5714脑筋急转弯困难brainteaserlong

Twenty Questions With One Lie

题目

An adversary picks a secret integer from 1 to 16 inclusive. You ask yes/no questions chosen adaptively, but the adversary is allowed to answer FALSELY at most once during the whole game (it may also never lie). What is the minimum number of questions that GUARANTEES you can determine the secret number in the worst case?

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