Given two non empty binary treessandt, check whether treethas exactly the same structure and node values with a subtree ofs. A subtree ofsis a tree consists of a node insand all of this node s descen ...
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Given a binary tree, find the largest subtree which is a Binary Search Tree (BST), where largest means subtree with largest number of nodes in it. ...
Given a binary tree rooted at `root`, the *depth* of each node is the shortest distance to the root. A node is deepest if it has the largest depth ...
Given the root of a tree, you are asked to find the most frequent subtree sum. The subtree sum of a node is defined as the sum of all the node ...
问题 判断一棵树是否是另一棵树的子树，如图 思路 问题分两步： 找值相同的根结点（遍历解决） 判断两结点是否包含（递归：值、左孩子、右孩子分别相同） 树节点定义 代码 执行 View Code ...
Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). For example, this binary tree is symmetric ...
An undirected, connected tree with `N` nodes labelled `0...N-1` and `N-1` `edges` are given. The ith edge connects nodes edges[i][0] and edges[i ...
make up a valid tree. For example: Given n = 5 and ...
Given two binary trees, write a function to check if they are the same or not. Two binary trees ...
