結果
問題 | No.2277 Honest or Dishonest ? |
ユーザー | magsta |
提出日時 | 2023-04-20 19:32:48 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 278 ms / 2,000 ms |
コード長 | 5,741 bytes |
コンパイル時間 | 7,493 ms |
コンパイル使用メモリ | 231,916 KB |
実行使用メモリ | 31,188 KB |
最終ジャッジ日時 | 2024-11-08 06:21:45 |
合計ジャッジ時間 | 16,784 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 222 ms
24,708 KB |
testcase_04 | AC | 222 ms
27,204 KB |
testcase_05 | AC | 57 ms
15,340 KB |
testcase_06 | AC | 178 ms
21,208 KB |
testcase_07 | AC | 136 ms
18,076 KB |
testcase_08 | AC | 42 ms
15,328 KB |
testcase_09 | AC | 119 ms
19,040 KB |
testcase_10 | AC | 92 ms
13,688 KB |
testcase_11 | AC | 40 ms
8,788 KB |
testcase_12 | AC | 75 ms
10,740 KB |
testcase_13 | AC | 204 ms
22,420 KB |
testcase_14 | AC | 97 ms
10,684 KB |
testcase_15 | AC | 44 ms
13,532 KB |
testcase_16 | AC | 129 ms
17,836 KB |
testcase_17 | AC | 56 ms
10,296 KB |
testcase_18 | AC | 189 ms
25,424 KB |
testcase_19 | AC | 205 ms
27,136 KB |
testcase_20 | AC | 155 ms
20,960 KB |
testcase_21 | AC | 127 ms
15,212 KB |
testcase_22 | AC | 123 ms
18,352 KB |
testcase_23 | AC | 185 ms
19,224 KB |
testcase_24 | AC | 111 ms
17,192 KB |
testcase_25 | AC | 139 ms
21,232 KB |
testcase_26 | AC | 25 ms
13,568 KB |
testcase_27 | AC | 82 ms
12,168 KB |
testcase_28 | AC | 49 ms
13,040 KB |
testcase_29 | AC | 83 ms
17,164 KB |
testcase_30 | AC | 78 ms
12,672 KB |
testcase_31 | AC | 155 ms
19,460 KB |
testcase_32 | AC | 72 ms
15,964 KB |
testcase_33 | AC | 196 ms
26,432 KB |
testcase_34 | AC | 233 ms
25,972 KB |
testcase_35 | AC | 15 ms
9,484 KB |
testcase_36 | AC | 123 ms
17,388 KB |
testcase_37 | AC | 200 ms
21,200 KB |
testcase_38 | AC | 36 ms
7,388 KB |
testcase_39 | AC | 52 ms
9,188 KB |
testcase_40 | AC | 15 ms
8,288 KB |
testcase_41 | AC | 240 ms
27,112 KB |
testcase_42 | AC | 156 ms
20,404 KB |
testcase_43 | AC | 267 ms
31,072 KB |
testcase_44 | AC | 265 ms
31,060 KB |
testcase_45 | AC | 267 ms
31,060 KB |
testcase_46 | AC | 270 ms
31,068 KB |
testcase_47 | AC | 268 ms
30,940 KB |
testcase_48 | AC | 268 ms
31,068 KB |
testcase_49 | AC | 274 ms
31,068 KB |
testcase_50 | AC | 274 ms
31,072 KB |
testcase_51 | AC | 278 ms
31,064 KB |
testcase_52 | AC | 274 ms
31,188 KB |
ソースコード
#include <iostream> #include <vector> #include <set> #include "testlib.h" using namespace std; using Graph = vector<vector<int>>; // 深さ優先探索 int seen[100010], seen2[100010]; bool dfs(const Graph& G, const Graph& G_, const Graph& G2, const Graph& G2_, int v, bool HonLia) { bool flag = false; //矛盾が生じたか if (HonLia == true) seen[v] = 2; else seen[v] = 1; for (auto next_v : G[v]) { if (seen[next_v] >= 1) { if (HonLia == true && seen[next_v] == 1) flag = true; if (HonLia == false && seen[next_v] == 2) flag = true; continue; } if (HonLia == true) { if (dfs(G, G_, G2, G2_, next_v, true) == true) flag = true; } // 再帰的に探索 else { if (dfs(G, G_, G2, G2_, next_v, false) == true) flag = true; } // 再帰的に探索 } for (auto next_v : G_[v]) { if (seen[next_v] >= 1) { if (HonLia == true && seen[next_v] == 2) flag = true; if (HonLia == false && seen[next_v] == 1) flag = true; continue; } if (HonLia == true) { if (dfs(G, G_, G2, G2_, next_v, false) == true) flag = true; } // 再帰的に探索 else { if (dfs(G, G_, G2, G2_, next_v, true) == true) flag = true; } // 再帰的に探索 } for (auto next_v : G2[v]) { if (seen[next_v] >= 1) { if (HonLia == true && seen[next_v] == 