結果
問題 |
No.462 6日知らずのコンピュータ
|
ユーザー |
|
提出日時 | 2017-04-15 12:47:59 |
言語 | Haskell (9.10.1) |
結果 |
WA
|
実行時間 | - |
コード長 | 723 bytes |
コンパイル時間 | 1,527 ms |
コンパイル使用メモリ | 171,776 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-18 17:54:54 |
合計ジャッジ時間 | 3,376 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 41 WA * 43 |
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:25:34: 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." | 25 | | (checkBit as $ head as) == True = countGroup (n + 1) $ last as | ^^^^ [2 of 2] Linking a.out
ソースコード
import Data.Int import Data.List import Data.Bits factorial 0 = 1 factorial x = factorial (x-1) * x checkBit :: [Int64] -> Int64 -> Bool checkBit [] x = True checkBit (a:as) x = checkBit as a && x == x .&. a countGroup n x = factorial (n - popCount x) ans x = x `mod` (10^9 + 7) main = do str1 <- getLine let [n, k] = map read $ words str1 :: [Int] str2 <- if k /= 0 then getLine else return ("") let as = sort $ map read $ words str2 :: [Int64] result | k == 0 = factorial n | (checkBit as $ head as) == True = countGroup (n + 1) $ last as | otherwise = 0 print $ ans result