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
Algebra
1
Algorithms
7
Arrays
1
Combinatorics
2
Data Structures
7
Fundamentals
19
Lists
1
Logic
4
Mathematics
13
Matrix
1
Number Theory
2
Performance
3
Permutations
19
Probability
2
Sorting
1
Statistics
2
Strings
6
FEATURED TAGS
Cryptography
Data Science
Debugging
Games
Tutorials
19 Kata Found
5 kyu
Find All the Possible Numbers Multiple of 3 with the Digits of a Positive Integer.
272
raulbc777
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
Permutations
6 kyu
Allergy to Palindromes.
445
raulbc777
Fundamentals
Algorithms
Mathematics
Performance
Permutations
6 kyu
Sum of all numbers with the same digits (performance edition)
384
tonylicoding
1 Issue Reported
Performance
Permutations
Fundamentals
6 kyu
Largest Number Arrangement
549
belenox
3 Issues Reported
Permutations
Fundamentals
6 kyu
Is Divisible By 6 Mk II
315
GiacomoSorbi
Permutations
Strings
Combinatorics
Number Theory
Fundamentals
5 kyu
Count The Hits Adding Contiguous Powers!
43
raulbc777
1 Issue Reported
Fundamentals
Mathematics
Permutations
Sorting
Logic
Strings
6 kyu
A1 Thick and Hearty
220
hamurai
1 Issue Reported
Lists
Permutations
Fundamentals
5 kyu
Generate Numbers From Digits #2
97
raulbc777
2 Issues Reported
Fundamentals
Logic
Strings
Data Structures
Algorithms
Mathematics
Number Theory
Permutations
6 kyu
#6 Matrices: How Many Matrices Do These Elements Produce?
207
raulbc777
Permutations
Matrix
Data Structures
Fundamentals
6 kyu
Highest Perfect Square with Same Digits
244
raulbc777
1 Issue Reported
Fundamentals
Data Structures
Algorithms
Mathematics
Performance
Permutations
4 kyu
Great Total Additions of All Possible Arrays from a List.
753
raulbc777
2 Issues Reported
Fundamentals
Mathematics
Permutations
6 kyu
Permutations Of An Array And Associated Values
385
raulbc777
3 Issues Reported
Fundamentals
Mathematics
Data Structures
Permutations
Algorithms
5 kyu
All Star Code Challenge #19
746
shaddyjr
Strings
Combinatorics
Permutations
Arrays
Fundamentals
6 kyu
Multiples by permutations
612
raulbc777
3 Issues Reported
Algorithms
Data Structures
Permutations
Mathematics
Fundamentals
6 kyu
Score From Permutations Of Combinations of an Integer
260
raulbc777
Fundamentals
Mathematics
Permutations
6 kyu
Minimum exact p
68
mentalplex
1 Issue Reported
Mathematics
Statistics
Fundamentals
Permutations
Probability
Beta
Cyclic Notation Permutations
19
cl0wng1rl
1 Issue Reported
Status:
Waiting for issues to be resolved
Estimated Rank:
5 kyu
Permutations
Algebra
Mathematics
Fundamentals
Beta
Exact p
12
mentalplex
3 Issues Reported
Status:
Waiting for issues to be resolved
Mathematics
Statistics
Fundamentals
Permutations
Probability
Beta
Numbers Having Digits Occurring Only Once
11
raulbc777
3 Issues Reported
Status:
Waiting for issues to be resolved
Estimated Rank:
6 kyu
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
Permutations
Confirm
Collect:
undefined
Loading collection data...