{"id":1006,"date":"2014-10-03T22:39:40","date_gmt":"2014-10-03T14:39:40","guid":{"rendered":"http:\/\/www.shuizilong.com\/house\/?p=1006"},"modified":"2014-10-03T22:39:40","modified_gmt":"2014-10-03T14:39:40","slug":"bzoj-1483-hnoi2009%e6%a2%a6%e5%b9%bb%e5%b8%83%e4%b8%81","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/house\/archives\/bzoj-1483-hnoi2009%e6%a2%a6%e5%b9%bb%e5%b8%83%e4%b8%81\/","title":{"rendered":"BZOJ 1483. [HNOI2009]\u68a6\u5e7b\u5e03\u4e01"},"content":{"rendered":"<p><!--more--><\/p>\n<h3>Brief description: <\/h3>\n<p>\u7565\u3002\uff09<\/p>\n<h3>Analysis: <\/h3>\n<p>\u542f\u53d1\u5f0f\u5408\u5e76 + \u94fe\u8868\uff09<\/p>\n<p>\uff08\u3002\u3002\u5982\u679c\u624b\u5199\u94fe\u8868\u7684\u8bdd\u3002\u3002\u53ef\u4ee5\u5220\u53bb\u4e2d\u95f4\u5df2\u7ecf\u6ca1\u7528\u7684\u683c\u5b50\u3002\u3002\u53ea\u4fdd\u7559\u8054\u901a\u5757\u5de6\u53f3\uff1f\u3002\uff09<\/p>\n<pre class=\"brush: cpp; light: false; title: ; toolbar: true; notranslate\" title=\"\">\r\n\r\n\/\/}\/* .................................................................................................................................. *\/\r\n\r\nconst int N = int(1e5) + 9, M = int(1e6) + 9;\r\n\r\nint a&#x5B;N], p&#x5B;M]; VI adj&#x5B;M];\r\nint n, m, z;\r\n\r\n#define px p&#x5B;x]\r\n#define py p&#x5B;y]\r\n\r\nvoid Merge(){\r\n    int x, y; RD(x, y); if (x == y) return; \/\/if (px == py) return;\r\n    if (!px) return;\r\n\r\n    if (!py){\r\n        py = px;\r\n        px = 0;\r\n        return;\r\n    }\r\n\r\n    if (SZ(adj&#x5B;px]) &gt; SZ(adj&#x5B;py])) swap(px, py);\r\n\r\n    ECH(it, adj&#x5B;px]){\r\n        if (a&#x5B;*it-1] == py) --z;\r\n        if (a&#x5B;*it+1] == py) --z;\r\n        adj&#x5B;py].PB(*it);\r\n    }\r\n\r\n    ECH(it, adj&#x5B;px]) a&#x5B;*it] = py;\r\n    CLR(adj&#x5B;px]); px = 0;\r\n}\r\n\r\nint main(){\r\n\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    RD(n, m); REP_1(i, n){\r\n        adj&#x5B;RD(a&#x5B;i])].PB(i), p&#x5B;a&#x5B;i]] = a&#x5B;i];\r\n        if (a&#x5B;i] != a&#x5B;i-1]) ++z;\r\n    }\r\n\r\n    DO(m){\r\n        if (RD() == 1){\r\n            Merge();\r\n        }\r\n        else{\r\n            OT(z);\r\n        }\r\n    }\r\n}\r\n\r\n<\/pre>\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":[137],"class_list":["post-1006","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-137"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2tdP7-ge","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/1006","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=1006"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/1006\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/media?parent=1006"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/categories?post=1006"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/tags?post=1006"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}