{"url":"https://tnakamura.hatenablog.com/entry/2026/09/12/a15","provider_url":"https://hatena.blog","image_url":null,"blog_url":"https://tnakamura.hatenablog.com/","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/griefworker/","description":"atcoder.jp \u30bd\u30fc\u30c8\u3057\u3066\u91cd\u8907\u3092\u6392\u9664\u3057\u305f\u3068\u304d\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9+1\u3092\u6c42\u3081\u308c\u3070\u3044\u3044\u3002C# \u306a\u3089 LINQ \u4f7f\u3048\u308b\u306e\u3067\u77ed\u304f\u66f8\u3051\u308b\u3002 var N = int.Parse(Console.ReadLine()!); var A = Console.ReadLine()! .Split(' ', StringSplitOptions.RemoveEmptyEntries) .Select(int.Parse) .ToArray(); var T = A.Order() .Distinct() .Select((a, i) => new KeyValuePair<long, int>(a, i + 1)\u2026","height":"190","version":"1.0","type":"rich","published":"2026-09-12 18:47:42","categories":[".NET","C#","\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"width":"100%","blog_title":"present","author_name":"griefworker","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftnakamura.hatenablog.com%2Fentry%2F2026%2F09%2F12%2Fa15\" title=\"A15 - Compression - present\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"A15 - Compression"}