index.md

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• |||clickbait||| Matrix Shift |||clickbait|||
• 1/n- Cycle
• 80's Kids #4: Legends of the Hidden Temple
• 80's Kids #7: She's a Small Wonder

A

• A + B == 123
• A disguised sequence (I)
• A floating-point system
• A Rule of Divisibility by 13
• A Simple Music Decoder
• Ackermann Function
• Add All
• Address Book by State
• Airport Arrivals/Departures - #2
• Alex & snooker: scores
• All Star Code Challenge #15
• Alphabet war - airstrike - letters massacre
• Alphabet wars - reinforces massacre
• Are they the "same"?
• Are we alternate?
• Arrange Matrix by Diagonals -- OMG
• Array combinations
• Array Cropper
• Array.diff
• Arrh, grabscrab!
• Ascend, Descend, Repeat?
• ASCII Fun #3: Puzzle Tiles

B

• B.A.D. Hashing
• Baby Magpies
• Backspaces in string
• Backwards Read Primes
• Ball Upwards
• Banker's Plan
• Basic Encryption
• Basic socket server
• Basics 08: Find next higher number with same Bits (1's)
• Becoming a Real spy
• Begin your day with a challenge, but an easy one.
• Bifid cipher
• Binaries
• Binary to Text (ASCII) Conversion
• Binding within the List Monad
• Bingo Card
• Bit Counting
• Bitcoin statistics
• Blocky Octahedrons
• Bonuses
• Bouncing Balls
• Bowling Pins
• Braking well
• bread sandwiches
• Break camelCase
• Brick pyramid
• Build a pile of Cubes
• Build Tower
• Button sequences
• Buying a car

C

• Calculate String Rotation
• Calculate the area of a regular n sides polygon inside a circle of radius r
• Calendar Week
• CamelCase Method
• CamelCase to underscore
• Can you win the codewar?
• Car Number Plate Calculator
• Card Games: Black Jack
• Cartesian neighbors distance
• Casino chips
• Cat Kata, Part 1
• Catalog
• Change case
• Change your Points of View
• Character with longest consecutive repetition
• Chaser's schedule
• Children and candies
• Chocolate problem
• Circularly Sorted Array
• Clocky Mc Clock-Face
• Code-breaking by Letter Frequency
• Coffee machine
• Collatz
• Color Choice
• Compare powers
• Connect the Dots
• Consecutive strings
• Consonant value
• Conversion between Kilobyte and KibiByte
• Convert integer to Whitespace format
• Convert ISBN-10 to ISBN-13
• Convert string to camel case
• Count a Spiral
• Count characters in your string
• Count the days!
• Count the divisible numbers
• Count the number of days between two dates
• Count the smiley faces!
• Counting Duplicates
• Crack the PIN
• Create Phone Number
• Cuckoo Clock
• Cure Cancer

D

• Dashatize it
• Data compression using run-length encoding
• Data Reverse
• Dead Ants
• Death by Coffee
• Decode the Morse code
• Decode the woofs!
• Delete occurrences of an element if it occurs more than n times
• Detect Pangram
• Determine the date by the day number
• Difference of 2
• Disease Spread
• Divisible Ints
• Does my number look big in this?
• Dude, my computer cannot count!
• Duplicate Encoder
• Duplicates. Duplicates Everywhere.

E

• Ease the StockBroker
• Easy Balance Checking
• Easy Diagonal
• Emotional Sort ( ︶︿︶)
• Encrypt this!
• English beggars
• Enigeliisohe too Eniigeeliiisoohee Toroanisoliatooro
• Equal Sides Of An Array
• Error correction #1 - Hamming Code
• Errors : histogram
• Esolang Interpreters #1 - Introduction to Esolangs and My First Interpreter (MiniStringFuck)
• Estimating Amounts of Subsets
• Even Fibonacci Sum
• Everybody hates Mondays
• Evil Autocorrect Prank
• Experimenting with a sequence of complex numbers
• Extract portion of file name

