{"id":53439,"date":"2025-08-12T11:40:02","date_gmt":"2025-08-12T03:40:02","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/53439.html"},"modified":"2025-08-12T11:40:02","modified_gmt":"2025-08-12T03:40:02","slug":"%e5%8d%8e%e4%b8%baod%e6%9c%ba%e8%80%83-2025c%e5%8d%b7-%e6%9c%80%e5%b7%a6%e4%be%a7%e5%86%97%e4%bd%99%e8%a6%86%e7%9b%96%e5%ad%90%e4%b8%b2-c-python-java-js-go","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/53439.html","title":{"rendered":"\u534e\u4e3aOD\u673a\u8003 2025C\u5377 - \u6700\u5de6\u4fa7\u5197\u4f59\u8986\u76d6\u5b50\u4e32 (C++ &amp; Python &amp; JAVA &amp; JS &amp; GO)"},"content":{"rendered":"<h2>\u6700\u5de6\u4fa7\u5197\u4f59\u8986\u76d6\u5b50\u4e32<\/h2>\n<p>\u534e\u4e3aOD\u673a\u8bd5\u771f\u9898\u76ee\u5f55\u70b9\u51fb\u67e5\u770b:  \u534e\u4e3aOD\u673a\u8bd52025C\u5377\u771f\u9898\u9898\u5e93\u76ee\u5f55&#xff5c;\u673a\u8003\u9898\u5e93 &#043; \u7b97\u6cd5\u8003\u70b9\u8be6\u89e3<\/p>\n<p>\u534e\u4e3aOD\u673a\u8bd5 2025C\u5377 100\u5206\u9898\u578b<\/p>\n<h2>\u9898\u76ee\u63cf\u8ff0<\/h2>\n<p>\u7ed9\u5b9a\u4e24\u4e2a\u5b57\u7b26\u4e32s1\u548cs2\u548c\u6b63\u6574\u6570K&#xff0c;\u5176\u4e2ds1\u957f\u5ea6\u4e3an1&#xff0c;s2\u957f\u5ea6\u4e3an2&#xff0c;\u5728s2\u4e2d\u9009\u4e00\u4e2a\u5b50\u4e32&#xff0c;\u6ee1\u8db3:<\/p>\n<ul>\n<li>\u8be5\u5b50\u4e32\u957f\u5ea6\u4e3an1&#043;k<\/li>\n<li>\u8be5\u5b50\u4e32\u4e2d\u5305\u542bs1\u4e2d\u5168\u90e8\u5b57\u6bcd&#xff0c;<\/li>\n<li>\u8be5\u5b50\u4e32\u6bcf\u4e2a\u5b57\u6bcd\u51fa\u73b0\u6b21\u6570\u4e0d\u5c0f\u4e8es1\u4e2d\u5bf9\u5e94\u7684\u5b57\u6bcd&#xff0c;<\/li>\n<\/ul>\n<p>\u6211\u4eec\u79f0s2\u4ee5\u957f\u5ea6k\u5197\u4f59\u8986\u76d6s1&#xff0c;\u7ed9\u5b9as1&#xff0c;s2&#xff0c;k&#xff0c;\u6c42\u6700\u5de6\u4fa7\u7684s2\u4ee5\u957f\u5ea6k\u5197\u4f59\u8986\u76d6s1\u7684\u5b50\u4e32\u7684\u9996\u4e2a\u5143\u7d20\u7684\u4e0b\u6807&#xff0c;\u5982\u679c\u6ca1\u6709\u8fd4\u56de-1\u3002<\/p>\n<h2>\u8f93\u5165\u63cf\u8ff0<\/h2>\n<p>\u8f93\u5165\u4e09\u884c&#xff0c;\u7b2c\u4e00\u884c\u4e3as1&#xff0c;\u7b2c\u4e8c\u884c\u4e3as2&#xff0c;\u7b2c\u4e09\u884c\u4e3ak&#xff0c;s1\u548cs2\u53ea\u5305\u542b\u5c0f\u5199\u5b57\u6bcd<\/p>\n<h3>\u5907\u6ce8<\/h3>\n<ul>\n<li>0 \u2264 len(s1) \u2264 1000000<\/li>\n<li>0 \u2264 len(s2) \u2264 20000000<\/li>\n<li>0 \u2264 k \u2264 1000<\/li>\n<\/ul>\n<h2>\u8f93\u51fa\u63cf\u8ff0<\/h2>\n<p>\u6700\u5de6\u4fa7\u7684s2\u4ee5\u957f\u5ea6k\u5197\u4f59\u8986\u76d6s1\u7684\u5b50\u4e32\u9996\u4e2a\u5143\u7d20\u4e0b\u6807&#xff0c;\u5982\u679c\u6ca1\u6709\u8fd4\u56de-1<\/p>\n<h2>\u793a\u4f8b1<\/h2>\n<h3>\u8f93\u5165<\/h3>\n<p>ab<br \/>\naabcd<br \/>\n1<\/p>\n<h3>\u8f93\u51fa<\/h3>\n<p>0<\/p>\n<h3>\u8bf4\u660e<\/h3>\n<p>\u5b50\u4e32aab\u548cabc\u7b26\u5408\u8981\u6c42&#xff0c;\u7531\u4e8eaab\u5728abc\u7684\u5de6\u4fa7&#xff0c;\u56e0\u6b64\u8f93\u51faaab\u7684\u4e0b\u6807&#xff1a;0<\/p>\n<h2>\u793a\u4f8b2<\/h2>\n<h3>\u8f93\u5165<\/h3>\n<p>abc<br \/>\ndfs<br \/>\n10<\/p>\n<h3>\u8f93\u51fa<\/h3>\n<p>-1<\/p>\n<h3>\u8bf4\u660e<\/h3>\n<p>s2\u65e0\u6cd5\u8986\u76d6s1&#xff0c;\u8f93\u51fa -1<\/p>\n<h2>\u9898\u89e3<\/h2>\n<p>\u601d\u8def&#xff1a;\u9898\u89e3\u6d89\u53ca\u7b97\u6cd5\u6ed1\u52a8\u7a97\u53e3&#xff0c;\u7a97\u53e3\u5927\u5c0f\u4e3as1.length &#043; k<\/p>\n<ul>\n<li>\u4f7f\u7528remainingMatches \u4fdd\u5b58\u5f85\u5339\u914d\u7684\u5b57\u7b26\u6570\u91cf\u3002\u4f7f\u7528patternFreq\u7edf\u8ba1s1\u4e2d\u5404\u4e2a\u5b57\u6bcd\u7684\u51fa\u73b0\u7684\u6570\u91cf\u3002\u4f7f\u7528windowFreq\u7edf\u8ba1s2\u4f4d\u4e8e\u7a97\u53e3\u4e2d\u5404\u4e2a\u5b57\u6bcd\u7684\u51fa\u73b0\u7684\u6570\u91cf\u3002<\/li>\n<li>\u5177\u4f53\u6267\u884c\u8fc7\u7a0b\u4e00\u4e0b&#xff1a;\u5f53\u7a97\u53e3\u53f3\u79fb\u65f6\n<ul>\n<li>\u53f3\u8fb9\u754c\u53f3\u79fb(right&#043;&#043;)&#xff0c;\u589e\u52a0windowFreq[rightChar &#8211; &#039;a&#039;]&#043;&#043;;, \u5f53windowFreq[rightChar &#8211; &#039;a&#039;] &lt;&#061; patternFreq[rightChar &#8211; &#039;a&#039;]\u65f6&#xff0c;remainingMatches &#8211;.<\/li>\n<li>\u5de6\u8fb9\u754c\u53f3\u79fb\u4e4b\u524d&#xff0c;\u5224\u65adwindowFreq[leftChar &#8211; &#039;a&#039;] &lt;&#061; patternFreq[leftChar &#8211; &#039;a&#039;]\u5982\u679c\u6210\u7acb,remainingMatches&#043;&#043;, windowFreq[leftChar &#8211; &#039;a&#039;]&#8211;,left&#043;&#043;<\/li>\n<\/ul>\n<\/li>\n<li>\u5728\u7a97\u53e3\u79fb\u52a8\u8fc7\u7a0b&#xff0c;\u5b58\u5728remainingMatches &#061; 0 \u65f6&#xff0c;\u65e2\u6ee1\u8db3\u6761\u4ef6&#xff0c;\u8f93\u51fa\u8fd9\u65f6\u7684left\u65e2\u662f\u7ed3\u679c\u3002<\/li>\n<\/ul>\n<h3>c&#043;&#043;<\/h3>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;vector&gt;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><\/p>\n<p><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\">{<\/span><br \/>\n    string pattern<span class=\"token punctuation\">,<\/span> text<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">getline<\/span><span