File: root - text - article - 2020 - 01 - maximum-path-sum-in-binary-tree.txt
Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | Home Page | Category: Computing | 445 Views, 25936 Search Bots | 116 Words
| Browse | Archive
![Subscribe to Feed Burner Subscribe to Feed Burner](/images/form/rss.gif)
Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | Home Page | Category: Computing | 445 Views, 25936 Search Bots | 116 Words
![Subscribe to Feed Burner Subscribe to Feed Burner](/images/form/rss.gif)
Hi, here's your problem today. This problem was recently asked by Facebook:
You are given the root of a binary tree. Find the path between 2 nodes that maximizes the sum of all the nodes in the path, and return the sum. The path does not necessarily need to go through the root.
Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | Home Page | Cateogry: Computing | 445 Views, 25936 Search Bots | 116 Words You are given the root of a binary tree. Find the path between 2 nodes that maximizes the sum of all the nodes in the path, and return the sum. The path does not necessarily need to go through the root.
class Node:
def __init__(self, val):
self.val = val
self.left = None
self.right = None
def maxPathSum(root):
# Fill this in.
# (* denotes the max path)
# *10
# / \
# *2 *10
# / \ \
# *20 1 -25
# / \
# 3 4
root = Node(10)
root.left = Node(2)
root.right = Node(10)
root.left.left = Node(20)
root.left.right = Node(1)
root.right.right = Node(-25)
root.right.right.left = Node(3)
root.right.right.right = Node(4)
print maxPathSum(root)
# 42
![Subscribe to Feed Burner Subscribe to Feed Burner](/images/form/rss.gif)
Related Articles
- Daily Interview Problem: Deepest Node in a Binary Tree
- Daily Interview Problem: Buddy Strings
- Daily Interview Problem: Look and Say Sequence
- Daily Interview Problem: First Missing Positive Integer
- Daily Interview Problem: Given two arrays, write a function to compute their intersection.
- Algorithm Interview: Longest Consecutive Sequence
- Binary Tree Level with Minimum Sum
- Daily Interview Question: Find Cycles in a Graph
- Daily Interview Problem: Distribute Bonuses
- Daily Interview Problem: Validate Binary Search Tree
©2006~2024 SteakOverCooked - 0.00737 Seconds(s) - 2648.076 KB/s - 13 Online
Memory: 493.25 KB
18:54:01 up 13 days, 18:33, 2 users, load average: 0.98, 0.86, 0.73 - Server PHP Version: 7.4.33
How to Cook a Perfect Steak? | <meta name="robots" content="noindex, follow" />
![](/images/top.jpg)
18:54:01 up 13 days, 18:33, 2 users, load average: 0.98, 0.86, 0.73 - Server PHP Version: 7.4.33
Read & Write - Normal - Mini - Post - All Comments - Statistics
Be the first one to comment this page !