{"id":381,"date":"2018-11-09T07:20:35","date_gmt":"2018-11-08T23:20:35","guid":{"rendered":"http:\/\/SmokeyDays.top\/wordpress\/?p=381"},"modified":"2018-11-13T23:23:05","modified_gmt":"2018-11-13T15:23:05","slug":"noip2018%e6%b8%b8%e8%ae%b0","status":"publish","type":"post","link":"http:\/\/SmokeyDays.top\/wordpress\/2018\/11\/09\/noip2018%e6%b8%b8%e8%ae%b0\/","title":{"rendered":"NOIP2018\u6e38\u8bb0"},"content":{"rendered":"

\\(Day0\\)\uff1a
\n\u4eca\u5929\u5e94\u8be5\u662f\u8981\u770b\u8003\u573a\u7684\u3002
\n\u65e9\u4e0a\u6ca1\u6709\u8bad\u7ec3\u3002\u5728\u673a\u623f\u8db4\u7740\u7761\u5230\u4e86\u4e5d\u70b9\u591a\u3002\u7136\u540e\u8d77\u6765\u5212\u6c34\u5230\u4e86\u5341\u4e00\u70b9\u591a\u3002
\n\u4e2d\u5348\u5403\u5b8c\u996d\u56de\u6765\u5728\u673a\u623f\u548c\u4e24\u4e2a\u540c\u5b66\u4e00\u8d77\u5237\u77e5\u4e4e\uff0c\u7136\u540e\u8865\u756a\u5230\u4e00\u534a\u53c8\u5f00\u59cb\u590d\u4e60\u6570\u8bba\u3002\u63a5\u7740\u770b\u5230\u4e86\u4e00\u9053\u201c\u597d\u201d\u9898\uff0c\u5c31\u548c\u540c\u5b66\u4e00\u8d77\u53e3\u80e1\u4e86\u4e00\u4e0b\u3002
\n\u7136\u540e\u4e0a\u53bb\u8bd5\u673a\uff0c\u5f00\u59cb\u6253\u4e4b\u524d\u770b\u5230\u7684\u90a3\u9053\u9898\uff0c\u4f46\u662f\u6ca1\u6253\u5b8c\u8bd5\u673a\u5c31\u7ed3\u675f\u4e86\u3002\u7136\u540e\u4e0b\u697c\u4ee5\u540e\u7ee7\u7eed\u5f00\u5fc3debug\uff0c\u4f46\u662f\u8fd8\u662f\u6ca1\u6709\u5f04\u51fa\u6765\u3002\u56de\u5230\u5bbf\u820d\u4ee5\u540e\u7ee7\u7eed\u5f00\u5fc3debug\uff0c\u7ec8\u4e8e\u8c03\u51fa\u6765\u4e86\u3002\u771f\u662f\u4e00\u9053\u4e27\u9898\u3002
\n\u5bf9\uff0c\u6211\u8bf4\u7684\u5c31\u662fNOI2004 \u90c1\u95f7\u7684\u51fa\u7eb3\u5458<\/a>\u3002
\n\uff08\u8bdd\u8bf4\u8c03\u5230\u4e00\u534a\u8c03\u4e0d\u4e0b\u53bb\u4e86\uff0c\u770b\u4e86\u4e00\u96c6\u300c\u9ec4\u91d1\u62fc\u56fe\u300d\uff0c\u7136\u540e\u56de\u6765\u5c31\u8c03\u51fa\u6765\u4e86\uff0c\u613f\u5409\u8001\u5e08\u8d50\u4e88\u6211\u529b\u91cf\uff08\u5927\u96fe\uff09\uff09<\/p>\n

\\(Day1\\)\uff1a
\nT1\u5927\u6c34\u9898\uff0cT2\u6709\u70b9\u5c0f\u5751\uff0c\u4ee5\u4e3a\u662f\u6570\u8bba\u7ed3\u679c\u5199\u4e86\u6b63\u89e3\u601d\u8def\u81ea\u5df1\u4ee5\u4e3a\u662f\u66b4\u529b\uff0cT3\u7ed9\u4e86\u5f88\u591a\u90e8\u5206\u5206\u7136\u540e\u62ff\u90e8\u5206\u5206\u7684\u65f6\u5019\u60f3\u5230\u6b63\u89e3\u6765\u4e0d\u53ca\u6253\uff08\u4e5f\u6253\u4e0d\u51fa\u6765\uff09\u3002
