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The interview started with a telephonic round, which I aced. Then, there were onsite interviews scheduled. As it was Covid time, the onsite interview was conducted via Google Meet. I was shared a document and asked a question involving Tree and Hasht

There was a coding challenge that was followed by a technical phone interview. The coding challenge tested CS knowledge, while the phone interview was more of a think-on-the-fly type of interview.

Phone Interview: The interviewer was 20 minutes late and asked nothing about my resume. Two questions were asked: 1. A string consists of '0', '1', and '?'. The question mark can represent either '0' or '1'. Find all possible combinations for a st