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"question": {
"questionId": "100178",
"questionFrontendId": "面试题 04.06",
"categoryTitle": "LCCI",
"boundTopicId": 46213,
"title": "Successor LCCI",
"titleSlug": "successor-lcci",
"content": "<p>Write an algorithm to find the &quot;next&quot; node (i.e., in-order successor) of a given node in a binary search tree.</p>\r\n\r\n<p>Return <code>null</code> if there&#39;s no &quot;next&quot; node for the given node.</p>\r\n\r\n<p><strong>Example 1:</strong></p>\r\n\r\n<pre>\r\n<strong>Input:</strong> root = <code>[2,1,3], p = 1\r\n\r\n 2\r\n / \\\r\n1 3\r\n</code>\r\n<strong>Output:</strong> 2</pre>\r\n\r\n<p><strong>Example 2:</strong></p>\r\n\r\n<pre>\r\n<strong>Input:</strong> root = <code>[5,3,6,2,4,null,null,1], p = 6\r\n\r\n 5\r\n / \\\r\n 3 6\r\n / \\\r\n 2 4\r\n / \r\n1\r\n</code>\r\n<strong>Output:</strong> null</pre>\r\n",
"translatedTitle": "后继者",
"translatedContent": "<p>设计一个算法,找出二叉搜索树中指定节点的&ldquo;下一个&rdquo;节点(也即中序后继)。</p>\n\n<p>如果指定节点没有对应的&ldquo;下一个&rdquo;节点,则返回<code>null</code>。</p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre><strong>输入:</strong> root = <code>[2,1,3], p = 1\n\n 2\n / \\\n1 3\n</code>\n<strong>输出:</strong> 2</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre><strong>输入:</strong> root = <code>[5,3,6,2,4,null,null,1], p = 6\n\n 5\n / \\\n 3 6\n / \\\n 2 4\n / \n1\n</code>\n<strong>输出:</strong> null</pre>\n",
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{
"name": "Tree",
"slug": "tree",
"translatedName": "树",
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"name": "Depth-First Search",
"slug": "depth-first-search",
"translatedName": "深度优先搜索",
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"name": "Binary Search Tree",
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"translatedName": "二叉搜索树",
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"code": "/**\n * Definition for a binary tree node.\n * public class TreeNode {\n * int val;\n * TreeNode left;\n * TreeNode right;\n * TreeNode(int x) { val = x; }\n * }\n */\nclass Solution {\n public TreeNode inorderSuccessor(TreeNode root, TreeNode p) {\n\n }\n}",
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"hints": [
"想想中序遍历是如何工作的,并尝试对其进行“逆向工程”。",
"这只是逻辑方法中的一步:一个特定节点的后继节点是右子树的最左节点。如果没有右子树呢?"
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