Google

I applied via careers, and a recruiter reached out to me. They are planning to move forward with my profile to schedule a loop interview, which consisted of a total of 4 rounds over multiple days.

It was stressful, given that it was Google. Make sure you sleep well the night before the onsite. The questions were medium and hard, most involving arrays, DP, and recursion. Ask a lot of questions and stop for a moment to think and to make sure you

There were a number of separate interviews with separate developers throughout the day, including a lunch-time, non-counting interview. The questions were all about puzzles that you could easily look up (I had seen them all before in various books).