Rosetta Code/List authors of task descriptions

In this task, the goal is to compile an authorship list for task descriptions. A pseudocode example (in imperative style) that should accomplish this is as follows:

<lang pseudocode>for each task page

 grab page source, discard everything after the first ==section==.

Cache as $previous. Note $author.

 for each revision
   grab page source, discard everything after first ==section==.

Cache as $previous2. Note $author2

   compare $previous2 to $previous. If different, record $author to $list.
   replace $previous with $previous2
   replace $author with $author2</lang>

The following resources for HTTP interface information for MediaWiki may prove to be useful:

Conversely, some languages have libraries which abstract these interfaces into language-native idioms. Use of these abstractions is perfectly fine.

Please DO NOT add a full output for each programming language; just show a representative sample. One full list is useful. Multiple full lists just use space and bandwidth.

As of 2017-12-23 \| Total: 1073 / Tasks: 867 / Draft Tasks: 206 / By 247 Authors
User	Authored
2Powers ?	2013-05-16 - Draft: Names to numbers 2013-05-16 - Draft: Solving coin problems
12.175.32.19 ?	2009-11-12 - Task: Soundex
12Me21 ?	2015-05-04 - Task: Draw a rotating cube
64.131.185.25 ?	2008-03-14 - Task: Sierpinski carpet 2008-03-14 - Task: Sierpinski triangle
66.120.226.84 ?	2008-12-03 - Task: Top rank per group
67.20.197.154 ?	2011-03-24 - Task: RSA code
68.38.195.134 ?	2008-08-03 - Task: Zig-zag matrix
68.175.31.239 ?	2008-08-02 - Task: SEDOLs
69.12.181.181 ?	2007-04-07 - Task: Random numbers
70.83.182.253 ?	2007-04-07 - Task: Check that file exists 2007-04-07 - Task: Create a file 2007-04-07 - Task: Delete a file 2007-04-07 - Task: File modification time 2007-04-07 - Task: File size 2007-04-07 - Task: Rename a file
71.205.120.86 ?	2007-09-18 - Task: Function definition
74.56.102.15 ?	2007-02-24 - Task: Compound data type 2007-02-22 - Task: Copy a string 2007-02-23 - Task: Enumerations 2007-02-23 - Task: Increment a numerical string 2007-02-23 - Task: Polymorphism 2007-02-24 - Task: Stack
74.74.225.216 ?	2007-10-30 - Task: Singly-linked list/Traversal
76.19.46.239 ?	2008-03-07 - Task: Non-decimal radices/Convert
76.91.63.71 ?	2009-07-17 - Task: Sorting algorithms/Heapsort
77.250.119.152 ?	2011-12-02 - Task: Haversine formula
78.35.107.83 ?	2010-07-20 - Task: Discordian date 2010-07-20 - Task: Leap year
78.146.0.60 ?	2010-09-21 - Task: Narcissist
79.54.58.148 ?	2011-11-30 - Task: Paraffins
82.32.24.201 ?	2011-06-09 - Draft: Aspect Oriented Programming
83.104.248.190 ?	2007-12-09 - Task: Matrix multiplication
87.224.129.185 ?	2012-03-05 - Task: Canny edge detector
91.4.78.20 ?	2011-02-07 - Task: Ordered Partitions
96.20.64.30 ?	2009-03-31 - Task: Mandelbrot set
99.105.56.162 ?	2011-01-10 - Task: Levenshtein distance
137.195.250.2 ?	2008-05-07 - Task: Sorting algorithms/Bogosort 2008-05-08 - Task: Sorting algorithms/Permutation sort
142.204.88.102 ?	2011-03-08 - Task: Create an HTML table
145.254.251.66 ?	2007-11-07 - Task: List comprehensions
145.254.251.95 ?	2007-11-06 - Task: Pattern matching
146.201.224.238 ?	2008-04-18 - Task: Reverse a string
