It wasn't a sarcastic answer and the problem can be reasonably solved. I gave this test to potential employees, most of the candidates were able to solve the problem which isn't surprising giving the job they were applying for.
sooo give it up. Mark solved it. There is an answer and he posted the correct one. You couldn't even begin to solve the problem. Admit it.
I'm not saying it's a big deal you couldn't because not everybody has the same talents in every area. Also, no one is expert at everything ("I can pass any test".). But I wish I could impart you with the knowledge that everyone has value, everyone has something special to offer and every individual should be respected.
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