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Krypton Factor You have been employed by the organisers of a Super Krypton Factor Contest in which contestants have very high mental an... 阅读全文
posted @ 2014-12-15 21:54
Popco
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Prime Ring Problem A ring is composed of n (even number) circles as shown in diagram. Put natural numbers into each circle separately... 阅读全文
posted @ 2014-12-15 17:02
Popco
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