2014年1月23日
POJ 2553 The Bottom of a Graph
摘要： DescriptionWe will use the following (standard) definitions from graph theory. Let V be a nonempty and finite set, its elements being called vertices (or nodes). Let E be a subset of the Cartesian product V×V, its elements being called edges. Then G=(V,E) is called a directed graph. Let n be a 阅读全文
posted @ 2014-01-23 15:25 chen2013 阅读(251) 评论(0) 推荐(0)