Count Even and Odd Elements
Inspects parity using modulo 2 to classify elements into even or odd bins.
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 count_even_odd(arr):
even_count = odd_count = 0
for x in arr:
if x % 2 == 0:
even_count += 1
else:
odd_count += 1
return even_count, odd_countEmbed this visualization
Drop a live, looping Count Even and Odd Elements canvas into a blog post or course page.
<iframe src="/embed/count-even-odd" 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 Count Even and Odd Elements?
Count Even and Odd Elements runs in O(n) time and O(1) auxiliary space.
Is the Count Even and Odd Elements 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 Count Even and Odd Elements in interviews?
Count Even and Odd Elements shows up in interviews at Oracle, Cisco, PayPal.
How does the 3D visualization of Count Even and Odd Elements 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.