class=\"token punctuation\">(<\/span>cin<span class=\"token punctuation\">,<\/span> pattern<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8bfb\u53d6\u6a21\u5f0f\u4e32<\/span><br \/>\n    <span class=\"token function\">getline<\/span><span class=\"token punctuation\">(<\/span>cin<span class=\"token punctuation\">,<\/span> text<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/ \u8bfb\u53d6\u76ee\u6807\u6587\u672c<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> maxExtraChars<span class=\"token punctuation\">;<\/span><br \/>\n    cin <span class=\"token operator\">&gt;&gt;<\/span> maxExtraChars<span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u5141\u8bb8\u7684\u989d\u5916\u5b57\u7b26\u6570<\/span><\/p>\n<p>    <span class=\"token keyword\">int<\/span> startIndex <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    vector<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token function\">patternFreq<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">26<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8bb0\u5f55 pattern \u4e2d\u6bcf\u4e2a\u5b57\u7b26\u7684\u51fa\u73b0\u6b21\u6570<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span> c <span class=\"token operator\">:<\/span> pattern<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        patternFreq<span class=\"token punctuation\">[<\/span>c <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">int<\/span> left <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> right <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5f85\u9700\u8981\u5339\u914d\u5b57\u7b26\u6570\u91cf<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> remainingMatches <span class=\"token operator\">&#061;<\/span> pattern<span class=\"token punctuation\">.<\/span><span class=\"token function\">length<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    vector<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token function\">windowFreq<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">26<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8bb0\u5f55\u6ed1\u52a8\u7a97\u53e3\u4e2d\u7684\u5b57\u7b26\u51fa\u73b0\u6b21\u6570<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>right <span class=\"token operator\">&lt;<\/span> text<span class=\"token punctuation\">.<\/span><span class=\"token function\">length<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">char<\/span> rightChar <span class=\"token operator\">&#061;<\/span> text<span class=\"token punctuation\">[<\/span>right<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        windowFreq<span class=\"token punctuation\">[<\/span>rightChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>windowFreq<span class=\"token punctuation\">[<\/span>rightChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&#061;<\/span> patternFreq<span class=\"token punctuation\">[<\/span>rightChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            remainingMatches<span class=\"token operator\">&#8212;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>right <span class=\"token operator\">&#8211;<\/span> left <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span> <span class=\"token operator\">&gt;<\/span> pattern<span class=\"token punctuation\">.<\/span><span class=\"token function\">length<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> maxExtraChars<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">char<\/span> leftChar <span class=\"token operator\">&#061;<\/span> text<span class=\"token punctuation\">[<\/span>left<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>windowFreq<span class=\"token punctuation\">[<\/span>leftChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&#061;<\/span> patternFreq<span class=\"token punctuation\">[<\/span>leftChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                remainingMatches<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            windowFreq<span class=\"token punctuation\">[<\/span>leftChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#8212;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            left<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>remainingMatches <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            startIndex <span class=\"token operator\">&#061;<\/span> left<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        right<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    cout <span class=\"token operator\">&lt;&lt;<\/span> startIndex<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>Java<\/h3>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Main<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Scanner<\/span> scanner <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Scanner<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>in<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u8bfb\u53d6\u6a21\u5f0f\u4e32<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> pattern <span class=\"token operator\">&#061;<\/span> scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">nextLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u8bfb\u53d6\u76ee\u6807\u6587\u672c<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> text <span class=\"token operator\">&#061;<\/span> scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">nextLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5141\u8bb8\u7684\u989d\u5916\u5b57\u7b26\u6570<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> maxExtraChars <span class=\"token operator\">&#061;<\/span> scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">nextInt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">int<\/span> startIndex <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">int<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> patternFreq <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token keyword\">int<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">26<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bb0\u5f55 pattern \u4e2d\u6bcf\u4e2a\u5b57\u7b26\u7684\u51fa\u73b0\u6b21\u6570<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span> c <span class=\"token operator\">:<\/span> pattern<span class=\"token punctuation\">.<\/span><span class=\"token function\">toCharArray<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            patternFreq<span class=\"token punctuation\">[<\/span>c <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">int<\/span> left <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> right <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> remainingMatches <span class=\"token operator\">&#061;<\/span> pattern<span class=\"token punctuation\">.<\/span><span class=\"token function\">length<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5f85\u5339\u914d\u5b57\u7b26\u6570\u91cf<\/span><br \/>\n        <span class=\"token keyword\">int<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> windowFreq <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token keyword\">int<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">26<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bb0\u5f55\u6ed1\u52a8\u7a97\u53e3\u4e2d\u7684\u5b57\u7b26\u51fa\u73b0\u6b21\u6570<\/span><\/p>\n<p>        <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>right <span class=\"token operator\">&lt;<\/span> text<span class=\"token punctuation\">.<\/span><span class=\"token function\">length<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">char<\/span> rightChar <span class=\"token operator\">&#061;<\/span> text<span class=\"token punctuation\">.<\/span><span class=\"token function\">charAt<\/span><span class=\"token punctuation\">(<\/span>right<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            windowFreq<span class=\"token punctuation\">[<\/span>rightChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>windowFreq<span class=\"token punctuation\">[<\/span>rightChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&#061;<\/span> patternFreq<span class=\"token punctuation\">[<\/span>rightChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                remainingMatches<span class=\"token operator\">&#8212;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>right <span class=\"token operator\">&#8211;<\/span> left <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span> <span class=\"token operator\">&gt;<\/span> pattern<span class=\"token punctuation\">.<\/span><span class=\"token function\">length<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> maxExtraChars<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">char<\/span> leftChar <span class=\"token operator\">&#061;<\/span> text<span class=\"token punctuation\">.<\/span><span class=\"token function\">charAt<\/span><span class=\"token punctuation\">(<\/span>left<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>windowFreq<span class=\"token punctuation\">[<\/span>leftChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&#061;<\/span> patternFreq<span class=\"token punctuation\">[<\/span>leftChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    remainingMatches<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n                windowFreq<span class=\"token punctuation\">[<\/span>leftChar <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#8212;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                left<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>remainingMatches <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                startIndex <span class=\"token operator\">&#061;<\/span> left<span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            right<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>startIndex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>Python<\/h3>\n<p><span class=\"token keyword\">import<\/span> sys<\/p>\n<p><span class=\"token comment\"># \u8bfb\u53d6\u6a21\u5f0f\u4e32<\/span><br \/>\npattern <span class=\"token operator\">&#061;<\/span> sys<span class=\"token punctuation\">.