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Ad
3 kyu
Alphabetic Anagrams
5,871Azuaron
Mathematics
Logic
Strings
Algorithms
4 kyu
Sum by Factors
18,387g964
Arrays
Algorithms
Mathematics
4 kyu
Hamming Numbers
10,949xcthulhu
Number Theory
Algorithms
6 kyu
Reverse polish notation calculator
10,922vgrichina
Algorithms
Mathematics
Interpreters
Parsing
Strings
5 kyu
Integers: Recreation One
25,129g964
Fundamentals
Algorithms
6 kyu
Statistics for an Athletic Association
9,860g964
Fundamentals
Strings
Statistics
Mathematics
Data Science
5 kyu
Rule 30
754MircoT
Lists
Arrays
Binary
Puzzles
6 kyu
String Pyramid
689user5036852
Mathematics
Strings
Algorithms
ASCII Art
6 kyu
Bit Counting
229,103xcthulhu
Bits
Algorithms
6 kyu
Give me a Diamond
34,417jayeshcp
Strings
ASCII Art
Fundamentals
6 kyu
Create Phone Number
313,302xDranik
Arrays
Strings
Regular Expressions
Algorithms
5 kyu
Simple Encryption #4 - Qwerty
654user5036852
Cryptography
Security
Strings
Algorithms
6 kyu
Simple Encryption #1 - Alternating Split
27,371user5036852
Cryptography
Algorithms
Strings
Arrays
Fundamentals
5 kyu
Linked Lists - Alternating Split
1,472JDeBolt
Data Structures
Linked Lists
Fundamentals
5 kyu
Simple Encryption #2 - Index-Difference
802user5036852
Fundamentals
Cryptography
Security
Strings
Arrays
Algorithms
6 kyu
Street Fighter 2 - Character Selection
11,422mmalkavian
Arrays
Lists
Fundamentals
Graph Theory
1 kyu
Puzzle Fighter
169docgunthrop
Games
Logic
Game Solvers
Algorithms
4 kyu
Area of House from Path of Mouse
136docgunthrop
Strings
Puzzles
Algorithms
5 kyu
Ziggurat Ride of Fortune
233docgunthrop
Arrays
Performance
Algorithms
3 kyu
Sudoku Solver
12,660pineappleclock
Games
Game Solvers
Algorithms
3 kyu
Bloxorz Solver
410docgunthrop
Games
Puzzles
Game Solvers
Algorithms
2 kyu
Hard Sudoku Solver
815f.rodrigues
Games
Algorithms
Game Solvers
Puzzles
3 kyu
Hard Sudoku Solver
970Marx314
Algorithms
Games
Puzzles
Game Solvers
6 kyu
IP Validation
39,154wink
Regular Expressions
Algorithms
4 kyu
Insane Increasing or Decreasing Numbers
116Bubbler
Algorithms
Mathematics
Puzzles
Performance
2 kyu
Full Metal Chemist #1: build me...
330Blind4Basics
Object-oriented Programming
Fundamentals
3 kyu
Stargate SG-1: Cute and Fuzzy (Improved version)
534Blind4Basics
Algorithms
Data Structures
Graph Theory
6 kyu
Pizza pieces
2,156Yabiten
Mathematics
Algorithms
4 kyu
Human readable duration format
77,470davazp
Strings
Date Time
Algorithms
3 kyu
The builder of things
961jhoffner
Metaprogramming
Domain Specific Languages
Algorithms
Language Features
3 kyu
N-Parasitic Numbers Ending in N
875LesRamer
Algorithms
Mathematics
Puzzles
4 kyu
Magnet particules in boxes
7,442g964
Mathematics
Matrix
Algorithms
4 kyu
Pyramid Slide Down
17,121rodentrabies
Algorithms
Dynamic Programming
5 kyu
Can you get the loop ?
27,346Devouring
Algorithms
Linked Lists
Performance
4 kyu
Can you really count divisors?
