結果
| 問題 |
No.105 arcの六角ボルト
|
| コンテスト | |
| ユーザー |
aimy
|
| 提出日時 | 2017-04-25 17:02:20 |
| 言語 | Haskell (9.10.1) |
| 結果 |
AC
|
| 実行時間 | 170 ms / 5,000 ms |
| コード長 | 329 bytes |
| コンパイル時間 | 2,036 ms |
| コンパイル使用メモリ | 173,696 KB |
| 実行使用メモリ | 8,448 KB |
| 最終ジャッジ日時 | 2024-09-13 08:50:56 |
| 合計ジャッジ時間 | 2,983 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 1 |
コンパイルメッセージ
Loaded package environment from /home/judge/.ghc/x86_64-linux-9.8.2/environments/default
[1 of 2] Compiling Main ( Main.hs, Main.o )
Main.hs:3:66: warning: [GHC-63394] [-Wx-partial]
In the use of ‘tail’
(imported from Prelude, but defined in GHC.List):
"This is a partial function, it throws an error on empty lists. Replace it with drop 1, or use pattern matching or Data.List.uncons instead. Consider refactoring to use Data.List.NonEmpty."
|
3 | main = interact $ unlines . map (printf "%.9f" . bolt) . read' . tail . lines
| ^^^^
Main.hs:7:33: warning: [GHC-63394] [-Wx-partial]
In the use of ‘tail’
(imported from Prelude, but defined in GHC.List):
"This is a partial function, it throws an error on empty lists. Replace it with drop 1, or use pattern matching or Data.List.uncons instead. Consider refactoring to use Data.List.NonEmpty."
|
7 | where (xys,xs') = splitAt 6 (tail xs)
| ^^^^
Main.hs:10:8: warning: [GHC-63394] [-Wx-partial]
In the use of ‘head’
(imported from Prelude, but defined in GHC.List):
"This is a partial function, it throws an error on empty lists. Use pattern matching or Data.List.uncons instead. Consider refactoring to use Data.List.NonEmpty."
|
10 | bolt = head . filter (\d -> -1 < d && d < 51) . map (\[x,y] -> atan (y/x) * (180/pi))
| ^^^^
[2 of 2] Linking a.out
ソースコード
import Text.Printf main = interact $ unlines . map (printf "%.9f" . bolt) . read' . tail . lines where read' [] = [] read' xs = map (map read . words) xys : read' xs' where (xys,xs') = splitAt 6 (tail xs) bolt :: [[Double]] -> Double bolt = head . filter (\d -> -1 < d && d < 51) . map (\[x,y] -> atan (y/x) * (180/pi))
aimy