Meta Software Engineer interview questions

The interview lasts 60 mins. First he introduced where he was working at and then ask for more details about my projects on my resume. Then he posted a technical question. I first discussed the solution to him and wrote it in C++. After all, I asked some questions like the daily responsibilities on that position.

First, ask some questions about Facebook, do you use Facebook? Why you like it? Which part of it should be improved? and the begin to the coding part. It is a question about CVS encoding and decoding. It took me several minutes to understand the question, and I am too nervous to come up with a perfect solution. it is my first interview and I think I should learn more.