{"blog_title":"\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","description":"https://atcoder.jp/contests/abc206/tasks/abc206_b \u89e3\u8aac https://atcoder.jp/contests/abc206/submissions/23625300 \u3053\u306e\u554f\u984c\u306f\u5b9f\u306f1\u65e5\u76ee\u304b\u3089\u9806\u756a\u306b\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3059\u308c\u3070\u9593\u306b\u5408\u3046\u3002 200\u70b9\u554f\u984c\u3067\u306f\u3042\u308b\u304c\u3001\u3061\u3087\u3063\u3068\u8a08\u7b97\u91cf\u306b\u3064\u3044\u3066\u8003\u3048\u59cb\u3081\u308b\u3068\u5fc3\u914d\u306b\u306a\u3063\u305f\u308a\u3059\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002 \u306a\u305c\u9593\u306b\u5408\u3046\uff1f 1+2+3+...+n\u3068\u3044\u3046\u7b49\u5dee\u6570\u5217\u306e\u7dcf\u548c\u306f\u3001\u516c\u5f0f\u3092\u9069\u7528\u3059\u308b\u3068n(n+1)/2\u3067\u3042\u308b\u3002 N\u306e\u6700\u5927\u5024\u306f109\u3067\u3042\u308b\u304c\u3001n=105\u3092\u5165\u308c\u3066\u307f\u308b\u3068\u65e2\u306b\u6700\u5927\u5024\u3092\u8d85\u3048\u3066\u3057\u307e\u3046\u3002 \u3061\u3087\u3063\u3068\u3060\u3051\u8a73\u3057\u304f\u66f8\u304f\u3068\u7dcf\u548c\u3092N\u4ee5\u4e0a\u306b\u3059\u308b\u305f\u3081\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.hamayanhamayan.com%2Fentry%2F2021%2F06%2F19%2F233612\" title=\"Savings [AtCoder Beginner Contest 206\uff08Sponsored by Panasonic\uff09 B] - \u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2021-06-19 23:36:12","author_name":"hamayanhamayan","author_url":"https://blog.hatena.ne.jp/hamayanhamayan/","type":"rich","image_url":null,"height":"190","version":"1.0","blog_url":"https://blog.hamayanhamayan.com/","url":"https://blog.hamayanhamayan.com/entry/2021/06/19/233612","width":"100%","title":"Savings [AtCoder Beginner Contest 206\uff08Sponsored by Panasonic\uff09 B]","categories":["\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"]}