{"version":"1.0","author_url":"https://blog.hatena.ne.jp/griefworker/","image_url":null,"published":"2020-09-15 08:00:00","url":"https://tnakamura.hatenablog.com/entry/2020/09/15/arc004a","provider_url":"https://hatena.blog","blog_title":"present","width":"100%","categories":["\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0","C#"],"type":"rich","blog_url":"https://tnakamura.hatenablog.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftnakamura.hatenablog.com%2Fentry%2F2020%2F09%2F15%2Farc004a\" title=\"ARC004A - 2\u70b9\u9593\u8ddd\u96e2\u306e\u6700\u5927\u5024 - 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":"ARC004A - 2\u70b9\u9593\u8ddd\u96e2\u306e\u6700\u5927\u5024","height":"190","author_name":"griefworker","provider_name":"Hatena Blog","description":"atcoder.jp \u5358\u7d14\u306b\u5168\u63a2\u7d22\u3059\u308c\u3070\u826f\u3044\u3002\u5ea7\u6a19\u306e\u683c\u7d0d\u306b\u306f System.Numerics.Vector2 \u3092\u4f7f\u3063\u305f\u30022\u70b9\u9593\u8ddd\u96e2\u306e\u8a08\u7b97\u304c Vector2.Distance \u4e00\u767a\u3067\u6e08\u3093\u3067\u697d\u3002 using System; using System.Numerics; namespace ARC004A { class Program { static void Main(string[] args) { var n = int.Parse(Console.ReadLine()); var v = new Vector2[n]; for (var i = 0; i < n; i++) { var \u2026"}