Q278 First Bad Version
Q278 First Bad Version

You are a product manager and currently leading a team to develop a new
product. Unfortunately, the latest version of your product fails the
quality check. Since each version is developed based on the previous
version, all the versions after a bad version are also bad.

Suppose you have n versions [1, 2, ..., n] and you want to find out the
first bad one, which causes all the following ones to be bad.

You are given an API bool isBadVersion(version) which will return
whether version is bad. Implement a function to find the first bad
version. You should minimize the number of calls to the API.

robertzm/algotest