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"translatedContent": "<p>给定一棵二叉搜索树和其中的一个节点 <code>p</code> ,找到该节点在树中的中序后继。如果节点没有中序后继,请返回 <code>null</code> 。</p>\n\n<p>节点 <code>p</code> 的后继是值比 <code>p.val</code> 大的节点中键值最小的节点,即按中序遍历的顺序节点 <code>p</code> 的下一个节点。</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/2019/01/23/285_example_1.PNG\" style=\"height: 117px; width: 122px;\" /></p>\n\n<pre>\n<strong>输入:</strong>root = [2,1,3], p = 1\n<strong>输出:</strong>2\n<strong>解释:</strong>这里 1 的中序后继是 2。请注意 p 和返回值都应是 TreeNode 类型。\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2019/01/23/285_example_2.PNG\" style=\"height: 229px; width: 246px;\" /></p>\n\n<pre>\n<strong>输入:</strong>root = [5,3,6,2,4,null,null,1], p = 6\n<strong>输出:</strong>null\n<strong>解释:</strong>因为给出的节点没有中序后继,所以答案就返回 <code>null 了。</code>\n</pre>\n\n<p> </p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li>树中节点的数目在范围 <code>[1, 10<sup>4</sup>]</code> 内。</li>\n\t<li><code>-10<sup>5</sup> <= Node.val <= 10<sup>5</sup></code></li>\n\t<li>树中各节点的值均保证唯一。</li>\n</ul>\n\n<p> </p>\n\n<p><meta charset=\"UTF-8\" />注意:本题与主站 285 题相同: <a href=\"https://leetcode-cn.com/problems/inorder-successor-in-bst/\">https://leetcode-cn.com/problems/inorder-successor-in-bst/</a></p>\n",
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