<\/span>stdin<span class=\"token punctuation\">.<\/span>readline<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>strip<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u8bfb\u53d6\u76ee\u6807\u6587\u672c<\/span><br \/>\ntext <span class=\"token operator\">&#061;<\/span> sys<span class=\"token punctuation\">.<\/span>stdin<span class=\"token punctuation\">.<\/span>readline<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>strip<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u5141\u8bb8\u7684\u989d\u5916\u5b57\u7b26\u6570<\/span><br \/>\nmax_extra_chars <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>sys<span class=\"token punctuation\">.<\/span>stdin<span class=\"token punctuation\">.<\/span>readline<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>strip<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>pattern_freq <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">26<\/span>  <span class=\"token comment\"># \u8bb0\u5f55 pattern \u4e2d\u6bcf\u4e2a\u5b57\u7b26\u7684\u51fa\u73b0\u6b21\u6570<\/span><br \/>\n<span class=\"token keyword\">for<\/span> c <span class=\"token keyword\">in<\/span> pattern<span class=\"token punctuation\">:<\/span><br \/>\n    pattern_freq<span class=\"token punctuation\">[<\/span><span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span>c<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">1<\/span><\/p>\n<p>left<span class=\"token punctuation\">,<\/span> right <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><br \/>\nremaining_matches <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>pattern<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u5f85\u5339\u914d\u5b57\u7b26\u6570\u91cf<\/span><br \/>\nwindow_freq <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">26<\/span>  <span class=\"token comment\"># \u8bb0\u5f55\u6ed1\u52a8\u7a97\u53e3\u4e2d\u7684\u5b57\u7b26\u51fa\u73b0\u6b21\u6570<\/span><br \/>\nstart_index <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><\/p>\n<p><span class=\"token keyword\">while<\/span> right <span class=\"token operator\">&lt;<\/span> <span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>text<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    right_char <span class=\"token operator\">&#061;<\/span> text<span class=\"token punctuation\">[<\/span>right<span class=\"token punctuation\">]<\/span><br \/>\n    window_freq<span class=\"token punctuation\">[<\/span><span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span>right_char<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">1<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> window_freq<span class=\"token punctuation\">[<\/span><span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span>right_char<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&#061;<\/span> pattern_freq<span class=\"token punctuation\">[<\/span><span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span>right_char<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        remaining_matches <span class=\"token operator\">-&#061;<\/span> <span class=\"token number\">1<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> right <span class=\"token operator\">&#8211;<\/span> left <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>pattern<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> max_extra_chars<span class=\"token punctuation\">:<\/span><br \/>\n        left_char <span class=\"token operator\">&#061;<\/span> text<span class=\"token punctuation\">[<\/span>left<span class=\"token punctuation\">]<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> window_freq<span class=\"token punctuation\">[<\/span><span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span>left_char<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&#061;<\/span> pattern_freq<span class=\"token punctuation\">[<\/span><span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span>left_char<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            remaining_matches <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">1<\/span><br \/>\n        window_freq<span class=\"token punctuation\">[<\/span><span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span>left_char<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token