2017年1月13日
【bzoj1645】[Usaco2007 Open]City Horizon 城市地平线 离散化+线段树
摘要： 题目描述 Farmer John has taken his cows on a trip to the city! As the sun sets, the cows gaze at the city horizon and observe the beautiful silhouettes fo 阅读全文
posted @ 2017-01-13 10:26 GXZlegend 阅读(407) 评论(0) 推荐(0) 编辑