The interviewer started by introducing themselves and the team. I then spent some time explaining my current projects and going into detail about an end-to-end system I'm working on, including the challenges I've encountered. The key technical question was: Wh...
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The first coding question was: Given following records (operation, twitter_space, user, timestamp), return the total active hours of each twitter space. ``` Input: ["create", "abc", "user_1", "1234567000] ["join", "abc", "user_2", "1234567100] ["leave", "abc",...
I recently interviewed for a Backend SWE position at xAI and was rejected after the final round. **Round 1 & 2:** Both were coding rounds focusing on standard LeetCode mediums. - Round 1: Sorted matrix search. - Round 2: String manipulation problem with a DP c...