F

• Factors of triangle numbers
• Fat Fingers
• Feed Kahumolings!
• Feynman's square question
• Fibonacci Rabbits
• Fibonacci, Tribonacci and friends
• Figurate Numbers #1 - Pentagonal Number
• Financing Plan on Planet XY140Z-n
• Find last Fibonacci digit [hardcore version]
• Find Numbers with Same Amount of Divisors
• Find the First Number in Having a Certain Number of Divisors I
• Find the in-between point
• Find the missing letter
• Find the missing term in an Arithmetic Progression
• Find the odd int
• Find The Parity Outlier
• Find the unique number
• Find the X from Equation
• Finding Arrows in a String
• Finding Neo (PG-13)
• FIRE and FURY
• FIXME: Hello
• FLAMES Game version 1
• Floating-point Approximation (I)
• Floating-point Approximation (II)
• Fold an array
• Follow that Spy
• Format words into a sentence
• Fractions class
• Frog jumping
• Fruit Machine
• Fun with lists: countIf
• Fun with lists: filter
• Fun with lists: map
• Fun with lists: reduce
• Fun with trees: max sum
• Function iteration

G

• Get the Excel column title!
• Give me a Diamond
• Give your kata a name
• Good vs Evil
• Grill it!
• Guess the function
• Guess the number!

H

• Handshake problem
• Help the bookseller!
• Hex class
• Hidden "Cubic" numbers
• Highest Scoring Word
• How Many Numbers?
• How many pages in a book?
• How Much?
• HTML Complementary Color
• HTML dynamic color string generation

I

• If you can read this...
• Image host filename generator
• Integer depth
• Integers: Recreation Two
• Interval
• IntroToArt
• Irreducible Sum of Rationals
• Is a number prime?

J

• Java Code Golf: Large Factorials
• Java format Unicode encoder/decoder
• Jurassic Word

K

• Killer Garage Door

L

• L3375p34k
• Last Survivors Ep.2
• Length of missing array
• Loneliest character
• Longest alphabetical substring
• Longest palindrome
• Loose Change
• LOTTO 6 aus 49 - 6 of 49
• Lucas numbers
• Lucky Tickets

M

• Make A Window
• Make the Deadfish swim
• Matrix Addition
• Matrix Multiplier
• Maze Runner
• Meeting
• Merge in 2048
• Message Validator
• Mexican Wave
• Millipede of words
• Minutes to Midnight
• Missing Alphabet
• Moduli number system
• Modulus 11 - Check Digit
• More Zeros than Ones
• Most Frequent Weekdays
• Moves in squared strings (II)
• Moves in squared strings (III)
• Moves in squared strings (IV)
• Multi-tap Keypad Text Entry on an Old Mobile Phone
• Multiples of 3 or 5
• Multiplication table
• Mutual Recursion
• My friend time

N

• New Cashier Does Not Know About Space or Shift
• No one likes carrying change
• Node Mania
• Not prime numbers
• Number Zoo Patrol
• Numericals of a String
• Nut Farm

O

• Odd/Even number of divisors
• Overflowing with longing

P

• Padovan numbers
• Page replacement algorithms: LRU
• Pair of gloves
• Parabolic Arc Length
• Parse a linked list from a string
• Parse bank account number
• Parse HTML/CSS Colors
• Pascal's Triangle
• Pascal's Triangle #2
• Password Maker
• Paths in the Grid
• Peel the onion
• Pell Numbers
• Pentabonacci
• Persistent Bugger
• PhoneWords
• PI approximation
• Piano Kata, Part 1
• Piano Kata, Part 2
• Ping Pong
• Pipi Numbers!
• Pizza pieces
• Playing on a chessboard
• Playing with digits
• Playing with passphrases
• Playing With Toy Blocks ~ Can you build a 4x4 square?
• +1 Array
• Points in the circle
• Polybius square cipher - encode
• Positions Average
• Possibilities of throwing a coin n times
• Prime factorization
• Primorial Of a Number
• Print number with character
• Prize Draw
• Pure odd digits primes
• Pyramid Array

Q

• Quick (n choose k) calculator

R

• Rainfall
• Ranking NBA teams
• Reach Me and Sum my Digits
• Read the time
• Real Password Cracker
• Rectangle into Squares
• Reducing by steps
• Regex pattern to check if string has all characters
• Regex Tic Tac Toe Win Checker
• Remove a Specific Element of an Array
• Remove the parentheses
• Required Data I
• Return 1, 2, 3 randomly
• Reverse a singly-linked list
• Reverse or rotate?
• Reverse polish notation calculator
• Reversing a Process
• Reversing Euclid's GCD. Parameters out of results
• RoboScript #1 - Implement Syntax Highlighting
• Roman Numerals Encoder
• Rotate Array
• Rotate matrix counter - clockwise N - times!
• Round and Round
• Routes in a square grid
• Row of the odd triangle

