leetcode-problemset/leetcode-cn/originData/maximum-difference-between-node-and-ancestor.json

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        "question": {
            "questionId": "1092",
            "questionFrontendId": "1026",
            "categoryTitle": "Algorithms",
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            "title": "Maximum Difference Between Node and Ancestor",
            "titleSlug": "maximum-difference-between-node-and-ancestor",
            "content": "<p>Given the <code>root</code> of a binary tree, find the maximum value <code>v</code> for which there exist <strong>different</strong> nodes <code>a</code> and <code>b</code> where <code>v = |a.val - b.val|</code> and <code>a</code> is an ancestor of <code>b</code>.</p>\n\n<p>A node <code>a</code> is an ancestor of <code>b</code> if either: any child of <code>a</code> is equal to <code>b</code>&nbsp;or any child of <code>a</code> is an ancestor of <code>b</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/11/09/tmp-tree.jpg\" style=\"width: 400px; height: 390px;\" />\n<pre>\n<strong>Input:</strong> root = [8,3,10,1,6,null,14,null,null,4,7,13]\n<strong>Output:</strong> 7\n<strong>Explanation: </strong>We have various ancestor-node differences, some of which are given below :\n|8 - 3| = 5\n|3 - 7| = 4\n|8 - 1| = 7\n|10 - 13| = 3\nAmong all possible differences, the maximum value of 7 is obtained by |8 - 1| = 7.</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/11/09/tmp-tree-1.jpg\" style=\"width: 250px; height: 349px;\" />\n<pre>\n<strong>Input:</strong> root = [1,null,2,null,0,3]\n<strong>Output:</strong> 3\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li>The number of nodes in the tree is in the range <code>[2, 5000]</code>.</li>\n\t<li><code>0 &lt;= Node.val &lt;= 10<sup>5</sup></code></li>\n</ul>\n",
            "translatedTitle": "节点与其祖先之间的最大差值",
            "translatedContent": "<p>给定二叉树的根节点 <code>root</code>，找出存在于 <strong>不同</strong> 节点 <code>A</code> 和 <code>B</code> 之间的最大值 <code>V</code>，其中 <code>V = |A.val - B.val|</code>，且 <code>A</code> 是 <code>B</code> 的祖先。</p>\n\n<p>（如果 A 的任何子节点之一为 B，或者 A 的任何子节点是 B 的祖先，那么我们认为 A 是 B 的祖先）</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/2020/11/09/tmp-tree.jpg\" style=\"width: 400px; height: 390px;\" /></p>\n\n<pre>\n<strong>输入：</strong>root = [8,3,10,1,6,null,14,null,null,4,7,13]\n<strong>输出：</strong>7\n<strong>解释： </strong>\n我们有大量的节点与其祖先的差值，其中一些如下：\n|8 - 3| = 5\n|3 - 7| = 4\n|8 - 1| = 7\n|10 - 13| = 3\n在所有可能的差值中，最大值 7 由 |8 - 1| = 7 得出。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/11/09/tmp-tree-1.jpg\" style=\"width: 250px; height: 349px;\" />\n<pre>\n<strong>输入：</strong>root = [1,null,2,null,0,3]\n<strong>输出：</strong>3\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li>树中的节点数在 <code>2</code> 到 <code>5000</code> 之间。</li>\n\t<li><code>0 <= Node.val <= 10<sup>5</sup></code></li>\n</ul>\n",
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                    "code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n *     int val;\n *     TreeNode *left;\n *     TreeNode *right;\n *     TreeNode() : val(0), left(nullptr), right(nullptr) {}\n *     TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n *     TreeNode(int x, TreeNode *left, TreeNode *right) : val(x), left(left), right(right) {}\n * };\n */\nclass Solution {\npublic:\n    int maxAncestorDiff(TreeNode* root) {\n\n    }\n};",
