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3 kyu
Alphabetic Anagrams
6,365Azuaron
Mathematics
Logic
Strings
Algorithms
4 kyu
Sum by Factors
19,429g964
Arrays
Algorithms
Mathematics
4 kyu
Hamming Numbers
11,964xcthulhu
Number Theory
Algorithms
6 kyu
Reverse polish notation calculator
11,408vgrichina
Algorithms
Mathematics
Interpreters
Parsing
Strings
5 kyu
Integers: Recreation One
26,483g964
Fundamentals
Algorithms
6 kyu
Statistics for an Athletic Association
10,581g964
Fundamentals
Strings
Statistics
Mathematics
Data Science
5 kyu
Rule 30
821MircoT
Lists
Arrays
Binary
Puzzles
5 kyu
John and Ann sign up for Codewars
3,875g964
Mathematics
Algorithms
6 kyu
String Pyramid
707user5036852
Mathematics
Strings
Algorithms
ASCII Art
6 kyu
Bit Counting
245,474xcthulhu
Bits
Algorithms
6 kyu
Give me a Diamond
37,005jayeshcp
Strings
ASCII Art
Fundamentals
6 kyu
Create Phone Number
337,229xDranik
Arrays
Strings
Regular Expressions
Algorithms
5 kyu
Simple Encryption #4 - Qwerty
774user5036852
Cryptography
Security
Strings
Algorithms
6 kyu
Simple Encryption #1 - Alternating Split
28,944user5036852
Cryptography
Algorithms
Strings
Arrays
Fundamentals
5 kyu
Linked Lists - Alternating Split
1,539JDeBolt
Data Structures
Linked Lists
Fundamentals
5 kyu
Simple Encryption #2 - Index-Difference
847user5036852
Fundamentals
Cryptography
Security
Strings
Arrays
Algorithms
6 kyu
Street Fighter 2 - Character Selection
11,897mmalkavian
Arrays
Lists
Fundamentals
Graph Theory
1 kyu
Puzzle Fighter
174docgunthrop
Games
Logic
Game Solvers
Algorithms
4 kyu
Area of House from Path of Mouse
139docgunthrop
Strings
Puzzles
Algorithms
5 kyu
Ziggurat Ride of Fortune
238docgunthrop
Arrays
Performance
Algorithms
5 kyu
Street Fighter 2 - Character Selection - Part 2
1,997mmalkavian
Arrays
Lists
Fundamentals
Graph Theory
3 kyu
Sudoku Solver
14,390pineappleclock
Games
Game Solvers
Algorithms
3 kyu
Bloxorz Solver
432docgunthrop
Games
Puzzles
Game Solvers
Algorithms
2 kyu
Hard Sudoku Solver
866f.rodrigues
Games
Algorithms
Game Solvers
Puzzles
3 kyu
Hard Sudoku Solver
1,038Marx314
Algorithms
Games
Puzzles
Game Solvers
6 kyu
IP Validation
42,267wink
Regular Expressions
Algorithms
4 kyu
Insane Increasing or Decreasing Numbers
128Bubbler
Algorithms
Mathematics
Puzzles
Performance
2 kyu
Full Metal Chemist #1: build me...
352Blind4Basics
Object-oriented Programming
Fundamentals
3 kyu
Stargate SG-1: Cute and Fuzzy (Improved version)
588Blind4Basics
Algorithms
Data Structures
Graph Theory
6 kyu
Pizza pieces
2,222Yabiten
Mathematics
Algorithms
4 kyu
Human readable duration format
83,650davazp
Strings
Date Time
Algorithms
3 kyu
The builder of things
1,011jhoffner
Metaprogramming
Domain Specific Languages
Algorithms
Language Features
3 kyu
N-Parasitic Numbers Ending in N
923LesRamer
Algorithms
Mathematics
Puzzles
4 kyu
Magnet particules in boxes
7,684g964
Mathematics
Matrix
Algorithms
4 kyu
Pyramid Slide Down
18,380rodentrabies
Algorithms
Dynamic Programming
5 kyu
Can you get the loop ?
28,706Devouring
Algorithms
Linked Lists
Performance
4 kyu
Can you really count divisors?
