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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.

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6 kyu
Extract the contents of a given tag from the HTML document
160PiotrBerebecki
Strings
Regular Expressions
Data Structures
Arrays
Fundamentals
6 kyu
Linked Lists - Sorted Merge
730JDeBolt
Linked Lists
Data Structures
Algorithms
6 kyu
Linked Lists - Shuffle Merge
695JDeBolt
Linked Lists
Data Structures
Algorithms
6 kyu
Break camelCase
119,522hakt
Strings
Fundamentals
6 kyu
CamelCase Method
45,686bestwebua
Fundamentals
Algorithms
Strings
5 kyu
Scramblies
55,186joh_pot
Strings
Performance
Algorithms
6 kyu
Character Counter and Bars Graph
261mmalkavian
ASCII Art
Arrays
Fundamentals
6 kyu
Most Consecutive Zeros of a Binary Number
566ajLapid718
Fundamentals
Mathematics
Strings
6 kyu
Count the smiley faces!
96,619St3f4n
Regular Expressions
Fundamentals
5 kyu
Molecule to atoms
5,893romanzes
Parsing
Algorithms
Strings
6 kyu
Fold an array
11,056user5036852
Fundamentals
Logic
Mathematics
Algorithms
5 kyu
Replicate `new`
6,909glebec
Object-oriented Programming
Fundamentals
4 kyu
Currying vs. Partial Application
2,645surtich
Functional Programming
5 kyu
String incrementer
48,806parceval
Regular Expressions
Strings
6 kyu
Persistent Bugger.
197,994joh_pot
Fundamentals
Mathematics
6 kyu
Which filetypes are you using the most?
956ok-john
Fundamentals
Algorithms
Strings
Arrays
6 kyu
Matrix Addition
13,527xDranik
Matrix
Arrays
Algorithms
7 kyu
After(?) Midnight
1,182Aquila
Date Time
Algorithms
7 kyu
Hex Word Sum
781user3230350
Fundamentals
Strings
5 kyu
Langton's ant
444St3f4n
Recursion
Algorithms
6 kyu
Vowel Recognition
709sazzadshopno
Algorithms
Performance
6 kyu
Who likes it?
344,375BattleRattle
Strings
Fundamentals
6 kyu
Heathrow to London
70SamTay
Functional Programming
Algorithms
6 kyu
IntroToArt
757citharista
Arrays
Strings
ASCII Art
Fundamentals
6 kyu
Potion Class 101
2,520Mishaboo
Algorithms
Object-oriented Programming
6 kyu
How many nines?
289Paul Robertson
Mathematics
Puzzles
5 kyu
Basic markdown to HTML
100limeyb7
Strings
Regular Expressions
Algorithms
5 kyu
Poker cards encoder/decoder
1,658thisFeeling
Strings
Games
Algorithms