結果
問題 | No.845 最長の切符 |
ユーザー | uwi |
提出日時 | 2019-06-28 21:37:02 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 175 ms / 3,000 ms |
コード長 | 3,735 bytes |
コンパイル時間 | 4,168 ms |
コンパイル使用メモリ | 83,172 KB |
実行使用メモリ | 51,352 KB |
最終ジャッジ日時 | 2024-07-02 04:29:01 |
合計ジャッジ時間 | 7,573 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 | 51 ms
36,724 KB |
testcase_01 | AC | 51 ms
36,452 KB |
testcase_02 | AC | 53 ms
36,968 KB |
testcase_03 | AC | 51 ms
36,456 KB |
testcase_04 | AC | 51 ms
36,540 KB |
testcase_05 | AC | 51 ms
36,452 KB |
testcase_06 | AC | 52 ms
36,452 KB |
testcase_07 | AC | 52 ms
36,932 KB |
testcase_08 | AC | 52 ms
36,872 KB |
testcase_09 | AC | 52 ms
36,672 KB |
testcase_10 | AC | 60 ms
37,072 KB |
testcase_11 | AC | 52 ms
36,632 KB |
testcase_12 | AC | 53 ms
36,828 KB |
testcase_13 | AC | 51 ms
36,944 KB |
testcase_14 | AC | 53 ms
36,852 KB |
testcase_15 | AC | 102 ms
40,892 KB |
testcase_16 | AC | 164 ms
50,776 KB |
testcase_17 | AC | 103 ms
40,728 KB |
testcase_18 | AC | 123 ms
46,648 KB |
testcase_19 | AC | 93 ms
39,256 KB |
testcase_20 | AC | 163 ms
50,712 KB |
testcase_21 | AC | 171 ms
50,524 KB |
testcase_22 | AC | 107 ms
40,732 KB |
testcase_23 | AC | 84 ms
37,988 KB |
testcase_24 | AC | 175 ms
51,352 KB |
testcase_25 | AC | 51 ms
36,492 KB |
testcase_26 | AC | 165 ms
50,744 KB |
testcase_27 | AC | 50 ms
36,964 KB |
testcase_28 | AC | 161 ms
50,628 KB |
testcase_29 | AC | 51 ms
36,688 KB |
ソースコード
package contest190628; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.InputMismatchException; public class E { InputStream is; PrintWriter out; String INPUT = ""; void solve() { int n = ni(), m = ni(); int[][] g = new int[n][n]; for(int i = 0;i < n;i++){ Arrays.fill(g[i], -1); } for(int i = 0;i < m;i++){ int a = ni()-1, b = ni()-1, c = ni(); g[a][b] = g[b][a] = Math.max(g[a][b], c); } long[][] dp = new long[1<<n][n]; long ans = 0; for(int i = 1;i < 1<<n;i++){ Arrays.fill(dp[i], -1L); for(int j = 0;j < n;j++){ if(i<<~j<0){ if((i&i-1) == 0){ dp[i][j] = 0; }else{ for(int k = 0;k < n;k++){ if(i<<~k<0 && k != j && dp[i^1<<j][k] >= 0 && g[k][j] >= 0){ // k->j dp[i][j] = Math.max(dp[i][j], dp[i^1<<j][k] + g[k][j]); } } } ans = Math.max(ans, dp[i][j]); } } } out.println(ans); } void run() throws Exception { is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); out = new PrintWriter(System.out); long s = System.currentTimeMillis(); solve(); out.flush(); if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){ // @Override // public void run() { // long s = System.currentTimeMillis(); // solve(); // out.flush(); // if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // } // }; // t.start(); // t.join(); } public static void main(String[] args) throws Exception { new E().run(); } private byte[] inbuf = new byte[1024]; public int lenbuf = 0, ptrbuf = 0; private int readByte() { if(lenbuf == -1)throw new InputMismatchException(); if(ptrbuf >= lenbuf){ ptrbuf = 0; try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); } if(lenbuf <= 0)return -1; } return inbuf[ptrbuf++]; } private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); } private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; } private double nd() { return Double.parseDouble(ns()); } private char nc() { return (char)skip(); } private String ns() { int b = skip(); StringBuilder sb = new StringBuilder(); while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ') sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } private char[] ns(int n) { char[] buf = new char[n]; int b = skip(), p = 0; while(p < n && !(isSpaceChar(b))){ buf[p++] = (char)b; b = readByte(); } return n == p ? buf : Arrays.copyOf(buf, p); } private int[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private long[] nal(int n) { long[] a = new long[n]; for(int i = 0;i < n;i++)a[i] = nl(); return a; } private char[][] nm(int n, int m) { char[][] map = new char[n][]; for(int i = 0;i < n;i++)map[i] = ns(m); return map; } private int[][] nmi(int n, int m) { int[][] map = new int[n][]; for(int i = 0;i < n;i++)map[i] = na(m); return map; } private int ni() { return (int)nl(); } private long nl() { long num = 0; int b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); } }