Rosetta Code/Count examples/Full list

Full output for the Rosetta Code/Count examples#Raku task. Updated periodically.

This is something of a experiment. The languages have their completed task entries marked with a circled digit in the table so you can sort on the language to see which tasks have been done. Hold down control and click on several columns to do secondary, tertiary, etc. sorts.

Languages that omit a certain task have an uppercase O filled in for that task.

Ideally it would be nice to be able to generate the table on demand for any language but it is fairly intensive to generate. Once a week is ok, on demand would be unsustainable.

More than about 10 languages per page gets unwieldy and difficult to navigate. Generate reports for the top N languages in groups of 10. (N == 40 for now.)

See Rosetta_Code/Rank_languages_by_popularity/Full_list for a full language/task completion table.

Top tier

Second tier

Third tier

Fourth tier

First ten programming languages by number of task examples completed:
    ① Phix          ② Wren          ③ Julia         ④ Raku          ⑤ Nim          
    ⑥ Go            ⑦ Perl          ⑧ Python        ⑨ J             ⑩ Java         

As of 2023-10-22T22:36:59Z :: Tasks: 1260 :: Draft Tasks:397 :: Total Tasks: 1657 :: Total Examples: 0

Count	Task	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
0	100 doors
0	100 prisoners
0	10001th prime
0	15 puzzle game
0	15 puzzle game in 3D
0	15 puzzle solver
0	16 puzzle game
0	2048
0	21 game
0	24 game
0	24 game/Solve
0	3d turtle graphics
0	4-rings or 4-squares puzzle
0	9 billion names of God the integer
0	99 bottles of beer
0	A* search algorithm
0	A+B
0	ABC problem
0	ABC words
0	ADFGVX cipher
0	AKS test for primes
0	ASCII art diagram converter
0	ASCII control characters
0	AVL tree
0	Abbreviations, automatic
0	Abbreviations, easy
0	Abbreviations, simple
0	Abelian sandpile model
0	Abelian sandpile model/Identity
0	Abstract type
0	Abundant odd numbers
0	Abundant, deficient and perfect number classifications
0	Accumulator factory
0	Achilles numbers
0	Ackermann function
0	Active Directory/Connect
0	Active Directory/Search for a user
0	Active object
0	Add a variable to a class instance at runtime
0	Addition chains
0	Addition-chain exponentiation
0	Additive primes
0	Address of a variable
0	Air mass
0	Algebraic data types
0	Align columns
0	Aliquot sequence classifications
0	Almkvist-Giullera formula for pi
0	Almost prime
0	Alternade words
0	Amb
0	Amicable pairs
0	Anadromes
0	Anagram generator
0	Anagrams
0	Anagrams/Deranged anagrams
0	Anaprimes
0	Angle difference between two bearings
0	Angles (geometric), normalization and conversion
0	Animate a pendulum
0	Animation
0	Anonymous recursion
0	Anti-primes
0	Append a record to the end of a text file
0	Append numbers at same position in strings
0	Apply a callback to an array
0	Apply a digital filter (direct form II transposed)
0	Approximate equality
0	Apéry's constant
0	Arbitrary-precision integers (included)
0	Archimedean spiral
0	Arena storage pool
0	Arithmetic coding/As a generalized change of radix
0	Arithmetic derivative
0	Arithmetic evaluation
0	Arithmetic numbers
0	Arithmetic-geometric mean
0	Arithmetic-geometric mean/Calculate Pi
0	Arithmetic/Complex
0	Arithmetic/Integer
0	Arithmetic/Rational
0	Array concatenation
0	Array length
0	Arrays
0	Ascending primes
0	Aspect oriented programming
0	Assertions
0	Assertions in design by contract
0	Associative array/Creation
0	Associative array/Iteration
0	Associative array/Merging
0	Atomic updates
0	Attractive numbers
0	Audio alarm
0	Audio frequency generator
0	Audio overlap loop
0	Autogram checker
0	Average loop length
0	Averages/Arithmetic mean
0	Averages/Mean angle
0	Averages/Mean time of day
0	Averages/Median
0	Averages/Mode
0	Averages/Pythagorean means
0	Averages/Root mean square
0	Averages/Simple moving average
0	B-spline
0	Babbage problem
0	Babylonian spiral
0	Bacon cipher
0	Balanced brackets
0	Balanced ternary
0	Banker's algorithm
0	Barnsley fern
0	Base 16 numbers needing a to f
0	Base58Check encoding
0	Base64 decode data
0	Base64 encode data
0	Bell numbers
0	Benford's law
0	Bernoulli numbers
0	Bernstein basis polynomials
0	Best shuffle
0	Bifid cipher
0	Bilinear interpolation
0	Bin given limits
0	Binary coded decimal
0	Binary digits
0	Binary search
0	Binary strings
0	Binomial transform
0	Bioinformatics/Global alignment
0	Bioinformatics/Sequence mutation
0	Bioinformatics/Subsequence
0	Bioinformatics/base count
0	Biorhythms
0	Birthday problem
0	Bitcoin/address validation
0	Bitcoin/public point to address
0	Bitmap
0	Bitmap/Bresenham's line algorithm
0	Bitmap/Bézier curves/Cubic
0	Bitmap/Bézier curves/Quadratic
0	Bitmap/Flood fill
0	Bitmap/Histogram
0	Bitmap/Midpoint circle algorithm
0	Bitmap/PPM conversion through a pipe
0	Bitmap/Read a PPM file
0	Bitmap/Read an image through a pipe
0	Bitmap/Write a PPM file
0	Bitwise IO
0	Bitwise operations
0	Black box
0	Blackjack strategy
0	Blum integer
0	Boids
0	Boolean values
0	Boustrophedon transform
0	Box the compass
0	Boyer-Moore string search
0	Brace expansion
0	Brace expansion using ranges
0	Brazilian numbers
0	Break OO privacy
0	Brilliant numbers
0	Brownian tree
0	Bulls and cows
0	Bulls and cows/Player
0	Burrows–Wheeler transform
0	Bézier curves/Intersections
0	CLI-based maze-game
0	CORDIC
0	CRC-32
0	CSV data manipulation
0	CSV to HTML translation
0	CUSIP
0	Caesar cipher
0	Calculating the value of e
