2014年3月16日
zoj 1002 Fire Net (二分匹配)
摘要： Fire NetTime Limit:2 Seconds Memory Limit:65536 KBSuppose that we have a square city with straight streets. A map of a city is a square board with n rows and n columns, each representing a street or a piece of wall.A blockhouse is a small castle that has four openings through which to shoot. The fou 阅读全文
posted @ 2014-03-16 19:33 heaventouch 阅读(476) 评论(0) 推荐(0)