Category:Factor

1

• 100 doors

2

• 24 game

9

• 99 Bottles of Beer

A

• A+B
• Accumulator factory
• Ackermann function
• Active object
• Align columns
• Amb
• Anagrams
• Anagrams/Deranged anagrams
• Animate a pendulum
• Animation
• Anonymous recursion
• Apply a callback to an array
• Arbitrary-precision integers (included)
• Arithmetic evaluation
• Arithmetic/Complex
• Arithmetic/Integer
• Array concatenation
• Arrays
• Assertions
• Associative array/Creation
• Associative array/Iteration
• Averages/Arithmetic mean
• Averages/Median
• Averages/Mode
• Averages/Pythagorean means
• Averages/Root mean square

B

• Balanced brackets
• Binary digits
• Binary search
• Binary strings
• Bitmap
• Bitmap/Bresenham's line algorithm
• Bitmap/Bézier curves/Cubic
• Bitmap/Bézier curves/Quadratic
• Bitwise operations
• Boolean values
• Break OO privacy
• Bulls and cows

C

• Call a foreign-language function
• Catalan numbers
• Character codes
• Check that file exists
• Classes
• Closures/Value capture
• Combinations
• Command-line arguments
• Comments
• Compile-time calculation
• Compound data type
• Concurrent computing
• Conditional structures
• Conjugate transpose
• Continued fraction
• Copy a string
• Count the coins
• CRC-32
• Create a file
• Create a two-dimensional array at runtime

D

• Date format
• Day of the week
• Delete a file
• Detect division by zero
• Determine if a string is numeric
• Dinesman's multiple-dwelling problem
• Documentation
• Dot product
• Dragon curve

E

• Echo server
• Empty program
• Environment variables
• Equilibrium index
• Ethiopian multiplication
• Even or odd
• Exceptions
• Executable library
• Execute a system command
• Exponentiation operator
• Extend your language

F

• Factorial
• Factors of an integer
• Fast Fourier transform
• Fibonacci sequence
• File IO
• File modification time
• File size

F cont.

• Filter
• Find common directory path
• First-class functions
• First-class functions/Use numbers analogously
• FizzBuzz
• Flatten a list
• Fork
• Forward difference
• Function composition
• Function definition

G

• Generic swap
• Gray code
• Greatest common divisor
• Greatest element of a list
• Greatest subsequential sum
• Guess the number/With feedback

H

• Hailstone sequence
• Hamming numbers
• Happy numbers
• Hash from two arrays
• Haversine formula
• Hello world/Graphical
• Hello world/Line printer
• Hello world/Newline omission
• Hello world/Standard error
• Hello world/Text
• Higher-order functions
• Hofstadter Figure-Figure sequences
• Hofstadter Q sequence
• Horner's rule for polynomial evaluation
• Host introspection
• Hostname
• HTTP

I

• Identity matrix
• Image noise
• Increment a numerical string
• Infinity
• Inheritance/Single
• Input loop
• Integer comparison
• Integer sequence
• Interactive programming
• Introspection
• Inverted index

J

• Josephus problem
• JSON

K

• Knapsack problem/0-1
• Knapsack problem/Unbounded
• Knuth shuffle

L

• Leap year
• Least common multiple
• Logical operations
• Long multiplication
• Look-and-say sequence
• Loop over multiple arrays simultaneously
• Loops/Break
• Loops/Continue
• Loops/Do-while
• Loops/Downward for
• Loops/For
• Loops/For with a specified step
• Loops/Foreach
• Loops/Infinite
• Loops/N plus one half
• Loops/While
• Luhn test of credit card numbers

M

• Map range
• Matrix multiplication
• Matrix transposition
• Matrix-exponentiation operator
• MD5
• Memory allocation
• Menu
• Monte Carlo methods
• Mouse position
• Multiline shebang
• Multiple distinct objects
• Multiplication tables
• Mutual recursion

N

• N-queens problem
• Non-decimal radices/Convert
• Non-decimal radices/Input
• Non-decimal radices/Output
• Null object
• Number reversal game
• Numerical integration

O

• Odd word problem
• One of n lines in a file

O cont.

• One-dimensional cellular automata
• OpenGL
• Order two numerical lists
• Ordered words

P

• Palindrome detection
• Pangram checker
• Pascal's triangle
• Perfect numbers
• Permutations
• Pick random element
• Polymorphic copy
• Polymorphism
• Power set
• Primality by trial division
• Prime decomposition
• Priority queue
• Probabilistic choice
• Program name
• Pythagorean triples

Q

• Quine

R

• Random number generator (included)
• Random numbers
• Ray-casting algorithm
• Read a file line by line
• Read entire file
• Real constants and functions
• Remove duplicate elements
• Rename a file
• Repeat a string
• Return multiple values
• Reverse a string
• Roman numerals/Encode
• Roots of a quadratic function
• Rot-13

S

• Scripted main
• Search a list
• Send email
• Set
• SHA-1
• Shell one-liner
• Show the epoch
• Sierpinski triangle
• Singleton
• Singly-linked list/Element definition
• Singly-linked list/Element insertion
• Singly-linked list/Traversal
• Sleep
• Sockets
• Sort an array of composite structures
• Sort an integer array
• Sort stability
• Sort using a custom comparator
• Sorting algorithms/Bead sort
• Sorting algorithms/Bogosort
• Sorting algorithms/Bubble sort
• Sorting algorithms/Merge sort
• Sorting algorithms/Quicksort
• Stack
• Standard deviation
• String case
• String concatenation
• String interpolation (included)
• String length
• Strip whitespace from a string/Top and tail
• Substring
• Sum and product of an array
• Sum of a series
• Sum of squares
• Symmetric difference
• System time

T

• Take notes on the command line
• Ternary logic
• Test a function
• Text processing/Max licenses in use
• Time a function
• Tokenize a string
• Top rank per group
• Towers of Hanoi
• Tree traversal

U

• User input/Text

V

• Variables

W

• Walk a directory/Non-recursively
• Walk a directory/Recursively
• Web scraping
• Window creation

X

• XML/Input
• XML/Output

Y

• Y combinator