. Gain practical skills to implement this algorithm with constant space and optimal runtime.

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] ...