Kata Library
Sign Up
Time to claim your honor
Training
Practice
Complete challenging
Kata
to earn honor and ranks. Re-train to hone technique
Freestyle Sparring
Take turns remixing and refactoring others code through
Kumite
Community
Leaderboards
Achieve honor and move up the global leaderboards
Chat
Join our
Discord
server and chat with your fellow code warriors
Discussions
View our
Github Discussions
board to discuss general Codewars topics
About
Docs
Learn about all of the different aspects of Codewars
Blog
Read the latest news from Codewars and the community
Log In
Sign Up
Library
Collections
Newest
Oldest
Popularity
Positive Feedback
Most Completed
Least Completed
Hardest
Easiest
Name
Relevance
Low Satisfaction
All
My Languages
Agda (Beta)
BF (Beta)
C
CFML (Beta)
Clojure
COBOL (Beta)
CoffeeScript
CommonLisp (Beta)
Coq
C++
Crystal
C#
D (Beta)
Dart
Elixir
Elm (Beta)
Erlang (Beta)
Factor (Beta)
Forth (Beta)
Fortran (Beta)
F#
Go
Groovy
Haskell
Haxe (Beta)
Idris (Beta)
Java
JavaScript
Julia (Beta)
Kotlin
λ Calculus (Beta)
Lean
Lua
NASM
Nim (Beta)
Objective-C (Beta)
OCaml (Beta)
Pascal (Beta)
Perl (Beta)
PHP
PowerShell (Beta)
Prolog (Beta)
PureScript (Beta)
Python
R (Beta)
Racket
Raku (Beta)
Reason (Beta)
RISC-V (Beta)
Ruby
Rust
Scala
Shell
Solidity (Beta)
SQL
Swift
TypeScript
VB (Beta)
Approved & Beta
Approved
Beta
All
Kata I have not trained on
Kata I have not completed
Kata I have completed
8 kyu
easiest
7 kyu
6 kyu
5 kyu
4 kyu
3 kyu
2 kyu
1 kyu
hardest
ASCII Art
1
Algebra
2
Algorithms
74
Arrays
4
Binary
1
Combinatorics
1
Cryptography
1
Data Structures
38
Dynamic Programming
1
Functional Programming
1
Fundamentals
48
Games
3
Geometry
9
Lists
1
Logic
74
Mathematics
74
Matrix
1
Memoization
1
Number Theory
1
Object-oriented Programming
2
Performance
3
Permutations
4
Puzzles
7
Recursion
2
Restricted
1
Sorting
5
Strings
23
Theorem Proving
1
Trees
1
FEATURED TAGS
Cryptography
Data Science
Debugging
Games
Tutorials
74 Kata Found
6 kyu
When greatest is less than smallest
413
NaMe613
Mathematics
Logic
Algorithms
6 kyu
Selecting Quotients From an Array
275
raulbc777
1 Issue Reported
Fundamentals
Data Structures
Algorithms
Sorting
Mathematics
Logic
6 kyu
Find a Bunch of Common Elements of Two Lists in a Certain Range
911
raulbc777
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
5 kyu
Working With Coloured Numbers
394
raulbc777
2 Issues Reported
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
Recursion
Dynamic Programming
7 kyu
Total Sums of Coefficients of a Binomial Raised to the Nth-Power
378
raulbc777
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
6 kyu
Remove a Specific Element of an Array
948
raulbc777
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
5 kyu
Pandigital Powers
143
raulbc777
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
5 kyu
Map and Filter to Get a Special Sequence of Integers
132
raulbc777
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
5 kyu
Generate Numbers From Digits #2
110
raulbc777
Fundamentals
Logic
Strings
Data Structures
Algorithms
Mathematics
Number Theory
Permutations
6 kyu
Generating Numbers From Digits #1
368
raulbc777
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
5 kyu
Find the Partition with Maximum Product Value
423
raulbc777
3 Issues Reported
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
5 kyu
Find All the Possible Numbers Multiple of 3 with the Digits of a Positive Integer.
296
raulbc777
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
Permutations
6 kyu
Estimating Amounts of Subsets
2,266
raulbc777
4 Issues Reported
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
5 kyu
Building a Sequence Cocatenating Digits with a Given Order.
192
raulbc777
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
6 kyu
Logical Disjunctions
488
justlemons
Logic
Mathematics
Algorithms
4 kyu
How many numbers III?
4,502
raulbc777
4 Issues Reported
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
6 kyu
Lexicographic Permutations
172
mxwil
1 Issue Reported
Fundamentals
Algorithms
Combinatorics
Mathematics
Logic
Beta
Is Room Reserved?
40
hubencu_st
1 Issue Reported
Status:
Testing & feedback needed
Estimated Rank:
6 kyu
Algorithms
Logic
Mathematics
8 kyu
Heads and Legs
7,727
AcesOfGlory
Algebra
Logic
Mathematics
Algorithms
3 kyu
Do not loose at tic-tac-toe!
211
user5036852
Fundamentals
Arrays
Logic
Mathematics
Algorithms
6 kyu
Search The 0 Sums Combinations in an Array
328
raulbc777
6 Issues Reported
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
7 kyu
Infinitely Nested Radicals
504
Jomopipi
2 Issues Reported
Mathematics
Algorithms
Logic
6 kyu
These aren't the numbers you're looking for! (Find a number by approximation)
526
user5036852
Fundamentals
Logic
Mathematics
Algorithms
6 kyu
Points in the circle
2,077
hubencu_st
1 Issue Reported
Geometry
Algorithms
Logic
Mathematics
Fundamentals
7 kyu
MOD 256 without the MOD operator
3,264
user5036852
3 Issues Reported
Algorithms
Fundamentals
Logic
Mathematics
Restricted
Puzzles
7 kyu
Next Palindromic Number.
4,030
raulbc777
2 Issues Reported
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
3 kyu
Alphabetic Anagrams
6,672
Azuaron
3 Issues Reported
Mathematics
Logic
Strings
Algorithms
6 kyu
Fold an array
11,404
user5036852
Fundamentals
Logic
Mathematics
Algorithms
5 kyu
Number of trailing zeros of N!
57,509
Ivan Diachenko
4 Issues Reported
Algorithms
Logic
Mathematics
6 kyu
Find the integer Partition of k-Length With Maximum or Minimum Value For Its Product Value
455
raulbc777
3 Issues Reported
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
Loading...
Confirm
Collect:
undefined
Loading collection data...