{"description":"\u554f\u984c \u4e8c\u4eba\u304c\u4ea4\u4e92\u306b\u6b21\u306e\u64cd\u4f5c\u3092\u884c\u3046\u3088\u3046\u306a\u30b2\u30fc\u30e0\u304c\u3042\u308b\u3002 \u306f\u3058\u3081\u306fN\u500b\u306e\u77f3\u306e\u5c71\u304c\u4e00\u3064\u3042\u308b\u3002 \u624b\u756a\u306e\u30d7\u30ec\u30a4\u30e4\u30fc\u306f\u3001\u4e00\u3064\u306e\u5c71\u3092\u9078\u3073\u3001\u305d\u308c\u3092k\u500b\u306e\u5c71\u306b\u5206\u88c2\u3055\u305b\u308b\u3002 k\u500b\u306e\u5c71\u306fa1-a2=a2-a3=...=ak-1-ak=1\u3092\u6e80\u305f\u3059\u5fc5\u8981\u304c\u3042\u308b\u3002 \u5c71\u3092\u5206\u88c2\u3055\u305b\u3089\u308c\u306a\u304f\u306a\u3063\u305f\u30d7\u30ec\u30a4\u30e4\u30fc\u306e\u8ca0\u3051\u3002 \u304a\u4e92\u3044\u306b\u6700\u5584\u3092\u5c3d\u304f\u3057\u305f\u5834\u5408\u3069\u3061\u3089\u304c\u52dd\u3064\u304b\u3092\u6c42\u3081\u3001 \u5148\u624b\u304c\u52dd\u3064\u306a\u3089\u3001\u5148\u624b\u306e\u6700\u521d\u306e\u624b\u756a\u3067\u3044\u304f\u3064\u306e\u5c71\u306b\u5206\u88c2\u3055\u305b\u308b\u304b\u3001\u6700\u5c0f\u306e\u5c71\u306e\u6570\u3092\u51fa\u529b\u3057\u3001 \u5f8c\u624b\u304c\u52dd\u3064\u306a\u3089-1\u3092\u51fa\u529b\u305b\u3088\u3002 \u5236\u7d04\u6761\u4ef6 N\u226610^5","author_name":"simezi_tan","categories":["Codeforces","\u30b2\u30fc\u30e0","\u52d5\u7684\u8a08\u753b\u6cd5"],"provider_name":"Hatena Blog","image_url":null,"title":"87 C Interesting Game","provider_url":"https://hatena.blog","blog_title":"simezi_tan\u306e\u65e5\u8a18","blog_url":"https://simezi-tan.hatenadiary.org/","url":"https://simezi-tan.hatenadiary.org/entry/20111010/1318178841","type":"rich","height":"190","version":"1.0","author_url":"https://blog.hatena.ne.jp/simezi_tan/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsimezi-tan.hatenadiary.org%2Fentry%2F20111010%2F1318178841\" title=\"87 C Interesting Game - simezi_tan\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>","width":"100%","published":"2011-10-10 01:47:21"}