This algorithm touch each node once and thus runs in time O(n), where n is the total number of nodes in the tree. It requires O(h) space for recursion, where h is the height of the tree. Solution - Iteration Thi
A binary tree's maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. 英文版地址 leetcode.com/problems/m 中文版描述 给定一个二叉树,找出其最大深度。二叉树的深度为根节点到最远叶子节点的最长路径上的节点数。 说明: 叶子节点是指没有...
In this article, we will modify the level order tree traversal algorithm to find the maximum width of a binary tree. In the previous post on balanced binary
Given a binary tree, write a function to get the maximum width of the given tree. The width of a tree is the maximum width among all levels. The binary tree has the same structure as a full binary tree, but some nodes are null. The width of one level is defined as the length betw...
使用全局变量也可以完成, 类似 110. Balanced Binary Tree* classSolution{ private: intres=0; intheight(TreeNode*root) { if(!root)return0; autol=height(root->left); autor=height(root->right); res=max(res,l>r?l+1:r+1); ...
Binary tree is a special kind of tree where each node has a maximum of two children. The topmost node in the tree is called 'root' node. The left reference of the root node is called the 'left child' while the right reference is called the 'right child' of the ...
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description:Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. Note: A leaf is a node with no children. Example: Given binary tree [3,9,20,null,null,15,7], ...
problem: Given the root of a binary tree, find the maximum value V for which there exists different nodes A and B where V = |A.val - B.val| ... 查看原文 1026. Maximum Difference Between Node and Ancestor 题目: Given the root of a binary tree, find the maximum value V for ...
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. 思想: 先序遍历。既要返回左右子树判断的结果,又要返回左右子树的深度进行再...