結果
問題 | No.2346 Replace!! |
ユーザー | t98slider |
提出日時 | 2023-06-09 23:34:00 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,361 bytes |
コンパイル時間 | 1,911 ms |
コンパイル使用メモリ | 190,500 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-10 14:39:02 |
合計ジャッジ時間 | 3,781 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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
5,248 KB |
testcase_01 | AC | 5 ms
5,376 KB |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | AC | 2 ms
5,376 KB |
testcase_29 | AC | 2 ms
5,376 KB |
testcase_30 | AC | 2 ms
5,376 KB |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | AC | 4 ms
5,376 KB |
testcase_43 | WA | - |
testcase_44 | WA | - |
testcase_45 | AC | 3 ms
5,376 KB |
testcase_46 | AC | 3 ms
5,376 KB |
testcase_47 | AC | 3 ms
5,376 KB |
testcase_48 | AC | 3 ms
5,376 KB |
testcase_49 | AC | 3 ms
5,376 KB |
testcase_50 | AC | 4 ms
5,376 KB |
testcase_51 | AC | 3 ms
5,376 KB |
testcase_52 | AC | 3 ms
5,376 KB |
testcase_53 | AC | 5 ms
5,376 KB |
testcase_54 | WA | - |
testcase_55 | WA | - |
testcase_56 | WA | - |
testcase_57 | AC | 17 ms
5,376 KB |
testcase_58 | WA | - |
testcase_59 | WA | - |
testcase_60 | WA | - |
testcase_61 | AC | 17 ms
5,376 KB |
testcase_62 | WA | - |
testcase_63 | WA | - |
testcase_64 | AC | 17 ms
5,376 KB |
testcase_65 | WA | - |
testcase_66 | AC | 3 ms
5,376 KB |
testcase_67 | AC | 18 ms
5,376 KB |
testcase_68 | AC | 17 ms
5,376 KB |
testcase_69 | AC | 3 ms
5,376 KB |
testcase_70 | AC | 10 ms
5,376 KB |
testcase_71 | AC | 7 ms
5,376 KB |
testcase_72 | AC | 4 ms
5,376 KB |
testcase_73 | AC | 5 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; namespace internal_scc{ template <class E> struct csr { std::vector<int> start; std::vector<E> elist; csr(int n, const std::vector<std::pair<int, E>>& edges) : start(n + 1), elist(edges.size()) { for (auto e : edges) { start[e.first + 1]++; } for (int i = 1; i <= n; i++) { start[i] += start[i - 1]; } auto counter = start; for (auto e : edges) { elist[counter[e.first]++] = e.second; } } }; struct scc_graph { public: scc_graph(int n) : _n(n) {} int num_vertices() { return _n; } void add_edge(int from, int to) { edges.push_back({from, {to}}); } std::pair<int, std::vector<int>> scc_ids() { auto g = csr<edge>(_n, edges); int now_ord = 0, group_num = 0; std::vector<int> visited, low(_n), ord(_n, -1), ids(_n); visited.reserve(_n); auto dfs = [&](auto self, int v) -> void { low[v] = ord[v] = now_ord++; visited.push_back(v); for (int i = g.start[v]; i < g.start[v + 1]; i++) { auto to = g.elist[i].to; if (ord[to] == -1) { self(self, to); low[v] = std::min(low[v], low[to]); } else { low[v] = std::min(low[v], ord[to]); } } if (low[v] == ord[v]) { while (true) { int u = visited.back(); visited.pop_back(); ord[u] = _n; ids[u] = group_num; if (u == v) break; } group_num++; } }; for (int i = 0; i < _n; i++) { if (ord[i] == -1) dfs(dfs, i); } for (auto& x : ids) { x = group_num - 1 - x; } return {group_num, ids}; } std::vector<std::vector<int>> scc() { auto ids = scc_ids(); int group_num = ids.first; std::vector<int> counts(group_num); for (auto x : ids.second) counts[x]++; std::vector<std::vector<int>> groups(ids.first); for (int i = 0; i < group_num; i++) { groups[i].reserve(counts[i]); } for (int i = 0; i < _n; i++) { groups[ids.second[i]].push_back(i); } return groups; } private: int _n; struct edge { int to; }; std::vector<std::pair<int, edge>> edges; }; } struct scc_graph { public: scc_graph() : internal(0) {} scc_graph(int n) : internal(n) {} void add_edge(int from, int to) { int n = internal.num_vertices(); assert(0 <= from && from < n); assert(0 <= to && to < n); internal.add_edge(from, to); } std::vector<std::vector<int>> scc() { return internal.scc(); } private: internal_scc::scc_graph internal; }; int main(){ ios::sync_with_stdio(false); cin.tie(0); int T; cin >> T; while(T--){ int n; cin >> n; vector<int> a(n), b(n); for(auto &&v : a) cin >> v, v--; for(auto &&v : b) cin >> v, v--; vector<vector<int>> g(n); vector<int> par(n, -1), depth(n); scc_graph g2(n); for(int i = 0; i < n; i++){ if(a[i] != b[i]){ g2.add_edge(i, a[i]); g[a[i]].emplace_back(i); par[i] = a[i]; } } if(g2.scc().size() != n){ cout << "No" << '\n'; continue; } priority_queue<pair<int,int>> pq; vector<int> tmp; bool flag = true; function<void(int,int)> dfs = [&](int v, int p){ depth[v] = tmp.size(); if(p != -1){ for(int j = tmp.size() - 1; j >= 0; j--){ if(tmp[j] == b[j]){ pq.emplace(j, v); break; } if(j == 0){ flag = false; break; } } } tmp.emplace_back(a[v]); for(auto &&u : g[v]){ if(u == p) continue; dfs(u, v); } tmp.pop_back(); }; for(int i = 0; i < n; i++){ if(par[i] == -1) dfs(i, -1); } if(!flag){ cout << "No" << '\n'; continue; } vector<int> rute; while(!pq.empty()){ int d, v, fr; tie(d, v) = pq.top(); pq.pop(); fr = v; while(v != -1){ if(a[v] == b[fr]) break; rute.emplace_back(v); v = par[v]; } if(v == -1){ flag = false; break; } if(depth[v] == d){ while(!rute.empty()){ a[rute.back()] = b[fr]; rute.pop_back(); } }else{ pq.emplace(depth[v], fr); } } if(!flag){ cout << "No" << '\n'; continue; } cout << (a == b ? "Yes" : "No") << '\n'; } }