結果
問題 | No.424 立体迷路 |
ユーザー | ichibanshibori |
提出日時 | 2016-09-24 00:26:37 |
言語 | F# (F# 4.0) |
結果 |
AC
|
実行時間 | 1,456 ms / 2,000 ms |
コード長 | 2,328 bytes |
コンパイル時間 | 3,726 ms |
コンパイル使用メモリ | 168,676 KB |
実行使用メモリ | 30,272 KB |
最終ジャッジ日時 | 2023-09-18 16:54:38 |
合計ジャッジ時間 | 8,879 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge11 |
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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 | 106 ms
23,348 KB |
testcase_01 | AC | 105 ms
23,452 KB |
testcase_02 | AC | 96 ms
25,228 KB |
testcase_03 | AC | 107 ms
23,512 KB |
testcase_04 | AC | 106 ms
23,600 KB |
testcase_05 | AC | 95 ms
25,240 KB |
testcase_06 | AC | 87 ms
23,004 KB |
testcase_07 | AC | 95 ms
25,248 KB |
testcase_08 | AC | 88 ms
20,980 KB |
testcase_09 | AC | 95 ms
23,264 KB |
testcase_10 | AC | 96 ms
21,076 KB |
testcase_11 | AC | 101 ms
23,372 KB |
testcase_12 | AC | 100 ms
23,356 KB |
testcase_13 | AC | 104 ms
23,524 KB |
testcase_14 | AC | 96 ms
23,252 KB |
testcase_15 | AC | 110 ms
23,580 KB |
testcase_16 | AC | 108 ms
25,488 KB |
testcase_17 | AC | 104 ms
23,428 KB |
testcase_18 | AC | 95 ms
23,316 KB |
testcase_19 | AC | 108 ms
23,420 KB |
testcase_20 | AC | 93 ms
23,016 KB |
testcase_21 | AC | 102 ms
23,428 KB |
testcase_22 | AC | 108 ms
23,488 KB |
testcase_23 | AC | 102 ms
23,288 KB |
testcase_24 | AC | 113 ms
25,588 KB |
testcase_25 | AC | 1,456 ms
30,272 KB |
コンパイルメッセージ
Microsoft (R) F# Compiler version 11.0.0.0 for F# 5.0 Copyright (c) Microsoft Corporation. All Rights Reserved.
ソースコード
open System let () = let h, w = stdin.ReadLine () |> (fun l -> l.Split ()) |> (fun arr -> (int arr.[0], int arr.[1])) let sx, sy, gx, gy = stdin.ReadLine () |> (fun l -> l.Split ()) |> (fun arr -> (int arr.[0], int arr.[1], int arr.[2], int arr.[3])) let mapArr = Array2D.zeroCreateBased<int> 1 1 w h let readB (x, line:string) = seq {1..w} |> Seq.iter (fun y -> mapArr.[y, x] <- int line.[y - 1] - int '0') seq { for x in 1..h -> (x, stdin.ReadLine ()) } |> Seq.iter readB let searchPath startY startX = let dxy = [(1, 0); (-1, 0); (0, 1); (0, -1)] let canMove1 (cy, cx) (dy, dx) = let y, x = cy + dy, cx + dx y >= 1 && y <= w && x >= 1 && x <= h && abs(mapArr.[y, x] - mapArr.[cy, cx]) <= 1 let canMove2 (cy, cx) (dy, dx) = let y1, y2 = cy + dy, cy + dy * 2 let x1, x2 = cx + dx, cx + dx * 2 y2 >= 1 && y2 <= w && x2 >= 1 && x2 <= h && mapArr.[cy, cx] = mapArr.[y2, x2] && mapArr.[cy, cx] > mapArr.[y1, x1] let rec searchPath' lst chkedSet = match lst with | [] -> false | pos::rest -> let cy, cx = pos let cand1 = List.filter (canMove1 (cy, cx)) dxy let cand2 = List.filter (canMove2 (cy, cx)) dxy |> List.map (fun (dy, dx) -> (dy * 2, dx * 2)) let cand = List.append cand1 cand2 let candLst = List.map (fun (dy, dx) -> (cy + dy, cx + dx)) cand if List.contains (gy, gx) candLst then true else let nextLst = List.append candLst rest |> List.filter (fun pos -> not (Set.contains pos chkedSet)) |> List.sortBy (fun (y, x) -> abs(gy - y) + abs(gx - x)) let nextChkedSet = Set.add (cy, cx) chkedSet searchPath' nextLst nextChkedSet if startY = gy && startX = gx then true else searchPath' [(startY, startX)] Set.empty searchPath sy sx |> (function | true -> "YES" | false -> "NO") |> printfn "%s"