結果
問題 | No.185 和風 |
ユーザー | 情報学生 |
提出日時 | 2019-08-21 15:45:04 |
言語 | Haskell (9.8.2) |
結果 |
AC
|
実行時間 | 7 ms / 1,000 ms |
コード長 | 399 bytes |
コンパイル時間 | 6,748 ms |
コンパイル使用メモリ | 169,472 KB |
実行使用メモリ | 8,064 KB |
最終ジャッジ日時 | 2024-10-09 04:34:48 |
合計ジャッジ時間 | 7,061 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 5 ms
7,680 KB |
testcase_01 | AC | 7 ms
8,064 KB |
testcase_02 | AC | 7 ms
7,936 KB |
testcase_03 | AC | 6 ms
7,808 KB |
testcase_04 | AC | 7 ms
8,064 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 6 ms
7,808 KB |
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:7:84: warning: [GHC-63394] [-Wx-partial] In the use of ‘tail’ (imported from Data.List, 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 | main = interact $ show . solve . map (\[x, y] -> y - x) . splitEvery2 . map read . tail . words | ^^^^ Main.hs:12:25: warning: [GHC-63394] [-Wx-partial] In the use of ‘head’ (imported from Data.List, 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." | 12 | else if head xs <= 0 then -1 else head xs | ^^^^ Main.hs:12:51: warning: [GHC-63394] [-Wx-partial] In the use of ‘head’ (imported from Data.List, 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." | 12 | else if head xs <= 0 then -1 else head xs | ^^^^ [2 of 2] Linking a.out
ソースコード
import Data.List splitEvery2 :: [Int] -> [[Int]] splitEvery2 = takeWhile (not . null) . map (take 2) . iterate (drop 2) main :: IO () main = interact $ show . solve . map (\[x, y] -> y - x) . splitEvery2 . map read . tail . words solve :: [Int] -> Int solve xs = if t /= 1 then -1 else if head xs <= 0 then -1 else head xs where t = length $ group xs