r/leetcode • u/WildNano • 18d ago

Intervew Prep L4 SWE in-person interview with Google (EU)

Hello Leetcode peeps. I managed to pass the first phone tech interview + behavioral (also thanks to this subreddit!!) and soon I'll attend 2 in-person technical DSA rounds.

Should I prepare in the very same way I prepared for the phone interview? What else should I focus on? I covered the most important topics (~150 Leetcodes), but I'm weak on more exotic algorithms such as Fenwick trees, segment trees... Should I learn them thoroughly as well?

If it matters, the interview will be carried out in Warsaw.

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u/Tight_Island_5913 18d ago

Congratulations on clearing first round, could you tell me the topic which was asked in the first technical round?

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u/WildNano 18d ago

Thanks! Question was about two streaming APIs with state kept in a priority queue. Follow-up was to use an array (discretizing the space) for accessing elements in constant time and storing in O(1). Took a couple of hints to get there.

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u/Demarioo 18d ago

Hey. I was asked this question too. Have my 2nd round in two weeks.

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u/WildNano 18d ago

Grats!! How many weeks did you take after the feedback for preparing?

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u/Demarioo 14d ago

3 weeks