0	Calendar
0	Calendar - for "REAL" programmers
0	Calkin-Wilf sequence
0	Call a foreign-language function
0	Call a function
0	Call a function in a shared library
0	Call an object method
0	Calmo numbers
0	CalmoSoft primes
0	Camel case and snake case
0	Canny edge detector
0	Canonicalize CIDR
0	Cantor set
0	Card shuffles
0	Carmichael 3 strong pseudoprimes
0	Cartesian product of two or more lists
0	Case-sensitivity of identifiers
0	Casting out nines
0	Catalan numbers
0	Catalan numbers/Pascal's triangle
0	Catamorphism
0	Catmull–Clark subdivision surface
0	Centroid of a set of N-dimensional points
0	Change e letters to i in words
0	Changeable words
0	Chaocipher
0	Chaos game
0	Character codes
0	Chat server
0	Chebyshev coefficients
0	Check Machin-like formulas
0	Check if a polygon overlaps with a rectangle
0	Check if two polygons overlap
0	Check input device is a terminal
0	Check output device is a terminal
0	Check that file exists
0	Checkpoint synchronization
0	Checksumcolor
0	Chemical calculator
0	Chernick's Carmichael numbers
0	Cheryl's birthday
0	Chess player
0	Chinese remainder theorem
0	Chinese zodiac
0	Cholesky decomposition
0	Chowla numbers
0	Church numerals
0	Cipolla's algorithm
0	Circles of given radius through two points
0	Circular primes
0	Cistercian numerals
0	Classes
0	Closest-pair problem
0	Closures/Value capture
0	Code Golf: Code Golf
0	Code segment unload
0	Collect and sort square numbers in ascending order from three lists
0	Collections
0	Color of a screen pixel
0	Color quantization
0	Color separation
0	Color wheel
0	Colorful numbers
0	Colour bars/Display
0	Colour pinstripe/Display
0	Colour pinstripe/Printer
0	Combinations
0	Combinations and permutations
0	Combinations with repetitions
0	Combinations with repetitions/Square digit chain
0	Comma quibbling
0	Command-line arguments
0	Commatizing numbers
0	Comments
0	Common list elements
0	Common sorted list
0	Compare a list of strings
0	Compare length of two strings
0	Compare sorting algorithms' performance
0	Compile-time calculation
0	Compiler/AST interpreter
0	Compiler/Preprocessor
0	Compiler/Simple file inclusion pre processor
0	Compiler/Verifying syntax
0	Compiler/code generator
0	Compiler/lexical analyzer
0	Compiler/syntax analyzer
0	Compiler/virtual machine interpreter
0	Composite numbers k with no single digit factors whose factors are all substrings of k
0	Compound data type
0	Concatenate two primes is also prime
0	Concurrent computing
0	Conditional structures
0	Conjugate a Latin verb
0	Conjugate transpose
0	Consecutive primes with ascending or descending differences
0	Consistent overhead byte stuffing
0	Constrained genericity
0	Constrained random points on a circle
0	Continued fraction
0	Continued fraction/Arithmetic/Construct from rational number
0	Continued fraction/Arithmetic/G(matrix ng, continued fraction n)
0	Continued fraction/Arithmetic/G(matrix ng, continued fraction n1, continued fraction n2)
0	Convert CSV records to TSV
0	Convert decimal number to rational
0	Convert seconds to compound duration
0	Convex hull
0	Conway's Game of Life
0	Coprime triplets
0	Coprimes
0	Copy a string
0	Copy stdin to stdout
0	Count how many vowels and consonants occur in a string
0	Count in factors
0	Count in octal
0	Count occurrences of a substring
0	Count the coins
0	Count the coins/0-1
0	Countdown
0	Cousin primes
0	Cramer's rule
0	Create a file
0	Create a file on magnetic tape
0	Create a two-dimensional array at runtime
0	Create an HTML table
0	Create an executable for a program in an interpreted language
0	Create an object at a given address
0	Create an object/Native demonstration
0	Create your own text control codes
0	Cross compilation
0	Cuban primes
0	Cubic special primes
0	Cullen and Woodall numbers
0	Cumulative standard deviation
0	Currency
0	Currying
0	Curve that touches three points
0	Curzon numbers
0	Cut a rectangle
0	Cycle detection
0	Cycles of a permutation
0	Cyclops numbers
0	Cyclotomic polynomial
0	DNS query
0	Damm algorithm
0	Data Encryption Standard
0	Date format
0	Date manipulation
0	Dating agency
0	Day of the week
0	Day of the week of Christmas and New Year
0	Days between dates
0	De Bruijn sequences
0	De Polignac numbers
0	Deal cards for FreeCell
0	Death Star
0	Deceptive numbers
0	Decimal floating point number to binary
0	Decision tables
0	Deconvolution/1D
0	Deconvolution/2D+
0	Decorate-sort-undecorate idiom
0	Deepcopy
0	Define a primitive data type
0	Delegates
0	Delete a file
0	Deming's funnel
0	Department numbers
0	Descending primes
0	Detect division by zero
0	Determinant and permanent
0	Determine if a string has all the same characters
0	Determine if a string has all unique characters
0	Determine if a string is collapsible
0	Determine if a string is numeric
0	Determine if a string is squeezable
0	Determine if only one instance is running
0	Determine if two triangles overlap
0	Determine sentence type
0	Dice game probabilities
0	Digit fifth powers
0	Digital root
0	Digital root/Multiplicative digital root
0	Dijkstra's algorithm
0	Dinesman's multiple-dwelling problem
0	Dining philosophers
0	Diophantine linear system solving
0	Disarium numbers
0	Discordian date
0	Discrete Fourier transform
0	Display a linear combination
0	Display an outline as a nested table
0	Distance and Bearing
0	Distinct palindromes within decimal numbers
0	Distinct power numbers
0	Distributed programming
0	Distribution of 0 digits in factorial series
0	Diversity prediction theorem
