{"id":225,"date":"2025-03-29T14:06:10","date_gmt":"2025-03-29T14:06:10","guid":{"rendered":"http:\/\/west.wangyuansheng.cn\/?p=225"},"modified":"2025-07-18T06:03:49","modified_gmt":"2025-07-18T06:03:49","slug":"%e8%b4%ad%e4%b9%b0%e6%96%87%e5%85%b7","status":"publish","type":"post","link":"http:\/\/west.wangyuansheng.cn\/?p=225","title":{"rendered":"\u8d2d\u4e70\u6587\u5177"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">\u5206\u6790\u95ee\u9898<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u6e05\u695a\u5730\u7406\u89e3\u9898\u76ee\u8981\u6c42\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1.<strong>\u6587\u5177\u79cd\u7c7b\u4e0e\u4ef7\u683c<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5706\u73e0\u7b14\uff1a8 \u89d2\u94b1\u4e00\u652f<\/li>\n\n\n\n<li>\u94c5\u7b14\uff1a2 \u89d2\u94b1\u4e00\u652f<\/li>\n\n\n\n<li>\u94c5\u7b14\u82af\uff1a1 \u89d2\u94b1\u4e00\u652f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">2.<strong>\u8d2d\u4e70\u8981\u6c42<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u6837\u81f3\u5c11\u4e70\u4e00\u652f\u5373\u5706\u73e0\u7b14\u3001\u94c5\u7b14\u3001\u94c5\u7b14\u82af\u7684\u6570\u91cf\u90fd \u2265 1<\/li>\n\n\n\n<li>\u603b\u6570\u8981\u8d85\u8fc7 30 \u652f\u5373\u5706\u73e0\u7b14 + \u94c5\u7b14 + \u94c5\u7b14\u82af > 30<\/li>\n\n\n\n<li>\u94b1\u8981\u5168\u90e8\u82b1\u5b8c\u5373\u603b\u82b1\u8d39 =N \u5143<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">3.<strong>\u5355\u4f4d\u7edf\u4e00<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9898\u76ee\u4e2dN \u7684\u5355\u4f4d\u662f\u5143\uff0c\u800c\u6587\u5177\u4ef7\u683c\u662f\u89d2\u3002\u4e3a\u4e86\u65b9\u4fbf\u8ba1\u7b97\uff0c\u6211\u4eec\u5c06N \u5143\u8f6c\u6362\u4e3a10N \u89d2\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u5efa\u7acb\u6a21\u578b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u9700\u8981\u627e\u5230\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6\u7684\u975e\u8d1f\u6574\u6570\u89e3\u8bbe\u5706\u73e0\u7b14\u6570\u91cf\u4e3ax\uff0c\u94c5\u7b14\u4e3ay\uff0c\u94c5\u7b14\u82af\u4e3az\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>x &gt;=1, y &gt;= 1 , z&gt;=1<\/li>\n\n\n\n<li>x + y + z &gt; 30<\/li>\n\n\n\n<li>8x + 2y + z = 10N<\/li>\n\n\n\n<li>\u4e3a\u4e86\u7b80\u5316\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\uff1a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u904d\u5386\u6240\u6709\u53ef\u80fd\u7684 x \u548c y\uff0c\u7136\u540e\u8ba1\u7b97 z<\/li>\n\n\n\n<li>\u68c0\u67e5 z \u662f\u5426\u6ee1\u8db3 z >=1 \u548c x + y + z > 30<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7f16\u5199 C++ \u4ee3\u7801<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u662f\u57fa\u4e8e\u4e0a\u8ff0\u601d\u8def\u7684 C++ \u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;bits\/stdc++.h&gt;\nusing namespace std;\n\nint main() {\n    int N;\n    cin &gt;&gt; N;\n    int totalMoney = 10 * N; \/\/ \u8f6c\u6362\u4e3a\u89d2\n    int count = 0;\n\n    for (int x = 1; 8 * x &lt;= totalMoney - 3; x++) { \/\/ x\u81f3\u5c111\u652f\uff0c\u4e14\u5269\u4f59\u7684\u94b1\u81f3\u5c11\u80fd\u4e701\u652f\u94c5\u7b14\u548c1\u652f\u94c5\u7b14\u82af\n        for (int y = 1; 8 * x + 2 * y &lt;= totalMoney - 1; y++) { \/\/ y\u81f3\u5c111\u652f\uff0c\u4e14\u5269\u4f59\u7684\u94b1\u81f3\u5c11\u80fd\u4e701\u652f\u94c5\u7b14\u82af\n            int z = totalMoney - 8 * x - 2 * y;\n            if (z &gt;= 1 &amp;&amp; x + y + z &gt; 30) {\n                count++;\n            }\n        }\n    }\n    cout &lt;&lt; count &lt;&lt; endl;\n    return 0;\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ee3\u7801\u89e3\u91ca<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1.<strong>\u8f93\u5165\u5904\u7406<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8bfb\u53d6\u6574\u6570N\uff0c\u8868\u793a\u5143\u6570\u3002<\/li>\n\n\n\n<li>\u5c06N \u5143\u8f6c\u6362\u4e3a10N \u89d2\uff0c\u5b58\u5165 <code>totalMoney<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">2.<strong>\u904d\u5386\u6240\u6709\u53ef\u80fd\u7684x \u548cy<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>x \u4ece 1 \u5f00\u59cb\uff0c\u76f4\u52308x \u4e0d\u8d85\u8fc7 <code>totalMoney - 3<\/code>\u56e0\u4e3a\u81f3\u5c11\u9700\u8981 2 \u89d2\u4e70\u94c5\u7b14\u548c 1 \u89d2\u4e70\u94c5\u7b14\u82af<\/li>\n\n\n\n<li>y \u4ece 1 \u5f00\u59cb\uff0c\u76f4\u52308x + 2y \u4e0d\u8d85\u8fc7 <code>totalMoney - 1<\/code>\u56e0\u4e3a\u81f3\u5c11\u9700\u8981 1 \u89d2\u4e70\u94c5\u7b14\u82af<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">3.<strong>\u8ba1\u7b97z \u5e76\u68c0\u67e5\u6761\u4ef6<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>z = totalMoney &#8211; 8x &#8211; 2y<\/li>\n\n\n\n<li>\u68c0\u67e5z&gt;= 1 \u4e14x + y + z &gt; 30\u3002\u5982\u679c\u6ee1\u8db3\uff0c\u65b9\u6848\u6570 <code>count<\/code> \u52a0 1<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">4.<strong>\u8f93\u51fa\u7ed3\u679c<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6253\u5370\u7b26\u5408\u6761\u4ef6\u7684\u65b9\u6848\u603b\u6570 <code>count<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4fdd\u5b58 \u7f16\u8bd1 \u8fd0\u884c<\/h2>\n","protected":false},"excerpt":{"rendered":"<p>\u5206\u6790\u95ee\u9898 \u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u6e05\u695a\u5730\u7406\u89e3\u9898\u76ee\u8981\u6c42\uff1a 1.\u6587\u5177\u79cd\u7c7b\u4e0e\u4ef7\u683c\uff1a&#8230; <a class=\"read-more\" href=\"http:\/\/west.wangyuansheng.cn\/?p=225\">\u9605\u8bfb\u66f4\u591a&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-225","post","type-post","status-publish","format-standard","hentry","category-problem"],"_links":{"self":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=225"}],"version-history":[{"count":6,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/225\/revisions"}],"predecessor-version":[{"id":357,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=\/wp\/v2\/posts\/225\/revisions\/357"}],"wp:attachment":[{"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=225"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/west.wangyuansheng.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}