摘要: 浅谈$K D$ $Tree$: "https://www.cnblogs.com/AKMer/p/10387266.html" 题目传送门: "https://lydsy.com/JudgeOnline/problem.php?id=4358" 把询问当做一个个点,从小到大对于每个权值,在$K D$ 阅读全文
posted @ 2019-02-18 11:17 AKMer 阅读(244) 评论(0) 推荐(0) 编辑