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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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3 kyu
Minimal Cost Binary Search Trees
84ecolban
Algorithms
Binary Search Trees
Fundamentals
Beta
Kolakoski Sequence
9haxifix
Status:Testing & feedback needed
Estimated Rank:
3 kyu
Algorithms
Beta
Arithmetic function plotter
11ivosdc
Status:Testing & feedback needed
Estimated Rank:
6 kyu
Arrays
Strings
ASCII Art
Fundamentals
Beta
Promenade Fractions 2 – converting both ways
10Daniel Ray
Status:Waiting for issues to be resolved
Estimated Rank:
6 kyu
Algorithms
Performance
4 kyu
Product-Sum Numbers
85mertcanekiz
Mathematics
Algorithms
4 kyu
Ranking Poker Hands
3,344FrankK
Games
Algorithms
Object-oriented Programming
4 kyu
Sortable Poker Hands
469FrankK
Games
Fundamentals
Sorting
Design Patterns
Algorithms
5 kyu
Singleton Adam & Eve
396FrankK
Design Patterns
Singleton
Fundamentals
4 kyu
A simple Tic-tac-toe class
351Cito
Games
Puzzles
Object-oriented Programming
Beta
Sparkle Interpreter
13Mihail-K
Status:Waiting for issues to be resolved
Estimated Rank:
1 kyu
Parsing
Interpreters
Strings
Mathematics
Algorithms
Beta
Dobble
20zellerede
Status:Waiting for issues to be resolved
Estimated Rank:
3 kyu
Games
Combinatorics
Mathematics
Puzzles
Beta
Simulating Collective Behaviour with Linear Threshold Model
35AlexandraBaier
Status:Waiting for issues to be resolved
Algorithms
Graph Theory
Beta
Detecting Factions in Friend-Foe Networks
22AlexandraBaier
Status:Waiting for issues to be resolved
Estimated Rank:
5 kyu
Graph Theory
Algorithms
Data Structures
6 kyu
Golden Section Search
47ecolban
Fundamentals
5 kyu
Compression : impossible
106PaulBlanche
Mathematics
Puzzles
4 kyu
Organize a Round-robin tournament
780rubs33
Arrays
Logic
Algorithms
4 kyu
Connect Four: Who Won?
1,227jnicol
Games
Arrays
Matrix
Algorithms
5 kyu
All that is open must be closed...
1,476ChristianECooper
Stacks
Parsing
Algorithms
Regular Expressions
4 kyu
Pick Until Match
30davilla
Algorithms
Probability
Combinatorics
3 kyu
Find the cheapest path
586FArekkusu
Algorithms
Performance
6 kyu
Find the Lowest Common Ancestor
124dfhwze
Trees
Algorithms
Graphs
Graph Theory
Data Structures
6 kyu
Activate a Node in a Tree
25dfhwze
Trees
Algorithms
Graphs
Graph Theory
Data Structures
Recursion
6 kyu
Pareto front
98dogfew
Algorithms
Mathematics
Matrix
Tutorials