mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-01-11 02:58:13 +08:00
197 lines
24 KiB
JSON
197 lines
24 KiB
JSON
{
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"question": {
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"questionId": "100283",
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"questionFrontendId": "剑指 Offer 07",
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"categoryTitle": "LCOF",
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"boundTopicId": 85521,
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"title": "重建二叉树 LCOF",
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"titleSlug": "zhong-jian-er-cha-shu-lcof",
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"content": "<p>English description is not available for the problem. Please switch to Chinese.</p>",
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"translatedTitle": "重建二叉树",
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"translatedContent": "<p>输入某二叉树的前序遍历和中序遍历的结果，请构建该二叉树并返回其根节点。</p>\n\n<p>假设输入的前序遍历和中序遍历的结果中都不含重复的数字。</p>\n\n<p> </p>\n\n<p><strong>示例 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/02/19/tree.jpg\" />\n<pre>\n<strong>Input:</strong> preorder = [3,9,20,15,7], inorder = [9,3,15,20,7]\n<strong>Output:</strong> [3,9,20,null,null,15,7]\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> preorder = [-1], inorder = [-1]\n<strong>Output:</strong> [-1]\n</pre>\n\n<p> </p>\n\n<p><strong>限制：</strong></p>\n\n<p><code>0 <= 节点个数 <= 5000</code></p>\n\n<p> </p>\n\n<p><strong>注意</strong>：本题与主站 105 题重复：<a href=\"https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/\">https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/</a></p>\n",
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"difficulty": "Medium",
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"topicTags": [
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"name": "Tree",
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"slug": "tree",
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"translatedName": "树",
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"name": "Divide and Conquer",
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"translatedName": "分治",
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"__typename": "TopicTagNode"
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"name": "Binary Tree",
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"translatedName": "二叉树",
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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(int x) : val(x), left(NULL), right(NULL) {}\n * };\n */\nclass Solution {\npublic:\n TreeNode* buildTree(vector<int>& preorder, vector<int>& inorder) {\n\n }\n};",
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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 buildTree(int[] preorder, int[] inorder) {\n\n }\n}",
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},
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{
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"lang": "Python",
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"langSlug": "python",
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"code": "# Definition for a binary tree node.\n# class TreeNode(object):\n# def __init__(self, x):\n# self.val = x\n# self.left = None\n# self.right = None\n\nclass Solution(object):\n def buildTree(self, preorder, inorder):\n \"\"\"\n :type preorder: List[int]\n :type inorder: List[int]\n :rtype: TreeNode\n \"\"\"",
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"code": "# Definition for a binary tree node.\n# class TreeNode:\n# def __init__(self, x):\n# self.val = x\n# self.left = None\n# self.right = None\n\nclass Solution:\n def buildTree(self, preorder: List[int], inorder: List[int]) -> TreeNode:",
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"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * struct TreeNode *left;\n * struct TreeNode *right;\n * };\n */\n\n\nstruct TreeNode* buildTree(int* preorder, int preorderSize, int* inorder, int inorderSize){\n\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 x) { val = x; }\n * }\n */\npublic class Solution {\n public TreeNode BuildTree(int[] preorder, int[] inorder) {\n\n }\n}",
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"lang": "JavaScript",
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"code": "/**\n * Definition for a binary tree node.\n * function TreeNode(val) {\n * this.val = val;\n * this.left = this.right = null;\n * }\n */\n/**\n * @param {number[]} preorder\n * @param {number[]} inorder\n * @return {TreeNode}\n */\nvar buildTree = function(preorder, inorder) {\n\n};",
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{
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"lang": "Ruby",
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"code": "# Definition for a binary tree node.\n# class TreeNode\n# attr_accessor :val, :left, :right\n# def initialize(val)\n# @val = val\n# @left, @right = nil, nil\n# end\n# end\n\n# @param {Integer[]} preorder\n# @param {Integer[]} inorder\n# @return {TreeNode}\ndef build_tree(preorder, inorder)\n\nend",
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"lang": "Swift",
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"langSlug": "swift",
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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(_ val: Int) {\n * self.val = val\n * self.left = nil\n * self.right = nil\n * }\n * }\n */\nclass Solution {\n func buildTree(_ preorder: [Int], _ inorder: [Int]) -> TreeNode? {\n\n }\n}",
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"__typename": "CodeSnippetNode"
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},
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"lang": "Go",
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"langSlug": "golang",
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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 buildTree(preorder []int, inorder []int) *TreeNode {\n\n}",
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"lang": "Scala",
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"code": "/**\n * Definition for a binary tree node.\n * class TreeNode(var _value: Int) {\n * var value: Int = _value\n * var left: TreeNode = null\n * var right: TreeNode = null\n * }\n */\nobject Solution {\n def buildTree(preorder: Array[Int], inorder: Array[Int]): TreeNode = {\n\n }\n}",
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},
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{
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"lang": "Kotlin",
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"langSlug": "kotlin",
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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 buildTree(preorder: IntArray, inorder: IntArray): TreeNode? {\n\n }\n}",
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},
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{
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"lang": "Rust",
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"langSlug": "rust",
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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 build_tree(preorder: Vec<i32>, inorder: Vec<i32>) -> Option<Rc<RefCell<TreeNode>>> {\n\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 $right = null;\n * function __construct($value) { $this->val = $value; }\n * }\n */\nclass Solution {\n\n /**\n * @param Integer[] $preorder\n * @param Integer[] $inorder\n * @return TreeNode\n */\n function buildTree($preorder, $inorder) {\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 buildTree(preorder: number[], inorder: number[]): TreeNode | null {\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 (build-tree preorder inorder)\n (-> (listof exact-integer?) (listof exact-integer?) (or/c tree-node? #f))\n\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 build_tree(Preorder :: [integer()], Inorder :: [integer()]) -> #tree_node{} | null.\nbuild_tree(Preorder, Inorder) ->\n .",
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"langSlug": "elixir",
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"code": "# Definition for a binary tree node.\n#\n# defmodule TreeNode do\n# @type t :: %__MODULE__{\n# val: integer,\n# left: TreeNode.t() | nil,\n# right: TreeNode.t() | nil\n# }\n# defstruct val: 0, left: nil, right: nil\n# end\n\ndefmodule Solution do\n @spec build_tree(preorder :: [integer], inorder :: [integer]) :: TreeNode.t | nil\n def build_tree(preorder, inorder) do\n\n end\nend",
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