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Rosetta Code/Count examples/Full list

From Rosetta Code

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

This is something of a experiment. The top 10 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. Ideally it would be nice to be able to generate the table for any language but it is fairly intensive to generate. Once a week is ok, on demand would be unsustainable.

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

Top ten programming languages by number of task examples completed:
① Go
② Phix
③ Julia
④ Raku
⑤ Perl
⑥ Python
⑦ Kotlin
⑧ C
⑨ Java
⑩ Racket
As of 2020-08-02T21:06:43Z :: Tasks: 1062 :: Draft Tasks:201 :: Total Tasks: 1263 :: Total Examples: 69209
Count Task
466 Hello world/Text
310 99 Bottles of Beer
306 100 doors
301 FizzBuzz
277 Fibonacci sequence
276 Factorial
268 Comments
254 A+B
250 Empty program
231 Function definition
222 Loops/Infinite
220 Reverse a string
218 Arrays
216 Loops/While
212 Ackermann function
202 Loops/For
196 Conditional structures
194 Greatest element of a list
192 Arithmetic/Integer
185 Greatest common divisor
184 Array concatenation
183 Repeat a string
182 Averages/Arithmetic mean
182 Integer comparison
180 Boolean values
179 Increment a numerical string
178 Even or odd
178 Loops/Downward for
173 Hello world/Graphical
171 Copy a string
163 Character codes
162 Apply a callback to an array
161 String concatenation
160 Loops/Do-while
160 Sum and product of an array
159 Hello world/Newline omission
159 Loops/For with a specified step
158 Binary digits
158 Loops/Foreach
158 Sieve of Eratosthenes
157 Array length
157 Loops/Break
157 String length
155 Loops/N plus one half
154 Integer sequence
154 Palindrome detection
154 String case
154 Sum of a series
152 Generic swap
152 Leap year
151 Hailstone sequence
151 Tokenize a string
150 Empty string
150 Logical operations
150 Sum of squares
150 Towers of Hanoi
148 Dot product
148 Filter
148 Rot-13
145 Associative array/Creation
145 Sort an integer array
145 Sorting algorithms/Bubble sort
143 Execute a system command
141 Factors of an integer
140 Caesar cipher
140 Guess the number
140 Quine
139 Determine if a string is numeric
139 Higher-order functions
138 File input/output
138 User input/Text
137 Remove duplicate elements
136 Hello world/Standard error
136 Roman numerals/Encode
136 System time
134 Day of the week
133 Bitwise operations
133 Command-line arguments
133 Primality by trial division
133 Read entire file
132 Sorting algorithms/Quicksort
131 Create a file
130 Loop over multiple arrays simultaneously
130 Luhn test of credit card numbers
130 Substring
129 Sleep
129 Stack
128 Check that file exists
128 Loops/Continue
127 Literals/String
125 Generate lower case ASCII alphabet
125 Mutual recursion
125 Pascal's triangle
123 Date format
123 Happy numbers
123 Least common multiple
122 Binary search
122 Flatten a list
121 Include a file  
121 Literals/Integer
120 Detect division by zero
120 Variables
120 Zero to the zero power
119 Balanced brackets
119 Compound data type
119 Program termination
118 Associative array/Iteration
118 Formatted numeric output
118 Knuth shuffle
118 Loops/Nested
117 ABC Problem
117 Function composition
116 Averages/Root mean square
116 Hash from two arrays
116 Null object
116 Read a file line by line
115 File size
115 Mandelbrot set
115 Sorting algorithms/Insertion sort
114 Classes
114 Delete a file
114 Ethiopian multiplication
114 Search a list
113 Count in octal
113 Count occurrences of a substring
113 N-queens problem
112 Averages/Median
112 Case-sensitivity of identifiers
112 Guess the number/With feedback
112 Input loop
112 Roman numerals/Decode
111 Hostname  
111 Multiplication tables
111 Real constants and functions
110 Anagrams
110 Environment variables
110 Identity matrix
110 Matrix multiplication
110 Matrix transposition
110 Random numbers
110 Rename a file
109 HTTP
108 Haversine formula
108 Pick random element
108 Return multiple values
108 String matching
107 Align columns
107 Babbage problem
107 Find limit of recursion
106 Accumulator factory
106 Arithmetic/Complex
106 Letter frequency
106 Pangram checker
106 Perfect numbers
105 Assertions
105 Conway's Game of Life
105 Horner's rule for polynomial evaluation
104 Averages/Pythagorean means
104 Catalan numbers
104 Program name
103 Infinity
103 Levenshtein distance
103 Temperature conversion
