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Backend Engineer Interview Questions
Practice 9403 coding, system design and machine learning questions from 546 companies, sorted by role, topic and interview round. Every question has step-by-step hints, a code runner that supports 8 languages and an AI mentor; members also get the full solution walkthrough.
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- ByteDanceHardBackend EngineerSQL: Students Above Average and Passing Every Subject
This problem tests advanced SQL skills, including the use of window functions, conditional aggregation, and multi-level filtering to identify subsets of data that satisfy both global and per-category criteria.
Data Manipulation (SQL/Python)Technical ScreenSQLAggregationWindow-Functions