{"id":1842,"date":"2016-12-27T22:00:13","date_gmt":"2016-12-27T14:00:13","guid":{"rendered":"http:\/\/sforest.in\/?p=1842"},"modified":"2016-12-27T22:00:13","modified_gmt":"2016-12-27T14:00:13","slug":"fjoi-note","status":"publish","type":"post","link":"https:\/\/sforest.in\/ja\/fjoi-note\/","title":{"rendered":"FJOI\u5012\u657021\u5929"},"content":{"rendered":"<blockquote><p>\u4eca\u5929\u6c5f\u526f\u6821\u957f\u548c\u6bb5\u957f\u548c\u6211\u4eec\u4e09\u4e2a\u8c08\u8bdd\u4e86\uff0c\u653e\u6211\u4e0a\u6765\u6760\u7701\u9009\u3002\u671f\u672b\u8003\u4e0d\u7528\u8003\u3002\u4f1a\u8003\u8981\u8003\uff08\u5012\u657017\u5929\uff09\u3002<\/p><\/blockquote>\n<p>\u4e0d\u8fc7\u8bf4\u5b9e\u8bdd21\u5929\u592a\u5c11\u4e86\u3002<br \/>\n\u7ea2\u8272\u9898\u53f7\uff1a\u6ca1\u641e\u5f88\u61c2\u7684\u9898\u3002<\/p>\n<h4>Notifications<\/h4>\n<div style=\"padding-left: 30px;\">\n<ol>\n<li>\u4e0d\u8981\u5fd8\u8bb0\u5f00long long int\u3002<\/li>\n<li>\u4e0d\u8981\u5fd8\u8bb0\u53d6\u6a21\u3002<\/li>\n<li>\u4e0d\u8981\u5fd8\u8bb0\u521d\u59cb\u5316\u6570\u7ec4\u3002\uff08\u9ad8\u7cbe\u5ea6 \/ Floyd\uff09<\/li>\n<li>\u6ce8\u610f\u8ba1\u7b97\u51fd\u6570\u7684\u4f4d\u7f6e\u3002<\/li>\n<li>\u63d0\u4ea4\u524d\u5148\u67e5\u770b\u8ba1\u7b97\u7ed3\u679c\u3002<\/li>\n<li>\u63d0\u4ea4\u524d\u591a\u505a\u51e0\u7ec4\u6570\u636e\uff0c\u7279\u522b\u662f\u505a\u6570\u636e\u96be\u5ea6\u4e0d\u5927\u7684\u65f6\u5019\u3002<\/li>\n<li>\u6ce8\u610f\u8f93\u51fa\u683c\u5f0f\uff0c\u7279\u522b\u662f\u6ca1\u6709SPJ\u7684\u5e26\u5c0f\u6570\u7684\u65f6\u5019\u3002<\/li>\n<li>\u6ce8\u610f\u67e5\u8be2\u533a\u95f4max\/min\u65f6\uff0c\u6682\u5b58\u53d8\u91cf\u7684\u53d8\u91cf\u7c7b\u578b\u3002<\/li>\n<li>abs\u4e0d\u662f\u6a21\u677f\u51fd\u6570\uff0cdouble\u7c7b\u578b\u4f7f\u7528fabs\u3002<\/li>\n<\/ol>\n<\/div>\n<p><!--more--><\/p>\n<h4>Day 1 [December 27, 2016]<\/h4>\n<div style=\"padding-left: 30px;\">\n\u7167\u53f6\u7287\u8bf4\u7684Register\u4e86bzoj\u5f00\u59cb\u5237\u3002\u4e0b\u5348\u4e00\u8282\u8bfe\u52a0\u4e0a\u4e00\u4e2a\u665a\u81ea\u4e60\u3002<\/p>\n<blockquote><p>\u201c\u8fd9\u4e2a\u547d\u6709\u70b9\u96be\u7eed\u554a\u3002\u3002<br \/>\n\u75af\u72c2\u5730\u505abzoj\u53ef\u80fd\u53ef\u4ee5\u8865\u6551\u4e00\u4e0b\u3002\u3002\u201d<\/p><\/blockquote>\n<p>\u6211\u4e5f\u8fd9\u4e48\u89c9\u5f97\u3002<br \/>\n\u6b63\u6587\u4e2d\u5bf9\u4e8e\u540d\u8bcd\u7684\u8d85\u94fe\u63a5\u5747\u8574\u542b\u201c\u8fd9\u662f\u4ec0\u4e48\u73a9\u610f\u201d\u3002<br \/>\n<strong>P1000\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1000\">A+B Problem<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u6df1\u547c\u5438\uff0c\u4e00\u5207\u6b63\u5e38\uff0c\u4e0b\u4e00\u9898\u3002<br \/>\n<strong>P1001\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1001\">[BeiJing2006]\u72fc\u6293\u5154\u5b50<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u8fd9\u662f\u4ec0\u4e48\u73a9\u610f&#8230; \u6ee1\u8111\u5b50\u90fd\u662f\u66b4\u529b\uff0c\u61f5\u903c\u4e4b\u540e\u70b9\u5f00Google\u3002<br \/>\n<em>\u5e73\u9762\u56fe\u7684\u6700\u5c0f\u5272\uff0c\u8f6c\u5bf9\u5076\u56fe\u6c42\u6700\u77ed\u8def\u3002<\/em><br \/>\n\u5177\u4f53\u64cd\u4f5c\u5c31\u662f\uff0c\u628a(1,1)\u548c(n,m)\u8fde\u4e00\u6761\u8fb9\uff0c\u6784\u6210\u4e00\u4e2a\u65b0\u9762\uff0c\u8bb0\u4e3aext\u3002\u628a\u539f\u6765\u7684\u5916\u9762\u7684\u9762\u8bb0\u4e3a0\u3002<br \/>\n\u5bf9\u4e8e\u6bcf\u6761\u8fb9\uff08\u9664\u4e86\u521a\u624d\u8fde\u7684\u90a3\u6761\uff09\uff0c\u628a\u5b83\u4e24\u4fa7\u7684\u9762\u8fde\u8d77\u6765\uff0c\u4ee3\u4ef7\u5373\u8fb9\u6743\u3002<br \/>\n\u7136\u540e\u6c42[0]\u5230[ext]\u7684\u6700\u77ed\u8def\uff0c\u5c31AC\u4e86\u3002<br \/>\n<strong>P1002\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1002\">[FJOI2007]\u8f6e\u72b6\u75c5\u6bd2<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u6253\u8868\u627e\u89c4\u5f8b\uff0cf[i] = 3 f[i-1] &#8211; f[i-2] + 2\uff0c\u8981\u9ad8\u7cbe\u5ea6\u3002<br \/>\n\u4f46\u662f\u636e\u8bf4\u6b63\u89e3\u662f\u7528\u57fa\u5c14\u970d\u592b\u77e9\u9635\u63a8\u7684\uff0c\u8fd9\u662f\u4ec0\u4e48\u73a9\u610f\u2026\u2026<br \/>\n<strong>P1003\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1003\">[ZJOI2006]\u7269\u6d41\u8fd0\u8f93<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u563f\u563f\u563f\u8fd9\u9898\u6211\u4e4b\u524d\u5199\u8fc7\u4e86\uff08\u8db4\uff09<br \/>\n\u6700\u77ed\u8def\u52a0\u4e0aDP\uff0c\u6ca1\u6709\u4ec0\u4e48\u641e\u4e0d\u61c2\u7684\u3002<br \/>\n<strong><span style=\"color: #ff0000;\">P1004<\/span>\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1004\">[HNOI2008]Cards<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u8fd9\u662f\u4ec0\u4e48\u73a9\u610f\u2026\u2026<br \/>\n\u8981\u6253\u6807\u7b7e\u7684\u8bdd\u597d\u50cf\u662fDP\uff0c<a href=\"https:\/\/zh.wikipedia.org\/wiki\/%E7%BD%AE%E6%8F%9B\">\u7f6e\u6362<\/a>\uff0c\u9006\u5143\uff0c<a href=\"https:\/\/zh.wikipedia.org\/wiki\/%E4%BC%AF%E6%81%A9%E8%B5%9B%E5%BE%B7%E5%BC%95%E7%90%86\">Burnside\u5f15\u7406<\/a>\u3002\u6709\u70b9\u50cf\u6c42\u7b80\u5316\u5269\u4f59\u7cfb\u7684\u611f\u89c9\uff08\u867d\u7136\u5b8c\u5168\u4e0d\u662f\u4e00\u4e2a\u4e1c\u897f\uff09\u3002<br \/>\n\u5443\uff0c\u8fd9\u91cc\u53c2\u8003<a href=\"http:\/\/vfleaking.blog.163.com\/blog\/static\/17480763420111169520556\/\">VFK\u7684\u535a\u5ba2<\/a>\uff0cDP\u65b9\u9762\u53c2\u8003<a href=\"http:\/\/www.itdadao.com\/articles\/c15a564929p0.html\">IT\u5927\u9053\u7684\u8fd9\u7bc7\u6587\u7ae0<\/a>\u3002<br \/>\n|X\/G|\u5c31\u662f\u89e3\uff1f\u6c42G\u4e2d\u6240\u6709\u7f6e\u6362\u7684d\u503c\u7684\u5e73\u5747\u503c\u5c31\u53ef\u4ee5\u5566\uff1f<\/p>\n<blockquote><p>\u201cX\u4e2d\u7ecf\u8fc7G[i]\u7684\u4f5c\u7528\u540e\u4ecd\u65e7\u4e3a\u6ca1\u6709\u53d8\u5316\u7684\u5143\u7d20\u4e2a\u6570\u4e3ad(i)\uff0c<br \/>\n\u7f6e\u6362\u7fa4G\u5728\u6709\u9650\u96c6\u5408X\u4f5c\u7528\u4e0b\u7b49\u4ef7\u7c7b\u7684\u6570\u76ee\u7b49\u4e8ed(1),d(2),d(3)&#8230;d(n)\u7684\u5e73\u5747\u6570\u3002\u201d<\/p><\/blockquote>\n<p>\u597d\u5427\uff0c\u90a3\u600e\u4e48\u6c42d(i)\uff1f<\/p>\n<blockquote><p>\u201c\u5bf9\u4e8e\u67d0\u4e00\u4e2a\u7f6e\u6362\u8981\u4f7f\u7f6e\u6362\u540e\u5f97\u5230\u7684\u4e0e\u539f\u6765\u7684\u76f8\u540c\uff0c\u5c31\u5e94\u8be5\u628a\u7f6e\u6362\u5f62\u6210\u7684<a href=\"https:\/\/zh.wikipedia.org\/wiki\/%E7%8E%AF_(%E4%BB%A3%E6%95%B0)\">\u73af<\/a>\u67d3\u6210\u540c\u4e00\u79cd\u989c\u8272\uff0c\u4e5f\u5c31\u662f\u8bf4\u5c5e\u4e8e\u4e00\u4e2a\u73af\u5185\u7684\u5143\u7d20\u989c\u8272\u4e00\u5b9a\u76f8\u540c\uff0c\u7136\u540e\u4e00\u5b9a\u8981\u6709\u4e00\u5b9a\u91cf\u7684\u7ea2\u84dd\u7eff\u8272\uff0c\u56e0\u6b64\u7528\u4e00\u4e2a\u5b8c\u5168\u80cc\u5305\u5373\u53ef\u3002<br \/>\nf[i][j][k]\u8868\u793a\u9009\u4e86i\u5f20\u7ea2\u8272j\u5f20\u84dd\u8272k\u5f20\u7eff\u8272\u7684\u65b9\u6848\u6570\uff0cf[i][j][k]=f[i][j][k]+f[i-sum][j][k]+f[i][j-sum][k]+f[i][j][k-sum](sum\u8868\u793a\u5f53\u524d\u73af\u5927\u5c0f\uff0c\u7136\u540ei,j,k\u4e00\u5b9a\u8981\u5224\u662f\u4e0d\u662f\u5927\u4e8esum\uff09\uff0c\u6700\u540e\u8fd8\u6709\u5c31\u662f\u4efb\u4f55\u65f6\u5019\u90fd\u4e0d\u8981\u5fd8\u4e86\u4e0d\u52a8\u4e5f\u662f\u4e00\u4e2a\u7f6e\u6362\uff0c\u56e0\u6b64\u6709m+1\u4e2a\u7f6e\u6362\u3002\u201d<\/p><\/blockquote>\n<p>\u6069\u2026\u2026\u7136\u540e\u2026\u2026\u5c31AC\u4e86\u3002<br \/>\n\u8fd9\u9898\u8c03\u4e86\u534a\u5929\u5728\u6d1b\u8c37\u4e0a\u5404\u79cdWA\u548cTLE\uff0c\u767e\u601d\u4e0d\u5f97\u5176\u89e3\u3002<br \/>\n\u7136\u540e\u53d1\u73b0\u6211\u628a\u672c\u6765\u53ea\u8981\u8dd1\u4e00\u6b21\u7684\u8ba1\u7b97\u51fd\u6570\u91cd\u590d\u8dd1\u4e86n\u6b21\uff0c\u653e\u5728input\u51fd\u6570\u91cc\u4e86\u3002\n<\/p><\/div>\n<h4>Day 2 [December 28, 2016]<\/h4>\n<div style=\"padding-left: 30px;\">\n\u6069\u2026\u2026\u65e9\u4e0a\u7684\u653f\u6cbb\u8bfe\u548c\u5730\u7406\u8bfe\u5c31\u2026\u2026\u7b97\u4e86\u5427\u2026\u2026\uff1f<br \/>\n<strong>P1005\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1005\">[HNOI2008]\u660e\u660e\u7684\u70e6\u607c<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u8fd9\u9898\u636e\u8bf4\u8981\u7528<a href=\"https:\/\/zh.wikipedia.org\/wiki\/%E6%99%AE%E5%90%95%E5%BC%97%E5%BA%8F%E5%88%97\">Pr\u00fcfer\u5e8f\u5217<\/a>\u3002<\/p>\n<blockquote><p>\u201c\u4e00\u68f5\u6811\u8981\u5f97\u5230\u666e\u5415\u5f17\u5e8f\u5217\uff0c\u65b9\u6cd5\u662f\u9010\u6b21\u53bb\u6389\u6811\u7684\u9876\u70b9\uff0c\u76f4\u5230\u5269\u4e0b\u4e24\u4e2a\u9876\u70b9\u3002\u8003\u8651\u6811<i>T<\/i>\uff0c\u5176\u9876\u70b9\u4e3a{1, 2, &#8230;, <i>n<\/i>}\u3002\u5728\u7b2c<i>i<\/i>\u6b65\uff0c\u53bb\u6389\u6807\u53f7\u6700\u5c0f\u7684\u53f6\uff0c\u5e76\u628a\u666e\u5415\u5f17\u5e8f\u5217\u7684\u7b2c<i>i<\/i>\u9879\u8bbe\u4e3a\u8fd9\u53f6\u7684\u90bb\u9876\u70b9\u7684\u6807\u53f7\u3002<br \/>\n\u4e00\u68f5\u6811\u7684\u5e8f\u5217\u660e\u663e\u662f\u552f\u4e00\u7684\uff0c\u800c\u4e14\u957f\u4e3a<i>n<\/i>\u00a0\u2212\u00a02\u3002\u201d<\/p><\/blockquote>\n<p>\u53e6\u5916\u6709\u4e2aCayley\u5b9a\u7406\uff0c<i>n<\/i>\u9876\u70b9\u7684\u6807\u53f7\u6811\u5171\u6709<i>n<\/i><sup><i>n<\/i>\u22122<\/sup>\u68f5\u3002\uff08\u867d\u7136\u8fd9\u9898\u597d\u50cf\u6ca1\u7528\uff09\u3002<br \/>\n\u603b\u4e4b\uff0c\u8fd9\u4e2a\u6811\u53ef\u4ee5\u8868\u793a\u4e3an-2\u957f\u5ea6\u7684\u5e8f\u5217\uff0c\u8981\u5f80\u91cc\u9762\u63d2\u5165(tot=\u5ea6\u6570\u548c-1)\u4e2a\u5e8f\u53f7\uff1b\u63d2\u7b2c\u4e00\u4e2a\u8282\u70b9\u7684\u65b9\u6cd5x\u63d2\u7b2c\u4e8c\u4e2a\u8282\u70b9\u7684\u65b9\u6cd5&#8230;\u518dx\u65e0\u5ea6\u6570\u9650\u5236\u7684m\u4e2a\u6392\u5217\u5728\u5269\u4f59(n-2-tot)\u4e2a\u7a7a\u95f4\u4e2d\u3002<br \/>\n\u53c2\u8003\u662f<a href=\"http:\/\/www.cnblogs.com\/zhj5chengfeng\/p\/3278557.html\">\u8fd9\u7bc7\u535a\u6587<\/a>\uff0c\u8fd8\u6709<a href=\"http:\/\/codeplay0314.blogspot.jp\/2015\/06\/bzoj-1005-bzoj-1211_27.html\">\u8fd9\u7bc7<\/a>\u3002<br \/>\n\u6211\u611f\u89c9\u6211\u8981\u6b7b\u4e86Orz<br \/>\n\u6211\u8279\uff01A\u4e86\uff01<br \/>\n\u9ad8\u7cbe\u5ea6\u7a0d\u5fae\u6539\u4e86\u4e00\u4e0b\uff0c\u8fd9\u56de\u5c45\u7136\u6ca1\u51fa\u9519\u3002<br \/>\n\u6211\u8fd8\u60f3\u7740\u8fd9\u4e2a\u6570\u636e\u89c4\u6a21\u600e\u4e48\u53ef\u80fd\u4f1aTLE\uff0c\u7ed3\u679c\u662f\u56e0\u4e3a\u5fd8\u4e86\u628a\u4e4b\u524d\u6539\u7684\u5730\u65b9\u6539\u56de\u6765\u5bfc\u81f4\u8d28\u56e0\u6570\u6570\u91cf\u53d8\u6210\u4e86\u8d1f\u6570\u2026\u2026<br \/>\n\u7ed3\u679c\u4e24\u8282\u8bfe\u5c31\u505a\u4e86\u4e24\u9898\uff08\u8fd8\u6709\u4e00\u9898\u662f\u6628\u5929\u7684\uff09\uff08\u8db4\uff09\u3002<br \/>\n<strong>P1006\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1006\">[HNOI2008]\u795e\u5947\u7684\u56fd\u5ea6<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u521a\u624d\u6253\u7684\u4e94\u767e\u591a\u4e2a\u5b57\u4e0d\u89c1\u4e86\uff0c\u771f\u662f\u65e5\u72d7\u3002<br \/>\n\u7b97\u4e86\uff0c\u8fd9\u9898\u5c31\u662f<a href=\"https:\/\/zh.wikipedia.org\/wiki\/%E5%BC%A6%E5%9C%96\">\u5f26\u56fe<\/a>\u67d3\u8272\u3002<br \/>\n\u53c2\u8003\u8d44\u6599\u662f<a href=\"http:\/\/wenku.baidu.com\/view\/a2bf4ad9ad51f01dc281f1df.html\">\u5f26\u56fe\u4e0e\u533a\u95f4\u56fe\u7684PPT<\/a>\u3002<br \/>\n\u89e3\u6cd5\u4f3c\u4e4e\u6709\u4e24\u79cd\uff1a<br \/>\n<a href=\"https:\/\/en.wikipedia.org\/wiki\/Lexicographic_breadth-first_search\">\u5b57\u5178\u5e8fBFS<\/a>\uff08\u8fd9\u4e2a\u6211\u5e76\u6ca1\u6709\u770b\u61c2\uff09<\/p>\n<ul>\n<li>Initialize a sequence \u03a3 of sets, to contain a single set containing all vertices.<\/li>\n<li>Initialize the output sequence of vertices to be empty.<\/li>\n<li>While \u03a3 is non-empty:\n<ul>\n<li>Find and remove a vertex <i>v<\/i> from the first set in \u03a3<\/li>\n<li>If the first set in \u03a3 is now empty, remove it from \u03a3<\/li>\n<li>Add <i>v<\/i> to the end of the output sequence.<\/li>\n<li>For each edge <i>v-w<\/i> such that <i>w<\/i> still belongs to a set <i>S<\/i> in \u03a3:\n<ul>\n<li>If the set <i>S<\/i> containing <i>w<\/i> has not yet been replaced while processing <i>v<\/i>, create a new empty replacement set <i>T<\/i> and place it prior to <i>S<\/i> in the sequence; otherwise, let <i>T<\/i> be the set prior to <i>S<\/i>.<\/li>\n<li>Move <i>w<\/i> from <i>S<\/i> to <i>T<\/i>, and if this causes <i>S<\/i> to become empty remove <i>S<\/i> from \u03a3.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Matching_(graph_theory)\">\u6700\u5927\u52bf\u7b97\u6cd5<\/a>\uff0c\u4f46\u662f\u6309\u7167\u82f1\u6587\u540d\u597d\u50cf\u5e94\u8be5\u53eb\u6700\u5927\u5339\u914d\u641c\u7d22\uff1f<br \/>\n\u8fd9\u4e2a\u5012\u662f\u633a\u597d\u7406\u89e3\u7684\uff0c\u4ecen\u52301\u6807\u53f7\u3002\u6bcf\u6b21\u6807\u53f7\u7684\u5bf9\u8c61\u662f\u73b0\u5728\u52bf\u6700\u5927\u7684\u70b9\uff0c\u5176\u4e2d\u52bf\u5b9a\u4e49\u4e3a\u76f8\u8fde\u7684\u5df2\u6807\u53f7\u7684\u70b9\u6570\u3002\u6807\u53f7\u4e3ai\u7684\u5c31\u662f<a href=\"https:\/\/en.wikipedia.org\/wiki\/Chordal_graph#Perfect_elimination_and_efficient_recognition\">\u5b8c\u7f8e\u6d88\u9664\u5e8f\u5217<\/a>\u7684\u7b2ci\u4e2a\u3002<\/p>\n<blockquote><p>\u201c\u5148\u6c42\u51fa\u5b8c\u7f8e\u6d88\u9664\u5e8f\u5217\uff0c\u518d\u4f9d\u7167\u5b8c\u7f8e\u6d88\u9664\u5e8f\u5217\uff0c\u4ece\u540e\u5411\u524d\uff0c\u4f9d\u6b21\u8d2a\u5fc3\u67d3\u8272\uff0c\u6bcf\u6b21\u5c3d\u91cf\u67d3\u7f16\u53f7\u5c0f\u7684\u989c\u8272\u3002<br \/>\n\u6700\u540e\u8f93\u51fa\u6700\u5927\u989c\u8272\u7f16\u53f7\u5373\u53ef\u3002\u201d<\/p><\/blockquote>\n<p>\u90a3\uff0c\u5199\u770b\u770b\u2026\u2026WA\u4e86\u3002<br \/>\n\u9042\u53d1\u73b0\u597d\u50cf\u5199\u7684\u4e0d\u5bf9\u3002<br \/>\n\u6253\u51faqueue\u4e00\u770b\uff0c\u53d1\u73b0\u6709\u91cd\u590d\u7684\uff0c\u4ec0\u4e48\u90fd\u660e\u767d\u4e86\u2026\u2026<br \/>\n\u7136\u540e\u73b0\u5728\u56de\u5934\u770bjcvb\u8bf4\u7684\u5c31\u660e\u767d\u5566\u3002<\/p>\n<blockquote><p>\u7ef4\u62a4\u6bcf\u4e2a\u7ed3\u70b9\u7684\u201c\u52bf\u201d\u3002\u5e76\u7ef4\u62a4n\u4e2a\u94fe\u8868\uff0c\u5206\u522b\u8868\u793a\u52bf\u4e3a0~n-1\u7684\u7ed3\u70b9\u5404\u6709\u54ea\u4e9b\u3002<br \/>\n\u7ef4\u62a4\u4e00\u4e2abest\u503c\u8868\u793a\u5f53\u524d\u6700\u5927\u7684\u52bf\u3002<br \/>\n\u518d\u5f00\u4e00\u4e2abool\u6570\u7ec4\u8bb0\u5f55\u6bcf\u4e2a\u70b9\u662f\u5426\u5df2\u88ab\u53d6\u51fa\u653e\u5165\u5e8f\u5217\u3002<br \/>\n\u521d\u59cb\u65f6\u6bcf\u4e2a\u70b9\u52bf\u4e3a0\uff0c\u90fd\u653e\u57280\u53f7\u94fe\u8868\u91cc\u3002best=0\u3002<br \/>\n\u2460\u66f4\u65b0\u64cd\u4f5c\uff1a\u67d0\u7ed3\u70b9u\u7684\u52bf\u4ecex\u53d8\u4e3ax+1\u65f6\uff0c\u53ea\u8981\u628au\u63d2\u5230x+1\u94fe\u8868\u7684\u5934\u90e8\uff0c\u65e0\u9700\u5c06\u5176\u4ecex\u94fe\u8868\u4e2d\u5220\u9664\uff08\u6240\u4ee5\u4e0d\u7528\u5199\u53cc\u5411\u94fe\u8868\uff09\u3002\u7136\u540e\u66f4\u65b0best\u503c\u3002<br \/>\n\u2461\u53d6\u6700\u5927\u64cd\u4f5c\uff1a\u53d6\u6700\u5927\u52bf\u7ed3\u70b9\u65f6\u4ecebest\u94fe\u8868\u7684\u5934\u5f00\u59cb\u53d6\uff0c\u5982\u679c\u53d6\u5230\u7684\u662f\u5df2\u88ab\u653e\u5165\u5e8f\u5217\u7684\u7ed3\u70b9\u5c31\u5220\u9664\u5e76\u7ee7\u7eed\u5f80\u540e\u53d6\uff0c\u4ecd\u53d6\u4e0d\u5230\u5219&#8211;best\uff0c\u76f4\u5230\u53d6\u5230\u4e00\u4e2a\u672a\u88ab\u653e\u5165\u5e8f\u5217\u7684\u70b9\u3002<br \/>\n\u64cd\u4f5c\u2460\u6bcf\u6b21O(1)\uff0c\u603b\u5171\u6267\u884cO(m)\u6b21\u3002best++\u4e5f\u88ab\u6267\u884cO(m)\u6b21\uff0c\u90a3\u4e48\u64cd\u4f5c\u2461\u4e2d&#8211;best\u4e5f\u53ea\u6709O(m)\u6b21\u3002\u64cd\u4f5c\u2460\u6bcf\u6b21\u63d2\u4e00\u4e2a\u7ed3\u70b9\uff0c\u5219\u603b\u5171\u6709O(n+m)\u4e2a\u7ed3\u70b9\uff0c\u800c\u64cd\u4f5c\u2461\u4e2d\u6bcf\u5f80\u540e\u53d6\u4e00\u4e2a\u5c31\u5220\u4e00\u4e2a\uff0c\u6240\u4ee5\u4e5f\u662fO(n+m)\u3002<\/p><\/blockquote>\n<p>\u54ce\uff0c\u6211\u8fd8\u662f\u628a\u4ee5\u524d\u7684\u90a3\u4e2ablockquote\u7684css\u642c\u8fc7\u6765\u5427\u3002<br \/>\n\u6069\uff0cAC\u4e86\u3002<br \/>\n\u7b2c\u4e8c\u6b21\u7684WA\u6b7b\u4e8e\u8d2a\u5fc3\u9006\u5e8f\uff0c\u5e94\u8be5\u4ece\u540e\u5f80\u524d\u6d82\u8272\uff0c\u800c\u4e0d\u662f\u4ece\u524d\u5f80\u540e\u6d82\u8272\u3002\u4e0d\u8fc7\u5230\u5e95\u600e\u4e48\u627e\u201c\u6700\u5c0f\u7684\u53ef\u7528\u7684\u989c\u8272\u201d\u6548\u7387\u6bd4\u8f83\u9ad8\u5462\uff1f\u6211\u76f4\u63a5\u626b\u4e86\u4e00\u904d\u5468\u56f4\u7684\u6240\u6709\u70b9\uff0c\u7136\u540e\u62ffbool\u6570\u7ec4\u6807\u8bb0\uff0c\u518d\u627e\u6700\u5c0f\u7684\u53ef\u7528\u503c\u3002<br \/>\n<strong>P1007\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1007\">[HNOI2008]\u6c34\u5e73\u53ef\u89c1\u76f4\u7ebf<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u770b\u8d77\u6765\u662f\u9053\u51e0\u4f55\u9898\uff0c\u968f\u4fbf\u641c\u4e86\u4e00\u4e0b\u2026\u2026\u534a\u51f8\u5305\u662f\u4ec0\u4e48\u73a9\u610f\u513f\uff1f<br \/>\n\u8fd9\u9898\u8bf4\u4e0d\u5b9a\u53ef\u4ee5\u76f4\u63a5\u5199\uff08\uff1f\uff09<br \/>\n\u867d\u7136\u6211\u4e0d\u77e5\u9053\u534a\u51f8\u5305\u662f\u4ec0\u4e48\u73a9\u610f\u513f\u4f46\u662f\u6211\u5199\u4e86\u4e2a\u4e8c\u5206\uff08\u5927\u6982\u5427\uff09\u5c31AC\u4e86\u3002<br \/>\n\u5177\u4f53\u6765\u8bf4\uff0c\u6309\u7b2c\u4e00\u5173\u952e\u5b57\u659c\u7387\u5347\u5e8f\uff0c\u7b2c\u4e8c\u5173\u952e\u5b57\u622a\u8ddd\u964d\u5e8f\u6392\u5e8f\u3002<br \/>\n\u7b2c\u4e00\u6761\u76f4\u7ebf(a)\u548c\u6700\u540e\u4e00\u6761\u76f4\u7ebf(b)\u663e\u7136\u662f\u53ef\u89c1\u7684\u561b\u3002<br \/>\n\u7136\u540e\u7b97\u51fa\u5b83\u4eec\u7684\u4ea4\u70b9(x1,y1)\uff0c\u518d\u4ece(a,b)\u8303\u56f4\u5185\u67e5\u627e\u5728x1\u65f6y\u6700\u5927\u7684\u4e00\u6761\u76f4\u7ebf(c)\uff0c\u8fd9\u4e2a\u4e5f\u53ef\u89c1\u3002<br \/>\n\u5206\u522b\u628aa\u548cc\uff0cc\u548cb\u62d6\u51fa\u6765\u91cd\u590d\u5982\u4e0a\u64cd\u4f5c\uff0c\u7136\u540e\u5c31\u6ca1\u6709\u7136\u540e\u4e86\u3002<br \/>\n\u6765\u5427\uff0c\u4e0b\u4e00\u9898\u3002<br \/>\n<strong>P1008\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1008\">[HNOI2008]\u8d8a\u72f1<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u8fd9\u9898\u5e94\u8be5\u5c31\u662f\u666e\u901a\u7684\u7ec4\u5408\u6570\u5b66\uff1f\u2026\u2026\u5176\u5b9e\u662f\u5feb\u901f\u5e42\u6a21\u677f\u9898\u3002<br \/>\n\u7528Python\u4ea4\u4e86\u4e00\u6ce2&#8230;\u5fd8\u8bb0\u53d6\u6a21\uff08\u6342\u8138\uff09<br \/>\n\u7528C++\u4ea4\u4e86\u4e00\u6ce2&#8230;\u5c45\u7136\u5bf9\u6307\u6570\u53d6\u4e86\u6a21\uff08\u6342\u8138\uff09<br \/>\n\u6ca1\u8138\u89c1\u4eba\u4e86\u2026\u2026<br \/>\n<strong><span style=\"color: #ff0000;\">P1009<\/span>\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1009\">[HNOI2008]GT\u8003\u8bd5<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u4e00\u773c\u770b\u4e0a\u53bb\u597d\u50cf\u662f\u7ec4\u5408\u3002<br \/>\n\u4ed4\u7ec6\u4e00\u60f3\u597d\u50cf\u54ea\u91cc\u4e0d\u5bf9\u554a&#8230;<br \/>\n\u8fd9\u9898\u600e\u4e48\u5217\u5f0f\u5b50\u554a&#8230;<br \/>\nGoogle\u4e4b\uff0c\u53d1\u73b0\u8fd9\u73a9\u610f\u662fDP\uff08\u6342\u8138\uff09<br \/>\nGoogle\u8fd8\u8bf4\u662f<a href=\"https:\/\/zh.wikipedia.org\/wiki\/AC%E8%87%AA%E5%8A%A8%E6%9C%BA%E7%AE%97%E6%B3%95\">AC\u81ea\u52a8\u673a<\/a>(KMP)\u3002<br \/>\nKMP\u662f\u9000\u5316\u7684AC\u81ea\u52a8\u673a\uff0c\u5373\u6a21\u5f0f\u4e32\u53ea\u6709\u4e00\u4e2a\u7684\u60c5\u51b5\u3002\u8fd9\u91cc\u53c2\u8003<a href=\"http:\/\/blog.csdn.net\/v_july_v\/article\/details\/7041827\">\u8fd9\u7bc7\u535a\u6587<\/a>\u6765\u5b66\u4e60\u3002<br \/>\n\u9898\u89e3\u7684\u8bdd\uff0c<a href=\"http:\/\/www.voidcn.com\/blog\/jeremygjy\/article\/p-5046616.html\">\u8fd9\u7bc7\u535a\u6587<\/a>\u597d\u50cf\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002\u4f46\u662f\u4ed6\u6ca1\u8bf4P\u662f\u4ec0\u4e48\u4e1c\u897f\u3002<br \/>\n\u8bf4\u5b9e\u8bdd\u6211\u8fd8\u662f\u4e0d\u592a\u61c2KMP\u548c\u8fd9\u9898\u7684\u5173\u7cfborz<br \/>\n\u770b\u4e86<a href=\"http:\/\/www.itdadao.com\/articles\/c15a209983p0.html\">\u8fd9\u91cc\u7684\u4ee3\u7801<\/a>\u597d\u50cf\u61c2\u4e86DP\u957f\u4ec0\u4e48\u6837\u3002<br \/>\n\u53ef\u662fKMP\uff1f<br \/>\n\u8fd9\u9898\u7684DP\u4f3c\u4e4e\u8981\u7528\u5230<a href=\"https:\/\/zh.wikipedia.org\/zh\/%E7%9F%A9%E9%99%A3%E4%B9%98%E6%B3%95\">\u77e9\u9635\u4e58\u6cd5<\/a>x\u5feb\u901f\u5e42\u6765\u52a0\u901f\u3002<br \/>\n\u4e0d\u8fc7\u6211\u73b0\u5728\u88ab\u7f16\u8f91\u8ffd\u7740\uff0c\u5148\u6253\u70b9\u7a3f\u5b50&#8230;<br \/>\n\u6700\u540e\u6211\u5bf9\u7740\u522b\u4eba\u7684\u4ee3\u7801\u6253\u4e86\u4e00\u904d\u3002<br \/>\n\u7136\u540e\u6211\u6253\u51fa\u4e86\u4e00\u4e2a<br \/>\n[cpp]num[i] = str[i] &#8211; 0;[\/cpp]<br \/>\n\u88ab\u81ea\u5df1\u8822\u5230\u4e86\u2026\u2026<br \/>\n\u4f46\u662f\u6211\u8fd8\u662f\u6ca1\u641e\u592a\u61c2\u600e\u4e48\u63a8\u51fa\u6765\u7684\u3002\u56de\u5934\u95ee\u53f6\u7287\u2026\u2026\n<\/div>\n<h4>Day 3 [December 29, 2016]<\/h4>\n<div style=\"padding-left: 30px;\">\n\u4eca\u5929\u65e9\u4e0a\u82b1\u4e86\u597d\u591a\u65f6\u95f4\u5728P1009\u4e0aOrz\u3002<br \/>\n<strong><span style=\"color: #ff0000;\">P1010<\/span>\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1010\">[HNOI2008]\u73a9\u5177\u88c5\u7bb1toy<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u5f85\u4f1a\u6211\u8981\u6253<a href=\"http:\/\/codeforces.com\/contests\/753\">\u8fd9\u4e2a<\/a>\u73a9w\u3002<br \/>\n<i>O(n<\/i><sup>2<\/sup>) \u7684\u505a\u6cd5\u5012\u662f\u6bd4\u8f83\u663e\u7136\uff0c\u5c31\u662f\u4e00\u4e2a\u533a\u95f4\u52a8\u89c4\uff0c\u4f46\u662f\u8fd9\u6837\u663e\u7136\u8fc7\u4e0d\u53bb\uff0c\u9700\u8981<a href=\"http:\/\/www.cnblogs.com\/ka200812\/archive\/2012\/08\/03\/2621345.html\">\u659c\u7387\u4f18\u5316<\/a>\u3002<br \/>\n\u8fd9\u9898\u53c2\u8003<a href=\"http:\/\/www.cnblogs.com\/lcf-2000\/p\/5905591.html\">\u8fd9\u91cc<\/a>\uff0c\u8bf4\u5f97\u6bd4\u8f83\u6e05\u695a\u3002<br \/>\n\u8bf4\u8d77\u6765\u6211\u53c8\u5fd8\u4e86\u52a0long long int\u3002\u521a\u624d\u4e0d\u5c0f\u5fc3\u5728\u673a\u623f\u7761\u7740\uff0c\u73ed\u4e3b\u4efb\u8fdb\u6765\u628a\u6211\u53eb\u9192\uff0c\u5dee\u70b9\u6ca1\u5413\u6b7borz<br \/>\n\u8bf4\u8d77\u6765\u9898\u89e3\u91cc\u9762\u4e5f\u63d0\u5230\u4e86<a href=\"https:\/\/zh.wikipedia.org\/wiki\/%E5%87%B8%E5%8C%85\">\u51f8\u5305<\/a>&#8230;\uff1f<br \/>\n\u4ee3\u7801\u91cc\u6709\u4e24\u4e2awhile\u662f\u7528\u6765\u7ef4\u62a4\u961f\u5217\u7684left\u548cright\uff0c\u4f46\u662f\u6761\u4ef6\u4e0d\u662f\u5f88\u61c2\u3002<br \/>\n<strong>#753A\u00a0<a href=\"http:\/\/codeforces.com\/contest\/753\/problem\/A\">Santa Claus and Candies<\/a> (Accepted)<\/strong><br \/>\n\u8f7b\u677e\u6109\u5feb\u7684\u6c34\u9898\u3002<br \/>\n<strong>#753B\u00a0<a href=\"http:\/\/codeforces.com\/contest\/753\/problem\/B\">Interactive Bulls and Cows (Easy)<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u8fd9\u662f\u6211\u7b2c\u4e00\u6b21\u505a\u4ea4\u4e92\u5f0f\u9898\u76ee\uff0c\u60f3\u60f3\u8fd8\u6709\u70b9\u5174\u594b\u5462w<br \/>\n\u9898\u76ee\u5927\u610f\u662f\u8fd9\u6837\u7684\uff0c\u6709\u56db\u4e2a\u4e92\u4e0d\u76f8\u540c\u7684\u6570\u5b57\u7ed9\u4f60\u731c\uff0c\u6bcf\u6b21\u53cd\u9988\u662f\u6b63\u786e\u4f4d\u7f6e\u7684\u6570\u5b57\u4e2a\u6570\u548c\u9519\u8bef\u4f4d\u7f6e\u7684\u6570\u5b57\u4e2a\u6570\u3002<br \/>\n\u6bd4\u65b9\u8bf4\u7b54\u6848\u662f2378\uff0c\u731c2113\u7684\u8bdd\u5c31\u4f1a\u5f97\u52301\/1\u7684\u7ed3\u679c\u3002<br \/>\nProblem B\u7684\u786e\u7b80\u5355\uff0c\u56e0\u4e3a\u4f60\u53ef\u4ee5\u731c50\u6b21\u3002\u4e00\u4e2a\u6570\u5b57\u4e00\u4e2a\u6570\u5b57\u8bd5\u4e0b\u53bb\u90fd\u6ca1\u95ee\u9898\uff1b\u6216\u8005\u4e5f\u53ef\u4ee5\u7ecf\u75310000 \/ 1111 \/ &#8230; \u6765\u627e\u51fa\u56db\u4e2a\u6570\u5b57\uff0c\u7136\u540enext_permutation\u641e\u4e0b\u53bb\u3002\uff08\u6211\u662f\u8fd9\u4e48\u505a\u7684\uff09<br \/>\n\u597d\u4e86\uff0c\u90a3\u4e48\u6211\u7684\u95ee\u9898\u662f\uff0cProblem C\u7684Hard\u9650\u5236\u57287\u6b21 &#8212; \u6362\u53e5\u8bdd\u8bf4\uff0c\u57286\u6b21\u5185\u8981\u7b97\u51fa\u6b63\u89e3\u3002\u600e\u4e48\u641e\u5462\uff1f<br \/>\n<strong>P1011\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1011\">[HNOI2008]\u9065\u8fdc\u7684\u884c\u661f<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u867d\u7136\u6211\u8fd8\u662f\u8ff7\u8ff7\u7cca\u7cca\u7684\uff0c\u4f46\u662f\u603b\u7b97\u6765\u5230\u4e86HNOI2008\u7684\u6700\u540e\u4e00\u9898\u3002<br \/>\n\u4eca\u5929\u597d\u56f0\u554a\uff0c\u6548\u7387\u4e0d\u884c\u3002\u4e2d\u5348\u8fd8\u632a\u51fa\u6765\u6253\u7a3f\u5b50\u4e86&#8230;\u4e0d\u8fc7\u7ec8\u4e8e\u4e00\u4ef6\u843d\u7740\uff08\u7b49\u7b49\uff0c\u6211\u597d\u50cf\u62d6\u4e86\u4e00\u4e2a\u6708\uff1f\u90a3\u6211\u662f\u4e0d\u662f\u8981\u5f00\u59cb\u6253\u4e0b\u4e00\u7bc7\u4e86&#8230;\uff09<br \/>\n\u8fd9\u9898\u662f\u778e\u641e\u9898\u5427\u2026\u2026<br \/>\n\u9700\u8981\u6570\u7684\u6570\u5b57\u5728\u4e00\u5b9a\u4ee5\u4e0b\u5c31\u66b4\u529b\u7b97\uff0c\u5426\u5219\u628aj\u5168\u90e8\u5f53\u6210\u5e73\u5747\u503c\u4e00\u6b21\u7b97\u51fa\u6765\u2026\u2026\u6c14\u54ed.jpg<br \/>\n<strong>P1012\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1012\">[JSOI2008]\u6700\u5927\u6570maxnumber<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u7b80\u5355\u7684<a href=\"https:\/\/zh.wikipedia.org\/wiki\/%E7%BA%BF%E6%AE%B5%E6%A0%91\">\u7ebf\u6bb5\u6811<\/a>\u6a21\u677f\u9898\uff0c\u636e\u8bf4\u8fd8\u6709\u4e00\u4e9b\u7384\u5b66\u505a\u6cd5\uff1f<br \/>\n\u56e0\u4e3a\u662f\u5355\u70b9\u4fee\u6539\u6240\u4ee5\u8fdelazy\u90fd\u4e0d\u7528\u6253\uff0c\u8f7b\u677e\u52a0\u6109\u5feb\u3002<br \/>\n\u5f53\u521d\u662f\u5bf9\u7740<a href=\"http:\/\/www.cnblogs.com\/TenosDoIt\/p\/3453089.html\">\u8fd9\u7bc7\u535a\u6587<\/a>\u5b66\u7684\u3002\n<\/div>\n<h4>Day 4 [December 30, 2016]<\/h4>\n<div style=\"padding-left: 30px;\">\n\u5982\u679c\u4e0d\u51fa\u610f\u5916\u7684\u8bdd\uff0c\u4eca\u665a\u6253 <a href=\"http:\/\/codeforces.com\/contests\/750\">Good Bye 2016<\/a>\u3002<br \/>\n\u65e9\u4e0a\u5403\u996d\u7684\u65f6\u5019\u7a81\u7136\u5bf9\u4f1a\u8003\u611f\u5230\u4e86\u4e0d\u5b89Orz<br \/>\n<strong><span style=\"color: #ff0000;\">P1013<\/span>\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1013\">[JSOI2008]\u7403\u5f62\u7a7a\u95f4\u4ea7\u751f\u5668sphere<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u8fd9\u9898\u8981\u7528<a href=\"https:\/\/zh.wikipedia.org\/wiki\/%E9%AB%98%E6%96%AF%E6%B6%88%E5%8E%BB%E6%B3%95\">\u9ad8\u65af\u6d88\u5143<\/a>\u6765\u505a\u3002\u4e00\u5f00\u59cb\u6211\u8fd8\u5728\u60f3\u600e\u4e48\u89e3\u4e00\u5806\u65b9\u7a0borz<br \/>\n\u81ea\u5df1\u5199\u4e86\u4e2aO(n^2)\u7684\u7b97\u6cd5\uff0c\u663e\u7136\u4e0d\u5bf9orz<br \/>\n\u597d\u50cf\u8fd8\u662f\u4e0d\u592a\u61c2\uff08\u8db4\uff09\u3002<br \/>\n\u53c2\u8003Wiki\u5199\u7684<br \/>\n<strong><span style=\"color: #800080;\">P1014<\/span>\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1014\">[JSOI2008]\u706b\u661f\u4ebaprefix<\/a>\u00a0(Suspended)<\/strong><br \/>\n\u9ec4\u5b66\u957f\u7684\u9898\u89e3\u8868\u793a\u8fd9\u9898\u662f<a href=\"https:\/\/zh.wikipedia.org\/zh-hans\/%E4%BC%B8%E5%B1%95%E6%A0%91\">splay<\/a>\u7ef4\u62a4\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u4e8c\u5206+hash\u5224\u65ad\u3002<br \/>\n\u53f6\u7287\u8868\u793asplay\u53ef\u4ee5\u5148\u9e3d\u6389\u2026\u2026\u771f\u7684\u6ca1\u95ee\u9898\u5417\uff1f<br \/>\n\u90a3\u5c31\u5495\u5495\u5495\u5495\u5495\u2026\u2026\n<\/div>\n<h4>Day 5\u00a0[December 31, 2016]<\/h4>\n<div style=\"padding-left: 30px;\">\n\u6628\u665a\u6253\u4e86\u6bd4\u8d5b\uff0cSolve 2 out 8 Orz<br \/>\nProblem B\u4e0d\u77e5\u9053\u4e3a\u4ec0\u4e48WA\u6389\u4e86\u3002\u8be5\u6b7b\u7684\u5317\u6781\u718a\uff08\u3002<br \/>\nProblem F\u660e\u660e\u77e5\u9053\u89e3\u6cd5\uff0c\u5728\u65f6\u9650\u524d\u6ca1\u6253\u51fa\u6765\uff0c\u5783\u573e\u7f51\u7edc\u6bc1\u6211\u9752\u6625\uff08\u6253\u6eda\uff09<br \/>\n\u5fc3\u597d\u7d2f\u2026\u2026<br \/>\n<strong>P1015\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1015\">[JSOI2008]\u661f\u7403\u5927\u6218starwar<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u53cd\u5411\u5e76\u67e5\u96c6\u3002<br \/>\n\u597d\u50cf\u8fd8\u662f\u4e0d\u592a\u61c2\uff08\u8db4\uff09\u3002\n<\/div>\n<h4>Day 6\u00a0[January 1, 2017]<\/h4>\n<div style=\"padding-left: 30px;\">\u55b5\u55b5\u55b5\u3002<\/div>\n<h4>Day 7\u00a0[January 2, 2017]<\/h4>\n<div style=\"padding-left: 30px;\">\n\u611f\u89c9\u4f1a\u8003\u4e0d\u5999\u4e86\u554aorz\u6050\u6015\u5f97\u5f00\u4e2aPage\u6574\u7406\u6587\u79d1\u77e5\u8bc6\u70b9\u4e86\u2026\u2026\uff08\u614c\u5f20\uff09<br \/>\n<strong>P1016\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1016\">[JSOI2008]\u6700\u5c0f\u751f\u6210\u6811\u8ba1\u6570<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u8fd9\u9898\u7528\u5230\u7684\u6027\u8d28\u6211\u5927\u6982\u662f\u6ca1\u6cd5\u81ea\u5df1\u60f3\u51fa\u6765\u7684\u7f62\uff08\u671b\u5929\uff09<br \/>\n\u5927\u4f53\u4e0a\u7684\u601d\u8def\u6211\u660e\u767d\u4e86\uff0c\u5c31\u662f\u540c\u4e00\u5f20\u56fe\u7684\u6700\u5c0f\u751f\u6210\u6811\u4e2d\uff0c\u76f8\u540c\u8fb9\u6743\u7684\u8fb9\u7684\u6570\u91cf\u662f\u56fa\u5b9a\u7684\u3002\u6240\u4ee5\u53ea\u8981\u641c\u7d22\u6bcf\u79cd\u8fb9\u6743\u53ef\u80fd\u7684\u7ec4\u5408\u6570\u4e58\u8d77\u6765\u5c31\u597d\u4e86\u3002<br \/>\n\u641c\u7d22\u51fd\u6570\u662f\u8fd9\u6837\u7684\uff1a<br \/>\n[cpp]<br \/>\nint fu = findSet(e.u), fv = findSet(e.v);<br \/>\nif (fu != fv) {<br \/>\n\tfa[fu] = fv;<br \/>\n\tsearch(id, p + 1, step + 1);<br \/>\n\tfa[fu] = fu;<br \/>\n\tfa[fv] = fv;<br \/>\n}<br \/>\nsearch(id, p + 1, step);<br \/>\n[\/cpp]<br \/>\n\u95ee\u9898\u6709\u4e24\u4e2a\uff1a<\/p>\n<ol>\n<li>\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u7528\u8def\u5f84\u538b\u7f29\u5462\uff1f<\/li>\n<li>\u56de\u6eaf\u7684\u65f6\u5019\u4e3a\u4ec0\u4e48\u662ffa[fu] = fu\u800c\u4e0d\u662ffa[e.u] = fu\u5462\uff1f<\/li>\n<\/ol>\n<p>\u7b2c\u4e8c\u4e2a\u95ee\u9898\u5176\u5b9e\u8ddf\u7b2c\u4e00\u4e2a\u4e00\u6837\uff0c\u56e0\u4e3a\u90a3\u4e48\u505a\u4e86\u5c31\u76f8\u5f53\u4e8e\u8def\u5f84\u538b\u7f29\u3002<br \/>\n\u7b2c\u4e00\u4e2a\u95ee\u9898\u5927\u7ea6\u662f\u56e0\u4e3a\u8def\u5f84\u538b\u7f29\u4e86\u5c31\u4e0d\u597d\u56de\u6eaf\u5230\u539f\u6765\u7684\u72b6\u6001\u4e86\u5427\u3002<\/p>\n<h4>Day 8\u00a0[January 3, 2017]<\/h4>\n<div style=\"padding-left: 30px;\">\n<strong>P1017\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1017\">[JSOI2008]\u9b54\u517d\u5730\u56feDotR<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u542c\u8fd9\u540d\u5b57\u50cf\u662f\u6700\u77ed\u8def\u5bf9\u4e0d\u5bf9\uff1f\u4e0d\u8fc7\u8fd9\u5927\u6982\u662fDP\u3002<br \/>\n\u65f6\u95f4\u9650\u523630s\uff0c\u770b\u8d77\u6765\u975e\u5e38\u7684\u8be1\u5f02\u2026\u2026<br \/>\n\u662f\u8fd9\u6837\u7684\uff0c\u53ef\u4ee5\u7528\u91d1\u5e01\u6765\u8d2d\u4e70\u4f4e\u7ea7\u88c5\u5907\uff0c\u7136\u540e\u6709\u4e9b\u88c5\u5907\u53ef\u4ee5\u5408\u6210\u9ad8\u7ea7\u88c5\u5907\uff0c\u6c42M\u4e2a\u91d1\u5e01\u80fd\u591f\u83b7\u5f97\u7684\u6700\u5927\u529b\u91cf\u503c\u3002<br \/>\n\u8fd9\u4e2a\u561b\u2026\u2026\u8bf4\u8d77\u6765\u6709\u70b9\u60f3at\u9009\u8bfe\uff0c\u4e0d\u8fc7\u4e0d\u4e00\u6837\u5462\u3002<br \/>\n\u6ca1\u6709\u9ad8\u7ea7\u88c5\u5907\u7684\u8bdd\uff0c\u90a3\u5c31\u53ea\u662f\u4e00\u4e2a\u666e\u901a\u7684\u591a\u91cd\u80cc\u5305\u3002<br \/>\n\u53ef\u662f\u6709\u4e86\u9ad8\u7ea7\u88c5\u5907&#8230;\u4e5f\u4e0d\u662f\u62c6\u5206\u5f00\u6765\u90a3\u4e48\u7b80\u5355\u7684\u4e8b\u60c5\uff0c\u6570\u91cf\u9650\u5236\u6e90\u4e8e\u4f4e\u7ea7\u88c5\u5907\uff0c\u6bd5\u7adf\u3002\u6709\u53ef\u80fd\u51fa\u4e86A\u88c5\u5907\u548cB\u88c5\u5907\u5c31\u51fa\u4e0d\u4e86C\u88c5\u5907\u8fd9\u6837\u7684\u3002<br \/>\n\u770b\u4e86\u773c<a href=\"http:\/\/vfleaking.blog.163.com\/blog\/static\/17480763420130242646240\/\">vlk\u7684\u535a\u5ba2<\/a>\uff0c\u597d\u795e\u554a\u2026\u2026\u4e0d\u8fc7\u2026\u2026Orz<br \/>\n\u6811\u578bDP\u5417\uff08\u671b\u5929\uff09<br \/>\n\u6211\u8fd8\u662f\u6bd4\u8f83\u559c\u6b22\u8fd9\u79cd<a href=\"http:\/\/www.mamicode.com\/info-detail-1215671.html\">\u7b80\u5355\u7684\u9898\u89e3<\/a>\uff08<\/p>\n<blockquote><p>\u8bbef[i][j][k]\u8868\u793a\u5bf9\u4e8e\u7b2ci\u4e2a\u70b9\uff0c\u5411\u7236\u8282\u70b9\u8d21\u732ej\u4e2a\u5df2\u5408\u6210\u7684\u88c5\u5907\uff0c\u82b1\u8d39\u4e86k\u7684\u4ee3\u4ef7\uff0c\u6700\u591a\u83b7\u5f97\u7684\u529b\u91cf\u503c\u3002<br \/>\n\u90a3\u4e48\u6211\u4eec\u8f6c\u79fb\u65f6\u679a\u4e3e\u4e00\u5171\u8981\u5408\u6210\u51e0\u4e2a\u9053\u5177i\u3002\u7136\u540e\u518d\u505a\u4e2a\u80cc\u5305\uff0c\u5927\u6982\u662f\u524di\u4e2a\u8282\u70b9\u82b1\u8d39\u4ee3\u4ef7\u4e3ak\u6700\u591a\u53ef\u4ee5\u63d0\u5347\u591a\u5c11\u70b9\u529b\u91cf\u503c\u3002<\/p><\/blockquote>\n<p>\u7b80\u5355\u7684\u8bf4\uff0c\u627e\u5230\u6839 \u2014\u2014 \u90a3\u4e2a\u6ca1\u6709\u88ab\u4efb\u4f55\u88c5\u5907\u7528\u4f5c\u7d20\u6750\u7684\u9ad8\u7ea7\u88c5\u5907\u5c31\u662f\u6839\u4e86\u3002<br \/>\n\u7136\u540e\u5f00\u59cbdp\uff0c\u9996\u5148\u662f\u9012\u5f52dp\u540c\u65f6\u6c42\u51fa\u6bcf\u4e2a\u88c5\u5907\u7684limit\u548ccost\uff0c\u7136\u540e\u5c31\u662f\u4e0a\u9762\u8bf4\u7684\u90a3\u6837\u4e86\u3002<br \/>\nexm?\u6211\u6000\u7591\u6570\u636e\u6709\u6bdb\u75c5\u3002<br \/>\n\u8c03\u4e86\u4e00\u4e2a\u65e9\u4e0a\u52a0\u4e00\u8282\u8bfe\uff0c\u5c31\u56e0\u4e3a\u7b54\u6848\u8fd8\u8981\u627e\u4e00\u904d\u6700\u5927\u503c\u800c\u4e0d\u662ff[i][0][m]\u2026\u2026<br \/>\n\u52a0\u4e86\u4e2aassert\u786e\u5b9a\u4e86\uff0c\u6570\u636e\u91cc\u9762\u6709\u957f\u5f97\u4e0d\u662f\u4e00\u4e2a\u6811\u7684\u70b9\u3002\u50bb\u903c\u7ba1\u7406\u5458\u3002\u8279\u3002\u8fd8\u5f97\u52a0\u4e2a\u591a\u91cd\u80cc\u5305\uff08\u53cd\u6b63\u8fd9\u6570\u636e\u76f4\u63a501bp\u5e72\u4e0b\u53bb\u7b97\u4e86\uff09\u3002<br \/>\n\u4e3a\u4ec0\u4e48\u6211\u7684\u8dd1\u4e868k ms\u554aOrz<br \/>\n\u4e3a\u4ec0\u4e48\u524d\u9762\u90a3\u4e9b\u5927\u795e\u90fd\u662f200ms\u554aOrz<br \/>\n\u7b97\u4e86\u5f00\u59cb\u6760\u5386\u53f2\u3002\n<\/p><\/div>\n<h4>Day 9\u00a0[January 4, 2017]<\/h4>\n<div style=\"padding-left: 30px;\">\n<strong>P1018\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1018\">[SHOI2008]\u5835\u585e\u7684\u4ea4\u901atraffic<\/a>\u00a0(Accepted)<\/strong><br \/>\n<a href=\"http:\/\/qkxue.net\/info\/156395\/bzoj-SHOI-traffic-1018-2008\">\u542c\u8bf4<\/a>\u8fd9\u662f\u9053\u7ebf\u6bb5\u6811\u597d\u9898\uff08\u8fdc\u76ee\uff09<br \/>\n<a href=\"http:\/\/qkxue.net\/info\/207612\/SHOI-traffic-2008\">\u542c\u8bf4<\/a>\u8fd9\u9898\u8fd8\u53ef\u4ee5\u5206\u6cbb\u5e76\u67e5\u96c6\uff0c\u90a3\u662f\u5565\uff08\u8fdc\u76ee\uff09<br \/>\n\u7b97\u4e86\u6211\u4e5f\u4e0d\u641e\u4e8b\u60c5\u4e86\uff0c\u60f3\u60f3\u7ebf\u6bb5\u6811\u600e\u4e48\u5199\u3002<br \/>\n\u6700\u540e\u6253\u4e86180\u884c\u7684\u7ebf\u6bb5\u6811\uff0c\u8c03\u4e86\u4e00\u4e2a\u4e0b\u5348\u5e26\u4e00\u4e2a\u665a\u4e0a\uff0c\u4e0d\u7ed9\u6570\u636e\u8981\u6b7b\u3002\n<\/div>\n<h4>Day 10\u00a0[January 5, 2017]<\/h4>\n<div style=\"padding-left: 30px;\">\n<strong>P1019\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1019\">[SHOI2008]\u6c49\u8bfa\u5854<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u6309\u7406\u8bf4\u8fd9\u5176\u5b9e\u662f\u4e00\u9053\u6bd4\u8f83\u6c34\u7684DP\u3002<br \/>\n<strong>P1020\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1020\">[SHOI2008]\u5b89\u5168\u7684\u822a\u7ebfflight<\/a>\u00a0(Suspended)<\/strong><br \/>\n\u601d\u8def\u5927\u6982\u660e\u767d\u4e86\uff0c\u628a\u6bcf\u6761\u201c\u88f8\u9732\u201d\u7684\u7ebf\u6bb5\u62c9\u51fa\u6765\u4e8c\u5206\u3002<br \/>\n\u53ef\u662f\u6211\u8981\u600e\u4e48\u627e\u5230\u90a3\u4e9b\u201c\u88f8\u9732\u201d\u7684\u7ebf\u6bb5\u5462\uff1f<br \/>\n\u8ba1\u7b97\u548c\u6240\u6709\u8fb9\u7684\u4ea4\u70b9\uff1f<br \/>\n\u597d\u50cf\u4e5f\u4e0d\u662f\u4e0d\u884c\uff0c\u6211\u751a\u81f3\u4e0d\u9700\u8981\u77e5\u9053\u54ea\u4e9b\u8fb9\u662f\u9646\u5730\u3002<br \/>\n\u53ef\u662f\u611f\u89c9\u5149\u8fd9\u6837\u5c31\u5f88\u9ebb\u70e6\u4e86\u2026\u2026<br \/>\n<strong>P1021\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1021\">[SHOI2008]Debt \u5faa\u73af\u7684\u503a\u52a1<\/a>\u00a0(Suspended)<\/strong><br \/>\n\u597d\u50cf\u662f\u4e2a\u7b80\u5355\u7684DP\uff0c\u4e0d\u8fc7\u600e\u4e48\u5b9a\u4e49\u72b6\u6001\u5462\u2026\u2026<br \/>\n<strong>P1022\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1022\">[SHOI2008]\u5c0f\u7ea6\u7ff0\u7684\u6e38\u620fJohn<\/a>\u00a0(Suspended)<\/strong><br \/>\n\u5176\u5b9e\u8fd9\u9898\u6211\u8fd8\u60f3\u4e86\u633a\u4e45\u7684\uff08\u8db4\uff09<br \/>\n\u53cc\u65b9\u5747\u4e3a\u6700\u4f18\u7b56\u7565\u7684\u60c5\u51b5\u4e0b\uff0c\u8981\u4e48\u5fc5\u80dc\uff08W\uff09\uff0c\u8981\u4e48\u5fc5\u8d1f\uff08L\uff09\u3002\u4e0b\u9762\u7684A\u548cB\u4ee3\u975e1\u81ea\u7136\u6570\uff0cN\u4ee3\u6240\u6709\u81ea\u7136\u6570\u3002<br \/>\n\u53ea\u6709\u4e00\u5806\u65f6\uff0c1\u662fL\uff0cA\u662fW\uff1b<br \/>\n\u6709\u4e24\u5806\u65f6\uff0c1-N\u662fW\uff0cA-A\u662fL\uff0cA-B\u662fW\uff1b<br \/>\n\u6709\u4e09\u5806\u65f6\uff0c1-1-1\u662fL\uff0c1-1-A\u662fW\uff0cA-A-N\u662fW\uff0cA-B-C\u597d\u50cf\u4e0d\u80fd\u65ad\u8a00\u30021-2-3\u662fL\uff0c\u4f46\u662f1-2-N\uff0c1-3-N\uff0c2-3-N\u90fd\u662fW\u3002\u7136\u540e\u6211\u5c31\u5f00\u59cb\u7ea0\u7ed3\u4e86\u3002<br \/>\n\u6362\u4e2a\u89d2\u5ea6\u770b\u5427\uff0c\u6bd4\u5982\u5168\u90fd\u662f1\uff0c\u5947\u6570\u5806\u5c31\u662fL\uff0c\u5076\u6570\u5806\u5c31\u662fW\u3002<br \/>\n\u7136\u540e\u5462\uff08\u6293\u5934\uff09<br \/>\n<strong>P1023\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1023\">[SHOI2008]cactus\u4ed9\u4eba\u638c\u56fe<\/a>\u00a0(Suspended)<\/strong><br \/>\n\u4ed9\u4eba\u638cDP\uff1f\u665a\u5b89\u3002\n<\/div>\n<h4>Day 11\u00a0[January 6, 2017]<\/h4>\n<div style=\"padding-left: 30px;\">\n<strong>P1024\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1024\">[SCOI2009]\u751f\u65e5\u5feb\u4e50<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u7b80\u5355\u7684DFS\u5c31\u8fc7\u53bb\u4e86\u3002\u679c\u7136\u4e00\u65e9\u4e0a\u8d77\u6765\u78b0\u5230\u6c34\u9898\u5fc3\u60c5\u4f1a\u597d\u4e00\u70b9\u3002<br \/>\n<strong>P1025\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1025\">[SCOI2009]\u6e38\u620f<\/a>\u00a0(Suspended)<\/strong><br \/>\n\u8fd9\u4e1c\u897f\u600e\u4e48\u641e&#8230;<br \/>\n\u7b49\u4ef7\u4e8e\u95ee\u8bb8\u591a\u4e2a\u6570\uff0c\u548c\u4e3an\uff0c\u5b83\u4eec\u7684\u6700\u5c0f\u516c\u500d\u6570\u6709\u591a\u5c11\u79cd\u53ef\u80fd\uff1f<br \/>\n\u4e3a\u5565\u554a\u3002<br \/>\n<strong>P1026\u00a0<a href=\"http:\/\/www.lydsy.com\/JudgeOnline\/problem.php?id=1026\">[SCOI2009]windy\u6570<\/a>\u00a0(Accepted)<\/strong><br \/>\n\u8bf4\u5b9e\u8bdd\uff0c\u6211DP\u5df2\u7ecf\u5199\u5b8c\u4e86\uff0c\u4f46\u662fTM\u5c31\u662f\u7b97\u4e0d\u51fa\u6765\u7b54\u6848&#8230;<br \/>\n\u8fd9\u53eb\u6570\u4f4dDP\u6765\u7740\uff1f\u4f46\u662f\u5c31\u7b97\u6211\u62ff\u7740F\uff0c\u8fd9\u73a9\u610f\u7684\u7ed3\u679c\u600e\u4e48\u7b97\u554a\u3002<br \/>\n\u6298\u817e\u4e86\u534a\u5929\u4e00\u6012\u4e4b\u4e0b\u796d\u51fa\u4e86\u5dee\u5206\u6253\u8868\u3002\u4e0d\u8fc7\u6211\u89c9\u5f97\u6211\u6253\u8868\u6253\u5f97\u6700\u725b\u903c\u7684\u4e00\u6b21\u8fd8\u662f\u90a3\u6b21\u6309\u8d28\u6570\u95f4\u9694\u53cc\u91cd\u6253\u8868\uff08\n<\/div>\n<\/div>\n<h4>Something else<\/h4>\n<div style=\"padding-left: 30px;\">\u8fc7\u4e00\u904d<a href=\"http:\/\/www.cnblogs.com\/lidaxin\/p\/5354305.html\">\u8fd9\u4e9b\u7b97\u6cd5<\/a>\uff1f<\/div>","protected":false},"excerpt":{"rendered":"<p>\u4eca\u5929\u6c5f\u526f\u6821\u957f\u548c\u6bb5\u957f\u548c\u6211\u4eec\u4e09\u4e2a\u8c08\u8bdd\u4e86\uff0c\u653e\u6211\u4e0a\u6765\u6760\u7701\u9009\u3002\u671f\u672b\u8003\u4e0d\u7528\u8003\u3002\u4f1a\u8003\u8981\u8003\uff08\u5012\u657017\u5929\uff09\u3002 \u4e0d\u8fc7\u8bf4\u5b9e\u8bdd21\u5929\u592a\u5c11\u4e86\u3002 \u7ea2\u8272\u9898\u53f7\uff1a\u6ca1\u641e\u5f88\u61c2\u7684\u9898\u3002 Notifications \u4e0d\u8981\u5fd8\u8bb0\u5f00long long int\u3002 \u4e0d\u8981\u5fd8\u8bb0 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/sforest.in\/ja\/fjoi-note\/\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;FJOI\u5012\u657021\u5929&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[71],"class_list":["post-1842","post","type-post","status-publish","format-standard","hentry","category-diary","tag-71"],"_links":{"self":[{"href":"https:\/\/sforest.in\/ja\/wp-json\/wp\/v2\/posts\/1842","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sforest.in\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sforest.in\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sforest.in\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sforest.in\/ja\/wp-json\/wp\/v2\/comments?post=1842"}],"version-history":[{"count":0,"href":"https:\/\/sforest.in\/ja\/wp-json\/wp\/v2\/posts\/1842\/revisions"}],"wp:attachment":[{"href":"https:\/\/sforest.in\/ja\/wp-json\/wp\/v2\/media?parent=1842"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sforest.in\/ja\/wp-json\/wp\/v2\/categories?post=1842"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sforest.in\/ja\/wp-json\/wp\/v2\/tags?post=1842"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}