{"id":484,"date":"2012-10-02T11:12:44","date_gmt":"2012-10-02T03:12:44","guid":{"rendered":"http:\/\/www.shuizilong.com\/house\/?p=484"},"modified":"2012-10-06T02:27:18","modified_gmt":"2012-10-05T18:27:18","slug":"neerc-southern-subregional-2006","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/house\/archives\/neerc-southern-subregional-2006\/","title":{"rendered":"NEERC Southern Subregional 2006"},"content":{"rendered":"

SGU 315 ~ 325<\/p>\n

Problem A. The Highway Belt
\n\u7ed9\u5b9a\u4e00\u7ec4\u5e73\u9762\u7ebf\u6bb5\uff0c\u6c42\u4ece\u4e2d\u80fd\u5f97\u5230\u5468\u957f\u6700\u957f\u7684 “\u661f\u72b6\u7ebf”\u3002
\n\uff08\u65e2\u5305\u56f4\u539f\u70b9\uff0c\u4e14\u4e0e\u4ece\u539f\u70b9\u51fa\u53d1\u7684\u6bcf\u4e00\u6761\u5c04\u7ebf\u6709\u4e14\u4ec5\u6709\u4e00\u4e2a\u4ea4\u70b9\u3002\u3002\u3002
\nTags: \u8ba1\u7b97\u51e0\u4f55, DP
\nhttp:\/\/acm.hust.edu.cn:8080\/judge\/contest\/viewSource.action?id=701534<\/a>
\n\u5148\u8ba1\u7b97\u51e0\u4f55\u6c42\u51fa\u6240\u6709\u4ea4\u70b9\uff0c\u548c\u6240\u6709\u4ea4\u70b9\u7684\u90bb\u63a5\u8868\u3002\u3002\uff08\u65b9\u6cd5\u7c7b\u4f3c Areas<\/a>\u3002\u3002
\n\u3002\u3002\u518d\u679a\u4e3e\u8d77\u59cb\u70b9\u3002\u3002\uff08\u65e2\u6240\u6709\u7ebf\u6bb5\u540c x \u8f74\u6b63\u65b9\u5411\u7684\u4ea4\u70b9\uff0c
\n\u3002\u6cbf\u7740 [0, 2pi) \u7684\u5e45\u89d2\u505a\u5e38\u89c4\u52a8\u6001\u89c4\u5212\u5373\u53ef\u3002\u3002<\/p>\n

<\/p>\n

Problem B. Code Tanks
\nSB \u6a21\u62df\uff0c\u7565\u3002\u3002\uff09
\nhttp:\/\/acm.hust.edu.cn:8080\/judge\/contest\/viewSource.action?id=718172<\/a><\/p>\n

Problem C. Fast Ride
\nx \u8f74\u4e0a\u5206\u5e03\u7740 n \u4e2a\u9a7f\u7ad9 \uff0c\u6bcf\u4e2a\u9a7f\u7ad9\u6709\u4e00\u4e9b\u9a6c\uff0c\u7ed9\u5b9a\u9a6c\u7684\u901f\u5ea6\u548c\u6700\u5927\u8ddd\u79bb\uff0c
\n\u95ee\u4ece 0 \u70b9\u51fa\u53d1\uff0c\u5230 b \u70b9\u7684\u6700\u77ed\u65f6\u95f4\u3002\uff08\u79fb\u52a8\u65f6\u770b\u505a\u5300\u901f\u8fd0\u52a8\u3002\u3002\u603b\u7684\u9a6c\u6570\u4e3a m\u3002\u3002
\nTags\uff1a\u52a8\u6001\u89c4\u5212, \u8d2a\u5fc3
\n\u5bf9\u6bcf\u4e2a\u9a7f\u7ad9\uff0c\u7ef4\u62a4\u4e00\u4e2a\u8ddd\u79bb\u9012\u589e\u3001\u901f\u5ea6\u9012\u51cf\u7684\u5e8f\u5217\uff0c\u5c3d\u91cf\u4f7f\u7528\u901f\u5ea6\u5927\u7684\u9a6c\u5411\u540e\u66f4\u65b0\u5373\u53ef\u3002
\n\u590d\u6742\u5ea6\u4e3a O(n + m)\u3002
\nhttp:\/\/acm.hust.edu.cn:8080\/judge\/contest\/viewSource.action?id=717063<\/a><\/p>\n

