YouTube Software Developer interview questions

Apply it on google, receive the response from recruiter after a weekend and has a 45-minutes Technical interview after three weeks. This was my first interview. I was too nervous and interviewer had an accent, so I waste a lot of time to understand the question itself. The question is to design a class to realize three functions.

The first round was a telephonic interview. A engineer from Google took the interview and we spoke for about 35 minutes. The question was related to word guessing. I was asked to write a simple implementation or pseudocode. I was also asked about my ideas on how to solve the situation in the best possible way. Big-O notation are also important.