leetcode-problemset/leetcode-cn/originData/satisfiability-of-equality-equations.json

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            "title": "Satisfiability of Equality Equations",
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            "content": "<p>You are given an array of strings <code>equations</code> that represent relationships between variables where each string <code>equations[i]</code> is of length <code>4</code> and takes one of two different forms: <code>&quot;x<sub>i</sub>==y<sub>i</sub>&quot;</code> or <code>&quot;x<sub>i</sub>!=y<sub>i</sub>&quot;</code>.Here, <code>x<sub>i</sub></code> and <code>y<sub>i</sub></code> are lowercase letters (not necessarily different) that represent one-letter variable names.</p>\n\n<p>Return <code>true</code><em> if it is possible to assign integers to variable names so as to satisfy all the given equations, or </em><code>false</code><em> otherwise</em>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> equations = [&quot;a==b&quot;,&quot;b!=a&quot;]\n<strong>Output:</strong> false\n<strong>Explanation:</strong> If we assign say, a = 1 and b = 1, then the first equation is satisfied, but not the second.\nThere is no way to assign the variables to satisfy both equations.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> equations = [&quot;b==a&quot;,&quot;a==b&quot;]\n<strong>Output:</strong> true\n<strong>Explanation:</strong> We could assign a = 1 and b = 1 to satisfy both equations.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= equations.length &lt;= 500</code></li>\n\t<li><code>equations[i].length == 4</code></li>\n\t<li><code>equations[i][0]</code> is a lowercase letter.</li>\n\t<li><code>equations[i][1]</code> is either <code>&#39;=&#39;</code> or <code>&#39;!&#39;</code>.</li>\n\t<li><code>equations[i][2]</code> is <code>&#39;=&#39;</code>.</li>\n\t<li><code>equations[i][3]</code> is a lowercase letter.</li>\n</ul>\n",
            "translatedTitle": "等式方程的可满足性",
            "translatedContent": "<p>给定一个由表示变量之间关系的字符串方程组成的数组，每个字符串方程 <code>equations[i]</code> 的长度为 <code>4</code>，并采用两种不同的形式之一：<code>&quot;a==b&quot;</code> 或&nbsp;<code>&quot;a!=b&quot;</code>。在这里，a 和 b 是小写字母（不一定不同），表示单字母变量名。</p>\n\n<p>只有当可以将整数分配给变量名，以便满足所有给定的方程时才返回&nbsp;<code>true</code>，否则返回 <code>false</code>。&nbsp;</p>\n\n<p>&nbsp;</p>\n\n<ol>\n</ol>\n\n<p><strong>示例 1：</strong></p>\n\n<pre><strong>输入：</strong>[&quot;a==b&quot;,&quot;b!=a&quot;]\n<strong>输出：</strong>false\n<strong>解释：</strong>如果我们指定，a = 1 且 b = 1，那么可以满足第一个方程，但无法满足第二个方程。没有办法分配变量同时满足这两个方程。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre><strong>输入：</strong>[&quot;b==a&quot;,&quot;a==b&quot;]\n<strong>输出：</strong>true\n<strong>解释：</strong>我们可以指定 a = 1 且 b = 1 以满足满足这两个方程。\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre><strong>输入：</strong>[&quot;a==b&quot;,&quot;b==c&quot;,&quot;a==c&quot;]\n<strong>输出：</strong>true\n</pre>\n\n<p><strong>示例 4：</strong></p>\n\n<pre><strong>输入：</strong>[&quot;a==b&quot;,&quot;b!=c&quot;,&quot;c==a&quot;]\n<strong>输出：</strong>false\n</pre>\n\n<p><strong>示例 5：</strong></p>\n\n<pre><strong>输入：</strong>[&quot;c==c&quot;,&quot;b==d&quot;,&quot;x!=z&quot;]\n<strong>输出：</strong>true\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ol>\n\t<li><code>1 &lt;= equations.length &lt;= 500</code></li>\n\t<li><code>equations[i].length == 4</code></li>\n\t<li><code>equations[i][0]</code> 和&nbsp;<code>equations[i][3]</code>&nbsp;是小写字母</li>\n\t<li><code>equations[i][1]</code> 要么是&nbsp;<code>&#39;=&#39;</code>，要么是&nbsp;<code>&#39;!&#39;</code></li>\n\t<li><code>equations[i][2]</code>&nbsp;是&nbsp;<code>&#39;=&#39;</code></li>\n</ol>\n",
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