{"id":2241,"date":"2023-01-22T22:53:35","date_gmt":"2023-01-22T14:53:35","guid":{"rendered":"https:\/\/www.shuizilong.com\/house\/?p=2241"},"modified":"2023-01-25T07:44:55","modified_gmt":"2023-01-24T23:44:55","slug":"atcoder-regular-contest-154","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/house\/archives\/atcoder-regular-contest-154\/","title":{"rendered":"AtCoder Regular Contest 154"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a051cc64e25f\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a051cc64e25f\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.shuizilong.com\/house\/archives\/atcoder-regular-contest-154\/#A\" title=\"A\">A<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.shuizilong.com\/house\/archives\/atcoder-regular-contest-154\/#B\" title=\"B\">B<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.shuizilong.com\/house\/archives\/atcoder-regular-contest-154\/#C\" title=\"C\">C<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.shuizilong.com\/house\/archives\/atcoder-regular-contest-154\/#Problem_D_A_B_%3E_C\" title=\"Problem D. A + B &gt; C ?\">Problem D. A + B > C ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.shuizilong.com\/house\/archives\/atcoder-regular-contest-154\/#E\" title=\"E\">E<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.shuizilong.com\/house\/archives\/atcoder-regular-contest-154\/#F\" title=\"F\">F<\/a><\/li><\/ul><\/nav><\/div>\n\n<ul>\n<li><a href=\"https:\/\/atcoder.jp\/contests\/arc154\/tasks\">https:\/\/atcoder.jp\/contests\/arc154\/tasks<\/a><\/li>\n<\/ul>\n<h1><span class=\"ez-toc-section\" id=\"A\"><\/span>A<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h1><span class=\"ez-toc-section\" id=\"B\"><\/span>B<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\u7ed9\u5b9a\u4e24\u4e2a\u5b57\u7b26\u4e32 s\u3001t\uff0c\u6bcf\u6b21\u4f60\u53ef\u4ee5\u5220\u9664 s[0]\uff0c\u5e76\u5c06\u5176\u63d2\u5165\u5230 s \u7684\u4efb\u610f\u4f4d\u7f6e\u3002<br \/>\n\u95ee\u81f3\u5c11\u591a\u5c11\u6b21\u64cd\u4f5c\uff0c\u53ef\u4ee5\u8ba9 s = t\u3002<\/p>\n<h1><span class=\"ez-toc-section\" id=\"C\"><\/span>C<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\u7ed9\u5b9a A\u3001B \u4e24\u4e2a\u6570\u7ec4\uff0c\u6bcf\u6b21\u53ef\u4ee5\u9009\u62e9 A \u6570\u7ec4\u4e2d\u7684\u4e00\u4e2a\u6570 A[i]\uff0c\u4ee4 A[i] = A[(i+1)%n]\u3002<br \/>\n\u95ee\u662f\u5426\u53ef\u4ee5\u8ba9 A = B\u3002<\/p>\n<h1><span class=\"ez-toc-section\" id=\"Problem_D_A_B_%3E_C\"><\/span>Problem D. A + B > C ?<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\u4ea4\u4e92\u95ee\u9898\uff0c\u6709\u4e00\u4e2a\u6392\u5217 P \uff0c\u4f60\u53ef\u4ee5\u8be2\u95ee\u81f3\u591a 25000 \u6b21\u5185\u8fd8\u539f\u51fa\u539f\u6392\u5217\u3002\u6bcf\u6b21\u8be2\u95ee (i,j,k) \u8fd4\u56de\u662f\u5426 Pi + Pj > Pk\u3002<br \/>\nn &lt;= 2000<\/p>\n<p>\u5148\u627e\u6700\u5c0f\u7684\uff0c\u7136\u540e\u8f6c\u5316\u6210\u6392\u5e8f\u95ee\u9898\u3002<br \/>\n\u4f7f\u7528\u5f52\u5e76\u6392\u5e8f\u786e\u4fdd\u6bd4\u8f83\u6b21\u6570\u6700\u5c11\u3002<\/p>\n<h1><span class=\"ez-toc-section\" id=\"E\"><\/span>E<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h1><span class=\"ez-toc-section\" id=\"F\"><\/span>F<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>i = 1 \u663e\u7136\u5c31\u662f\u7ecf\u5178\u7684 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Coupon_collector%27s_problem\">\u96c6\u5361\u95ee\u9898<\/a>\u3002<br \/>\n\u968f\u673a\u53d8\u91cf\u91cc\u51fa\u73b0\u5e73\u65b9\u7684\u4e4b\u524d abc \u91cc\u624d\u8003\u8fc7\u3002https:\/\/atcoder.jp\/contests\/abc277\/tasks\/abc277_g\u3002<br \/>\n\u4e4b\u524d onsite \u7684\u65f6\u5019\u4e5f\u51fa\u8fc7\u3002<br \/>\n\u8fd9\u4e2a\u4f3c\u4e4e\u66f4\u4e00\u822c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/atcoder.jp\/contests\/arc154\/tasks A B \u7ed9\u5b9a\u4e24\u4e2a\u5b57\u7b26\u4e32 s\u3001t\uff0c\u6bcf\u6b21\u4f60\u53ef\u4ee5\u5220\u9664 s[0]\uff0c\u5e76\u5c06\u5176\u63d2\u5165\u5230 s \u7684\u4efb\u610f\u4f4d\u7f6e\u3002 \u95ee\u81f3\u5c11\u591a\u5c11\u6b21\u64cd\u4f5c\uff0c\u53ef\u4ee5\u8ba9 s = t\u3002 C \u7ed9\u5b9a A\u3001B \u4e24\u4e2a\u6570\u7ec4\uff0c\u6bcf\u6b21\u53ef\u4ee5\u9009\u62e9 A \u6570\u7ec4\u4e2d\u7684\u4e00\u4e2a\u6570 A[i]\uff0c\u4ee4 A[i] = A[(i+1)%n]\u3002 \u95ee\u662f\u5426\u53ef\u4ee5\u8ba9 A = B\u3002 Problem D. A + B > C ? \u4ea4\u4e92\u95ee\u9898\uff0c\u6709\u4e00\u4e2a\u6392\u5217 P \uff0c\u4f60\u53ef\u4ee5\u8be2\u95ee\u81f3\u591a 25000 \u6b21\u5185\u8fd8\u539f\u51fa\u539f\u6392\u5217\u3002\u6bcf\u6b21\u8be2\u95ee (i,j,k) \u8fd4\u56de\u662f\u5426 Pi + Pj > Pk\u3002 n &lt;= 2000 \u5148\u627e\u6700\u5c0f\u7684\uff0c\u7136\u540e\u8f6c\u5316\u6210\u6392\u5e8f\u95ee\u9898\u3002 \u4f7f\u7528\u5f52\u5e76\u6392\u5e8f\u786e\u4fdd\u6bd4\u8f83\u6b21\u6570\u6700\u5c11\u3002 E F i = [&hellip;]<\/p>\n","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":[],"class_list":["post-2241","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2tdP7-A9","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/2241","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=2241"}],"version-history":[{"count":7,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/2241\/revisions"}],"predecessor-version":[{"id":2253,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/2241\/revisions\/2253"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/media?parent=2241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/categories?post=2241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/tags?post=2241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}