A one question HackerRank challenge, medium difficulty but need to deal with many details. My submitted code pass all test cases and use efficient data structure, but I got a rejection email with "The results of your testing did not meet our minimum requirements to move forward in our process" They don't care how you solve the challenge. They send assessments for fun, as others reported here in Glassdoor.

1. First round was an online assessment about front runner detection which was quite simple. It was based on simple OOPs foundation and basic data structure knowledge. 2. Second round was just an half an hour call about the basics of Python. The questions were simple but. checked if you had a clear understanding of Python 3. Third round was supposed to be a coding round, probably with Behavioral round. But it was cancelled 2 days before the interview date stating that the position was filled.