{"url":"https://blog.ngtkana.com/entry/2020/01/10/225921","blog_title":"\u30d6\u30ed\u30b0\u540d","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.ngtkana.com%2Fentry%2F2020%2F01%2F10%2F225921\" title=\"ABC 150 \u89e3\u6cd5 - \u30d6\u30ed\u30b0\u540d\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/ngtkana/","provider_name":"Hatena Blog","published":"2020-01-10 22:59:21","description":"\u30b3\u30f3\u30c6\u30b9\u30c8\u30da\u30fc\u30b8 AtCoder Beginner Contest 150 - AtCoder \u89e3\u6cd5 A - 500 Yen Coins k * 500 \u2267 x \u304b\u3069\u3046\u304b\u3067\u5206\u5c90\u3067\u3059\u3002 B - Count ABC C++ \u306e std::string \u306b\u306f\u3001substr \u3068\u3044\u3046\u30e1\u30f3\u30d0\u95a2\u6570\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u7d42\u7aef\u3092\u884c\u304d\u904e\u304e\u3066\u3082\u77ed\u3044 substring \u3092\u8fd4\u3057\u3066\u304f\u308c\u307e\u3059\u3002substr(i, 4) for all i in [0, n[ \u3067\u5168\u63a2\u7d22\u3067\u3059\u3002 C - Count Order C++ \u306b\u306f std::next_permutation \u3068\u3044\u3046\u4fbf\u5229\u306a\u95a2\u6570\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3067\u3059\u3079\u3066\u306e\u5217\u3092\u4f5c\u3063\u3066\u3001a, b \u2026","categories":[],"author_name":"ngtkana","version":"1.0","blog_url":"https://blog.ngtkana.com/","height":"190","provider_url":"https://hatena.blog","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/n/ngtkana/20200110/20200110225736.png","title":"ABC 150 \u89e3\u6cd5","type":"rich","width":"100%"}