{"id":44832,"date":"2025-06-21T06:05:38","date_gmt":"2025-06-20T22:05:38","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/44832.html"},"modified":"2025-06-21T06:05:38","modified_gmt":"2025-06-20T22:05:38","slug":"acm%e6%a8%a1%e5%bc%8f%e4%b8%8b%e7%ae%97%e6%b3%95%e9%a2%98%e8%be%93%e5%85%a5%e8%be%93%e5%87%ba%e6%94%bb%e7%95%a5%e3%80%90c%e3%80%91","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/44832.html","title":{"rendered":"ACM\u6a21\u5f0f\u4e0b\u7b97\u6cd5\u9898\u8f93\u5165\u8f93\u51fa\u653b\u7565\u3010C++\u3011"},"content":{"rendered":"<h3>\n<h3>\u6587\u7ae0\u76ee\u5f55<\/h3>\n<ul>\n<li>\n<ul>\n<li>&#064;[TOC]<\/li>\n<\/ul>\n<\/li>\n<li>1. \u6838\u5fc3\u4ee3\u7801\u6a21\u5f0f\u4e0eACM\u6a21\u5f0f<\/li>\n<li>\n<ul>\n<li>1.1 ACM\u6a21\u5f0f\u4ecb\u7ecd<\/li>\n<li>1.2 \u6ce8\u610f\u4e8b\u9879<\/li>\n<\/ul>\n<\/li>\n<li>2. C&#043;&#043;\u5e38\u7528\u7684\u8f93\u5165\u8f93\u51fa\u65b9\u6cd5<\/li>\n<li>\n<ul>\n<li>\n<ul>\n<li>2.1 \u8f93\u5165<\/li>\n<li>\n<ul>\n<li>2.1.1 &#096;cin&#096;<\/li>\n<li>\u6ce8\u610f\u4e8b\u9879<\/li>\n<li>2.1.2 &#096;getline()&#096;<\/li>\n<li>\u6ce8\u610f\u4e8b\u9879<\/li>\n<li>2.1.3 &#096;getchar()&#096;<\/li>\n<li>\u6ce8\u610f\u4e8b\u9879<\/li>\n<\/ul>\n<\/li>\n<li>2.2 \u8f93\u51fa<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>3. \u6848\u4f8b<\/li>\n<li>\n<ul>\n<li>3.1 \u4e00\u7ef4\u6570\u7ec4\u8f93\u5165<\/li>\n<li>\n<ul>\n<li>3.1.1 \u56fa\u5b9a\u957f\u5ea6\u7684\u4e00\u7ef4\u6570\u7ec4<\/li>\n<li>3.1.2 \u4e0d\u56fa\u5b9a\u957f\u5ea6\u7684\u4e00\u7ef4\u6570\u7ec4<\/li>\n<\/ul>\n<\/li>\n<li>3.2 \u4e8c\u7ef4\u6570\u7ec4\u8f93\u5165<\/li>\n<li>\n<ul>\n<li>3.2.1 \u5e38\u89c4\u6a21\u5f0f\u7684\u4e8c\u7ef4\u6570\u7ec4\u8f93\u5165<\/li>\n<li>3.2.2 \u6bcf\u884c\u6570\u636e\u7528\u9017\u53f7\u5206\u9694\u7684\u4e8c\u7ef4\u6570\u7ec4\u8f93\u5165<\/li>\n<\/ul>\n<\/li>\n<li>3.3 \u5b57\u7b26\u4e32\u8f93\u5165<\/li>\n<li>\n<ul>\n<li>3.3.1 \u5355\u5b57\u7b26\u4e32\u8f93\u5165<\/li>\n<li>3.3.2 \u591a\u5b57\u7b26\u4e32\u8f93\u5165&#xff08;\u56fa\u5b9a\u4e2a\u6570&#xff09;<\/li>\n<li>3.3.3 \u591a\u5b57\u7b26\u4e32\u8f93\u5165&#xff08;\u4e0d\u56fa\u5b9a\u4e2a\u6570&#xff09;<\/li>\n<li>3.3.4 \u5b57\u7b26\u4e32\u8f6c\u6574\u6570\u6570\u7ec4<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>4. ACM\u6a21\u5f0f\u7ec3\u4e60\u5e73\u53f0<\/li>\n<li>\n<ul>\n<li>4.1 \u7ec3\u4e60\u5e73\u53f0\u63a8\u8350<\/li>\n<li>4.2 \u5b9e\u6218\u5e73\u53f0\u6848\u4f8b<\/li>\n<\/ul>\n<\/li>\n<li>5. \u5e38\u89c1\u6570\u636e\u7ed3\u6784\u5b9a\u4e49<\/li>\n<li>\n<ul>\n<li>5.1 \u94fe\u8868<\/li>\n<li>5.2 \u4e8c\u53c9\u6811<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/h3>\n<p>\u516b\u6708\u4efd\u5feb\u7ed3\u675f\u4e86&#xff0c;\u79cb\u62db\u63d0\u524d\u6279\u548c\u79cb\u62db\u4e5f\u9646\u7eed\u5f00\u59cb\u4e86\u3002\u5728\u4e00\u822c\u5927\u5382\u7b14\u8bd5\u4e2d\u90fd\u4f1a\u8981\u6c42\u624b\u6495\u7b97\u6cd5&#xff0c;\u5982\u679c\u7b97\u6cd5\u6b63\u786e&#xff0c;\u6700\u540e\u8f93\u51fa\u7684\u65f6\u5019\u6ca1\u89e3\u51b3\u597d\u5c31\u5f88\u5403\u4e8f\u5566~\u6240\u4ee5\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u5e26\u4f60\u8be6\u7ec6\u7406\u89e3\u6838\u5fc3\u4ee3\u7801\u6a21\u5f0f\u4e0eACM\u6a21\u5f0f\u4e0b\u9700\u8981\u6ce8\u610f\u7684\u4e8b\u9879\u3002<\/p>\n<\/p>\n<h2>1. \u6838\u5fc3\u4ee3\u7801\u6a21\u5f0f\u4e0eACM\u6a21\u5f0f<\/h2>\n<\/p>\n<h3>1.1 ACM\u6a21\u5f0f\u4ecb\u7ecd<\/h3>\n<p>\u5728\u7f16\u7a0b\u7ade\u8d5b\u548c\u7b14\u8bd5\u4e2d&#xff0c;ACM\u6a21\u5f0f\u662f\u5e38\u89c1\u7684\u8981\u6c42&#xff0c;\u5b83\u9700\u8981\u6211\u4eec\u7f16\u5199\u5b8c\u6574\u7684\u7a0b\u5e8f\u6765\u5904\u7406\u8f93\u5165\u8f93\u51fa\u3002\u4e0e\u5e73\u53f0\u4e0a\u7684\u6838\u5fc3\u4ee3\u7801\u6a21\u5f0f\u4e0d\u540c&#xff0c;ACM\u6a21\u5f0f\u901a\u5e38\u8981\u6c42\u6211\u4eec\u5904\u7406\u6807\u51c6\u8f93\u5165\u8f93\u51fa\u5e76\u5b8c\u6574\u5b9e\u73b0\u89e3\u51b3\u65b9\u6848\u3002\u6838\u5fc3\u4ee3\u7801\u6a21\u5f0f\u53ea\u9700\u8981\u63d0\u4ea4\u6838\u5fc3\u7b97\u6cd5\u90e8\u5206&#xff08;\u901a\u5e38\u662f\u67d0\u4e00\u4e2a\u51fd\u6570&#xff09;&#xff0c;\u800cACM\u6a21\u5f0f\u9700\u8981\u5904\u7406\u6574\u4e2a\u7a0b\u5e8f(\u5305\u62ecmain\u51fd\u6570)&#xff0c;\u5305\u62ec\u8f93\u5165\u8f93\u51fa\u548c\u5176\u4ed6\u7a0b\u5e8f\u7ed3\u6784\u3002 <\/p>\n<h3>1.2 \u6ce8\u610f\u4e8b\u9879<\/h3>\n<li>\u7b14\u8bd5\u5e73\u53f0\u719f\u6089\u5ea6&#xff1a;\u719f\u6089\u5e38\u89c1\u7684\u7b14\u8bd5\u5e73\u53f0&#xff08;\u5982\u725b\u5ba2\u7f51\u3001\u8d5b\u7801&#xff09;\u53ef\u4ee5\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u5e94\u5bf9\u7b14\u8bd5\u4e2d\u7684\u8f93\u5165\u8f93\u51fa\u8981\u6c42\u3002<\/li>\n<li>\u81ea\u5b9a\u4e49\u6d4b\u8bd5\u7528\u4f8b\u7684\u91cd\u8981\u6027&#xff1a;\u6709\u4e9b\u7b14\u8bd5&#xff0c;\u4f1a\u8ba9\u54b1\u4eec\u81ea\u5df1\u8bbe\u8ba1\u6d4b\u8bd5\u7528\u4f8b&#xff0c; \u5e73\u65f6\u5728\u7ec3\u4e60\u7684\u65f6\u5019\u4e5f\u8981\u6ce8\u610f\u4e00\u4e0b\u3002\u5728\u7f16\u5199\u7b97\u6cd5\u65f6&#xff0c;\u81ea\u5b9a\u4e49\u6d4b\u8bd5\u7528\u4f8b\u53ef\u4ee5\u5e2e\u52a9\u4f60\u9a8c\u8bc1\u4ee3\u7801\u7684\u6b63\u786e\u6027\u3002\u8bbe\u8ba1\u6d4b\u8bd5\u7528\u4f8b\u65f6&#xff0c;\u5e94\u8003\u8651\u4e0d\u540c\u7684\u8f93\u5165\u573a\u666f\u548c\u8fb9\u754c\u6761\u4ef6\u3002<\/li>\n<li>\u9762\u8bd5\u4e2d\u7684\u8f93\u5165\u8f93\u51fa\u548c\u6d4b\u8bd5\u7528\u4f8b\u8981\u6c42&#xff1a;\u9762\u8bd5\u5b98\u53ef\u80fd\u4f1a\u8981\u6c42\u4f60\u5728\u7f16\u5199\u4ee3\u7801\u540e\u81ea\u5b9a\u4e49\u6d4b\u8bd5\u7528\u4f8b\u4ee5\u9a8c\u8bc1\u4ee3\u7801\u7684\u6b63\u786e\u6027&#xff0c;\u56e0\u6b64\u638c\u63e1\u8f93\u5165\u8f93\u51fa\u5904\u7406\u6280\u5de7\u975e\u5e38\u91cd\u8981\u3002<\/li>\n<p>\u9762\u8bd5\u624b\u6495\u4ee3\u7801\u7684\u51e0\u79cd\u5f62\u5f0f&#xff1a; 1.\u5e73\u53f0\u7c7b \u53bb\u9762\u8bd5\u5b98\u7ed9\u5b9a\u7684\u5e73\u53f0\u4e0a\u53bb\u9762\u8bd5&#xff0c;\u4e0a\u9762\u53ef\u4ee5\u7f16\u5199\u4ee3\u7801&#xff0c;\u8c03\u8bd5\u548c\u8fd0\u884c&#xff0c;\u8fd9\u4e9b\u5e73\u53f0\u6709\u7684\u5199\u597d\u4e86\u51fd\u6570\u6846\u67b6&#xff0c;\u6709\u7684\u662f\u767d\u677f&#xff0c;\u9700\u8981\u81ea\u5df1\u5199\u5168\u90e8\u5185\u5bb9 2.\u81ea\u5df1\u7684IDE \u9762\u8bd5\u5b98\u8981\u6c42\u5019\u9009\u4eba\u6253\u5f00\u81ea\u5df1\u7684ide&#xff0c;\u5e76\u5171\u4eab\u684c\u9762\u8fdb\u884c\u7f16\u5199&#xff0c;\u8fd9\u79cd\u80af\u5b9a\u662f\u8981\u81ea\u5df1\u5199\u5168\u8f93\u5165\u8f93\u51fa\u4e86 3.\u8981\u6c42\u8865\u9f50\u6d4b\u8bd5\u7528\u4f8b \u6709\u4e9b\u9762\u8bd5\u5b98&#xff0c;\u6bd4\u5982\u5fae\u8f6f\u7684\u9762\u8bd5\u5b98&#xff0c;\u53ef\u80fd\u4f1a\u8ba9\u4f60\u5199\u5b8c\u4ee3\u7801\u540e&#xff0c;\u81ea\u5df1\u8bbe\u8ba1\u5c3d\u53ef\u80fd\u5168\u9762\u7684\u6d4b\u8bd5\u7528\u4f8b&#xff0c;\u5bf9\u4f60\u7f16\u5199\u7684\u4ee3\u7801\u8fdb\u884c\u6d4b\u8bd5\u3002 \u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u6765\u6e90&#xff1a;\u725b\u5ba2\u7f51<\/p>\n<\/p>\n<h2>2. C&#043;&#043;\u5e38\u7528\u7684\u8f93\u5165\u8f93\u51fa\u65b9\u6cd5<\/h2>\n<\/p>\n<h4>2.1 \u8f93\u5165<\/h4>\n<p>\u5728C&#043;&#043;\u8bed\u8a00\u4e2d&#xff0c;\u6807\u51c6\u8f93\u5165\u64cd\u4f5c\u9700\u8981\u5305\u542b\u5934\u6587\u4ef6&lt;iostream&gt;\u3002\u4ee5\u4e0b\u662fC&#043;&#043;\u4e2d\u5e38\u7528\u7684\u51e0\u79cd\u6807\u51c6\u8f93\u5165\u65b9\u6cd5&#xff0c;\u4ee5\u53ca\u5b83\u4eec\u7684\u7279\u70b9\u548c\u4f7f\u7528\u65b9\u5f0f\u3002\u4e0b\u9762\u8fd9\u5217\u4e86\u51e0\u4e2a\u5e38\u7528\u7684&#xff0c;\u719f\u7ec3\u638c\u63e1\u4e0b\u9762\u8fd9\u51e0\u4e2a\u5c31\u591f\u4e86&#xff0c;\u5982\u679c\u5b66\u6709\u4f59\u529b\u53ef\u4ee5\u53bb\u5b98\u65b9\u6587\u6863\u67e5\u770b\u66f4\u591a\u7684\u8f93\u5165\u8f93\u51fa\u51fd\u6570\u3002 <\/p>\n<h5>2.1.1 cin<\/h5>\n<p>cin\u662fC&#043;&#043;\u4e2d\u6700\u5e38\u7528\u7684\u6807\u51c6\u8f93\u5165\u6d41\u5bf9\u8c61\u3002\u5b83\u7684\u57fa\u672c\u539f\u7406\u662f\u901a\u8fc7\u4e00\u4e2a\u7f13\u51b2\u533a&#xff08;Buffer&#xff09;\u6765\u5b58\u50a8\u952e\u76d8\u8f93\u5165\u7684\u6570\u636e&#xff0c;cin\u5219\u4ece\u8fd9\u4e2a\u7f13\u51b2\u533a\u4e2d\u8bfb\u53d6\u6570\u636e\u3002\u6ce8\u610f\u4e8b\u9879&#xff1a;<\/p>\n<li>cin\u53ef\u4ee5\u8fde\u7eed\u4ece\u952e\u76d8\u8bfb\u53d6\u591a\u4e2a\u6570\u636e\u3002<\/li>\n<li>cin\u4ee5\u7a7a\u683c\u3001Tab\u952e\u548c\u6362\u884c\u7b26\u4f5c\u4e3a\u8f93\u5165\u7684\u5206\u9694\u7b26\u3002<\/li>\n<li>cin\u4ece\u7b2c\u4e00\u4e2a\u975e\u7a7a\u767d\u5b57\u7b26\u5f00\u59cb\u8bfb\u53d6&#xff0c;\u76f4\u5230\u9047\u5230\u5206\u9694\u7b26\u4e3a\u6b62\u3002<\/li>\n<p>\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<ul>\n<li>\u5355\u72ec\u8bfb\u5165\u4e00\u4e2a\u6570\u636e&#xff1a;<\/li>\n<\/ul>\n<p><span class=\"token keyword\">int<\/span> num<span class=\"token punctuation\">;<\/span><br \/>\ncin <span class=\"token operator\">&gt;&gt;<\/span> num<span class=\"token punctuation\">;<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> num <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8f93\u51fa\u8bfb\u5165\u7684\u6574\u6570num<\/span><\/p>\n<p>\u5e94\u7528\u573a\u666f&#xff1a; \u5f53\u9898\u76ee\u8981\u6c42\u8f93\u5165\u4e00\u4e2a\u6574\u6570\u5e76\u5904\u7406\u65f6&#xff0c;\u8fd9\u662f\u6700\u57fa\u672c\u7684\u7528\u6cd5\u3002<\/p>\n<ul>\n<li>\u6279\u91cf\u8bfb\u5165\u591a\u4e2a\u6570\u636e&#xff1a;<\/li>\n<\/ul>\n<p>vector<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token function\">nums<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> nums<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    cin <span class=\"token operator\">&gt;&gt;<\/span> nums<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8f93\u51fa\u8bfb\u5165\u7684\u6570\u7ec4<\/span><br \/>\n<span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> nums<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> nums<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5e94\u7528\u573a\u666f&#xff1a; \u5e38\u7528\u4e8e\u8bfb\u53d6\u4e00\u7ec4\u6574\u6570&#xff0c;\u6bd4\u5982\u6570\u7ec4\u6216\u5e8f\u5217\u3002<\/p>\n<ul>\n<li>\u5904\u7406\u591a\u7ec4\u8f93\u5165&#xff1a;<\/li>\n<\/ul>\n<p><span class=\"token keyword\">int<\/span> a<span class=\"token punctuation\">,<\/span>b<br \/>\n<span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span>cin<span class=\"token operator\">&gt;&gt;<\/span>a<span class=\"token operator\">&gt;&gt;<\/span>b<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n    cout<span class=\"token operator\">&lt;&lt;<\/span>a<span class=\"token operator\">&#043;<\/span>b<span class=\"token operator\">&lt;&lt;<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5e94\u7528\u573a\u666f&#xff1a; \u5904\u7406\u591a\u7ec4\u8f93\u5165&#xff0c;\u76f4\u5230\u6587\u4ef6\u7ed3\u675f&#xff08;EOF&#xff09;\u3002\u8fd9\u79cd\u7528\u6cd5\u5e38\u89c1\u4e8e\u9700\u8981\u8fde\u7eed\u5904\u7406\u591a\u7ec4\u6d4b\u8bd5\u6570\u636e\u7684\u9898\u76ee\u3002 <\/p>\n<h5>\u6ce8\u610f\u4e8b\u9879<\/h5>\n<ul>\n<li>cin \u4f1a\u5ffd\u7565\u8f93\u5165\u4e2d\u7684\u7a7a\u683c\u3001Tab \u548c\u6362\u884c\u7b26\u3002<\/li>\n<li>\u5f53\u9047\u5230\u7a7a\u683c\u3001Tab \u6216\u6362\u884c\u7b26\u65f6&#xff0c;cin \u4f1a\u7ed3\u675f\u5f53\u524d\u53d8\u91cf\u7684\u8bfb\u53d6&#xff0c;\u5e76\u5f00\u59cb\u8bfb\u53d6\u4e0b\u4e00\u4e2a\u53d8\u91cf\u3002 <\/li>\n<\/ul>\n<h5>2.1.2 getline()<\/h5>\n<p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b&#xff0c;cin\u65e0\u6cd5\u6ee1\u8db3\u9700\u6c42\u3002\u4f8b\u5982&#xff0c;\u5f53\u6211\u4eec\u9700\u8981\u8bfb\u53d6\u5305\u542b\u7a7a\u683c\u7684\u5b57\u7b26\u4e32\u65f6&#xff0c;cin\u4f1a\u5728\u9047\u5230\u7a7a\u683c\u65f6\u505c\u6b62\u8bfb\u53d6,\u8bfb\u4e0d\u5168\u6574\u4e2a\u5b57\u7b26\u4e32\u3002\u6b64\u65f6&#xff0c;\u53ef\u4ee5\u4f7f\u7528getline()\u51fd\u6570\u6765\u89e3\u51b3\u95ee\u9898\u3002\u6ce8\u610f\u4e8b\u9879&#xff1a;<\/p>\n<li>\u4f7f\u7528getline()\u51fd\u6570\u65f6&#xff0c;\u9700\u8981\u5305\u542b\u5934\u6587\u4ef6&lt;string&gt;\u3002<\/li>\n<li>getline()\u51fd\u6570\u4f1a\u8bfb\u53d6\u6574\u884c\u5185\u5bb9&#xff0c;\u5305\u62ec\u7a7a\u683c\u5b57\u7b26&#xff0c;\u76f4\u5230\u9047\u5230\u6362\u884c\u7b26\u4e3a\u6b62\u3002<\/li>\n<p>\u5e38\u7528\u573a\u666f\u53ca\u793a\u4f8b<\/p>\n<li>\u8bfb\u53d6\u6574\u884c\u5b57\u7b26\u4e32&#xff1a;<\/li>\n<p>string s<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">getline<\/span><span class=\"token punctuation\">(<\/span>cin<span class=\"token punctuation\">,<\/span> s<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> s <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u5e94\u7528\u573a\u666f&#xff1a; \u5904\u7406\u5305\u542b\u7a7a\u683c\u7684\u6574\u884c\u8f93\u5165&#xff0c;\u6bd4\u5982\u5904\u7406\u591a\u8bcd\u7684\u53e5\u5b50\u6216\u63cf\u8ff0\u6027\u6587\u672c\u3002<\/li>\n<\/ul>\n<li>\u8bfb\u53d6\u6574\u884c\u5e76\u5206\u5272\u5904\u7406&#xff1a;<\/li>\n<p>string line<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">getline<\/span><span class=\"token punctuation\">(<\/span>cin<span class=\"token punctuation\">,<\/span> line<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nstringstream <span class=\"token function\">ss<\/span><span class=\"token punctuation\">(<\/span>line<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> num<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>ss <span class=\"token operator\">&gt;&gt;<\/span> num<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> num <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<ul>\n<li>\u5e94\u7528\u573a\u666f&#xff1a; \u5904\u7406\u590d\u6742\u8f93\u5165\u683c\u5f0f&#xff0c;\u5982\u9700\u8981\u6309\u7a7a\u683c\u5206\u5272\u7684\u6574\u884c\u6570\u636e&#xff0c;\u5e76\u5c06\u5176\u8f6c\u6362\u4e3a\u6570\u5b57\u3002 <\/li>\n<\/ul>\n<h5>\u6ce8\u610f\u4e8b\u9879<\/h5>\n<ul>\n<li>getline \u4f1a\u8bfb\u53d6\u6362\u884c\u7b26\u4e4b\u524d\u7684\u6240\u6709\u5b57\u7b26&#xff0c;\u4f46\u4e0d\u4f1a\u5305\u62ec\u6362\u884c\u7b26\u672c\u8eab\u3002<\/li>\n<li>\u5f53 getline \u4e0e cin \u6df7\u5408\u4f7f\u7528\u65f6&#xff0c;\u53ef\u80fd\u4f1a\u51fa\u73b0\u6362\u884c\u7b26\u6b8b\u7559\u95ee\u9898\u3002\u901a\u5e38\u5efa\u8bae\u5728\u4f7f\u7528 getline \u524d\u4f7f\u7528 cin.ignore() \u4ee5\u6e05\u9664\u6362\u884c\u7b26\u3002 <\/li>\n<\/ul>\n<h5>2.1.3 getchar()<\/h5>\n<p>getchar()\u51fd\u6570\u7528\u4e8e\u4ece\u7f13\u51b2\u533a\u4e2d\u8bfb\u53d6\u4e00\u4e2a\u5b57\u7b26&#xff0c;\u5e38\u7528\u4e8e\u5224\u65ad\u662f\u5426\u9047\u5230\u6362\u884c\u7b26\u7b49\u573a\u666f\u3002\u6bd4\u5982&#xff1a;while(getchar()!