From 2600cf97f9270e90ba47843b3a53bb9ee49367d9 Mon Sep 17 00:00:00 2001 From: Baoshuo Date: Thu, 9 Feb 2023 21:24:20 +0800 Subject: [PATCH] =?UTF-8?q?#1905.=20=E3=80=90AHOI2013=E3=80=91=E8=BF=9E?= =?UTF-8?q?=E9=80=9A=E5=9B=BE?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit https://sjzezoj.com/submission/68776 --- S2OJ/1905/1905.cpp | 109 +++++++++++++++++++++++++++++++++++ S2OJ/1905/data/connect1.in | 3 + S2OJ/1905/data/connect1.out | 3 + S2OJ/1905/data/connect10.in | 3 + S2OJ/1905/data/connect10.out | 3 + S2OJ/1905/data/connect11.in | 3 + S2OJ/1905/data/connect11.out | 3 + S2OJ/1905/data/connect12.in | 3 + S2OJ/1905/data/connect12.out | 3 + S2OJ/1905/data/connect13.in | 3 + S2OJ/1905/data/connect13.out | 3 + S2OJ/1905/data/connect14.in | 3 + S2OJ/1905/data/connect14.out | 3 + S2OJ/1905/data/connect15.in | 3 + S2OJ/1905/data/connect15.out | 3 + S2OJ/1905/data/connect16.in | 3 + S2OJ/1905/data/connect16.out | 3 + S2OJ/1905/data/connect17.in | 3 + S2OJ/1905/data/connect17.out | 3 + S2OJ/1905/data/connect18.in | 3 + S2OJ/1905/data/connect18.out | 3 + S2OJ/1905/data/connect19.in | 3 + S2OJ/1905/data/connect19.out | 3 + S2OJ/1905/data/connect2.in | 3 + S2OJ/1905/data/connect2.out | 3 + S2OJ/1905/data/connect20.in | 3 + S2OJ/1905/data/connect20.out | 3 + S2OJ/1905/data/connect3.in | 3 + S2OJ/1905/data/connect3.out | 3 + S2OJ/1905/data/connect4.in | 3 + S2OJ/1905/data/connect4.out | 3 + S2OJ/1905/data/connect5.in | 3 + S2OJ/1905/data/connect5.out | 3 + S2OJ/1905/data/connect6.in | 3 + S2OJ/1905/data/connect6.out | 3 + S2OJ/1905/data/connect7.in | 3 + S2OJ/1905/data/connect7.out | 3 + S2OJ/1905/data/connect8.in | 3 + S2OJ/1905/data/connect8.out | 3 + S2OJ/1905/data/connect9.in | 3 + S2OJ/1905/data/connect9.out | 3 + S2OJ/1905/data/problem.conf | 3 + S2OJ/1905/data/std.cpp | 3 + S2OJ/1905/data/val.cpp | 3 + 44 files changed, 238 insertions(+) create mode 100644 S2OJ/1905/1905.cpp create mode 100644 S2OJ/1905/data/connect1.in create mode 100644 S2OJ/1905/data/connect1.out create mode 100644 S2OJ/1905/data/connect10.in create mode 100644 S2OJ/1905/data/connect10.out create mode 100644 S2OJ/1905/data/connect11.in create mode 100644 S2OJ/1905/data/connect11.out create mode 100644 S2OJ/1905/data/connect12.in create mode 100644 S2OJ/1905/data/connect12.out create mode 100644 S2OJ/1905/data/connect13.in create mode 100644 S2OJ/1905/data/connect13.out create mode 100644 S2OJ/1905/data/connect14.in create mode 100644 S2OJ/1905/data/connect14.out create mode 100644 S2OJ/1905/data/connect15.in create mode 100644 S2OJ/1905/data/connect15.out create mode 100644 S2OJ/1905/data/connect16.in create mode 100644 S2OJ/1905/data/connect16.out create mode 100644 S2OJ/1905/data/connect17.in create mode 100644 S2OJ/1905/data/connect17.out create mode 100644 S2OJ/1905/data/connect18.in create mode 100644 S2OJ/1905/data/connect18.out create mode 100644 S2OJ/1905/data/connect19.in create mode 100644 S2OJ/1905/data/connect19.out create mode 100644 S2OJ/1905/data/connect2.in create mode 100644 S2OJ/1905/data/connect2.out create mode 100644 S2OJ/1905/data/connect20.in create mode 100644 S2OJ/1905/data/connect20.out create mode 100644 S2OJ/1905/data/connect3.in create mode 100644 S2OJ/1905/data/connect3.out create mode 100644 S2OJ/1905/data/connect4.in