{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.yokoyan.net%2Fentry%2F2018%2F04%2F18%2F131500\" title=\"\u3010Ruby\u3011\u591a\u91cd\u914d\u5217\u306e\u4e2d\u8eab\u30921\u884c\u305a\u3064\u6539\u884c\u3057\u3066\u8868\u793a\u3057\u305f\u3044 - \u7d19\u4e00\u91cd\u306e\u7a4d\u307f\u91cd\u306d\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u306f\u3058\u3081\u306b AtCoder\u306e\u554f\u984c\u3092\u3044\u308d\u3044\u308d\u3084\u3063\u3066\u3044\u308b\u4e2d\u3067\u3001\u591a\u91cd\u914d\u5217\u306b\u3064\u3044\u3066\u8ff7\u3063\u305f\u306e\u3067\u30e1\u30e2\u3002 \u3084\u308a\u305f\u3044\u3053\u3068 \u591a\u91cd\u914d\u5217\u306e\u4e2d\u8eab\u30921\u884c\u305a\u3064\u6539\u884c\u3057\u3066\u8868\u793a\u3057\u305f\u3044\u3002 \u5b9f\u73fe\u65b9\u6cd5 join\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3002 docs.ruby-lang.org \u5b9f\u88c5\u4f8b $ irb 2.4.0 :001 > H,W=3,4 => [3, 4] 2.4.0 :002 > out = Array.new(H).map{ Array.new(W,\".\")} => [[\".\", \".\", \".\", \".\"], [\".\", \".\", \".\", \".\"], [\".\", \".\", \".\", \".\"]] 2.4.0 :003 > out.each \u2026","author_name":"yokoyantech","version":"1.0","type":"rich","image_url":"https://cdn.blog.st-hatena.com/images/theme/og-image-1500.png","blog_url":"https://www.yokoyan.net/","title":"\u3010Ruby\u3011\u591a\u91cd\u914d\u5217\u306e\u4e2d\u8eab\u30921\u884c\u305a\u3064\u6539\u884c\u3057\u3066\u8868\u793a\u3057\u305f\u3044","blog_title":"\u7d19\u4e00\u91cd\u306e\u7a4d\u307f\u91cd\u306d","provider_url":"https://hatena.blog","url":"https://www.yokoyan.net/entry/2018/04/18/131500","width":"100%","published":"2018-04-18 13:15:00","author_url":"https://blog.hatena.ne.jp/yokoyantech/","height":"190","provider_name":"Hatena Blog","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0","ruby"]}