Interesting, was that in the EU? I recently had a friend go through the process in the bay area, he didn't get anything harder than easy/medium. I thought that

Interesting, was that in the EU? I recently had a friend go through the process in the bay area, he didn't get anything harder than easy/medium. I thought that Google, at least, was trending to making their algo portion easier as they introduced design questions instead. 2/3 hard questions is pretty crazy and anyone would struggle with that unless they grind a lot like you suggest. Might be you just got really unlucky with the interviewer or there is a culture in that office of asking hard algo questions.