0	Divide a rectangle into a number of unequal triangles
0	Documentation
0	Dominoes
0	Doomsday rule
0	Dot product
0	Double Twin Primes
0	Doubly-linked list/Definition
0	Doubly-linked list/Element definition
0	Doubly-linked list/Element insertion
0	Doubly-linked list/Element removal
0	Doubly-linked list/Traversal
0	Dragon curve
0	Draw a clock
0	Draw a cuboid
0	Draw a pixel
0	Draw a rotating cube
0	Draw a sphere
0	Draw pixel 2
0	Duffinian numbers
0	Dutch national flag problem
0	Dynamic variable names
0	EKG sequence convergence
0	Earliest difference between prime gaps
0	Eban numbers
0	Echo server
0	Eertree
0	Egyptian division
0	Eisenstein primes
0	Element-wise operations
0	Elementary cellular automaton
0	Elementary cellular automaton/Infinite length
0	Elementary cellular automaton/Random number generator
0	Elevator simulation
0	Elliptic Curve Digital Signature Algorithm
0	Elliptic curve arithmetic
0	Emirp primes
0	Empty directory
0	Empty program
0	Empty string
0	Enforced immutability
0	Engel expansion
0	English cardinal anagrams
0	Entropy
0	Entropy/Narcissist
0	Enumerations
0	Environment variables
0	Equal prime and composite sums
0	Equilibrium index
0	Erdös-Selfridge categorization of primes
0	Erdős-Nicolas numbers
0	Erdős-primes
0	Erdős–Woods numbers
0	Esthetic numbers
0	Ethiopian multiplication
0	Euclid-Mullin sequence
0	Euler method
0	Euler's constant 0.5772...
0	Euler's identity
0	Euler's sum of powers conjecture
0	Evaluate binomial coefficients
0	Even numbers which cannot be expressed as the sum of two twin primes
0	Even or odd
0	Events
0	Evolutionary algorithm
0	Exactly three adjacent 3 in lists
0	Exceptions
0	Exceptions/Catch an exception thrown in a nested call
0	Executable library
0	Execute Brain****
0	Execute Computer/Zero
0	Execute CopyPasta Language
0	Execute HQ9+
0	Execute SNUSP
0	Execute a Markov algorithm
0	Execute a system command
0	Exponential digital sums
0	Exponentiation operator
0	Exponentiation order
0	Exponentiation with infix operators in (or operating on) the base
0	Extend your language
0	Extensible prime generator
0	External sort
0	Extra primes
0	Extract file extension
0	Extreme floating point values
0	Extreme primes
0	FASTA format
0	FTP
0	Faces from a mesh
0	Factor-perfect numbers
0	Factorial
0	Factorial base numbers indexing permutations of a collection
0	Factorial primes
0	Factorions
0	Factors of a Mersenne number
0	Factors of an integer
0	Fairshare between two and more
0	Farey sequence
0	Fast Fourier transform
0	Faulhaber's formula
0	Faulhaber's triangle
0	Feigenbaum constant calculation
0	Fermat numbers
0	Fermat pseudoprimes
0	Fibonacci heap
0	Fibonacci matrix-exponentiation
0	Fibonacci n-step number sequences
0	Fibonacci sequence
0	Fibonacci word
0	Fibonacci word/fractal
0	File extension is in extensions list
0	File input/output
0	File modification time
0	File size
0	File size distribution
0	Filter
0	Find Chess960 starting position identifier
0	Find URI in text
0	Find adjacent primes which differ by a square integer
0	Find common directory path
0	Find duplicate files
0	Find first and last set bit of a long integer
0	Find first missing positive
0	Find if a point is within a triangle
0	Find largest left truncatable prime in a given base
0	Find limit of recursion
0	Find minimum number of coins that make a given value
0	Find palindromic numbers in both binary and ternary bases
0	Find prime n such that reversed n is also prime
0	Find prime numbers of the form n*n*n+2
0	Find square difference
0	Find squares n where n+1 is prime
0	Find the intersection of a line with a plane
0	Find the intersection of two lines
0	Find the last Sunday of each month
0	Find the missing permutation
0	Find words which contain the most consonants
0	Find words which contains all the vowels
0	Find words which contains more than 3 e vowels
0	Find words whose first and last three letters are equal
0	Find words with alternating vowels and consonants
0	Finite state machine
0	First 9 prime Fibonacci number
0	First class environments
0	First perfect square in base n with n unique digits
0	First power of 2 that has leading decimal digits of 12
0	First-class functions
0	First-class functions/Use numbers analogously
0	Five weekends
0	Fivenum
0	Fixed length records
0	FizzBuzz
0	Flatten a list
0	Flipping bits game
0	Flow-control structures
0	Floyd's triangle
0	Floyd-Warshall algorithm
0	Forbidden numbers
0	Forest fire
0	Fork
0	Formal power series
0	Formatted numeric output
0	Fortunate numbers
0	Forward difference
0	Four bit adder
0	Four is magic
0	Four is the number of letters in the ...
0	Four sides of square
0	Fractal tree
0	Fraction reduction
0	Fractran
0	Free polyominoes enumeration
0	French Republican calendar
0	Frobenius numbers
0	Function composition
0	Function definition
0	Function frequency
0	Function prototype
0	Functional coverage tree
0	Fusc sequence
0	GUI component interaction
0	GUI enabling/disabling of controls
0	GUI/Maximum window dimensions
0	Galton box animation
0	Gamma function
0	Gapful numbers
0	Gauss-Jordan matrix inversion
0	Gaussian elimination
0	Gaussian primes
0	General FizzBuzz
0	Generalised floating point addition
0	Generalised floating point multiplication
0	Generate Chess960 starting position
0	Generate lower case ASCII alphabet
0	Generate random chess position
0	Generate random numbers without repeating a value
0	Generator/Exponential
0	Generic swap
0	Geohash
0	Geometric algebra
0	Get system command output
