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"translatedContent": "<p>请考虑一棵二叉树上所有的叶子,这些叶子的值按从左到右的顺序排列形成一个 <strong>叶值序列 </strong>。</p>\n\n<p><img alt=\"\" src=\"https://s3-lc-upload.s3.amazonaws.com/uploads/2018/07/16/tree.png\" style=\"height: 336px; width: 400px;\" /></p>\n\n<p>举个例子,如上图所示,给定一棵叶值序列为 <code>(6, 7, 4, 9, 8)</code> 的树。</p>\n\n<p>如果有两棵二叉树的叶值序列是相同,那么我们就认为它们是 <em>叶相似 </em>的。</p>\n\n<p>如果给定的两个根结点分别为 <code>root1</code> 和 <code>root2</code> 的树是叶相似的,则返回 <code>true</code>;否则返回 <code>false</code> 。</p>\n\n<p> </p>\n\n<p><strong>示例 1:</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/09/03/leaf-similar-1.jpg\" style=\"height: 237px; width: 600px;\" /></p>\n\n<pre>\n<strong>输入:</strong>root1 = [3,5,1,6,2,9,8,null,null,7,4], root2 = [3,5,1,6,7,4,2,null,null,null,null,null,null,9,8]\n<strong>输出:</strong>true\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/09/03/leaf-similar-2.jpg\" style=\"height: 110px; width: 300px;\" /></p>\n\n<pre>\n<strong>输入:</strong>root1 = [1,2,3], root2 = [1,3,2]\n<strong>输出:</strong>false\n</pre>\n\n<p> </p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li>给定的两棵树结点数在 <code>[1, 200]</code> 范围内</li>\n\t<li>给定的两棵树上的值在 <code>[0, 200]</code> 范围内</li>\n</ul>\n",
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