Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given ...
If the depth of a tree is smaller than , then this tree can be represented by a list of three digits integers. For each integer in this list: The hundreds digit represents the depthDof this node, lt ...
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Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given ...
題目: Binary Tree Maximum Path Sum Given a binary tree, find the maximum path sum. The path may start and end at any node in the tree. For example ...
and sum = 22, return 這道二叉樹路徑之和在之前那道題 Path Sum 的 ...
Given a non-empty binary tree, find the maximum path sum. For this problem, a path is defined as any sequence of nodes from some ...
You are given a binary tree in which each node contains an integer value. Find the number of paths that sum to a given value. The path does ...
問題 給出一個二叉樹,找到其中的最大路徑和。 路徑可以從樹中任意一個節點開始和結束。 例如: 給出如下二叉樹, 1 / \ 2 3 返回6。 初始思路 為了簡化分析,我們先假設二叉樹中所有節點的值都是正數。通過觀察可以發現,一棵 ...
們一個二叉樹,讓我們返回所有根到葉節點的路徑,跟之前那道Path Sum II很類似,比那道稍微簡單一些, ...
二叉樹的深度的概念最值得注意的地方,在於 到"葉子"節點的距離。 一般來說,如果直接說“深度”,都是指最大深度,即最遠葉子的距離。 這里放兩道例題,最小深度和最大深度。 1. 二叉樹的最小深度 Given a binary tree, find its minimum depth. ...