103 Variadic function
102 Evaluate binomial coefficients
102 Regular expressions
102 Strip a set of characters from a string
101 Arithmetic-geometric mean
101 Exceptions
101 Permutations
100 Nth root
100 Run-length encoding
100 Substring/Top and tail
100 Zig-zag matrix
99 Combinations
99 Queue/Definition
99 Reverse words in a string
99 String append
99 String interpolation (included)
99 Strip whitespace from a string/Top and tail
99 Trigonometric functions
98 Anonymous recursion
98 Short-circuit evaluation
98 Sorting algorithms/Merge sort
97 Prime decomposition
97 Sorting algorithms/Selection sort
96 Comma quibbling
96 Look-and-say sequence
96 Shell one-liner
95 24 game
95 Bulls and cows
95 Create a two-dimensional array at runtime
95 Ordered words
94 Call a function
94 Enumerations
94 Interactive programming  
93 Collections
93 Middle three digits
93 Range extraction
93 Y combinator
92 Sierpinski triangle
92 Sorting algorithms/Gnome sort
92 String prepend
92 Sum multiples of 3 and 5
92 Time a function
91 Arbitrary-precision integers (included)
91 Exponentiation operator
91 First-class functions
91 Power set
91 Range expansion
91 Vector products
90 Inheritance/Single
90 MD5
90 Random number generator (included)
90 Sorting algorithms/Cocktail sort
90 Sum digits of an integer
90 Walk a directory/Non-recursively
89 Create an HTML table
89 Cumulative standard deviation
89 One-dimensional cellular automata
89 Sequence of non-squares
88 Averages/Simple moving average
87 Averages/Mode
87 Digital root
87 Evolutionary algorithm
87 Langton's ant
87 N'th
86 Entropy
86 Execute Brain****
86 Five weekends
86 JSON
86 Sierpinski carpet
86 Sort using a custom comparator
85 Forward difference
85 Hamming numbers
85 Sorting algorithms/Bogosort
84 Greatest subsequential sum
84 Monty Hall problem
84 Symmetric difference
84 Window creation
83 Abstract type
83 Abundant, deficient and perfect number classifications
83 Dragon curve
83 Harshad or Niven series
83 Josephus problem
83 Price fraction
82 CSV data manipulation
82 CSV to HTML translation
82 Closures/Value capture
82 File modification time
82 Gray code
82 Last Friday of each month
82 String comparison
82 The Twelve Days of Christmas
82 Tree traversal
81 Menu
81 Simple windowed application
81 Sorting algorithms/Heapsort
80 Amicable pairs
80 Box the compass
80 Map range
80 Number names  
80 Sort an array of composite structures
79 Introspection
79 Literals/Floating point
79 Queue/Usage
79 SEDOLs
78 Catamorphism
78 Hello world/Line printer
78 Hello world/Newbie
78 Monte Carlo methods
78 Non-decimal radices/Convert
78 Read a specific line from a file
78 Singly-linked list/Traversal
78 Terminal control/Clear the screen
78 Walk a directory/Recursively
78 Web scraping
77 Count in factors
77 Floyd's triangle
77 Number reversal game
77 Set
77 Sockets
77 Sorting algorithms/Shell sort
77 Spiral matrix
77 Terminal control/Ringing the terminal bell
77 URL decoding
77 XML/Input
76 Calculating the value of e
76 Call an object method
76 Playing cards
75 Address of a variable  
75 CRC-32
75 Compare a list of strings
75 Concurrent computing
75 Date manipulation
75 Pythagorean triples
75 Roots of unity
75 Show the epoch
74 Bitmap
74 Dynamic variable names    
74 Find the last Sunday of each month
74 Hofstadter Q sequence
74 Knapsack problem/0-1
74 Lucas-Lehmer test
74 Multifactorial
74 Order two numerical lists
74 Proper divisors
74 Sorting algorithms/Counting sort
74 Top rank per group
74 URL encoding
73 Almost prime
73 Count the coins
73 Fibonacci n-step number sequences
73 Find common directory path
73 Hello world/Web server
73 Here document  
73 Linear congruential generator
73 Soundex
73 Strip comments from a string
72 Averages/Mean angle
72 Kaprekar numbers
72 Keyboard input/Obtain a Y or N response  
72 List comprehensions
72 Long multiplication
72 Man or boy test
72 Sorting algorithms/Comb sort
72 Unicode variable names
71 Equilibrium index
71 Exceptions/Catch an exception thrown in a nested call
71 Find the missing permutation
71 Gamma function
71 Non-decimal radices/Output
71 Operator precedence
71 Semordnilap
71 Singly-linked list/Element definition
71 Special characters
71 Take notes on the command line
71 Word wrap
70 Empty directory
70 Pi
70 Repeat
70 SHA-1
70 SHA-256
69 Bitmap/Bresenham's line algorithm  
69 Calendar
69 Draw a sphere
69 Jensen's Device
69 Modular inverse