builtin\">ord<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">-&#061;<\/span> <span class=\"token number\">1<\/span><br \/>\n        left <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">1<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> remaining_matches <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        start_index <span class=\"token operator\">&#061;<\/span> left<br \/>\n        <span class=\"token keyword\">break<\/span><\/p>\n<p>    right <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">1<\/span><\/p>\n<p><span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>start_index<span class=\"token punctuation\">)<\/span><\/p>\n<h3>JavaScript<\/h3>\n<p><span class=\"token keyword\">const<\/span> readline <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;readline&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">const<\/span> rl <span class=\"token operator\">&#061;<\/span> readline<span class=\"token punctuation\">.<\/span><span class=\"token function\">createInterface<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n    input<span class=\"token operator\">:<\/span> process<span class=\"token punctuation\">.<\/span>stdin<span class=\"token punctuation\">,<\/span><br \/>\n    output<span class=\"token operator\">:<\/span> process<span class=\"token punctuation\">.<\/span>stdout<br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">let<\/span> inputLines <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\nrl<span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;line&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">line<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    inputLines<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>line<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>inputLines<span class=\"token punctuation\">.<\/span>length <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        rl<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>rl<span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;close&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> pattern <span class=\"token operator\">&#061;<\/span> inputLines<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8bfb\u53d6\u6a21\u5f0f\u4e32<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> text <span class=\"token operator\">&#061;<\/span> inputLines<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8bfb\u53d6\u76ee\u6807\u6587\u672c<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> maxExtraChars <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">parseInt<\/span><span class=\"token punctuation\">(<\/span>inputLines<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5141\u8bb8\u7684\u989d\u5916\u5b57\u7b26\u6570<\/span><\/p>\n<p>    <span class=\"token keyword\">let<\/span> patternFreq <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">Array<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">26<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">fill<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8bb0\u5f55 pattern \u4e2d\u6bcf\u4e2a\u5b57\u7b26\u7684\u51fa\u73b0\u6b21\u6570<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">let<\/span> c <span class=\"token keyword\">of<\/span> pattern<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        patternFreq<span class=\"token punctuation\">[<\/span>c<span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">let<\/span> left <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> right <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> remainingMatches <span class=\"token operator\">&#061;<\/span> pattern<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> windowFreq <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">Array<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">26<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">fill<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8bb0\u5f55\u6ed1\u52a8\u7a97\u53e3\u4e2d\u7684\u5b57\u7b26\u51fa\u73b0\u6b21\u6570<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> startIndex <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>right <span class=\"token operator\">&lt;<\/span> text<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">let<\/span> rightChar <span class=\"token operator\">&#061;<\/span> text<span class=\"token punctuation\">[<\/span>right<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        windowFreq<span class=\"token punctuation\">[<\/span>rightChar<span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>windowFreq<span class=\"token punctuation\">[<\/span>rightChar<span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&#061;<\/span> patternFreq<span class=\"token punctuation\">[<\/span>rightChar<span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            remainingMatches<span class=\"token operator\">&#8212;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>right <span class=\"token operator\">&#8211;<\/span> left <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span> <span class=\"token operator\">&gt;<\/span> pattern<span class=\"token punctuation\">.