{"provider_url":"https://hatena.blog","author_name":"Ktya","version":"1.0","url":"https://ktya.hatenadiary.jp/entry/2020/04/30/210249","type":"rich","published":"2020-04-30 21:02:49","blog_title":"Ktya\u2019s blog","provider_name":"Hatena Blog","title":"SLP 2017 C\u3046\u3081","author_url":"https://blog.hatena.ne.jp/Ktya/","image_url":null,"categories":["SLP","SLP_2017"],"height":"190","blog_url":"https://ktya.hatenadiary.jp/","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fktya.hatenadiary.jp%2Fentry%2F2020%2F04%2F30%2F210249\" title=\"SLP 2017 C\u3046\u3081 - Ktya\u2019s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u554f\u984c: https://www.imo-official.org/problems/IMO2017SL.pdf SLP 2017 C1 \u6982\u8981 \u4e8c\u3064\u306e\u8fba\u306e\u9577\u3055\u304c\u5947\u6570\u3067\u3042\u308b\u9577\u65b9\u5f62R\u3092\u3001\u5404\u8fba\u306e\u9577\u3055\u304c\u6574\u6570\u3068\u306a\u308b\u9577\u65b9\u5f62\u306b\u5206\u5272\u3059\u308b\uff08\u5206\u5272\u5f8c\u306e\u9577\u65b9\u5f62\u306e\u8fba\u306fR\u306e\u3069\u308c\u304b\u306e\u8fba\u3068\u5e73\u884c\u306b\u306a\u308b\u3053\u3068\u3092\u4f7f\u3063\u3066\u3088\u3044\uff09\u3002 \u3053\u306e\u6642\u3001\u5206\u5272\u5f8c\u306e\u9577\u65b9\u5f62\u306e\u4e2d\u3067\u3001R\u306e\u5404\u8fba\u3068\u306e\u8ddd\u96e2\u304c\u3059\u3079\u3066\u5947\u6570\u3082\u3057\u304f\u306f\u3059\u3079\u3066\u5076\u6570\u306b\u306a\u308b\u3082\u306e\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u3092\u793a\u305b\u3002 \u8a3c\u660e \u9577\u65b9\u5f62\u3092A*B\u306e\u30b0\u30ea\u30c3\u30c9\u3060\u3068\u601d\u3044\u3001\u5404\u30de\u30b9\u3092\u9577\u65b9\u5f62R\u306e\u4e00\u756a\u5de6\u4e0a\u304c\u9ed2\u3068\u306a\u308b\u3088\u3046\u306b\u5e02\u677e\u6a21\u69d8\u306b\u5857\u308b\u3002\u4ee3\u4f4d\u306e\u9577\u65b9\u5f62\u306e\u5207\u65ad\u306f\u3001 R\u3092\u5206\u5272\u3057\u305f\u5f8c\u306e\u9577\u65b9\u5f62\u306e\u3046\u3061\u3001\u56db\u3059\u307f\u306e\u8272\u306e\u69cb\u6210\u306b\u3064\u3044\u3066\u8003\u3048\u308b\u3068\u3001(\u9ed2,\u767d)=(4\u2026"}