{"id":472,"date":"2012-09-11T17:36:50","date_gmt":"2012-09-11T09:36:50","guid":{"rendered":"http:\/\/www.shuizilong.com\/house\/?p=472"},"modified":"2012-09-11T19:51:27","modified_gmt":"2012-09-11T11:51:27","slug":"codechef-september-challenge-2012","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/house\/archives\/codechef-september-challenge-2012\/","title":{"rendered":"CodeChef September Challenge 2012"},"content":{"rendered":"<p>8.03 \/ 10 &#8230;<\/p>\n<p>\u3002\u3002\u3002\u4f3c\u4e4e\u672c\u6708\u9898\u76ee\u7684\u6574\u4f53\u8d28\u91cf\u6709\u6240\u4e0b\u964d\uff1f\u3002\u3002\u3002\u3002<br \/>\n\u4e0d\u8fc7 Knight Moving &#038;&#038; Annual Parade \u5bf9\u6211\u6765\u8bf4\u8fd8\u662f\u5341\u5206\u56f0\u96be\u3002\u3002\uff09<br \/>\n\uff08\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u8bf4 Knight Moving \u5bf9\u6211\u6765\u8bf4\u66f4\u52a0\u56f0\u96be\u3002\u3002\u3002<\/p>\n<p><!--more--><\/p>\n<h3>Level 1: <\/h3>\n<p>Racing Horses:<br \/>\n\u7b7e\u5230\u9898\uff0c\u7565\u3002<\/p>\n<p>Kisses &#038; Hugs: \u6570\u5217<br \/>\n\u5f00\u59cb\u9519\u63a8\u6210 <a href=\"http:\/\/oeis.org\/A002620\">http:\/\/oeis.org\/A002620<\/a><br \/>\n\u3002\u3002\u3002\u540e\u6765\u53d1\u73b0\u9898\u76ee\u8bfb\u7684\u4e0d\u5bf9\u3002\u3002\u6240\u4ee5\u5e94\u8be5\u662f\u8fd9\u4e2a\u3002\u3002<a href=\"http:\/\/oeis.org\/A027383\">http:\/\/oeis.org\/A027383<\/a><\/p>\n<p>Three is Crowd: \u6570\u5217\u3002\u3002<br \/>\n<a href=\"http:\/\/oeis.org\/A050231\">http:\/\/oeis.org\/A050231<\/a><br \/>\n\u53d6\u8865\u96c6\u540e\u5f97\u5230 Tribonacci\u3002\u3002\u4e4b\u540e\u77e9\u9635\u4e58\u3002\u3002<\/p>\n<p>Chef World\uff1a\u6570\u5217\u3002\u3002\u3002\u3002<br \/>\n\u5148\u5199\u4e86\u4e2a\u66b4\u529b\u3002\u3002\u3002<a href=\"http:\/\/paste.ubuntu.com\/1185570\/\">http:\/\/paste.ubuntu.com\/1185570\/<\/a><br \/>\nF[n] = 0, 5, 18, 44, 96, 195, 380, 719, 1332 ..<br \/>\n\u53d1\u73b0 OEIS \u91cc\u9762\u6ca1\u6709\u8bb0\u8f7d\u3002\u3002\u3002\u3002\u3002\u3002<br \/>\n<a href=\"http:\/\/math.stackexchange.com\/questions\/190586\/summation-of-series-of-product-of-fibonacci-numbers\">\u624b\u63a8\u540e\u5f97\u5230&#8230;\u4e00\u4e2a\u56db\u9636\u7ebf\u6027\u9012\u63a8\u6570\u5217\u3002\u3002<\/a>\uff08\u5e38\u6570\u6ce8\u610f\u3002\u3002<br \/>\n\uff08\u5e38\u6570\u4f18\u5316\u4e24\u5904\u3002\u3002\u4e00\u4e2a\u662f\u77e9\u9635\u4e58\u6cd5\u91cc\u9762\u3002\u53e6\u4e00\u4e2a\u662f\u5148\u9884\u5904\u7406\u51fa\u6240\u6709 A \u7684 k \u6b21\u5e42\u3002\u3002<\/p>\n<p>ChefTown Parade: \u7ed9\u5b9a\u4e00\u4e2a\u6392\u5217\uff0c\u95ee\u5176\u4e2d\u8fde\u7eed k \u9879\u6392\u5e8f\u540e\u6070\u597d\u5e03\u6ee1\u4e00\u4e2a\u957f\u5ea6\u4e3a k \u7684\u533a\u95f4\u7684\u533a\u95f4\u6570\u3002\u3002<br \/>\n\u3002\u3002\u6ce8\u610f nlogn \u7684\u7b97\u6cd5\u4f1a TLE \u3002\u7a0d\u4f5c\u6574\u7406\u540e\u53ef\u4ee5\u5f97\u5230\u4e00\u4e2a\u57fa\u4e8e\u5355\u8c03\u961f\u5217\u7684\u7b97\u6cd5\u3002<\/p>\n<p>Queries About Numbers: \u6570\u8bba\u3002\u3002<br \/>\n\u3002\u7b2c\u4e8c\u95ee\u548c\u7b2c\u4e09\u95ee\u662f\u5bf9\u79f0\u7684\u3002\u3002\u56e0\u5f0f\u5206\u89e3\u5373\u53ef\u3002\u3002<\/p>\n<p>Lights\uff1a\u3002\u3002\u5199\u4e86\u4e00\u4e2a\u66b4\u529b\u4e8c\u5206\u3002\u3002\u5c45\u7136\u8fc7\u4e86\u3002\uff08\u6c42\u66f4\u597d\u7b97\u6cd5\u3002\u3002\u3002<\/p>\n<h3>Level 2: <\/h3>\n<p>Annual Parade:<br \/>\n\u7ed9\u5b9a\u4e00\u526f\u6709\u5411\u56fe\uff0c\u6bcf\u6761\u8fb9\u6709\u4e00\u4e2a\u6743\u503c\uff0c\u8981\u6c42\u7528\u82e5\u5e72\u4e2a\u8def\u5f84\u548c\u73af\u5bf9\u56fe\u8fdb\u884c\u8986\u76d6\uff0c\u6bcf\u6761\u8fb9\u53ef\u4ee5\u4f7f\u7528\u4efb\u610f\u591a\u6b21\u3002\u3002<br \/>\n\u6ca1\u6709\u8986\u76d6\u7684\u70b9\u4ea7\u751f\u989d\u5916\u7684 C \u4ee3\u4ef7\uff0c\u5982\u679c\u662f\u8def\u5f84\u5219\u4e5f\u8981\u4ea7\u751f\u989d\u5916\u7684 C \u4ee3\u4ef7\u8fdb\u884c\u8fd4\u56de\u3002\u3002<br \/>\n\u73b0\u5728\u5171 T \u7ec4\u8be2\u95ee\uff0c\u5bf9\u6bcf\u7ec4\u8be2\u95ee\u4e0d\u540c\u7684 C \u503c\u3002\u3002\u8fd4\u56de\u6700\u5c0f\u4ee3\u4ef7\u3002<br \/>\n\u2014\u2014\u2014\u2014\u2014\u2014<br \/>\n\u611f\u5230\u8fd9\u91cc\u7684 C \u5f88\u4e0d\u81ea\u7136\uff0c\u7b2c\u4e00\u5370\u8c61\u662f\u6700\u5927\u6743\u95ed\u5408\u5b50\u56fe\uff0c\u4e8e\u662f\u5f00\u59cb\u5c1d\u8bd5\u7f51\u7edc\u6d41\u5efa\u6a21\uff0c\u4e0d\u8fc7\u4f3c\u4e4e\u65e0\u6cd5\u89e3\u51b3\u6bcf\u6761\u8fb9\u53ef\u4ee5\u4f7f\u7528\u4efb\u610f\u591a\u6b21\u7684\u95ee\u9898\u3002\u3002<br \/>\n\u3002\u3002\u53ea\u8981\u5bf9\u539f\u56fe\u6c42\u4f20\u9012\u95ed\u5305\u540e\uff0c\u95ee\u9898\u5c31\u8f6c\u6362\u6210\u4e86<a href=\"https:\/\/www.shuizilong.com\/house\/archives\/hdu-3435-a-new-graph-game\/\">\u54c8\u5bc6\u987f\u5708\u8986\u76d6<\/a>\uff0c\u5bf9\u4e8e\u4e0d\u5b58\u5728\u7684\u8fb9\uff0c\u7528 C \u8d4b\u503c\u4e0a\u5373\u53ef\u3002<\/p>\n<p>\u3002\u5bf9\u54c8\u5bc6\u987f\u5708\u8986\u76d6\u3002\u4f7f\u7528 KM \u7684\u8bdd\u3002\u3002\u81f3\u6b64\u5c31\u5f97\u5230\u4e86 O(Tn3) \u7684\u7b97\u6cd5\u3002\u3002\u3002<br \/>\n\u4e4b\u540e\u8003\u8651\u4e0d\u540c C \u4e4b\u95f4\u7684\u5197\u4f59\u3002\u3002\u3002\u90a3\u4e48\u5982\u679c\u5bf9\u8be2\u95ee\u8fdb\u884c\u6392\u5e8f\uff0c\u5982\u679c\u5f53\u524d\u67d0\u5bf9\u5339\u914d\u7684\u6743\u503c\u662f C\uff0c\u90a3\u4e48\u5bf9\u4e8e\u66f4\u5927\u7684 