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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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8 kyu
Removing Elements
76,566MorgzC41
Lists
Arrays
Fundamentals
Retired
Number toString (retired)
19,387YiQi
Bugs
Strings
Data Types
Retired
Watermelon (retired)
22,592AlexIsHappy
Fundamentals
Mathematics
Algorithms
Logic
Numbers
8 kyu
Reversed Strings
356,308jhoffner
Strings
Fundamentals
8 kyu
Sum Mixed Array
100,007PG1
Fundamentals
Strings
Arrays
8 kyu
Count the Monkeys!
68,673PG1
Arrays
Fundamentals
Lists
Algorithms
8 kyu
What is between?
69,696sgwozdz
Fundamentals
Algorithms
8 kyu
A Strange Trip to the Market
15,511sergarrick
Regular Expressions
Strings
Fundamentals
8 kyu
My head is at the wrong end!
48,212PG1
Arrays
Lists
Algorithms
8 kyu
Student's Final Grade
57,067ledocod
Fundamentals
5 kyu
Missing number in Unordered Arithmetic Progression
1,033Hacker Sakana
Algorithms
Mathematics
Performance
8 kyu
CSV representation of array
19,075Dmitry Kudla
Fundamentals
Arrays
Strings
6 kyu
Split Strings
157,349jhoffner
Regular Expressions
Strings
Algorithms
8 kyu
Lario and Muigi Pipe Problem
41,089LiamSorta
Lists
Fundamentals
8 kyu
5 without numbers !!
35,889KH!
Restricted
Fundamentals
Puzzles
8 kyu
Expressions Matter
56,472MrZizoScream
Algorithms
Fundamentals
8 kyu
Multiply the number
21,309san00
Fundamentals
8 kyu
Simple Change Machine
3,273Peter Rhodes
Fundamentals
Strings
8 kyu
Classy Extentions
11,087matt c
Fundamentals
Object-oriented Programming
8 kyu
ASCII Total
13,129user3220651
Fundamentals
7 kyu
Bubblesort Once
6,807donaldsebleung
Algorithms
Tutorials
Sorting
7 kyu
Factory Functions #1 - Creating profile for people
573donaldsebleung
Fundamentals
Tutorials
Object-oriented Programming
7 kyu
Training Time
3,498myjinxin2015
Fundamentals
Tutorials
7 kyu
Factory Functions #2 - Inheritance and Object Composition
378donaldsebleung
Fundamentals
Tutorials
Object-oriented Programming
8 kyu
Classic Hello World
19,077Javatlacati
Fundamentals
Object-oriented Programming
6 kyu
Unique In Order
185,107pinelopi
Algorithms
Fundamentals
5 kyu
String incrementer
48,957parceval
Regular Expressions
Strings
6 kyu
Your order, please
169,761iamstone
Strings
Fundamentals
6 kyu
Highest Scoring Word
100,346PG1
Fundamentals
Strings
Arrays