摘要: #include <bits/stdc++.h> using namespace std; const int N = 1e6; int n, m; int st[N]; struct node { int val; int fa; int ch[2]; bool r; int sum; } t[N 阅读全文
posted @ 2020-10-20 20:45 月夭 阅读(72) 评论(0) 推荐(0) 编辑