摘要: "Rikka with Cake" c++ pragma GCC optimize(2) include using namespace std; const int maxn=2e5+10; struct node{ int x,y; char dir; }a[maxn]; int _,n,m,k 阅读全文
posted @ 2019-08-19 17:54 Snow_in_winer 阅读(131) 评论(0) 推荐(0) 编辑
摘要: 【模板】可持久化并查集 阅读全文
posted @ 2019-08-19 09:37 Snow_in_winer 阅读(148) 评论(0) 推荐(0) 编辑