Given a list of integers and a positive integer n, return a new list with the nth element from the end removed. For example, with n equal to 1, remove the last element. With n equal to 2, remove the second-to-last element. If n is null, less than or equal to zero, or greater than the list size, return the list unchanged. Return null for a null list.
Examples:
Input: nums = new List<Integer>{1, 2, 3, 4, 5}, n = 2
Output: [1, 2, 3, 5]
Explanation: The second element from the end is 4, so it is removed
Input: nums = new List<Integer>{1, 2, 3, 4, 5}, n = 1
Output: [1, 2, 3, 4]
Explanation: The last element (5) is removed
Input: nums = new List<Integer>{1, 2, 3, 4, 5}, n = 5
Output: [2, 3, 4, 5]
Explanation: The fifth element from the end is the first element (1)
Input: nums = new List<Integer>{7}, n = 1
Output: []
Explanation: Single element list becomes empty after removing the last element
Input: nums = null, n = 1
Output: null
Explanation: Null list returns null
Apex Code Editor
Welcome to Lightning Challenge!
Create an Account
Sign up to track your progress, earn points, and compete with others. Your solutions will be saved automatically.
Create accountHow 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 June 2026
Contest runs June 1 - 30. Complete challenges to climb the leaderboard!
Only the 30 daily challenges shown during this contest count toward points. Earlier dailies don't carry over.