Move all zeros in a list to the end while maintaining the relative order of non-zero elements. Return the modified list. If the input is null, return null.
Examples:
Input: nums = [0, 1, 0, 3, 12]
Output: [1, 3, 12, 0, 0]
Explanation: All zeros moved to end, non-zeros maintain order
Input: nums = [1, 2, 3]
Output: [1, 2, 3]
Explanation: No zeros to move
Input: nums = [0, 0, 0]
Output: [0, 0, 0]
Explanation: All elements are zeros
Apex Code Editor
Welcome to Lightning Challenge!
How It Works
- • Write your solution in the code editor
- • Connect your Salesforce org to test
- • Submit to check if your solution passes
- • Use hints if you get stuck
Contest Alert
🏆 #CodeEveryDay July 2026
Contest runs July 1 - 31. Complete challenges to climb the leaderboard!
Only the 31 daily challenges shown during this contest count toward points. Earlier dailies don't carry over.