27. Maximum Path Sum ⭐
Finds maximum path sum where path can start and end at any node (LeetCode Hard).
Live loop — open the studio to scrub, add your own array, or race it in Battle Arena.
Asked in interviews at
Reference implementation (Python)
def max_path_sum(root):
max_sum = float('-inf')
def gain(node):
nonlocal max_sum
if not node: return 0
left_gain = max(gain(node.left), 0)
right_gain = max(gain(node.right), 0)
price_newpath = node.val + left_gain + right_gain
max_sum = max(max_sum, price_newpath)
return node.val + max(left_gain, right_gain)
gain(root)
return max_sumEmbed this visualization
Drop a live, looping 27. Maximum Path Sum ⭐ canvas into a blog post or course page.
<iframe src="/embed/tree-max-path-sum" width="100%" height="380" style="border:1px solid #e6e8ec;border-radius:14px" loading="lazy" title="3D algorithm visualization by CodeWithMunnaX"></iframe>Frequently asked
What is the time and space complexity of 27. Maximum Path Sum ⭐?
27. Maximum Path Sum ⭐ runs in O(n) time and O(h) auxiliary space.
Is the 27. Maximum Path Sum ⭐ visualizer free?
The core 3D visualizer, Web Audio chimes and step intuition are free. A one-time ₹49 Pro Pass unlocks advanced algorithms, large custom arrays, Battle Arena and reel export.
Which companies ask 27. Maximum Path Sum ⭐ in interviews?
27. Maximum Path Sum ⭐ shows up in interviews at Microsoft, Apple, Bloomberg.
How does the 3D visualization of 27. Maximum Path Sum ⭐ work?
Each array value becomes a 3D pillar whose height maps to its value. Comparisons glow amber, swaps flash red, and settled elements lock green while a floating pointer badge tracks the active index — synchronized line-by-line with the Python code.