結果
問題 | No.136 Yet Another GCD Problem |
ユーザー | Michae'Gon |
提出日時 | 2015-04-21 19:46:38 |
言語 | Haskell (9.10.1) |
結果 |
AC
|
実行時間 | 24 ms / 5,000 ms |
コード長 | 354 bytes |
コンパイル時間 | 1,568 ms |
コンパイル使用メモリ | 172,800 KB |
実行使用メモリ | 8,064 KB |
最終ジャッジ日時 | 2024-07-04 19:10:38 |
合計ジャッジ時間 | 3,094 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 39 |
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:2:43: 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." | 2 | main = getLine >>= print . solve . read . head . words | ^^^^ Main.hs:6:1: warning: [GHC-94817] [-Wtabs] Tab character found here, and in 7 further locations. Suggested fix: Please use spaces instead. | 6 | where | ^^^^^^^^ [2 of 2] Linking a.out
ソースコード
main = getLine >>= print . solve . read . head . words solve :: Int -> Int solve n = div n $ foldl (\acc x -> if acc == n && mod n x == 0 then x else acc) n primes where primes = primes' [2..n] (sqrt $ fromIntegral n) primes' [] _ = [] primes' (x : xs) mb | fromIntegral x < mb = x : primes' [y | y <- xs, mod y x /= 0] mb | otherwise = x : xs