69 Parsing/RPN calculator algorithm
69 Phrase reversals
69 Polymorphism
69 Quaternion type
69 Read a configuration file
69 Rock-paper-scissors
69 Sudoku
69 Write entire file
68 Anagrams/Deranged anagrams
68 Animation
68 Convert seconds to compound duration
68 IBAN
68 Multiple distinct objects
68 Self-describing numbers
68 Stair-climbing puzzle
68 Trabb Pardo–Knuth algorithm
68 Vigenère cipher
67 AKS test for primes
67 Call a foreign-language function
67 Currying
67 Enforced immutability
67 Execute HQ9+
67 Flow-control structures
67 Four bit adder
67 Longest common subsequence
67 Sorting algorithms/Stooge sort
67 Split a character string based on change of character
67 Write float arrays to a text file
66 15 Puzzle Game  
66 Fork
66 Guess the number/With feedback (player)
66 Sort disjoint sublist
65 Benford's law
65 Catalan numbers/Pascal's triangle
65 Constrained random points on a circle
65 Euler's sum of powers conjecture
65 Horizontal sundial calculations
65 Magic squares of odd order
65 Maze generation
65 Munchausen numbers
65 Named parameters
65 Numerical integration
65 Variable size/Get  
65 Zeckendorf number representation
64 Arithmetic/Rational
64 Closest-pair problem
64 Euler method
64 Extend your language  
64 Fractal tree
64 Inheritance/Multiple
64 Largest int from concatenated ints
64 Population count
64 Runtime evaluation    
63 Combinations with repetitions
63 Continued fraction
63 Documentation
63 Sort stability
63 Special variables
63 Unix/ls
63 Van der Corput sequence
63 XML/Output
62 Fast Fourier transform
62 Hofstadter-Conway $10,000 sequence
62 Jump anywhere
62 Morse code
62 Narcissistic decimal number
62 Nested function
62 Remove lines from a file
62 Roots of a function
62 Singly-linked list/Element insertion
62 Strip control codes and extended characters from a string
62 Text processing/Max licenses in use
61 Amb  
61 Cholesky decomposition
61 HTTPS
61 One of n lines in a file
61 Optional parameters
61 Pernicious numbers
61 Priority queue
61 Show Ascii table
61 Write language name in 3D ASCII
60 Barnsley fern
60 Chinese remainder theorem
60 Factors of a Mersenne number
60 Memory allocation
60 Probabilistic choice
60 Rep-string
60 Roots of a quadratic function
60 Sequence of primes by trial division
60 Undefined values
59 Arithmetic evaluation
59 Averages/Mean time of day
59 Binary strings
59 Globally replace text in several files
59 Host introspection
59 Sorting algorithms/Pancake sort
59 Sorting algorithms/Sleep sort
59 User input/Graphical
58 Circles of given radius through two points
58 Draw a clock
58 Exponentiation order
58 General FizzBuzz
58 Get system command output
58 Non-decimal radices/Input
58 Old lady swallowed a fly
58 Partial function application
58 Plot coordinate pairs
58 Reduced row echelon form
58 Runge-Kutta method
58 Test a function  
58 Tic-tac-toe
57 24 game/Solve
57 Animate a pendulum
57 Generator/Exponential
57 Huffman coding
57 Left factorials
57 Miller–Rabin primality test
57 Modular exponentiation
57 Mouse position
57 Semiprime
57 Sorting algorithms/Bead sort
57 Thue-Morse
56 Add a variable to a class instance at runtime      
56 Angle difference between two bearings
56 Brownian tree
56 Dutch national flag problem
56 Hash join  
56 JortSort
56 Knapsack problem/Unbounded
56 Knight's tour
56 LZW compression
56 Stem-and-leaf plot
56 Truncatable primes  
56 Unicode strings
56 XML/XPath  
55 9 billion names of God the integer
55 Anti-primes
55 Compile-time calculation    
55 Deal cards for FreeCell
55 Define a primitive data type  
55 Department Numbers
55 Emirp primes
55 Extreme floating point values
55 Fibonacci word
55 Knapsack problem/Continuous
55 Odd word problem
55 Singleton
55 Terminal control/Display an extended character
54 Best shuffle
54 Delegates
54 Dinesman's multiple-dwelling problem
54 Forest fire  
54 Integer overflow
54 Multisplit
54 Runtime evaluation/In an environment    
54 Scope modifiers
54 Stack traces
54 Topological sort
54 Two Sum
54 Word frequency
54 Yin and yang
53 4-rings or 4-squares puzzle  
53 Bitmap/Write a PPM file  
53 Extract file extension
53 Leonardo numbers
53 Matrix-exponentiation operator  
53 Munching squares
53 Random number generator (device)
53 Rosetta Code/Rank languages by popularity  
53 Send email
53 Sort three variables
53 Sorting algorithms/Permutation sort
53 Synchronous concurrency
52 CUSIP
52 Doubly-linked list/Element definition
