結果
問題 | No.408 五輪ピック |
ユーザー | Grenache |
提出日時 | 2016-08-06 09:40:34 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 912 ms / 5,000 ms |
コード長 | 3,076 bytes |
コンパイル時間 | 3,518 ms |
コンパイル使用メモリ | 79,532 KB |
実行使用メモリ | 56,488 KB |
最終ジャッジ日時 | 2024-04-24 18:07:58 |
合計ジャッジ時間 | 15,998 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 | 52 ms
37,436 KB |
testcase_01 | AC | 52 ms
37,552 KB |
testcase_02 | AC | 53 ms
37,516 KB |
testcase_03 | AC | 54 ms
37,184 KB |
testcase_04 | AC | 54 ms
37,424 KB |
testcase_05 | AC | 482 ms
54,600 KB |
testcase_06 | AC | 352 ms
50,732 KB |
testcase_07 | AC | 429 ms
50,964 KB |
testcase_08 | AC | 414 ms
51,496 KB |
testcase_09 | AC | 407 ms
49,312 KB |
testcase_10 | AC | 363 ms
50,516 KB |
testcase_11 | AC | 349 ms
50,404 KB |
testcase_12 | AC | 460 ms
53,092 KB |
testcase_13 | AC | 439 ms
52,908 KB |
testcase_14 | AC | 272 ms
48,568 KB |
testcase_15 | AC | 454 ms
54,472 KB |
testcase_16 | AC | 453 ms
53,996 KB |
testcase_17 | AC | 482 ms
53,340 KB |
testcase_18 | AC | 467 ms
51,600 KB |
testcase_19 | AC | 464 ms
54,188 KB |
testcase_20 | AC | 288 ms
49,488 KB |
testcase_21 | AC | 247 ms
48,216 KB |
testcase_22 | AC | 353 ms
49,920 KB |
testcase_23 | AC | 485 ms
55,440 KB |
testcase_24 | AC | 430 ms
54,664 KB |
testcase_25 | AC | 525 ms
56,452 KB |
testcase_26 | AC | 486 ms
54,212 KB |
testcase_27 | AC | 912 ms
56,488 KB |
testcase_28 | AC | 369 ms
50,796 KB |
testcase_29 | AC | 379 ms
52,080 KB |
testcase_30 | AC | 52 ms
37,224 KB |
testcase_31 | AC | 55 ms
37,016 KB |
ソースコード
import java.io.*; import java.util.*; public class Main_yukicoder408_2 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); Printer pr = new Printer(System.out); int n = sc.nextInt(); int m = sc.nextInt(); List<List<Integer>> edges = new ArrayList<>(n); for (int i = 0; i < n; i++) { edges.add(null); } // int[] a = new int[m]; // int[] b = new int[m]; int[] tmpa = new int[m]; int[] tmpb = new int[m]; for (int i = 0; i < m; i++) { // a[i] = sc.nextInt() - 1; // b[i] = sc.nextInt() - 1; int a = sc.nextInt() - 1; int b = sc.nextInt() - 1; // edges[a[i]].add(b[i]); // edges[b[i]].add(a[i]); if (edges.get(a) == null) { edges.set(a, new ArrayList<>()); } if (edges.get(b) == null) { edges.set(b, new ArrayList<>()); } edges.get(a).add(b); edges.get(b).add(a); } List<List<Integer>> edges2 = new ArrayList<>(n); for (int i = 0; i < n; i++) { edges2.add(null); } for (int e : edges.get(0)) { for (int e2 : edges.get(e)) { if (e2 != 0) { if (edges2.get(e2) == null) { edges2.set(e2, new ArrayList<>(edges.get(e2).size())); } edges2.get(e2).add(e); } } } for (int i = 1; i < n; i++) { for (int j : edges.get(i)) { if (j == 0 || edges2.get(i) == null) { continue; } for (int e : edges2.get(i)) { if (e == 0 || edges2.get(j) == null) { continue; } for (int e2 : edges2.get(j)) { if (e2 == 0) { continue; } if (e != e2 && e != j && e2 != i) { pr.println("YES"); pr.close(); sc.close(); return; } } } } } pr.println("NO"); pr.close(); sc.close(); } @SuppressWarnings("unused") private static class Scanner { BufferedReader br; Iterator<String> it; Scanner (InputStream in) { br = new BufferedReader(new InputStreamReader(in), 128); } String next() throws RuntimeException { try { if (it == null || !it.hasNext()) { // it = Arrays.asList(br.readLine().split(" ")).iterator(); it = Arrays.asList(br.readLine().split("\\p{javaWhitespace}+")).iterator(); } return it.next(); } catch (IOException e) { throw new IllegalStateException(); } } int nextInt() throws RuntimeException { return Integer.parseInt(next()); } long nextLong() throws RuntimeException { return Long.parseLong(next()); } float nextFloat() throws RuntimeException { return Float.parseFloat(next()); } double nextDouble() throws RuntimeException { return Double.parseDouble(next()); } void close() { try { br.close(); } catch (IOException e) { // throw new IllegalStateException(); } } } private static class Printer extends PrintWriter { Printer(PrintStream out) { super(out); } } }