Loading...
Choose Language...
JavaScript
CoffeeScript
Ruby
Clojure
Python
C#
Java
Haskell
C++
Elixir
TypeScript
PHP
Swift
Go
Rust
C
R (Beta)
Nim (Beta)
F#
Scala
Lua
Shell
PowerShell (Beta)
Crystal
NASM
Julia (Beta)
Kotlin
Racket
Dart
Factor (Beta)
Prolog (Beta)
Raku (Beta)
COBOL (Beta)
CommonLisp (Beta)
D (Beta)
VB (Beta)
Groovy
Objective-C (Beta)
Fortran (Beta)
CFML (Beta)
RISC-V (Beta)
OCaml (Beta)
Reason (Beta)
Pascal (Beta)
Perl (Beta)
Erlang (Beta)
λ Calculus (Beta)
Haxe (Beta)
Elm (Beta)
BF (Beta)
SQL
PureScript (Beta)
Forth (Beta)
Train Now

Start training on this collection. Each time you skip or complete a kata you will be taken to the next kata in the series. Once you cycle through the items in the collection you will revert back to your normal training routine.

Description

A description has not yet been added for this collection.

Ad
6 kyu
Multiples of 3 or 5
428,183jhoffner
Mathematics
Algorithms
7 kyu
List Filtering
286,531cmgerber
Lists
Filtering
Data Structures
Fundamentals
6 kyu
Find The Parity Outlier
216,802obnounce
Algorithms
7 kyu
Two to One
171,141g964
Fundamentals
6 kyu
Multiplication table
40,530Bugari
Arrays
Fundamentals
7 kyu
The Pony Express
3,270dinglemouse
Fundamentals
6 kyu
Build Tower
101,8428fdafs2
Strings
ASCII Art
Fundamentals
6 kyu
Sort the odd
109,012fyvfyv
Fundamentals
Arrays
Sorting
6 kyu
Consecutive strings
79,922g964
Fundamentals
7 kyu
last digits of a number
5,297jonny_boy
Fundamentals
6 kyu
Create Phone Number
335,463xDranik
Arrays
Strings
Regular Expressions
Algorithms
7 kyu
Get the Middle Character
272,662Shivo
Fundamentals
Strings
7 kyu
The Barksdale Code
2,725milesflo
Cryptography
Puzzles
7 kyu
Vowel Count
418,373jayeshcp
Strings
Fundamentals
6 kyu
Bonuses
1,412g964
Fundamentals
7 kyu
Digitize
14,108mcclaskc
Lists
Algorithms
7 kyu
Ones' Complement
2,498marbiru
Fundamentals
6 kyu
Sequences and Series
6,250BattleRattle
Mathematics
Algorithms
Puzzles
6 kyu
Sums of Parts
24,812g964
Fundamentals
Performance
Algorithms
7 kyu
Evens and Odds
6,962ocirion
Fundamentals
Binary
5 kyu
Missing number in Unordered Arithmetic Progression
1,036Hacker Sakana
Algorithms
Mathematics
Performance
4 kyu
Roman Numerals Helper
30,360jhoffner
Algorithms
Object-oriented Programming
4 kyu
Human readable duration format
83,251davazp
Strings
Date Time
Algorithms
7 kyu
Even and Odd !
2,254Moss_Von
Fundamentals
6 kyu
Who likes it?
347,041BattleRattle
Strings
Fundamentals
6 kyu
Split Strings
158,142jhoffner
Regular Expressions
Strings
Algorithms
6 kyu
Change it up
2,685aec58
Strings
Fundamentals
7 kyu
Char Code Calculation
11,689PG1
Fundamentals
Arrays
Strings
Mathematics
7 kyu
Fix string case
31,795KenKamau
Fundamentals
7 kyu
Nth power rules them all!
7,647jayyv
Fundamentals
Mathematics
Algorithms
Algebra
7 kyu
Least Larger
4,309JohanWiltink
Algorithms
Arrays
6 kyu
Clock in Mirror
3,761aryan-firouzian
Fundamentals
7 kyu
The highest profit wins!
98,136bkaes
Lists
Arrays
Fundamentals
7 kyu
Substring fun
4,987philb56
Arrays
Strings
Fundamentals
6 kyu
Detect Pangram
184,614anindyabd
Strings
Data Structures
Fundamentals
6 kyu
Assemble string
1,613kirull
Strings
Arrays
Fundamentals
8 kyu
Powers of 2
65,852wichu
Mathematics
Fundamentals
Retired
Case Swapping (retired)
6,548joh_pot
Fundamentals
7 kyu
Count the Digit
48,507g964
Fundamentals
8 kyu
If you can't sleep, just count sheep!!
