NaqhDT.json

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    "data": {
        "question": {
            "questionId": "1000295",
            "questionFrontendId": "LCR 043",
            "categoryTitle": "Algorithms",
            "boundTopicId": 910289,
            "title": "完全二叉树插入器",
            "titleSlug": "NaqhDT",
            "content": "<p>English description is not available for the problem. Please switch to Chinese.</p>\n\n<div>\n<div>&nbsp;</div>\n</div>\n",
            "translatedTitle": "完全二叉树插入器",
            "translatedContent": "<p>完全二叉树是每一层（除最后一层外）都是完全填充（即，节点数达到最大，第 <code>n</code> 层有 <code>2<sup>n-1</sup></code>&nbsp;个节点）的，并且所有的节点都尽可能地集中在左侧。</p>\n\n<p>设计一个用完全二叉树初始化的数据结构&nbsp;<code>CBTInserter</code>，它支持以下几种操作：</p>\n\n<ul>\n\t<li><code>CBTInserter(TreeNode root)</code>&nbsp;使用根节点为&nbsp;<code>root</code>&nbsp;的给定树初始化该数据结构；</li>\n\t<li><code>CBTInserter.insert(int v)</code>&nbsp; 向树中插入一个新节点，节点类型为 <code>TreeNode</code>，值为 <code>v</code> 。使树保持完全二叉树的状态，<strong>并返回插入的新节点的父节点的值</strong>；</li>\n\t<li><code>CBTInserter.get_root()</code> 将返回树的根节点。</li>\n</ul>\n\n<p>&nbsp;</p>\n\n<ol>\n</ol>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>inputs = [&quot;CBTInserter&quot;,&quot;insert&quot;,&quot;get_root&quot;], inputs = [[[1]],[2],[]]\n<strong>输出：</strong>[null,1,[1,2]]\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>inputs = [&quot;CBTInserter&quot;,&quot;insert&quot;,&quot;insert&quot;,&quot;get_root&quot;], inputs = [[[1,2,3,4,5,6]],[7],[8],[]]\n<strong>输出：</strong>[null,3,4,[1,2,3,4,5,6,7,8]]\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li>最初给定的树是完全二叉树，且包含&nbsp;<code>1</code>&nbsp;到&nbsp;<code>1000</code>&nbsp;个节点。</li>\n\t<li>每个测试用例最多调用&nbsp;<code>CBTInserter.insert</code>&nbsp; 操作&nbsp;<code>10000</code>&nbsp;次。</li>\n\t<li>给定节点或插入节点的每个值都在&nbsp;<code>0</code>&nbsp;到&nbsp;<code>5000</code>&nbsp;之间。</li>\n</ul>\n\n<p>&nbsp;</p>\n\n<p><meta charset=\"UTF-8\" />注意：本题与主站 919&nbsp;题相同：&nbsp;<a href=\"https://leetcode-cn.com/problems/complete-binary-tree-inserter/\">https://leetcode-cn.com/problems/complete-binary-tree-inserter/</a></p>\n",
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            "topicTags": [
                {
                    "name": "Tree",
                    "slug": "tree",
                    "translatedName": "树",
                    "__typename": "TopicTagNode"
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                    "name": "Breadth-First Search",
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                    "lang": "C++",
                    "langSlug": "cpp",
                    "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 CBTInserter {\npublic:\n    CBTInserter(TreeNode* root) {\n\n    }\n    \n    int insert(int v) {\n\n    }\n    \n    TreeNode* get_root() {\n\n    }\n};\n\n/**\n * Your CBTInserter object will be instantiated and called as such:\n * CBTInserter* obj = new CBTInserter(root);\n * int param_1 = obj->insert(v);\n * TreeNode* param_2 = obj->get_root();\n */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Java",
                    "langSlug": "java",
                    "code": "/**\n * Definition for a binary tree node.\n * public class TreeNode {\n *     int val;\n *     TreeNode left;\n *     TreeNode right;\n *     TreeNode() {}\n *     TreeNode(int val) { this.val = val; }\n *     TreeNode(int val, TreeNode left, TreeNode right) {\n *         this.val = val;\n *         this.left = left;\n *         this.right = right;\n *     }\n * }\n */\nclass CBTInserter {\n\n    public CBTInserter(TreeNode root) {\n\n    }\n    \n    public int insert(int v) {\n\n    }\n    \n    public TreeNode get_root() {\n\n    }\n}\n\n/**\n * Your CBTInserter object will be instantiated and called as such:\n * CBTInserter obj = new CBTInserter(root);\n * int param_1 = obj.insert(v);\n * TreeNode param_2 = obj.get_root();\n */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Python",
                    "langSlug": "python",
                    "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 CBTInserter(object):\n\n    def __init__(self, root):\n        \"\"\"\n        :type root: TreeNode\n        \"\"\"\n\n\n    def insert(self, v):\n        \"\"\"\n        :type v: int\n        :rtype: int\n        \"\"\"\n\n\n    def get_root(self):\n        \"\"\"\n        :rtype: TreeNode\n        \"\"\"\n\n\n\n# Your CBTInserter object will be instantiated and called as such:\n# obj = CBTInserter(root)\n# param_1 = obj.insert(v)\n# param_2 = obj.get_root()",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Python3",
                    "langSlug": "python3",