52 Draw a cuboid
52 Grayscale image
52 Handle a signal
52 I before E except after C
52 Inverted syntax
52 Iterated digits squaring
52 Pointers and references  
52 Terminal control/Cursor positioning    
52 Truncate a file
52 XML/DOM serialization
51 Maximum triangle path sum
51 Modulinos  
51 Sierpinski triangle/Graphical
51 Statistics/Basic
51 Subleq
51 Text processing/2
50 2048  
50 Base64 encode data
50 Bernoulli numbers
50 Cartesian product of two or more lists
50 Convert decimal number to rational
50 Dining philosophers
50 Discordian date
50 Non-continuous subsequences
50 Quickselect algorithm
50 Respond to an unknown method call    
50 Ternary logic
50 Unbias a random generator
50 Wireworld  
49 First-class functions/Use numbers analogously    
49 Heronian triangles
49 Keyboard input/Keypress check
49 Ludic numbers
49 Mad Libs  
49 Seven-sided dice from five-sided dice
49 Terminal control/Coloured text  
49 Universal Turing machine
49 Validate International Securities Identification Number
48 Call a function in a shared library
48 FASTA format
48 Farey sequence
48 Longest common prefix
48 Longest increasing subsequence
48 Text processing/1
47 DNS query      
47 Dijkstra's algorithm
47 GUI component interaction  
47 Gaussian elimination
47 Polynomial regression
47 Rate counter
47 Zebra puzzle
46 Chinese zodiac
46 Determine if only one instance is running
46 Doubly-linked list/Traversal  
46 Extensible prime generator
46 Fractran
46 Greyscale bars/Display
46 Longest string challenge
46 Loops/Increment loop index within loop body
46 Move-to-front algorithm
46 Polymorphic copy
46 Search a list of records
46 Shoelace formula for polygonal area
46 Smith numbers
46 Stable marriage problem
46 Stern-Brocot sequence
46 Tokenize a string with escaping
46 Vector
45 Append a record to the end of a text file
45 Archimedean spiral
45 Attractive numbers
45 Doubly-linked list/Element insertion
45 Draw a pixel
45 Echo server  
45 Find the intersection of two lines
45 History variables  
45 Holidays related to Easter
45 Make directory path
45 Metaprogramming  
45 Naming conventions  
45 Pascal matrix generation
45 Send an unknown method call  
45 Strip block comments
44 Abundant odd numbers
44 Average loop length
44 Bitmap/Flood fill
44 Carmichael 3 strong pseudoprimes
44 Colour bars/Display
44 Jaro distance
44 Last letter-first letter
44 Perfect shuffle
44 Pig the dice game
44 Rosetta Code/Count examples    
44 Set consolidation
43 Bitmap/Read a PPM file  
43 Execute a Markov algorithm
43 Hofstadter Figure-Figure sequences  
43 Image noise
43 Parsing/Shunting-yard algorithm
43 Password generator
43 Polynomial long division
43 Sattolo cycle
43 Sort numbers lexicographically
43 Verify distribution uniformity/Naive
43 Visualize a tree
42 100 prisoners
42 Base64 decode data  
42 Chaos game
42 Determinant and permanent
42 Doubly-linked list/Definition  
42 Element-wise operations
42 Generate Chess960 starting position
42 Kronecker product
42 Longest Common Substring
42 OpenGL
42 Percentage difference between images
42 Sparkline in unicode
42 Ulam spiral (for primes)
41 Active object
41 Atomic updates
41 Bulls and cows/Player
41 Damm algorithm
41 Determine if a string has all the same characters
41 Digital root/Multiplicative digital root
41 Egyptian division
41 Hickerson series of almost integers
41 Jewels and Stones
41 Keyboard input/Flush the keyboard buffer  
41 MD5/Implementation
41 McNuggets Problem
41 Narcissist
41 Secure temporary file
41 Spinning rod animation/Text
41 Start from a main routine    
41 Sum to 100
41 Table creation/Postal addresses    
41 Twelve statements  
41 Variable size/Set  
40 Calendar - for "REAL" programmers    
40 Elementary cellular automaton
40 Fusc sequence
40 Problem of Apollonius
40 Speech synthesis  
40 Subtractive generator
40 Terminal control/Dimensions  
39 Aliquot sequence classifications
39 Cantor set
39 GUI enabling/disabling of controls  
39 Knapsack problem/Bounded
39 Parametric polymorphism    
39 Permutations/Derangements
39 RPG Attributes Generator
39 S-Expressions
39 Sorting algorithms/Radix sort
39 Sorting algorithms/Strand sort
39 Text between
38 Balanced ternary
38 Casting out nines
38 Color of a screen pixel
38 Combinations and permutations
38 Constrained genericity      
38 GUI/Maximum window dimensions
38 Julia set
38 Kernighans large earthquake problem
38 Parallel calculations
