Google Software Engineer II interview questions

The process was long, but generally pleasant. A recruiter contacted me and we had a short call to discuss the position and my availability and experience. We scheduled an interview for three weeks later. On the interview, I waited for the interviewer for 40 minutes and e-mailed one of the coordinators to check what was wrong. They sent me an explanation that the interviewer could not attend, but I had already been waiting for the duration of what was supposed to be the interview. We rescheduled and the interview was held the next week. There was a mixup again, since they had not sent me an invitation for the online meeting. The interviewer was very nice and helpful, although I don't feel like I did too well. We had a brief introduction chat. He posed the question, explained the terms he used, gave me good tips and answered my questions at the end. I received feedback two and a half weeks later, after asking.