155.192.0.234 ?	2011-05-04 - Task: Sorting algorithms/Strand sort
165.124.208.73 ?	2011-10-28 - Task: Pythagoras tree
171.65.33.13 ?	2007-02-13 - Task: Command-line arguments
195.33.114.129 ?	2008-05-20 - Task: Sorting algorithms/Shell sort
200.102.26.6 ?	2008-09-25 - Task: HTTP
201.67.232.39 ?	2010-12-30 - Task: Record sound
207.74.29.206 ?	2007-01-15 - Task: Window creation
209.63.105.137 ?	2007-01-22 - Task: Associative array/Creation 2007-02-06 - Task: Fork 2007-01-23 - Task: Table creation/Postal addresses
219.77.140.150 ?	2008-08-17 - Task: Factorial
Abu ?	2010-11-23 - Task: Anonymous recursion 2010-12-10 - Task: Chat server 2012-04-24 - Draft: Chess player 2010-08-27 - Task: Extend your language 2011-06-30 - Task: First class environments 2011-11-02 - Task: Function frequency 2010-08-23 - Task: GUI component interaction 2010-08-23 - Task: GUI enabling/disabling of controls 2010-12-14 - Task: Maze generation 2010-12-15 - Task: Maze solving 2010-08-24 - Task: Morse code 2010-12-15 - Task: Parallel calculations 2011-01-11 - Task: Random number generator (device)
Adonis ?	2007-01-27 - Task: Classes 2007-01-24 - Task: Walk a directory/Non-recursively 2007-01-24 - Task: XML/DOM serialization
Akshay ?	2011-12-08 - Draft: Dijkstra's algorithm
AlainD ?	2014-01-20 - Task: Fractran 2015-07-22 - Task: URL parser
Alegend ?	2010-04-11 - Task: Evaluate binomial coefficients
AlexLehm ?	2011-10-30 - Task: Langton's ant
Aloisdg ?	2016-12-03 - Draft: Diversity prediction theorem 2016-09-22 - Task: Munchausen numbers 2016-08-29 - Draft: Sattolo cycle 2016-10-04 - Draft: Two Sum
AnatolV ?	2017-04-05 - Task: Kronecker product 2017-04-05 - Task: Kronecker product based fractals
Avi ?	2011-03-07 - Task: Cholesky decomposition 2011-06-08 - Task: Element-wise operations 2011-03-06 - Task: Euler method 2011-03-11 - Task: LU decomposition 2011-05-28 - Task: Numerical integration/Gauss-Legendre Quadrature 2011-06-17 - Task: QR decomposition 2017-03-05 - Task: UTF-8 encode and decode
Axtens ?	2011-01-24 - Draft: Decision tables 2010-04-20 - Task: Find limit of recursion 2011-06-29 - Task: History variables 2011-06-05 - Task: Last letter-first letter 2010-03-15 - Task: Price fraction 2015-04-21 - Draft: Rosetta Code/Tasks without examples 2010-04-01 - Task: Take notes on the command line
Backupbrain ?	2007-01-23 - Task: SOAP
Badmadevil ?	2008-03-22 - Task: Pascal's triangle/Puzzle 2008-06-07 - Task: Power set
Bcdady ?	2010-05-07 - Task: Write to Windows event log
Bearophile ?	2013-10-14 - Draft: ASCII art diagram converter 2013-01-06 - Draft: Boids 2015-01-14 - Draft: Dice game probabilities 2014-10-28 - Draft: Free polyominoes enumeration 2013-08-02 - Task: Generate lower case ASCII alphabet 2014-08-23 - Task: Iterated digits squaring 2014-02-20 - Task: Maximum triangle path sum 2013-11-21 - Task: Nonogram solver 2015-04-25 - Task: Sum and Product Puzzle 2012-09-15 - Task: Total circles area
Binki ?	2015-10-22 - Task: Write entire file
Bjartur ?	2014-05-17 - Draft: Repeat
Bjrtr ?	2011-08-16 - Task: Call an object method
BlaiseP ?	2014-07-22 - Task: The ISAAC Cipher
