2017年4月27日
【线段树+向量】POJ 2991 Crane
摘要： 【Description】 ACM has bought a new crane (crane -- jeřáb) . The crane consists of n segments of various lengths, connected by flexible joints. The end 阅读全文
posted @ 2017-04-27 20:46 Etta19 阅读(216) 评论(0) 推荐(0) 编辑