摘要： #include <bits/stdc++.h> #define dbg(x) std::cerr << #x << "=" << x << "\n" using i64 = long long; int tot; int prime[100005], vis[100005]; const doub 阅读全文

摘要： #include <bits/stdc++.h> #define dbg(x) std::cerr << #x << "=" << x << "\n" using i64 = long long; const int N = 1e5 + 9; i64 val[N]; int fa[N]; int f 阅读全文

摘要： -51 33 2 #include <bits/stdc++.h> #define dbg(x) std::cerr << #x << "=" << x << "\n" using i64 = long long; struct node { i64 x, y, w; int id, circle, 阅读全文