In this video, we introduce how to solve the "Combination Sum" question which is used by big tech companies like Google, Facebook, Amazon in coding interviews. We also cover how to behave during a coding interview, e.g. communication, testing, coding style, etc.
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Problem classification (e.g. data structure, algorithm, company, leetcode) and video link: https://docs.google.com/spreadsheets/d/14aVAyDsQmz50TxhldNV5lmsyvYOJrAT9gzi7sGfMu9k/edit#gid=0
