It was a one-day hiring drive.

They conducted two rounds on the same day:

• System design
• Coding round

The difficulty was moderate. Both interviews went quite well.

However, the HR never reached out again, and they did not reply to my emails or calls.

This was pretty unprofessional treatment from the hiring managers' end. At least they should have sent an automated rejection or some feedback. Given that my interviews went well, I was expecting some response from them.

The coding question was a simple permutation-related problem that could be solved using recursion.