摘要：
Description Farmer John is an astounding accounting wizard and has realized he might run out of money to run the farm. He has already calculated an... 阅读全文
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Description Every year the cows hold an event featuring a peculiar version of hopscotch that involves carefully jumping from rock to rock in a rive... 阅读全文
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Problem Description Give you three sequences of numbers A, B, C, then we give you a number X. Now you need to calculate if you can find the three... 阅读全文
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Problem Description The Princess has been abducted by the BEelzebub feng5166, our hero Ignatius has to rescue our pretty Princess. Now he gets int... 阅读全文