Determine if a given string is a palindrome (reads the same forward and backward). Ignore case and consider only alphanumeric characters.
Examples:
Input: text = "racecar"
Output: true
Explanation: Reads the same forward and backward
Input: text = "hello"
Output: false
Explanation: Does not read the same backward
Input: text = "A man a plan a canal Panama"
Output: true
Explanation: Ignoring spaces and case, it is a palindrome
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 Feb 2026
Contest runs February 1 - 28. Complete challenges to climb the leaderboard!
Points are calculated for challenges completed during the contest period.