結果
問題 | No.185 和風 |
ユーザー |
|
提出日時 | 2015-07-19 04:28:09 |
言語 | Haskell (9.10.1) |
結果 |
AC
|
実行時間 | 7 ms / 1,000 ms |
コード長 | 304 bytes |
コンパイル時間 | 1,830 ms |
コンパイル使用メモリ | 174,976 KB |
実行使用メモリ | 8,320 KB |
最終ジャッジ日時 | 2024-07-08 10:18:49 |
合計ジャッジ時間 | 1,743 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
other | AC * 7 |
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:5:19: 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." | 5 | | same xs' && head xs' > 0 = head xs' | ^^^^ Main.hs:5:34: 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." | 5 | | same xs' && head xs' > 0 = head xs' | ^^^^ [2 of 2] Linking a.out
ソースコード
main = getLine >> getContents >>= print . solve . map (map read . words) . lines solve :: [[Int]] -> Int solve xs | same xs' && head xs' > 0 = head xs' | otherwise = -1 where xs' = map (\[x, y] -> y - x) xs same (y : ys) = foldl (\acc x -> y == x && acc) True ys