摘要：
http://poj.org/problem?id=1258 Description Farmer John has been elected mayor of his town! One of his campaign promises was to bring internet connecti 阅读全文
摘要：
http://poj.org/problem?id=1703 Description The police office in Tadu City decides to say ends to the chaos, as launch actions to root up the TWO gangs 阅读全文