{"id":2021,"date":"2022-09-03T04:57:24","date_gmt":"2022-09-02T20:57:24","guid":{"rendered":"https:\/\/www.shuizilong.com\/house\/?p=2021"},"modified":"2022-09-03T07:28:51","modified_gmt":"2022-09-02T23:28:51","slug":"luogu-3765","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/house\/archives\/luogu-3765\/","title":{"rendered":"Luogu P3765 \u603b\u7edf\u9009\u4e3e"},"content":{"rendered":"<ul>\n<li><a href=\"https:\/\/www.luogu.com.cn\/problem\/P3765\">https:\/\/www.luogu.com.cn\/problem\/P3765<\/a><\/li>\n<\/ul>\n<p>\u7ebf\u6bb5\u6811\u7ef4\u62a4\u6f5c\u5728\u4f17\u6570\u3002<br \/>\n\u5e73\u8861\u6811\u518d\u8fdb\u884c\u6838\u5bf9\u3002<br \/>\n\u6211\u4eec\u53ef\u4ee5\u7528 atl \u91cc\u7684\u7ebf\u6bb5\u6811\uff0c\u5e73\u677f\u7535\u89c6\u91cc\u7684\u5e73\u8861\u6811\u3002<br \/>\n\u56db\u820d\u4e94\u5165\u7b49\u4e8e\u5565\u90fd\u4e0d\u7528\u5199\u3002<\/p>\n<pre class=\"brush: cpp; light: false; title: ; toolbar: true; notranslate\" title=\"\">\r\n#include &lt;lastweapon\/io&gt;\r\n#include &lt;lastweapon\/segtree&gt;\r\n#include &lt;ext\/pb_ds\/assoc_container.hpp&gt;\r\nusing namespace lastweapon;\r\nusing namespace __gnu_pbds;\r\n\r\nconst int N = int(5e5) + 9;\r\n\r\nPII op(PII a, PII b) {\r\n    if(a.fi == b.fi) return {a.fi, a.se+b.se};\r\n    if(a.se &gt;= b.se) return {a.fi, a.se-b.se};\r\n    return {b.fi, b.se-a.se};\r\n}\r\n\r\nPII e() {\r\n    return {0, 0};\r\n}\r\n\r\ntree&lt;int, null_type, less&lt;int&gt;, rb_tree_tag, tree_order_statistics_node_update&gt; T&#x5B;N];\r\n\r\nint main() {\r\n#ifndef ONLINE_JUDGE\r\n    freopen(&quot;in.txt&quot;, &quot;r&quot;, stdin);\r\n    \/\/freopen(&quot;out.txt&quot;, &quot;w&quot;, stdout);\r\n#endif\r\n\r\n    int n,m; RD(n,m);\r\n    vector&lt;PII&gt; a(n);\r\n    REP(i, n) {\r\n        T&#x5B;RD(a&#x5B;i].fi)].insert(i);\r\n        a&#x5B;i].se = 1;\r\n    }\r\n\r\n    segtree&lt;PII, op, e&gt; S(a);\r\n    DO(m) {\r\n        int l,r,s; RD(l,r,s); --l; int x = S.prod(l, r).fi;\r\n        if(T&#x5B;x].order_of_key(r)-T&#x5B;x].order_of_key(l)&gt;(r-l)\/2) s = x;\r\n        Rush {\r\n            S.set(--RD(x), {s, 1});\r\n            if (a&#x5B;x].fi != s) {\r\n                T&#x5B;a&#x5B;x].fi].erase(x); ;\r\n                T&#x5B;a&#x5B;x].fi = s].insert(x);\r\n            }\r\n        }\r\n        OT(s);\r\n    }\r\n    int x = S.prod(0, n).fi;\r\n    OT(SZ(T&#x5B;x]) &gt; n\/2 ? x :-1);\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/www.luogu.com.cn\/problem\/P3765 \u7ebf\u6bb5\u6811\u7ef4\u62a4\u6f5c\u5728\u4f17\u6570\u3002 \u5e73\u8861\u6811\u518d\u8fdb\u884c\u6838\u5bf9\u3002 \u6211\u4eec\u53ef\u4ee5\u7528 atl \u91cc\u7684\u7ebf\u6bb5\u6811\uff0c\u5e73\u677f\u7535\u89c6\u91cc\u7684\u5e73\u8861\u6811\u3002 \u56db\u820d\u4e94\u5165\u7b49\u4e8e\u5565\u90fd\u4e0d\u7528\u5199\u3002 #include &lt;lastweapon\/io&gt; #include &lt;lastweapon\/segtree&gt; #include &lt;ext\/pb_ds\/assoc_container.hpp&gt; using namespace lastweapon; using namespace __gnu_pbds; const int N = int(5e5) + 9; PII op(PII a, PII b) { if(a.fi == b.fi) return {a.fi, a.se+b.se}; if(a.se &gt;= b.se) return {a.fi, a.se-b.se}; return {b.fi, b.se-a.se}; } PII e() { return {0, 0}; } [&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-2021","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2tdP7-wB","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/2021","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=2021"}],"version-history":[{"count":1,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/2021\/revisions"}],"predecessor-version":[{"id":2022,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/2021\/revisions\/2022"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/media?parent=2021"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/categories?post=2021"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/tags?post=2021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}