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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
3,558PG1
Fundamentals
Arrays
7 kyu
KISS - Keep It Simple Stupid
1,135j_codez
Strings
Fundamentals
8 kyu
Basic Mathematical Operations
204,436Quickz
Mathematics
Fundamentals
8 kyu
Remove duplicates from list
33,163wichu
Fundamentals
Arrays
Lists
5 kyu
ROT13
24,155hvaara
Strings
Ciphers
Regular Expressions
Algorithms
6 kyu
Convert string to camel case
182,116jhoffner
Regular Expressions
Algorithms
Strings
6 kyu
If you can read this...
11,237henryhamon
Fundamentals
5 kyu
Land perimeter
4,746St3f4n
Fundamentals
6 kyu
Title Case
36,301user527539
Strings
Fundamentals
6 kyu
Your order, please
160,901iamstone
Strings
Fundamentals
6 kyu
Simple Encryption #1 - Alternating Split
27,706user5036852
Cryptography
Algorithms
Strings
Arrays
Fundamentals
7 kyu
Flatten
12,418xcthulhu
Functional Programming
Arrays
Fundamentals
6 kyu
Organise duplicate numbers in list
2,176dangerdak
Arrays
Sorting
Fundamentals
5 kyu
Maximum subarray sum
76,625knotman90
Algorithms
Lists
Dynamic Programming
Fundamentals
Performance
6 kyu
Detect Pangram
173,140anindyabd
Strings
Data Structures
Fundamentals
7 kyu
Hit Count
3,238glenoakes
Arrays
Fundamentals
6 kyu
Bracket Buster
231EricDalrymple91
Regular Expressions
Fundamentals
5 kyu
RGB To Hex Conversion
126,258jhoffner
Algorithms
6 kyu
Rectangle into Squares
31,725g964
Fundamentals
Geometry
Puzzles
5 kyu
int32 to IPv4
25,305sahglie
Networks
Bits
Algorithms
Retired
Double Cola (retired)
14,993AlexIsHappy
Algorithms
Mathematics
Logic
Numbers
4 kyu
Validate Sudoku with size `NxN`
9,021cbmono
Arrays
Puzzles
Algorithms
Object-oriented Programming
5 kyu
Don't Drink the Water
2,517NateBrady23
Algorithms
Arrays
Sorting
Lists
7 kyu
Convert Integer to Binary
1,936DivyanshBatham
Binary
Fundamentals
6 kyu
Simple Substitution Cipher Helper
3,519jacobb
Ciphers
Security
Object-oriented Programming
Strings
Algorithms
7 kyu
Move all vowels
1,926davidNge
Strings
Fundamentals
5 kyu
Closest Neighbouring Points II
98raulbc777
Fundamentals
Algorithms
Mathematics
7 kyu
Strong password?
876mkelty
Regular Expressions
Fundamentals
6 kyu
Sort the columns of a csv-file
996user5036852
Strings
Arrays
Algorithms
Sorting
5 kyu
Basic Nico variation
1,106dcieslak
Ciphers
Strings
Fundamentals
6 kyu
Array reduction
210KenKamau
Algorithms
6 kyu
Remove the parentheses
6,505topping
Strings
Algorithms
Regular Expressions
Fundamentals
6 kyu
Name to Matrix
730Coder_38
Strings
Arrays
Algorithms
Matrix
6 kyu
Nested List Depth
1,381Nmistrata
Lists
Algorithms