Blue Prawn ?	2008-12-06 - Task: Bitmap 2008-12-06 - Task: Bitmap/Bresenham's line algorithm 2008-12-06 - Task: Bitmap/Bézier curves/Cubic 2008-12-06 - Task: Bitmap/Bézier curves/Quadratic 2008-12-06 - Task: Bitmap/Midpoint circle algorithm 2008-12-06 - Task: Bitmap/PPM conversion through a pipe 2008-12-06 - Task: Bitmap/Write a PPM file 2010-01-06 - Task: Catmull–Clark subdivision surface 2013-03-28 - Draft: Check output device is a terminal 2010-09-23 - Task: Equilibrium index 2008-12-07 - Task: Image convolution 2011-11-05 - Task: Last Friday of each month 2008-08-08 - Task: LZW compression 2008-12-07 - Task: Median filter 2009-09-12 - Task: N-queens problem 2008-11-13 - Task: Percentage difference between images 2010-01-02 - Draft: Process SMIL directives in XML data 2008-08-26 - Task: Shell one-liner 2008-11-13 - Task: Window creation/X11
Bob9000 ?	2007-01-28 - Task: Sort an integer array 2007-01-30 - Task: Sort using a custom comparator 2007-02-04 - Task: SQL-based authentication
BR ?	2010-01-25 - Task: Sorting algorithms/Comb sort
Bubbajim3 ?	2017-01-14 - Task: MAC Vendor Lookup
Bugmenot ?	2015-09-26 - Task: Array length 2015-10-07 - Draft: Type detection
Bugmenot2 ?	2015-10-09 - Task: Search a list of records
Bukzor ?	2014-08-09 - Task: Make directory path
Casebash ?	2010-10-15 - Task: String matching
Cblp ?	2016-06-15 - Task: Stream Merge
Ce ?	2007-05-28 - Task: Arithmetic/Integer 2007-03-12 - Task: Comments 2008-12-05 - Task: Constrained genericity 2007-02-27 - Task: Create a two-dimensional array at runtime 2008-01-20 - Task: Infinity 2008-04-27 - Task: Inheritance/Multiple 2007-03-31 - Task: Integer comparison 2007-11-18 - Task: Logical operations 2008-04-18 - Task: Loops/Downward for 2008-04-18 - Task: Loops/N plus one half 2007-01-25 - Task: Pointers and references 2009-07-08 - Task: Tree traversal
Cook ?	2007-11-13 - Task: Literals/String 2007-11-13 - Task: Special characters
Created by: X ?	2007-01-21 - Task: Determine if a string is numeric
CRGreathouse ?	2010-11-01 - Task: Literals/Floating point 2012-06-29 - Task: Matrix arithmetic 2011-07-09 - Task: Rosetta Code/Find bare lang tags 2013-01-17 - Draft: Untrusted environment
Crossrodas1112 ?	2017-05-10 - Draft: Word break problem
Cyberjacob ?	2011-05-05 - Draft: IRC gateway
D2 ?	2007-01-24 - Task: Towers of Hanoi
Damian.nikodem ?	2007-11-26 - Task: Sockets
DanBron ?	2008-10-10 - Task: Host introspection 2011-05-27 - Task: K-means++ clustering
Danprager ?	2013-06-10 - Draft: Deming's Funnel
DataWraith ?	2009-04-24 - Task: Run-length encoding
Davewhipp ?	2010-09-02 - Task: Constrained random points on a circle
Davgot ?	2014-01-24 - Task: Chinese remainder theorem
DavidMcCabe ?	2011-08-27 - Task: Send an unknown method call
Daxim ?	2007-10-07 - Task: 100 doors 2007-10-07 - Task: FizzBuzz 2007-06-08 - Task: HTTPS/Authenticated 2007-06-08 - Task: OpenGL
Dbohdan ?	2014-06-12 - Task: 2048 2014-06-03 - Task: FTP 2017-05-03 - Task: Retrieve and search chat history
Dgamey ?	2011-07-17 - Task: Deepcopy 2011-05-06 - Task: Galton box animation 2011-08-12 - Task: Longest string challenge 2010-09-29 - Task: MD5/Implementation 2011-05-06 - Task: Sierpinski triangle/Graphical 2011-08-29 - Task: State name puzzle
Dingowolf ?	2010-10-01 - Draft: Create an object/Native demonstration 2009-05-06 - Task: Happy numbers 2010-10-30 - Task: Strip block comments 2010-10-14 - Task: Variable-length quantity
