yoshiyoshifujii https://blog.hatena.ne.jp/yoshiyoshifujii/ 毎日Learning https://yoshiyoshifujii.hatenablog.com/ Python L-99 def main(): print pack("a") == None print pack([]) == [] print pack(["a"]) == [["a"]] print pack(["a", "b"]) == [["a"], ["b"]] print pack(["a", "a", "b"]) == [["a", "a"], ["b"]] print pack(["a", "a", "b", "b"]) == [["a","a"], ["b", "b"]] print pack(["a", "a", "b", "b", "a"]) == [["a", "a"], ["b", "b… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyoshiyoshifujii.hatenablog.com%2Fentry%2F20100724%2Fp2" title="P09 (**) リストの重複する要素をそれぞれ子リストとしてまとめる。 - 毎日Learning" 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 2010-07-24 00:00:01 rich https://yoshiyoshifujii.hatenablog.com/entry/20100724/p2 1.0 100%