{"provider_url":"https://hatena.blog","width":"100%","version":"1.0","blog_url":"https://bouzuya.hatenablog.com/","title":"\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u6570\u5b66 \u6f14\u7fd2\u554f\u984c\u96c6 079, 080 \u3092\u89e3\u3044\u305f","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbouzuya.hatenablog.com%2Fentry%2F2022%2F03%2F11%2F230749\" title=\"\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u6570\u5b66 \u6f14\u7fd2\u554f\u984c\u96c6 079, 080 \u3092\u89e3\u3044\u305f - bouzuya.hatenablog.com\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"bouzuya.hatenablog.com","url":"https://bouzuya.hatenablog.com/entry/2022/03/11/230749","image_url":null,"type":"rich","description":"\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u6570\u5b66 \u6f14\u7fd2\u554f\u984c\u96c6 079 - ModSum \u3092\u89e3\u3044\u305f\u3002 \u554f\u984c: https://atcoder.jp/contests/math-and-algorithm/tasks/abc139_d ABC139 D \u3068\u540c\u3058\u554f\u984c\u3002 x mod P_i \u306e\u6700\u5927\u5024\u306f P_i - 1 \u306a\u306e\u3067 x \u3092\u81ea\u7531\u306b\u9078\u3079\u308b\u306e\u3067\u3042\u308c\u3070 \\sum_{i=1}^{N} P_i-1 \u306b\u3067\u304d\u308b\u3002\u8a66\u3057\u306b x \u304c P_i - 1 \u306b\u306a\u308b\u3088\u3046 1 \u3064\u305a\u3064\u305a\u3089\u3057\u3066\u914d\u7f6e\u3057\u3066\u307f\u308b\u3068 N > 1 \u306e\u5165\u529b\u5024\u306a\u3089\u5b9f\u73fe\u3067\u304d\u308b\u3053\u3068\u306b\u6c17\u3065\u304f\u3002 N = 1 \u306e\u3068\u304d\u306f\u305a\u3089\u305b\u306a\u3044\u306e\u3067 0 \u306b\u306a\u308b (\u3053\u306e\u3068\u304d\u3082\u5f0f\u3068\u3057\u3066\u306f\u540c\u3058\u3067\u826f\u3044) \u3002 N = 1 \u2026","author_name":"bouzuya","author_url":"https://blog.hatena.ne.jp/bouzuya/","provider_name":"Hatena Blog","height":"190","categories":[],"published":"2022-03-11 23:07:49"}