tanakh https://blog.hatena.ne.jp/tanakh/ 純粋関数型雑記帳 https://tanakh.hatenablog.com/ Haskell （この記事は Functional Ikamusume Advent Calendar jp 2010 の為に書かれました）侵略！侵略！侵略！侵略！侵略！侵略！イカ娘！ 再帰しなイカ？ main = putStrLn $ f 6 where f 0 = "イカ娘！" f n = "侵略！" ++ f (n-1) 古風に再帰しなイカ？ main = putStrLn $ f 6 where f 0 = "イカ娘！" f (n+1) = "侵略！" ++ f n 左派じゃなイカ？ main = putStrLn $ foldl (\a _ -> "侵略！"++a) "イカ娘！" [1..6] 右派… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftanakh.hatenablog.com%2Fentry%2F20101206%2Fp1" title="関数型！侵略ノススメ☆ - 純粋関数型雑記帳" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2010-12-06 00:00:00 rich https://tanakh.hatenablog.com/entry/20101206/p1 1.0 100%