C\u3002\u3002\u4e00\u5b9a\u4e5f\u662f\u8fd9\u7ec4\u5339\u914d\u3002\u3002<br \/>\n\u4e8e\u662f\u5bf9\u8be2\u95ee\u79bb\u7ebf\u5904\u7406\u3002\u3002\u4ecd\u7136\u5f97\u5230\u4e86 O(Tn3)\u3002\u3002\u4f46\u662f n \u7684\u89c4\u6a21\u4f1a\u9010\u6e10\u51cf\u5c0f\u3002\u3002\u3002<\/p>\n<p>\u4f46\u662f\u4ecd\u7136\u5404\u79cd TLE \u3002\u3002\u3002<br \/>\n\u8d5b\u540e\u5bf9 <a href=\"http:\/\/www.codechef.com\/viewsolution\/1318989\">CLJ \u7684\u4ee3\u7801<\/a> \u4f7f\u7528\u4e86<a href=\"http:\/\/www.heroworld.net\/h3\/209.html\">\u521d\u7ea7\u9e70\u773c\u672f\u3002\u3002\u3002<\/a><\/p>\n<p><a href=\"https:\/\/www.shuizilong.com\/house\/wp-content\/uploads\/2012\/09\/\u672a\u547d\u540d.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.shuizilong.com\/house\/wp-content\/uploads\/2012\/09\/\u672a\u547d\u540d.jpg\" alt=\"\" title=\"\u672a\u547d\u540d\" width=\"56\" height=\"64\"\/><\/a><\/p>\n<p>\u53d1\u73b0\u6211\u8fd9\u4e00\u6b65\u8bef\u533a\u4e86\u3002\u3002\uff08\u3002\u3002\u3002\u6211\u8fd9\u91cc\u4f3c\u4e4e\u4e00\u76f4\u8ba4\u4e3a\u5bf9\u4e8e\u4e8c\u5206\u56fe\u6700\u6709\u5339\u914d\u95ee\u9898\u3002\u3002\u7528\u7279\u5b9a\u7684 KM \u7b97\u6cd5\u603b\u662f\u6bd4\u8d39\u7528\u6d41\u6765\u7684\u6709\u6548\u3002<br \/>\n\u3002\u4f46\u662f\u8fd9\u9898\u91cc\u4f7f\u7528\u8d39\u7528\u6d41\u53ef\u4ee5\u9010\u6b65\u63a8\u6d41\u3002\u3002\u4ece\u800c\u5728\u4e0d\u540c\u7684\u8be2\u95ee\u4e4b\u95f4\u5f97\u5230\u5f88\u81ea\u7136\u7684\u4f18\u5316\u3002\u3002\u3002<\/p>\n<p>Knight Moving:<br \/>\n\u7ed9\u5b9a\u4e24\u7ec4\u6b65\u957f\uff0c(AX, AY), (BX, BY)\uff0c\u95ee\u4ece (0, 0) \u5f00\u59cb\u51fa\u53d1\u5230 (n, m) \u7ed3\u675f\u3002\u3002<br \/>\n\u3002\u6709\u591a\u5c11\u79cd\u4e0d\u540c\u7684\u79fb\u52a8\u65b9\u6848\u3002\u3002\uff08\u65e0\u89e3\u6216\u8005\u65e0\u7a77\u89e3\u6216\u8005\u6709\u9650\u89e3\u3002\u3002\u3002<br \/>\n\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014<br \/>\n\u4e0d\u540c\u7684\u79fb\u52a8\u65b9\u6848\u5b9a\u4e49\u4e3a\u67d0\u4e00\u6b65\u6240\u5230\u8fbe\u7684\u683c\u5b50\u4e0d\u540c\u3002\u3002\u3002\u6240\u4ee5\u5bf9\u4e8e AX == BX &#038;&#038; AY == BY \u7684\u60c5\u51b5\u8981\u5355\u72ec\u5904\u7406\u3002\u3002\u3002<br \/>\n\u3002\u3002\u9664\u6b64\u4e4b\u5916\u8fd8\u6709\u5404\u79cd\u5404\u6837\u7684\u60c5\u51b5\u3002\u3002\u603b\u4e4b\u6b64\u9898\u8fdc\u6bd4\u5176\u770b\u8d77\u6765\u8981\u590d\u6742\u3002\u3002> <\u3002\n\n\n\n\n<h3>\u9644\u52a0\u9898: <\/h3>\n<p>Simultaneous Nim:<br \/>\n\u3002\u3002\u7ed9\u5b9a\u4e00\u7ec4\u4ea6\u6216\u548c\u4e3a 0 \u7684\u6570\u3002\u3002\u8981\u6c42\u5206\u5272\u51fa\u5c3d\u53ef\u80fd\u591a\u7684\u7ec4\u3002\u3002<br \/>\n\u4f7f\u5f97\u6bcf\u7ec4\u5185\u7684\u4ea6\u6216\u548c\u540c\u6837\u4e3a 0 .