38 Pascal's triangle/Puzzle
38 Sorting Algorithms/Circle Sort
38 Topswops
38 UTF-8 encode and decode
38 Van Eck sequence
38 Variable-length quantity
38 Voronoi diagram
37 Break OO privacy    
37 Deepcopy
37 Flipping bits game
37 Inverted index
37 Knuth's algorithm S
37 LU decomposition
37 Long year?    
37 Nim Game
37 Parsing/RPN to infix conversion
37 Permutations by swapping
37 Prime conspiracy
37 Pythagorean quadruples
37 QR decomposition  
37 Ray-casting algorithm
37 Self-referential sequence
37 Sort a list of object identifiers
37 Statistics/Normal distribution
37 Taxicab numbers
37 Terminal control/Inverse video  
37 Water collected between towers
36 Bitmap/Midpoint circle algorithm      
36 Create a file on magnetic tape  
36 Currency
36 Determine if a string has all unique characters  
36 File extension is in extensions list
36 Hilbert curve
36 Magic squares of doubly even order  
36 Permutation test
36 Primorial numbers
36 Terminal control/Hiding the cursor  
36 Vampire number
35 Abbreviations, automatic  
35 Bell numbers  
35 Chowla numbers  
35 Cramer's rule
35 Euler's identity
35 Events    
35 Find palindromic numbers in both binary and ternary bases
35 Function prototype    
35 Lychrel numbers  
35 MD4
35 Metered concurrency
35 Minesweeper game  
35 Multiline shebang    
35 Musical scale  
35 Numerical integration/Gauss-Legendre Quadrature
35 Object serialization  
35 Order disjoint list items  
35 Permutations with repetitions
35 Sailors, coconuts and a monkey problem
35 Scope/Function names and labels  
35 Terminal control/Unicode output  
34 Associative array/Merging    
34 Colour pinstripe/Display
34 Copy stdin to stdout
34 Cuban primes
34 Fibonacci word/fractal
34 Fivenum
34 Floyd-Warshall algorithm
34 Input/Output for Pairs of Numbers
34 Pathological floating point problems
34 Pinstripe/Display
34 Square but not cube
34 Sutherland-Hodgman polygon clipping
34 Test integerness
33 Bitwise IO  
33 Brace expansion  
33 Determine if a string is collapsible  
33 Entropy/Narcissist
33 Executable library  
33 Feigenbaum constant calculation
33 Input/Output for Lines of Text
33 Kahan summation
33 Largest number divisible by its digits  
33 MAC Vendor Lookup
33 Magic 8-Ball
33 Maze solving
33 Parametrized SQL statement
33 Penney's game
33 RIPEMD-160
33 Read a file character by character/UTF8
33 Square-free integers
33 Totient function
32 Bitcoin/address validation
32 Bitmap/Bézier curves/Cubic    
32 Check output device is a terminal  
32 Days between dates  
32 Humble numbers
32 Integer roots
32 Ordered Partitions  
32 Pythagoras tree
32 Ranking methods
32 Rosetta Code/Find bare lang tags      
32 Substitution Cipher
32 Truth table
32 URL parser  
31 Arithmetic-geometric mean/Calculate Pi
31 Conjugate transpose  
31 Decimal floating point number to binary  
31 Egyptian fractions
31 Find the intersection of a line with a plane
31 Galton box animation
31 Gapful numbers  
31 Long primes
31 Multiple regression  
31 Mutex  
31 Parse command-line arguments  
31 RSA code
31 Recaman's sequence  
31 Set puzzle
31 Solve the no connection puzzle  
31 Straddling checkerboard
31 Subset sum problem
31 Topic variable    
31 Write to Windows event log
30 Abbreviations, easy
30 Abbreviations, simple
30 Approximate Equality
30 Bitmap/Bézier curves/Quadratic    
30 Bitmap/Histogram  
30 Brazilian numbers  
30 Continued fraction/Arithmetic/Construct from rational number
30 Convex hull
30 Display a linear combination
30 Keyboard macros
30 Metronome
30 Multiplicative order
30 Numeric error propagation
30 Partition an integer X into N primes
30 Pattern matching      
30 Pentagram
30 Poker hand analyser
30 Reflection/List properties    
30 Resistor mesh
30 Simple database
30 Solve a Hidato puzzle
30 Terminal control/Cursor movement  
30 Textonyms
30 The Name Game  
29 Check Machin-like formulas  
29 Check input device is a terminal  
29 Cycle detection
29 Execute SNUSP
29 First class environments  
29 Loops/Wrong ranges
29 Loops/with multiple ranges  
29 Negative base numbers
29 Use another language to call a function    
29 Window creation/X11
29 Zhang-Suen thinning algorithm
28 Apply a digital filter (direct form II transposed)  
28 Chat server  
28 Checkpoint synchronization
28 Compiler/lexical analyzer  
28 Deconvolution/1D
28 Determine if a string is squeezable  
28 FTP
28 ISBN13 check digit    
