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The Birthday Trick with Lies

The Birthday Trick with Lies

American Mathematical Monthly, 2011
Abstract
Abstract In this article, we determine the number of yes/no questions required to figure out a birthday (a number between 0 and 31) when up to r incorrect answers to these questions are allowed. In the language of error-correcting codes, we construct optimal (shortest possible length) codes of size 32 and minimal distance d for each positive integer d.

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