Create a method that prints a number pattern with the specified number of rows. Each row should contain numbers from 1 up to the row number.
Examples:
Input: rows = 4
Output:
"1
1 2
1 2 3
1 2 3 4"
Explanation: 4 rows with increasing numbers in each row
Input: rows = 2
Output:
"1
1 2"
Explanation: 2 rows with increasing numbers in each row
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 May 2026
Contest runs May 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.