{"height":"190","author_url":"https://blog.hatena.ne.jp/mm2911/","image_url":null,"provider_url":"https://hatena.blog","description":"\u306f\u3058\u3081\u306b Big O\u8a18\u6cd5\u3068\u306f\u4f55\u304b \u4ee3\u8868\u7684\u306aBig O\u30d1\u30bf\u30fc\u30f3 \u306a\u305c List.FirstN + List.Sum \u306f O(N\u00b2) \u306b\u306a\u308b\u306e\u304b \u30c7\u30fc\u30bf\u91cf\u306b\u3088\u308b\u5897\u52a0\u30a4\u30e1\u30fc\u30b8 O(N\u00b2)\u306f\u300c\u5e38\u306b\u60aa\u3044\u51e6\u7406\u300d\u3067\u306f\u306a\u3044 \u300cPower Query\u306fO(N\u00b2)\u3060\u304b\u3089\u9045\u3044\u300d\u3068\u3044\u3046\u4e00\u822c\u5316\u306b\u6ce8\u610f Power Query\u3067O(N)\u306b\u8fd1\u3065\u3051\u308b\u6539\u5584\u30a2\u30d7\u30ed\u30fc\u30c1 \u63a8\u5968\u30d1\u30bf\u30fc\u30f3\uff1aList.Accumulate \u524d\u63d0\uff1a\u30bd\u30fc\u30c8\u9806\u5e8f \u6539\u5584\u5f8c\u306e\u51e6\u7406\u6642\u9593\u306b\u3064\u3044\u3066 \u5b9f\u6e2c\u6642\u306e\u78ba\u8a8d\u65b9\u6cd5 \u307e\u3068\u3081 \u306f\u3058\u3081\u306b Power Query\uff08M\u8a00\u8a9e\uff09\u3067\u7d2f\u8a08\u5217\u3092\u4f5c\u308b\u3068\u304d\u3001List.FirstN \u3067\u5148\u982d\u304b\u3089\u73fe\u5728\u884c\u307e\u3067\u3092\u5207\u308a\u51fa\u3057\u3001List.Sum \u3067\u5408\u8a08\u3059\u308b\u2014\u2014\u2026","author_name":"mm2911","url":"https://mm2911.hatenablog.com/entry/2026/09/19/013153","categories":[],"blog_title":"\u3044\u308d\u3044\u308d\u30e1\u30e2","title":"\u3010Power Query\u3011List.FirstN+List.Sum\u306e\u7d2f\u8a08\u51e6\u7406\u304cO(N\u00b2)\u3067\u91cd\u304f\u306a\u308b\u7406\u7531\u3092Big O\u8a18\u6cd5\u304b\u3089\u89e3\u8aac","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmm2911.hatenablog.com%2Fentry%2F2026%2F09%2F19%2F013153\" title=\"\u3010Power Query\u3011List.FirstN+List.Sum\u306e\u7d2f\u8a08\u51e6\u7406\u304cO(N\u00b2)\u3067\u91cd\u304f\u306a\u308b\u7406\u7531\u3092Big O\u8a18\u6cd5\u304b\u3089\u89e3\u8aac - \u3044\u308d\u3044\u308d\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://mm2911.hatenablog.com/","published":"2026-09-19 01:31:53","type":"rich","provider_name":"Hatena Blog","width":"100%","version":"1.0"}