                    "code": "# Definition for a binary tree node.\n# class TreeNode:\n#     def __init__(self, val=0, left=None, right=None):\n#         self.val = val\n#         self.left = left\n#         self.right = right\nclass CBTInserter:\n\n    def __init__(self, root: TreeNode):\n\n\n    def insert(self, v: int) -> int:\n\n\n    def get_root(self) -> TreeNode:\n\n\n\n# Your CBTInserter object will be instantiated and called as such:\n# obj = CBTInserter(root)\n# param_1 = obj.insert(v)\n# param_2 = obj.get_root()",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "C",
                    "langSlug": "c",
                    "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\n\ntypedef struct {\n\n} CBTInserter;\n\n\nCBTInserter* cBTInserterCreate(struct TreeNode* root) {\n\n}\n\nint cBTInserterInsert(CBTInserter* obj, int v) {\n\n}\n\nstruct TreeNode* cBTInserterGet_root(CBTInserter* obj) {\n\n}\n\nvoid cBTInserterFree(CBTInserter* obj) {\n\n}\n\n/**\n * Your CBTInserter struct will be instantiated and called as such:\n * CBTInserter* obj = cBTInserterCreate(root);\n * int param_1 = cBTInserterInsert(obj, v);\n \n * struct TreeNode* param_2 = cBTInserterGet_root(obj);\n \n * cBTInserterFree(obj);\n*/",
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                {
                    "lang": "C#",
                    "langSlug": "csharp",
                    "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 CBTInserter {\n\n    public CBTInserter(TreeNode root) {\n\n    }\n    \n    public int Insert(int v) {\n\n    }\n    \n    public TreeNode Get_root() {\n\n    }\n}\n\n/**\n * Your CBTInserter object will be instantiated and called as such:\n * CBTInserter obj = new CBTInserter(root);\n * int param_1 = obj.Insert(v);\n * TreeNode param_2 = obj.Get_root();\n */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "JavaScript",
                    "langSlug": "javascript",
                    "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 */\nvar CBTInserter = function(root) {\n\n};\n\n/** \n * @param {number} v\n * @return {number}\n */\nCBTInserter.prototype.insert = function(v) {\n\n};\n\n/**\n * @return {TreeNode}\n */\nCBTInserter.prototype.get_root = function() {\n\n};\n\n/**\n * Your CBTInserter object will be instantiated and called as such:\n * var obj = new CBTInserter(root)\n * var param_1 = obj.insert(v)\n * var param_2 = obj.get_root()\n */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "TypeScript",
                    "langSlug": "typescript",
                    "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\nclass CBTInserter {\n    constructor(root: TreeNode | null) {\n\n    }\n\n    insert(v: number): number {\n\n    }\n\n    get_root(): TreeNode | null {\n\n    }\n}\n\n/**\n * Your CBTInserter object will be instantiated and called as such:\n * var obj = new CBTInserter(root)\n * var param_1 = obj.insert(v)\n * var param_2 = obj.get_root()\n */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "PHP",
                    "langSlug": "php",
                    "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 CBTInserter {\n    /**\n     * @param TreeNode $root\n     */\n    function __construct($root) {\n\n    }\n\n    /**\n     * @param Integer $v\n     * @return Integer\n     */\n    function insert($v) {\n\n    }\n\n    /**\n     * @return TreeNode\n     */\n    function get_root() {\n\n    }\n}\n\n/**\n * Your CBTInserter object will be instantiated and called as such:\n * $obj = CBTInserter($root);\n * $ret_1 = $obj->insert($v);\n * $ret_2 = $obj->get_root();\n */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Swift",
                    "langSlug": "swift",
                    "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 */\n\nclass CBTInserter {\n\n    init(_ root: TreeNode?) {\n\n    }\n    \n    func insert(_ v: Int) -> Int {\n\n    }\n    \n    func get_root() -> TreeNode? {\n\n    }\n}\n\n/**\n * Your CBTInserter object will be instantiated and called as such:\n * let obj = CBTInserter(root)\n * let ret_1: Int = obj.insert(v)\n * let ret_2: TreeNode? = obj.get_root()\n */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Kotlin",
                    "langSlug": "kotlin",
                    "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 CBTInserter(root: TreeNode?) {\n\n    fun insert(v: Int): Int {\n\n    }\n\n    fun get_root(): TreeNode? {\n\n    }\n\n}\n\n/**\n * Your CBTInserter object will be instantiated and called as such:\n * var obj = CBTInserter(root)\n * var param_1 = obj.insert(v)\n * var param_2 = obj.get_root()\n */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Go",
                    "langSlug": "golang",
