結果
| 問題 | No.1169 Row and Column and Diagonal |
| コンテスト | |
| ユーザー |
poapoa
|
| 提出日時 | 2020-08-15 01:11:00 |
| 言語 | Haskell (9.14.1) |
| 結果 |
AC
|
| 実行時間 | 21 ms / 2,000 ms |
| コード長 | 423 bytes |
| 記録 | |
| コンパイル時間 | 10,469 ms |
| コンパイル使用メモリ | 192,512 KB |
| 実行使用メモリ | 10,112 KB |
| 最終ジャッジ日時 | 2026-04-26 19:37:10 |
| 合計ジャッジ時間 | 2,297 ms |
|
ジャッジサーバーID (参考情報) |
judge3_1 / judge2_0 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 13 |
コンパイルメッセージ
Loaded package environment from /home/judge/.ghc/x86_64-linux-9.14.1/environments/default
[1 of 2] Compiling Main ( Main.hs, Main.o )
Main.hs:16:12: warning: [GHC-63394] [-Wx-partial]
In the use of ‘tail’
(imported from Prelude, but defined in GHC.Internal.List):
"This is a partial function, it throws an error on empty lists. Replace it with 'drop' 1, or use pattern matching or 'GHC.Internal.Data.List.uncons' instead. Consider refactoring to use "Data.List.NonEmpty"."
|
16 | shift xs = tail xs ++ [head xs]
| ^^^^
Main.hs:16:24: warning: [GHC-63394] [-Wx-partial]
In the use of ‘head’
(imported from Prelude, but defined in GHC.Internal.List):
"This is a partial function, it throws an error on empty lists. Use pattern matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider refactoring to use "Data.List.NonEmpty"."
|
16 | shift xs = tail xs ++ [head xs]
| ^^^^
[2 of 2] Linking a.out
ソースコード
import qualified Control.Monad as M main :: IO () main = do n <- readLn :: IO Int let m = (n `div` 2) + 1 let xs = merge [1..m] [m+1..n] let ys = iterate shift xs putStr . unlines . map (unwords . map show) . take n $ ys merge :: [Int] -> [Int] -> [Int] merge xs [] = xs merge [] ys = ys merge (x:xs) (y:ys) = x : y : merge xs ys shift :: [Int] -> [Int] shift xs = tail xs ++ [head xs]
poapoa