結果
問題 | No.117 組み合わせの数 |
ユーザー | Haar |
提出日時 | 2016-03-09 15:08:55 |
言語 | Haskell (9.8.2) |
結果 |
RE
|
実行時間 | - |
コード長 | 327 bytes |
コンパイル時間 | 2,169 ms |
コンパイル使用メモリ | 171,904 KB |
実行使用メモリ | 6,812 KB |
最終ジャッジ日時 | 2024-09-24 16:44:58 |
合計ジャッジ時間 | 2,834 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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:12:42: 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." | 12 | getContents>>=mapM_ print.map(\s->(f(head s)((read::String->(Int,Int))(tail s)))`mod`1000000007).lines | ^^^^ Main.hs:12:76: 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." | 12 | getContents>>=mapM_ print.map(\s->(f(head s)((read::String->(Int,Int))(tail s)))`mod`1000000007).lines | ^^^^ [2 of 2] Linking a.out
ソースコード
p (_,0) = 1 p (n,k) | n<k = 0 | True = product[n-k+1..n] c (n,k) = p (n,k) `div` product[1..k] h (n,k) = c ((n+k-1),k) f ch = case ch of 'C' -> c 'P' -> p 'H' -> h main=do getLine getContents>>=mapM_ print.map(\s->(f(head s)((read::String->(Int,Int))(tail s)))`mod`1000000007).lines