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                    "code": "/**\n * Definition for a binary tree node.\n * class TreeNode {\n *     val: number\n *     left: TreeNode | null\n *     right: TreeNode | null\n *     constructor(val?: number, left?: TreeNode | null, right?: TreeNode | null) {\n *         this.val = (val===undefined ? 0 : val)\n *         this.left = (left===undefined ? null : left)\n *         this.right = (right===undefined ? null : right)\n *     }\n * }\n */\n\nfunction maxAncestorDiff(root: TreeNode | null): number {\n    \n};",
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                    "code": "/**\n * Definition for a binary tree node.\n * type TreeNode struct {\n *     Val int\n *     Left *TreeNode\n *     Right *TreeNode\n * }\n */\nfunc maxAncestorDiff(root *TreeNode) int {\n\n}",
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                    "code": "// Definition for a binary tree node.\n// #[derive(Debug, PartialEq, Eq)]\n// pub struct TreeNode {\n//   pub val: i32,\n//   pub left: Option<Rc<RefCell<TreeNode>>>,\n//   pub right: Option<Rc<RefCell<TreeNode>>>,\n// }\n//\n// impl TreeNode {\n//   #[inline]\n//   pub fn new(val: i32) -> Self {\n//     TreeNode {\n//       val,\n//       left: None,\n//       right: None\n//     }\n//   }\n// }\nuse std::rc::Rc;\nuse std::cell::RefCell;\nimpl Solution {\n    pub fn max_ancestor_diff(root: Option<Rc<RefCell<TreeNode>>>) -> i32 {\n\n    }\n}",
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                    "code": "; Definition for a binary tree node.\n#|\n\n; val : integer?\n; left : (or/c tree-node? #f)\n; right : (or/c tree-node? #f)\n(struct tree-node\n  (val left right) #:mutable #:transparent)\n\n; constructor\n(define (make-tree-node [val 0])\n  (tree-node val #f #f))\n\n|#\n\n(define/contract (max-ancestor-diff root)\n  (-> (or/c tree-node? #f) exact-integer?)\n  )",
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                    "code": "%% Definition for a binary tree node.\n%%\n%% -record(tree_node, {val = 0 :: integer(),\n%%                     left = null  :: 'null' | #tree_node{},\n%%                     right = null :: 'null' | #tree_node{}}).\n\n-spec max_ancestor_diff(Root :: #tree_node{} | null) -> integer().\nmax_ancestor_diff(Root) ->\n  .",
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href=\\\"https:\\/\\/github.com\\/emirpasic\\/gods\\/tree\\/v1.18.1\\\" target=\\\"_blank\\\">https:\\/\\/godoc.org\\/github.com\\/emirpasic\\/gods@v1.18.1<\\/a> \\u7b2c\\u4e09\\u65b9\\u5e93\\u3002<\\/p>\"],\"python3\":[\"Python3\",\"<p>\\u7248\\u672c\\uff1a<code>Python 3.10<\\/code><\\/p>\\r\\n\\r\\n<p>\\u4e3a\\u4e86\\u65b9\\u4fbf\\u8d77\\u89c1\\uff0c\\u5927\\u90e8\\u5206\\u5e38\\u7528\\u5e93\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8 \\u5bfc\\u5165\\uff0c\\u5982<a href=\\\"https:\\/\\/docs.python.org\\/3\\/library\\/array.html\\\" target=\\\"_blank\\\">array<\\/a>, <a href=\\\"https:\\/\\/docs.python.org\\/3\\/library\\/bisect.html\\\" target=\\\"_blank\\\">bisect<\\/a>, <a href=\\\"https:\\/\\/docs.python.org\\/3\\/library\\/collections.html\\\" target=\\\"_blank\\\">collections<\\/a>\\u3002 \\u5982\\u679c\\u60a8\\u9700\\u8981\\u4f7f\\u7528\\u5176\\u4ed6\\u5e93\\u51fd\\u6570\\uff0c\\u8bf7\\u81ea\\u884c\\u5bfc\\u5165\\u3002<\\/p>\\r\\n\\r\\n<p>\\u5982\\u9700\\u4f7f\\u7528 Map\\/TreeMap 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