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题目描述In mathematics, a square number is an integer that is the square of an integer. In other words, it is the product of some integer with itself. For... 阅读全文
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Going from u to v or from v to u?Time Limit: 2000MSMemory Limit: 65536KTotal Submissions: 15812Accepted: 4194DescriptionIn order to make their sons br... 阅读全文
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题目地址：http://poj.org/problem?id=2186Popular CowsTime Limit: 2000MSMemory Limit: 65536KTotal Submissions: 27496Accepted: 11059DescriptionEvery cow's dre... 阅读全文