0	Getting the number of decimal places
0	Giuga numbers
0	Globally replace text in several files
0	Go Fish
0	Goldbach's comet
0	Golden ratio/Convergence
0	Gotchas
0	Gradient descent
0	Graph colouring
0	Gray code
0	Grayscale image
0	Greatest common divisor
0	Greatest element of a list
0	Greatest subsequential sum
0	Greed
0	Greedy algorithm for Egyptian fractions
0	Greyscale bars/Display
0	Guess the number
0	Guess the number/With feedback
0	Guess the number/With feedback (player)
0	HTTP
0	HTTPS
0	HTTPS/Authenticated
0	HTTPS/Client-authenticated
0	Hailstone sequence
0	Halt and catch fire
0	Hamming numbers
0	Handle a signal
0	Happy numbers
0	Harmonic series
0	Harshad or Niven series
0	Hash from two arrays
0	Hash join
0	Haversine formula
0	Hello world/Graphical
0	Hello world/Line printer
0	Hello world/Newbie
0	Hello world/Newline omission
0	Hello world/Standard error
0	Hello world/Text
0	Hello world/Web server
0	Here document
0	Heronian triangles
0	Hex words
0	Hexapawn
0	Hickerson series of almost integers
0	Higher-order functions
0	Hilbert curve
0	History variables
0	Hofstadter Figure-Figure sequences
0	Hofstadter Q sequence
0	Hofstadter-Conway $10,000 sequence
0	Holidays related to Easter
0	Home primes
0	Honaker primes
0	Honeycombs
0	Horizontal sundial calculations
0	Horner's rule for polynomial evaluation
0	Horse racing
0	Host introspection
0	Hostname
0	Hough transform
0	Hourglass puzzle
0	Huffman coding
0	Humble numbers
0	Hunt the Wumpus
0	I before E except after C
0	I'm a software engineer, get me out of here
0	IBAN
0	IPC via named pipe
0	IRC gateway
0	ISBN13 check digit
0	Iccanobif primes
0	Identity matrix
0	Idiomatically determine all the characters that can be used for symbols
0	Idiomatically determine all the lowercase and uppercase letters
0	Idoneal numbers
0	Image convolution
0	Image noise
0	Imaginary base numbers
0	Implicit type conversion
0	Include a file
0	Inconsummate numbers in base 10
0	Increasing gaps between consecutive Niven numbers
0	Increment a numerical string
0	Index finite lists of positive integers
0	Infinity
0	Inheritance/Multiple
0	Inheritance/Single
0	Inner classes
0	Input loop
0	Input/Output for lines of text
0	Input/Output for pairs of numbers
0	Integer comparison
0	Integer long division
0	Integer overflow
0	Integer roots
0	Integer sequence
0	Interactive help
0	Interactive programming (repl)
0	Intersecting number wheels
0	Introspection
0	Inventory sequence
0	Inverted index
0	Inverted syntax
0	Isograms and heterograms
0	Isqrt (integer square root) of X
0	Iterated digits squaring
0	Iterators
0	JSON
0	JSON pointer
0	Jaccard index
0	Jacobi symbol
0	Jacobsthal numbers
0	Jaro similarity
0	Jaro-Winkler distance
0	Jensen's Device
0	Jewels and stones
0	Jordan-Pólya numbers
0	JortSort
0	Josephus problem
0	Joystick position
0	Juggler sequence
0	Julia set
0	Jump anywhere
0	Just in time processing on a character stream
0	K-d tree
0	K-means++ clustering
0	Kahan summation
0	Kaprekar numbers
0	Kernighans large earthquake problem
0	Keyboard input/Flush the keyboard buffer
0	Keyboard input/Keypress check
0	Keyboard input/Obtain a Y or N response
0	Keyboard macros
0	Klarner-Rado sequence
0	Knapsack problem/0-1
0	Knapsack problem/Bounded
0	Knapsack problem/Continuous
0	Knapsack problem/Unbounded
0	Knight's tour
0	Knuth shuffle
0	Knuth's algorithm S
0	Knuth's power tree
0	Knuth-Morris-Pratt string search
0	Koch curve
0	Kolakoski sequence
0	Kosaraju
0	Kronecker product
0	Kronecker product based fractals
0	LU decomposition
0	LZW compression
0	Lagrange Interpolation
0	Lah numbers
0	Langton's ant
0	Largest difference between adjacent primes
0	Largest five adjacent number
0	Largest int from concatenated ints
0	Largest number divisible by its digits
0	Largest palindrome product
0	Largest prime factor
0	Largest product in a grid
0	Largest proper divisor of n
0	Last Friday of each month
0	Last letter-first letter
0	Last list item
0	Latin Squares in reduced form
0	Latin Squares in reduced form/Randomizing using Jacobson and Matthews' technique
0	Launch rocket with countdown and acceleration in stdout
0	Law of cosines - triples
0	Leap year
0	Least common multiple
0	Least m such that n! + m is prime
0	Left factorials
0	Legendre prime counting function
0	Length of an arc between two angles
0	Leonardo numbers
0	Letter frequency
0	Levenshtein distance
0	Levenshtein distance/Alignment
0	Line circle intersection
0	Linear congruential generator
0	Linux CPU utilization
0	List comprehensions
0	List rooted trees
0	Literals/Floating point
0	Literals/Integer
0	Literals/String
0	Logical operations
0	Logistic curve fitting in epidemiology
0	Long literals, with continuations
0	Long multiplication
0	Long primes
0	Long stairs
0	Long year
0	Longest common prefix
0	Longest common subsequence
0	Longest common substring
0	Longest common suffix
0	Longest increasing subsequence
0	Longest palindromic substrings
0	Longest string challenge
0	Longest substrings without repeating characters
0	Look-and-say sequence
0	Loop over multiple arrays simultaneously
0	Loops/Break
0	Loops/Continue
0	Loops/Do-while
0	Loops/Downward for
0	Loops/For
0	Loops/For with a specified step
0	Loops/Foreach
0	Loops/Increment loop index within loop body
0	Loops/Infinite
0	Loops/N plus one half
0	Loops/Nested
0	Loops/While
0	Loops/With multiple ranges
0	Loops/Wrong ranges
0	Lucas-Lehmer test
0	Lucky and even lucky numbers
0	Ludic numbers
0	Luhn test of credit card numbers
0	Lychrel numbers
