結果
問題 | No.463 魔法使いのすごろく🎲 |
ユーザー | 紙ぺーぱー |
提出日時 | 2016-12-12 13:52:33 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,693 bytes |
コンパイル時間 | 1,059 ms |
コンパイル使用メモリ | 116,004 KB |
実行使用メモリ | 28,272 KB |
最終ジャッジ日時 | 2024-05-07 04:02:15 |
合計ジャッジ時間 | 3,511 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | 34 ms
28,132 KB |
testcase_01 | AC | 32 ms
28,132 KB |
testcase_02 | AC | 33 ms
24,120 KB |
testcase_03 | AC | 32 ms
26,096 KB |
testcase_04 | AC | 32 ms
27,884 KB |
testcase_05 | AC | 32 ms
25,968 KB |
testcase_06 | AC | 32 ms
26,088 KB |
testcase_07 | WA | - |
testcase_08 | AC | 32 ms
26,032 KB |
testcase_09 | AC | 32 ms
25,968 KB |
testcase_10 | AC | 33 ms
26,096 KB |
testcase_11 | AC | 32 ms
26,096 KB |
testcase_12 | AC | 33 ms
26,220 KB |
testcase_13 | AC | 32 ms
26,220 KB |
testcase_14 | AC | 33 ms
26,096 KB |
testcase_15 | AC | 33 ms
28,008 KB |
testcase_16 | AC | 32 ms
26,200 KB |
testcase_17 | AC | 33 ms
28,128 KB |
testcase_18 | AC | 32 ms
24,240 KB |
testcase_19 | AC | 32 ms
28,132 KB |
testcase_20 | WA | - |
testcase_21 | AC | 34 ms
27,992 KB |
testcase_22 | AC | 31 ms
25,040 KB |
testcase_23 | AC | 35 ms
28,268 KB |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | AC | 34 ms
26,096 KB |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | AC | 31 ms
26,220 KB |
testcase_36 | AC | 33 ms
28,148 KB |
testcase_37 | AC | 33 ms
25,960 KB |
testcase_38 | AC | 31 ms
24,816 KB |
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 Point = System.Numerics.Complex; using Number = System.Int64; using C = System.Int32; namespace Program { public class Solver { public void Solve() { var s = Console.ReadLine().Split(' ').Select(int.Parse).ToArray(); s.Validate(x => x.Length == 2); var n = s[0].Validate(x => 2 <= x && x <= 100); var m = s[1].Validate(x => 1 <= x && x <= n); var A = new int[n + 1]; if (n > 2) { s = Console.ReadLine().Split(' ').Select(int.Parse).ToArray().ValidateArray(x => 0 <= x && x <= 1000000000); s.Validate(x => x.Length == n - 2); for (int i = 2; i < n; i++) A[i] = s[i - 2]; } Debug.WriteLine(A.AsJoinedString()); var dp = Enumerate(200, x => new double[n + 1]); for (int k = 0; k < 200; k++) for (int i = 0; i < n; i++) dp[k][i] = -1; Func<int, int, double> dfs = null; dfs = (k, i) => { if (k < 0) return 0.0; if (dp[k][i] > -0.5) return dp[k][i]; var ret = 0.0; for (int j = 1; j <= m; j++) { var go = i + j; if (go > n) go = n - (go - n); ret += A[go]; ret += dfs(k - 1, go); } ret /= m; return dp[k][i] = ret; }; var DP = new double[n + 1]; for (int i = 0; i <= n; i++) DP[i] = -1; Func<int, double> efs = null; efs = i => { //Debug.WriteLine(i); if (DP[i] > -0.5) return DP[i]; if (i + m >= n) return 0; var ret = 0.0; var min = double.MaxValue; for (int j = 1; j <= m; j++) { var go = i + j; if (go > n) go = n - (go - n); ret += A[go]; ret += efs(go); min = Math.Min(min, A[go] + dfs(19, go)); } ret /= m; ret = Math.Min(ret, min); return DP[i] = ret; }; Console.WriteLine("{0:0.000000000}", efs(1)); } 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(); } } #endregion static public class Validator { static public T Validate<T>(this T input, Func<T, bool> f) { if (!f(input)) throw new Exception("invalid input"); return input; } static public T[] ValidateArray<T>(this T[] input, Func<T, bool> f) { foreach (var x in input) if (!f(x)) throw new Exception("invalid input"); return input; } }