Microsoft Software Developer interview questions

It was a drive - approximately 40 people were called in on a Saturday. Mine was a 12PM slot. Had 4 rounds of interview. After 1st round, some of them were asked to leave. The same happened even after 2nd round. There were outstation candidates too. Their interviews were scheduled little earlier as they had flights to catch. It was 9:30PM by the time I finished my 3rd round. So I was called in on Monday for my Hiring Manager round. After my round, I went to meet the HR and I was made the offer. The letter was rolled out within the next 10days. Overall 6 of us were selected and the hiring process was very friendly.

1 online coding round - fairly easy. 60mins. Need good time management to complete everything. Should write clean code. 4 on-site rounds - 45mins each. Easy questions. Concepts - arrays strings sorting searching heap