Microsoft Software Engineer interview questions

I was referred by a friend. Microsoft contacted me to schedule an interview at my University before potentially flying me out. The first 15 minutes was devoted to my interests and experience, then I was asked at technical question.

Total 5 rounds. All rounds technical, each round concentration on one area. Many logical algo question. Which language to use to write the code not an issue. Some rounds concentrated on complete writing of code. Some just wanted the right logic.