classTreeNode{intval; TreeNode left; TreeNode right; TreeNode(intx) { val = x; } }publicclassSolution{publicstaticTreeNodeconstructMaximumBinaryTree(int[] nums){if(nums.length==0)returnnull;intmax=getMaxNumber(nums); TreeNode root=newTreeNode(max); root.left=constructMaximumBinaryTree(getAr...
https://leetcode.com/problems/maximum-binary-tree/ https://leetcode.com/problems/maximum-binary-tree/discuss/106146/C%2B%2B-O(N)-solution https://leetcode.com/problems/maximum-binary-tree/discuss/106194/javac-simple-recursive-method https://leetcode.com/problems/maximum-binary-tree/discuss/106...
题目来源:https://leetcode.com/problems/maximum-binary-tree/description/ Description Given an integer array with no duplicates. A maximum tree building on this array is defined as follow: The root is the maximum number in the array. The left subtree is the maximum tree constructed from left pa...
# Definition for a binary tree node.# class TreeNode:# def __init__(self, x):# self.val = x# self.left = None# self.right = NoneclassSolution:defconstructMaximumBinaryTree(self, nums:List[int]) -> TreeNode:# 特判ifnotnums:returnNone# 找到数组中的最大值和对应的索引maxVal =max(n...
publicclassSolution { publicTreeNode constructMaximumBinaryTree(int[] nums) { if(nums ==null)returnnull; returnbuild(nums,0, nums.length -1); } privateTreeNode build(int[] nums,intstart,intend) { if(start > end)returnnull; intidxMax = start; ...
* TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */classSolution{public:TreeNode*insertIntoMaxTree(TreeNode* root,intval){if(root ==NULL){returnnewTreeNode(val); }else{if(root->val < val){ ...
Leetcode之分治法专题-654. 最大二叉树(Maximum Binary Tree) 给定一个不含重复元素的整数数组。一个以此数组构建的最大二叉树定义如下: 二叉树的根是数组中的最大元素。 左子树是通过数组中最大值左边部分构造出的最大二叉树。 右子树是通过数组中最大值右边部分构造出的最大二叉树。
* TreeNode(int x) { val = x; } * } */ class Solution { public TreeNode constructMaximumBinaryTree(int[] nums) { TreeNode root = null; boolean[] visited = new boolean[nums.length]; root = getRoot(root, nums, visited, 0, nums.length - 1); ...
Time Complexity: O(N), each node is visited once Space Complexity:No extra space is needed other than the recursion function stack References Leetcode official solution
* Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * };*/classSolution {public: TreeNode* build(intl,intr, vector<int> &nums) {intMax =INT_MIN;inttmp = -1;...