Move All Zeroes to End
Maintains non-zero boundary pointer and swaps zeroes forward in-place.
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 move_zeroes(arr):
pos = 0
for i in range(len(arr)):
if arr[i] != 0:
arr[pos], arr[i] = arr[i], arr[pos]
pos += 1
return arrEmbed this visualization
Drop a live, looping Move All Zeroes to End canvas into a blog post or course page.
<iframe src="/embed/move-zeroes" 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 Move All Zeroes to End?
Move All Zeroes to End runs in O(n) time and O(1) auxiliary space.
Is the Move All Zeroes to End 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 Move All Zeroes to End in interviews?
Move All Zeroes to End shows up in interviews at Nvidia, Intel, Qualcomm.
How does the 3D visualization of Move All Zeroes to End 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.