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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
Unique In Order
184,151pinelopi
Algorithms
Fundamentals
6 kyu
The Supermarket Queue
51,466mattlub
Arrays
Fundamentals
6 kyu
Build Tower
100,6968fdafs2
Strings
ASCII Art
Fundamentals
7 kyu
Find the divisors!
87,395kwy95
Mathematics
Algorithms
6 kyu
Is a number prime?
112,122arithmetric
Mathematics
Algorithms
5 kyu
Memoized Fibonacci
23,088edalorzo
Memoization
Refactoring
6 kyu
Simple Encryption #1 - Alternating Split
28,503user5036852
Cryptography
Algorithms
Strings
Arrays
Fundamentals
6 kyu
Fold an array
11,033user5036852
Fundamentals
Logic
Mathematics
Algorithms
6 kyu
Detect Pangram
182,406anindyabd
Strings
Data Structures
Fundamentals
6 kyu
Sort the odd
107,881fyvfyv
Fundamentals
Arrays
Sorting
6 kyu
Triangle type
8,667SagePtr
Geometry
Mathematics
Algorithms
5 kyu
Sum of Pairs
26,096AlejandorLazaro
Memoization
Fundamentals
Performance
7 kyu
Bubble Sort
872PrivateShorty
Sorting
Arrays
Fundamentals
Algorithms
Retired
Subsequences (retired)
57taingmeng1
Strings
Algorithms
6 kyu
Sorting by bits
9,244kodejuice
Logic
Arrays
Algorithms
Data Structures
Fundamentals
Bits
Binary
Sorting
5 kyu
Binary search tree validation
950plastic
Trees
Recursion
Data Structures
Algorithms
6 kyu
Longest Word in Dictionary
151kodejuice
Strings
Algorithms
Data Structures
6 kyu
Factorial length
891KenKamau
Algorithms
5 kyu
Array.diff hero
704Iprit
Arrays
Fundamentals
4 kyu
Matrix Determinant
22,898pjfranzini
Matrix
Linear Algebra
Mathematics
Recursion
Algorithms
4 kyu
Binary Search Tree using Arrays
117surtich
Algorithms
Arrays
Mathematics
Sorting
4 kyu
Functional Binary Trees
565nklein
Functional Programming
Binary Trees
Algorithms
4 kyu
So Many Permutations!
47,322BattleRattle
Permutations
Strings
Algorithms
6 kyu
Basic Bitmapping
486spcbrn
Bits
Arrays
Sets
Lists
Algorithms
Recursion
4 kyu
Algebraic Lists
1,929edalorzo
Lists
Algebra
Algorithms
6 kyu
Convert string to camel case
191,722jhoffner
Regular Expressions
Algorithms
Strings
6 kyu
Steps in Primes
6,622g964
Mathematics
Number Theory
6 kyu
Multiples of 3 or 5
423,931jhoffner
Mathematics
Algorithms