2019年8月19日
可持久化线段树（主席树）
摘要： 主席树留坑 可持久化权值线段树： "区间第k小数" ~~~c++ include include include include include include include include define rep(i,a,b) for(int i=(a);i=(b); i) using names 阅读全文
posted @ 2019-08-19 21:29 zmy蒟蒻 阅读(131) 评论(0) 推荐(0)