摘要: 模板 #include <iostream> #include <cstdio> using namespace std; const int N = 100010; int n, c[N], head[N], ver[N << 1], nex[N << 1], tot, cnt[N], num[N 阅读全文
posted @ 2022-07-22 11:25 duoluoluo 阅读(77) 评论(0) 推荐(0)