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H6lPxb.json
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{
"data": {
"question": {
"questionId": "1000317",
"questionFrontendId": "剑指 Offer II 117",
"categoryTitle": "LCOF2",
"boundTopicId": 910311,
"title": "相似的字符串",
"titleSlug": "H6lPxb",
"content": "<p>English description is not available for the problem. Please switch to Chinese.</p>",
"translatedTitle": "相似的字符串",
"translatedContent": "<p>如果交换字符串 <code>X</code> 中的两个不同位置的字母，使得它和字符串 <code>Y</code> 相等，那么称 <code>X</code> 和 <code>Y</code> 两个字符串相似。如果这两个字符串本身是相等的，那它们也是相似的。</p>\n\n<p>例如，<code>"tars"</code> 和 <code>"rats"</code> 是相似的 (交换 <code>0</code> 与 <code>2</code> 的位置)； <code>"rats"</code> 和 <code>"arts"</code> 也是相似的，但是 <code>"star"</code> 不与 <code>"tars"</code>，<code>"rats"</code>，或 <code>"arts"</code> 相似。</p>\n\n<p>总之，它们通过相似性形成了两个关联组：<code>{"tars", "rats", "arts"}</code> 和 <code>{"star"}</code>。注意，<code>"tars"</code> 和 <code>"arts"</code> 是在同一组中，即使它们并不相似。形式上，对每个组而言，要确定一个单词在组中，只需要这个词和该组中至少一个单词相似。</p>\n\n<p>给定一个字符串列表 <code>strs</code>。列表中的每个字符串都是 <code>strs</code> 中其它所有字符串的一个 <strong>字母异位词 </strong>。请问 <code>strs</code> 中有多少个相似字符串组？</p>\n\n<p><strong>字母异位词（anagram）</strong>，一种把某个字符串的字母的位置（顺序）加以改换所形成的新词。</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>strs = ["tars","rats","arts","star"]\n<strong>输出：</strong>2\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>strs = ["omv","ovm"]\n<strong>输出：</strong>1\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 <= strs.length <= 300</code></li>\n\t<li><code>1 <= strs[i].length <= 300</code></li>\n\t<li><code>strs[i]</code> 只包含小写字母。</li>\n\t<li><code>strs</code> 中的所有单词都具有相同的长度，且是彼此的字母异位词。</li>\n</ul>\n\n<p> </p>\n\n<p><meta charset=\"UTF-8\" />注意：本题与主站 839 题相同：<a href=\"https://leetcode-cn.com/problems/similar-string-groups/\">https://leetcode-cn.com/problems/similar-string-groups/</a></p>\n",
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"name": "Depth-First Search",
"slug": "depth-first-search",
"translatedName": "深度优先搜索",
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"name": "Breadth-First Search",
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{
"lang": "Elixir",
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"hints": [],
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"sampleTestCase": "[\"tars\",\"rats\",\"arts\",\"star\"]",
"metaData": "{\"name\": \"numSimilarGroups\", \"params\": [{\"name\": \"strs\", \"type\": \"string[]\"}], \"return\": {\"type\": \"integer\"}}",
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