USACO2.4.2--Overfencing
摘要：
OverfencingKolstad and SchrijversFarmer John went crazy and created a huge maze of fences out in a field. Happily, he left out two fence segments on the edges, and thus created two "exits" for the maze. Even more happily, the maze he created by this overfencing experience is a `perfect' 阅读全文
posted @ 2013-02-14 00:02 仗剑奔走天涯 阅读(219) 评论(0) 推荐(0) 编辑