28 Idiomatically determine all the lowercase and uppercase letters
28 Implicit type conversion
28 Memory layout of a data structure    
28 Mersenne primes  
28 Rosetta Code/Find unimplemented tasks        
28 Safe primes and unsafe primes  
28 Set of real numbers
28 Sorting algorithms/Patience sort
28 Terminal control/Preserve screen
28 Xiaolin Wu's line algorithm
27 Active Directory/Connect  
27 Bacon cipher
27 Chaocipher  
27 Cheryl's Birthday
27 Church Numerals    
27 Death Star  
27 Eban numbers  
27 Find first and last set bit of a long integer
27 Formal power series
27 HTTPS/Authenticated  
27 Jacobi symbol  
27 Koch curve  
27 Multi-dimensional array
27 Palindrome dates    
27 Paraffins
27 Parallel Brute Force
27 Perfect totient numbers
27 Pragmatic directives  
27 Rosetta Code/Fix code tags    
27 Sequence: smallest number greater than previous term with exactly n divisors  
27 Sequence: smallest number with exactly n divisors  
27 Sorting algorithms/Cycle sort
27 State name puzzle
27 Update a configuration file
27 Verify distribution uniformity/Chi-squared test
26 Arena storage pool    
26 Decision tables
26 Dice game probabilities
26 Distributed programming      
26 Faulhaber's formula  
26 Faulhaber's triangle
26 Find largest left truncatable prime in a given base
26 Go Fish  
26 Honeycombs  
26 Mian-Chowla sequence  
26 Modular arithmetic
26 Natural sorting  
26 Nautical bell
26 Ramsey's theorem
26 Reflection/List methods    
26 Safe addition
26 Same Fringe  
26 Strong and weak primes  
26 Superellipse
26 Table creation      
25 AVL tree    
25 Chemical Calculator  
25 Create an object at a given address      
25 Determine if two triangles overlap
25 Factorions  
25 Fairshare between two and more  
25 Image convolution
25 Law of cosines - triples  
25 Old Russian measure of length
25 Polyspiral  
25 Smarandache prime-digital sequence    
25 Sum and Product Puzzle
25 The ISAAC Cipher
25 Thiele's interpolation formula
25 Word break problem  
24 Birthday problem
24 Card shuffles
24 K-means++ clustering  
24 Lah numbers  
24 Plasma effect
24 RCRPG  
24 Ramer-Douglas-Peucker line simplification
24 Sequence of primorial primes
24 Sexy primes  
24 Simulate input/Keyboard    
24 Solve a Holy Knight's tour  
24 Type detection    
24 Weird numbers  
24 Welch's t-test
24 Yahoo! search interface      
23 Burrows–Wheeler transform  
23 Chebyshev coefficients
23 Draw a rotating cube
23 Fermat numbers  
23 First perfect square in base N with N unique digits  
23 Four is magic
23 Fraction reduction
23 Generate random chess position  
23 Hough transform
23 Kronecker product based fractals  
23 Machine code    
23 Main step of GOST 28147-89  
23 Make a backup file  
23 Perlin noise
23 Play recorded sounds          
23 Record sound    
23 SOAP    
23 Sierpinski pentagon  
23 Stream Merge  
23 Teacup rim text    
23 Zumkeller numbers  
22 21 Game  
22 A* search algorithm  
22 Base58Check encoding  
22 Cipolla's algorithm
22 Deming's Funnel  
22 Diversity prediction theorem    
22 First power of 2 that has leading decimal digits of 12  
22 Function frequency    
22 Idiomatically determine all the characters that can be used for symbols  
22 Linux CPU utilization  
22 Magic squares of singly even order  
22 Markov chain text generator  
22 Pell's equation  
22 Percolation/Mean run density  
22 Permutations/Rank of a permutation
22 Range consolidation
22 Reverse the gender of a string  
22 Stirling numbers of the second kind    
22 Successive prime differences    
22 Superpermutation minimisation
22 Tonelli-Shanks algorithm
22 Total circles area
22 World Cup group stage  
21 Active Directory/Search for a user        
21 AudioAlarm      
21 Color wheel  
21 Create an object/Native demonstration  
21 Cut a rectangle
21 Elementary cellular automaton/Random Number Generator  
21 Fixed length records        
21 Intersecting Number Wheels  
21 N-smooth numbers  
21 Nonoblock  
21 Palindromic gapful numbers      
21 Parse an IP Address
21 Peano curve  
21 Pig the dice game/Player    
21 Playfair cipher    
21 Spelling of ordinal numbers  
21 Video display modes      
21 Window management  
20 Abelian sandpile model    
20 Addition chains
20 Angles (geometric), normalization and conversion    
20 Commatizing numbers  
20 Elliptic curve arithmetic
20 Joystick position          
20 Median filter  
20 Monads/Maybe monad        
20 Native shebang    
