{"id":221,"date":"2024-04-26T21:05:09","date_gmt":"2024-04-26T13:05:09","guid":{"rendered":"https:\/\/seanxd.com\/?p=221"},"modified":"2024-04-26T21:05:12","modified_gmt":"2024-04-26T13:05:12","slug":"zerojudge-g488","status":"publish","type":"post","link":"https:\/\/seanxd.com\/zh\/zerojudge-g488\/","title":{"rendered":"ZeroJudge G488: COVID-101"},"content":{"rendered":"\n\n\n<p class=\"\">\u96fb\u7b97\u793e\u5728\u525b\u958b\u5b78\u6642\uff0c\u5c31\u5df2\u7d93\u8513\u5ef6\u4e86\u4e00\u7a2e\u75c5\u6bd2\u7a31\u70baCOVID-101\uff0c\u5f97\u5230\u9019\u7a2e\u75c5\u7684\u4eba\uff0c\u6703\u4e00\u76f4\u760b\u72c2\u88dd\u5f31\uff0c\u4e14\u5e38\u5e38\u628a\u300c\u96fb\u300d\u639b\u5728\u5634\u908a\u3002COVID-101\u6709\u4e00\u7a2e\u7279\u6b8a\u7684\u8513\u5ef6\u65b9\u5f0f\uff0c\u5728\u7b2c1\u5929\u6642\u67091\u500bCOVID-101\u75c5\u6bd2\uff0c\u800c\u5728<strong>\u7b2c x \u5929\u6642\uff0c\u6703\u6709 n(x) = n(x &#8211; 1) + x<sup>2<\/sup> &#8211; x + 1 \u500b\u75c5\u6bd2<\/strong>\uff0c\u8acb\u4f60\u8a08\u7b97\u51fa <strong>x \u5929\u5f8cCOVID-101\u7684\u6578\u91cf n(x)<\/strong>\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7bc4\u4f8b\u6e2c\u8cc7<\/h2>\n\n\n\n<figure class=\"wp-block-table nfd-wb-animate nfd-wb-fade-in-bottom-short\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7bc4\u4f8b\u8f38\u5165<\/th><th>\u7bc4\u4f8b\u8f38\u51fa<\/th><\/tr><\/thead><tbody><tr><td>\u8f38\u5165\u4e00\u500b\u6574\u6578\uff0c\u4ee3\u8868\u7d93\u904e x \u5929<br>x &lt;= 200<\/td><td>\u8f38\u51fa n(x)\u3002<\/td><\/tr><tr><td>2<\/td><td>4<\/td><\/tr><tr><td>10<\/td><td>340<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u89e3\u984c\u601d\u8def<\/h2>\n\n\n\n<p class=\"\">\u53ef\u4ee5\u4f7f\u7528<strong>\u51fd\u5f0f\u56de\u50b3\u6578\u503c<\/strong>\u7684\u65b9\u5f0f\u505a<strong>\u905e\u8ff4<\/strong>\uff0c<strong>\u7d42\u6b62\u689d\u4ef6\u662f\u7576 N = 1 \u6642\u5c31\u56de\u50b3 1<\/strong>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7bc4\u4f8b\u7a0b\u5f0f\u78bc\uff0d<a href=\"https:\/\/zerojudge.tw\/ShowProblem?problemid=g488\" target=\"_blank\" rel=\"noreferrer noopener\">ZeroJudge G488: COVID-101<\/a><\/h3>\n\n\n\n<div class=\"hcb_wrap nfd-wb-animate nfd-wb-reveal-right nfd-delay-50\"><pre class=\"prism line-numbers lang-cpp\" data-lang=\"C++\"><code>#include &lt;iostream&gt;\nusing namespace std;\n\nint calc (int N)\n{\n    if (N == 1) return 1;\n    return calc(N-1) + (N*N) - N + 1;\n}\n\nint main() {\n    cin.sync_with_stdio(0);\n    cin.tie(0);\n    int N;\n    cin &gt;&gt; N;\n    cout &lt;&lt; calc(N) &lt;&lt; &quot;\\n&quot;;\n}\n\n\/\/ZeroJudge G488\n\/\/Dr. SeanXD<\/code><\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u96fb\u7b97\u793e\u5728\u525b\u958b\u5b78\u6642\uff0c\u5c31\u5df2\u7d93\u8513\u5ef6\u4e86\u4e00\u7a2e\u75c5\u6bd2\u7a31\u70baCOVID-101\uff0c\u5f97\u5230\u9019\u7a2e\u75c5\u7684\u4eba\uff0c\u6703\u4e00\u76f4\u760b\u72c2\u88dd\u5f31\uff0c\u4e14\u5e38\u5e38\u628a\u300c\u96fb\u300d\u639b [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[6],"tags":[8,13,28],"class_list":["post-221","post","type-post","status-publish","format-standard","hentry","category-6","tag-8","tag-13","tag-28"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/seanxd.com\/zh\/wp-json\/wp\/v2\/posts\/221","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/seanxd.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/seanxd.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/seanxd.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/seanxd.com\/zh\/wp-json\/wp\/v2\/comments?post=221"}],"version-history":[{"count":1,"href":"https:\/\/seanxd.com\/zh\/wp-json\/wp\/v2\/posts\/221\/revisions"}],"predecessor-version":[{"id":222,"href":"https:\/\/seanxd.com\/zh\/wp-json\/wp\/v2\/posts\/221\/revisions\/222"}],"wp:attachment":[{"href":"https:\/\/seanxd.com\/zh\/wp-json\/wp\/v2\/media?parent=221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/seanxd.com\/zh\/wp-json\/wp\/v2\/categories?post=221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/seanxd.com\/zh\/wp-json\/wp\/v2\/tags?post=221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}