I had on-side interview with one FAANG company. I solved 3 algo problems, 1 sys design and 1 behavioral. The feedback after interviews was well/very well for each. But the committee decision was "low efficacy" and overengineered solution. And they might give me additional algo interviews. As far as I understood, it means that it took too long to me to understand the problem and start writing code and my solution was not the simplest possible.
Any advice on how to structure my preparation process for the next week to address this comment?
Maybe recommend some particular problems?