Problem 1804. Fangs of a vampire number

Created by Andrew Newell

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Last Solution submitted on Aug 05, 2020

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Andrew Newell on 14 Aug 2013

Sorry for all the false positives. I have added more test cases.

Evan on 14 Aug 2013

It turns out that the difference in meaning between "not both" and "both not" is critical to this problem. Do'h! Took me a while to figure out where I was going wrong. :P

Jean-Marie Sainthillier on 15 Aug 2013

Exactly what I like in Cody. Interesting and modular problem, with good explanations.
What else ?

Andrew Newell on 15 Aug 2013

Thank you, Jean-Marie! If I have time, I might extend the problem even further.

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Solution 304203

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Tim on 14 Aug 2013

Oops--does not check all conditions--should not have passed.

Solution 304159

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Paul Berglund on 14 Aug 2013

I now see that this is not a valid solution..it has false positives but still passes the test suite :-(

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Problem 1804. Fangs of a vampire number

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Problem 1804. Fangs of a vampire number

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