結果
問題 | No.408 五輪ピック |
ユーザー | 37zigen |
提出日時 | 2017-09-09 03:21:34 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 1,243 ms / 5,000 ms |
コード長 | 3,882 bytes |
コンパイル時間 | 2,650 ms |
コンパイル使用メモリ | 82,788 KB |
実行使用メモリ | 51,828 KB |
最終ジャッジ日時 | 2024-11-07 12:47:30 |
合計ジャッジ時間 | 19,005 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | 128 ms
41,096 KB |
testcase_01 | AC | 126 ms
41,344 KB |
testcase_02 | AC | 114 ms
40,228 KB |
testcase_03 | AC | 128 ms
41,332 KB |
testcase_04 | AC | 128 ms
41,332 KB |
testcase_05 | AC | 1,086 ms
48,472 KB |
testcase_06 | AC | 315 ms
48,860 KB |
testcase_07 | AC | 363 ms
49,900 KB |
testcase_08 | AC | 437 ms
48,628 KB |
testcase_09 | AC | 404 ms
50,908 KB |
testcase_10 | AC | 330 ms
50,336 KB |
testcase_11 | AC | 287 ms
50,104 KB |
testcase_12 | AC | 330 ms
49,432 KB |
testcase_13 | AC | 1,017 ms
48,512 KB |
testcase_14 | AC | 312 ms
48,972 KB |
testcase_15 | AC | 1,180 ms
48,612 KB |
testcase_16 | AC | 891 ms
48,872 KB |
testcase_17 | AC | 570 ms
50,192 KB |
testcase_18 | AC | 391 ms
49,108 KB |
testcase_19 | AC | 332 ms
49,412 KB |
testcase_20 | AC | 328 ms
49,488 KB |
testcase_21 | AC | 281 ms
48,460 KB |
testcase_22 | AC | 402 ms
50,696 KB |
testcase_23 | AC | 1,243 ms
51,828 KB |
testcase_24 | AC | 565 ms
50,796 KB |
testcase_25 | AC | 771 ms
48,392 KB |
testcase_26 | AC | 383 ms
50,260 KB |
testcase_27 | AC | 728 ms
48,572 KB |
testcase_28 | AC | 525 ms
50,536 KB |
testcase_29 | AC | 548 ms
50,488 KB |
testcase_30 | AC | 126 ms
41,344 KB |
testcase_31 | AC | 128 ms
41,128 KB |
ソースコード
package No400番台; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Arrays; import java.util.Random; import java.util.Scanner; public class Main { static InputStream is; static PrintWriter out; static String INPUT = ""; public static void main(String[] args) throws Exception { is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); out = new PrintWriter(System.out); solver(); out.flush(); } static long nl() { try { long num = 0; boolean minus = false; while((num = is.read()) != -1 && !((num >= '0' && num <= '9') || num == '-')); if(num == '-'){ num = 0; minus = true; }else{ num -= '0'; } while(true){ int b = is.read(); if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } } } catch (IOException e) { } return -1; } static char nc() { try { int b = skip(); if(b == -1)return 0; return (char)b; } catch (IOException e) { } return 0; } static double nd() { try { return Double.parseDouble(ns()); }catch(Exception e) { } return 0; } static String ns() { try{ int b = skip(); StringBuilder sb = new StringBuilder(); if(b == -1)return ""; sb.append((char)b); while(true){ b = is.read(); if(b == -1)return sb.toString(); if(b <= ' ')return sb.toString(); sb.append((char)b); } } catch (IOException e) { } return ""; } public static char[] ns(int n) { char[] buf = new char[n]; try{ int b = skip(), p = 0; if(b == -1)return null; buf[p++] = (char)b; while(p < n){ b = is.read(); if(b == -1 || b <= ' ')break; buf[p++] = (char)b; } return Arrays.copyOf(buf, p); } catch (IOException e) { } return null; } public static byte[] nse(int n) { byte[] buf = new byte[n]; try{ int b = skip(); if(b == -1)return null; is.read(buf); return buf; } catch (IOException e) { } return null; } static int skip() throws IOException { int b; while((b = is.read()) != -1 && !(b >= 33 && b <= 126)); return b; } static boolean eof() { try { is.mark(1000); int b = skip(); is.reset(); return b == -1; } catch (IOException e) { return true; } } static int ni() { try { int num = 0; boolean minus = false; while((num = is.read()) != -1 && !((num >= '0' && num <= '9') || num == '-')); if(num == '-'){ num = 0; minus = true; }else{ num -= '0'; } while(true){ int b = is.read(); if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } } } catch (IOException e) { } return -1; } static void solver() { Scanner sc = new Scanner(System.in); int n = ni(); int m = ni(); ArrayList<Integer>[] e = new ArrayList[n]; for (int i = 0; i < n; i++) { e[i] = new ArrayList<>(); } for (int i = 0; i < m; i++) { int a =ni() - 1; int b = ni() - 1; e[a].add(b); e[b].add(a); } boolean ans = false; for (int i = 0; i < 100; i++) { Random rand = new Random(); int[] col = new int[n]; Arrays.fill(col, -1); for (int j = 1; j < n; j++) { col[j] = rand.nextInt(4); } boolean[][] dp = new boolean[1 << 4][n]; dp[0][0] = true; for (int s = 0; s < (1 << 4) - 1; s++) { for (int v = 0; v < n; v++) { if (dp[s][v]) { for (int u : e[v]) { if (u != 0) { int t = s | (1 << col[u]); if (t > s) { dp[t][u] = true; } } } } } } for (int j = 1; j < n; j++) { if (dp[(1 << 4) - 1][j]) { for (int v : e[j]) { if (v == 0) { ans = true; } } } } } out.println(ans ? "YES" : "NO"); } }