結果
問題 | No.334 門松ゲーム |
ユーザー |
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提出日時 | 2016-01-15 22:42:00 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 31 ms / 2,000 ms |
コード長 | 6,507 bytes |
コンパイル時間 | 940 ms |
コンパイル使用メモリ | 116,792 KB |
実行使用メモリ | 26,996 KB |
最終ジャッジ日時 | 2024-09-19 19:19:05 |
合計ジャッジ時間 | 1,985 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 13 |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System;using System.Linq;using System.Collections.Generic;using Debug = System.Diagnostics.Debug;using StringBuilder = System.Text.StringBuilder;using System.Numerics;using Number = System.Int64;namespace Program{public class Solver{public void Solve(){var n = sc.Integer();var a = sc.Integer(n);var dp = new int[1 << n];for (int i = 0; i < 1 << n; i++)dp[i] = -1;Func<int, int> dfs = null;dfs = (mask) =>{if (dp[mask] >= 0) return dp[mask];for (int i = 0; i < n; i++){if ((mask >> i & 1) == 1) continue;for (int j = i + 1; j < n; j++){if ((mask >> j & 1) == 1) continue;for (int k = j + 1; k < n; k++){if ((mask >> k & 1) == 1) continue;if (!ISOTAKUDAIGAKU(a[i], a[j], a[k])) continue;var nmask = mask | (1 << i) | (1 << j) | (1 << k);if (dfs(nmask) == 0)return dp[mask] = 1;}}}return dp[mask] = 0;};var otaku = dfs(0);if (otaku == 0){IO.Printer.Out.WriteLine(-1);return;}for (int i = 0; i < n; i++)for (int j = i + 1; j < n; j++)for (int k = j + 1; k < n; k++){var mask = (1 << i) | (1 << j) | (1 << k);if (dp[mask] == 0){IO.Printer.Out.WriteLine("{0} {1} {2}", i, j, k);}}}public bool ISOTAKUDAIGAKU(long l, long m, long r){var a = new long[] { l, m, r };return ISOTAKUDAIGAKU(a);}public bool ISOTAKUDAIGAKU(long[] a){if (a.Length != 3) return false;if (a.Distinct().Count() != 3) return false;if (a[0] < a[1] && a[1] > a[2]) return true;if (a[0] > a[1] && a[1] < a[2]) return true;return false;}public IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput());static T[] Enumerate<T>(int n, Func<int, T> f) { var a = new T[n]; for (int i = 0; i < n; ++i) a[i] = f(i); return a; }static public void Swap<T>(ref T a, ref T b) { var tmp = a; a = b; b = tmp; }}}#region mainstatic class Ex{static public string AsString(this IEnumerable<char> ie) { return new string(System.Linq.Enumerable.ToArray(ie)); }static public string AsJoinedString<T>(this IEnumerable<T> ie, string st = " ") { return string.Join(st, ie); }static public void Main(){var solver = new Program.Solver();solver.Solve();Program.IO.Printer.Out.Flush();}}#endregion#region Exnamespace Program.IO{using System.IO;using System.Text;using System.Globalization;public class Printer : StreamWriter{static Printer() { Out = new Printer(Console.OpenStandardOutput()) { AutoFlush = false }; }public static Printer Out { get; set; }public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } }public Printer(System.IO.Stream stream) : base(stream, new UTF8Encoding(false, true)) { }public Printer(System.IO.Stream stream, Encoding encoding) : base(stream, encoding) { }public void Write<T>(string format, T[] source) { base.Write(format, source.OfType<object>().ToArray()); }public void WriteLine<T>(string format, T[] source) { base.WriteLine(format, source.OfType<object>().ToArray()); }}public class StreamScanner{public StreamScanner(Stream stream) { str = stream; }public readonly Stream str;private readonly byte[] buf = new byte[1024];private int len, ptr;public bool isEof = false;public bool IsEndOfStream { get { return isEof; } }private byte read(){if (isEof) return 0;if (ptr >= len) { ptr = 0; if ((len = str.Read(buf, 0, 1024)) <= 0) { isEof = true; return 0; } }return buf[ptr++];}public char Char() { byte b = 0; do b = read(); while ((b < 33 || 126 < b) && !isEof); return (char)b; }public string Scan(){var sb = new StringBuilder();for (var b = Char(); b >= 33 && b <= 126; b = (char)read())sb.Append(b);return sb.ToString();}public string ScanLine(){var sb = new StringBuilder();for (var b = Char(); b != '\n'; b = (char)read())if (b == 0) break;else if (b != '\r') sb.Append(b);return sb.ToString();}public long Long(){if (isEof) return long.MinValue;long ret = 0; byte b = 0; var ng = false;do b = read();while (b != 0 && b != '-' && (b < '0' || '9' < b));if (b == 0) return long.MinValue;if (b == '-') { ng = true; b = read(); }for (; true; b = read()){if (b < '0' || '9' < b)return ng ? -ret : ret;else ret = ret * 10 + b - '0';}}public int Integer() { return (isEof) ? int.MinValue : (int)Long(); }public double Double() { var s = Scan(); return s != "" ? double.Parse(Scan(), CultureInfo.InvariantCulture) : double.NaN; }private T[] enumerate<T>(int n, Func<T> f){var a = new T[n];for (int i = 0; i < n; ++i) a[i] = f();return a;}public char[] Char(int n) { return enumerate(n, Char); }public string[] Scan(int n) { return enumerate(n, Scan); }public double[] Double(int n) { return enumerate(n, Double); }public int[] Integer(int n) { return enumerate(n, Integer); }public long[] Long(int n) { return enumerate(n, Long); }}}#endregion