                    "code": "/**\n * Definition for a binary tree node.\n * type TreeNode struct {\n *     Val int\n *     Left *TreeNode\n *     Right *TreeNode\n * }\n */\ntype CBTInserter struct {\n\n}\n\n\nfunc Constructor(root *TreeNode) CBTInserter {\n\n}\n\n\nfunc (this *CBTInserter) Insert(v int) int {\n\n}\n\n\nfunc (this *CBTInserter) Get_root() *TreeNode {\n\n}\n\n\n/**\n * Your CBTInserter object will be instantiated and called as such:\n * obj := Constructor(root);\n * param_1 := obj.Insert(v);\n * param_2 := obj.Get_root();\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Ruby",
                    "langSlug": "ruby",
                    "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\nclass CBTInserter\n\n=begin\n    :type root: TreeNode\n=end\n    def initialize(root)\n\n    end\n\n\n=begin\n    :type v: Integer\n    :rtype: Integer\n=end\n    def insert(v)\n\n    end\n\n\n=begin\n    :rtype: TreeNode\n=end\n    def get_root()\n\n    end\n\n\nend\n\n# Your CBTInserter object will be instantiated and called as such:\n# obj = CBTInserter.new(root)\n# param_1 = obj.insert(v)\n# param_2 = obj.get_root()",
                    "__typename": "CodeSnippetNode"
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                    "lang": "Scala",
                    "langSlug": "scala",
                    "code": "/**\n * Definition for a binary tree node.\n * class TreeNode(_value: Int = 0, _left: TreeNode = null, _right: TreeNode = null) {\n *   var value: Int = _value\n *   var left: TreeNode = _left\n *   var right: TreeNode = _right\n * }\n */\nclass CBTInserter(_root: TreeNode) {\n\n    def insert(v: Int): Int = {\n\n    }\n\n    def get_root(): TreeNode = {\n\n    }\n\n}\n\n/**\n * Your CBTInserter object will be instantiated and called as such:\n * var obj = new CBTInserter(root)\n * var param_1 = obj.insert(v)\n * var param_2 = obj.get_root()\n */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Rust",
                    "langSlug": "rust",
                    "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// }\nstruct CBTInserter {\n\n}\n\n\n/**\n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl CBTInserter {\n\n    fn new(root: Option<Rc<RefCell<TreeNode>>>) -> Self {\n\n    }\n    \n    fn insert(&self, v: i32) -> i32 {\n\n    }\n    \n    fn get_root(&self) -> Option<Rc<RefCell<TreeNode>>> {\n\n    }\n}\n\n/**\n * Your CBTInserter object will be instantiated and called as such:\n * let obj = CBTInserter::new(root);\n * let ret_1: i32 = obj.insert(v);\n * let ret_2: Option<Rc<RefCell<TreeNode>>> = obj.get_root();\n */",
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                    "lang": "Racket",
                    "langSlug": "racket",
                    "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 cbt-inserter%\n  (class object%\n    (super-new)\n\n    ; root : (or/c tree-node? #f)\n    (init-field\n      root)\n    \n    ; insert : exact-integer? -> exact-integer?\n    (define/public (insert v)\n\n      )\n    ; get_root : -> (or/c tree-node? #f)\n    (define/public (get_root)\n\n      )))\n\n;; Your cbt-inserter% object will be instantiated and called as such:\n;; (define obj (new cbt-inserter% [root root]))\n;; (define param_1 (send obj insert v))\n;; (define param_2 (send obj get_root))",
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                    "lang": "Erlang",
                    "langSlug": "erlang",
                    "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 cbt_inserter_init_(Root :: #tree_node{} | null) -> any().\ncbt_inserter_init_(Root) ->\n  .\n\n-spec cbt_inserter_insert(V :: integer()) -> integer().\ncbt_inserter_insert(V) ->\n  .\n\n-spec cbt_inserter_get_root() -> #tree_node{} | null.\ncbt_inserter_get_root() ->\n  .\n\n\n%% Your functions will be called as such:\n%% cbt_inserter_init_(Root),\n%% Param_1 = cbt_inserter_insert(V),\n%% Param_2 = cbt_inserter_get_root(),\n\n%% cbt_inserter_init_ will be called before every test case, in which you can do some necessary initializations.",
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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 CBTInserter do\n  @spec init_(root :: TreeNode.t | nil) :: any\n  def init_(root) do\n\n  end\n\n  @spec insert(v :: integer) :: integer\n  def insert(v) do\n\n  end\n\n  @spec get_root() :: TreeNode.t | nil\n  def get_root() do\n\n  end\nend\n\n# Your functions will be called as such:\n# CBTInserter.init_(root)\n# param_1 = CBTInserter.insert(v)\n# param_2 = CBTInserter.get_root()\n\n# CBTInserter.init_ will be called before every test case, in which you can do some necessary initializations.",
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