\n\u611f\u89c9\u8fd9\u573a\u6709\u70b9\u6c34\uff0c\u5927\u5bb6\u90fd\u8003\u5f97\u5f88\u9ad8\uff0c\u6211\u4f30\u5206\u597d\u50cf\u4e5f\u6bd4\u8f83\u9ad8\uff0c\u6211\u89c9\u5f97\u6709\u70b9\u65b9\u3002\u4e3b\u573a\u4f5c\u6218\u4e5f\u662f\u6709\u4f18\u52bf\u7684\uff0c\u4e0a\u5395\u6240\u8c03\u6574\u601d\u8def\u771f\u662f\u8d85\u6709\u7528\u7684\u3002
\n\u5927\u6982\u5c31\u662f\u8fd9\u6837\u3002
\n\u4eca\u5929\u5e76\u6ca1\u6709\u89c1\u5230\u67d0\u4e2a\u559c\u6b22\u505a\u5f88\u591a\u4e8b\u60c5\u7684\u5973\u5b69\u5b50\uff0c\u5e0c\u671b\u660e\u5929\u4e5f\u4e0d\u8981\u89c1\u5230\u3002\uff08\u5927\u96fe\uff09
\n\u8bdd\u8bf4\u6253\u5f00\u7a7a\u95f4\u624d\u53d1\u73b0\u660e\u5929\u7adf\u7136\u662f\u53cc\u5341\u4e00\u3002\u867d\u7136\u5728\u5e7f\u544a\u4e2d\u6709\u770b\u5230\u4f46\u662f\u597d\u50cf\u6ca1\u6709\u5b9e\u611f\u7684\u6837\u5b50\u3002<\/p>\n

\\(Day2\\)\uff1a
\n\u4ee4\u4eba\u6b23\u6170\u7684\u662f\uff0c\u4eca\u5e74\u771f\u7684\u6ca1\u6709\u90a3\u4f4d\u5973\u5b69\u5b50\u3002\u800c\u4e14\u672c\u4eba\u5728\u7fa4\u91cc\u8bf4\u4e86\u5e76\u6ca1\u6709\u53c2\u4e0e\u51fa\u9898\uff0c\u592a\u723d\u4e86\u3002
\n\u4eca\u5929\u7684\u9898\u6bd4\u6628\u5929\u4e0d\u77e5\u9053\u4e27\u5230\u54ea\u91cc\u53bb\u4e86\u3002\u4f20\u8bf4\u4eca\u5e74\u7684\u9898\u5b58\u5728\u4e00\u4e2a\u53eb\u505a\u65f6\u95f4-\u96be\u5ea6\u4e0d\u7b49\u5f0f\u7684\u4e1c\u897f\uff0c\u5c45\u7136\u662f\u771f\u7684\u2014\u2014
\n$$ D_{1}T_{1}<D_{1}T_{2}<D_{1}T_{3}<D_{2}T_{1}<D_{2}T_{2}<D_{2}T_{3} $$
\n\u8bd5\u5377\u7684\u89e3\u538b\u5bc6\u7801\u662f\u300c\u7b11\u4e66\u795e\u4fa0\u300d\uff0c\u4ed4\u7ec6\u60f3\u60f3\u6628\u5929\u7684\u89e3\u538b\u5bc6\u7801\u662f\u300c\u98de\u96ea\u8fde\u5929\u300d\u3002\u83ab\u540d\u95f4\u4e00\u9635\u4f24\u611f\u3002
\nT1\u548c\u6211\u51fa\u8fc7\u7684\u67d0\u4e00\u9053\u9898\u975e\u5e38\u795e\u4f3c\uff0c\u90fd\u662f\u5728\u6c42\u4e00\u4e9b\u7279\u5b9a\u7684\\(DFS\\)\u5e8f\u3002\u5c31\u8fde\u5bf9\\(DFS\\)\u7684\u63cf\u8ff0\u4e5f\u548c\u6211\u7684\u63cf\u8ff0\u975e\u5e38\u76f8\u4f3c\u3002
\n\u6240\u4ee5\u5728\u8003\u573a\u4e0a\u6211\u7528\u4e86\u51e0\u5206\u949f\u7684\u65f6\u95f4\u6982\u62ec\u51fa\u4e86\u7b80\u8981\u9898\u9762\uff0c\u7136\u540e\u7528\u4e86\u5341\u5206\u949f\u5199\u6389\u4e86\u3002
