結果
問題 | No.408 五輪ピック |
ユーザー | Grenache |
提出日時 | 2016-08-06 02:07:24 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 1,014 ms / 5,000 ms |
コード長 | 2,509 bytes |
コンパイル時間 | 4,314 ms |
コンパイル使用メモリ | 80,036 KB |
実行使用メモリ | 73,552 KB |
最終ジャッジ日時 | 2024-11-07 02:10:59 |
合計ジャッジ時間 | 19,719 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 | 63 ms
50,588 KB |
testcase_01 | AC | 62 ms
50,692 KB |
testcase_02 | AC | 63 ms
50,396 KB |
testcase_03 | AC | 63 ms
50,636 KB |
testcase_04 | AC | 62 ms
50,700 KB |
testcase_05 | AC | 540 ms
67,908 KB |
testcase_06 | AC | 401 ms
63,820 KB |
testcase_07 | AC | 510 ms
63,212 KB |
testcase_08 | AC | 444 ms
64,148 KB |
testcase_09 | AC | 459 ms
63,808 KB |
testcase_10 | AC | 419 ms
63,052 KB |
testcase_11 | AC | 410 ms
64,068 KB |
testcase_12 | AC | 533 ms
66,576 KB |
testcase_13 | AC | 523 ms
68,356 KB |
testcase_14 | AC | 284 ms
59,696 KB |
testcase_15 | AC | 588 ms
69,272 KB |
testcase_16 | AC | 557 ms
68,848 KB |
testcase_17 | AC | 555 ms
68,744 KB |
testcase_18 | AC | 604 ms
70,032 KB |
testcase_19 | AC | 581 ms
66,516 KB |
testcase_20 | AC | 324 ms
61,076 KB |
testcase_21 | AC | 264 ms
58,988 KB |
testcase_22 | AC | 406 ms
63,748 KB |
testcase_23 | AC | 658 ms
72,372 KB |
testcase_24 | AC | 545 ms
70,708 KB |
testcase_25 | AC | 706 ms
73,152 KB |
testcase_26 | AC | 643 ms
69,876 KB |
testcase_27 | AC | 1,014 ms
73,552 KB |
testcase_28 | AC | 824 ms
72,660 KB |
testcase_29 | AC | 940 ms
72,832 KB |
testcase_30 | AC | 66 ms
51,016 KB |
testcase_31 | AC | 65 ms
50,700 KB |
ソースコード
import java.io.*; import java.util.*; public class Main_yukicoder408_1 { 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(); @SuppressWarnings("unchecked") Set<Integer> edges[] = new Set[n]; for (int i = 0; i < n; i++) { edges[i] = new HashSet<>(); } int[] a = new int[m]; int[] b = new int[m]; for (int i = 0; i < m; i++) { a[i] = sc.nextInt() - 1; b[i] = sc.nextInt() - 1; edges[a[i]].add(b[i]); edges[b[i]].add(a[i]); } Set<Integer>[] edges2 = new Set[n]; for (int i = 1; i < n; i++) { edges2[i] = new HashSet<>(); } for (int e : edges[0]) { for (int e2 : edges[e]) { if (e2 != 0) { edges2[e2].add(e); } } } for (int i = 0; i < m; i++) { if (a[i] == 0 || b[i] == 0) { continue; } for (int e : edges2[a[i]]) { if (e == 0) { continue; } for (int e2 : edges2[b[i]]) { if (e2 == 0) { continue; } if (e != e2 && e != b[i] && e2 != a[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)); } 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); } } }