{"id":9215,"date":"2024-05-08T11:01:02","date_gmt":"2024-05-08T03:01:02","guid":{"rendered":""},"modified":"2024-05-08T11:01:02","modified_gmt":"2024-05-08T03:01:02","slug":"L2-1 \u7b80\u5355\u8ba1\u7b97\u5668","status":"publish","type":"post","link":"https:\/\/mushiming.com\/9215.html","title":{"rendered":"L2-1 \u7b80\u5355\u8ba1\u7b97\u5668"},"content":{"rendered":"<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display: none;\"> \n <path stroke-linecap=\"round\" d=\"M5,0 0,2.5 5,5z\" id=\"raphael-marker-block\" style=\"-webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"><\/path> \n<\/svg> <\/p>\n<h3>L2-1 \u7b80\u5355\u8ba1\u7b97\u5668<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/mushiming_com\/d5bd7691171e4813aeb2011c93258fd4.png\" =\"\" =\"cal.jpg\" alt=\"L2-1 \u7b80\u5355\u8ba1\u7b97\u5668 (https:\/\/mushiming.com\/)  \u7b2c1\u5f20\" title=\"L2-1 \u7b80\u5355\u8ba1\u7b97\u5668  \u7b2c1\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<p>\u672c\u9898\u8981\u6c42\u4f60\u4e3a\u521d\u5b66\u6570\u636e\u7ed3\u6784\u7684\u5c0f\u4f19\u4f34\u8bbe\u8ba1\u4e00\u6b3e\u7b80\u5355\u7684\u5229\u7528\u5806\u6808\u6267\u884c\u7684\u8ba1\u7b97\u5668\u3002\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u8ba1\u7b97\u5668\u7531\u4e24\u4e2a\u5806\u6808\u7ec4\u6210\uff0c\u4e00\u4e2a\u5806\u6808 S\u200b1\u200b\u200b \u5b58\u653e\u6570\u5b57\uff0c\u53e6\u4e00\u4e2a\u5806\u6808 S\u200b2\u200b\u200b \u5b58\u653e\u8fd0\u7b97\u7b26\u3002\u8ba1\u7b97\u5668\u7684\u6700\u4e0b\u65b9\u6709\u4e00\u4e2a\u7b49\u53f7\u952e\uff0c\u6bcf\u6b21\u6309\u4e0b\u8fd9\u4e2a\u952e\uff0c\u8ba1\u7b97\u5668\u5c31\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a<\/p>\n<ul>\n<li>\u4ece S\u200b1\u200b\u200b \u4e2d\u5f39\u51fa\u4e24\u4e2a\u6570\u5b57\uff0c\u987a\u5e8f\u4e3a n\u200b1\u200b\u200b \u548c n\u200b2\u200b\u200b \uff1b<\/li>\n<li>\u4ece S\u200b2\u200b\u200b \u4e2d\u5f39\u51fa\u4e00\u4e2a\u8fd0\u7b97\u7b26 op\uff1b<\/li>\n<li>\u6267\u884c\u8ba1\u7b97 n\u200b2\u200b\u200b op n\u200b1\u200b\u200b \uff1b<\/li>\n<li>\u5c06\u5f97\u5230\u7684\u7ed3\u679c\u538b\u56de S\u200b1\u200b\u200b \u3002<\/li>\n<\/ul>\n<p>\u76f4\u5230\u4e24\u4e2a\u5806\u6808\u90fd\u4e3a\u7a7a\u65f6\uff0c\u8ba1\u7b97\u7ed3\u675f\uff0c\u6700\u540e\u7684\u7ed3\u679c\u5c06\u663e\u793a\u5728\u5c4f\u5e55\u4e0a\u3002<\/p>\n<h3>\u8f93\u5165\u683c\u5f0f\uff1a<\/h3>\n<p>\u8f93\u5165\u9996\u5148\u5728\u7b2c\u4e00\u884c\u7ed9\u51fa\u6b63\u6574\u6570 N\uff081&lt;N\u226410e\u200b3\u200b\u200b \uff09\uff0c\u4e3a S\u200b1\u200b\u200b \u4e2d\u6570\u5b57\u7684\u4e2a\u6570\u3002<\/p>\n<p>\u7b2c\u4e8c\u884c\u7ed9\u51fa N \u4e2a\u7edd\u5bf9\u503c\u4e0d\u8d85\u8fc7 100 \u7684\u6574\u6570\uff1b\u7b2c\u4e09\u884c\u7ed9\u51fa N\u22121 \u4e2a\u8fd0\u7b97\u7b26 \u2014\u2014 \u8fd9\u91cc\u4ec5\u8003\u8651 <code>+<\/code>\u3001<code>-<\/code>\u3001<code>*<\/code>\u3001<code>\/<\/code> \u8fd9\u56db\u79cd\u8fd0\u7b97\u3002\u4e00\u884c\u4e2d\u7684\u6570\u5b57\u548c\u7b26\u53f7\u90fd\u4ee5\u7a7a\u683c\u5206\u9694\u3002<\/p>\n<h3>\u8f93\u51fa\u683c\u5f0f\uff1a<\/h3>\n<p>\u5c06\u8f93\u5165\u7684\u6570\u5b57\u548c\u8fd0\u7b97\u7b26\u6309\u7ed9\u5b9a\u987a\u5e8f\u5206\u522b\u538b\u5165\u5806\u6808 S\u200b1\u200b\u200b \u548c S\u200b2\u200b\u200b \uff0c\u5c06\u6267\u884c\u8ba1\u7b97\u7684\u6700\u540e\u7ed3\u679c\u8f93\u51fa\u3002\u6ce8\u610f\u6240\u6709\u7684\u8ba1\u7b97\u90fd\u53ea\u53d6\u7ed3\u679c\u7684\u6574\u6570\u90e8\u5206\u3002\u9898\u76ee\u4fdd\u8bc1\u8ba1\u7b97\u7684\u4e2d\u95f4\u548c\u6700\u540e\u7ed3\u679c\u7684\u7edd\u5bf9\u503c\u90fd\u4e0d\u8d85\u8fc7 10e\u200b9\u200b\u200b \u3002<\/p>\n<p>\u5982\u679c\u6267\u884c\u9664\u6cd5\u65f6\u51fa\u73b0\u5206\u6bcd\u4e3a\u96f6\u7684\u975e\u6cd5\u64cd\u4f5c\uff0c\u5219\u5728\u4e00\u884c\u4e2d\u8f93\u51fa\uff1a<code>ERROR: X\/0<\/code>\uff0c\u5176\u4e2d X \u662f\u5f53\u65f6\u7684\u5206\u5b50\u3002\u7136\u540e\u7ed3\u675f\u7a0b\u5e8f\u3002<\/p>\n<h3>\u8f93\u5165\u6837\u4f8b 1\uff1a<\/h3>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-c\"><span class=\"token number\">5<\/span>\n<span class=\"token number\">40<\/span> <span class=\"token number\">5<\/span> <span class=\"token number\">8<\/span> <span class=\"token number\">3<\/span> <span class=\"token number\">2<\/span>\n<span class=\"token operator\">\/<\/span> <span class=\"token operator\">*<\/span> <span class=\"token operator\">-<\/span> <span class=\"token operator\">+<\/span>\n<\/code><\/pre>\n<h3>\u8f93\u51fa\u6837\u4f8b 1\uff1a<\/h3>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-c\"><span class=\"token number\">2<\/span>\n<\/code><\/pre>\n<h3>\u8f93\u5165\u6837\u4f8b 2\uff1a<\/h3>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-c\"><span class=\"token number\">5<\/span>\n<span class=\"token number\">2<\/span> <span class=\"token number\">5<\/span> <span class=\"token number\">8<\/span> <span class=\"token number\">4<\/span> <span class=\"token number\">4<\/span>\n<span class=\"token operator\">*<\/span> <span class=\"token operator\">\/<\/span> <span class=\"token operator\">-<\/span> <span class=\"token operator\">+<\/span>\n<\/code><\/pre>\n<h3>\u8f93\u51fa\u6837\u4f8b 2\uff1a<\/h3>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-cpp\">ERROR<span class=\"token operator\">:<\/span> <span class=\"token number\">5<\/span><span class=\"token operator\">\/<\/span><span class=\"token number\">0<\/span>\n<\/code><\/pre>\n<h3>AC<\/h3>\n<pre><code class=\"prism language-cpp\"><span class=\"token macro property\">#<span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;bits\/stdc++.h&gt;<\/span><\/span>\n<span class=\"token macro property\">#<span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span>\n<span class=\"token macro property\">#<span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;algorithm&gt;<\/span><\/span>\n<span class=\"token macro property\">#<span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stack&gt;<\/span><\/span>\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span>\n\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\tstack<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span> s1<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6570\u5b57\u6808<\/span>\n\tstack<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">char<\/span><span class=\"token operator\">&gt;<\/span> s2<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u8fd0\u7b97\u7b26\u6808<\/span>\n\t<span class=\"token keyword\">int<\/span> n<span class=\"token punctuation\">;<\/span>\n\tcin<span class=\"token operator\">&gt;&gt;<\/span>n<span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">int<\/span> x<span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">char<\/span> op<span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&lt;<\/span>n<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\tcin<span class=\"token operator\">&gt;&gt;<\/span>x<span class=\"token punctuation\">;<\/span>\n\t\ts1<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n\t<span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i<span class=\"token operator\">=<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&lt;<\/span>n<span class=\"token operator\">-<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\tcin<span class=\"token operator\">&gt;&gt;<\/span>op<span class=\"token punctuation\">;<\/span>\n\t\ts2<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>op<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n\t<span class=\"token keyword\">int<\/span> n1<span class=\"token punctuation\">,<\/span>n2<span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>s2<span class=\"token punctuation\">.