{"width":"100%","url":"https://hnw.hatenablog.com/entry/20140503","image_url":null,"categories":[],"author_url":"https://blog.hatena.ne.jp/hnw/","provider_url":"https://hatena.blog","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhnw.hatenablog.com%2Fentry%2F20140503\" title=\"\u5e73\u65b9\u6570\u304b\u3069\u3046\u304b\u3092\u9ad8\u901f\u306b\u5224\u5b9a\u3059\u308b\u65b9\u6cd5 - hnw\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"hnw\u306e\u65e5\u8a18","provider_name":"Hatena Blog","description":"\u5e73\u65b9\u6570\u3068\u306f\u3001\u3042\u308b\u6574\u6570\u306e\u5e73\u65b9\uff08\uff1d\u4e8c\u4e57\uff09\u3067\u3042\u308b\u3088\u3046\u306a\u6574\u6570\u306e\u3053\u3068\u3092\u8a00\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u30010,1,4,9,16,...\u304c\u5e73\u65b9\u6570\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002 \u3068\u3053\u308d\u3067\u3001\u4e0e\u3048\u3089\u308c\u305f\u6574\u6570\u304c\u5e73\u65b9\u6570\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u826f\u3044\u3067\u3057\u3087\u3046\u304b\u3002\u4e0e\u3048\u3089\u308c\u305f\u6574\u6570\u306e\u5e73\u65b9\u6839\u306e\u5c0f\u6570\u70b9\u4ee5\u4e0b\u3092\u5207\u308a\u6368\u3066\u3001\u305d\u308c\u3092\u4e8c\u4e57\u3057\u3066\u5143\u306e\u6570\u306b\u306a\u308b\u304b\u3069\u3046\u304b\u3001\u3068\u3044\u3046\u306e\u304c\u3059\u3050\u601d\u3044\u3064\u304f\u5b9f\u88c5\u3067\u3059\u3002 <?php function is_square($n) { $sqrt = floor(sqrt($n)); return ($sqrt*$sqrt == $n); } \u3057\u304b\u3057\u3001\u5e73\u65b9\u6839\u306e\u8a08\u7b97\u306f\u6bd4\u8f03\u7684\u91cd\u3044\u51e6\u7406\u3067\u3059\u3002\u3082\u3063\u3068\u9ad8\u901f\u5316\u3059\u308b\u65b9\u6cd5\u306f\u7121\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002 \u591a\u500d\u9577\u6574\u6570\u2026","title":"\u5e73\u65b9\u6570\u304b\u3069\u3046\u304b\u3092\u9ad8\u901f\u306b\u5224\u5b9a\u3059\u308b\u65b9\u6cd5","published":"2014-05-03 00:00:00","blog_url":"https://hnw.hatenablog.com/","height":"190","version":"1.0","author_name":"hnw"}