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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
Split Strings
156,836jhoffner
Regular Expressions
Strings
Algorithms
6 kyu
Duplicate Encoder
221,503obnounce
Strings
Arrays
Fundamentals
6 kyu
Detect Pangram
183,047anindyabd
Strings
Data Structures
Fundamentals
6 kyu
Counting Duplicates
230,869kgashok
Strings
Fundamentals
6 kyu
Who likes it?
344,452BattleRattle
Strings
Fundamentals
Retired
IQ Test (retired)
83,595AlexIsHappy
Fundamentals
Logic
6 kyu
Multiples of 3 or 5
425,053jhoffner
Mathematics
Algorithms
6 kyu
Create Phone Number
333,156xDranik
Arrays
Strings
Regular Expressions
Algorithms
6 kyu
Persistent Bugger.
198,029joh_pot
Fundamentals
Mathematics
6 kyu
Your order, please
169,344iamstone
Strings
Fundamentals
5 kyu
Moving Zeros To The End
179,916xcthulhu
Arrays
Sorting
Algorithms
6 kyu
Find the unique number
145,461isqua
Fundamentals
Algorithms
Arrays
Performance
5 kyu
Find the unique string
5,646isqua
Fundamentals
Algorithms
Arrays
Strings
6 kyu
The Supermarket Queue
51,738mattlub
Arrays
Fundamentals
6 kyu
Calculate String Rotation
7,300obnounce
Strings
Arrays
Algorithms
6 kyu
WeIrD StRiNg CaSe
48,230xDranik
Strings
Algorithms
6 kyu
Write Number in Expanded Form
80,366Belax8
Strings
Mathematics
Algorithms
Fundamentals
6 kyu
Write Number in Expanded Form - Part 2
1,996Belax8
Mathematics
Algorithms
Fundamentals
6 kyu
Node Mania
1,176marcsantiago
Linked Lists
Algorithms
Data Structures
6 kyu
Playing with digits
138,153g964
Fundamentals
Mathematics
6 kyu
Find The Parity Outlier
215,544obnounce
Algorithms
Retired
Vasya - Clerk (retired)
54,207AlexIsHappy
Fundamentals
Mathematics
Algorithms
Logic
Numbers
Games
5 kyu
Square Matrix Multiplication
7,249xDranik
Matrix
Linear Algebra
Algorithms
5 kyu
Josephus Permutation
15,591GiacomoSorbi
Mathematics
Permutations
Algorithms
Combinatorics
5 kyu
Josephus Survivor
15,983GiacomoSorbi
Mathematics
Combinatorics
Algorithms
Lists
Arrays