\u3002\u3002<br \/>\n\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014<br \/>\n\u5199\u4e2a\u66b4\u529b\u5224\u65ad\u76f8\u540c\u4f4d\u7f6e\u5c31\u80fd\u5f97\u5230 0.03 \u5206\u3002\u3002\u3002<br \/>\n\uff08\u3002\u3002ACRush \u4ece\u7b2c\u4e8c\u5929\u5c31\u5f00\u59cb\u72c2\u5237\u8fd9\u9053\u9898\u3002\u3002\u3002\u800c\u4e14\u6211\u524d\u9762\u7684\u9898\u76ee\u6ca1\u505a\u5b8c \u3002\u5b8c\u5168\u6ca1\u52a8\u529b\u505a\u9644\u52a0\u9898\u554a\u3002\u3002\u3002\u3002<br \/>\n\u3002\u3002\u3002\u540e\u6765\u6700\u540e\u51e0\u4e2a\u5c0f\u65f6\u5b9e\u5728\u6ca1\u529e\u6cd5\u3002\u3002\u53c8\u56de\u5230\u8fd9\u4e2a\u9898\u3002\u3002\u60f3\u4e86\u4e00\u4e2a\u7b97\u6cd5\u3002\u3002\u6839\u636e\u6570\u5b57\u7684\u6700\u9ad8\u4e3a\u8fdb\u884c\u5206\u7ec4\u3002\u3002<br \/>\n\u7136\u540e\u4ece\u9ad8\u7ec4\u5411\u4e0b\u9012\u964d\u3002\u3002\u6253\u5370\u6700\u9ad8\u4f4d\u4e3a 0 \uff08\u4e5f\u5c31\u662f\u4ea6\u6216\u548c\u4e3a 0 \uff09\u7684\u6240\u6709\u7ec4\u5408\u3002\u3002\u3002\u4e0d\u8fc7\u6700\u540e\u5f53\u7136\u662f\u6ca1\u8c03\u51fa\u6765\u5566\u3002<br \/>\n\u3002\u3002\u3002\u3002\u3002<\/p>\n<h3>External link: <\/h3>\n<p><a href=\"http:\/\/www.codechef.com\/SEP12\/\">http:\/\/www.codechef.com\/SEP12\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>8.03 \/ 10 &#8230; \u3002\u3002\u3002\u4f3c\u4e4e\u672c\u6708\u9898\u76ee\u7684\u6574\u4f53\u8d28\u91cf\u6709\u6240\u4e0b\u964d\uff1f\u3002\u3002\u3002\u3002 \u4e0d\u8fc7 Knight Moving &#038;&#038; Annual Parade \u5bf9\u6211\u6765\u8bf4\u8fd8\u662f\u5341\u5206\u56f0\u96be\u3002\u3002\uff09 \uff08\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u8bf4 Knight Moving \u5bf9\u6211\u6765\u8bf4\u66f4\u52a0\u56f0\u96be\u3002\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":[83],"tags":[],"class_list":["post-472","post","type-post","status-publish","format-standard","hentry","category-codechef"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2tdP7-7C","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/472","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=472"}],"version-history":[{"count":1,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/472\/revisions"}],"predecessor-version":[{"id":473,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/472\/revisions\/473"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/media?parent=472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/categories?post=472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/tags?post=472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}