Dirkt ?	2008-03-28 - Task: Formal power series 2008-03-27 - Task: Non-continuous subsequences 2007-11-08 - Task: Parametric polymorphism
Dkf ?	2009-12-28 - Task: Accumulator factory 2009-08-07 - Task: Animate a pendulum 2009-06-14 - Task: Animation 2009-06-12 - Task: Averages/Median 2009-06-13 - Task: Averages/Mode 2009-06-16 - Task: Cumulative standard deviation 2009-05-13 - Task: Echo server 2010-11-22 - Task: Generator/Exponential 2010-01-21 - Task: Hough transform 2009-06-01 - Task: HTTPS 2009-06-01 - Task: HTTPS/Client-authenticated 2009-06-28 - Task: Named parameters 2009-06-09 - Task: Non-decimal radices/Input 2009-06-03 - Task: Respond to an unknown method call 2012-10-15 - Draft: Rosetta Code/Tasks sorted by average lines of code 2011-04-24 - Task: Speech synthesis 2009-05-18 - Task: Stack traces 2010-03-23 - Task: Sutherland-Hodgman polygon clipping 2010-10-16 - Task: Terminal control/Ringing the terminal bell 2009-08-09 - Task: Verify distribution uniformity/Chi-squared test 2009-09-09 - Task: Wireworld
Dmitry-kazakov ?	2008-11-20 - Task: Abstract type 2008-11-02 - Task: Active object 2009-03-22 - Task: Arena storage pool 2008-12-07 - Task: Bitmap/Histogram 2008-12-07 - Task: Bitmap/Read a PPM file 2009-08-11 - Task: Call a foreign-language function 2010-08-10 - Task: Checkpoint synchronization 2009-06-08 - Task: Create an object at a given address 2008-11-01 - Task: Dining philosophers 2009-06-10 - Task: Events 2008-12-07 - Task: Grayscale image 2009-06-11 - Task: Loops/Nested 2008-10-25 - Task: Polymorphic copy 2009-02-17 - Task: Rendezvous 2009-08-12 - Task: Safe addition 2009-08-11 - Task: Use another language to call a function
Domgetter ?	2016-02-01 - Draft: Monads/List monad 2016-02-01 - Draft: Monads/Maybe monad
Drea ?	2007-10-18 - Task: Sieve of Eratosthenes
DSblizzard ?	2011-02-27 - Task: Multisplit
Dstaley ?	2015-03-03 - Task: JortSort
Dstaudacher ?	2012-10-22 - Task: Create a file on magnetic tape
Dubs ?	2017-01-20 - Draft: Solve a Rubik's Cube
Dukzcry ?	2013-05-02 - Task: AVL tree
Dwarring ?	2013-12-09 - Task: Poker hand analyser
Ed Davis ?	2016-10-19 - Task: Compiler/AST interpreter 2016-10-22 - Task: Compiler/code generator 2016-08-14 - Task: Compiler/lexical analyzer 2016-09-28 - Task: Compiler/syntax analyzer 2016-10-22 - Task: Compiler/virtual machine interpreter
Edmund ?	2016-04-11 - Task: Babbage problem 2016-09-19 - Draft: French Republican calendar
Emarch ?	2014-10-17 - Draft: I.Q. Puzzle
EMBee ?	2012-01-03 - Draft: Find URI in text 2011-11-09 - Draft: Make a backup file 2011-11-28 - Task: Order two numerical lists 2011-11-02 - Draft: Readline interface 2011-11-22 - Draft: Rosetta Code/Run examples 2011-11-17 - Draft: Run as a daemon or service 2011-10-15 - Task: S-Expressions 2011-11-01 - Task: Simple database 2012-01-05 - Draft: Text to HTML
Emeraude ?	2015-10-09 - Task: Floyd-Warshall algorithm
Eoraptor ?	2017-12-17 - Draft: Rosetta Code/Rank languages by number of users
Epsilon ?	2007-12-11 - Task: Arithmetic evaluation 2007-12-21 - Draft: Proof
Eriksiers ?	2010-04-05 - Task: Sorting algorithms/Pancake sort
Fabian ?	2007-01-21 - Task: Collections
