Microsoft Software Development Engineer interview questions

First there was a Skype interview with questions about what have you worked on before and some about testing, for example how would you test a pencil. After that they invite you to interview and pay you the trip. There are 3-4 interviews. You can get an offer after 3 and after 4, or you can get rejected after 3 and after 4. 4th interview is just if they think they need one more interview to make a decision. Interviews last for 45min and have around 10min break in between. The questions depends on who interviews you, but in general almost all of them ask how would you test something. The algorithmic questions are some basic algorithms. You can of course use any programming language, but the ones with object oriented paradigm are recommended. The correct names of the methods and parameters are not that important.

I applied last October, had an on-campus interview a couple weeks later, then they flew me up to Seattle beginning of January. I was surprised how long the interview process took. The first interview was short, 30-45 minutes. The final round of interviews took most of the day. There were 3 interviews(however the number can range from 2-5 depending on who scheduled them for you), each lasting maybe an hour, maybe more. They told me the following week that I didn't get the job. The questions ranged from difficult to easy. It never felt like a grueling test, it felt more like a conversation about algorithms. Unfortunately, on the harder questions, I was the person who didn't know the topic too well.