<\/span>length <span class=\"token operator\">&#043;<\/span> maxExtraChars<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">let<\/span> leftChar <span class=\"token operator\">&#061;<\/span> text<span class=\"token punctuation\">[<\/span>left<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>windowFreq<span class=\"token punctuation\">[<\/span>leftChar<span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&#061;<\/span> patternFreq<span class=\"token punctuation\">[<\/span>leftChar<span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                remainingMatches<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            windowFreq<span class=\"token punctuation\">[<\/span>leftChar<span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">charCodeAt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#8212;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            left<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>remainingMatches <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            startIndex <span class=\"token operator\">&#061;<\/span> left<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        right<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>startIndex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h3>Go<\/h3>\n<p><span class=\"token keyword\">package<\/span> main<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">(<\/span><br \/>\n<span class=\"token string\">&#034;bufio&#034;<\/span><br \/>\n<span class=\"token string\">&#034;fmt&#034;<\/span><br \/>\n<span class=\"token string\">&#034;os&#034;<\/span><br \/>\n<span class=\"token string\">&#034;strconv&#034;<\/span><br \/>\n<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/ \u4f7f\u7528 bufio.Scanner \u8bfb\u53d6\u5927\u6570\u636e<\/span><br \/>\nscanner <span class=\"token operator\">:&#061;<\/span> bufio<span class=\"token punctuation\">.<\/span><span class=\"token function\">NewScanner<\/span><span class=\"token punctuation\">(<\/span>os<span class=\"token punctuation\">.<\/span>Stdin<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8bfb\u53d6\u6a21\u5f0f\u4e32<\/span><br \/>\nscanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">Scan<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\npattern <span class=\"token operator\">:&#061;<\/span> scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">Text<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8bfb\u53d6\u76ee\u6807\u6587\u672c<\/span><br \/>\nscanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">Scan<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\ntext <span class=\"token operator\">:&#061;<\/span> scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">Text<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8bfb\u53d6\u5141\u8bb8\u7684\u989d\u5916\u5b57\u7b26\u6570 k<\/span><br \/>\nscanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">Scan<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\nmaxExtraChars<span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">_<\/span> <span class=\"token operator\">:&#061;<\/span> strconv<span class=\"token punctuation\">.<\/span><span class=\"token function\">Atoi<\/span><span class=\"token punctuation\">(<\/span>scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">Text<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8bb0\u5f55 pattern \u4e2d\u6bcf\u4e2a\u5b57\u7b26\u7684\u51fa\u73b0\u6b21\u6570<\/span><br \/>\npatternFreq <span class=\"token operator\">:&#061;<\/span> <span class=\"token function\">make<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token builtin\">int<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">26<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token boolean\">_<\/span><span class=\"token punctuation\">,<\/span> c <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> pattern <span class=\"token punctuation\">{<\/span><br \/>\npatternFreq<span class=\"token punctuation\">[<\/span>c<span class=\"token operator\">&#8211;<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#043;&#043;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>left<span class=\"token punctuation\">,<\/span> right <span class=\"token operator\">:&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><br \/>\nremainingMatches <span class=\"token operator\">:&#061;<\/span> <span class=\"token function\">len<\/span><span class=\"token punctuation\">(<\/span>pattern<span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u5f85\u5339\u914d\u5b57\u7b26\u6570\u91cf<\/span><br \/>\nwindowFreq <span class=\"token operator\">:&#061;<\/span> <span class=\"token function\">make<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token builtin\">int<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">26<\/span><span class=\"token punctuation\">)<\/span>    <span class=\"token comment\">\/\/ \u8bb0\u5f55\u6ed1\u52a8\u7a97\u53e3\u4e2d\u7684\u5b57\u7b26\u51fa\u73b0\u6b21\u6570<\/span><br \/>\nstartIndex <span class=\"token operator\">:&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><\/p>\n<p><span class=\"token keyword\">for<\/span> right <span class=\"token operator\">&lt;<\/span> <span class=\"token function\">len<\/span><span class=\"token punctuation\">(<\/span>text<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\nrightChar <span class=\"token operator\">:&#061;<\/span> text<span class=\"token punctuation\">[<\/span>right<span class=\"token punctuation\">]<\/span><br \/>\nwindowFreq<span class=\"token punctuation\">[<\/span>rightChar<span class=\"token operator\">&#8211;<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#043;&#043;<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> windowFreq<span class=\"token punctuation\">[<\/span>rightChar<span class=\"token operator\">&#8211;<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&#061;<\/span> patternFreq<span class=\"token punctuation\">[<\/span>rightChar<span class=\"token operator\">&#8211;<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token punctuation\">{<\/span><br \/>\nremainingMatches<span class=\"token operator\">&#8212;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> right<span class=\"token operator\">&#8211;<\/span>left<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token function\">len<\/span><span class=\"token punctuation\">(<\/span>pattern<span class=\"token punctuation\">)<\/span><span class=\"token operator\">&#043;<\/span>maxExtraChars <span class=\"token punctuation\">{<\/span><br \/>\nleftChar <span class=\"token operator\">:&#061;<\/span> text<span class=\"token punctuation\">[<\/span>left<span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token keyword\">if<\/span> windowFreq<span class=\"token punctuation\">[<\/span>leftChar<span class=\"token operator\">&#8211;<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&#061;<\/span> patternFreq<span class=\"token punctuation\">[<\/span>leftChar<span class=\"token operator\">&#8211;<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token punctuation\">{<\/span><br \/>\nremainingMatches<span class=\"token operator\">&#043;&#043;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\nwindowFreq<span class=\"token punctuation\">[<\/span>leftChar<span class=\"token operator\">&#8211;<\/span><span class=\"token string\">&#039;a&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token operator\">&#8212;<\/span><br \/>\nleft<span class=\"token operator\">&#043;&#043;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> remainingMatches <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span> <span class=\"token punctuation\">{<\/span><br \/>\nstartIndex <span class=\"token operator\">&#061;<\/span> left<br \/>\n<span class=\"token keyword\">break<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>right<span class=\"token operator\">&#043;&#043;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Println<\/span><span class=\"token punctuation\">(<\/span>startIndex<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb156\u6b21\uff0c\u70b9\u8d5e5\u6b21\uff0c\u6536\u85cf2\u6b21\u3002\u534e\u4e3aOD\u673a\u8bd52025C\u5377  \u6700\u5de6\u4fa7\u5197\u4f59\u8986\u76d6\u5b50\u4e32 \u63d0\u4f9bJava\u3001C++\u3001Python\u3001Go\u3001JavaScript\u6e90\u7801\u5b9e\u73b0\uff0c\u5e76\u63d0\u4f9b\u5b8c\u6574\u601d\u8def\u8bb2\u89e3<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[447,5422,5421,5423,5420],"topic":[],"class_list":["post-53439","post","type-post","status-publish","format-standard","hentry","category-server","tag-od","tag-od-2025c","tag-od2025c"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u534e\u4e3aOD\u673a\u8003 2025C\u5377 - \u6700\u5de6\u4fa7\u5197\u4f59\u8986\u76d6\u5b50\u4e32 (C++ &amp; Python &amp; JAVA &amp; JS &amp; GO) - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/53439.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u534e\u4e3aOD\u673a\u8003 2025C\u5377 - \u6700\u5de6\u4fa7\u5197\u4f59\u8986\u76d6\u5b50\u4e32 (C++ &amp; Python &amp; JAVA &amp; JS &amp; GO) - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb156\u6b21\uff0c\u70b9\u8d5e5\u6b21\uff0c\u6536\u85cf2\u6b21\u3002\u534e\u4e3aOD\u673a\u8bd52025C\u5377 \u6700\u5de6\u4fa7\u5197\u4f59\u8986\u76d6\u5b50\u4e32 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