摘要: #include<bits/stdc++.h> using namespace std; typedef long long ll; #define ls (l[cnt]) #define rs (r[cnt]) const int N = 100005; struct Ftree { int l[ 阅读全文
posted @ 2020-07-04 20:02 小蒟蒻皮皮鱼 阅读(170) 评论(0) 推荐(0)