結果
問題 | No.134 走れ!サブロー君 |
ユーザー |
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提出日時 | 2015-01-22 23:50:05 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 45 ms / 5,000 ms |
コード長 | 5,889 bytes |
コンパイル時間 | 2,560 ms |
コンパイル使用メモリ | 110,464 KB |
実行使用メモリ | 19,968 KB |
最終ジャッジ日時 | 2024-10-14 17:10:54 |
合計ジャッジ時間 | 2,268 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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ファイルパターン | 結果 |
---|---|
other | AC * 15 |
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;namespace Program{public class Solver{public void Solve(){var zero = sc.Integer(2);var n = sc.Integer();n++;var a = new double[n][];a[0] = new double[] { zero[0], zero[1], 0 };for (int i = 1; i < n; i++)a[i] = sc.Double(3);double sum = 0;foreach (var x in a)sum += x[2];var dp = new double[1 << n, n];for (int i = 0; i < 1 << n; i++)for (int j = 0; j < n; j++)dp[i, j] = double.MaxValue;dp[1, 0] = 0;var W = new double[1 << n];for (int i = 0; i < 1 << n; i++){double val = 0;for (int j = 0; j < n; j++)if ((i >> j) % 2 == 1) val += a[j][2];W[i] = sum - val;}for (int i = 0; i < 1 << n; i++){for (int j = 0; j < n; j++){if (dp[i, j] == double.MaxValue) continue;if (((i >> j) % 2) == 0) continue;for (int k = 0; k < n; k++){if (((i >> k) % 2) == 1) continue;var dx = Math.Abs(a[j][0] - a[k][0]);var dy = Math.Abs(a[j][1] - a[k][1]);var d = dx + dy;dp[i | (1 << k), k] = Math.Min(dp[i | (1 << k), k], dp[i, j] + (d * (W[i] + 100) / 120.0));}}}var min = double.MaxValue;for (int i = 1; i < n; i++){var dx = Math.Abs(a[0][0] - a[i][0]);var dy = Math.Abs(a[0][1] - a[i][1]);min = Math.Min(min,sum + dp[(1 << n) - 1, i] + (dx + dy) * 100 / 120.0);}IO.Printer.Out.WriteLine(min);}internal IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput());static 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; }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; }}}#region Exnamespace Program.IO{using System.IO;using System.Linq;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 System.Globalization.CultureInfo.InvariantCulture; } }public Printer(System.IO.Stream stream) : base(stream, new System.Text.UTF8Encoding(false, true)) { }public void Write<T>(string format, IEnumerable<T> source) { base.Write(format, source.OfType<object>().ToArray()); }public void WriteLine<T>(string format, IEnumerable<T> source) { base.WriteLine(format, source.OfType<object>().ToArray()); }}public class StreamScanner{public StreamScanner(Stream stream) { str = stream; }private 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); return (char)b; }public char[] Char(int n) { var a = new char[n]; for (int i = 0; i < n; i++) a[i] = Char(); return a; }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 long Long(){if (isEof) return long.MinValue;long ret = 0; byte b = 0; var ng = false;do b = read();while (b != '-' && (b < '0' || '9' < b));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() { return double.Parse(Scan(), System.Globalization.CultureInfo.InvariantCulture); }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 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); }public void Flush() { str.Flush(); }}}static 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