結果

問題 No.609 Noelちゃんと星々
ユーザー nebukuro09nebukuro09
提出日時 2017-12-12 16:26:47
言語 Haskell
(9.8.2)
結果
AC  
実行時間 668 ms / 2,000 ms
コード長 710 bytes
コンパイル時間 6,521 ms
コンパイル使用メモリ 175,232 KB
実行使用メモリ 58,240 KB
最終ジャッジ日時 2024-05-08 04:34:42
合計ジャッジ時間 16,135 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge3
このコードへのチャレンジ
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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 445 ms
35,456 KB
testcase_01 AC 232 ms
26,240 KB
testcase_02 AC 158 ms
20,224 KB
testcase_03 AC 215 ms
22,144 KB
testcase_04 AC 108 ms
16,896 KB
testcase_05 AC 603 ms
50,944 KB
testcase_06 AC 490 ms
35,456 KB
testcase_07 AC 299 ms
31,872 KB
testcase_08 AC 60 ms
12,800 KB
testcase_09 AC 176 ms
21,248 KB
testcase_10 AC 365 ms
35,456 KB
testcase_11 AC 339 ms
34,560 KB
testcase_12 AC 424 ms
35,456 KB
testcase_13 AC 80 ms
14,080 KB
testcase_14 AC 33 ms
11,008 KB
testcase_15 AC 504 ms
35,584 KB
testcase_16 AC 616 ms
54,912 KB
testcase_17 AC 459 ms
35,584 KB
testcase_18 AC 159 ms
20,096 KB
testcase_19 AC 496 ms
35,456 KB
testcase_20 AC 631 ms
58,240 KB
testcase_21 AC 633 ms
57,984 KB
testcase_22 AC 661 ms
58,112 KB
testcase_23 AC 657 ms
57,856 KB
testcase_24 AC 668 ms
57,856 KB
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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:4:39: 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."
  |
4 |     | otherwise = check (acm + (abs ((head xs) - v))) v (tail xs)
  |                                       ^^^^

Main.hs:4:58: warning: [GHC-63394] [-Wx-partial]
    In the use of ‘tail’
    (imported from Prelude, 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."
  |
4 |     | otherwise = check (acm + (abs ((head xs) - v))) v (tail xs)
  |                                                          ^^^^
[2 of 2] Linking a.out

ソースコード

diff # 

check :: Integer -> Integer -> [Integer] -> Integer
check acm v xs
    | null xs   = acm
    | otherwise = check (acm + (abs ((head xs) - v))) v (tail xs)

ternary :: Integer -> Integer -> [Integer] -> Integer
ternary hi lo xs
    | hi - lo <= 2 = lo
    | (check 0 mid1 xs) > (check 0 mid2 xs) = ternary mid1 lo xs
    | otherwise = ternary hi mid2 xs
    where
        mid1 = (2 * hi + lo) `div` 3
        mid2 = (hi + 2 * lo) `div` 3

main :: IO ()
main = do
    [n] <- fmap (map read . words) getLine :: IO [Integer]
    xs  <- fmap (map read . words) getLine :: IO [Integer]
    let lo = ternary 1000000000 (-1000000000) xs
    print $ min (min (check 0 lo xs) (check 0 (lo + 1) xs)) (check 0 (lo + 2) xs)
0