{"id":478,"date":"2023-04-07T22:21:22","date_gmt":"2023-04-07T14:21:22","guid":{"rendered":"https:\/\/blog.cirno.fun\/?p=478"},"modified":"2025-03-19T00:34:26","modified_gmt":"2025-03-18T16:34:26","slug":"%e5%85%bb%e7%ab%b9%e9%bc%a0","status":"publish","type":"post","link":"https:\/\/blog.sssn.tech\/?p=478","title":{"rendered":"\u517b\u7af9\u9f20"},"content":{"rendered":"<p>\u767e\u5ea6\u677e\u679c\u5468\u8d5b\u9898 <img decoding=\"async\" src=\"https:\/\/blog.sssn.tech\/wp-content\/uploads\/2023\/04\/image-1680874615879.png\" alt=\"file\" \/><img decoding=\"async\" src=\"https:\/\/blog.sssn.tech\/wp-content\/uploads\/2023\/04\/image-1680874637872.png\" alt=\"file\" \/><\/p>\n<p>\u5c06m\u4e2a\u7af9\u9f20\u585e\u8fdbn\u4e2a\u4f4d\u7f6e\u786e\u5b9a\u7684\u9694\u95f4\uff0c\u6c42\u76f8\u90bb\u6700\u8fd1\u4e24\u4e2a\u7af9\u9f20\u7684\u8ddd\u79bb\u6700\u5927\u503c\uff0c\u5373\uff0c\u4ee4\u6700\u8fd1\u7684\u4e24\u4e2a\u7af9\u9f20\u76f8\u9694\u6700\u8fdc<\/p>\n<p>\u9047\u5230\u8fd9\u79cd\u9898\u4e00\u5b9a\u8981\u60f3\u5230\u4e8c\u5206\uff01\u53ea\u8981\u80fd\u60f3\u5230\u4e8c\u5206\u4e8b\u60c5\u5c31\u4f1a\u7b80\u5355\u5f88\u591a<\/p>\n<p>\u5927\u4f53\u601d\u8def\u662f\uff0c\u4e8c\u5206\u641c\u7d22\u7b54\u6848\uff08\u6700\u8fd1\u7684\u4e24\u4e2a\u7af9\u9f20\u76f8\u805a\u7684\u8ddd\u79bb\uff09\uff0c\u7136\u540e\u5199\u4e00\u4e2a\u8d2a\u5fc3\u7684\u9a8c\u8bc1<\/p>\n<p>\u8d2a\u5fc3\u7684\u601d\u8def\u662f\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u786e\u5b9a\u7684\u8ddd\u79bb\uff0c\u5c3d\u53ef\u80fd\u591a\u7684\u5728\u5df2\u77e5\u7684\u9694\u95f4\u4e2d\u585e\u5165\u7af9\u9f20\uff0c\u7136\u540e\u6bd4\u8f83\u53ef\u4ee5\u585e\u5165\u7684\u7af9\u9f20\u6570\u91cf\u548c\u5df2\u77e5\u6570\u91cfm\uff0c\u5982\u679c\u5927\u4e8e\u7b49\u4e8e\u5219\u6210\u529f<\/p>\n<pre><code class=\"language-cpp\">#include&lt;bits\/stdc++.h&gt;\n\nusing namespace std;\n\nconst int N = 5e4 + 10, INF = 1 &lt;&lt; 30;\n\nint a[N], n, m;\n\nbool check(int len)\n{\n    \/\/ \u4ee5len\u4e3a\u6700\u5c0f\u95f4\u9694\u957f\u5ea6\u53ef\u4e0d\u53ef\u4ee5\u88c5\u4e0bm\u53ea\u7af9\u9f20\n    int cnt = 0, pre = -INF;\n    for (int i = 1; i &lt;= n; i++)\n    {\n        if (a[i] - pre &gt;= len)\n        {\n            cnt++;\n            pre = a[i];\n        }\n    }\n    return cnt &gt;= m;\n}\n\nint main( )\n{\n    cin &gt;&gt; n &gt;&gt; m;\n    for (int i = 1; i &lt;= n; i++)\n        cin &gt;&gt; a[i];\n\n    sort(a + 1, a + n + 1);\n\n    int L = 0, R = INF;\n    while (L &lt; R)\n    {\n        \/\/ \u4e8c\u5206\u6a21\u677f\uff0c\u4fee\u6539R\u7684\u65f6\u5019mid\u8981+1\n        \/\/ \u535a\u5ba2\u91cc\u6574\u6570\u4e8c\u5206\u90a3\u4e00\u8282\u6709\u8be6\u7ec6\u4ecb\u7ecd\n        int mid = (L + R + 1) &gt;&gt; 1;\n        if (check(mid))\n            L = mid;\n        else\n            R = mid - 1;\n    }\n    \/\/ \u8fd9\u4e2a\u6a21\u677f\u597d\u5c31\u597d\u5728\u6ca1\u6709L\u548cR\u7684\u95ee\u9898\uff0cwhile\u7ed3\u675f\u540eLR\u76f8\u7b49\u4e86\n    cout &lt;&lt; L &lt;&lt; endl;\n    return 0;\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u767e\u5ea6\u677e\u679c\u5468\u8d5b\u9898 \u5c06m\u4e2a\u7af9\u9f20\u585e\u8fdbn\u4e2a\u4f4d\u7f6e\u786e\u5b9a\u7684\u9694\u95f4\uff0c\u6c42\u76f8\u90bb\u6700\u8fd1\u4e24\u4e2a\u7af9\u9f20\u7684\u8ddd\u79bb\u6700\u5927\u503c [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,23],"tags":[],"class_list":["post-478","post","type-post","status-publish","format-standard","hentry","category-9","category-23"],"_links":{"self":[{"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/posts\/478","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=478"}],"version-history":[{"count":2,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/posts\/478\/revisions"}],"predecessor-version":[{"id":840,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=\/wp\/v2\/posts\/478\/revisions\/840"}],"wp:attachment":[{"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.sssn.tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}