Farter ?	2015-11-05 - Draft: Tetris
Francogrex ?	2013-11-25 - Task: Hash join 2013-12-31 - Task: Machine code
Fwend ?	2016-03-02 - Task: Archimedean spiral 2016-03-01 - Task: Barnsley fern 2010-12-11 - Task: Best shuffle 2016-03-01 - Task: Chaos game 2016-03-06 - Task: Julia set 2016-03-16 - Task: Magic squares of doubly even order 2016-03-16 - Task: Magic squares of singly even order 2016-04-22 - Draft: Penrose tiling 2015-04-21 - Task: Pentagram 2016-03-27 - Draft: Pentomino tiling 2016-04-25 - Draft: Perceptron 2016-03-08 - Task: Plasma effect 2016-03-09 - Task: Polyspiral 2012-09-07 - Task: Semordnilap 2013-02-09 - Task: Set puzzle 2015-10-15 - Task: Sierpinski pentagon 2015-10-16 - Task: Superellipse 2013-02-12 - Task: Temperature conversion 2013-03-22 - Task: Vampire number 2016-03-26 - Task: Word search
G.Brougnard ?	2016-01-28 - Draft: Addition chains 2016-03-25 - Draft: Cipolla's algorithm 2016-03-19 - Draft: Prime conspiracy 2016-01-21 - Draft: Railway circuit 2016-03-23 - Draft: Simulated annealing 2016-03-28 - Draft: Tonelli-Shanks algorithm
Geka Sua ?	2007-12-24 - Task: Compare sorting algorithms' performance 2007-12-24 - Task: Plot coordinate pairs 2007-12-24 - Task: Polynomial regression 2007-12-24 - Task: Time a function 2007-12-24 - Task: Write float arrays to a text file
Geoffhacker ?	2015-02-18 - Draft: Longest Common Substring
Georg Peter ?	2014-07-29 - Task: Integer overflow
Gerard Schildberger ?	2016-12-31 - Task: 4-rings or 4-squares puzzle 2017-09-17 - Draft: Abbreviations, automatic 2017-09-17 - Draft: Abbreviations, easy 2017-09-17 - Draft: Abbreviations, simple 2014-03-11 - Task: Bernoulli numbers 2014-04-05 - Task: Commatizing numbers 2014-04-02 - Draft: Egyptian fractions 2014-03-24 - Task: Emirp primes 2014-03-18 - Task: Exponentiation order 2014-03-31 - Task: Farey sequence 2014-03-25 - Task: Find palindromic numbers in both binary and ternary bases 2017-09-11 - Draft: Four is the number of letters in the ... 2014-03-21 - Draft: Idiomatically determine all the characters that can be used for symbols 2014-03-21 - Draft: Idiomatically determine all the lowercase and uppercase letters 2015-06-02 - Draft: Knuth's power tree 2014-03-29 - Task: Left factorials 2017-05-20 - Task: Leonardo numbers 2014-03-05 - Task: Lucky and even lucky numbers 2014-03-20 - Task: Magic squares of odd order 2017-03-03 - Task: Partition an integer X into N primes 2014-03-12 - Task: Pernicious numbers 2014-03-12 - Task: Population count 2015-06-12 - Task: Primorial numbers 2017-07-11 - Task: Pythagorean quadruples 2014-03-27 - Task: Reverse words in a string 2017-04-30 - Task: Sort three variables 2017-09-07 - Draft: Spelling of ordinal numbers 2016-12-30 - Task: Split a character string based on change of character 2016-12-31 - Task: Sum to 100 2014-03-14 - Task: Taxicab numbers 2015-01-14 - Task: Ulam spiral (for primes) 2014-03-18 - Task: Zero to the zero power
Gfannes ?	2007-01-22 - Task: Apply a callback to an array 2007-01-22 - Task: Filter 2007-01-22 - Task: Hash from two arrays 2007-01-22 - Task: Remove duplicate elements 2007-01-22 - Task: XML/XPath
