mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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180 lines
28 KiB
JSON
180 lines
28 KiB
JSON
{
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"data": {
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"question": {
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"questionId": "784",
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"questionFrontendId": "701",
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"categoryTitle": "Algorithms",
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"boundTopicId": 1095,
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"title": "Insert into a Binary Search Tree",
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"titleSlug": "insert-into-a-binary-search-tree",
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"content": "<p>You are given the <code>root</code> node of a binary search tree (BST) and a <code>value</code> to insert into the tree. Return <em>the root node of the BST after the insertion</em>. It is <strong>guaranteed</strong> that the new value does not exist in the original BST.</p>\n\n<p><strong>Notice</strong> that there may exist multiple valid ways for the insertion, as long as the tree remains a BST after insertion. You can return <strong>any of them</strong>.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/10/05/insertbst.jpg\" style=\"width: 752px; height: 221px;\" />\n<pre>\n<strong>Input:</strong> root = [4,2,7,1,3], val = 5\n<strong>Output:</strong> [4,2,7,1,3,5]\n<strong>Explanation:</strong> Another accepted tree is:\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/10/05/bst.jpg\" style=\"width: 352px; height: 301px;\" />\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> root = [40,20,60,10,30,50,70], val = 25\n<strong>Output:</strong> [40,20,60,10,30,50,70,null,null,25]\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> root = [4,2,7,1,3,null,null,null,null,null,null], val = 5\n<strong>Output:</strong> [4,2,7,1,3,5]\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li>The number of nodes in the tree will be in the range <code>[0, 10<sup>4</sup>]</code>.</li>\n\t<li><code>-10<sup>8</sup> <= Node.val <= 10<sup>8</sup></code></li>\n\t<li>All the values <code>Node.val</code> are <strong>unique</strong>.</li>\n\t<li><code>-10<sup>8</sup> <= val <= 10<sup>8</sup></code></li>\n\t<li>It's <strong>guaranteed</strong> that <code>val</code> does not exist in the original BST.</li>\n</ul>\n",
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"translatedTitle": "二叉搜索树中的插入操作",
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"translatedContent": "<p>给定二叉搜索树（BST）的根节点<meta charset=\"UTF-8\" /> <code>root</code> 和要插入树中的值<meta charset=\"UTF-8\" /> <code>value</code> ，将值插入二叉搜索树。 返回插入后二叉搜索树的根节点。 输入数据 <strong>保证</strong> ，新值和原始二叉搜索树中的任意节点值都不同。</p>\n\n<p><strong>注意</strong>，可能存在多种有效的插入方式，只要树在插入后仍保持为二叉搜索树即可。 你可以返回 <strong>任意有效的结果</strong> 。</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/10/05/insertbst.jpg\" />\n<pre>\n<strong>输入：</strong>root = [4,2,7,1,3], val = 5\n<strong>输出：</strong>[4,2,7,1,3,5]\n<strong>解释：</strong>另一个满足题目要求可以通过的树是：\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/10/05/bst.jpg\" />\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>root = [40,20,60,10,30,50,70], val = 25\n<strong>输出：</strong>[40,20,60,10,30,50,70,null,null,25]\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre>\n<strong>输入：</strong>root = [4,2,7,1,3,null,null,null,null,null,null], val = 5\n<strong>输出：</strong>[4,2,7,1,3,5]\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li>树中的节点数将在<meta charset=\"UTF-8\" /> <code>[0, 10<sup>4</sup>]</code>的范围内。<meta charset=\"UTF-8\" /></li>\n\t<li><code>-10<sup>8</sup> <= Node.val <= 10<sup>8</sup></code></li>\n\t<li>所有值 <meta charset=\"UTF-8\" /><code>Node.val</code> 是 <strong>独一无二</strong> 的。</li>\n\t<li><code>-10<sup>8</sup> <= val <= 10<sup>8</sup></code></li>\n\t<li><strong>保证</strong> <code>val</code> 在原始BST中不存在。</li>\n</ul>\n",
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"code": "# Definition for a binary tree node.\n# class TreeNode(object):\n# def __init__(self, val=0, left=None, right=None):\n# self.val = val\n# self.left = left\n# self.right = right\nclass Solution(object):\n def insertIntoBST(self, root, val):\n \"\"\"\n :type root: TreeNode\n :type val: int\n :rtype: TreeNode\n \"\"\"\n ",
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"code": "/**\n * Definition for a binary tree node.\n * public class TreeNode {\n * public int val;\n * public TreeNode left;\n * public TreeNode right;\n * public TreeNode(int val=0, TreeNode left=null, TreeNode right=null) {\n * this.val = val;\n * this.left = left;\n * this.right = right;\n * }\n * }\n */\npublic class Solution {\n public TreeNode InsertIntoBST(TreeNode root, int val) {\n\n }\n}",
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"code": "/**\n * Definition for a binary tree node.\n * function TreeNode(val, left, right) {\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 * @param {TreeNode} root\n * @param {number} val\n * @return {TreeNode}\n */\nvar insertIntoBST = function(root, val) {\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 insertIntoBST(root: TreeNode | null, val: number): TreeNode | null {\n \n};",
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"code": "/**\n * Definition for a binary tree node.\n * class TreeNode {\n * public $val = null;\n * public $left = null;\n * public $right = null;\n * function __construct($val = 0, $left = null, $right = null) {\n * $this->val = $val;\n * $this->left = $left;\n * $this->right = $right;\n * }\n * }\n */\nclass Solution {\n\n /**\n * @param TreeNode $root\n * @param Integer $val\n * @return TreeNode\n */\n function insertIntoBST($root, $val) {\n\n }\n}",
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"code": "/**\n * Definition for a binary tree node.\n * public class TreeNode {\n * public var val: Int\n * public var left: TreeNode?\n * public var right: TreeNode?\n * public init() { self.val = 0; self.left = nil; self.right = nil; }\n * public init(_ val: Int) { self.val = val; self.left = nil; self.right = nil; }\n * public init(_ val: Int, _ left: TreeNode?, _ right: TreeNode?) {\n * self.val = val\n * self.left = left\n * self.right = right\n * }\n * }\n */\nclass Solution {\n func insertIntoBST(_ root: TreeNode?, _ val: Int) -> TreeNode? {\n\n }\n}",
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"code": "/**\n * Example:\n * var ti = TreeNode(5)\n * var v = ti.`val`\n * Definition for a binary tree node.\n * class TreeNode(var `val`: Int) {\n * var left: TreeNode? = null\n * var right: TreeNode? = null\n * }\n */\nclass Solution {\n fun insertIntoBST(root: TreeNode?, `val`: Int): TreeNode? {\n\n }\n}",
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"code": "# Definition for a binary tree node.\n# class TreeNode\n# attr_accessor :val, :left, :right\n# def initialize(val = 0, left = nil, right = nil)\n# @val = val\n# @left = left\n# @right = right\n# end\n# end\n# @param {TreeNode} root\n# @param {Integer} val\n# @return {TreeNode}\ndef insert_into_bst(root, val)\n\nend",
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