Kata Library: Kotlin Practice
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
Algorithms
20
Arrays
61
Binary Trees
1
Ciphers
1
Combinatorics
1
Cryptography
1
Data Structures
2
Functional Programming
1
Fundamentals
36
Games
1
Lists
10
Logic
1
Mathematics
7
Number Theory
1
Object-oriented Programming
2
Parsing
1
Performance
3
Puzzles
4
Queues
1
Recursion
3
Refactoring
2
Regular Expressions
2
Searching
1
Security
1
Sorting
4
Strings
17
Tutorials
1
FEATURED TAGS
Cryptography
Data Science
Debugging
Games
Tutorials
61 Kata Found
6 kyu
English beggars
9,841
GiacomoSorbi
Queues
Arrays
Lists
Recursion
Fundamentals
8 kyu
Invert values
180,778
user7657844
1 Issue Reported
Lists
Fundamentals
Arrays
8 kyu
Total amount of points
118,516
petrosernivka
1 Issue Reported
Fundamentals
Arrays
Strings
8 kyu
Convert a string to an array
157,624
samjam48
3 Issues Reported
Arrays
Strings
Fundamentals
8 kyu
Beginner - Reduce but Grow
170,490
PG1
1 Issue Reported
Fundamentals
Arrays
8 kyu
Beginner - Lost Without a Map
203,173
PG1
3 Issues Reported
Fundamentals
Arrays
8 kyu
Convert number to reversed array of digits
202,889
emporio
Arrays
Fundamentals
8 kyu
Square(n) Sum
307,735
jhoffner
1 Issue Reported
Arrays
Lists
Fundamentals
8 kyu
Sum of positive
333,720
JbPasquier
Arrays
Fundamentals
6 kyu
Equal Sides Of An Array
134,023
Shivo
Algorithms
Arrays
Fundamentals
5 kyu
Implementing Quicksort
293
brodiemark
Sorting
Recursion
Arrays
Tutorials
7 kyu
Extra Perfect Numbers (Special Numbers Series #7)
7,622
MrZizoScream
1 Issue Reported
Fundamentals
Arrays
6 kyu
Finding the Incorrect Value in a Binary Tree
446
brodiemark
Binary Trees
Arrays
6 kyu
Mexican Wave
74,799
adrian.eyre
3 Issues Reported
Arrays
Strings
Fundamentals
8 kyu
Count of positives / sum of negatives
164,862
Dentzil
10 Issues Reported
Fundamentals
Arrays
Lists
7 kyu
The 'spiraling' box
2,000
brodiemark
1 Issue Reported
Arrays
Fundamentals
6 kyu
Flip Your Stack (of Pancakes)
550
brodiemark
Arrays
Sorting
7 kyu
Latin Squares
2,180
brodiemark
Arrays
6 kyu
Two Sets of Equal Sum
1,316
brodiemark
Arrays
Algorithms
7 kyu
Looking for a benefactor
10,984
g964
Fundamentals
Arrays
7 kyu
Even numbers in an array
21,948
Dmitry Kudla
1 Issue Reported
Fundamentals
Arrays
4 kyu
Sum by Factors
20,214
g964
3 Issues Reported
Arrays
Algorithms
Mathematics
6 kyu
Reducing by steps
4,524
g964
3 Issues Reported
Mathematics
Arrays
Functional Programming
Lists
Data Structures
7 kyu
Parts of a list
18,012
g964
1 Issue Reported
Arrays
Lists
Data Structures
Algorithms
6 kyu
PI approximation
5,765
g964
2 Issues Reported
Arrays
Mathematics
Fundamentals
6 kyu
Highest Scoring Word
106,841
PG1
1 Issue Reported
Fundamentals
Strings
Arrays
7 kyu
The Office I - Outed
10,063
PG1
3 Issues Reported
Fundamentals
Arrays
6 kyu
Multiplication table
43,594
Bugari
1 Issue Reported
Arrays
Fundamentals
5 kyu
Josephus Survivor
16,949
GiacomoSorbi
1 Issue Reported
Mathematics
Combinatorics
Algorithms
Lists
Arrays
6 kyu
Tribonacci Sequence
162,189
GiacomoSorbi
7 Issues Reported
Number Theory
Arrays
Lists
Fundamentals
Loading...
Confirm
Collect:
undefined
Loading collection data...