Problem D. Grants
\n\u7ed9\u5b9a n \u4e2a\u4eba\u548c m \u4e2a\u8d44\u6e90\uff0c\u6bcf\u4e2a\u4eba\u6709\u4e00\u4e2a\u9700\u6c42\u8d44\u6e90\u7684\u5217\u8868\u3002
\n\u8981\u6c42\u5bf9\u8d44\u6e90\u5212\u5206\u6210\u6700\u5c11\u7684\u7ec4\uff0c\u4f7f\u5f97\u6bcf\u4e2a\u4eba\u90fd\u53ef\u4ee5\u5206\u914d\u5230\u82e5\u5e72\u4e2a\u7ec4\uff0c\u4f7f\u5f97\u5176\u83b7\u5f97\u7684\u8d44\u6e90\u6070\u597d\u662f\u5176\u6240\u9700\u8981\u7684\u3002
\nTags\uff1a\u5e76\u67e5\u96c6
\n\u3002\u3002\uff08\u5bf9\u65e0\u9700\u6c42\u7684\u8d44\u6e90\u76f4\u63a5\u5ffd\u7565\u5373\u53ef\u3002
\nhttp:\/\/acm.hust.edu.cn:8080\/judge\/contest\/viewSource.action?id=717361<\/a>
\nQ: \u77e9\u5f62\u5207\u5272\u600e\u4e48\u505a\uff1f\u3002
\nhttp:\/\/hi.baidu.com\/wjbzbmr\/item\/90e0eef95dcc5c7f3d198ba4<\/a><\/p>\n

Problem E. Kalevich Strikes Back
\n\u3002\u3002\u7ed9\u5b9a n \u4e2a\u77e9\u5f62\uff0c\u4fdd\u8bc1\u4e92\u4e0d\u76f8\u4ea4\u3002\u3002\u95ee\u6bcf\u4e2a\u77e9\u5f62\u88ab\u8986\u76d6\u540e\u7684\u5269\u4f59\u9762\u79ef\u3002
\nTags\uff1a\u8ba1\u7b97\u51e0\u4f55\uff0c\u626b\u63cf\u7ebf
\n\u62bd\u8c61\u540e\u53ef\u4ee5\u5c06\u6bcf\u4e2a\u77e9\u5f62\u770b\u6210\u4e00\u4e2a\u7ed3\u70b9\uff0c\u4e8e\u662f\u6574\u526f\u56fe\u89c6\u4e3a\u4e00\u9897\u6811\u5f62\u7ed3\u6784\uff0c
\n\u7528\u626b\u63cf\u7ebf+\u7ebf\u6bb5\u6811\u6c42\u51fa\u6bcf\u4e2a\u77e9\u5f62\u7684\u76f4\u63a5\u540e\u7ee7\uff0c\u7ebf\u6bb5\u6811\u7684\u6bcf\u4e2a\u7ed3\u70b9\u4fdd\u5b58\u4e00\u4e2a\u6808\u3002\u3002\u5728\u67e5\u8be2\u7684\u65f6\u5019\u5bfb\u627e\u6700\u665a\u8986\u76d6\u4e0a\u53bb\u7684\u3002\u3002\u3002
\n\u3002\u3002\u7ebf\u6bb5\u6811\u3001\u6808 \u3002\u3002\u3002\uff0818507 KB\u3002\u3002312 ms\u3002\u3002<\/a>
\nhttp:\/\/blog.csdn.net\/flying_stones_sure\/article\/details\/8036864<\/a>
\nQ\uff1a\u77e9\u5f62\u5207\u5272\u80fd\u505a\u4e48\uff1f\u3002\uff08\u3002\u3002
\n.. .<\/a><\/p>\n

\u2014\u2014\u2014 UPD \u2014\u2014
\nxlk \u7684\u5b9e\u73b0\u3002\u3002\uff08Set, Split, 200ms +-\u3002\u3002<\/a>
\n( \u3002\u3002\u65e0\u9650\u4ef0\u6155\u4e4b\u3002\u3002\u66f4\u597d\u7684\u505a\u6cd5\u662f\u7528 set \u7ef4\u62a4\u7ebf\u6bb5\uff0c\u63d2\u5165\u7684\u65f6\u5019\u4ece\u8986\u76d6\u5904\u7684\u7ebf\u6bb5 Split \u51fa\u6765\u4e00\u4e2a\u5c0f\u7684\u3002\u3002\u5220\u9664\u7684\u65f6\u5019\u518d\u539f\u6837\u8fd8\u539f\u56de\u53bb\u3002\u3002
\n\uff08\u3002\u3002\u597d\u5904\u662f\u4e0d\u9700\u8981\u79bb\u6563\u5316\uff0c\u800c\u4e14\u4ee3\u7801\u957f\u5ea6\u7b80\u5355\u66b4\u529b\u3002\u3002
\n\uff08\u3002\u6ce8\u610f\uff1a\u5220\u9664\u64cd\u4f5c\u540e\u8fed\u4ee3\u5668\u7684\u5185\u5bb9\u65e0\u6cd5\u5f97\u5230\u4fdd\u8bc1\u3002\u3002\u9700\u8981\u7f13\u5b58\u4e4b\u3002\u3002<\/p>\n

