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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
3,829PG1
Fundamentals
Arrays
7 kyu
KISS - Keep It Simple Stupid
2,156j_codez
Strings
Fundamentals
8 kyu
Basic Mathematical Operations
251,708Quickz
Mathematics
Fundamentals
8 kyu
Remove duplicates from list
42,272wichu
Fundamentals
Arrays
Lists
5 kyu
ROT13
31,463hvaara
Strings
Ciphers
Regular Expressions
Algorithms
6 kyu
Convert string to camel case
219,468jhoffner
Regular Expressions
Algorithms
Strings
7 kyu
Disagreeable ascii
926depperm
Strings
Fundamentals
6 kyu
If you can read this...
12,773henryhamon
Fundamentals
6 kyu
Moduli number system
2,159g964
Fundamentals
Mathematics
5 kyu
Land perimeter
5,439St3f4n
Fundamentals
7 kyu
String to list of integers.
1,252Nippius
Strings
Algorithms
6 kyu
Title Case
40,021user527539
Strings
Fundamentals
6 kyu
Your order, please
187,842iamstone
Strings
Fundamentals
6 kyu
Simple Encryption #1 - Alternating Split
30,967user5036852
Cryptography
Algorithms
Strings
Arrays
Fundamentals
7 kyu
Flatten
13,519xcthulhu
Functional Programming
Arrays
Fundamentals
6 kyu
Organise duplicate numbers in list
2,776dangerdak
Arrays
Sorting
Fundamentals
5 kyu
Maximum subarray sum
88,696knotman90
Algorithms
Lists
Dynamic Programming
Fundamentals
Performance
6 kyu
Detect Pangram
211,083anindyabd
Strings
Data Structures
Fundamentals
7 kyu
Hit Count
4,032glenoakes
Arrays
Fundamentals
6 kyu
Bracket Buster
261EricDalrymple91
Regular Expressions
Fundamentals
5 kyu
RGB To Hex Conversion
148,306jhoffner
Algorithms
6 kyu
Rectangle into Squares
35,020g964
Fundamentals
Geometry
Puzzles
5 kyu
int32 to IPv4
30,059sahglie
Networks
Bits
Algorithms
Retired
Double Cola (retired)
14,993AlexIsHappy
Algorithms
Mathematics
Logic
Numbers
4 kyu
Validate Sudoku with size `NxN`
10,358cbmono
Arrays
Puzzles
Algorithms
Object-oriented Programming
5 kyu
Don't Drink the Water
3,087NateBrady23
Algorithms
Arrays
Sorting
Lists
7 kyu
Convert Integer to Binary
2,101DivyanshBatham
Binary
Fundamentals
6 kyu
Simple Substitution Cipher Helper
4,243jacobb
Ciphers
Security
Object-oriented Programming
Strings
Algorithms
7 kyu
Move all vowels
2,265davidNge
Strings
Fundamentals
5 kyu
Closest Neighbouring Points II
109raulbc777
Fundamentals
Algorithms
Mathematics
Retired
Strong password? (retired)
1,000mkelty
Regular Expressions
Fundamentals
6 kyu
Sort the columns of a csv-file
1,108user5036852
Strings
Arrays
Algorithms
Sorting
5 kyu
Basic Nico variation
1,204dcieslak
Ciphers
Strings
Fundamentals
6 kyu
Array reduction
223KenKamau
Algorithms
6 kyu
Remove the parentheses
7,611topping
Strings
Algorithms
Regular Expressions
Fundamentals
6 kyu
Name to Matrix
1,304Coder_38
Strings
Arrays
Algorithms
Matrix
6 kyu
Nested List Depth
1,484Nmistrata
Lists
Algorithms