mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-01-10 18:48:13 +08:00
181 lines
22 KiB
JSON
181 lines
22 KiB
JSON
{
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"data": {
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"question": {
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"questionId": "1000089",
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"questionFrontendId": "LCP 34",
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"categoryTitle": "Algorithms",
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"boundTopicId": 713323,
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"title": "二叉树染色",
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"titleSlug": "er-cha-shu-ran-se-UGC",
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"content": "English description is not available for the problem. Please switch to Chinese.",
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"translatedTitle": "二叉树染色",
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"translatedContent": "小扣有一个根结点为 `root` 的二叉树模型，初始所有结点均为白色，可以用蓝色染料给模型结点染色，模型的每个结点有一个 `val` 价值。小扣出于美观考虑，希望最后二叉树上每个蓝色相连部分的结点个数不能超过 `k` 个，求所有染成蓝色的结点价值总和最大是多少？\n\n\n**示例 1：**\n> 输入：`root = [5,2,3,4], k = 2`\n>\n> 输出：`12`\n>\n> 解释：`结点 5、3、4 染成蓝色，获得最大的价值 5+3+4=12`\n\n\n\n**示例 2：**\n> 输入：`root = [4,1,3,9,null,null,2], k = 2`\n>\n> 输出：`16`\n>\n> 解释：结点 4、3、9 染成蓝色，获得最大的价值 4+3+9=16\n\n\n\n\n**提示：**\n+ `1 <= k <= 10`\n+ `1 <= val <= 10000`\n+ `1 <= 结点数量 <= 10000`\n ",
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"difficulty": "Medium",
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"likes": 100,
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"contributors": [
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"username": "LeetCode",
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"profileUrl": "/u/leetcode",
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"avatarUrl": "https://assets.leetcode.cn/aliyun-lc-upload/uploaded_files/2021/03/73c9f099-abbe-4d94-853f-f8abffd459cd/leetcode.png",
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"topicTags": [
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"name": "Tree",
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"translatedName": "树",
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"name": "Binary Tree",
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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 int maxValue(TreeNode* root, int k) {\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 int maxValue(TreeNode root, int k) {\n\n }\n}",
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"__typename": "CodeSnippetNode"
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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 maxValue(self, root, k):\n \"\"\"\n :type root: TreeNode\n :type k: int\n :rtype: int\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 maxValue(self, root: TreeNode, k: int) -> int:",
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{
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"lang": "C",
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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\nint maxValue(struct TreeNode* root, int k){\n\n}\n",
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{
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"lang": "C#",
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"langSlug": "csharp",
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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 int MaxValue(TreeNode root, int k) {\n\n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "JavaScript",
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"langSlug": "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 {TreeNode} root\n * @param {number} k\n * @return {number}\n */\nvar maxValue = function(root, k) {\n\n};",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "PHP",
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"langSlug": "php",
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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 TreeNode $root\n * @param Integer $k\n * @return Integer\n */\n function maxValue($root, $k) {\n\n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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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 maxValue(_ root: TreeNode?, _ k: Int) -> Int {\n\n }\n}",
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"__typename": "CodeSnippetNode"
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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 maxValue(root: TreeNode?, k: Int): Int {\n\n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Dart",
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"langSlug": "dart",
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"code": "/**\n * Definition for a binary tree node.\n * class TreeNode {\n * int val;\n * TreeNode? left;\n * TreeNode? right;\n * TreeNode([this.val = 0, this.left, this.right]);\n * }\n */\nclass Solution {\n int maxValue(TreeNode? root, int k) {\n\n }\n}",
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"__typename": "CodeSnippetNode"
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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 maxValue(root *TreeNode, k int) int {\n\n}",
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},
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{
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"lang": "Ruby",
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"langSlug": "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 {TreeNode} root\n# @param {Integer} k\n# @return {Integer}\ndef max_value(root, k)\n\nend",
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"lang": "Scala",
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"langSlug": "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 maxValue(root: TreeNode, k: Int): Int = {\n\n }\n}",
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"__typename": "CodeSnippetNode"
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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 max_value(root: Option<Rc<RefCell<TreeNode>>>, k: i32) -> i32 {\n\n }\n}",
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"__typename": "CodeSnippetNode"
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},
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"lang": "Racket",
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"langSlug": "racket",
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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-value root k)\n (-> (or/c tree-node? #f) exact-integer? exact-integer?)\n\n )",
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"__typename": "CodeSnippetNode"
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{
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"lang": "Erlang",
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"langSlug": "erlang",
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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_value(Root :: #tree_node{} | null, K :: integer()) -> integer().\nmax_value(Root, K) ->\n .",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Elixir",
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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 max_value(root :: TreeNode.t | nil, k :: integer) :: integer\n def max_value(root, k) do\n\n end\nend",
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"__typename": "CodeSnippetNode"
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}
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],
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"hints": [],
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"sampleTestCase": "[5,2,3,4]\n2",
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"metaData": "{\"name\": \"maxValue\", \"params\": [{\"name\": \"root\", \"type\": \"TreeNode\"}, {\"name\": \"k\", \"type\": \"integer\"}], \"return\": {\"type\": \"integer\"}}",
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