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After initial contact from HR, I had a technical phone interview. The interviewer was not ready. First, at the interview time, he called me to say he was still at home and would call back in one hour. An hour later, he was ready but not prepared.

It sounds like you went through a comprehensive interview process! You had: * Three Data Structures and Algorithms (DSA) rounds, each lasting an hour * A system design round * A managerial round.

I had one telephonic round. I was asked one medium-level question. The interviewer was very helpful. After that, I had an onsite round which consisted of four interviews and one lunch (lunch was not counted towards my assessment). The questions wer