随笔分类 -  二分、分治

☆SHOI2007园丁的烦恼
摘要：园丁的烦恼 【题意】$m$个询问，回答每个询问中$(a,b)到(c,d)$内的点数。 【解题】$CDQ$分治求二位偏序 / 树状数组， ~~被某大佬称为$CDQ$ caiji板子题？~~ 【代码】 阅读全文
posted @ 2019-11-07 01:30 QUEKI嶺冬 阅读(164) 评论(0) 推荐(0)
Luogu P1873 砍树 （二分）
摘要：二分板子 阅读全文
posted @ 2019-11-05 11:13 QUEKI嶺冬 阅读(173) 评论(0) 推荐(0)

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