結果
問題 | No.2277 Honest or Dishonest ? |
ユーザー | magsta |
提出日時 | 2023-04-20 09:31:48 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 231 ms / 2,000 ms |
コード長 | 5,194 bytes |
コンパイル時間 | 1,070 ms |
コンパイル使用メモリ | 73,460 KB |
実行使用メモリ | 20,736 KB |
最終ジャッジ日時 | 2024-11-08 06:20:13 |
合計ジャッジ時間 | 9,380 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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 | 168 ms
15,360 KB |
testcase_04 | AC | 182 ms
18,048 KB |
testcase_05 | AC | 51 ms
12,672 KB |
testcase_06 | AC | 129 ms
11,520 KB |
testcase_07 | AC | 112 ms
11,904 KB |
testcase_08 | AC | 42 ms
13,440 KB |
testcase_09 | AC | 110 ms
13,696 KB |
testcase_10 | AC | 68 ms
8,576 KB |
testcase_11 | AC | 33 ms
6,272 KB |
testcase_12 | AC | 44 ms
5,248 KB |
testcase_13 | AC | 147 ms
13,312 KB |
testcase_14 | AC | 50 ms
5,248 KB |
testcase_15 | AC | 42 ms
11,008 KB |
testcase_16 | AC | 103 ms
11,520 KB |
testcase_17 | AC | 43 ms
7,168 KB |
testcase_18 | AC | 152 ms
17,408 KB |
testcase_19 | AC | 168 ms
17,536 KB |
testcase_20 | AC | 138 ms
14,336 KB |
testcase_21 | AC | 94 ms
8,320 KB |
testcase_22 | AC | 101 ms
12,672 KB |
testcase_23 | AC | 115 ms
8,832 KB |
testcase_24 | AC | 89 ms
12,160 KB |
testcase_25 | AC | 118 ms
15,488 KB |
testcase_26 | AC | 25 ms
12,288 KB |
testcase_27 | AC | 57 ms
7,040 KB |
testcase_28 | AC | 44 ms
10,624 KB |
testcase_29 | AC | 77 ms
13,056 KB |
testcase_30 | AC | 61 ms
8,448 KB |
testcase_31 | AC | 123 ms
12,800 KB |
testcase_32 | AC | 66 ms
12,416 KB |
testcase_33 | AC | 153 ms
17,152 KB |
testcase_34 | AC | 172 ms
16,256 KB |
testcase_35 | AC | 14 ms
8,704 KB |
testcase_36 | AC | 99 ms
11,520 KB |
testcase_37 | AC | 134 ms
11,520 KB |
testcase_38 | AC | 23 ms
5,248 KB |
testcase_39 | AC | 38 ms
5,888 KB |
testcase_40 | AC | 15 ms
7,424 KB |
testcase_41 | AC | 176 ms
17,024 KB |
testcase_42 | AC | 145 ms
13,440 KB |
testcase_43 | AC | 227 ms
20,736 KB |
testcase_44 | AC | 203 ms
20,736 KB |
testcase_45 | AC | 196 ms
20,736 KB |
testcase_46 | AC | 229 ms
20,736 KB |
testcase_47 | AC | 222 ms
20,736 KB |
testcase_48 | AC | 212 ms
20,736 KB |
testcase_49 | AC | 207 ms
20,736 KB |
testcase_50 | AC | 198 ms
20,736 KB |
testcase_51 | AC | 216 ms
20,736 KB |
testcase_52 | AC | 231 ms
20,736 KB |
ソースコード
#include <iostream> #include <vector> 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; // 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); } // 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; }