Problem F. The Influence of the Mafia
\n\uff08\u5751\u3002<\/p>\n

Problem G. The Spy Network
\n\u7ed9\u5b9a\u4e00\u4e2a\u6811\uff0c\u5bf9\u8fb9\u8fdb\u884c\u9ed1\u767d\u67d3\u8272\uff0c\u8981\u6c42\u4f7f\u5f97\u4efb\u610f\u4e00\u70b9\u5230\u6839\u8282\u70b9\u7684\u8def\u5f84\u4e0a\u90fd\u6709\u4e00\u534a\u4ee5\u4e0a\u7684\u8fb9\u662f\u9ed1\u8272\u3002
\n\u6c42\u81f3\u5c11\u8fd8\u9700\u8981\u67d3\u9ed1\u591a\u5c11\u6761\u767d\u8fb9\u3002
\nTags: \u8d2a\u5fc3\uff0c\u6811\u5f62 DP
\n\u5c3d\u53ef\u80fd\u5bf9\u9760\u8fd1\u6839\u90e8\u7684\u8fb9\u67d3\u8272\u3002
\n\uff08\u4e24\u6b21 dfs()\u3002\u3002<\/a>
\n\uff08\u4e00\u6b21 dfs()\u3002\u3002<\/a><\/p>\n

Problem H. The Great Union
\nProblem I. Aviamachinations
\nProblem J. The Text Formatting
\nProblem K. Palindrome
\n.. .<\/p>\n

External link: <\/h3>\n

http:\/\/acm.hust.edu.cn:8080\/judge\/contest\/view.action?cid=8194#overview<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

SGU 315 ~ 325 Problem A. The Highway Belt \u7ed9\u5b9a\u4e00\u7ec4\u5e73\u9762\u7ebf\u6bb5\uff0c\u6c42\u4ece\u4e2d\u80fd\u5f97\u5230\u5468\u957f\u6700\u957f\u7684 “\u661f\u72b6\u7ebf”\u3002 \uff08\u65e2\u5305\u56f4\u539f\u70b9\uff0c\u4e14\u4e0e\u4ece\u539f\u70b9\u51fa\u53d1\u7684\u6bcf\u4e00\u6761\u5c04\u7ebf\u6709\u4e14\u4ec5\u6709\u4e00\u4e2a\u4ea4\u70b9\u3002\u3002\u3002 Tags: \u8ba1\u7b97\u51e0\u4f55, DP http:\/\/acm.hust.edu.cn:8080\/judge\/contest\/viewSource.action?id=701534 \u5148\u8ba1\u7b97\u51e0\u4f55\u6c42\u51fa\u6240\u6709\u4ea4\u70b9\uff0c\u548c\u6240\u6709\u4ea4\u70b9\u7684\u90bb\u63a5\u8868\u3002\u3002\uff08\u65b9\u6cd5\u7c7b\u4f3c Areas\u3002\u3002 \u3002\u3002\u518d\u679a\u4e3e\u8d77\u59cb\u70b9\u3002\u3002\uff08\u65e2\u6240\u6709\u7ebf\u6bb5\u540c x \u8f74\u6b63\u65b9\u5411\u7684\u4ea4\u70b9\uff0c \u3002\u6cbf\u7740 [0, 2pi) \u7684\u5e45\u89d2\u505a\u5e38\u89c4\u52a8\u6001\u89c4\u5212\u5373\u53ef\u3002\u3002<\/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":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[61],"tags":[],"class_list":["post-484","post","type-post","status-publish","format-standard","hentry","category-sgu"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2tdP7-7O","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/484","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=484"}],"version-history":[{"count":1,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/484\/revisions"}],"predecessor-version":[{"id":495,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/484\/revisions\/495"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/media?parent=484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/categories?post=484"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/tags?post=484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}