摘要: Assume you have k<=10^5 intervals [a_i, b_i] \in [1,10^18] (some of them may overlap), and you need to choose a set of intervals mutually disjoint suc 阅读全文
posted @ 2019-08-23 15:11 北叶青藤 阅读(474) 评论(0) 推荐(0)