摘要: [模板](https://www.luogu.com.cn/problem/P5180) ``` #include #include using namespace std; const int N = 200010, M = 300010; int n, m, ans[N], head[N][3] 阅读全文
posted @ 2023-08-10 01:24 duoluoluo 阅读(5) 评论(0) 推荐(0) 编辑
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