結果
問題 | No.2277 Honest or Dishonest ? |
ユーザー | magsta |
提出日時 | 2023-04-20 19:20:00 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 298 ms / 2,000 ms |
コード長 | 5,396 bytes |
コンパイル時間 | 1,337 ms |
コンパイル使用メモリ | 82,520 KB |
実行使用メモリ | 25,600 KB |
最終ジャッジ日時 | 2024-11-08 06:21:15 |
合計ジャッジ時間 | 10,655 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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
19,584 KB |
testcase_04 | AC | 230 ms
22,144 KB |
testcase_05 | AC | 57 ms
13,824 KB |
testcase_06 | AC | 186 ms
15,488 KB |
testcase_07 | AC | 143 ms
14,848 KB |
testcase_08 | AC | 41 ms
14,464 KB |
testcase_09 | AC | 116 ms
16,128 KB |
testcase_10 | AC | 103 ms
10,880 KB |
testcase_11 | AC | 39 ms
7,296 KB |
testcase_12 | AC | 73 ms
7,552 KB |
testcase_13 | AC | 198 ms
17,664 KB |
testcase_14 | AC | 90 ms
7,936 KB |
testcase_15 | AC | 47 ms
12,032 KB |
testcase_16 | AC | 140 ms
14,592 KB |
testcase_17 | AC | 58 ms
8,576 KB |
testcase_18 | AC | 197 ms
21,120 KB |
testcase_19 | AC | 207 ms
21,376 KB |
testcase_20 | AC | 153 ms
17,408 KB |
testcase_21 | AC | 125 ms
11,520 KB |
testcase_22 | AC | 127 ms
15,360 KB |
testcase_23 | AC | 182 ms
13,312 KB |
testcase_24 | AC | 106 ms
14,336 KB |
testcase_25 | AC | 135 ms
18,048 KB |
testcase_26 | AC | 25 ms
12,800 KB |
testcase_27 | AC | 78 ms
9,472 KB |
testcase_28 | AC | 48 ms
11,776 KB |
testcase_29 | AC | 81 ms
14,976 KB |
testcase_30 | AC | 72 ms
10,496 KB |
testcase_31 | AC | 151 ms
15,872 KB |
testcase_32 | AC | 73 ms
14,080 KB |
testcase_33 | AC | 202 ms
20,864 KB |
testcase_34 | AC | 224 ms
20,864 KB |
testcase_35 | AC | 15 ms
8,960 KB |
testcase_36 | AC | 126 ms
14,208 KB |
testcase_37 | AC | 200 ms
16,000 KB |
testcase_38 | AC | 35 ms
5,888 KB |
testcase_39 | AC | 52 ms
7,552 KB |
testcase_40 | AC | 16 ms
7,936 KB |
testcase_41 | AC | 247 ms
21,504 KB |
testcase_42 | AC | 159 ms
16,640 KB |
testcase_43 | AC | 274 ms
25,472 KB |
testcase_44 | AC | 286 ms
25,472 KB |
testcase_45 | AC | 269 ms
25,472 KB |
testcase_46 | AC | 264 ms
25,600 KB |
testcase_47 | AC | 288 ms
25,600 KB |
testcase_48 | AC | 269 ms
25,600 KB |
testcase_49 | AC | 262 ms
25,472 KB |
testcase_50 | AC | 258 ms
25,472 KB |
testcase_51 | AC | 262 ms
25,600 KB |
testcase_52 | AC | 298 ms
25,472 KB |
ソースコード
#include <iostream> #include <vector> #include <set> 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() { // 頂点数と辺数 int N, Q; cin >> N >> Q; 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, b, c; cin >> a >> b >> c; 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)); } // 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; }