create mode 100644 S2OJ/1905/data/connect4.out create mode 100644 S2OJ/1905/data/connect5.in create mode 100644 S2OJ/1905/data/connect5.out create mode 100644 S2OJ/1905/data/connect6.in create mode 100644 S2OJ/1905/data/connect6.out create mode 100644 S2OJ/1905/data/connect7.in create mode 100644 S2OJ/1905/data/connect7.out create mode 100644 S2OJ/1905/data/connect8.in create mode 100644 S2OJ/1905/data/connect8.out create mode 100644 S2OJ/1905/data/connect9.in create mode 100644 S2OJ/1905/data/connect9.out create mode 100644 S2OJ/1905/data/problem.conf create mode 100644 S2OJ/1905/data/std.cpp create mode 100644 S2OJ/1905/data/val.cpp diff --git a/S2OJ/1905/1905.cpp b/S2OJ/1905/1905.cpp new file mode 100644 index 00000000..dbe90cde --- /dev/null +++ b/S2OJ/1905/1905.cpp @@ -0,0 +1,109 @@ +#include +#include +#include +#include +#include +#include +#include + +using std::cin; +using std::cout; +const char endl = '\n'; + +const int N = 1e5 + 5, + M = 2e5 + 5; + +int n, m, q, s[N], d[M]; +std::mt19937 rng(std::random_device{}()); +std::vector> g[N]; +bool vis[N]; + +template +class liner_base : private std::vector { + public: + liner_base() + : std::vector(std::numeric_limits::digits + 1, 0) {} + + bool insert(T w) { + for (int i = std::numeric_limits::digits; i >= 0; --i) { + if (!(w >> i)) continue; + + if (!this->at(i)) { + this->at(i) = w; + + return true; + } + + w ^= this->at(i); + } + + return false; + } + + T query_min(T w) { + for (int i = std::numeric_limits::digits; i >= 0; --i) { + if (!((w >> i) & 1)) continue; + + w ^= this->at(i); + } + + return w; + } +}; + +void dfs(int u, int f) { + vis[u] = true; + + for (auto e : g[u]) { + int v = e.first, + id = e.second; + + if (!vis[v]) { + dfs(v, u); + + s[u] ^= s[v]; + d[id] ^= s[v]; + } else if (v != f && !d[id]) { + d[id] = rng(); + + s[u] ^= d[id]; + s[v] ^= d[id]; + } + } +} + +int main() { + std::ios::sync_with_stdio(false); + cin.tie(nullptr); + + cin >> n >> m; + + for (int i = 1, u, v; i <= m; i++) { + cin >> u >> v; + + g[u].emplace_back(v, i); + g[v].emplace_back(u, i); + } + + dfs(1, 1); + + cin >> q; + + while (q--) { + int c; + liner_base lb; + bool ans = true; + + cin >> c; + + for (int i = 1, x; i <= c; i++) { + cin >> x; + + ans &= lb.insert(d[x]); + } + + cout << (ans ? "Connected" : "Disconnected") << endl; + } + + return 0; +} diff --git a/S2OJ/1905/data/connect1.in b/S2OJ/1905/data/connect1.in new file mode 100644 index 00000000..ab68047a --- /dev/null +++ b/S2OJ/1905/data/connect1.in @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:1db807a2126542fe24e45dcaf47021d8183a599245c22bb5f520178ffa3f7cfb +size 4303220 diff --git a/S2OJ/1905/data/connect1.out b/S2OJ/1905/data/connect1.out new file mode 100644 index 00000000..f565708a --- /dev/null +++ b/S2OJ/1905/data/connect1.out @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:c53094d75fdc44a39100dba15aafb9d689eee94ea1e0188b41187fdcee79c88c +size 1101202 diff --git a/S2OJ/1905/data/connect10.in b/S2OJ/1905/data/connect10.in new file mode 100644 index 00000000..554ed9ac --- /dev/null +++ b/S2OJ/1905/data/connect10.in @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:d731f2ab74d13d6ee18d14062bba0a025a55a2c269b53b575ae4d4501d60e4cc +size 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