445kabaczek83
Algorithms
Mathematics
5 kyu
Morse Encoding
1,220constablebrew
Bits
Strings
Binary
Parsing
Algorithms
6 kyu
Keyword Cipher Helper
794jacobb
Cryptography
Ciphers
Security
Object-oriented Programming
Strings
4 kyu
Vigenère Cipher Helper
7,798jacobb
Algorithms
Ciphers
Security
Object-oriented Programming
Strings
5 kyu
Caesar Cipher Helper
4,218eugene-bulkin
Ciphers
Object-oriented Programming
Strings
Algorithms
5 kyu
Vigenère Autokey Cipher Helper
1,205jacobb
Algorithms
Ciphers
Security
Object-oriented Programming
Strings
4 kyu
Escape the maze
778cyril-lemaire
Fundamentals
Algorithms
Retired
Escape the Mines ! (retired)
2,510damned3
Data Structures
Algorithms
Puzzles
Graph Theory
7 kyu
List Filtering
263,792cmgerber
Lists
Filtering
Data Structures
Fundamentals
6 kyu
CamelCase Method
43,176bestwebua
Fundamentals
Algorithms
Strings
7 kyu
Find the middle element
32,739myTerminal
Arrays
Fundamentals
6 kyu
Write Number in Expanded Form - Part 2
1,861Belax8
Mathematics
Algorithms
Fundamentals
4 kyu
String -> X-Iterations -> String
291Jomopipi
Algorithms
Puzzles
Mathematics
Language Features
3 kyu
Rail Fence Cipher: Encoding and Decoding
8,031darrentburgess
Algorithms
Ciphers
Cryptography
Strings
Security
4 kyu
Mystery Function
1,914ecolban
Fundamentals
4 kyu
Count ones in a segment
2,918d0n14
Binary
Performance
Algorithms
4 kyu
Mahjong - #1 Pure Hand
188Hacker Sakana
Games
Logic
Algorithms
4 kyu
Codewars style ranking system
15,891jhoffner
Algorithms
Object-oriented Programming
Retired
Calculator (retired)
11,547obrok
Algorithms
Parsing
Logic
Strings
Expressions
Basic Language Features
Fundamentals
4 kyu
Breadcrumb Generator
4,409GiacomoSorbi
Parsing
Regular Expressions
Algorithms
6 kyu
Progressive Spiral Number Distance
156GiacomoSorbi
Mathematics
Number Theory
Fundamentals
6 kyu
String subpattern recognition I
1,513GiacomoSorbi
Strings
Regular Expressions
Fundamentals
6 kyu
String subpattern recognition III
295GiacomoSorbi
Strings
Regular Expressions
Fundamentals
6 kyu
String subpattern recognition II
340GiacomoSorbi
Strings
Regular Expressions
Fundamentals
6 kyu
N smallest elements in original order
2,490GiacomoSorbi
Arrays
Lists
Data Structures
Algorithms
6 kyu
Pyramid Array
17,410sahglie
Algorithms
6 kyu
Numericals of a String
3,257Jomopipi
Puzzles
Performance
Algorithms
5 kyu
RPG dice roller
264ankr
Regular Expressions
Arrays
Algorithms
5 kyu
Phone Directory
6,537g964
Fundamentals
Strings
6 kyu
Two Joggers
8,827haan
Mathematics
Algorithms
5 kyu
PaginationHelper
37,615jhoffner
Object-oriented Programming
Arrays
Algorithms
3 kyu
The Lift
3,124dinglemouse
Algorithms
Queues
Data Structures
2 kyu
Blaine is a pain
460dinglemouse
Fundamentals
4 kyu
How many numbers III?
3,736raulbc777
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
6 kyu
Pascal's Triangle
11,359boatmeme
Arrays
Mathematics
Algorithms
5 kyu
Greed is Good
50,613JulianNicholls
Algorithms
4 kyu
Strings Mix
22,208g964
Fundamentals
Strings
2 kyu
Parsing and evaluation of mathematical expressions
162smile67
Algorithms
Data Structures
Parsing
Interpreters
Mathematics
2 kyu
Evaluate mathematical expression
9,008ankr
Mathematics
Parsing
Algorithms
5 kyu
Regex Password Validation
27,087EricFreeman
Regular Expressions
Fundamentals
5 kyu
Regex for Gregorian date validation
266kolichj
Strings
Regular Expressions
Fundamentals
3 kyu
Papers, Please
734docgunthrop
Object-oriented Programming
Games
Regular Expressions
Fundamentals
6 kyu
Count characters in your string
85,876riston
Strings
Fundamentals
6 kyu
Highest Scoring Word
92,055PG1
Fundamentals
Strings
Arrays
5 kyu
Sum of Pairs
24,696AlejandorLazaro
Memoization
Fundamentals
Performance
Retired
Vasya - Clerk (retired)
54,207AlexIsHappy
Fundamentals
Mathematics
Algorithms
Logic
Numbers
Games
5 kyu
Best travel
19,808g964
Fundamentals