{"published":"2009-09-09 11:17:50","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Faomori-ringo2.hatenadiary.org%2Fentry%2F20090909%2F1252462670\" title=\" Project Euler 19 - math, programming, and little something to laugh\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","provider_name":"Hatena Blog","url":"https://aomori-ringo2.hatenadiary.org/entry/20090909/1252462670","provider_url":"https://hatena.blog","blog_title":"math, programming, and little something to laugh","image_url":null,"width":"100%","author_url":"https://blog.hatena.ne.jp/aomori-ringo2/","height":"190","blog_url":"https://aomori-ringo2.hatenadiary.org/","author_name":"aomori-ringo2","title":" Project Euler 19","categories":["Mathematica","C/C++"],"type":"rich","description":"\u6b21\u306e\u60c5\u5831\u304c\u4e0e\u3048\u3089\u308c\u3066\u3044\u308b\u3002 \u30fb1900\u5e741\u67081\u65e5\u306f\u6708\u66dc\u65e5\u3067\u3042\u308b\u3002 \u30fb9\u6708\u30014\u6708\u30016\u6708\u300111\u6708\u306f30\u65e5\u307e\u3067\u3042\u308a\u30012\u6708\u3092\u9664\u304f\u4ed6\u306e\u6708\u306f31\u65e5\u307e\u3067\u3042\u308b\u3002 \u30fb2\u6708\u306f28\u65e5\u307e\u3067\u3042\u308b\u304c\u3001\u3046\u308b\u3046\u5e74\u306e\u3068\u304d\u306f29\u65e5\u3067\u3042\u308b\u3002 \u30fb\u3046\u308b\u3046\u5e74\u306f\u897f\u66a6\u304c4\u3067\u5272\u308a\u5207\u308c\u308b\u5e74\u306b\u8d77\u3053\u308b\u3002\u3057\u304b\u3057\u3001\u897f\u66a6\u304c400\u3067\u5272\u308a\u5207\u308c\u305a100\u3067\u5272\u308a\u5207\u308c\u308b\u5e74\u306f\u3046\u308b\u3046\u5e74\u3067\u306a\u3044\u3002 20\u4e16\u7d00\uff081901\u5e741\u67081\u65e5\u304b\u30892000\u5e7412\u670831\u65e5\uff09\u3067\u6708\u306e\u521d\u3081\u306e\u65e5\u66dc\u65e5\u306e\u6570\u3092\u6570\u3048\u3088\u3002 Mathematica Needs[\"Calendar`\"] Count[ Flatten[ Table[ Table[ DayOfWeek[{i, j, 1}], {j, 1, 12} ]\u2026"}