\nT2\u548cT3\u7b80\u76f4\u4e27\u5fc3\u75c5\u72c2\u3002
\nT2\u6211\u4e00\u5f00\u59cb\u4ee5\u4e3a\u662f\u4e00\u9053\u7ed3da\u8bbabiao\u9898\uff0c\u7136\u540e\u5c31\u5199\u4e86\u4e2a\u66b4\u529b\u786c\u4e0a\u3002\u6253\u4e86\u4e00\u5f205*6\u7684\u8868\u683c\uff0c\u7136\u540e\u627e\u89c4\u5f8b\u63a8\u4e86\\(65\\)\u5206\u7684\u516c\u5f0f\u51fa\u6765\uff1b
\n\u5f88\u5bb9\u6613\u53ef\u4ee5\u53d1\u73b0\u4e24\u4e2a\u5b9a\u7406\uff1a
\n\u4e00\uff1a\u5bf9\u4e8e\u4e00\u4e2a\u70b9\uff0c\u5982\u679c\u5b83\u7684\u5de6\u4e0b\u65b9\u662f0\uff0c\u90a3\u4e48\u5b83\u5c31\u4e0d\u53ef\u80fd\u662f\u4e00\u3002
\n\u4e8c\uff1a\u5bf9\u4e8e\u4e00\u6761\u5de6\u4e0b-\u53f3\u4e0a\u7684\u659c\u7ebf\u6bb5\uff0c\u5982\u679c\u5b83\u7684\u989c\u8272\u4e00\u6837\uff0c\u90a3\u4e48\u4f4d\u4e8e\u5b83\u53f3\u4e0b\u65b9\u7684\u6240\u6709\u659c\u7ebf\u6bb5\u989c\u8272\u90fd\u5fc5\u987b\u4e00\u6837\u3002
\n\u90a3\u4e48\u6211\u4eec\u5c31\u53ef\u4ee5\u8003\u8651\\(DP\\)\uff0c\u5177\u4f53\u6765\u8bf4\uff0c\u5c31\u662f\uff0c\u8bb0\u6bcf\u4e00\u6761\u659c\u7ebf\u7684\\(0-1\\)\u5206\u754c\uff0c\u7136\u540e\u4ece\u5de6\u4e0a\u5f80\u53f3\u4e0b\u8f6c\u79fb\u3002
\nT3\u5148\u662f\u5199\u4e86\u94fe\u7684\u90e8\u5206\uff0c\u4e00\u5f00\u59cb\u601d\u8def\u9519\u4e86\uff0c\u662f\u628a\u5e8f\u5217\u62c6\u6210\u4e09\u4e2a\u90e8\u5206\u7136\u540e\u5206\u522b\u5904\u7406\u5e76\u4e14\u5408\u5e76\uff0c\u5199\u4e86\u4e00\u4e2a\u4e09\u5341\u591a\u884c\u7684\u8f6c\u79fb\u3002\u7136\u540e\u4e0a\u4e86\u4e00\u4e0b\u5395\u6240\u56de\u6765\u53d1\u73b0\u81ea\u5df1\u7b80\u76f4\u662f\u667a\u969c\uff0c\u5176\u5b9e\u5c31\u662f\uff0c\u628a\u300c\u8981\u6c42\u653e\u7684\u5730\u65b9\u7684\u82b1\u8d39\u8bbe0\uff0c\u4e0d\u8981\u6c42\u653e\u7684\u5730\u65b9\u82b1\u8d39\u8bbe\u65e0\u7a77\u5927\u300d\u3002\u7136\u540e\u5176\u5b9e\u5c31\u53d8\u6210\u6c42\u5e26\u6743\u6811\u4e0a\u8986\u76d6\u96c6\u3002\u8fd9\u79cd\u505a\u6cd5\u7684\u590d\u6742\u5ea6\u662f\\(O(n*m)\\)\u7684\u3002\u5982\u679c\u8db3\u591f\u806a\u660e\u4f60\u5c31\u4f1a\u53d1\u73b0\uff0c\u5176\u5b9e\u5728\u6c42\u51fa\u521d\u59cb\u82b1\u8d39\u4e4b\u540e\uff0c\u6bcf\u4e00\u6b21\u8be2\u95ee\u9020\u6210\u7684\u5f71\u54cd\u53ea\u4f1a\u5f71\u54cd\u4ece\u8fd9\u4e00\u4e2a\u70b9\u5230\u6839\u7684\u4e00\u6574\u6761\u94fe\u3002\u6240\u4ee5\u627e\u5230\u6811\u7684\u91cd\u5fc3\u4e4b\u540e\u7528\u8fd9\u79cd\u65b9\u6cd5\u66f4\u65b0\uff0c\u53ef\u80fd\u53ef\u4ee5\u7f29\u5c0f\u5e38\u6570\u3002
