\u4eca\u5929PKU\u7684monthly,\u6709\u94b1,\u4f30\u8ba1\u4f1a\u5438\u5f15\u66f4\u591a\u7684\u4eba,\u5e76\u4e14\u73b0\u5728\u662f\u5404\u9ad8\u6821\u96c6\u8bad\u65f6\u95f4,\u4eba\u4f1a\u66f4\u591a.\u4e8b\u5148\u53bb\u8c03\u67e5\u4e86\u4e00\u4e0b,\u53d1\u73b0\u80fd\u8fc7\u4e00\u9898\u57fa\u672c\u5c31\u80fd\u4fdd\u8bc1top100\u4e86,\u770b\u5230\u7684\u6700\u5dee\u662ftop125,\u6700\u597d\u662ftop45.\u524d\u976212\u6b21loutiancheng\u62ff\u4e864\u6b21\u51a0\u519b,-____-b<\/p>\n
\u4eca\u5929\u5f00\u59cb\u5206\u7ec4\u5f04,\u6682\u65f6\u8fd8\u662f2\u4eba\u7ec4,\u5076\u7684N\u591a\u961f\u53cb\u63d0\u8bae\u90fd\u88ab\u67aa\u6bd9:(,\u4e0d\u8fc7\u4e5f\u597d,\u770b\u770b\u81ea\u5df1\u5230\u5e95\u4ec0\u4e48\u6c34\u5e73,\u5176\u5b9e\u5927\u5bb6\u4e5f\u90fd\u662f\u5f88\u4e0d\u9519\u7684,\u521a\u597d\u53d6\u957f\u8865\u77ed<\/p>\n
\u4e00\u5f00\u59cb\u548c\u84dd\u8702\u5206\u5de5,\u4ed6\u4ece\u524d\u9762\u5f00\u59cb,\u6211\u4ece\u540e\u9762\u5f00\u59cb,\u4e00\u5f00\u59cb\u4ed6\u5c31\u8017\u5728A\u4e0a\u9762,\u6211\u4e5f\u89c9\u5f97\u4e0d\u662f\u5f88\u96be,\u53ea\u662f\u5904\u7406\u6bd4\u8f83\u9ebb\u70e6(\u5076\u6700\u8ba8\u538c\u8fd9\u79cd\u4e86)<\/p>\n
\u6211\u56e0\u4e3a\u662f\u6362\u673a\u5668\u7528,\u7b49\u628a\u4e1c\u897f\u8c03\u8bd5\u597d\u90fd\u8fc7\u4e86\u5f88\u4e45\u4e86,\u5feb\u901f\u628a\u6240\u6709\u9898\u76ee\u626b\u63cf\u4e86\u4e00\u6b21,\u89c9\u5f97H\u662f\u6700\u5bb9\u6613\u4e0b\u624b\u7684,\u5f00\u59cb\u5199,\u5f88\u7b80\u5355\u7684\u9898,\u53ea\u7528\u4e86\u4e0d\u8981\u4e00\u5c4f\u7684\u4ee3\u7801\u5c31\u641e\u5b9a\u4e86,\u5728\u7eb8\u4e0a\u63a8\u4e86\u4e00\u4e0b\u63d0\u4ea4,WA\u00a0\u00a0\u00a0 T_T<\/p>\n
\u91cd\u65b0\u8003\u8651\u4e86\u4e00\u4e0b,\u53d1\u73b0\u9898\u76ee\u4e2d\u7684C\u5b8c\u5168\u662f\u4e00\u4e2a\u9677\u9631,\u6839\u672c\u4e0d\u9700\u8981\u7528,\u7ed3\u679c\u4e00\u6539,\u4ee3\u7801\u66f4\u7b80\u5355,AC\u4e86,\u4f46\u662f\u65f6\u95f4\u90fd\u5feb\u8fc7\u4e861\u4e2a\u5c0f\u65f6,\u8fd9\u4e2a\u65f6\u5019\u961f\u91ccN\u591a\u4eba\u90fd\u5df2\u7ecfAC\u597d\u4e45\u4e86,\u5c31\u662f\u6211\u6392\u5728\u540e\u9762,\u771f\u662f\u4e00\u5931\u8db3\u6210\u5343\u53e4\u6068\u554a<\/p>\n
