left(NULL), right(NULL) {}8* };9*/10classSolution {11private:12intcur;//不去掉这前面的static编译不会通过的13public:14TreeNode* sortedArrayToBST(vector<int>&nums) {15cur =0;16if(nums.size() ==0)17returnNULL;18return
所以,采用自底向上的方式 classSolution2 {public:boolisBalanced(TreeNode*root) {if(root==NULL){returntrue; }intheight=getheight(root);if(height==-1){returnfalse; }returntrue; }intgetheight(TreeNode *root){if(root==NULL){return0; }intlleft=getheight(root->left);inttrigth=getheight(root...
Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as: a binary tree in which the depth of the two subtrees of every node never differ by more than 1. 1. Example 1: Given the following tree [3,9,20,null,null,15,7...
Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two subtrees ofeverynode never differ by more than 1. Hide Tags Tree Depth-first Search 思路:平衡...
balanced-tree.en.md balanced-tree.md basic-algorithm.en.md basic-algorithm.md basic-data-structure.en.md basic-data-structure.md binary-search-1.en.md binary-search-1.md binary-search-2.en.md binary-search-2.md binary-tree-traversal.en.md binary-tree-traversal.md bit.en.md bit.md bloo...
- balanced-binary-tree - No.110 - simple - tree - depth-first-search - recursive Description Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as: a binary tree in which the depth of the two subtrees ofeverynode never ...
leetcode -- 110. Balanced Binary Tree 题目描述题目难度:EasyGivenabinarytree,determineifitisheight-balanced.Forthisproblem,aheight-balancedbinarytreeisdefinedas:abinarytreeinwhichthedepthofthetwosubtreesofevery leetcode -- 108. Convert Sorted Array to Binary Search Tree ...
* Source : https://oj.leetcode.com/problems/balanced-binary-tree/ * * * Given a binary tree, determine if it is height-balanced. * * For this problem, a height-balanced binary tree is defined as a binary tree in which * the depth of the two subtrees of every node never differ by...
Balanced Binary Tree - LeetCode 目录 题目链接 注意点 解法 小结 题目链接 Balanced Binary Tree - LeetCode 注意点 不要访问空结点 解法 解法一:getDep用于求各个点深度的,然后对每个节点的两个子树来比较深度差,时间复杂度为O(NlgN)。 /** * Definition for a binary tree node....
Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two subtrees ofeverynode never differ by more than 1. 保证左右子树的深度差不超过1 ...