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"translatedContent": "<p>小镇里有 <code>n</code> 个人,按从 <code>1</code> 到 <code>n</code> 的顺序编号。传言称,这些人中有一个暗地里是小镇法官。</p>\n\n<p>如果小镇法官真的存在,那么:</p>\n\n<ol>\n\t<li>小镇法官不会信任任何人。</li>\n\t<li>每个人(除了小镇法官)都信任这位小镇法官。</li>\n\t<li>只有一个人同时满足属性 <strong>1</strong> 和属性 <strong>2</strong> 。</li>\n</ol>\n\n<p>给你一个数组 <code>trust</code> ,其中 <code>trust[i] = [a<sub>i</sub>, b<sub>i</sub>]</code> 表示编号为 <code>a<sub>i</sub></code> 的人信任编号为 <code>b<sub>i</sub></code> 的人。</p>\n\n<p>如果小镇法官存在并且可以确定他的身份,请返回该法官的编号;否则,返回 <code>-1</code> 。</p>\n\n<p> </p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre>\n<strong>输入:</strong>n = 2, trust = [[1,2]]\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>n = 3, trust = [[1,3],[2,3]]\n<strong>输出:</strong>3\n</pre>\n\n<p><strong>示例 3:</strong></p>\n\n<pre>\n<strong>输入:</strong>n = 3, trust = [[1,3],[2,3],[3,1]]\n<strong>输出:</strong>-1\n</pre>\n \n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>1 <= n <= 1000</code></li>\n\t<li><code>0 <= trust.length <= 10<sup>4</sup></code></li>\n\t<li><code>trust[i].length == 2</code></li>\n\t<li><code>trust</code> 中的所有<code>trust[i] = [a<sub>i</sub>, b<sub>i</sub>]</code> <strong>互不相同</strong></li>\n\t<li><code>a<sub>i</sub> != b<sub>i</sub></code></li>\n\t<li><code>1 <= a<sub>i</sub>, b<sub>i</sub> <= n</code></li>\n</ul>\n",
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