495kabaczek83
Algorithms
Mathematics
5 kyu
Morse Encoding
1,230constablebrew
Bits
Strings
Binary
Parsing
Algorithms
6 kyu
Keyword Cipher Helper
934jacobb
Cryptography
Ciphers
Security
Object-oriented Programming
Strings
4 kyu
Vigenère Cipher Helper
8,432jacobb
Algorithms
Ciphers
Security
Object-oriented Programming
Strings
5 kyu
Caesar Cipher Helper
4,967eugene-bulkin
Ciphers
Object-oriented Programming
Strings
Algorithms
5 kyu
Vigenère Autokey Cipher Helper
1,219jacobb
Algorithms
Ciphers
Security
Object-oriented Programming
Strings
4 kyu
Escape the maze
895cyril-lemaire
Fundamentals
Algorithms
Retired
Escape the Mines ! (retired)
2,510damned3
Data Structures
Algorithms
Puzzles
Graph Theory
7 kyu
Form The Minimum
28,003MrZizoScream
Fundamentals
7 kyu
List Filtering
288,504cmgerber
Lists
Filtering
Data Structures
Fundamentals
6 kyu
CamelCase Method
46,083bestwebua
Fundamentals
Algorithms
Strings
7 kyu
Find the middle element
35,977myTerminal
Arrays
Fundamentals
6 kyu
Write Number in Expanded Form - Part 2
2,039Belax8
Mathematics
Algorithms
Fundamentals
4 kyu
String -> X-Iterations -> String
325Jomopipi
Algorithms
Puzzles
Mathematics
Language Features
3 kyu
Rail Fence Cipher: Encoding and Decoding
8,738darrentburgess
Algorithms
Ciphers
Cryptography
Strings
Security
4 kyu
Mystery Function
2,178ecolban
Fundamentals
4 kyu
Count ones in a segment
3,175d0n14
Binary
Performance
Algorithms
4 kyu
Mahjong - #1 Pure Hand
196Hacker Sakana
Games
Logic
Algorithms
4 kyu
Codewars style ranking system
17,284jhoffner
Algorithms
Object-oriented Programming
Retired
Calculator (retired)
11,547obrok
Algorithms
Parsing
Logic
Strings
Expressions
Basic Language Features
Fundamentals
4 kyu
Breadcrumb Generator
4,628GiacomoSorbi
Parsing
Regular Expressions
Algorithms
6 kyu
Progressive Spiral Number Distance
222GiacomoSorbi
Mathematics
Number Theory
Fundamentals
6 kyu
String subpattern recognition I
1,696GiacomoSorbi
Strings
Regular Expressions
Fundamentals
6 kyu
String subpattern recognition III
322GiacomoSorbi
Strings
Regular Expressions
Fundamentals
6 kyu
String subpattern recognition II
441GiacomoSorbi
Strings
Regular Expressions
Fundamentals
5 kyu
Count IP Addresses
29,013xDranik
Algorithms
6 kyu
N smallest elements in original order
2,966GiacomoSorbi
Arrays
Lists
Data Structures
Algorithms
6 kyu
Pyramid Array
18,829sahglie
Algorithms
6 kyu
Numericals of a String
3,559Jomopipi
Puzzles
Performance
Algorithms
5 kyu
RPG dice roller
287ankr
Regular Expressions
Arrays
Algorithms
5 kyu
Phone Directory
6,821g964
Fundamentals
Strings
6 kyu
Two Joggers
8,968haan
Mathematics
Algorithms
5 kyu
PaginationHelper
40,592jhoffner
Object-oriented Programming
Arrays
Algorithms
3 kyu
The Lift
3,385dinglemouse
Algorithms
Queues
Data Structures
2 kyu
Blaine is a pain
480dinglemouse
Fundamentals
4 kyu
How many numbers III?
4,125raulbc777
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
6 kyu
Pascal's Triangle
11,609boatmeme
Arrays
Mathematics
Algorithms
5 kyu
Greed is Good
57,915JulianNicholls
Algorithms
4 kyu
Strings Mix
23,437g964
Fundamentals
Strings
2 kyu
Parsing and evaluation of mathematical expressions
174smile67
Algorithms
Data Structures
Parsing
Interpreters
Mathematics
2 kyu
Evaluate mathematical expression
9,609ankr
Mathematics
Parsing
Algorithms
5 kyu
Regex Password Validation
28,745EricFreeman
Regular Expressions
Fundamentals
5 kyu
Regex for Gregorian date validation
277kolichj
Strings
Regular Expressions
Fundamentals
3 kyu
Papers, Please
781docgunthrop
Object-oriented Programming
Games
Regular Expressions
Fundamentals
6 kyu
Count characters in your string
97,225riston
Strings
Fundamentals
6 kyu
Highest Scoring Word
101,379PG1
Fundamentals
Strings
Arrays
5 kyu
Sum of Pairs
26,438AlejandorLazaro
Memoization
Fundamentals
Performance
Retired
Vasya - Clerk (retired)
54,207AlexIsHappy
Fundamentals
Mathematics
Algorithms
Logic
Numbers
Games
5 kyu
Best travel
20,818g964
Fundamentals