{"id":381,"date":"2025-09-07T20:28:12","date_gmt":"2025-09-07T11:28:12","guid":{"rendered":"https:\/\/yowamon3.com\/?p=381"},"modified":"2025-09-07T20:28:12","modified_gmt":"2025-09-07T11:28:12","slug":"%e5%8f%8d%e8%bb%a2%e5%9b%9e%e6%95%b0%ef%bc%88%e9%9a%a3%e6%8e%a5%e4%ba%a4%e6%8f%9b%e3%82%bd%e3%83%bc%e3%83%88%ef%bc%89","status":"publish","type":"post","link":"https:\/\/yowamon3.com\/?p=381","title":{"rendered":"\u53cd\u8ee2\u56de\u6570\uff08\u96a3\u63a5\u4ea4\u63db\u30bd\u30fc\u30c8\uff09"},"content":{"rendered":"\n<p>N \u500b\u306e\u6574\u6570\u304b\u3089\u306a\u308b\u6570\u5217 <strong>A1, A2, \u2026, AN<\/strong> \u304c\u4e0e\u3048\u3089\u308c\u307e\u3059\u3002<br>\u3053\u306e\u6570\u5217\u3092\u6607\u9806\u306b\u4e26\u3079\u66ff\u3048\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a <strong>\u96a3\u63a5\u8981\u7d20\u306e\u4ea4\u63db\u56de\u6570<\/strong>\u3092\u6c42\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading jinr-heading d--bold\">\u5165\u529b<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>N\nA1 A2 ... AN\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list jinr-list\">\n<li>1 \u884c\u76ee\u306b\u6574\u6570 <strong>N<\/strong> (2 \u2264 N \u2264 1000)<\/li>\n\n\n\n<li>2 \u884c\u76ee\u306b N \u500b\u306e\u6574\u6570 Ai (\u221210^6 \u2264 Ai \u2264 10^6)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading jinr-heading d--bold\">\u51fa\u529b<\/h2>\n\n\n\n<p>\u6607\u9806\u306b\u4e26\u3079\u66ff\u3048\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u6700\u5c0f\u306e\u96a3\u63a5\u4ea4\u63db\u56de\u6570\u3092\u51fa\u529b\u305b\u3088\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading jinr-heading d--bold\">\u5165\u529b\u4f8b1<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>5\n3 1 4 2 5\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading jinr-heading d--bold\">\u51fa\u529b\u4f8b1<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>3\n<\/code><\/pre>\n\n\n\n<p>\uff08swap: [3,1,4,2,5] \u2192 [1,3,4,2,5] \u2192 [1,3,2,4,5] \u2192 [1,2,3,4,5]\uff09<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading jinr-heading d--bold\">\u5165\u529b\u4f8b2<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>4\n1 2 3 4\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading jinr-heading d--bold\">\u51fa\u529b\u4f8b2<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>0\n<\/code><\/pre>\n\n\n\n<p>\uff08\u3059\u3067\u306b\u30bd\u30fc\u30c8\u6e08\u307f\uff09<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading jinr-heading d--bold\">\u5165\u529b\u4f8b3<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>3\n3 2 1\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading jinr-heading d--bold\">\u51fa\u529b\u4f8b3<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>3\n<\/code><\/pre>\n\n\n\n<p>\uff08swap: [3,2,1] \u2192 [2,3,1] \u2192 [2,1,3] \u2192 [1,2,3]\uff09<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading jinr-heading d--bold\">\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n\n<ul class=\"wp-block-list jinr-list\">\n<li>\u3053\u306e\u554f\u984c\u306f\u300c<strong>\u53cd\u8ee2\u6570\uff08inversion number\uff09<\/strong>\u300d\u3092\u6570\u3048\u308b\u554f\u984c\u3068\u540c\u3058\u3002<\/li>\n\n\n\n<li>O(N^2) \u306e\u30eb\u30fc\u30d7\u3067\u5341\u5206\u89e3\u3051\u308b\u304c\u3001\u5de5\u592b\u3059\u308c\u3070 O(N log N) \u3067\u3082\u89e3\u3051\u308b\uff08\u5fdc\u7528\uff09\u3002<\/li>\n\n\n\n<li><strong>\u30d0\u30d6\u30eb\u30bd\u30fc\u30c8\u306e\u4ea4\u63db\u56de\u6570<\/strong>\uff1d\u53cd\u8ee2\u6570 \u3068\u3044\u3046\u3064\u306a\u304c\u308a\u3092\u5b66\u3079\u308b\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>N \u500b\u306e\u6574\u6570\u304b\u3089\u306a\u308b\u6570\u5217 A1, A2, \u2026, AN \u304c\u4e0e\u3048\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u6570\u5217\u3092\u6607\u9806\u306b\u4e26\u3079\u66ff\u3048\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a \u96a3\u63a5\u8981\u7d20\u306e\u4ea4\u63db\u56de\u6570\u3092\u6c42\u3081\u3066\u304f\u3060\u3055\u3044\u3002 \u5165\u529b \u51fa\u529b \u6607\u9806\u306b\u4e26\u3079\u66ff\u3048\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u6700\u5c0f\u306e\u96a3\u63a5\u4ea4\u63db\u56de\u6570\u3092\u51fa\u529b\u305b\u3088\u3002  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jinr_url_youtube":"","_jinr_pip_youtube":false,"_jinr_time_youtube":"","_jinr_thumb_youtube":"","_jinr_media_youtube":"","_jinr_category_edit":false,"_jinr_category":"","_jinr_title_display":false,"_jinr_snsbutton_display":false,"_jinr_ads_display":false,"_jinr_thumbnail_display":false,"_jinr_profile_display":false,"_jinr_representations_display":false,"_jinr_relatedpost_display":false,"_jinr_sidebar1col_display":false,"_jinr_sidebar2col_display":false,"_jinr_seotitle_display":"","_jinr_description_display":"","_jinr_keyword_display":"","_jinr_hastag_display":"","_jinr_canonical_display":"","_jinr_noindex_display":false,"_jinr_paidpost":false,"_jinr_paidpost_product_id":"","_jinr_headtag_article":"","footnotes":""},"categories":[114],"tags":[49,105],"class_list":["post-381","post","type-post","status-publish","format-standard","hentry","category-114","tag-49","tag-105"],"views":"0","_links":{"self":[{"href":"https:\/\/yowamon3.com\/index.php?rest_route=\/wp\/v2\/posts\/381","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yowamon3.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yowamon3.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yowamon3.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yowamon3.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=381"}],"version-history":[{"count":1,"href":"https:\/\/yowamon3.com\/index.php?rest_route=\/wp\/v2\/posts\/381\/revisions"}],"predecessor-version":[{"id":382,"href":"https:\/\/yowamon3.com\/index.php?rest_route=\/wp\/v2\/posts\/381\/revisions\/382"}],"wp:attachment":[{"href":"https:\/\/yowamon3.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yowamon3.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yowamon3.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}