leetcode-problemset/leetcode-cn/originData/count-pairs-of-similar-strings.json

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        "question": {
            "questionId": "2594",
            "questionFrontendId": "2506",
            "categoryTitle": "Algorithms",
            "boundTopicId": 2022316,
            "title": "Count Pairs Of Similar Strings",
            "titleSlug": "count-pairs-of-similar-strings",
            "content": "<p>You are given a <strong>0-indexed</strong> string array <code>words</code>.</p>\n\n<p>Two strings are <strong>similar</strong> if they consist of the same characters.</p>\n\n<ul>\n\t<li>For example, <code>&quot;abca&quot;</code> and <code>&quot;cba&quot;</code> are similar since both consist of characters <code>&#39;a&#39;</code>, <code>&#39;b&#39;</code>, and <code>&#39;c&#39;</code>.</li>\n\t<li>However, <code>&quot;abacba&quot;</code> and <code>&quot;bcfd&quot;</code> are not similar since they do not consist of the same characters.</li>\n</ul>\n\n<p>Return <em>the number of pairs </em><code>(i, j)</code><em> such that </em><code>0 &lt;= i &lt; j &lt;= word.length - 1</code><em> and the two strings </em><code>words[i]</code><em> and </em><code>words[j]</code><em> are similar</em>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> words = [&quot;aba&quot;,&quot;aabb&quot;,&quot;abcd&quot;,&quot;bac&quot;,&quot;aabc&quot;]\n<strong>Output:</strong> 2\n<strong>Explanation:</strong> There are 2 pairs that satisfy the conditions:\n- i = 0 and j = 1 : both words[0] and words[1] only consist of characters &#39;a&#39; and &#39;b&#39;. \n- i = 3 and j = 4 : both words[3] and words[4] only consist of characters &#39;a&#39;, &#39;b&#39;, and &#39;c&#39;. \n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> words = [&quot;aabb&quot;,&quot;ab&quot;,&quot;ba&quot;]\n<strong>Output:</strong> 3\n<strong>Explanation:</strong> There are 3 pairs that satisfy the conditions:\n- i = 0 and j = 1 : both words[0] and words[1] only consist of characters &#39;a&#39; and &#39;b&#39;. \n- i = 0 and j = 2 : both words[0] and words[2] only consist of characters &#39;a&#39; and &#39;b&#39;.\n- i = 1 and j = 2 : both words[1] and words[2] only consist of characters &#39;a&#39; and &#39;b&#39;.\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> words = [&quot;nba&quot;,&quot;cba&quot;,&quot;dba&quot;]\n<strong>Output:</strong> 0\n<strong>Explanation:</strong> Since there does not exist any pair that satisfies the conditions, we return 0.</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= words.length &lt;= 100</code></li>\n\t<li><code>1 &lt;= words[i].length &lt;= 100</code></li>\n\t<li><code>words[i]</code> consist of only lowercase English letters.</li>\n</ul>\n",
            "translatedTitle": "统计相似字符串对的数目",
            "translatedContent": "<p>给你一个下标从 <strong>0</strong> 开始的字符串数组 <code>words</code> 。</p>\n\n<p>如果两个字符串由相同的字符组成，则认为这两个字符串 <strong>相似</strong> 。</p>\n\n<ul>\n\t<li>例如，<code>\"abca\"</code> 和 <code>\"cba\"</code> 相似，因为它们都由字符 <code>'a'</code>、<code>'b'</code>、<code>'c'</code> 组成。</li>\n\t<li>然而，<code>\"abacba\"</code> 和 <code>\"bcfd\"</code> 不相似，因为它们不是相同字符组成的。</li>\n</ul>\n\n<p>请你找出满足字符串&nbsp;<code>words[i]</code><em> </em>和<em> </em><code>words[j]</code> 相似的下标对<em> </em><code>(i, j)</code><em> </em>，并返回下标对的数目，其中 <code>0 &lt;= i &lt; j &lt;= word.length - 1</code> 。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre><strong>输入：</strong>words = [\"aba\",\"aabb\",\"abcd\",\"bac\",\"aabc\"]\n<strong>输出：</strong>2\n<strong>解释：</strong>共有 2 对满足条件：\n- i = 0 且 j = 1 ：words[0] 和 words[1] 只由字符 'a' 和 'b' 组成。 \n- i = 3 且 j = 4 ：words[3] 和 words[4] 只由字符 'a'、'b' 和 'c' 。 \n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre><strong>输入：</strong>words = [\"aabb\",\"ab\",\"ba\"]\n<strong>输出：</strong>3\n<strong>解释：</strong>共有 3 对满足条件：\n- i = 0 且 j = 1 ：words[0] 和 words[1] 只由字符 'a' 和 'b' 组成。 \n- i = 0 且 j = 2 ：words[0] 和 words[2] 只由字符 'a' 和 'b' 组成。 \n- i = 1 且 j = 2 ：words[1] 和 words[2] 只由字符 'a' 和 'b' 组成。 \n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre><strong>输入：</strong>words = [\"nba\",\"cba\",\"dba\"]\n<strong>输出：</strong>0\n<strong>解释：</strong>不存在满足条件的下标对，返回 0 。</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= words.length &lt;= 100</code></li>\n\t<li><code>1 &lt;= words[i].length &lt;= 100</code></li>\n\t<li><code>words[i]</code> 仅由小写英文字母组成</li>\n</ul>\n",
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                    "code": "class Solution {\npublic:\n    int similarPairs(vector<string>& words) {\n        \n    }\n};",
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                    "code": "class Solution(object):\n    def similarPairs(self, words):\n        \"\"\"\n        :type words: List[str]\n        :rtype: int\n        \"\"\"",
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                    "code": "int similarPairs(char** words, int wordsSize) {\n    \n}",
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            "hints": [
                "How can you check if two strings are similar?",
                "Use a hashSet to store the character of each string."
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