Putnam 2014 B2

B2

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nice

You beat me to it, and I completed this question with the same method!

Edit: I posted my solution after all, in case anyone is interested.


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Fantastic effort both of you @mon1 @Mathematicality!!

It’s so important that people post multiple solutions. In the long run if this place grows properly, this will be very common, and strongly encouraged!!

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