}//对每个节点遍历求左右两个节点的做大加上本身,然后取最大的值就是maximum path sum了intmaxPathSum(TreeNode *root) {if(!root)return0;inttmpl = INT_MIN, tmpr =INT_MIN;intcur =curMax(root);if(root ->left) tmpl= maxPathSum(root ->left);if(root
Given a binary tree, find the maximum path sum. For this problem, a path is defined as any sequence of nodes from some starting node to any node in the tree along the parent-child connections. The path does not need to go through the root. For example: Given the below binary tree, ...
* TreeNode right; * TreeNode(int x){val = x;}*}*/publicclassSolution{publicintmaxPathSum(TreeNoderoot){intmax[]=newint[1];max[0]=Integer.MIN_VALUE;calculateSum(root,max);returnmax[0];}publicintcalculateSum(TreeNoderoot,int[]max){if(root==null)return0;intleft=calculateSum(root.left...
The path may start and end at any node in the tree. For example: Given the below binary tree, 1 / \ 2 3 1. 2. 3. Return6. 关键点1: 分析:http:///2013/01/leetcode-binary-tree-maximum-path-sum.html For each node like following, there should be four ways existing for max path...
Binary Tree Maximum Path Sum 83 -- 5:41 App Leetcode-0111. Minimum Depth of Binary Tree 76 -- 1:11 App Leetcode-0104. Maximum Depth of Binary Tree 8 -- 5:41 App Leetcode-0110. Balanced Binary Tree 23 -- 6:11 App Leetcode-0114. Flatten Binary Tree to Linked List 89 ...
http://www.programcreek.com/2013/02/leetcode-binary-tree-maximum-path-sum-java/ 另外,这道题目的BST条件,似乎没什么用。因为如果全是负数,BST也没帮助了。 ** 总结: pre-order -> top-down post-order -> bottom-up in-order -> ? level-order -> bfs ...
Thepath sumof a path is the sum of the node's values in the path. Given the root of a binary tree, returnthe maximumpath sumof any path. class Solution { int res = Integer.MIN_VALUE; public int maxPathSum(TreeNode root) {
Given a binary tree, find the maximum path sum. The path may start and end atany nodein the tree. For example: Given the below binary tree, 1 / 2 3 Return6. 分析:设f(p) 是以节点p作为路径端点的最大路径和,例如下面的树 f(2) = 2+5=7, f(3) = 3+6=9, f(1) = f(3)+1...
leetcode:Binary Tree Maximum Path Sum | LeetCode OJ lintcode:(94) Binary Tree Maximum Path Sum Problem Statement Given a binary tree, find the maximum path sum. The path may start and end at any node in the tree. Example Given the below binary tree: ...
leetcode-124-Binary Tree Maximum Path Sum 题目描述: Given a binary tree, find the maximum path sum. For this problem, a path is defined as any sequence of nodes from some starting node to any node in the tree along the parent-child...