摘要: 法一:dsu #include <bits/stdc++.h> using ll = long long; using namespace std; const int N = 100010; struct node { int v, nxt; }e[N * 2]; int h[N], idx; i 阅读全文
posted @ 2022-11-23 19:45 浅渊 阅读(43) 评论(0) 推荐(0)