摘要:"luogu_3810 " ~~就是将逆序对转化到了三维上去~~ 原理等我寒假再补 第一维sort解决 第二维并归排序(cdq)解决 第三维树状数组 cpp // luogu judger enable o2 include include include include using std::so 阅读全文
posted @ 2019-01-15 14:55 Lance1ot 阅读(140) 评论(0) 推荐(0) 编辑