結果
問題 | No.124 門松列(3) |
ユーザー | eitaho |
提出日時 | 2015-01-12 00:08:01 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,093 bytes |
コンパイル時間 | 1,016 ms |
コンパイル使用メモリ | 117,492 KB |
実行使用メモリ | 27,648 KB |
最終ジャッジ日時 | 2024-06-22 04:09:27 |
合計ジャッジ時間 | 3,146 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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 | 39 ms
27,568 KB |
testcase_01 | WA | - |
testcase_02 | AC | 36 ms
25,692 KB |
testcase_03 | AC | 44 ms
25,640 KB |
testcase_04 | AC | 40 ms
25,428 KB |
testcase_05 | AC | 39 ms
25,388 KB |
testcase_06 | AC | 34 ms
25,560 KB |
testcase_07 | AC | 35 ms
25,520 KB |
testcase_08 | AC | 35 ms
25,432 KB |
testcase_09 | AC | 34 ms
25,140 KB |
testcase_10 | AC | 34 ms
25,428 KB |
testcase_11 | AC | 34 ms
23,348 KB |
testcase_12 | AC | 34 ms
25,516 KB |
testcase_13 | AC | 34 ms
25,432 KB |
testcase_14 | AC | 35 ms
25,556 KB |
testcase_15 | AC | 35 ms
25,688 KB |
testcase_16 | WA | - |
testcase_17 | AC | 36 ms
25,804 KB |
testcase_18 | WA | - |
testcase_19 | AC | 36 ms
25,440 KB |
testcase_20 | WA | - |
testcase_21 | AC | 37 ms
23,348 KB |
testcase_22 | AC | 37 ms
25,432 KB |
testcase_23 | AC | 37 ms
25,688 KB |
testcase_24 | AC | 39 ms
23,344 KB |
testcase_25 | AC | 39 ms
27,648 KB |
testcase_26 | AC | 38 ms
27,504 KB |
testcase_27 | AC | 35 ms
27,516 KB |
testcase_28 | AC | 38 ms
25,308 KB |
testcase_29 | AC | 41 ms
25,564 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.Text; using System.Linq; using System.Diagnostics; using System.Collections.Generic; using Enu = System.Linq.Enumerable; class Program { static readonly int[] dr = { 0, 0, -1, 1 }; static readonly int[] dc = { -1, 1, 0, 0 }; static readonly int INF = (int)1e9; int H, W; void Solve() { W = reader.Int(); H = reader.Int(); var grid = reader.IntGrid(H); var que = new Queue<State>(); var minCost = new int[H, W, 2]; Fill(minCost, INF); minCost[0, 0, 0] = minCost[0, 0, 1] = 0; que.Enqueue(new State(-1, grid[0][0], 0, 0, 0)); while (que.Count > 0) { var s = que.Dequeue(); if (s.r == H - 1 && s.c == W - 1) { Console.WriteLine(s.steps); return; } for (int d = 0; d < dr.Length; d++) { int nr = s.r + dr[d], nc = s.c + dc[d]; if (OK(s, nr, nc, grid)) { int b = (s.curr > grid[nr][nc]) ? 0 : 1; if (s.steps + 1 < minCost[nr, nc, b]) { minCost[nr, nc, b] = s.steps + 1; que.Enqueue(new State(s.curr, grid[nr][nc], nr, nc, s.steps + 1)); } } } } Console.WriteLine(-1); } private bool OK(State s, int nr, int nc, int[][] grid) { if (!IsInside(nr, nc)) return false; int next = grid[nr][nc]; if (s.prev == next || s.curr == next) return false; if (s.prev < 0) return true; int mid = new[] { s.prev, s.curr, next }.OrderBy(e => e).ElementAt(1); return mid == s.prev || mid == next; } bool IsInside(int r, int c) { return r >= 0 && r < H && c >= 0 && c < W; } struct State { public short prev, curr, r, c; public int steps; public State(int p2, int p1, int r, int c, int step) { prev = (short)p2; curr = (short)p1; this.r = (short)r; this.c = (short)c; steps = step; } } 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; } static void Main() { new Program().Solve(); } Reader reader = new Reader(Console.In); 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 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 Enumerable.Range(0, N).Select(i => Int()).ToArray(); } public int[][] IntGrid(int H) { return Enumerable.Range(0, H).Select(i => IntLine()).ToArray(); } public string[] StringArray(int N) { return Enumerable.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++]; } } }