\u7136\u540e\u770bF,\u611f\u89c9\u662f\u4e2aDP\u9898(\u4e8b\u5b9e\u4e0a\u4e5f\u662f),\u4f46\u662f\u6570\u636e\u91cfN\u5927\u7684\u8bf4,\u867d\u7136\u65f6\u95f4\u4e5f\u670920s,\u5199\u4ee3\u7801\u540e\u611f\u89c9\u4e0d\u597d\u5904\u7406,\u4f30\u8ba1\u4f1a\u8d85\u65f6,\u84dd\u8702\u8bf4\u4f60\u5199\u4e86\u5c31\u4ea4\u5427,\u63d0\u4ea4\u540e\u7b49\u4e86N\u4e45,TLE\u00a0\u00a0\u00a0\u00a0 T_T<\/p>\n
\u628a\u80fd\u4f18\u5316\u7684\u5730\u65b9\u5168\u90fd\u7ed9\u4f18\u5316\u4e86\u4e00\u904d,\u611f\u89c9\u65f6\u95f4\u590d\u6742\u5ea6\u8fd8\u662f\u964d\u4e0d\u4e0b\u6765.10^6\u7684\u8f93\u5165\u6570\u636e,\u505a\u51fa\u6765\u81f3\u5c11\u898110^12\u7684\u6570\u91cf\u7ea7,20s\u7edd\u5bf9\u4e0d\u591f,\u4e0d\u8fc7\u62b1\u7740\u6b7b\u732a\u4e0d\u6015\u5f00\u6c34\u70eb\u7684\u5fc3\u6001\u8fd8\u662fsubmit\u4e86\u4e00\u628a,TLE,\u51b3\u5b9a\u653e\u5f03F,\u8fd9\u65f6\u5df2\u7ecf\u8fc7\u4e862\u4e2a\u5c0f\u65f6\u4e86<\/p>\n
\u628a\u6240\u6709\u7684\u9898\u76ee\u518d\u626b\u4e86\u4e00\u904d,\u8fd8\u662f\u6ca1\u6709\u53ef\u4ee5\u4e0b\u624b\u7684,\u4e8e\u662f\u770b\u84dd\u8702\u5199A,\u4ed6\u5f04\u4e86N\u4e45\u90fd\u6ca1\u51fa\u6765,\u800c\u8fd9\u4e2a\u65f6\u5019\u4e00\u4e2a\u673a\u623f\u7684\u4eba\u90fd\u5728\u5f04A.\u6211\u51c6\u5907\u73a9\u7684\u65f6\u5019\u88ab\u4eba\u8bf4\u4e86\u4e00\u4e0b,\u4e8e\u662f\u5f00\u59cb\u5199A,\u57fa\u672c\u7b97\u6cd5\u5df2\u7ecf\u5728\u8111\u5b50\u91cc\u4e86,\u5c31\u662f\u5224\u65ad\u4e0a\u4e0b\u4e24\u4e2a\u5bf9\u5e94\u7684\u6570\u5b57\u5c31\u53ef\u4ee5\u4e86,\u4f7f\u7528\u5206\u5f00\u8c03\u8bd5\u7684\u65b9\u6cd5\u82b1\u4e86\u4e00\u4e2a\u5c0f\u65f6\u5de6\u53f3\u57fa\u672c\u641e\u5b9a,\u4f46\u662f\u53d1\u73b0\u6570\u636e\u5927\u4e86\u5c31\u4e0d\u5bf9\u4e86:(,\u611f\u89c9\u662f\u7cbe\u5ea6\u7684\u95ee\u9898,\u4e8e\u662f\u628a\u9700\u8981\u5927\u6570\u636e\u7684\u5730\u65b9\u90fd\u6539\u6210\u4e86long long,\u7ed3\u679c\u8fd8\u662f\u5728\u975e\u5e38\u5927\u7684\u6570\u636e\u91cf\u7684\u65f6\u5019\u6709\u95ee\u9898(\u611f\u8c22Grope\u63d0\u4f9b\u4e86\u51e0\u4e2a\u5927\u6570\u636e\u7684\u8f93\u51fa,\u4e0d\u7136\u600e\u4e48\u6b7b\u7684\u90fd\u4e0d\u77e5\u9053),\u540e\u6765\u8c03\u8bd5\u7684\u65f6\u5019\u53d1\u73b0long long=long*long\u7684\u65f6\u5019long long\u5f97\u5230\u7684\u8fd8\u662flong\u8303\u56f4\u5185\u7684\u503c,\u4e00\u6c14\u4e4b\u4e0b\u628a\u6240\u6709\u7684long\u90fd\u7528long long\u66ff\u6362\u6389,\u770b\u4e86\u770b\u81ea\u6211\u611f\u89c9\u826f\u597d,\u63d0\u4ea4<\/p>\n
