Microsoft Software Engineer interview questions

I went to a campus recruiting event and got an on-campus interview few weeks later. The email communication went well. However, during my interview, my interviewer first changed my schedule from afternoon to the noon. Then he was 20 min late for the interview and finished earlier.

I had an initial screening by the hiring manager. Then a series of 4 interviews back to back with both devs and a PM. Process took about a month. Mostly technical questions.