結果
問題 | No.2780 The Bottle Imp |
ユーザー | ir5 |
提出日時 | 2024-06-21 00:56:51 |
言語 | C++23(gcc13) (gcc 13.2.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 177 ms / 2,000 ms |
コード長 | 4,457 bytes |
コンパイル時間 | 2,230 ms |
コンパイル使用メモリ | 153,608 KB |
実行使用メモリ | 31,528 KB |
最終ジャッジ日時 | 2024-06-21 00:56:58 |
合計ジャッジ時間 | 6,557 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 3 ms
6,944 KB |
testcase_07 | AC | 85 ms
15,872 KB |
testcase_08 | AC | 91 ms
16,000 KB |
testcase_09 | AC | 89 ms
15,976 KB |
testcase_10 | AC | 98 ms
15,844 KB |
testcase_11 | AC | 96 ms
15,872 KB |
testcase_12 | AC | 177 ms
27,036 KB |
testcase_13 | AC | 158 ms
27,120 KB |
testcase_14 | AC | 58 ms
11,392 KB |
testcase_15 | AC | 58 ms
11,520 KB |
testcase_16 | AC | 60 ms
11,408 KB |
testcase_17 | AC | 60 ms
11,520 KB |
testcase_18 | AC | 60 ms
11,392 KB |
testcase_19 | AC | 59 ms
11,392 KB |
testcase_20 | AC | 58 ms
11,280 KB |
testcase_21 | AC | 61 ms
11,264 KB |
testcase_22 | AC | 32 ms
7,808 KB |
testcase_23 | AC | 48 ms
9,600 KB |
testcase_24 | AC | 70 ms
13,696 KB |
testcase_25 | AC | 139 ms
21,352 KB |
testcase_26 | AC | 64 ms
11,648 KB |
testcase_27 | AC | 37 ms
10,020 KB |
testcase_28 | AC | 36 ms
10,020 KB |
testcase_29 | AC | 44 ms
13,036 KB |
testcase_30 | AC | 35 ms
12,452 KB |
testcase_31 | AC | 63 ms
13,952 KB |
testcase_32 | AC | 29 ms
10,240 KB |
testcase_33 | AC | 72 ms
17,880 KB |
testcase_34 | AC | 91 ms
31,528 KB |
testcase_35 | AC | 24 ms
8,576 KB |
testcase_36 | AC | 2 ms
6,940 KB |
testcase_37 | AC | 2 ms
6,940 KB |
testcase_38 | AC | 24 ms
8,576 KB |
testcase_39 | AC | 59 ms
13,568 KB |
testcase_40 | AC | 59 ms
13,572 KB |
testcase_41 | AC | 61 ms
13,572 KB |
testcase_42 | AC | 2 ms
6,944 KB |
testcase_43 | AC | 2 ms
6,944 KB |
ソースコード
#include <algorithm> #include <cassert> #include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #include <iostream> #include <numeric> #include <vector> #include <map> #include <set> #include <queue> #include <functional> #include <iomanip> using namespace std; using ll = long long; class range {private: struct I{int x;int operator*(){return x;}bool operator!=(I& lhs){return x<lhs.x;}void operator++(){++x;}};I i,n; public:range(int n_):i({0}),n({n_}){}range(int i_,int n_):i({i_}),n({n_}){}I& begin(){return i;}I& end(){return n;}}; template<typename T, typename U> ostream& operator<<(ostream& os, const pair<T, U>& p){ return os << "{" << p.first << ", " << p.second << "}"; } template<typename T> ostream& operator<<(ostream& os, const vector<T>& obj) { os << "{"; for (const auto& e : obj) os << e << ", "; return os << "}"; } template<typename T> ostream& operator<<(ostream& os, const set<T>& obj) { os << "set{"; for (const auto& e : obj) os << e << ", "; return os << "}"; } template<typename T, typename U> ostream& operator<<(ostream& os, const map<T, U>& obj) { os << "map{"; for (const auto& e : obj) os << e << ", "; return os << "}"; } #ifdef ONLINE_JUDGE #define dump(expr) ; #else #define dump(expr) { cerr << "\033[33m#L" << __LINE__ << ": " << expr << "\033[39m" << endl; } #endif using EdgeCost = ll; struct E { int fr, to, eid; EdgeCost cost; E(int fr_, int to_, int eid_, EdgeCost cost_) : fr(fr_), to(to_), eid(eid_), cost(cost_) {} friend ostream &operator<<(ostream &os, const E &e) { os << "(" << e.fr << " -> " << e.to << ")"; return os; } }; using V = vector<E>; struct G { int n, e_count; vector<V> adj; vector<V> rev; G(int n_ = 0) : n(n_), e_count(0), adj(n), rev(n) {} void add_directed_edge(int fr, int to, EdgeCost cost = (EdgeCost)1) { int eid = e_count; adj[fr].push_back(E(fr, to, eid, cost)); rev[to].push_back(E(fr, to, eid, cost)); e_count++; } void add_undirected_edge(int fr, int to, EdgeCost cost = (EdgeCost)1) { int eid = e_count; adj[fr].push_back(E(fr, to, eid, cost)); rev[to].push_back(E(fr, to, eid, cost)); adj[to].push_back(E(to, fr, eid, cost)); rev[fr].push_back(E(to, fr, eid, cost)); e_count++; } }; struct StronglyConnectedComponents { vector<char> visited; vector<int> t_order; vector<int> comp; int n_comps; StronglyConnectedComponents() {} // normal topological sort void dfs1(G &g, int id, int &k) { visited[id] = true; for (auto it : g.adj[id]) if (!visited[it.to]) dfs1(g, it.to, k); t_order[--k] = id; } // dfs of reverse order void dfs2(G &g, int id, int &k) { visited[id] = true; for (auto it : g.rev[id]) if (!visited[it.fr]) dfs2(g, it.fr, k); comp[id] = k; // foreach vertex "id", return the topological order } void exec(G &g) { int k = g.n; // 1st dfs visited.assign(g.n, 0); t_order.assign(g.n, 0); comp.assign(g.n, 0); for (int j : range(g.n)) if (!visited[j]) dfs1(g, j, k); // 2nd dfs visited.assign(g.n, 0); for (int i : range(g.n)) { int j = t_order[i]; if (!visited[j]) dfs2(g, j, k), k++; } n_comps = k; } }; namespace solver { int n; G g; void read() { cin >> n; g = G(n + 1); for (int i : range(n)) { int k; cin >> k; for ([[maybe_unused]]int j : range(k)) { int a; cin >> a; g.add_directed_edge(i + 1, a); } } } G gsh; vector<int> sz; vector<int> memo; int dfs(int idx) { if (memo[idx] >= 0) return memo[idx]; int res = 0; for (auto e : gsh.adj[idx]) { res = max(res, dfs(e.to)); } res += sz[idx]; return memo[idx] = res; } ll run() { dump(g.adj); StronglyConnectedComponents scc; scc.exec(g); gsh = G(scc.n_comps); sz.assign(scc.n_comps, 0); for (int i : range(n + 1)) { for (auto e : g.adj[i]) { int fr = scc.comp[e.fr]; int to = scc.comp[e.to]; assert(fr <= to); dump(fr << " " << to) if (fr != to) gsh.add_directed_edge(fr, to); } sz[scc.comp[i]]++; } dump(sz) dump(gsh.adj) memo.assign(scc.n_comps, -1); if (dfs(scc.comp[1]) == n) return 1; return 0; } } // namespace int main(int argc, char** argv) { cerr << fixed << setprecision(12); cout << fixed << setprecision(12); int testcase = 1; if (argc > 1) testcase = atoi(argv[1]); while (testcase--) { solver::read(); } cout << (solver::run() ? "Yes" : "No") << endl; }