0	MAC vendor lookup
0	MD4
0	MD5
0	MD5/Implementation
0	Machine code
0	Mad Libs
0	Magic 8-ball
0	Magic constant
0	Magic numbers
0	Magic squares of doubly even order
0	Magic squares of odd order
0	Magic squares of singly even order
0	Magnanimous numbers
0	Main step of GOST 28147-89
0	Make a backup file
0	Make directory path
0	Man or boy test
0	Mandelbrot set
0	Map range
0	Marching squares
0	Markov chain text generator
0	Mastermind
0	Matrix chain multiplication
0	Matrix digital rain
0	Matrix multiplication
0	Matrix transposition
0	Matrix with two diagonals
0	Matrix-exponentiation operator
0	Maximum difference between adjacent elements of list
0	Maximum triangle path sum
0	Mayan calendar
0	Mayan numerals
0	Maze generation
0	Maze solving
0	McNuggets problem
0	Median filter
0	Meissel–Mertens constant
0	Memory allocation
0	Memory layout of a data structure
0	Menu
0	Merge and aggregate datasets
0	Mersenne primes
0	Mertens function
0	Metallic ratios
0	Metaprogramming
0	Metered concurrency
0	Metronome
0	Mian-Chowla sequence
0	Middle three digits
0	Miller–Rabin primality test
0	Mind boggling card trick
0	Minesweeper game
0	Minimal steps down to 1
0	Minimum multiple of m where digital sum equals m
0	Minimum number of cells after, before, above and below NxN squares
0	Minimum numbers of three lists
0	Minimum positive multiple in base 10 using only 0 and 1
0	Minimum primes
0	Minkowski question-mark function
0	Modified random distribution
0	Modular arithmetic
0	Modular exponentiation
0	Modular inverse
0	Modulinos
0	Monads/List monad
0	Monads/Maybe monad
0	Monads/Writer monad
0	Monte Carlo methods
0	Montgomery reduction
0	Monty Hall problem
0	Morpion solitaire
0	Morse code
0	Mosaic matrix
0	Most frequent k chars distance
0	Motzkin numbers
0	Mouse position
0	Move-to-front algorithm
0	Multi-base primes
0	Multi-dimensional array
0	Multidimensional Newton-Raphson method
0	Multifactorial
0	Multiline shebang
0	Multiple distinct objects
0	Multiple regression
0	Multiplication tables
0	Multiplicative order
0	Multiplicatively perfect numbers
0	Multisplit
0	Multiton
0	Munchausen numbers
0	Munching squares
0	Musical scale
0	Mutex
0	Mutual recursion
0	Möbius function
0	N'th
0	N-body problem
0	N-grams
0	N-queens minimum and knights and bishops
0	N-queens problem
0	N-smooth numbers
0	NYSIIS
0	Named parameters
0	Names to numbers
0	Naming conventions
0	Narcissist
0	Narcissistic decimal number
0	Native shebang
0	Natural sorting
0	Nautical bell
0	Negative base numbers
0	Neighbour primes
0	Nested function
0	Nested templated data
0	Next highest int from digits
0	Next special primes
0	Nice primes
0	Nim game
0	Nimber arithmetic
0	Non-continuous subsequences
0	Non-decimal radices/Convert
0	Non-decimal radices/Input
0	Non-decimal radices/Output
0	Non-transitive dice
0	Nonoblock
0	Nonogram solver
0	Nth root
0	Null object
0	Number names
0	Number reversal game
0	Number triplets game
0	Numbers divisible by their individual digits, but not by the product of their digits.
0	Numbers in base 10 that are palindromic in bases 2, 4, and 16
0	Numbers in base-16 representation that cannot be written with decimal digits
0	Numbers k such that the last letter of k is the same as the first letter of k+1
0	Numbers which are not the sum of distinct squares
0	Numbers which are the cube roots of the product of their proper divisors
0	Numbers whose binary and ternary digit sums are prime
0	Numbers whose count of divisors is prime
0	Numbers with equal rises and falls
0	Numbers with prime digits whose sum is 13
0	Numbers with same digit set in base 10 and base 16
0	Numeric error propagation
0	Numeric separator syntax
0	Numerical and alphabetical suffixes
0	Numerical integration
0	Numerical integration/Adaptive Simpson's method
0	Numerical integration/Gauss-Legendre Quadrature
0	O'Halloran numbers
0	OLE automation
0	Object serialization
0	Odd and square numbers
0	Odd squarefree semiprimes
0	Odd word problem
0	Odd words
0	Old Russian measure of length
0	Old lady swallowed a fly
0	One of n lines in a file
0	One-dimensional cellular automata
0	One-time pad
0	One-two primes
0	OpenGL
0	OpenGL pixel shader
0	OpenGL/Utah teapot
0	OpenWebNet password
0	Operator precedence
0	Optional parameters
0	Orbital elements
0	Order by pair comparisons
0	Order disjoint list items
0	Order two numerical lists
0	Ordered partitions
0	Ordered words
0	Ormiston pairs
0	Ormiston triples
0	Overloaded operators
0	Own digits power sum
0	P-Adic numbers, basic
0	P-Adic square roots
0	P-value correction
0	Padovan n-step number sequences
0	Padovan sequence
0	Pairs with common factors
0	Palindrome dates
0	Palindrome detection
0	Palindromic gapful numbers
0	Palindromic primes
0	Palindromic primes in base 16
0	Pan base non-primes
0	Pancake numbers
0	Pandigital prime
0	Pangram checker
0	Paraffins
0	Parallel brute force
0	Parallel calculations
0	Parameterized SQL statement
0	Parametric polymorphism
0	Parse EBNF
0	Parse an IP Address
0	Parse command-line arguments
0	Parsing/RPN calculator algorithm
0	Parsing/RPN to infix conversion
0	Parsing/Shunting-yard algorithm
0	Partial function application
0	Particle fountain
0	Particle swarm optimization
0	Partition an integer x into n primes
0	Partition function P
0	Pascal matrix generation
0	Pascal's triangle
0	Pascal's triangle/Puzzle
0	Password generator
0	Pathological floating point problems
0	Peaceful chess queen armies
0	Peano curve
0	Pell numbers
0	Pell's equation
0	Penholodigital squares
