Microsoft Software Developer Student interview questions

I got the interview via a referral from a friend. I had 2 phone interviews, and 2 on-site interviews on separate days. The first phone interview was with HR. Then I had another technical phone interview, where we mostly talked about my resume and I was asked some basic computer science knowledge + my projects. Then I had an onsite technical interview that was about 1.5 hours long, started with some leetcode style questions for warmup, followed by a big question where I was asked to design a kind of dictionary/spell checking system. After the questions we just talked about the possible teams I might join and played some Xbox to see some of the features that were created by the interviewer's team. after about 1-2 weeks I was invited to another interview. In this interview, I was stressed and messed up, but this was a longer interview about 2.5 hours, where most of the time was dedicated to designing some caching solutions.

HR + 2 technical interview, every thing was nice, before the first i needed to past a test on codility with three quations, you can choose the languge you want to write the answers.