S

• Salesman's Travel
• Same matrix (2 * 2)
• Separate The Wheat From The Chaff
• Sequence convergence
• Sequences and Series
• SHA-256
• SHA-256 Cracker
• Shorter Path
• Sieve of Eratosthenes
• Simple card game
• Simple Encryption #1 - Alternating Split
• Simple frequency sort
• Simple Fun #116: Prime String
• Simple Fun #122: String Constructing
• Simple Fun #135: Missing Alphabets
• Simple Fun #158: Not So Random
• Simple Fun #165: Withdraw
• Simple Fun #169: Press Button
• Simple Fun #170: Sum Groups
• Simple Fun #210: Maximize Points
• Simple Fun #301: Rope Skipping Game
• Simple Fun #319: Number And IP Address
• Simple Fun #52: Pair Of Shoes
• Simple max digit sum
• Simple missing sum
• Simple nearest prime
• Simple prime streaming
• Simple reversed parenthesis
• Simple ROT13.5 cypher
• Simple square numbers
• Simple string indices
• Simple sum of pairs
• Simple time difference
• Simpson's Rule - Approximate Integration
• Single character palindromes
• Single Word Pig Latin
• Snakes & Ladders
• Some Fun with Aggregate Operations (Part 1)
• Some Fun with Aggregate Operations (Part 2)
• Some Fun with Aggregate Operations (Part 3)
• Some Fun with Aggregate Operations (Part 4)
• Sort array by sorting its smallest sub-array
• Sort the columns of a csv-file
• Sort the odd
• Sort two arrays
• Sortable Shapes
• Sorting on planet Twisted-3-7
• Special Multiples
• Spelling Bee
• Spelling Bee II
• Split and then add both sides of an array together.
• Split Strings
• Squares in a Rectangle
• Srot the inner ctonnet in dsnnieedcg oredr
• Statistics for an Athletic Association
• Steps in Primes
• Stop gninnipS My sdroW!
• Street Fighter 2 - Character Selection
• String array duplicates
• String Pyramid
• String searching with wildcard
• String subpattern recognition I
• String subpattern recognition III
• Strongest even number in an interval
• Sudoku board validator
• Sum consecutives
• Sum of Digits / Digital Root
• Sum of prime-indexed elements
• Sum of Two Integers
• Sum the nums, sum the sums and sum the nums up to that sum
• Sums of Parts
• Surrounding Primes for a value

T

• T.T.T.51: Four warriors and a lamp
• Take a Number And Sum Its Digits Raised To The Consecutive Powers And ....¡Eureka!!
• Take a Ten Minutes Walk
• Tank Truck
• TDD Area Calculations
• Texting with an old-school mobile phone
• The BIG Pronic challenge
• The Deaf Rats of Hamelin
• The Deaf Rats of Hamelin (2D)
• The difference between 11 and 21 in Ping-Pong
• The Enigma Machine - Part 1: The Plugboard
• The latest clock
• The lost beginning
• The Modulo-3 Sequence
• The Office V - Find a Chair
• The PaperFold sequence
• The queen on the chessboard
• The Spider and the Fly (Jumping Spider)
• The Supermarket Queue
• The Walker
• Throw without throwing
• Tic-Tac-Toe-like table Generator
• Time Math
• Tortoise racing
• Traffic Lights - one car
• Transform To Prime
• Triangle number check
• Tribonacci Sequence
• Triple Sorting - Sort & Stringify a list by 3 attributes
• Triple trouble
• Trumpness detector
• TV Remote (shift and space)
• TV Remote (wrap)
• Two cube sums
• Two Sets of Equal Sum
• Two Sum

U

• Unique Substring From Joined Strings
• Unwanted dollars
• Up AND down
• Upside down numbers

V

• Valid Braces
• Valid Phone Number
• Validate Credit Card Number
• Vector Affinity
• Versions manager
• VIN Checker

W

• Wave Sorting
• We are the Robots d[(0)(0)]b
• What century is it?
• What's A Name In?
• What's Your Poison?
• What's your running pace?
• When greatest is less than smallest
• Where is my parent!?(cry)
• Which are in?
• Who likes it?
• Who won the election?
• Wind component calculation
• Word a10n (abbreviation)
• Word Segmentation: MaxMatch
• Word to initial number
• World Bits War
• Write Number in Expanded Form

Y

• You are a Robot: Translating a Path
• Your order, please

Z

• Zig-Zag Camel