&#061;&#039;\\\\n&#039;)\u5e38\u7528\u573a\u666f\u53ca\u793a\u4f8b<\/p>\n<li>\u8bfb\u53d6\u5355\u4e2a\u5b57\u7b26&#xff1a;<\/li>\n<p><span class=\"token keyword\">char<\/span> ch<span class=\"token punctuation\">;<\/span><br \/>\nch <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">getchar<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> ch <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u5e94\u7528\u573a\u666f&#xff1a; \u5904\u7406\u9010\u5b57\u7b26\u8f93\u5165&#xff0c;\u6bd4\u5982\u9010\u4e2a\u5904\u7406\u67d0\u4e9b\u7b26\u53f7\u3001\u5b57\u6bcd\u6216\u63a7\u5236\u5b57\u7b26\u3002<\/li>\n<\/ul>\n<li>\u8bfb\u53d6\u76f4\u5230\u6362\u884c\u7b26&#xff1a;<\/li>\n<p><span class=\"token keyword\">char<\/span> ch<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>ch <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">getchar<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token char\">&#039;\\\\n&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> ch<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u5e94\u7528\u573a\u666f&#xff1a; \u5728\u9010\u5b57\u7b26\u5904\u7406\u8f93\u5165\u65f6&#xff0c;\u76f4\u5230\u9047\u5230\u6362\u884c\u7b26\u4e3a\u6b62\u3002\u5e38\u7528\u4e8e\u9700\u8981\u9010\u5b57\u7b26\u89e3\u6790\u8f93\u5165\u7684\u60c5\u51b5\u3002 <\/li>\n<\/ul>\n<h5>\u6ce8\u610f\u4e8b\u9879<\/h5>\n<ul>\n<li>getchar \u8bfb\u53d6\u7684\u662f\u7f13\u51b2\u533a\u4e2d\u7684\u4e0b\u4e00\u4e2a\u5b57\u7b26&#xff0c;\u8fd9\u610f\u5473\u7740\u5b83\u5305\u62ec\u7a7a\u683c\u3001Tab\u3001\u6362\u884c\u7b26\u7b49\u6240\u6709\u5b57\u7b26\u3002<\/li>\n<li>\u5982\u679c\u9700\u8981\u9010\u5b57\u7b26\u5904\u7406\u8f93\u5165&#xff0c;getchar \u662f\u4e00\u4e2a\u5f88\u597d\u7684\u9009\u62e9&#xff0c;\u5c24\u5176\u662f\u5728\u9700\u8981\u7cbe\u786e\u63a7\u5236\u8f93\u5165\u5904\u7406\u65f6\u3002<\/li>\n<\/ul>\n<h4>2.2 \u8f93\u51fa<\/h4>\n<p>\u5728C&#043;&#043;\u4e2d&#xff0c;\u6807\u51c6\u8f93\u51fa\u64cd\u4f5c\u540c\u6837\u9700\u8981\u5305\u542b\u5934\u6587\u4ef6&lt;iostream&gt;\u3002\u5e38\u7528\u7684\u8f93\u51fa\u51fd\u6570\u662fcout&#xff0c;\u5176\u57fa\u672c\u529f\u80fd\u662f\u5c06\u6570\u636e\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u3002\u9700\u8981\u7279\u522b\u6ce8\u610f\u7684\u662f&#xff0c;cout\u5728\u8f93\u51faendl\u5bf9\u8c61\u65f6&#xff0c;\u4e0d\u4ec5\u4f1a\u6362\u884c&#xff0c;\u8fd8\u4f1a\u5237\u65b0\u8f93\u51fa\u7f13\u51b2\u533a&#xff0c;\u8fd9\u4e0e\\\\n\u7565\u6709\u4e0d\u540c\u3002\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p>string s <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello, Irray~&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u89c2\u5bdf\u4ee5\u4e0b\u8f93\u51fa\u7684\u533a\u522b<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;hello, Irray~&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> s <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8f93\u51fa\u540e\u6362\u884c<\/span><\/p>\n<h2>3. \u6848\u4f8b<\/h2>\n<p>\u5728\u5237\u7b97\u6cd5\u9898\u65f6&#xff0c;\u638c\u63e1\u4e0d\u540c\u7c7b\u578b\u8f93\u5165\u7684\u5904\u7406\u65b9\u5f0f\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u6839\u636e\u8f93\u5165\u683c\u5f0f\u7684\u4e0d\u540c&#xff0c;\u6211\u4eec\u53ef\u4ee5\u91c7\u7528\u4e0d\u540c\u7684\u65b9\u6cd5\u6765\u8bfb\u53d6\u6570\u636e\u3002\u4ee5\u4e0b\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u51e0\u79cd\u5e38\u89c1\u8f93\u5165\u7c7b\u578b\u7684\u5904\u7406\u65b9\u6cd5&#xff0c;\u5e76\u9644\u4e0a\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002 <\/p>\n<h3>3.1 \u4e00\u7ef4\u6570\u7ec4\u8f93\u5165<\/h3>\n<p>\u4e00\u7ef4\u6570\u7ec4\u662f\u7b97\u6cd5\u9898\u4e2d\u6700\u57fa\u7840\u7684\u8f93\u5165\u7c7b\u578b\u4e4b\u4e00&#xff0c;\u901a\u5e38\u6bcf\u4e2a\u5143\u7d20\u662f\u4e00\u4e2a\u6574\u6570\u6216\u5b57\u7b26\u3002\u6839\u636e\u9898\u76ee\u8981\u6c42&#xff0c;\u8f93\u5165\u7684\u6570\u7ec4\u53ef\u4ee5\u662f\u56fa\u5b9a\u957f\u5ea6\u6216\u4e0d\u56fa\u5b9a\u957f\u5ea6\u3002 <\/p>\n<h4>3.1.1 \u56fa\u5b9a\u957f\u5ea6\u7684\u4e00\u7ef4\u6570\u7ec4<\/h4>\n<p>\u8f93\u5165\u683c\u5f0f&#xff1a;<\/p>\n<p><span class=\"token number\">3<\/span><br \/>\n    <span class=\"token number\">1<\/span> <span class=\"token number\">2<\/span> <span class=\"token number\">3<\/span><\/p>\n<p>\u6216<\/p>\n<p><span class=\"token number\">3<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">2<\/span> <span class=\"token number\">3<\/span><\/p>\n<p>\u89e3\u6790&#xff1a;\u5728\u7b2c\u4e00\u79cd\u683c\u5f0f\u4e2d&#xff0c;\u7b2c\u4e00\u884c\u76843\u8868\u793a\u6570\u7ec4\u7684\u957f\u5ea6&#xff0c;\u7b2c\u4e8c\u884c\u662f\u7528\u7a7a\u683c\u9694\u5f00\u7684\u6574\u6570\u3002\u5728\u7b2c\u4e8c\u79cd\u683c\u5f0f\u4e2d&#xff0c;\u7b2c\u4e00\u884c\u5305\u542b\u6570\u7ec4\u7684\u957f\u5ea63\u4ee5\u53ca\u6570\u7ec4\u5143\u7d20\u3002\u5bf9\u4e8e\u8fd9\u4e24\u79cd\u60c5\u51b5&#xff0c;\u6211\u4eec\u90fd\u53ef\u4ee5\u4f7f\u7528cin\u6765\u9010\u4e00\u8bfb\u53d6\u6570\u636e\u3002\u4ee3\u7801\u793a\u4f8b&#xff1a;<\/p>\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;vector&gt;<\/span><\/span><br \/>\n<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    <span class=\"token keyword\">int<\/span> n<span class=\"token punctuation\">;<\/span><br \/>\n    cin <span class=\"token operator\">&gt;&gt;<\/span> n<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bfb\u53d6\u6570\u7ec4\u5927\u5c0f&#xff0c;\u4f8b\u59823<\/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\">nums<\/span><span class=\"token punctuation\">(<\/span>n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u521b\u5efa\u5927\u5c0f\u4e3an\u7684vector&lt;int&gt;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u9010\u4e00\u8bfb\u53d6\u6570\u7ec4\u5143\u7d20<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/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\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        cin <span class=\"token operator\">&gt;&gt;<\/span> nums<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f93\u51fa\u8bfb\u53d6\u7684\u6570\u7ec4&#xff0c;\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u6b63\u786e<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> nums<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> nums<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <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<h4>3.1.2 \u4e0d\u56fa\u5b9a\u957f\u5ea6\u7684\u4e00\u7ef4\u6570\u7ec4<\/h4>\n<p>\u8f93\u5165\u683c\u5f0f&#xff1a;<\/p>\n<p><span class=\"token number\">1<\/span> <span class=\"token number\">2<\/span> <span class=\"token number\">3<\/span> <span class=\"token number\">4<\/span><\/p>\n<p>\u89e3\u6790&#xff1a;\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b&#xff0c;\u8f93\u5165\u7684\u6570\u636e\u662f\u591a\u4e2a\u7528\u7a7a\u683c\u5206\u9694\u7684\u6574\u6570&#xff0c;\u6ca1\u6709\u660e\u786e\u7ed9\u51fa\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528while\u5faa\u73af\u7ed3\u5408cin\u548cgetchar\u6765\u5904\u7406\u3002\u4ee3\u7801\u793a\u4f8b&#xff1a;<\/p>\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;vector&gt;<\/span><\/span><br \/>\n<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    vector<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span> nums<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> num<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f7f\u7528while\u5faa\u73af\u9010\u4e00\u8bfb\u53d6\u6574\u6570&#xff0c;\u76f4\u5230\u9047\u5230\u6362\u884c\u7b26\u7ed3\u675f<\/span><br \/>\n    <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span>cin <span class=\"token operator\">&gt;&gt;<\/span> num<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        nums<span class=\"token punctuation\">.