20 Numeric separator syntax  
20 Orbital elements  
20 Shortest common supersequence
20 Snake And Ladder
20 Sokoban
20 Solve a Hopido puzzle  
20 Solve a Numbrix puzzle    
20 Stirling numbers of the first kind    
20 Super-d numbers    
20 Unprimeable numbers    
20 Yellowstone sequence      
19 Bilinear interpolation
19 Data Encryption Standard  
19 Find duplicate files    
19 Finite state machine  
19 Hunt The Wumpus      
19 Lucky and even lucky numbers    
19 Mastermind      
19 Mind boggling card trick      
19 N-body problem  
19 Pierpont primes  
19 Readline interface
19 Reflection/Get source      
19 Simulate input/Mouse    
18 Circular primes    
18 Code segment unload  
18 Color quantization  
18 Eertree  
18 Gauss-Jordan matrix inversion    
18 K-d tree  
18 Kolakoski sequence  
18 Magnanimous numbers      
18 Monads/List monad      
18 Monads/Writer monad        
18 Random Latin Squares    
18 SQL-based authentication
18 Selective File Copy    
18 Sorting algorithms/Cocktail sort with shifting bounds        
18 Sunflower fractal    
18 Untrusted environment      
18 Vigenère cipher/Cryptanalysis
17 Arithmetic coding/As a generalized change of radix    
17 Assertions in design by contract      
17 Bitcoin/public point to address    
17 Compiler/code generator    
17 De Bruijn sequences  
17 EKG sequence convergence  
17 Elementary cellular automaton/Infinite length    
17 Index finite lists of positive integers  
17 Just in time processing on a character stream
17 Kosaraju  
17 Levenshtein distance/Alignment  
17 List rooted trees  
17 Mertens function      
17 Minimum positive multiple in base 10 using only 0 and 1      
17 Montgomery reduction
17 Names to numbers    
17 Next highest int from digits  
17 P-value correction  
17 Perceptron      
17 Percolation/Site percolation  
17 Primes - allocate descendants to their ancestors
17 Print debugging statement
17 Separate the house number from the street name    
17 Solve triangle solitare puzzle  
17 Sum data type      
17 Zeckendorf arithmetic  
16 Aspect Oriented Programming  
16 Bioinformatics/Sequence mutation  
16 Bioinformatics/base count    
16 Compiler/syntax analyzer      
16 Compiler/virtual machine interpreter      
16 Esthetic numbers      
16 File size distribution  
16 Find URI in text        
16 HTTPS/Client-authenticated    
16 Imaginary base numbers  
16 Increasing gaps between consecutive Niven numbers      
16 Knuth's power tree  
16 Length of an arc between two angles      
16 Most frequent k chars distance    
16 Particle Swarm Optimization  
16 Polynomial synthetic division  
16 Primality by Wilson's theorem    
16 Self-hosting compiler          
16 Vogel's approximation method  
16 Word search  
15 15 puzzle solver          
15 Bitmap/Read an image through a pipe      
15 Draw pixel 2    
15 Free polyominoes enumeration      
15 Geometric algebra      
15 Matrix Digital Rain    
15 NYSIIS  
15 Nested templated data      
15 Nonogram solver    
15 Percolation/Bond percolation  
15 Percolation/Mean cluster density  
15 Rendezvous        
15 Retrieve and search chat history        
15 Suffix tree  
15 Terminal control/Positional read    
15 Transportation problem      
15 Word wheel      
14 Line circle intersection    
14 Matrix chain multiplication    
14 Mayan numerals      
14 Numerical integration/Adaptive Simpson's method  
14 Peaceful chess queen armies  
14 Proof              
14 Snake    
14 Twin Prime Conjecture        
14 Vibrating rectangles    
13 Bitmap/PPM conversion through a pipe      
13 Compare sorting algorithms' performance        
13 Compiler/AST interpreter      
13 Cyclotomic Polynomial    
13 Four is the number of letters in the ...  
13 Functional coverage tree    
13 Generalised floating point addition    
13 Isqrt (integer square root) of X            
13 Latin Squares in reduced form      
13 Metallic ratios    
13 Möbius function        
13 Permutations with some identical elements          
13 Remove vowels from a string        
13 Sequence: nth number with exactly n divisors    
13 Singly-linked list/Element removal      
13 Tarjan    
13 Topological sort/Extracted top item
13 XML Validation      
12 Banker's algorithm    
12 Canonicalize CIDR      
12 Chernick's Carmichael numbers      
12 Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N)      
12 Deconvolution/2D+      
12 Longest common suffix        
