結果

問題 No.138 化石のバージョン
コンテスト
ユーザー dsplit
提出日時 2019-08-15 15:13:31
言語 Haskell
(9.14.1)
コンパイル:
ghc -rtsopts -with-rtsopts=-K1G -o a.out -O2 _filename_
実行:
./a.out
結果
WA  
実行時間 -
コード長 425 bytes
記録
記録タグの例:
初AC ショートコード 純ショートコード 純主流ショートコード 最速実行時間
コンパイル時間 1,675 ms
コンパイル使用メモリ 194,304 KB
実行使用メモリ 7,976 KB
最終ジャッジ日時 2026-04-08 02:30:07
合計ジャッジ時間 2,006 ms
ジャッジサーバーID
（参考情報） 		judge2_1 / judge1_0
このコードへのチャレンジ
（要ログイン）
ファイルパターン 結果
sample AC * 3
other AC * 20 WA * 13
権限があれば一括ダウンロードができます
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:7:19: 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"."
  |
7 | solve [a, b] = if head a < head b 
  |                   ^^^^

Main.hs:7:28: 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"."
  |
7 | solve [a, b] = if head a < head b 
  |                            ^^^^

Main.hs:9:26: 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"."
  |
9 |                 else if (head $ drop 1 a) < (head $ drop 1 b) 
  |                          ^^^^

Main.hs:9:46: 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"."
  |
9 |                 else if (head $ drop 1 a) < (head $ drop 1 b) 
  |                                              ^^^^

Main.hs:11:34: warning: [GHC-63394] [-Wx-partial]
    In the use of ‘head’
    (imported from Prelude, but defined

ソースコード

diff #
raw source code 

import Data.List.Split

main :: IO ()
main = interact $ solve . map (splitOn ".") . words

solve :: [[String]] -> String
solve [a, b] = if head a < head b 
                then "NO"
                else if (head $ drop 1 a) < (head $ drop 1 b) 
                        then "NO"
                        else if (head $ drop 2 a) < (head $ drop 2 b)
                            then "NO"
                            else "YES"
0