<\/span><span class=\"token function\">push_back<\/span><span class=\"token punctuation\">(<\/span>num<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">getchar<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token char\">&#039;\\\\n&#039;<\/span><span class=\"token punctuation\">)<\/span> <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><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f93\u51fa\u8bfb\u53d6\u7684\u6570\u7ec4&#xff0c;\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u6b63\u786e<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> nums<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> nums<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <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>3.2 \u4e8c\u7ef4\u6570\u7ec4\u8f93\u5165<\/h3>\n<p>\u5728\u4e00\u4e9b\u7b97\u6cd5\u9898\u4e2d&#xff0c;\u6211\u4eec\u9700\u8981\u5904\u7406\u4e8c\u7ef4\u6570\u7ec4\u7684\u8f93\u5165\u3002\u5e38\u89c1\u7684\u8f93\u5165\u5f62\u5f0f\u5305\u62ec\u5e38\u89c4\u6a21\u5f0f\u548c\u6bcf\u884c\u6570\u636e\u7528\u9017\u53f7\u5206\u9694\u7684\u6a21\u5f0f\u3002 <\/p>\n<h4>3.2.1 \u5e38\u89c4\u6a21\u5f0f\u7684\u4e8c\u7ef4\u6570\u7ec4\u8f93\u5165<\/h4>\n<p>\u8f93\u5165\u683c\u5f0f&#xff1a;<\/p>\n<p><span class=\"token number\">2<\/span> <span class=\"token number\">3<\/span><br \/>\n<span class=\"token number\">1<\/span> <span class=\"token number\">2<\/span> <span class=\"token number\">3<\/span><br \/>\n<span class=\"token number\">1<\/span> <span class=\"token number\">2<\/span> <span class=\"token number\">3<\/span><\/p>\n<p>\u89e3\u6790&#xff1a;\u7b2c\u4e00\u884c\u76842\u8868\u793a\u4e8c\u7ef4\u6570\u7ec4\u7684\u884c\u6570&#xff0c;3\u8868\u793a\u5217\u6570\u3002\u63a5\u4e0b\u6765\u4e24\u884c\u6570\u636e\u662f\u4e8c\u7ef4\u6570\u7ec4\u7684\u5185\u5bb9\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5d4c\u5957\u7684for\u5faa\u73af\u548ccin\u6765\u9010\u884c\u8bfb\u53d6\u6570\u636e\u3002\u4ee3\u7801\u793a\u4f8b&#xff1a;<\/p>\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;vector&gt;<\/span><\/span><br \/>\n<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    <span class=\"token keyword\">int<\/span> m<span class=\"token punctuation\">,<\/span> n<span class=\"token punctuation\">;<\/span><br \/>\n    cin <span class=\"token operator\">&gt;&gt;<\/span> m <span class=\"token operator\">&gt;&gt;<\/span> n<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bfb\u53d6\u884c\u6570\u548c\u5217\u6570<\/span><\/p>\n<p>    vector<span class=\"token operator\">&lt;<\/span>vector<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;&gt;<\/span> <span class=\"token function\">matrix<\/span><span class=\"token punctuation\">(<\/span>m<span class=\"token punctuation\">,<\/span> <span class=\"token generic-function\"><span class=\"token function\">vector<\/span><span class=\"token generic class-name\"><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span>n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u8fd9\u91cc \u4e8c\u7ef4\u6570\u7ec4\u7684\u8868\u8fbe\u65b9\u5f0f\u4e00\u5b9a\u8981\u638c\u63e1<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u9010\u884c\u9010\u5217\u8bfb\u53d6\u4e8c\u7ef4\u6570\u7ec4\u5143\u7d20<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> m<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> j <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> j <span class=\"token operator\">&lt;<\/span> n<span class=\"token punctuation\">;<\/span> j<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            cin <span class=\"token operator\">&gt;&gt;<\/span> matrix<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span>j<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<p>    <span class=\"token comment\">\/\/ \u8f93\u51fa\u8bfb\u53d6\u7684\u4e8c\u7ef4\u6570\u7ec4&#xff0c;\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u6b63\u786e<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> m<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> j <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> j <span class=\"token operator\">&lt;<\/span> n<span class=\"token punctuation\">;<\/span> j<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            cout <span class=\"token operator\">&lt;&lt;<\/span> matrix<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span>j<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <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<h4>3.2.2 \u6bcf\u884c\u6570\u636e\u7528\u9017\u53f7\u5206\u9694\u7684\u4e8c\u7ef4\u6570\u7ec4\u8f93\u5165<\/h4>\n<p>\u8f93\u5165\u683c\u5f0f&#xff1a;<\/p>\n<p><span class=\"token number\">2<\/span> <span class=\"token number\">3<\/span><br \/>\n<span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><br \/>\n<span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><\/p>\n<p>\u89e3\u6790&#xff1a;\u540c\u6837\u7684&#xff0c;\u7b2c\u4e00\u884c\u76842\u548c3\u5206\u522b\u4ee3\u8868\u884c\u6570\u548c\u5217\u6570\u3002\u4e0d\u540c\u7684\u662f&#xff0c;\u63a5\u4e0b\u6765\u7684\u6bcf\u884c\u6570\u636e\u662f\u7528\u9017\u53f7\u5206\u9694\u7684\u5b57\u7b26\u4e32\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528getline\u8bfb\u53d6\u6bcf\u884c\u5b57\u7b26\u4e32&#xff0c;\u7136\u540e\u901a\u8fc7\u5904\u7406\u5b57\u7b26\u4e32\u6765\u5206\u9694\u51fa\u6bcf\u4e2a\u6574\u6570\u3002\u8f93\u5165\u7684\u65f6\u5019\u6709\u9017\u53f7\u4f5c\u4e3a\u5206\u9694&#xff0c;\u4f46\u662f\u6211\u4eec\u5e0c\u671b\u5b58\u5230\u4e8c\u7ef4\u6570\u7ec4\u91cc\u9762\u7684\u53ea\u6709\u6570\u5b57\u3002\u4ee3\u7801\u793a\u4f8b&#xff1a;<\/p>\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;vector&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 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    <span class=\"token keyword\">int<\/span> m<span class=\"token punctuation\">,<\/span> n<span class=\"token punctuation\">;<\/span><br \/>\n    cin <span class=\"token operator\">&gt;&gt;<\/span> m <span class=\"token operator\">&gt;&gt;<\/span> n<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/cin.ignore(); \/\/ \u5ffd\u7565\u6362\u884c\u7b26&#xff0c;\u4ee5\u4fbf\u540e\u7eedgetline\u8bfb\u53d6<\/span><br \/>\n<span class=\"token comment\">\/\/\u5f53\u4f60\u4f7f\u7528 cin \u8bfb\u53d6 m \u548c n \u540e&#xff0c;\u8f93\u5165\u6d41\u4e2d\u8fd8\u4f1a\u6b8b\u7559\u4e00\u4e2a\u6362\u884c\u7b26&#xff08;\\\\n&#xff09;\u3002\u5982\u679c\u4f60\u76f4\u63a5\u8c03\u7528 getline()&#xff0c;<\/span><br \/>\n<span class=\"token comment\">\/\/\u5b83\u4f1a\u7acb\u5373\u8bfb\u53d6\u5230\u8fd9\u4e2a\u6362\u884c\u7b26&#xff0c;\u5e76\u5c06\u5176\u89c6\u4e3a\u4e00\u4e2a\u7a7a\u884c\u3002\u8fd9\u5c31\u4f1a\u5bfc\u81f4 getline() \u8bfb\u53d6\u5230\u7684\u5185\u5bb9\u4e3a\u7a7a\u5b57\u7b26\u4e32&#xff0c;<\/span><br \/>\n<span class=\"token comment\">\/\/\u800c\u4e0d\u662f\u4f60\u671f\u671b\u7684\u90a3\u4e00\u6574\u884c\u8f93\u5165\u6570\u636e\u3002<\/span><\/p>\n<p><span class=\"token comment\">\/\/cin.ignore() \u7684\u4f5c\u7528\u5c31\u662f\u5ffd\u7565\u6389\u8fd9\u4e2a\u6362\u884c\u7b26&#xff08;\u6216\u5176\u4ed6\u6307\u5b9a\u7684\u5b57\u7b26&#xff09;&#xff0c;\u4ece\u800c\u8ba9\u540e\u7eed\u7684 getline() \u80fd\u6b63\u786e\u8bfb\u53d6\u4f60\u9700\u8981\u7684\u90a3\u4e00\u884c\u6570\u636e\u3002<\/span><\/p>\n<p>    <span class=\"token function\">getchar<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/getchar() \u4f1a\u4ece\u8f93\u5165\u6d41\u4e2d\u8bfb\u53d6\u4e0b\u4e00\u4e2a\u5b57\u7b26\u5e76\u5c06\u5176\u4e22\u5f03&#xff0c;\u56e0\u6b64\u53ef\u4ee5\u7528\u6765\u5ffd\u7565\u6389 cin \u8bfb\u53d6 m \u548c n \u540e\u6b8b\u7559\u7684\u6362\u884c\u7b26\u3002<\/span><\/p>\n<p>    vector<span class=\"token operator\">&lt;<\/span>vector<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;&gt;<\/span> <span class=\"token function\">matrix<\/span><span class=\"token punctuation\">(<\/span>m<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u4ec5\u521d\u59cb\u5316\u4e86 m \u884c&#xff0c;\u4f46\u6bcf\u4e00\u884c\u90fd\u662f\u4e00\u4e2a\u7a7a\u7684 vector&#xff0c;\u9700\u8981\u540e\u7eed\u624b\u52a8\u6dfb\u52a0\u5143\u7d20\u3002<\/span><br \/>\n<span class=\"token comment\">\/\/vector&lt;vector&lt;int&gt;&gt; matrix(m, vector&lt;int&gt;(n));\u4e5f\u53ef\u4ee5&#xff0c;\u56e0\u4e3a\u5df2\u7ecf\u7ed9\u51fam&#xff0c;n.