1) flag = true; if (HonLia == false && seen[next_v] == 2) flag = true; continue; } if (HonLia == true) { if (dfs(G, G_, G2, G2_, next_v, true) == true) flag = true; } // 再帰的に探索 else { if (dfs(G, G_, G2, G2_, next_v, false) == true) flag = true; } // 再帰的に探索 } for (auto next_v : G2_[v]) { if (seen[next_v] >= 1) { if (HonLia == true && seen[next_v] == 2) flag = true; if (HonLia == false && seen[next_v] == 1) flag = true; continue; } if (HonLia == true) { if (dfs(G, G_, G2, G2_, next_v, false) == true) flag = true; } // 再帰的に探索 else { if (dfs(G, G_, G2, G2_, next_v, true) == true) flag = true; } // 再帰的に探索 } return flag; } bool dfs2(const Graph& G, const Graph& G_, const Graph& G2, const Graph& G2_, int v, bool HonLia) { bool flag = false; //矛盾が生じたか if (HonLia == true) seen2[v] = 2; else seen2[v] = 1; for (auto next_v : G[v]) { if (seen2[next_v] >= 1) { if (HonLia == true && seen2[next_v] == 1) flag = true; if (HonLia == false && seen2[next_v] == 2) flag = true; continue; } if (HonLia == true) { if (dfs2(G, G_, G2, G2_, next_v, true) == true) flag = true; } // 再帰的に探索 else { if (dfs2(G, G_, G2, G2_, next_v, false) == true) flag = true; } // 再帰的に探索 } for (auto next_v : G_[v]) { if (seen2[next_v] >= 1) { if (HonLia == true && seen2[next_v] == 2) flag = true; if (HonLia == false && seen2[next_v] == 1) flag = true; continue; } if (HonLia == true) { if (dfs2(G, G_, G2, G2_, next_v, false) == true) flag = true; } // 再帰的に探索 else { if (dfs2(G, G_, G2, G2_, next_v, true) == true) flag = true; } // 再帰的に探索 } for (auto next_v : G2[v]) { if (seen2[next_v] >= 1) { if (HonLia == true && seen2[next_v] == 1) flag = true; if (HonLia == false && seen2[next_v] == 2) flag = true; continue; } if (HonLia == true) { if (dfs2(G, G_, G2, G2_, next_v, true) == true) flag = true; } // 再帰的に探索 else { if (dfs2(G, G_, G2, G2_, next_v, false) == true) flag = true; } // 再帰的に探索 } for (auto next_v : G2_[v]) { if (seen2[next_v] >= 1) { if (HonLia == true && seen2[next_v] == 2) flag = true; if (HonLia == false && seen2[next_v] == 1) flag = true; continue; } if (HonLia == true) { if (dfs2(G, G_, G2, G2_, next_v, false) == true) flag = true; } // 再帰的に探索 else { if (dfs2(G, G_, G2, G2_, next_v, true) == true) flag = true; } // 再帰的に探索 } return flag; } int main() { registerValidation(); // 頂点数と辺数 int N = inf.readInt(2, 100000, "N"); inf.readSpace(); int Q = inf.readInt(1, 100000, "Q"); inf.readEoln(); set<pair<int, int>> Set; // グラフ入力受取 Graph G(N), G_(N), G2(N), G2_(N); for (int i = 0; i < Q; ++i) { int a = inf.readInt(1, N, "a"); inf.readSpace(); int b = inf.readInt(1, N, "b"); inf.readSpace(); int c = inf.readInt(0, 1, "c"); if (a == b) cout << -1 << endl; if (c == 0) G[a - 1].push_back(b - 1); if (c == 1) G_[a - 1].push_back(b - 1); if (c == 0) G2[b - 1].push_back(a - 1); if (c == 1) G2_[b - 1].push_back(a - 1); if (*(Set.lower_bound(make_pair(a, b))) == make_pair(a, b)) cout << -1 << endl; Set.insert(make_pair(a, b)); inf.readEoln(); } inf.readEof(); // 全頂点が訪問済みになるまで探索 long long ans = 1; for (int i = 0; i < N; i++) seen[i] = seen2[i] = 0; for (int v = 0; v < N; ++v) { if (seen[v] >= 1) continue; // v が探索済みだったらスルー long long count = 0; if (dfs(G, G_, G2, G2_, v, true) == false) count++; // v が未探索なら v を始点とした DFS を行う if (dfs2(G, G_, G2, G2_, v, false) == false) count++; // v が未探索なら v を始点とした DFS を行う ans = (ans * count) % 998244353; } cout << ans << endl; }