The
Beginner's Guide
Welcome! This guide will help you become familiar with the platform and build confidence solving coding problems - from your very first submission to tackling real interview questions.
Through this guide, you will:
Solving Your First Problem
Follow these steps to solve your first coding problem in the app.
Read the Problem
Understand what the problem is asking. Pay attention to input format, output format, and constraints.
Study the Examples
Look at the sample test cases. Trace through them by hand to make sure you understand the expected behavior.
Write Your Code
Use the code editor to write your solution. Choose your preferred language from the dropdown.
Run & Test
Click "Run" to test your code against the sample cases. Fix any issues until all test cases pass.
Submit
Once all visible test cases pass, submit your solution. Hidden test cases will also be evaluated.
Ready? Try your first problem
Start with the easiest problem in the guide. No experience required.
Basic Problems
Work through these beginner-friendly problems. They are ordered by difficulty - start from the top and work your way down.
Find Maximum in Array
Even or Odd
FizzBuzz
Reverse String
Count Vowels
Sum of Digits
Palindrome Check
Two Sum
Where to Go Next
Now that you've got the basics down, explore more of what the platform has to offer.
Explore Problems
Browse all coding problems by topic, difficulty, and company.
Company OAs
Real online assessment questions grouped company by company.
SQL Practice
Sharpen your database skills with real OA SQL questions.
Keep practicing and you'll be ready for any online assessment.