I'm just going to describe the experience and not disclose any of the questions asked since I signed an NDA. In total I had four back to back interviews and overall I had a good time.

Interview 1:
I believe this was the bar raiser since he had the most experience amoung the group, but this round was a system design. I utterly blanked on this round entirely and had no clue where to even start with the problem. So my bet is because of this I failed it most likely. There was also 2 LP questions asked and in the end we still had about 10 minutes for me to ask him questions about the company.

Interview 2:
This was by far my best round it was an algorithm and data structure round. The problem centered around a graph and file systems that is all I'm going to say. I was able to come up with the solution fairly question and present my idea and walk through it with the interviewer. There was also asked 4LP questions and we had about 15 minutes where I got to ask him questions.

Interview 3:
This was an alright round. I was given a problem and I made a lot of assumptions that I should have cleared up and if I had I would have come to the solution a lot sooner than I had. I was also asked 2 LP questions.

Interview 4:
This was a good round the question was pretty straight forward and was related to strings and how to manipulate them. Was able to come up with a fairly time and space effiecient solution and present it to them. Also was asked 3 LP questions this round and had about 10 minutes where I could ask him questions.

This experience taught me a lot, but I'm kinda bummed out that I was rejected. I was hoping maybe my other rounds would make up for my awful system design round but seems like not. Oh well looks like I'll be practicing a bit more on my algorithms and system design before my next interview.