0	Penney's game
0	Penrose tiling
0	Penta-power prime seeds
0	Pentagram
0	Pentomino tiling
0	Percentage difference between images
0	Perceptron
0	Percolation/Bond percolation
0	Percolation/Mean cluster density
0	Percolation/Mean run density
0	Percolation/Site percolation
0	Perfect numbers
0	Perfect shuffle
0	Perfect totient numbers
0	Periodic table
0	Peripheral drift illusion
0	Perlin noise
0	Permutation test
0	Permutations
0	Permutations by swapping
0	Permutations with repetitions
0	Permutations with some identical elements
0	Permutations/Derangements
0	Permutations/Rank of a permutation
0	Permuted multiples
0	Pernicious numbers
0	Phrase reversals
0	Pi
0	Pick random element
0	Pierpont primes
0	Pig the dice game
0	Pig the dice game/Player
0	Pinstripe/Display
0	Pinstripe/Printer
0	Piprimes
0	Pisano period
0	Plasma effect
0	Play recorded sounds
0	Playfair cipher
0	Playing cards
0	Plot coordinate pairs
0	Pointers and references
0	Poker hand analyser
0	Polymorphic copy
0	Polymorphism
0	Polynomial derivative
0	Polynomial long division
0	Polynomial regression
0	Polynomial synthetic division
0	Polyspiral
0	Population count
0	Posit numbers/decoding
0	Posit numbers/encoding
0	Positive decimal integers with the digit 1 occurring exactly twice
0	Power set
0	Powerful numbers
0	Practical numbers
0	Pragmatic directives
0	Price fraction
0	Price list behind API
0	Primality by Wilson's theorem
0	Primality by trial division
0	Prime conspiracy
0	Prime decomposition
0	Prime numbers p for which the sum of primes less than or equal to p is prime
0	Prime numbers which contain 123
0	Prime numbers whose neighboring pairs are tetraprimes
0	Prime reciprocal sum
0	Prime triangle
0	Prime triplets
0	Prime words
0	Primes - allocate descendants to their ancestors
0	Primes which contain only one odd digit
0	Primes whose first and last number is 3
0	Primes whose sum of digits is 25
0	Primes with digits in nondecreasing order
0	Primes: n*2^m+1
0	Primorial numbers
0	Print debugging statement
0	Print itself
0	Priority queue
0	Probabilistic choice
0	Problem of Apollonius
0	Process SMIL directives in XML data
0	Product of divisors
0	Product of min and max prime factors
0	Program name
0	Program termination
0	Proof
0	Proper divisors
0	Protecting Memory Secrets
0	Pseudo-random numbers/Combined recursive generator MRG32k3a
0	Pseudo-random numbers/Middle-square method
0	Pseudo-random numbers/PCG32
0	Pseudo-random numbers/Splitmix64
0	Pseudo-random numbers/Xorshift star
0	Pseudorandom number generator image
0	Pythagoras tree
0	Pythagorean quadruples
0	Pythagorean triples
0	QR decomposition
0	Quad-power prime seeds
0	Quadrat special primes
0	Quaternion type
0	Queue/Definition
0	Queue/Usage
0	Quickselect algorithm
0	Quine
0	Quoting constructs
0	RCRPG
0	RIPEMD-160
0	RPG attributes generator
0	RSA code
0	Radical of an integer
0	Railway circuit
0	Rainbow
0	Ramanujan primes
0	Ramanujan primes/twins
0	Ramanujan's constant
0	Ramer-Douglas-Peucker line simplification
0	Ramsey's theorem
0	Random Latin squares
0	Random number generator (device)
0	Random number generator (included)
0	Random numbers
0	Random sentence from book
0	Range consolidation
0	Range expansion
0	Range extraction
0	Range modifications
0	Ranking methods
0	Rare numbers
0	Raster bars
0	Rate counter
0	Ray-casting algorithm
0	Read a configuration file
0	Read a file character by character/UTF8
0	Read a file line by line
0	Read a specific line from a file
0	Read entire file
0	Readline interface
0	Real constants and functions
0	Recaman's sequence
0	Record sound
0	Recursive descent parser generator
0	Red black tree sort
0	Reduced row echelon form
0	Reflection/Get source
0	Reflection/List methods
0	Reflection/List properties
0	Regular expressions
0	Remote agent/Agent interface
0	Remote agent/Agent logic
0	Remote agent/Simulation
0	Remove duplicate elements
0	Remove lines from a file
0	Remove vowels from a string
0	Rename a file
0	Rendezvous
0	Rep-string
0	Repeat
0	Repeat a string
0	Repunit primes
0	Resistance calculator
0	Resistance network calculator
0	Resistor mesh
0	Respond to an unknown method call
0	Retrieve and search chat history
0	Return multiple values
0	Reverse a string
0	Reverse the gender of a string
0	Reverse the order of lines in a text file while preserving the contents of each line
0	Reverse words in a string
0	Rhonda numbers
0	Rice coding
0	Riordan numbers
0	Robots
0	Rock-paper-scissors
0	Rodrigues’ rotation formula
0	Roman numerals/Decode
0	Roman numerals/Encode
0	Roots of a function
0	Roots of a quadratic function
0	Roots of unity
0	Rosetta Code/Count examples
0	Rosetta Code/Find bare lang tags
0	Rosetta Code/Find unimplemented tasks
0	Rosetta Code/Fix code tags
0	Rosetta Code/List authors of task descriptions
0	Rosetta Code/Rank languages by number of users
0	Rosetta Code/Rank languages by popularity
0	Rosetta Code/Run examples
0	Rosetta Code/Tasks without examples
0	Rot-13
0	Round-robin tournament schedule
0	Run as a daemon or service
0	Run-length encoding
0	Runge-Kutta method
0	Runtime evaluation
0	Runtime evaluation/In an environment
0	Ruth-Aaron numbers
0	S-expressions
0	SEDOLs
0	SEND + MORE = MONEY
0	SHA-1
0	SHA-256
0	SHA-256 Merkle tree
0	SOAP
0	SQL-based authentication
0	Safe addition
0	Safe and Sophie Germain primes
0	Safe mode
0	Safe primes and unsafe primes
0	Sailors, coconuts and a monkey problem
0	Same fringe
0	Sanitize user input
0	Sattolo cycle
0	Scope modifiers
