19. Diameter of Binary Tree ⭐
Length of the longest path between any two nodes in a tree (path may or may not pass through the root).
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Asked in interviews at
Reference implementation (Python)
def diameter_of_binary_tree(root):
max_d = 0
def height(node):
nonlocal max_d
if not node: return 0
left = height(node.left)
right = height(node.right)
max_d = max(max_d, left + right)
return 1 + max(left, right)
height(root)
return max_dEmbed this visualization
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<iframe src="/embed/tree-diameter" 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 19. Diameter of Binary Tree ⭐?
19. Diameter of Binary Tree ⭐ runs in O(n) time and O(h) auxiliary space.
Is the 19. Diameter of Binary Tree ⭐ 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 19. Diameter of Binary Tree ⭐ in interviews?
19. Diameter of Binary Tree ⭐ shows up in interviews at Meta, Google, Uber.
How does the 3D visualization of 19. Diameter of Binary Tree ⭐ 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.