They gave me a packet of things my interviews could cover, all of which I was already pretty familiar with.

The onsite interviews focused mainly on technical problem-solving, communication, and teamwork.

It's all on LeetCode. The difficulty is similar to the skyline problem.

Unless you want to do 500-ish practice interview problems beforehand, they're probably going to ask you something you haven't seen before.

They're not looking for people who can whip out the super-optimized solution on the spot; they're looking for people who can work through the problem with the interviewer and write out a solution that works.

The domain knowledge questions were all covered in the preparation packet thing.