0	Scope/Function names and labels
0	Sealed classes and methods
0	Search a list
0	Search a list of records
0	Search in paragraph's text
0	Secure temporary file
0	Segmentation fault protection
0	Selection bias in clinical sciences
0	Selective file copy
0	Selectively replace multiple instances of a character within a string
0	Self numbers
0	Self-describing numbers
0	Self-hosting compiler
0	Semiprime
0	Semordnilap
0	Send an unknown method call
0	Send email
0	Separate the house number from the street name
0	Sequence of non-squares
0	Sequence of primes by trial division
0	Sequence of primorial primes
0	Sequence: nth number with exactly n divisors
0	Sequence: smallest number greater than previous term with exactly n divisors
0	Sequence: smallest number with exactly n divisors
0	Set
0	Set consolidation
0	Set of real numbers
0	Set puzzle
0	Set right-adjacent bits
0	Set, the card game
0	Seven-sided dice from five-sided dice
0	Sexy primes
0	Shell one-liner
0	Shift list elements to left by 3
0	Shoelace formula for polygonal area
0	Short-circuit evaluation
0	Shortest common supersequence
0	Show ASCII table
0	Show the (decimal) value of a number of 1s appended with a 3, then squared
0	Show the epoch
0	Sierpinski arrowhead curve
0	Sierpinski carpet
0	Sierpinski curve
0	Sierpinski pentagon
0	Sierpinski square curve
0	Sierpinski triangle
0	Sierpinski triangle/Graphical
0	Sieve of Eratosthenes
0	Sieve of Pritchard
0	Simple database
0	Simple turtle graphics
0	Simple windowed application
0	Simulate input/Keyboard
0	Simulate input/Mouse
0	Simulated annealing
0	Simulated optics experiment/Data analysis
0	Simulated optics experiment/Simulator
0	Sine wave
0	Singleton
0	Singly-linked list/Element definition
0	Singly-linked list/Element insertion
0	Singly-linked list/Element removal
0	Singly-linked list/Reversal
0	Singly-linked list/Traversal
0	Singular value decomposition
0	Sisyphus sequence
0	Sleep
0	Sleeping Beauty problem
0	Smallest enclosing circle problem
0	Smallest multiple
0	Smallest number k such that k+2^m is composite for all m less than k
0	Smallest numbers
0	Smallest power of 6 whose decimal expansion contains n
0	Smallest square that begins with n
0	Smarandache prime-digital sequence
0	Smarandache-Wellin primes
0	Smith numbers
0	Snake
0	Snake and ladder
0	Sockets
0	Sokoban
0	Soloway's recurring rainfall
0	Solve a Hidato puzzle
0	Solve a Holy Knight's tour
0	Solve a Hopido puzzle
0	Solve a Numbrix puzzle
0	Solve a Rubik's cube
0	Solve equations with substitution method
0	Solve hanging lantern problem
0	Solve the no connection puzzle
0	Solve triangle solitare puzzle
0	Solving coin problems
0	Sorensen–Dice coefficient
0	Sort a list of object identifiers
0	Sort an array of composite structures
0	Sort an integer array
0	Sort an outline at every level
0	Sort disjoint sublist
0	Sort numbers lexicographically
0	Sort primes from list to a list
0	Sort stability
0	Sort the letters of string in alphabetical order
0	Sort three variables
0	Sort using a custom comparator
0	Sorting Algorithms/Circle Sort
0	Sorting algorithms/Bead sort
0	Sorting algorithms/Bogosort
0	Sorting algorithms/Bubble sort
0	Sorting algorithms/Cocktail sort
0	Sorting algorithms/Cocktail sort with shifting bounds
0	Sorting algorithms/Comb sort
0	Sorting algorithms/Counting sort
0	Sorting algorithms/Cycle sort
0	Sorting algorithms/Gnome sort
0	Sorting algorithms/Heapsort
0	Sorting algorithms/Insertion sort
0	Sorting algorithms/Merge sort
0	Sorting algorithms/Pancake sort
0	Sorting algorithms/Patience sort
0	Sorting algorithms/Permutation sort
0	Sorting algorithms/Quicksort
0	Sorting algorithms/Radix sort
0	Sorting algorithms/Selection sort
0	Sorting algorithms/Shell sort
0	Sorting algorithms/Sleep sort
0	Sorting algorithms/Stooge sort
0	Sorting algorithms/Strand sort
0	Sorting algorithms/Tree sort on a linked list
0	Soundex
0	Sparkline in unicode
0	Special characters
0	Special divisors
0	Special factorials
0	Special neighbor primes
0	Special pythagorean triplet
0	Special variables
0	Speech synthesis
0	Spelling of ordinal numbers
0	Sphenic numbers
0	Spinning rod animation/Text
0	Spiral matrix
0	Split a character string based on change of character
0	Spoof game
0	Square but not cube
0	Square form factorization
0	Square root by hand
0	Square-free integers
0	Stable marriage problem
0	Stack
0	Stack traces
0	Stair-climbing puzzle
0	Start from a main routine
0	Starting a web browser
0	State name puzzle
0	Statistics/Basic
0	Statistics/Chi-squared distribution
0	Statistics/Normal distribution
0	Steady squares
0	Steffensen's method
0	Stem-and-leaf plot
0	Stern-Brocot sequence
0	Stirling numbers of the first kind
0	Stirling numbers of the second kind
0	Straddling checkerboard
0	Strange numbers
0	Strange plus numbers
0	Strange unique prime triplets
0	Strassen's algorithm
0	Stream merge
0	String append
0	String case
0	String comparison
0	String concatenation
0	String interpolation (included)
0	String length
0	String matching
0	String prepend
0	Strip a set of characters from a string
0	Strip block comments
0	Strip comments from a string
0	Strip control codes and extended characters from a string
0	Strip whitespace from a string/Top and tail
0	Strong and weak primes
0	Sub-unit squares
0	Subleq
0	Subset sum problem
0	Substitution cipher
0	Substring
0	Substring primes
0	Substring/Top and tail
0	Subtractive generator
0	Successive prime differences
0	Sudan function
0	Sudoku
0	Suffix tree
0	Suffixation of decimal numbers
