結果
問題 | No.86 TVザッピング(2) |
ユーザー | eitaho |
提出日時 | 2015-03-14 01:12:08 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 41 ms / 5,000 ms |
コード長 | 3,515 bytes |
コンパイル時間 | 1,192 ms |
コンパイル使用メモリ | 110,208 KB |
実行使用メモリ | 26,880 KB |
最終ジャッジ日時 | 2024-06-07 10:34:31 |
合計ジャッジ時間 | 3,120 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | 30 ms
19,072 KB |
testcase_01 | AC | 31 ms
19,072 KB |
testcase_02 | AC | 31 ms
18,944 KB |
testcase_03 | AC | 31 ms
19,200 KB |
testcase_04 | AC | 31 ms
19,200 KB |
testcase_05 | AC | 31 ms
19,200 KB |
testcase_06 | AC | 31 ms
19,200 KB |
testcase_07 | AC | 30 ms
19,200 KB |
testcase_08 | AC | 31 ms
19,200 KB |
testcase_09 | AC | 30 ms
19,200 KB |
testcase_10 | AC | 30 ms
19,200 KB |
testcase_11 | AC | 30 ms
18,944 KB |
testcase_12 | AC | 30 ms
18,816 KB |
testcase_13 | AC | 30 ms
19,200 KB |
testcase_14 | AC | 33 ms
20,096 KB |
testcase_15 | AC | 40 ms
26,880 KB |
testcase_16 | AC | 41 ms
26,752 KB |
testcase_17 | AC | 30 ms
19,200 KB |
testcase_18 | AC | 32 ms
19,072 KB |
testcase_19 | AC | 32 ms
19,072 KB |
testcase_20 | AC | 33 ms
18,944 KB |
testcase_21 | AC | 33 ms
19,200 KB |
testcase_22 | AC | 32 ms
19,072 KB |
testcase_23 | AC | 34 ms
20,608 KB |
testcase_24 | AC | 31 ms
19,072 KB |
testcase_25 | AC | 32 ms
18,944 KB |
testcase_26 | AC | 32 ms
19,200 KB |
testcase_27 | AC | 32 ms
19,328 KB |
testcase_28 | AC | 33 ms
19,072 KB |
testcase_29 | AC | 32 ms
19,200 KB |
testcase_30 | AC | 32 ms
19,072 KB |
testcase_31 | AC | 31 ms
19,072 KB |
testcase_32 | AC | 32 ms
19,200 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.Diagnostics; using System.Collections.Generic; using System.Text.RegularExpressions; using Enu = System.Linq.Enumerable; class Program { static readonly int[] DR = { 0, -1, 0, 1 }; static readonly int[] DC = { 1, 0, -1, 0 }; static readonly int[] MoveCand = { 0, 1 }; int H, W, EmptyCount; string[] grid; void Solve() { H = reader.Int(); W = reader.Int(); grid = reader.StringArray(H); EmptyCount = string.Join("", grid).Count(c => c == '.'); if (EmptyCount > (H + W) * 2) { Console.WriteLine("NO"); return; } bool ok = false; for (int r = 0; !ok && r < H; r++) for (int c = 0; !ok && c < W; c++) if (grid[r][c] == '.') for (int d = 0; !ok && d < DR.Length; d++) ok |= OK(r, c, d); Console.WriteLine(ok ? "YES" : "NO"); } private bool OK(int sr, int sc, int d) { if (!Movable(sr + DR[d], sc + DC[d])) return false; var seen = new bool[grid.Length, grid[0].Length]; int count = 0, moveR = 0, r = sr, c = sc; while (true) { if (!MoveNext(ref r, ref c, ref d, ref moveR, seen)) break; count++; seen[r, c] = true; } return r == sr && c == sc && count == EmptyCount; //&& moveR <= 1; } bool MoveNext(ref int r, ref int c, ref int d, ref int R, bool[,] seen) { foreach (int move in MoveCand) { int nd = (d + move) % DR.Length; int nr = r + DR[nd], nc = c + DC[nd]; if (Movable(nr, nc) && !seen[nr, nc]) { r = nr; c = nc; d = nd; if (move == 3) R++; return true; } } return false; } bool Movable(int r, int c) { return r >= 0 && r < H && c >= 0 && c < W && grid[r][c] == '.'; } Reader reader = new Reader(Console.In); static void Main() { new Program().Solve(); } } class Reader { private readonly TextReader reader; private readonly char[] separator = { ' ' }; private readonly StringSplitOptions removeOp = StringSplitOptions.RemoveEmptyEntries; private string[] A = new string[0]; private int i; public Reader(TextReader r) { reader = r; } public Reader(string file) { reader = new StreamReader(file); } public bool HasNext() { return Enqueue(); } public string String() { return Dequeue(); } public int Int() { return int.Parse(Dequeue()); } public long Long() { return long.Parse(Dequeue()); } public double Double() { return double.Parse(Dequeue()); } public int[] IntLine() { var s = Line(); return s == "" ? new int[0] : Array.ConvertAll(Split(s), int.Parse); } public int[] IntArray(int N) { return Enu.Range(0, N).Select(i => Int()).ToArray(); } public int[][] IntGrid(int H) { return Enu.Range(0, H).Select(i => IntLine()).ToArray(); } public string[] StringArray(int N) { return Enu.Range(0, N).Select(i => Line()).ToArray(); } public string Line() { return reader.ReadLine().Trim(); } private string[] Split(string s) { return s.Split(separator, removeOp); } private bool Enqueue() { if (i < A.Length) return true; string line = reader.ReadLine(); if (line == null) return false; if (line == "") return Enqueue(); A = Split(line); i = 0; return true; } private string Dequeue() { Enqueue(); return A[i++]; } }