BYRBT
摘要: 题目:http://ace.delos.com/usacoprob2?a=GPizy6nCKUy&S=fence3http://pingce.ayyz.cn:9000/usaco/data/20110129214306/fence3.htmlElectric FencesKolstad & SchrijversFarmer John has decided to construct electric fences. He has fenced his fields into a number of bizarre shapes and now must find the opt 阅读全文
posted @ 2012-06-30 22:38 zhonghaoxi 阅读(534) 评论(0) 推荐(1)
BYRBT