{"id":1052,"date":"2014-10-24T21:04:11","date_gmt":"2014-10-24T13:04:11","guid":{"rendered":"http:\/\/www.shuizilong.com\/house\/?p=1052"},"modified":"2014-11-07T23:38:28","modified_gmt":"2014-11-07T15:38:28","slug":"poj-2154-color","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/house\/archives\/poj-2154-color\/","title":{"rendered":"POJ 2154. Color"},"content":{"rendered":"

<\/p>\n

http:\/\/acm.hust.edu.cn\/vjudge\/problem\/viewProblem.action?id=11116<\/a><\/p>\n

Polya \u8ba1\u6570\u3002
\n\uff08\u7f6e\u6362 $$\\rho_i$$ \u7684\u5faa\u73af\u6570\u4e3a gcd(i, n)\uff09
\n\uff08gcd(i, n) == d \u7684\u7f6e\u6362\u3002\u3002\u6709 phi(n\/d) \u79cd\u3002\u3002\uff09<\/p>\n

http:\/\/acm.hust.edu.cn\/vjudge\/problem\/viewSource.action?id=2884620<\/a><\/p>\n

— UPD —<\/p>\n

\u9605\u8bfb\u4e86 \u3002\u3002\u3002\u9664\u6570\u51fd\u6570\u7684\u6e10\u8fd1\u4e0a\u754c\uff1f
\nhttp:\/\/vfleaking.blog.163.com\/blog\/static\/174807634201341913040467\/<\/a>
\nhttp:\/\/vfleaking.blog.163.com\/blog\/static\/174807634201341913040467\/<\/a><\/p>\n

\u3002\u3002\u3002\u8fd9\u73a9\u610f\u8fd8\u662f\u6709\u70b9\u590d\u6742\u7684\u3002\u3002\u3002\u67d3\u6307\u4e0d\u80fd\u3002\u3002
\n\u59d1\u4e14\u8ba9\u6211\u8ba4\u4e3a\u5979\u662f $$O(logn)$$ \u7684\u5427\u3001\u3001\u3001\u3001<\/p>\n

\u603b\u4e4b\u7ecf\u5e38\u6709 sqrt(n) \u679a\u4e3e\u4f1a TLE\u3002\u3002\u3002
\ndfs \u751f\u6210\u7ea6\u6570\u624d\u884c\u7684\u60c5\u51b5\u3002\u3002
\n\u5229\u7528 \u7b5b\u6cd5 \u7684 \u6700\u5c0f\u7d20\u56e0\u5b50\u3002\u3002\u3002\u53ef\u4ee5\u4e00\u8fb9\u5206\u89e3\u56e0\u6570\u4e00\u8fb9 dfs\u3002\u3002\u3002\u8fd9\u6837\u590d\u6742\u5ea6\u4e25\u683c\u662f\u7ea6\u6570\u4e2a\u6570\u7684\u3002\u3002\u3002\u3002
\nhttp:\/\/acm.hust.edu.cn\/vjudge\/problem\/viewSource.action?id=2886358<\/a><\/p>\n

\u4e0d\u8fc7 n \u518d\u5927\u4e00\u4e9b\u8fd9\u79cd\u65b9\u6cd5\u5c31\u4e0d\u592a\u884c\u4e86\u3002\u3002\u3002
\nhttp:\/\/acm.hust.edu.cn\/vjudge\/problem\/viewSource.action?id=2897593<\/a>
\n\u8fd8\u662f\u8001\u5b9e\u5206\u89e3\u56e0\u6570\u5427 0w0\u3002\u3002\u3002
\nhttp:\/\/acm.hust.edu.cn\/vjudge\/problem\/viewSource.action?id=2897605<\/a><\/p>\n

\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014
\nhttp:\/\/tieba.baidu.com\/p\/1890586196<\/a>
\n\u4f46\u662f\u8d28\u56e0\u6570\u5206\u89e3\u7684\u590d\u6742\u5ea6\u5c31\u5df2\u7ecf\u662f sqrt(n) \u4e86\uff1f\uff1f\uff1f
\n\u3001\u3001\u3001\u628a\u7d20\u6570\u7b5b\u51fa\u6765\u4ee5\u540e\u7684\u8d28\u56e0\u6570\u5206\u89e3\u590d\u6742\u5ea6\u662f\u591a\u5c11\uff1f\u4f3c\u4e4e\u548c\u7d20\u6570\u5bc6\u5ea6\u6709\u5173\u3002\u3002\u3002
\nhttp:\/\/zh.wikipedia.org\/wiki\/%E8%B3%AA%E6%95%B8%E5%AE%9A%E7%90%86<\/a>
\n\u3002\u3002\u3002\u3002\u3002\u3002\u3002\u3002\u3002\u3001\u3001\u3001<\/p>\n

— UPD —
\nhttp:\/\/acm.hust.edu.cn\/vjudge\/problem\/viewSource.action?id=2949797<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[1],"tags":[139],"class_list":["post-1052","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-polya-"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2tdP7-gY","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/1052","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/comments?post=1052"}],"version-history":[{"count":1,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/1052\/revisions"}],"predecessor-version":[{"id":1053,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/1052\/revisions\/1053"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/media?parent=1052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/categories?post=1052"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/tags?post=1052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}