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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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Ad
7 kyu
Paul's Misery
3,624PG1
Fundamentals
Arrays
7 kyu
KISS - Keep It Simple Stupid
1,161j_codez
Strings
Fundamentals
8 kyu
Basic Mathematical Operations
218,254Quickz
Mathematics
Fundamentals
8 kyu
Remove duplicates from list
36,640wichu
Fundamentals
Arrays
Lists
5 kyu
ROT13
26,141hvaara
Strings
Ciphers
Regular Expressions
Algorithms
6 kyu
Convert string to camel case
192,326jhoffner
Regular Expressions
Algorithms
Strings
7 kyu
Disagreeable ascii
821depperm
Strings
Fundamentals
6 kyu
If you can read this...
12,138henryhamon
Fundamentals
6 kyu
Moduli number system
2,049g964
Fundamentals
Mathematics
5 kyu
Land perimeter
4,857St3f4n
Fundamentals
6 kyu
Title Case
37,381user527539
Strings
Fundamentals
6 kyu
Your order, please
169,312iamstone
Strings
Fundamentals
6 kyu
Simple Encryption #1 - Alternating Split
28,537user5036852
Cryptography
Algorithms
Strings
Arrays
Fundamentals
7 kyu
Flatten
12,591xcthulhu
Functional Programming
Arrays
Fundamentals
6 kyu
Organise duplicate numbers in list
2,248dangerdak
Arrays
Sorting
Fundamentals
5 kyu
Maximum subarray sum
79,727knotman90
Algorithms
Lists
Dynamic Programming
Fundamentals
Performance
6 kyu
Detect Pangram
183,006anindyabd
Strings
Data Structures
Fundamentals
7 kyu
Hit Count
3,318glenoakes
Arrays
Fundamentals
6 kyu
Bracket Buster
238EricDalrymple91
Regular Expressions
Fundamentals
5 kyu
RGB To Hex Conversion
132,996jhoffner
Algorithms
6 kyu
Rectangle into Squares
32,556g964
Fundamentals
Geometry
Puzzles
5 kyu
int32 to IPv4
26,464sahglie
Networks
Bits
Algorithms
Retired
Double Cola (retired)
14,993AlexIsHappy
Algorithms
Mathematics
Logic
Numbers
4 kyu
Validate Sudoku with size `NxN`
9,346cbmono
Arrays
Puzzles
Algorithms
Object-oriented Programming
5 kyu
Don't Drink the Water
2,564NateBrady23
Algorithms
Arrays
Sorting
Lists
7 kyu
Convert Integer to Binary
1,985DivyanshBatham
Binary
Fundamentals
6 kyu
Simple Substitution Cipher Helper
3,619jacobb
Ciphers
Security
Object-oriented Programming
Strings
Algorithms
7 kyu
Move all vowels
2,009davidNge
Strings
Fundamentals
5 kyu
Closest Neighbouring Points II
100raulbc777
Fundamentals
Algorithms
Mathematics
7 kyu
Strong password?
892mkelty
Regular Expressions
Fundamentals
6 kyu
Sort the columns of a csv-file
1,034user5036852
Strings
Arrays
Algorithms
Sorting
5 kyu
Basic Nico variation
1,123dcieslak
Ciphers
Strings
Fundamentals
6 kyu
Array reduction
215KenKamau
Algorithms
6 kyu
Remove the parentheses
6,799topping
Strings
Algorithms
Regular Expressions
Fundamentals
6 kyu
Name to Matrix
761Coder_38
Strings
Arrays
Algorithms
Matrix
6 kyu
Nested List Depth
1,409Nmistrata
Lists
Algorithms