<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u9010\u884c\u8bfb\u53d6\u5e76\u5904\u7406\u5b57\u7b26\u4e32<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> m<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        string s<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">getline<\/span><span class=\"token punctuation\">(<\/span>cin<span class=\"token punctuation\">,<\/span> s<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u8bfb\u53d6\u4e00\u884c\u653e\u5165\u5230\u5b57\u7b26\u4e32s\u4e2d<\/span><\/p>\n<p>        vector<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span> vec<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5efa\u7acb\u5b58\u653e\u6574\u6570\u7684\u4e00\u7ef4\u6570\u7ec4<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> p <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u7d22\u5f15p&#xff0c;\u7528\u4e8e\u8868\u793a\u5f53\u524d\u6570\u5b57\u7684\u7ed3\u675f\u4f4d\u7f6e<\/span><br \/>\n        <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> q <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> q <span class=\"token operator\">&lt;<\/span> s<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> q<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            p <span class=\"token operator\">&#061;<\/span> q<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span>p <span class=\"token operator\">&lt;<\/span> s<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;&amp;<\/span> s<span class=\"token punctuation\">[<\/span>p<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token char\">&#039;,&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                p<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/ 2 , 3 , 4<\/span><br \/>\n<span class=\"token comment\">\/\/ 0 1 2 3 4<\/span><br \/>\n            string temp <span class=\"token operator\">&#061;<\/span> s<span class=\"token punctuation\">.<\/span><span class=\"token function\">substr<\/span><span class=\"token punctuation\">(<\/span>q<span class=\"token punctuation\">,<\/span> p <span class=\"token operator\">&#8211;<\/span> q<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/\u63d0\u53d6\u4ece\u4f4d\u7f6eq\u5230p\u7684\u5b50\u5b57\u7b26\u4e32&#xff0c;\u8fd9\u90e8\u5206\u5b57\u7b26\u4e32\u662f\u4e00\u4e2a\u6570\u5b57\u3002<\/span><br \/>\n            vec<span class=\"token punctuation\">.<\/span><span class=\"token function\">push_back<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">stoi<\/span><span class=\"token punctuation\">(<\/span>temp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5c06\u5b57\u7b26\u4e32\u8f6c\u4e3a\u6574\u6570\u5e76\u5b58\u5165vector<\/span><br \/>\n            q <span class=\"token operator\">&#061;<\/span> p<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u66f4\u65b0\u7d22\u5f15\u4f4d\u7f6e<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        matrix<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> vec<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5c06\u5904\u7406\u540e\u7684vector\u5b58\u5165matrix<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f93\u51fa\u8bfb\u53d6\u7684\u4e8c\u7ef4\u6570\u7ec4&#xff0c;\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u6b63\u786e<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> m<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> j <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> j <span class=\"token operator\">&lt;<\/span> matrix<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> j<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            cout <span class=\"token operator\">&lt;&lt;<\/span> matrix<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span>j<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <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>3.3 \u5b57\u7b26\u4e32\u8f93\u5165<\/h3>\n<p>\u5b57\u7b26\u4e32\u5728\u7b97\u6cd5\u9898\u4e2d\u4e5f\u975e\u5e38\u5e38\u89c1&#xff0c;\u4ee5\u4e0b\u4ecb\u7ecd\u51e0\u79cd\u5e38\u89c1\u7684\u5b57\u7b26\u4e32\u8f93\u5165\u60c5\u51b5\u53ca\u5176\u5904\u7406\u65b9\u5f0f\u3002 <\/p>\n<h4>3.3.1 \u5355\u5b57\u7b26\u4e32\u8f93\u5165<\/h4>\n<p>\u8f93\u5165\u683c\u5f0f&#xff1a;<\/p>\n<p>abc<\/p>\n<p>\u89e3\u6790&#xff1a;\u5bf9\u4e8e\u5355\u4e2a\u5b57\u7b26\u4e32\u7684\u8f93\u5165&#xff0c;\u6211\u4eec\u76f4\u63a5\u4f7f\u7528cin\u5373\u53ef\u8bfb\u53d6\u3002\u4ee3\u7801\u793a\u4f8b&#xff1a;<\/p>\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 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 s<span class=\"token punctuation\">;<\/span><br \/>\n    cin <span class=\"token operator\">&gt;&gt;<\/span> s<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bfb\u53d6\u5355\u4e2a\u5b57\u7b26\u4e32<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f93\u51fa\u8bfb\u53d6\u7684\u5b57\u7b26\u4e32&#xff0c;\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u6b63\u786e<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> s <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <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<h4>3.3.2 \u591a\u5b57\u7b26\u4e32\u8f93\u5165&#xff08;\u56fa\u5b9a\u4e2a\u6570&#xff09;<\/h4>\n<p>\u8f93\u5165\u683c\u5f0f&#xff1a;<\/p>\n<p><span class=\"token number\">3<\/span> abc ab a<\/p>\n<p>\u89e3\u6790&#xff1a;\u7b2c\u4e00\u884c\u76843\u8868\u793a\u63a5\u4e0b\u6765\u6709\u4e09\u4e2a\u5b57\u7b26\u4e32&#xff0c;\u6bcf\u4e2a\u5b57\u7b26\u4e32\u7528\u7a7a\u683c\u9694\u5f00\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528for\u5faa\u73af\u7ed3\u5408cin\u6765\u9010\u4e00\u8bfb\u53d6\u5b57\u7b26\u4e32\u3002\u4ee3\u7801\u793a\u4f8b&#xff1a;<\/p>\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;vector&gt;<\/span><\/span><br \/>\n<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    <span class=\"token keyword\">int<\/span> n<span class=\"token punctuation\">;<\/span><br \/>\n    cin <span class=\"token operator\">&gt;&gt;<\/span> n<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8bfb\u53d6\u5b57\u7b26\u4e32\u6570\u91cf<\/span><br \/>\n    vector<span class=\"token operator\">&lt;<\/span>string<span class=\"token operator\">&gt;<\/span> <span class=\"token function\">strings<\/span><span class=\"token punctuation\">(<\/span>n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u9010\u4e00\u8bfb\u53d6\u5b57\u7b26\u4e32<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/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\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        cin <span class=\"token operator\">&gt;&gt;<\/span> strings<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f93\u51fa\u8bfb\u53d6\u7684\u5b57\u7b26\u4e32&#xff0c;\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u6b63\u786e<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> strings<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> strings<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <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<h4>3.3.3 \u591a\u5b57\u7b26\u4e32\u8f93\u5165&#xff08;\u4e0d\u56fa\u5b9a\u4e2a\u6570&#xff09;<\/h4>\n<p>\u8f93\u5165\u683c\u5f0f&#xff1a;<\/p>\n<p>abc ab a d<\/p>\n<p>\u89e3\u6790&#xff1a;\u5f53\u8f93\u5165\u4e3a\u591a\u4e2a\u7528\u7a7a\u683c\u9694\u5f00\u7684\u5b57\u7b26\u4e32\u4e14\u6ca1\u6709\u7ed9\u51fa\u6570\u91cf\u65f6&#xff0c;\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528while\u5faa\u73af\u7ed3\u5408cin\u548cgetchar\u6765\u9010\u4e00\u8bfb\u53d6&#xff0c;\u76f4\u5230\u9047\u5230\u6362\u884c\u7b26\u7ed3\u675f\u8f93\u5165\u3002\u4ee3\u7801\u793a\u4f8b&#xff1a;<\/p>\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;vector&gt;<\/span><\/span><br \/>\n<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    vector<span class=\"token operator\">&lt;<\/span>string<span class=\"token operator\">&gt;<\/span> strings<span class=\"token punctuation\">;<\/span><br \/>\n    string str<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f7f\u7528while\u5faa\u73af\u9010\u4e00\u8bfb\u53d6\u5b57\u7b26\u4e32&#xff0c;\u76f4\u5230\u9047\u5230\u6362\u884c\u7b26\u7ed3\u675f<\/span><br \/>\n    <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span>cin <span class=\"token operator\">&gt;&gt;<\/span> str<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/cin\u6210\u529f\u8bfb\u53d6\u8fd4\u56detrue&#xff0c;\u5426\u5219false;<\/span><br \/>\n        strings<span class=\"token punctuation\">.