結果
問題 | No.367 ナイトの転身 |
ユーザー | eitaho |
提出日時 | 2016-04-29 22:48:05 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 155 ms / 2,000 ms |
コード長 | 3,925 bytes |
コンパイル時間 | 2,194 ms |
コンパイル使用メモリ | 119,824 KB |
実行使用メモリ | 27,424 KB |
最終ジャッジ日時 | 2024-10-04 18:26:57 |
合計ジャッジ時間 | 3,360 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 28 ms
25,516 KB |
testcase_01 | AC | 30 ms
27,232 KB |
testcase_02 | AC | 29 ms
23,092 KB |
testcase_03 | AC | 29 ms
25,516 KB |
testcase_04 | AC | 28 ms
25,136 KB |
testcase_05 | AC | 29 ms
25,444 KB |
testcase_06 | AC | 31 ms
25,320 KB |
testcase_07 | AC | 27 ms
23,476 KB |
testcase_08 | AC | 28 ms
26,912 KB |
testcase_09 | AC | 27 ms
25,392 KB |
testcase_10 | AC | 126 ms
26,540 KB |
testcase_11 | AC | 155 ms
26,672 KB |
testcase_12 | AC | 53 ms
27,424 KB |
testcase_13 | AC | 54 ms
25,264 KB |
testcase_14 | AC | 69 ms
25,520 KB |
testcase_15 | AC | 30 ms
27,176 KB |
testcase_16 | AC | 65 ms
25,308 KB |
testcase_17 | AC | 32 ms
25,252 KB |
testcase_18 | AC | 35 ms
25,240 KB |
testcase_19 | AC | 37 ms
24,920 KB |
testcase_20 | AC | 32 ms
27,048 KB |
testcase_21 | AC | 40 ms
25,176 KB |
testcase_22 | AC | 31 ms
25,004 KB |
testcase_23 | AC | 29 ms
23,092 KB |
testcase_24 | AC | 29 ms
25,268 KB |
testcase_25 | AC | 29 ms
27,304 KB |
testcase_26 | AC | 28 ms
25,008 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.IO; using System.Linq; using System.Text; using System.Collections.Generic; using System.Diagnostics; using System.Numerics; using Enu = System.Linq.Enumerable; public class Program { static readonly int INF = (int)1e9; static readonly int[][] DR = { new[] { -2, -2, 2, 2, -1, -1, 1, 1 }, new[] { -1, -1, 1, 1 } }; static readonly int[][] DC = { new[] { -1, 1, -1, 1, -2, 2, -2, 2 }, new[] { -1, 1, -1, 1 } }; public void Solve() { int H = Reader.Int(), W = Reader.Int(); var grid = Reader.StringArray(H); int sr = 0, sc = 0, gr = 0, gc = 0; for (int r = 0; r < H; r++) for (int c = 0; c < W; c++) if (grid[r][c] == 'S') { sr = r; sc = c; } else if (grid[r][c] == 'G') { gr = r; gc = c; } var minSteps = new int[H, W, 2]; Fill(minSteps, INF); minSteps[sr, sc, 0] = 0; var que = new Queue<int>(); que.Enqueue(sr); que.Enqueue(sc); que.Enqueue(0); Func<int, int, bool> IsInside = (r, c) => r >= 0 && r < H && c >= 0 && c < W; while (que.Count > 0) { int r = que.Dequeue(), c = que.Dequeue(), type = que.Dequeue(); for (int d = 0; d < DR[type].Length; d++) { int nr = r + DR[type][d], nc = c + DC[type][d]; if (IsInside(nr, nc)) { int nextType = type ^ (grid[nr][nc] == 'R' ? 1 : 0); if (minSteps[nr, nc, nextType] == INF) { if (nr == gr && nc == gc) { Console.WriteLine(minSteps[r, c, type] + 1); return; } minSteps[nr, nc, nextType] = minSteps[r, c, type] + 1; que.Enqueue(nr); que.Enqueue(nc); que.Enqueue(nextType); } } } } Console.WriteLine(-1); } void Fill<T>(T[, ,] a, T val) { for (int i = 0; i < a.GetLength(0); i++) for (int j = 0; j < a.GetLength(1); j++) for (int k = 0; k < a.GetLength(2); k++) a[i, j, k] = val; } } class Entry { static void Main() { new Program().Solve(); } } class Reader { static TextReader reader = Console.In; static readonly char[] separator = { ' ' }; static readonly StringSplitOptions op = StringSplitOptions.RemoveEmptyEntries; static string[] A = new string[0]; static int i; static void Init() { A = new string[0]; } public static void Set(TextReader r) { reader = r; Init(); } public static void Set(string file) { reader = new StreamReader(file); Init(); } public static bool HasNext() { return CheckNext(); } public static string String() { return Next(); } public static int Int() { return int.Parse(Next()); } public static long Long() { return long.Parse(Next()); } public static double Double() { return double.Parse(Next()); } public static int[] IntLine() { return Array.ConvertAll(Split(Line()), int.Parse); } public static int[] IntArray(int N) { return Range(N, Int); } public static int[][] IntTable(int H) { return Range(H, IntLine); } public static string[] StringArray(int N) { return Range(N, Next); } public static string[][] StringTable(int N) { return Range(N, () => Split(Line())); } public static string Line() { return reader.ReadLine().Trim(); } static T[] Range<T>(int N, Func<T> f) { return Enu.Range(0, N).Select(i => f()).ToArray(); } static string[] Split(string s) { return s.Split(separator, op); } static string Next() { CheckNext(); return A[i++]; } static bool CheckNext() { if (i < A.Length) return true; string line = reader.ReadLine(); if (line == null) return false; if (line == "") return CheckNext(); A = Split(line); i = 0; return true; } }