\u8fd9\u4e2a\u65f6\u5019N\u591a\u7684\u4eba\u5728\u505aF\u548cD,\u90fd\u662f\u9650\u65f6\u8d85\u8fc720S\u7684,\u7b49\u4e86\u534a\u5929\u624d\u7b49\u5230\u6211,\u770b\u65f6\u95f4\u5df2\u7ecf\u5269\u4e0b\u4e0d\u523020\u5206\u949f\u4e86,\u800c\u673a\u623f\u6ca1\u4e00\u4e2a\u4eba\u641e\u5b9a\u6b64\u9898,\u7126\u6025\u7684\u7b49\u5f85\u7eff\u8272\u7684Waiting\u53d8\u6210Running,\u7136\u540e\u770b\u7740\u53d8\u6210\u84dd\u8272\u7684Accepted,\u5dee\u70b9\u6ca1\u5e78\u798f\u6b7b<\/p>\n
\u6700\u540e\u5c31\u662f\u8fd9\u6837\u4e86\u5427,\u5176\u4ed6\u4eba\u4e5f\u90fd\u6ca1\u6709AC,\u5176\u4ed6\u9898\u76ee\u4e5f\u8fd8\u662f\u4e0b\u4e0d\u4e86\u624b<\/p>\n
\u7b2c\u4e00\u6b21\u5728\u961f\u91cc\u6392NO.1,\u597d\u723d…<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4eca\u5929PKU\u7684monthly,\u6709\u94b1,\u4f30\u8ba1\u4f1a\u5438\u5f15\u66f4\u591a\u7684\u4eba,\u5e76\u4e14\u73b0\u5728\u662f\u5404\u9ad8\u6821\u96c6\u8bad\u65f6\u95f4,\u4eba\u4f1a\u66f4\u591a.\u4e8b\u5148\u53bb\u8c03\u67e5\u4e86\u4e00\u4e0b,\u53d1 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_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_post_was_ever_published":false},"categories":[11],"tags":[26,121,122,435],"class_list":["post-305","post","type-post","status-publish","format-standard","hentry","category-contests","tag-acm","tag-poj","tag-poj-monthly","tag-435"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4aR5e-4V","_links":{"self":[{"href":"https:\/\/www.yewen.us\/blog\/wp-json\/wp\/v2\/posts\/305","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yewen.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yewen.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yewen.us\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yewen.us\/blog\/wp-json\/wp\/v2\/comments?post=305"}],"version-history":[{"count":0,"href":"https:\/\/www.yewen.us\/blog\/wp-json\/wp\/v2\/posts\/305\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.yewen.us\/blog\/wp-json\/wp\/v2\/media?parent=305"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yewen.us\/blog\/wp-json\/wp\/v2\/categories?post=305"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yewen.us\/blog\/wp-json\/wp\/v2\/tags?post=305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}