124,670joshra
Fundamentals
Strings
5 kyu
String incrementer
49,202parceval
Regular Expressions
Strings
6 kyu
Determine the date by the day number
1,535LarisaOvchinnikova
Fundamentals
Date Time
Algorithms
8 kyu
Convert a string to an array
145,661samjam48
Arrays
Strings
Fundamentals
7 kyu
Digits explosion
17,989angellaa
Strings
Regular Expressions
Fundamentals
8 kyu
Will you make it?
148,042user2514386
Mathematics
Fundamentals
8 kyu
Volume of a Cuboid
110,697user5196477
Geometry
Fundamentals
Mathematics
8 kyu
Sentence Smash
158,900richardhsu
Strings
Arrays
Fundamentals
7 kyu
Age in days
1,456user5266704
Date Time
Fundamentals
7 kyu
Don't give me five!
41,523user5036852
Mathematics
Arrays
Algorithms
7 kyu
"Very Even" Numbers.
3,990realfg
Fundamentals
Mathematics
Algorithms
7 kyu
Remove All The Marked Elements of a List
11,256raulbc777
Fundamentals
Algorithms
Data Structures
7 kyu
Number-Star ladder
5,744m47r1x
ASCII Art
Fundamentals
6 kyu
If you can read this...
12,178henryhamon
Fundamentals
6 kyu
Give me a Diamond
36,869jayeshcp
Strings
ASCII Art
Fundamentals
6 kyu
Array.diff
287,027marcinbunsch
Arrays
Fundamentals
Algorithms
6 kyu
Convert ISBN-10 to ISBN-13
1,100dienesviktor
Algorithms
Regular Expressions
Fundamentals
Strings
6 kyu
Matrix Transpose
7,730osuushi
Mathematics
Algebra
Matrix
Algorithms
6 kyu
Tribonacci Sequence
155,059GiacomoSorbi
Number Theory
Arrays
Lists
Fundamentals
6 kyu
Fibonacci, Tribonacci and friends
13,329GiacomoSorbi
Arrays
Lists
Number Theory
Fundamentals
6 kyu
IP Validation
42,099wink
Regular Expressions
Algorithms
6 kyu
IP Address to Number
1,998user5854572
Strings
Binary
Networks
Fundamentals
6 kyu
What century is it?
11,191user1511460
Strings
Algorithms
Date Time
6 kyu
Arabian String
2,574dacoxall
Strings
Algorithms
6 kyu
Calculate String Rotation
7,399obnounce
Strings
Arrays
Algorithms
5 kyu
ROT13
26,508hvaara
Strings
Ciphers
Regular Expressions
Algorithms
5 kyu
RGB To Hex Conversion
133,951jhoffner
Algorithms
6 kyu
Odd-heavy Array
2,327aweleshetu
Arrays
Fundamentals
5 kyu
Count IP Addresses
28,800xDranik
Algorithms
5 kyu
ISBN-10 Validation
10,597nklein
Regular Expressions
Algorithms
5 kyu
Ant Bridge
585dinglemouse
Algorithms
4 kyu
Strip Comments
52,912jhoffner
Strings
Algorithms
5 kyu
Beeramid
17,977kylehill
Mathematics
Algorithms
7 kyu
Exes and Ohs
254,507joh_pot
Fundamentals
7 kyu
Survive the attack
2,491EvaRD
Arrays
7 kyu
Hex Hash Sum
2,129Hoff Starr
Mathematics
Security
Fundamentals
6 kyu
More Zeros than Ones
3,521crimbus
Fundamentals
7 kyu
Shortest Word
242,550PG1
Fundamentals
7 kyu
Compress sentences
1,267mikeos
Lists
Algorithms
7 kyu
How Many Unique Consonants?
3,198l-suzuki
Strings
Fundamentals
Algorithms
6 kyu
Remove the parentheses
7,032topping
Strings
Algorithms
Regular Expressions
Fundamentals
6 kyu
Highest Scoring Word
100,815PG1
Fundamentals
Strings
Arrays
7 kyu
How Green Is My Valley?
5,226g964
Fundamentals
7 kyu
Count consonants
8,192bitfragment
Strings
Fundamentals
7 kyu
Binary Addition
179,886garrettguy457
Binary
Fundamentals
6 kyu
Tortoise racing
31,972g964
Fundamentals
Mathematics
Algorithms
7 kyu
Interlocking Binary Pairs
2,670rowcased
Binary
Bits
Algorithms
8 kyu
Reversed Words
86,401jhoffner
Strings
Algorithms
6 kyu
Lottery Ticket
13,280PG1
Fundamentals
Strings
Arrays
7 kyu
Square Every Digit
316,694MysteriousMagenta
Mathematics
Fundamentals