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1030. Travel Plan (30)A traveler's map gives the distances between cities along the highways, together with the cost of each highway. Now you are supp... 阅读全文
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1010. Radix (25)Given a pair of positive integers, for example, 6 and 110, can this equation 6 = 110 be true? The answer is "yes", if 6 is a decimal n... 阅读全文
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1003. Emergency (25)As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities ... 阅读全文