Achieve mastery through challenge
Improve your development skills by training with your peers on code kata that continuously challenge and push your coding practice.
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Solve coding challenges and improve your problem-solving abilities
String Reversal
8 kyuReverse a given string without using built-in methods
Fibonacci Sequence
6 kyuGenerate the Fibonacci sequence up to n terms
Array Sorting
7 kyuImplement a custom sorting algorithm
Honor & Ranks
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Earn honor points and rise through the ranks as you solve more challenges
8 KYU
Beginner level challenges
6 KYU
Intermediate challenges
4 KYU
Advanced challenges
1 KYU
Expert level mastery
Community
Join the discussion
Solve challenges together, compare solutions, and learn from others.
Alex Turner
3 days ago
Optimizing solution for Fibonacci
I've solved this kata but my solution runs in O(n^2). Any tips for optimizing it to O(n)?
Samira Khan
1 week ago
JavaScript vs Python for algorithms
Which language do you prefer for algorithm challenges and why?
Carlos Mendez
2 weeks ago
Best practices for recursive functions
Sharing some patterns I've found helpful when writing recursive solutions...
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