<\/span><span class=\"token function\">push_back<\/span><span class=\"token punctuation\">(<\/span>str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">getchar<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token char\">&#039;\\\\n&#039;<\/span><span class=\"token punctuation\">)<\/span> <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><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f93\u51fa\u8bfb\u53d6\u7684\u5b57\u7b26\u4e32&#xff0c;\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u6b63\u786e<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> strings<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> strings<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <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<h4>3.3.4 \u5b57\u7b26\u4e32\u8f6c\u6574\u6570\u6570\u7ec4<\/h4>\n<p>\u8f93\u5165\u683c\u5f0f&#xff1a;<\/p>\n<p><span class=\"token number\">11<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">22<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">4<\/span><\/p>\n<p>\u89e3\u6790&#xff1a;\u8f93\u5165\u4e3a\u4e00\u4e2a\u5b8c\u6574\u5b57\u7b26\u4e32&#xff0c;\u5b57\u7b26\u4e32\u5185\u5bb9\u4e3a\u7528\u9017\u53f7\u9694\u5f00\u7684\u6574\u6570\u3002\u6211\u4eec\u53ef\u4ee5\u5148\u8bfb\u53d6\u6574\u4e2a\u5b57\u7b26\u4e32&#xff0c;\u7136\u540e\u6839\u636e\u9017\u53f7\u5206\u9694\u51fa\u6bcf\u4e2a\u6574\u6570&#xff0c;\u5e76\u5c06\u5176\u5b58\u5165vector&lt;int&gt;\u4e2d\u3002\u4ee3\u7801\u793a\u4f8b&#xff1a;<\/p>\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;vector&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 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    vector<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span> vec<span class=\"token punctuation\">;<\/span><br \/>\n    string s<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8bfb\u53d6\u6574\u884c\u5b57\u7b26\u4e32<\/span><br \/>\n    <span class=\"token function\">getline<\/span><span class=\"token punctuation\">(<\/span>cin<span class=\"token punctuation\">,<\/span> s<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6309\u7167\u9017\u53f7\u5206\u9694\u5b57\u7b26\u4e32\u5e76\u8f6c\u6362\u4e3a\u6574\u6570<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> p <span class=\"token operator\">&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> q <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> q <span class=\"token operator\">&lt;<\/span> s<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> q<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        p <span class=\"token operator\">&#061;<\/span> q<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span>p <span class=\"token operator\">&lt;<\/span> s<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;&amp;<\/span> s<span class=\"token punctuation\">[<\/span>p<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token char\">&#039;,&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            p<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        string temp <span class=\"token operator\">&#061;<\/span> s<span class=\"token punctuation\">.<\/span><span class=\"token function\">substr<\/span><span class=\"token punctuation\">(<\/span>q<span class=\"token punctuation\">,<\/span> p <span class=\"token operator\">&#8211;<\/span> q<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u63d0\u53d6\u5b50\u5b57\u7b26\u4e32<\/span><br \/>\n        vec<span class=\"token punctuation\">.<\/span><span class=\"token function\">push_back<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">stoi<\/span><span class=\"token punctuation\">(<\/span>temp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5c06\u5b50\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6574\u6570\u5e76\u5b58\u5165vector<\/span><br \/>\n        q <span class=\"token operator\">&#061;<\/span> p<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u66f4\u65b0\u7d22\u5f15\u4f4d\u7f6e&#xff0c;\u8df3\u8fc7\u9017\u53f7<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f93\u51fa\u8bfb\u53d6\u7684\u6574\u6570\u6570\u7ec4&#xff0c;\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u6b63\u786e<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> vec<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> vec<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <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<h2>4. ACM\u6a21\u5f0f\u7ec3\u4e60\u5e73\u53f0<\/h2>\n<\/p>\n<h3>4.1 \u7ec3\u4e60\u5e73\u53f0\u63a8\u8350<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u63a8\u8350\u7684\u7ec3\u4e60\u5e73\u53f0&#xff1a;<\/p>\n<ul>\n<li>LeetCode&#xff1a;\u63d0\u4f9b\u591a\u79cd\u7c7b\u578b\u7684\u7f16\u7a0b\u95ee\u9898&#xff0c;\u9002\u5408\u7ec3\u4e60\u5404\u79cd\u7b97\u6cd5\u548c\u6570\u636e\u7ed3\u6784\u3002<\/li>\n<li>Codeforces&#xff1a;\u6709\u4e30\u5bcc\u7684\u7f16\u7a0b\u6bd4\u8d5b\u9898\u76ee\u548c\u8ba8\u8bba\u533a&#xff0c;\u53ef\u4ee5\u63d0\u5347\u7b97\u6cd5\u80fd\u529b\u548c\u89e3\u9898\u901f\u5ea6\u3002<\/li>\n<li>AtCoder&#xff1a;\u63d0\u4f9b\u7f16\u7a0b\u7ade\u8d5b\u9898\u76ee&#xff0c;\u9002\u5408\u8bad\u7ec3\u81ea\u5df1\u7684\u7b97\u6cd5\u80fd\u529b\u3002<\/li>\n<li>\u725b\u5ba2\u7f51&#xff1a;\u6709\u8bb8\u591a\u7b14\u8bd5\u9898\u548c\u9762\u8bd5\u9898&#xff0c;\u9002\u5408\u8fdb\u884cACM\u6a21\u5f0f\u8bad\u7ec3\u3002\u91cd\u70b9\u63a8\u8350\u6b64\u9898\u5355&#xff1a;\u9898\u76ee\u6765\u81ea&#xff1a;\u725b\u5ba2\u7ade\u8d5b\u94fe\u63a5<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250620220536-6855db3072ca4.png\" alt=\"image.png\" \/> <\/p>\n<h3>4.2 \u5b9e\u6218\u5e73\u53f0\u6848\u4f8b<\/h3>\n<p>\u9898\u76ee&#xff1a;\u7ed9\u5b9a\u4e00\u4e2a\u6574\u6570\u6570\u7ec4&#xff0c;\u6c42\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u7684\u5e73\u65b9&#xff0c;\u5e76\u6309\u5347\u5e8f\u8f93\u51fa\u3002\u8f93\u5165&#xff1a;<\/p>\n<p><span class=\"token number\">5<\/span><br \/>\n<span class=\"token number\">1<\/span> <span class=\"token number\">2<\/span> <span class=\"token number\">3<\/span> <span class=\"token number\">4<\/span> <span class=\"token number\">5<\/span><\/p>\n<p>\u8f93\u51fa&#xff1a;<\/p>\n<p><span class=\"token number\">1<\/span> <span class=\"token number\">4<\/span> <span class=\"token number\">9<\/span> <span class=\"token number\">16<\/span> <span class=\"token number\">25<\/span><\/p>\n<p>\u89e3\u51b3\u65b9\u6848&#xff1a;<\/p>\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;vector&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;algorithm&gt;<\/span><\/span><br \/>\n<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    <span class=\"token keyword\">int<\/span> n<span class=\"token punctuation\">;<\/span><br \/>\n    cin <span class=\"token operator\">&gt;&gt;<\/span> n<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8bfb\u5165\u6570\u7ec4\u5927\u5c0f<\/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\">nums<\/span><span class=\"token punctuation\">(<\/span>n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/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\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        cin <span class=\"token operator\">&gt;&gt;<\/span> nums<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8bfb\u5165\u6570\u7ec4\u5143\u7d20<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/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\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        nums<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> nums<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">*<\/span> nums<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8ba1\u7b97\u5e73\u65b9<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token function\">sort<\/span><span class=\"token punctuation\">(<\/span>nums<span class=\"token punctuation\">.<\/span><span class=\"token function\">begin<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> nums<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u6392\u5e8f<\/span><br \/>\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/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\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> nums<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8f93\u51fa\u7ed3\u679c<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> endl<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<h2>5. \u5e38\u89c1\u6570\u636e\u7ed3\u6784\u5b9a\u4e49<\/h2>\n<p>\u5728ACM\u6a21\u5f0f\u4e2d&#xff0c;\u94fe\u8868\u3001\u4e8c\u53c9\u6811\u8fd9\u4e9b\u6570\u636e\u7ed3\u6784\u7684\u5b9a\u4e49\u4e5f\u9700\u8981\u81ea\u5df1\u53bb\u5b9a\u4e49&#xff0c;\u63a5\u4e0b\u6765\u5c31\u7ed9\u51fa\u4e8c\u8005\u7684\u5b9a\u4e49\u3001\u8f93\u5165\u548c\u8f93\u51fa\u3002\u8fd9\u91cc\u5c31\u76f4\u63a5\u7ed9\u51fa\u4ee3\u7801\u4e86&#xff0c;\u60f3\u5fc5\u5927\u4f19\u5bf9\u6570\u636e\u7ed3\u6784\u90fd\u662f\u4e86\u5982\u6307\u638c\u7684\u3002 <\/p>\n<h3>5.1 \u94fe\u8868<\/h3>\n<p>\u94fe\u8868\u662f\u4e00\u79cd\u57fa\u672c\u7684\u6570\u636e\u7ed3\u6784&#xff0c;\u5e38\u7528\u4e8e\u5b58\u50a8\u548c\u64cd\u4f5c\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u94fe\u8868\u7684\u8f93\u5165\u548c\u8f93\u51fa\u793a\u4f8b&#xff1a;<\/p>\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 keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49\u94fe\u8868\u8282\u70b9\u7684\u7ed3\u6784<\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">ListNode<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> val<span class=\"token punctuation\">;<\/span>          <span class=\"token comment\">\/\/ \u8282\u70b9\u7684\u503c<\/span><br \/>\n    ListNode<span class=\"token operator\">*<\/span> next<span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u6307\u5411\u4e0b\u4e00\u4e2a\u8282\u70b9\u7684\u6307\u9488<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6784\u9020\u51fd\u6570&#xff0c;\u521d\u59cb\u5316\u8282\u70b9\u7684\u503c\u548c\u6307\u9488<\/span><br \/>\n    <span class=\"token function\">ListNode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> x<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token operator\">:<\/span> <span class=\"token function\">val<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">,<\/span><span class=\"token function\">next<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><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    ListNode<span class=\"token operator\">*<\/span> head <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u94fe\u8868\u7684\u5934\u6307\u9488&#xff0c;\u521d\u59cb\u5316\u4e3a\u7a7a<\/span><br \/>\n    ListNode<span class=\"token operator\">*<\/span> tail <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u94fe\u8868\u7684\u5c3e\u6307\u9488&#xff0c;\u521d\u59cb\u5316\u4e3a\u7a7a<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> n<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4ece\u8f93\u5165\u4e2d\u8bfb\u53d6\u6570\u636e&#xff0c;\u76f4\u5230\u9047\u5230\u6362\u884c\u7b26<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>cin <span class=\"token operator\">&gt;&gt;<\/span> n<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        ListNode<span class=\"token operator\">*<\/span> newNode <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token function\">ListNode<\/span><span class=\"token punctuation\">(<\/span>n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u521b\u5efa\u65b0\u7684\u94fe\u8868\u8282\u70b9<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>head<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5982\u679c\u94fe\u8868\u4e3a\u7a7a&#xff0c;\u5219\u65b0\u7684\u8282\u70b9\u662f\u5934\u8282\u70b9<\/span><br \/>\n            head <span class=\"token operator\">&#061;<\/span> newNode<span class=\"token punctuation\">;<\/span><br \/>\n            tail <span class=\"token operator\">&#061;<\/span> head<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5426\u5219&#xff0c;\u5c06\u65b0\u8282\u70b9\u6dfb\u52a0\u5230\u94fe\u8868\u672b\u5c3e<\/span><br \/>\n            tail<span class=\"token operator\">-&gt;<\/span>next <span class=\"token operator\">&#061;<\/span> newNode<span class=\"token punctuation\">;<\/span><br \/>\n            tail <span class=\"token operator\">&#061;<\/span> newNode<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">getchar<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token char\">&#039;\\\\n&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5982\u679c\u8f93\u5165\u6d41\u4e2d\u9047\u5230\u6362\u884c\u7b26&#xff0c;\u5219\u505c\u6b62\u8bfb\u53d6<\/span><br \/>\n            <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8f93\u51fa\u94fe\u8868\u4e2d\u7684\u6240\u6709\u8282\u70b9\u503c<\/span><br \/>\n    ListNode<span class=\"token operator\">*<\/span> current <span class=\"token operator\">&#061;<\/span> head<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u4ece\u5934\u8282\u70b9\u5f00\u59cb\u904d\u5386<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>current<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> current<span class=\"token operator\">-&gt;<\/span>val <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8f93\u51fa\u5f53\u524d\u8282\u70b9\u7684\u503c<\/span><br \/>\n        current <span class=\"token operator\">&#061;<\/span> current<span class=\"token operator\">-&gt;<\/span>next<span class=\"token punctuation\">;<\/span>      <span class=\"token comment\">\/\/ \u79fb\u52a8\u5230\u4e0b\u4e00\u4e2a\u8282\u70b9<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6e05\u7406\u94fe\u8868&#xff0c;\u91ca\u653e\u5185\u5b58<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>head<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        ListNode<span class=\"token operator\">*<\/span> temp <span class=\"token operator\">&#061;<\/span> head<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u4fdd\u5b58\u5f53\u524d\u8282\u70b9\u7684\u6307\u9488<\/span><br \/>\n        head <span class=\"token operator\">&#061;<\/span> head<span class=\"token operator\">-&gt;<\/span>next<span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/ \u79fb\u52a8\u5230\u4e0b\u4e00\u4e2a\u8282\u70b9<\/span><br \/>\n        <span class=\"token keyword\">delete<\/span> temp<span class=\"token punctuation\">;<\/span>           <span class=\"token comment\">\/\/ \u5220\u9664\u5f53\u524d\u8282\u70b9&#xff0c;\u91ca\u653e\u5185\u5b58<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <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>5.2 \u4e8c\u53c9\u6811<\/h3>\n<p>\u4e8c\u53c9\u6811\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6570\u636e\u7ed3\u6784&#xff0c;\u7528\u4e8e\u7ec4\u7ec7\u548c\u5b58\u50a8\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4e8c\u53c9\u6811\u7684\u8f93\u5165\u548c\u5c42\u5e8f\u904d\u5386\u8f93\u51fa\u793a\u4f8b&#xff1a;<\/p>\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;queue&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49\u4e8c\u53c9\u6811\u8282\u70b9\u7684\u7ed3\u6784<\/span><br \/>\n<span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">TreeNode<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> val<span class=\"token punctuation\">;<\/span>          <span class=\"token comment\">\/\/ \u8282\u70b9\u7684\u503c<\/span><br \/>\n    TreeNode<span class=\"token operator\">*<\/span> left<span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u6307\u5411\u5de6\u5b50\u8282\u70b9\u7684\u6307\u9488<\/span><br \/>\n    TreeNode<span class=\"token operator\">*<\/span> right<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u6307\u5411\u53f3\u5b50\u8282\u70b9\u7684\u6307\u9488<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6784\u9020\u51fd\u6570&#xff0c;\u521d\u59cb\u5316\u8282\u70b9\u7684\u503c\u548c\u5b50\u8282\u70b9\u6307\u9488<\/span><br \/>\n    <span class=\"token function\">TreeNode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> x<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">val<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">left<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">right<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><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    <span class=\"token keyword\">int<\/span> n<span class=\"token punctuation\">;<\/span><br \/>\n    cin <span class=\"token operator\">&gt;&gt;<\/span> n<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8bfb\u53d6\u6811\u7684\u8282\u70b9\u4e2a\u6570<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>n <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        cout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5982\u679c\u8282\u70b9\u4e2a\u6570\u4e3a0&#xff0c;\u76f4\u63a5\u8f93\u51fa\u6362\u884c\u5e76\u8fd4\u56de<\/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<p>    vector<span class=\"token operator\">&lt;<\/span>TreeNode<span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token function\">nodes<\/span><span class=\"token punctuation\">(<\/span>n<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u521b\u5efa\u4e00\u4e2a\u4fdd\u5b58\u6240\u6709\u8282\u70b9\u7684\u5411\u91cf<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/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\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> value<span class=\"token punctuation\">;<\/span><br \/>\n        cin <span class=\"token operator\">&gt;&gt;<\/span> value<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8bfb\u53d6\u8282\u70b9\u7684\u503c<\/span><br \/>\n        nodes<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token function\">TreeNode<\/span><span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u521b\u5efa\u65b0\u7684\u8282\u70b9\u5e76\u5b58\u50a8\u5230\u5411\u91cf\u4e2d<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8fde\u63a5\u6811\u7684\u8282\u70b9&#xff0c;\u6784\u5efa\u4e8c\u53c9\u6811<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/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\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span> <span class=\"token operator\">*<\/span> i <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span> <span class=\"token operator\">&lt;<\/span> n<span class=\"token punctuation\">)<\/span> nodes<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token operator\">-&gt;<\/span>left <span class=\"token operator\">&#061;<\/span> nodes<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span> <span class=\"token operator\">*<\/span> i <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u5de6\u5b50\u8282\u70b9<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span> <span class=\"token operator\">*<\/span> i <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">2<\/span> <span class=\"token operator\">&lt;<\/span> n<span class=\"token punctuation\">)<\/span> nodes<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token operator\">-&gt;<\/span>right <span class=\"token operator\">&#061;<\/span> nodes<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span> <span class=\"token operator\">*<\/span> i <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u53f3\u5b50\u8282\u70b9<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5c42\u5e8f\u904d\u5386\u8f93\u51fa<\/span><br \/>\n    queue<span class=\"token operator\">&lt;<\/span>TreeNode<span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span> q<span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u521b\u5efa\u4e00\u4e2a\u961f\u5217&#xff0c;\u7528\u4e8e\u5c42\u5e8f\u904d\u5386<\/span><br \/>\n    q<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>nodes<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 comment\">\/\/ \u4ece\u6839\u8282\u70b9\u5f00\u59cb<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>q<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\">{<\/span><br \/>\n        TreeNode<span class=\"token operator\">*<\/span> node <span class=\"token operator\">&#061;<\/span> q<span class=\"token punctuation\">.<\/span><span class=\"token function\">front<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u83b7\u53d6\u961f\u5217\u4e2d\u7684\u7b2c\u4e00\u4e2a\u8282\u70b9<\/span><br \/>\n        q<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>  <span class=\"token comment\">\/\/ \u79fb\u9664\u961f\u5217\u4e2d\u7684\u7b2c\u4e00\u4e2a\u8282\u70b9<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> node<span class=\"token operator\">-&gt;<\/span>val <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8f93\u51fa\u5f53\u524d\u8282\u70b9\u7684\u503c<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>node<span class=\"token operator\">-&gt;<\/span>left<span class=\"token punctuation\">)<\/span> q<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>node<span class=\"token operator\">-&gt;<\/span>left<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u5c06\u5de6\u5b50\u8282\u70b9\u52a0\u5165\u961f\u5217<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>node<span class=\"token operator\">-&gt;<\/span>right<span class=\"token punctuation\">)<\/span> q<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>node<span class=\"token operator\">-&gt;<\/span>right<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5c06\u53f3\u5b50\u8282\u70b9\u52a0\u5165\u961f\u5217<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6e05\u7406\u6811&#xff0c;\u91ca\u653e\u5185\u5b58<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">auto<\/span> node <span class=\"token operator\">:<\/span> nodes<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">delete<\/span> node<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ 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