<\/span><span class=\"token function\">empty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\tn1<span class=\"token operator\">=<\/span>s1<span class=\"token punctuation\">.<\/span><span class=\"token function\">top<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\ts1<span class=\"token punctuation\">.<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\tn2<span class=\"token operator\">=<\/span>s1<span class=\"token punctuation\">.<\/span><span class=\"token function\">top<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\ts1<span class=\"token punctuation\">.<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\top<span class=\"token operator\">=<\/span>s2<span class=\"token punctuation\">.<\/span><span class=\"token function\">top<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\ts2<span class=\"token punctuation\">.<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>op<span class=\"token operator\">==<\/span><span class=\"token string\">'+'<\/span><span class=\"token punctuation\">)<\/span>\n\t\t\tx<span class=\"token operator\">=<\/span>n2<span class=\"token operator\">+<\/span>n1<span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>op<span class=\"token operator\">==<\/span><span class=\"token string\">'-'<\/span><span class=\"token punctuation\">)<\/span>\n\t\t\tx<span class=\"token operator\">=<\/span>n2<span class=\"token operator\">-<\/span>n1<span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>op<span class=\"token operator\">==<\/span><span class=\"token string\">'*'<\/span><span class=\"token punctuation\">)<\/span>\n\t\t\tx<span class=\"token operator\">=<\/span>n2<span class=\"token operator\">*<\/span>n1<span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>op<span class=\"token operator\">==<\/span><span class=\"token string\">'\/'<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\t\t<span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>n1<span class=\"token operator\">==<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\t\t\t<span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"ERROR: %d\/0\\n\"<\/span><span class=\"token punctuation\">,<\/span>n2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t\t\t<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\n\t\t\t<span class=\"token punctuation\">}<\/span>\n\t\t\tx<span class=\"token operator\">=<\/span>n2<span class=\"token operator\">\/<\/span>n1<span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token punctuation\">}<\/span>\n\t\ts1<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n\tcout<span class=\"token operator\">&lt;&lt;<\/span>s1<span class=\"token punctuation\">.<\/span><span class=\"token function\">top<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&lt;&lt;<\/span>endl<span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"L2-1 \u7b80\u5355\u8ba1\u7b97\u5668L2-1\u7b80\u5355\u8ba1\u7b97\u5668\u672c\u9898\u8981\u6c42\u4f60\u4e3a\u521d\u5b66\u6570\u636e\u7ed3\u6784\u7684\u5c0f\u4f19\u4f34\u8bbe\u8ba1\u4e00\u6b3e\u7b80\u5355\u7684\u5229\u7528\u5806\u6808\u6267\u884c\u7684\u8ba1\u7b97\u5668","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/9215"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=9215"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/9215\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=9215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=9215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=9215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}