Google Staff Software Engineer interview questions

Coding interview with two non-real life tasks to solve in less than an hour. The first one was discussion and coding. The second was just a discussion on how could I approach the problem. I've presented solutions to both of the problems but got feedback afterwards that it's not enough for this position. I'm not sure what that is supposed to mean but I find this interview waste of time.

The interview process was conducted in a timely manner. They respected my time, and even though I didn't get the job, I still felt like they gave me a fair chance, and supported me during the process.