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摘要: #include<bits/stdc++.h> using namespace std; const int N = 1e5 + 5; //树 struct tree{ int to[N << 1], nxt[N << 1], hd[N], idx, w[N << 1]; void add(int 阅读全文
posted @ 2025-10-31 22:13 Hty111 阅读(2) 评论(0) 推荐(0)