Union of Two Arrays
Combines two arrays and eliminates duplicates to form unified set.
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 union(a, b):
return list(set(a) | set(b))Embed this visualization
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<iframe src="/embed/union-two-arrays" 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 Union of Two Arrays?
Union of Two Arrays runs in O(n + m) time and O(n + m) auxiliary space.
Is the Union of Two Arrays 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 Union of Two Arrays in interviews?
Union of Two Arrays shows up in interviews at Spotify, Google, Airbnb.
How does the 3D visualization of Union of Two Arrays 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.