Count Positive, Negative & Zero
Categorizes numbers based on sign (< 0, > 0, == 0) in a single pass.
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_signs(arr):
pos = neg = zero = 0
for x in arr:
if x > 0: pos += 1
elif x < 0: neg += 1
else: zero += 1
return pos, neg, zeroEmbed this visualization
Drop a live, looping Count Positive, Negative & Zero canvas into a blog post or course page.
<iframe src="/embed/count-pos-neg-zero" 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 Positive, Negative & Zero?
Count Positive, Negative & Zero runs in O(n) time and O(1) auxiliary space.
Is the Count Positive, Negative & Zero 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 Positive, Negative & Zero in interviews?
Count Positive, Negative & Zero shows up in interviews at Netflix, Amazon, ByteDance.
How does the 3D visualization of Count Positive, Negative & Zero 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.