Bloomberg Software Developer interview questions

Interview process not transparent at all. Aced all offsite and onsite (final) round of interview and still was rejected, which is fine. When I asked for a feedback, they said it's confidential and I should feel free to apply after 6 months. I replied I will not apply because I won't work for a company who can't even give a feedback

10 mins self-intro and BQ 30 mins coding, 2 hardish-medium problems, you need to finish both of these problems in only 30 mins, including writing code, explaining and calculating time complexity. I think this is for seeking ACMer but not engineers. 5 mins asking questions