Glennj ?	2009-07-10 - Task: Boolean values 2009-05-13 - Task: Date manipulation 2009-10-09 - Task: Doubly-linked list/Traversal 2009-08-06 - Task: Loop over multiple arrays simultaneously 2009-07-10 - Task: Loops/For with a specified step 2009-10-21 - Task: Repeat a string
GlitchMr ?	2012-09-24 - Draft: Check input device is a terminal 2017-05-29 - Draft: Damm algorithm
Gn4v3 ?	2007-06-20 - Task: Greatest subsequential sum
GozzoMan ?	2007-01-24 - Task: Higher-order functions
Grauenwolf ?	2007-11-14 - Task: Determine if only one instance is running 2008-12-25 - Task: Doubly-linked list/Definition 2008-12-25 - Task: XML/Input 2008-12-25 - Task: XML/Output
GreatPalash ?	2015-10-12 - Draft: Substitution Cipher
Grondilu ?	2012-11-27 - Task: Bitcoin/address validation 2012-11-29 - Task: Bitcoin/public point to address 2015-10-11 - Draft: Display a linear combination 2014-02-27 - Task: Elementary cellular automaton 2014-03-20 - Draft: Elementary cellular automaton/Infinite length 2014-03-19 - Draft: Elementary cellular automaton/Random Number Generator 2012-11-30 - Draft: Elliptic curve arithmetic 2013-02-26 - Draft: Entropy/Narcissist 2013-04-03 - Task: FASTA format 2014-05-01 - Task: Generate Chess960 starting position 2015-12-11 - Draft: Generate random chess position 2015-10-13 - Draft: Geometric algebra 2014-05-08 - Draft: Index finite lists of positive integers 2013-05-02 - Draft: Levenshtein distance/Alignment 2013-02-21 - Draft: Modular arithmetic 2012-11-30 - Task: Modular inverse 2016-07-06 - Draft: Orbital elements 2014-03-05 - Draft: Perlin noise 2012-11-02 - Task: SHA-256 2013-02-22 - Draft: Shortest common supersequence 2013-05-10 - Draft: Suffix tree 2014-06-18 - Task: Test integerness 2013-01-24 - Task: Topic variable
Guga360 ?	2009-07-30 - Task: Arrays 2009-07-21 - Task: Execute HQ9+ 2010-09-30 - Task: Image noise 2009-01-29 - Task: Rosetta Code/Fix code tags 2009-01-24 - Task: Rosetta Code/Rank languages by popularity 2009-05-03 - Task: Yahoo! search interface
Hailholyghost ?	2017-11-01 - Draft: P-value correction 2015-05-26 - Draft: Welch's t-test
Hajo ?	2014-11-18 - Draft: One-time pad
Hamstar ?	2008-08-10 - Task: Active Directory/Connect 2008-08-06 - Task: Active Directory/Search for a user
Hansoft ?	2015-01-04 - Draft: Sorting Algorithms/Circle Sort
Hippyman ?	2016-08-21 - Draft: Color wheel
Hircus ?	2009-10-24 - Task: Stair-climbing puzzle
Hout ?	2017-05-29 - Task: Cartesian product of two or more lists 2016-02-01 - Draft: Monads/Writer monad 2016-12-06 - Task: Water collected between towers
Hsnarula ?	2013-04-16 - Task: Find the last Sunday of each month
IanOsgood ?	2009-05-26 - Task: Memory allocation 2007-10-03 - Task: Sorting algorithms/Quicksort
Infogulch ?	2009-07-21 - Task: Sudoku
Isrunt ?	2014-08-11 - Draft: File extension is in extensions list
Jfd34 ?	2013-12-19 - Task: The Twelve Days of Christmas
Jgfoot ?	2017-02-04 - Task: Parallel Brute Force
Jhuni ?	2011-01-02 - Task: Enforced immutability
Jimbojw ?	2007-08-03 - Task: Date format
JimD ?	2007-11-20 - Task: Rot-13 2007-10-22 - Task: Secure temporary file
JimTheriot ?	2015-08-02 - Draft: Chebyshev coefficients 2015-07-31 - Draft: Particle Swarm Optimization 2015-06-30 - Draft: Weather Routing
Jking ?	2014-01-08 - Task: ABC Problem