\n\u603b\u4e4bT2\u3001T3\u6211\u5230\u73b0\u5728\u90fd\u4e0d\u4f1a\u5199\u6b63\u89e3\u3002
\n\u8003\u8bd5\u5269\u4e0b\u4e94\u5206\u949f\u7684\u65f6\u5019\u611f\u89c9\u8fd8\u4e0d\u9519\uff0c\u53ef\u80fd\u4eca\u5929\u53ef\u4ee5\u62ff\\(233\\)\u5206\u3002\u7ed3\u679c\u6d4b\u4e00\u4e0b\u5927\u6837\u4f8b\u53d1\u73b0\u6211T3\u7684\u66b4\u529b\u5199\u6302\u4e86\u3002\u6240\u4ee5\u5c31\u4e0d\u77e5\u9053\u4f1a\u70b8\u6210\u4ec0\u4e48\u6837\u4e86\u3002
\n\u51fa\u6765\u4ee5\u540e\u5728\u8003\u573a\u95e8\u53e3\u5408\u4e86\u4e2a\u5f71\uff0c\u7136\u540e\u5c31\u5f00\u59cb\u6109\u5feb\u5212\u6c34\u4e86\u3002
\n\uff08\u5c3d\u7ba1\u660e\u5929\u9700\u8981\u671f\u4e2d\u8003qwq\uff09
\n\u9898\u76ee\u89e3\u6790\uff1a
\n\u89e3\u6790\u4ec0\u4e48\u7684…\u4e0d\u5b58\u5728\u768423333
\n\u795d\u5927\u5bb6RP++<\/del>
\nNOIP2018 D1T1\u94fa\u8bbe\u9053\u8def<\/a>
\nNOIP2018 D1T2\u8d27\u5e01\u7cfb\u7edf<\/a>
\nNOIP2018 D1T3\u8d5b\u9053\u4fee\u5efa<\/a>
\nNOIP2018 D2T1\u65c5\u884c<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\\(Day0\\)\uff1a \u4eca\u5929\u5e94\u8be5\u662f\u8981\u770b\u8003\u573a\u7684\u3002 \u65e9\u4e0a\u6ca1\u6709\u8bad\u7ec3\u3002\u5728\u673a\u623f\u8db4\u7740\u7761\u5230\u4e86\u4e5d\u70b9\u591a\u3002\u7136\u540e\u8d77\u6765\u5212\u6c34\u5230\u4e86\u5341\u4e00\u70b9\u591a\u3002 … <\/p>\n

\u7ee7\u7eed\u9605\u8bfb\u201cNOIP2018\u6e38\u8bb0\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[],"_links":{"self":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/381"}],"collection":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/comments?post=381"}],"version-history":[{"count":22,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/381\/revisions"}],"predecessor-version":[{"id":440,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/381\/revisions\/440"}],"wp:attachment":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/media?parent=381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/categories?post=381"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/tags?post=381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}