Zeta Senior Software Engineer interview questions

This was the first round of interview. I was asked 2 questions: one was regarding the designing of data structure with O(1) time complexity. The interviewer helped me a bit with hints. I was successfully able to solve this with the given constraints. For the other question however I couldn't arrive at an optimized approach. Maybe that's why I got rejected after the first round.

HR will call you like mad when they want to schedule your interviews or when they want any update from you end, but once they realise that either the position is closed or you are asking very high CTC, they will ghost you like anything. They won't reply to your SMS or emails or calls, if in case by mistake they pick your call, they will disconnect the call as soon as they hear your name. Their behaviour tells a lot about their culture. Stay away from such toxic organisations.