結果

問題 No.417 チューリップバブル
ユーザー 紙ぺーぱー紙ぺーぱー
提出日時 2016-08-26 22:53:05
言語 C#(csc)
(csc 3.9.0)
結果
TLE  
実行時間 -
コード長 5,772 bytes
コンパイル時間 2,951 ms
コンパイル使用メモリ 117,628 KB
実行使用メモリ 33,028 KB
最終ジャッジ日時 2024-04-25 21:39:59
合計ジャッジ時間 29,824 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge4
このコードへのチャレンジ
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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 24 ms
31,508 KB
testcase_01 AC 25 ms
26,972 KB
testcase_02 AC 26 ms
24,804 KB
testcase_03 AC 26 ms
24,796 KB
testcase_04 AC 26 ms
24,548 KB
testcase_05 AC 25 ms
24,920 KB
testcase_06 AC 26 ms
26,596 KB
testcase_07 AC 25 ms
24,532 KB
testcase_08 AC 62 ms
24,676 KB
testcase_09 AC 114 ms
26,744 KB
testcase_10 AC 148 ms
24,752 KB
testcase_11 AC 548 ms
24,496 KB
testcase_12 AC 552 ms
26,792 KB
testcase_13 AC 225 ms
24,892 KB
testcase_14 AC 874 ms
24,636 KB
testcase_15 AC 78 ms
24,804 KB
testcase_16 AC 80 ms
24,804 KB
testcase_17 AC 461 ms
26,796 KB
testcase_18 AC 478 ms
24,748 KB
testcase_19 AC 469 ms
26,588 KB
testcase_20 AC 1,850 ms
25,440 KB
testcase_21 AC 1,790 ms
27,572 KB
testcase_22 AC 1,762 ms
25,268 KB
testcase_23 AC 1,754 ms
27,480 KB
testcase_24 AC 25 ms
26,848 KB
testcase_25 AC 1,766 ms
27,436 KB
testcase_26 AC 184 ms
24,808 KB
testcase_27 AC 1,236 ms
25,056 KB
testcase_28 AC 1,749 ms
27,316 KB
testcase_29 AC 1,768 ms
25,572 KB
testcase_30 AC 1,741 ms
25,524 KB
testcase_31 AC 1,796 ms
25,316 KB
testcase_32 AC 35 ms
24,544 KB
testcase_33 AC 81 ms
26,712 KB
testcase_34 AC 619 ms
24,500 KB
testcase_35 TLE -
testcase_36 -- -
testcase_37 -- -
testcase_38 -- -
testcase_39 -- -
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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

diff # 

using System;
using System.Linq;
using System.Linq.Expressions;
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 m = sc.Integer();
            var v = sc.Integer(n);
            var G = Enumerate(n, x => new List<KeyValuePair<int, int>>());
            for (int i = 0; i < n - 1; i++)
            {
                var f = sc.Integer();
                var t = sc.Integer();
                var c = sc.Integer();
                G[f].Add(new KeyValuePair<int, int>(t, c));
                G[t].Add(new KeyValuePair<int, int>(f, c));
            }
            var dp = Enumerate(n, x => new long[m + 1]);
            for (int i = 0; i < n; i++)
                for (int j = 0; j <= m; j++)
                    dp[i][j] = -1145141919;//this is magic number! don't change!!!

            Action<int, int> dfs = null;
            dfs = (prev, cur) =>
              {
                  dp[cur][0] = v[cur];
                  foreach (var e in G[cur])
                  {
                      if (e.Key == prev) continue;
                      dfs(cur, e.Key);
                      for (int i = m; i >= 0; i--)
                          for (int j = 0; j <= m; j++)
                          {
                              if (i + j + 2 * e.Value <= m) dp[cur][i + j + 2 * e.Value] = Math.Max(dp[cur][i + j + 2 * e.Value], dp[cur][i] + dp[e.Key][j]);
                          }
                  }
              };
            dfs(-1, 0);
            IO.Printer.Out.WriteLine(dp[0].Max());
        }
        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 main
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
#region Ex
namespace 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(s, 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
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