関数型ï¼ä¾µç•¥ãƒŽã‚¹ã‚¹ãƒ¡â˜† - 純粋関数型雑記帳（ã“ã®è¨˜äº‹ã¯ Functional Ikamusume Advent Calendar jp 2010 ã®ç‚ºã«æ›¸ã‹ã‚Œã¾ã—ãŸï¼‰ 侵略ï¼ä¾µç•¥ï¼ä¾µç•¥ï¼ä¾µç•¥ï¼ä¾µç•¥ï¼ä¾µç•¥ï¼ã‚¤ã‚«å¨˜ï¼ å†å¸°ã—ãªã‚¤ã‚«ï¼Ÿ main = putStrLn $ f 6 where f 0 = "イカ娘ï¼" f n = "侵略ï¼" ++ f (n-1) å¤é¢¨ã«å†å¸°ã—ãªã‚¤ã‚«ï¼Ÿ main = putStrLn $ f 6 where f 0 = "イカ娘ï¼" f (n+1) = "侵略ï¼" ++ f n 左派ã˜ã‚ƒãªã‚¤ã‚«ï¼Ÿ main = putStrLn $ foldl (\a _ -> "侵略ï¼"++a) "イカ娘ï¼" [1..6] å³æ´¾ã˜ã‚ƒãªã‚¤ã‚«ï¼Ÿ main = putStrLn $ foldr (\_ a -> "侵略ï¼"++a) "イカ娘ï¼" [1..6] å³æ´¾ã«è¦‹ã›ã‹ã‘ãŸå·¦æ´¾ã˜ã‚ƒãªã„ã‹ï¼Ÿ main = putStrLn $
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