摘要:
"传送门" 直接莫队即可。 cpp include include include include define MAXN 50005 struct Node { int l,r,num,ans; }G[MAXN]; int book[MAXN]; int cur[MAXN],rec[MAXN]; 阅读全文
摘要:
"传送门" 发现最多只有20行,所以开20个线段树处理即可。当然存在更优的做法,就是一行接着一行,变成一个线段树,节省空间。 cpp include include include define MAXN 1000006 define lson (rt 1) define sizel (((l+r) 阅读全文