摘要: #include<cstdio> #include<algorithm> #include<ctime> using namespace std; int n,m,root,tot = 0; struct tree{ int ls,rs,v,siz,rnd,tag; }tr[100005]; int 阅读全文
posted @ 2021-09-17 12:49 RiverSheep 阅读(35) 评论(0) 推荐(0)