Amazon Software Engineer Intern interview questions

The interviewer was very unhelpful and not responsive to anything I was doing. The question was fairly doable but confusing, thus I expected at least some response to the code that I was writing, if not guidance, but I got nothing.

After the online assesment, I have booked an interview for a specific timeslot. The recruiter did not come and then, after multiple emails, I was contacted to reschedule the interview with the same recruiter I complained about.