結果
問題 | No.1151 チャレンジゲーム |
ユーザー | uwi |
提出日時 | 2020-08-15 16:11:53 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 1,895 ms / 2,000 ms |
コード長 | 4,595 bytes |
コンパイル時間 | 3,954 ms |
コンパイル使用メモリ | 82,976 KB |
実行使用メモリ | 49,652 KB |
最終ジャッジ日時 | 2024-04-19 01:23:22 |
合計ジャッジ時間 | 29,428 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
(要ログイン)
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 | 116 ms
41,652 KB |
testcase_01 | AC | 123 ms
41,376 KB |
testcase_02 | AC | 158 ms
41,308 KB |
testcase_03 | AC | 108 ms
40,084 KB |
testcase_04 | AC | 123 ms
41,056 KB |
testcase_05 | AC | 123 ms
41,152 KB |
testcase_06 | AC | 120 ms
41,056 KB |
testcase_07 | AC | 121 ms
41,132 KB |
testcase_08 | AC | 123 ms
41,540 KB |
testcase_09 | AC | 117 ms
41,064 KB |
testcase_10 | AC | 129 ms
41,328 KB |
testcase_11 | AC | 140 ms
41,308 KB |
testcase_12 | AC | 156 ms
42,804 KB |
testcase_13 | AC | 413 ms
44,248 KB |
testcase_14 | AC | 340 ms
43,660 KB |
testcase_15 | AC | 469 ms
43,620 KB |
testcase_16 | AC | 298 ms
43,896 KB |
testcase_17 | AC | 376 ms
43,944 KB |
testcase_18 | AC | 382 ms
43,724 KB |
testcase_19 | AC | 324 ms
43,980 KB |
testcase_20 | AC | 344 ms
43,628 KB |
testcase_21 | AC | 452 ms
44,032 KB |
testcase_22 | AC | 362 ms
43,864 KB |
testcase_23 | AC | 378 ms
44,028 KB |
testcase_24 | AC | 373 ms
44,384 KB |
testcase_25 | AC | 322 ms
43,748 KB |
testcase_26 | AC | 334 ms
43,760 KB |
testcase_27 | AC | 384 ms
43,976 KB |
testcase_28 | AC | 433 ms
44,988 KB |
testcase_29 | AC | 547 ms
45,092 KB |
testcase_30 | AC | 647 ms
45,140 KB |
testcase_31 | AC | 514 ms
44,856 KB |
testcase_32 | AC | 548 ms
44,920 KB |
testcase_33 | AC | 721 ms
45,364 KB |
testcase_34 | AC | 563 ms
44,928 KB |
testcase_35 | AC | 778 ms
45,612 KB |
testcase_36 | AC | 897 ms
45,344 KB |
testcase_37 | AC | 723 ms
45,176 KB |
testcase_38 | AC | 430 ms
44,248 KB |
testcase_39 | AC | 777 ms
45,292 KB |
testcase_40 | AC | 525 ms
45,008 KB |
testcase_41 | AC | 999 ms
46,012 KB |
testcase_42 | AC | 834 ms
45,524 KB |
testcase_43 | AC | 803 ms
45,252 KB |
testcase_44 | AC | 432 ms
44,764 KB |
testcase_45 | AC | 570 ms
45,376 KB |
testcase_46 | AC | 669 ms
45,020 KB |
testcase_47 | AC | 474 ms
44,868 KB |
testcase_48 | AC | 155 ms
41,764 KB |
testcase_49 | AC | 1,895 ms
49,652 KB |
testcase_50 | AC | 306 ms
44,476 KB |
testcase_51 | AC | 633 ms
45,020 KB |
testcase_52 | AC | 488 ms
45,132 KB |
ソースコード
package no1xxx; 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 No1151 { InputStream is; PrintWriter out; String INPUT = ""; void solve() { int n = ni(); int[] a = na(n); int O = 0; for(int v : a){ O += v; } O = O / 2 + 2; double[][][] P = new double[2][1<<n][2*O+1]; for(int j = O+1;j <= 2*O;j++){ P[0][0][j] = 1; P[1][0][j] = 1; } for(int i = 1;i < 1<<n;i++){ int[] b = new int[Integer.bitCount(i)]; int p = 0; for(int j = 0;j < n;j++){ if(i<<~j<0){ b[p++] = j; } } double[] h1 = new double[n]; double[] h2 = new double[n]; for(int j = 0;j <= 2*O;j++){ double pl = 0, mi = 1; for(int k : b){ h1[k] = (j+a[k] <= 2*O ? P[1][i^1<<k][j+a[k]] : 1.); h2[k] = (j-a[k] >= 0 ? P[0][i^1<<k][j-a[k]] : 0.); } for(int rep = 0;;rep++){ double npl = 0, nmi = 1; for(int k : b){ npl = Math.max(npl, (h1[k] - mi) / a[k] + mi); nmi = Math.min(nmi, (h2[k] - pl) / a[k] + pl); // if(i + 1 == 1<<n && rep == 10)tr(j, k, (j+a[k] <= 2*O ? P[1][i^1<<k][j+a[k]] : 1.) / a[k] + mi * (1-1./a[k])); // if(i + 1 == 1<<n && rep < 2)tr(j, k, (j-a[k] >= 0 ? P[0][i^1<<k][j-a[k]] : 0.) / a[k] + pl * (1-1./a[k])); } boolean end = Math.abs(pl - npl) + Math.abs(mi - nmi) < 1e-6; pl = npl; mi = nmi; if(end){ // tr(i, j, rep); break; } } P[0][i][j] = pl; P[1][i][j] = mi; } } out.printf("%.14f\n", P[0][(1<<n)-1][O]); } void run() throws Exception { // int n = 10, m = 99999; // Random gen = new Random(); // StringBuilder sb = new StringBuilder(); // sb.append(n + " "); // for (int i = 0; i < n; i++) { // sb.append(gen.nextInt(20)+1 + " "); // } // INPUT = sb.toString(); 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 No1151().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)); } }