12 Nimber arithmetic        
12 OpenWebNet Password    
12 Pisano period      
12 Ramanujan's constant      
12 Rare numbers          
12 Sine wave      
11 ASCII art diagram converter      
11 Abelian sandpile model/Identity          
11 Canny edge detector          
11 Factorial base numbers indexing permutations of a collection        
11 Gradient descent        
11 Logistic Curve Fitting in Epidemiology      
11 Safe mode            
11 Simulated annealing        
11 Sorting algorithms/Tree sort on a linked list      
11 UPC          
11 VList        
10 Audio frequency generator            
10 Execute CopyPasta Language      
10 External sort        
10 Interactive Help        
10 Penrose tiling    
10 Railway circuit      
10 Run as a daemon or service          
10 Sierpinski arrowhead curve        
10 Sierpinski curve        
10 Sierpinski square curve        
10 Spoof game      
10 Tetris            
10 Text Completion          
9 Catmull–Clark subdivision surface            
9 Colour pinstripe/Printer        
9 Combinations with repetitions/Square Digit Chain        
9 Fibonacci matrix-exponentiation        
9 French Republican calendar        
9 Geohash          
9 Greed          
9 Launch rocket with countdown and acceleration in stdout        
9 Morpion solitaire        
9 Parse EBNF            
9 Pentomino tiling        
9 Pinstripe/Printer          
9 Print itself              
9 Resistance Calculator        
9 Starting a web browser        
9 Suffixation of decimal numbers        
9 Time-based One-time Password Algorithm            
9 Using a Speech engine to highlight words                
8 Checksumcolor          
8 Faces from a mesh        
8 Long literals, with continuations            
8 Minimal steps down to 1        
8 Numerical and alphabetical suffixes          
8 One-time pad      
8 Powerful numbers        
8 Three word location          
8 Unit testing            
8 User defined pipe and redirection operators          
7 16 Puzzle Game            
7 Compiler/Verifying Syntax        
7 Curve that touches three points          
7 Display an outline as a nested table          
7 Fibonacci heap        
7 IPC via named pipe              
7 Jaro-Winkler Distance            
7 Multidimensional Newton-Raphson method          
7 Quoting constructs            
7 Resistance Network Calculator        
7 Robots        
7 Rosetta Code/Rank languages by number of users          
7 Tree datastructures        
7 XXXX redacted          
6 Elliptic Curve Digital Signature Algorithm          
6 Graph colouring          
6 Mayan calendar          
6 OpenGL Pixel Shader            
6 OpenGL/Utah Teapot            
6 Recursive descent parser generator            
6 Rosetta Code/Run examples                
6 Rosetta Code/Tasks without examples            
6 Text to HTML            
5 Addition-chain exponentiation            
5 Black Box              
5 Boids          
5 Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)              
5 Hexapawn              
5 Raster bars            
5 Remote agent/Agent interface              
5 Remote agent/Agent logic              
5 Remote agent/Simulation              
5 Solve a Rubik's Cube            
5 Terminal control/Restricted width positional input/No wrapping            
5 Terminal control/Restricted width positional input/With wrapping            
5 URL shortener              
4 Audio Overlap Loop                
4 Chess player              
4 Generalised floating point multiplication              
4 I'm a software engineer, get me out of here              
4 OLE Automation                
4 Process SMIL directives in XML data              
4 Tamagotchi emulator                  
4 Using the Meetup.com API              
4 Waveform analysis/Doh ray me            
4 Weather Routing              
3 Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique                
3 Rosetta Code/List authors of task descriptions              
3 Solving coin problems              
3 Unicode polynomial equation              
3 Vidir                
2 15 Puzzle Game in 3D                  
2 CLI-based maze-game                  
2 IRC gateway                  
2 Pseudorandom Number Generator Image                
2 Ukkonen’s Suffix Tree Construction                
2 Waveform analysis/Top and tail                
1 Blackjack strategy                  
1 Create DWM statusbar