Jrslepak ?	2007-05-08 - Task: Doubly-linked list/Element definition 2007-07-05 - Task: Doubly-linked list/Element insertion
Jwilkins ?	2007-09-18 - Task: Add a variable to a class instance at runtime
Kentros ?	2017-08-14 - Draft: Word count
Kernigh ?	2011-06-12 - Task: Caesar cipher 2012-01-30 - Task: Conjugate transpose 2011-09-18 - Task: Deal cards for FreeCell 2011-05-16 - Task: DNS query 2012-01-02 - Task: Empty directory 2011-11-13 - Task: Even or odd 2012-03-19 - Task: Identity matrix 2011-05-19 - Task: Jump anywhere 2011-03-30 - Task: Least common multiple 2011-09-18 - Task: Letter frequency 2011-06-30 - Task: Linear congruential generator 2012-03-26 - Task: MD4 2011-12-18 - Task: Modular exponentiation 2011-10-09 - Task: Return multiple values 2012-03-29 - Task: RIPEMD-160 2011-09-16 - Task: Set 2012-01-18 - Task: SHA-1 2011-08-02 - Task: Subtractive generator
Kevin Reid ?	2009-05-16 - Task: Atomic updates 2007-08-18 - Task: Distributed programming 2009-01-29 - Task: Multiple distinct objects 2009-05-24 - Task: Optional parameters 2009-06-11 - Task: Play recorded sounds 2009-01-05 - Task: Queue/Usage 2010-06-29 - Task: Read entire file 2009-02-07 - Task: Rosetta Code/Find unimplemented tasks 2009-02-17 - Task: Runtime evaluation 2009-02-17 - Task: Runtime evaluation/In an environment 2009-12-14 - Task: Stem-and-leaf plot 2009-07-03 - Task: Variables
Kipb ?	2007-02-11 - Task: Formatted numeric output 2007-02-11 - Task: String case
Krauss ?	2017-07-13 - Draft: Base58Check encoding
Kwhitefoot ?	2016-10-27 - Draft: Singly-linked list/Element removal
Kzh ?	2012-09-18 - Task: Catamorphism
Lambertdw ?	2011-01-19 - Task: Sorting algorithms/Radix sort
Learneroo ?	2014-01-08 - Draft: Input/Output for Lines of Text 2013-12-04 - Draft: Input/Output for Pairs of Numbers
Ledrug ?	2011-11-01 - Task: Balanced ternary 2011-08-11 - Task: Color quantization 2011-10-27 - Task: Count the coins 2011-10-08 - Task: Cut a rectangle 2011-07-03 - Task: Draw a clock 2011-09-28 - Draft: IPC via named pipe 2012-10-27 - Task: Josephus problem 2015-05-06 - Draft: List rooted trees 2011-11-03 - Task: Odd word problem 2011-08-04 - Task: Priority queue 2011-06-28 - Task: Pythagorean triples 2011-08-21 - Task: Resistor mesh 2011-09-30 - Task: Set of real numbers 2011-07-02 - Task: Statistics/Basic 2011-07-27 - Task: Statistics/Normal distribution 2011-06-30 - Task: Unicode strings 2012-09-01 - Task: Visualize a tree
Legrady ?	2016-09-07 - Draft: File size distribution
Lrq3000 ?	2015-06-05 - Draft: Polynomial synthetic division
Lupus ?	2008-12-11 - Task: Factors of a Mersenne number 2008-11-27 - Task: Roots of a quadratic function 2008-11-21 - Task: Sorting algorithms/Selection sort
MagiMaster ?	2011-11-07 - Task: Mad Libs 2011-06-07 - Draft: Morpion solitaire 2014-04-02 - Draft: Recursive descent parser generator 2011-05-27 - Task: Sokoban 2011-06-06 - Task: Straddling checkerboard 2011-05-31 - Task: Vigenère cipher 2011-05-31 - Task: Vigenère cipher/Cryptanalysis
Magnus ?	2017-08-24 - Draft: Finite state machine
Mahaju ?	2011-12-20 - Draft: Montgomery reduction
MainframeFossil ?	2014-04-10 - Task: Get system command output