0	Sum and product of an array
0	Sum and product puzzle
0	Sum data type
0	Sum digits of an integer
0	Sum multiples of 3 and 5
0	Sum of a series
0	Sum of divisors
0	Sum of elements below main diagonal of matrix
0	Sum of first n cubes
0	Sum of primes in odd positions is prime
0	Sum of square and cube digits of an integer are primes
0	Sum of squares
0	Sum of the digits of n is substring of n
0	Sum of two adjacent numbers are primes
0	Sum to 100
0	Summarize and say sequence
0	Summarize primes
0	Summation of primes
0	Sunflower fractal
0	Super-Poulet numbers
0	Super-d numbers
0	Superellipse
0	Superpermutation minimisation
0	Sutherland-Hodgman polygon clipping
0	Sylvester's sequence
0	Symmetric difference
0	Synchronous concurrency
0	Syntax highlighting using Mediawiki formatting
0	System time
0	Szymański's algorithm
0	Table creation
0	Table creation/Postal addresses
0	Take notes on the command line
0	Tamagotchi emulator
0	Tarjan
0	Tau function
0	Tau number
0	Taxicab numbers
0	Teacup rim text
0	Temperature conversion
0	Terminal control/Clear the screen
0	Terminal control/Coloured text
0	Terminal control/Cursor movement
0	Terminal control/Cursor positioning
0	Terminal control/Dimensions
0	Terminal control/Display an extended character
0	Terminal control/Hiding the cursor
0	Terminal control/Inverse video
0	Terminal control/Positional read
0	Terminal control/Preserve screen
0	Terminal control/Restricted width positional input/No wrapping
0	Terminal control/Restricted width positional input/With wrapping
0	Terminal control/Ringing the terminal bell
0	Terminal control/Unicode output
0	Ternary logic
0	Test a function
0	Test integerness
0	Tetris
0	Text between
0	Text completion
0	Text processing/1
0	Text processing/2
0	Text processing/Max licenses in use
0	Text to HTML
0	Textonyms
0	The ISAAC cipher
0	The Name Game
0	The Twelve Days of Christmas
0	The sieve of Sundaram
0	Thiele's interpolation formula
0	Three word location
0	Thue-Morse
0	Tic-tac-toe
0	Time a function
0	Time-based one-time password algorithm
0	Tokenize a string
0	Tokenize a string with escaping
0	Tonelli-Shanks algorithm
0	Top rank per group
0	Topic variable
0	Topological sort
0	Topological sort/Extracted top item
0	Topswops
0	Total circles area
0	Totient function
0	Towers of Hanoi
0	Trabb Pardo–Knuth algorithm
0	Transliterate English text using the Greek alphabet
0	Transportation problem
0	Tree datastructures
0	Tree from nesting levels
0	Tree traversal
0	Triangular numbers
0	Trigonometric functions
0	Triplet of three numbers
0	Tropical algebra overloading
0	Truncatable primes
0	Truncate a file
0	Truth table
0	Tupper's self-referential formula
0	Twelve statements
0	Twin primes
0	Two bullet roulette
0	Two identical strings
0	Two sum
0	Two's complement
0	Type detection
0	UPC
0	URL decoding
0	URL encoding
0	URL parser
0	URL shortener
0	UTF-8 encode and decode
0	Ukkonen’s suffix tree construction
0	Ulam numbers
0	Ulam spiral (for primes)
0	Ultra useful primes
0	Unbias a random generator
0	Undefined values
0	Undulating numbers
0	Unicode polynomial equation
0	Unicode strings
0	Unicode variable names
0	Unique characters
0	Unique characters in each string
0	Unit testing
0	Universal Turing machine
0	Unix/ls
0	Uno (card game)
0	Unprimeable numbers
0	Untouchable numbers
0	Untrusted environment
0	Update a configuration file
0	Upside-down numbers
0	Use a REST API
0	Use another language to call a function
0	Useless instructions
0	User defined pipe and redirection operators
0	User input/Graphical
0	User input/Text
0	Using a speech engine to highlight words
0	VList
0	Validate International Securities Identification Number
0	Vampire number
0	Van Eck sequence
0	Van der Corput sequence
0	Variable declaration reset
0	Variable size/Get
0	Variable size/Set
0	Variable-length quantity
0	Variables
0	Variadic function
0	Vector
0	Vector products
0	Verhoeff algorithm
0	Verify distribution uniformity/Chi-squared test
0	Verify distribution uniformity/Naive
0	Vibrating rectangles
0	Video display modes
0	Vidir
0	Vigenère cipher
0	Vigenère cipher/Cryptanalysis
0	Visitor pattern
0	Visualize a tree
0	Vogel's approximation method
0	Voronoi diagram
0	Wagstaff primes
0	Walk a directory/Non-recursively
0	Walk a directory/Recursively
0	Walsh matrix
0	War card game
0	Wasteful, equidigital and frugal numbers
0	Water collected between towers
0	Wave function collapse
0	Waveform analysis/Doh ray me
0	Waveform analysis/Top and tail
0	Weather routing
0	Web scraping
0	WebGL rotating F
0	Weird numbers
0	Welch's t-test
0	Wieferich primes
0	WiktionaryDumps to words
0	Wilson primes of order n
0	Window creation
0	Window creation/X11
0	Window management
0	Wireworld
0	Wolstenholme numbers
0	Word break problem
0	Word frequency
0	Word ladder
0	Word search
0	Word wheel
0	Word wrap
0	Wordiff
0	Wordle comparison
0	Words containing "the" substring
0	Words from neighbour ones
0	World Cup group stage
0	Worthwhile task shaving
0	Write entire file
0	Write float arrays to a text file
0	Write language name in 3D ASCII
0	Write to Windows event log
0	XML validation
0	XML/DOM serialization
0	XML/Input
0	XML/Output
0	XML/XPath
0	XXXX redacted
0	Xiaolin Wu's line algorithm
0	Y combinator
0	Yahoo! search interface
0	Yellowstone sequence
0	Yin and yang
0	Zebra puzzle
0	Zeckendorf arithmetic
0	Zeckendorf number representation
0	Zero to the zero power
0	Zhang-Suen thinning algorithm
0	Zig-zag matrix
0	Zsigmondy numbers
0	Zumkeller numbers