{"id":24,"date":"2025-09-01T08:36:00","date_gmt":"2025-09-01T00:36:00","guid":{"rendered":"http:\/\/wysset.com\/?p=24"},"modified":"2025-09-01T08:40:37","modified_gmt":"2025-09-01T00:40:37","slug":"2-%e5%ad%97%e6%af%8d%e5%bc%82%e4%bd%8d%e8%af%8d%e5%88%86%e7%bb%84","status":"publish","type":"post","link":"https:\/\/wysset.com\/index.php\/2025\/09\/01\/2-%e5%ad%97%e6%af%8d%e5%bc%82%e4%bd%8d%e8%af%8d%e5%88%86%e7%bb%84\/","title":{"rendered":"2.\u5b57\u6bcd\u5f02\u4f4d\u8bcd\u5206\u7ec4"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u9898\u76ee\u5f88\u7b80\u5355\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed9\u4f60\u4e00\u4e2a\u5b57\u7b26\u4e32\u6570\u7ec4\uff0c\u8bf7\u4f60\u5c06\u00a0\u5b57\u6bcd\u5f02\u4f4d\u8bcd\u00a0\u7ec4\u5408\u5728\u4e00\u8d77\u3002\u53ef\u4ee5\u6309\u4efb\u610f\u987a\u5e8f\u8fd4\u56de\u7ed3\u679c\u5217\u8868\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b 1:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u5165:<\/strong>&nbsp;strs = [&#8220;eat&#8221;, &#8220;tea&#8221;, &#8220;tan&#8221;, &#8220;ate&#8221;, &#8220;nat&#8221;, &#8220;bat&#8221;]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa:&nbsp;<\/strong>[[&#8220;bat&#8221;],[&#8220;nat&#8221;,&#8221;tan&#8221;],[&#8220;ate&#8221;,&#8221;eat&#8221;,&#8221;tea&#8221;]]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u89e3\u91ca\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728 strs \u4e2d\u6ca1\u6709\u5b57\u7b26\u4e32\u53ef\u4ee5\u901a\u8fc7\u91cd\u65b0\u6392\u5217\u6765\u5f62\u6210\u00a0<code>\"bat\"<\/code>\u3002<\/li>\n\n\n\n<li>\u5b57\u7b26\u4e32\u00a0<code>\"nat\"<\/code>\u00a0\u548c\u00a0<code>\"tan\"<\/code>\u00a0\u662f\u5b57\u6bcd\u5f02\u4f4d\u8bcd\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u4ee5\u91cd\u65b0\u6392\u5217\u4ee5\u5f62\u6210\u5f7c\u6b64\u3002<\/li>\n\n\n\n<li>\u5b57\u7b26\u4e32\u00a0<code>\"ate\"<\/code>\u00a0\uff0c<code>\"eat\"<\/code>\u00a0\u548c\u00a0<code>\"tea\"<\/code>\u00a0\u662f\u5b57\u6bcd\u5f02\u4f4d\u8bcd\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u4ee5\u91cd\u65b0\u6392\u5217\u4ee5\u5f62\u6210\u5f7c\u6b64\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b 2:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u5165:<\/strong>&nbsp;strs = [&#8220;&#8221;]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa:&nbsp;<\/strong>[[&#8220;&#8221;]]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u793a\u4f8b 3:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u5165:<\/strong>&nbsp;strs = [&#8220;a&#8221;]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa:&nbsp;<\/strong>[[&#8220;a&#8221;]]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u63d0\u793a\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>1 &lt;= strs.length &lt;= 10<sup>4<\/sup><\/code><\/li>\n\n\n\n<li><code>0 &lt;= strs[i].length &lt;= 100<\/code><\/li>\n\n\n\n<li><code>strs[i]<\/code>\u00a0\u4ec5\u5305\u542b\u5c0f\u5199\u5b57\u6bcd<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u9898\u601d\u8def\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u9898\u601d\u8def\u975e\u5e38\u660e\u786e\uff0c\u5bf9\u4e8e\u6bcf\u4e2a\u5b57\u4e32\uff0c\u53ea\u9700\u8981\u8003\u8651\u5b57\u6bcd\u7ec4\u6210\u4e0d\u9700\u8981\u8003\u8651\u5176\u4f4d\u7f6e\u3002\u90a3\u6211\u7684\u601d\u8def\u5c31\u662f\uff1a\u8bbe\u7f6e\u4e00\u4e2a26\u5c0f\u5199\u5b57\u6bcd\u7684\u8ba1\u6570\u5668\uff0c\u5bf9\u4e8e\u6bcf\u4e2a\u5b57\u7b26\u8fdb\u884c\u8ba1\u6570\uff0c\u6700\u540e\u6839\u636e\u5c0f\u5199\u5b57\u6bcd\u7684\u987a\u5e8f\u5c06\u6bcf\u4e2a\u5b57\u6bcd\u7684\u4e2a\u6570\u62fc\u63a5\u6210\u5b57\u7b26\u4e32\u3002\u5c06\u62fc\u63a5\u597d\u7684\u5b57\u7b26\u4e32\u7528map\u7ed3\u6784\u63a5\u6536\uff0c\u4f5c\u4e3akey\uff0c\u800cvalue\u662f\u5177\u6709\u8be5\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u96c6\uff0c\u6700\u540e\u5408\u5e76\u7ed3\u679c\u96c6\u5373\u53ef\u3002\u76f4\u63a5\u4e0a\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Solution {\npublic:\n    string countChar(string str) {\n        map&lt;char, int> maps;\n        \n        for (char i = 'a'; i &lt;= 'z'; i++) {\n            maps&#91;i] = 0;\n        }\n        for (int i = 0; i &lt; str.length(); i++) {\n            maps&#91;str&#91;i]]++;\n        }\n        string res = \"\";\n        for (map&lt;char, int>::iterator it = maps.begin(); it != maps.end(); it++) {\n            \n            res += char(it->second+'0');\n        }\n        return res;\n    }\n    vector&lt;vector&lt;string>> groupAnagrams(vector&lt;string>&amp; strs) {\n        vector&lt;vector&lt;string>> res;\n        map&lt;string, vector&lt;string>> maps;\n        for (int i = 0; i &lt; strs.size(); i++) {\n            string str = countChar(strs&#91;i]);\n            if (maps.find(str) == maps.end()) {\n                vector&lt;string> arr;\n                arr.push_back(strs&#91;i]);\n                maps&#91;str] = arr;\n            }\n            else {\n                maps&#91;str].push_back(strs&#91;i]);\n            }\n        }\n        for (map&lt;string, vector&lt;string>>::iterator it = maps.begin(); it != maps.end(); it++) {\n\n            res.push_back(it->second);\n        }\n        return res;\n    }\n};<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2dcountChar()\u65b9\u6cd5\u7528\u4e8e\u5bf9\u5b57\u7b26\u4e32\u8ba1\u6570\u5e76\u8fd4\u56de\u7f16\u7801\uff0c\u4f46\u8be5\u7b97\u6cd5\u590d\u6742\u5ea6\u8f83\u9ad8\uff0c\u6682\u65f6\u8fd8\u672a\u7ec6\u7a76\u539f\u56e0\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper' data-fancybox='post-images' href='http:\/\/wysset.com\/wp-content\/uploads\/2025\/09\/2_groupAnagrams.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1011\" height=\"580\" data-original=\"http:\/\/wysset.com\/wp-content\/uploads\/2025\/09\/2_groupAnagrams.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-25\"  sizes=\"auto, (max-width: 1011px) 100vw, 1011px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u540e\u662f\u539f\u9898\u94fe\u63a5\uff1a<a href=\"https:\/\/leetcode.cn\/problems\/group-anagrams\/description\/?envType=study-plan-v2&amp;envId=top-100-liked\">49.\u5b57\u6bcd\u5f02\u4f4d\u8bcd\u5206\u7ec4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9898\u76ee\u5f88\u7b80\u5355\uff1a \u7ed9\u4f60\u4e00\u4e2a\u5b57\u7b26\u4e32\u6570\u7ec4\uff0c\u8bf7\u4f60\u5c06\u00a0\u5b57\u6bcd\u5f02\u4f4d\u8bcd\u00a0\u7ec4\u5408\u5728 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"footnotes":""},"categories":[2],"tags":[6,4],"class_list":["post-24","post","type-post","status-publish","format-standard","hentry","category-leetcode","tag-hash","tag-middle"],"_links":{"self":[{"href":"https:\/\/wysset.com\/index.php\/wp-json\/wp\/v2\/posts\/24","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wysset.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wysset.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wysset.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wysset.com\/index.php\/wp-json\/wp\/v2\/comments?post=24"}],"version-history":[{"count":1,"href":"https:\/\/wysset.com\/index.php\/wp-json\/wp\/v2\/posts\/24\/revisions"}],"predecessor-version":[{"id":26,"href":"https:\/\/wysset.com\/index.php\/wp-json\/wp\/v2\/posts\/24\/revisions\/26"}],"wp:attachment":[{"href":"https:\/\/wysset.com\/index.php\/wp-json\/wp\/v2\/media?parent=24"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wysset.com\/index.php\/wp-json\/wp\/v2\/categories?post=24"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wysset.com\/index.php\/wp-json\/wp\/v2\/tags?post=24"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}