Markhobley ?	2013-02-23 - Draft: Audio frequency generator 2011-07-06 - Task: Binary digits 2011-07-15 - Task: Call a function 2011-02-07 - Task: Case-sensitivity of identifiers 2013-02-22 - Draft: Code segment unload 2011-05-22 - Task: Colour bars/Display 2011-05-22 - Task: Colour pinstripe/Display 2011-05-22 - Task: Colour pinstripe/Printer 2011-06-05 - Task: Count in octal 2011-03-29 - Task: Death Star 2010-12-13 - Task: Draw a cuboid 2011-03-25 - Task: Draw a sphere 2011-07-04 - Task: Empty string 2011-07-17 - Task: Function prototype 2010-10-30 - Task: Globally replace text in several files 2011-05-22 - Task: Greyscale bars/Display 2010-10-28 - Task: Guess the number 2010-11-23 - Task: GUI/Maximum window dimensions 2010-10-03 - Task: Hello world/Line printer 2011-07-25 - Task: Hello world/Newline omission 2011-05-14 - Task: Here document 2011-05-25 - Task: Honeycombs 2011-05-29 - Task: Include a file 2011-05-30 - Task: Inverted syntax 2011-05-23 - Task: Joystick position 2010-10-07 - Task: Keyboard input/Flush the keyboard buffer 2010-10-07 - Task: Keyboard input/Keypress check 2010-10-08 - Task: Keyboard input/Obtain a Y or N response 2011-09-07 - Task: Metronome 2013-03-22 - Draft: Musical scale 2013-02-21 - Task: Nautical bell 2011-03-25 - Task: Pi 2011-05-22 - Task: Pinstripe/Display 2011-05-22 - Task: Pinstripe/Printer 2011-10-08 - Task: Pragmatic directives 2011-02-10 - Task: Read a configuration file 2013-03-17 - Draft: Read a file character by character/UTF8 2011-04-03 - Task: Read a file line by line 2011-07-12 - Task: Read a specific line from a file 2011-07-12 - Task: Remove lines from a file 2013-02-18 - Task: Scope/Function names and labels 2011-06-02 - Task: Special variables 2011-07-12 - Task: Start from a main routine 2013-02-22 - Task: String comparison 2011-06-05 - Task: Strip a set of characters from a string 2010-10-30 - Task: Strip comments from a string 2011-06-05 - Task: Strip control codes and extended characters from a string 2011-06-04 - Task: Strip whitespace from a string/Top and tail 2011-06-05 - Task: Substring/Top and tail 2010-10-04 - Task: Terminal control/Clear the screen 2011-09-06 - Task: Terminal control/Coloured text 2011-07-07 - Task: Terminal control/Cursor movement 2010-10-04 - Task: Terminal control/Cursor positioning 2010-10-05 - Task: Terminal control/Dimensions 2010-10-26 - Task: Terminal control/Display an extended character 2010-10-26 - Task: Terminal control/Hiding the cursor 2010-10-26 - Task: Terminal control/Inverse video 2010-10-04 - Task: Terminal control/Positional read 2011-03-20 - Task: Terminal control/Preserve screen 2013-02-10 - Draft: Terminal control/Restricted width positional input/No wrapping 2013-02-10 - Draft: Terminal control/Restricted width positional input/With wrapping 2011-09-11 - Task: Terminal control/Unicode output 2011-07-19 - Task: Truncate a file 2011-05-20 - Task: Update a configuration file 2011-06-16 - Task: URL decoding 2011-06-16 - Task: URL encoding 2011-04-04 - Draft: Using a Speech engine to highlight words 2011-06-06 - Task: Video display modes 2011-07-12 - Draft: Waveform analysis/Doh ray me 2011-09-09 - Draft: Waveform analysis/Top and tail 2010-12-15 - Task: Write language name in 3D ASCII
Markjreed ?	2017-01-27 - Task: Chinese zodiac 2011-05-27 - Task: Knight's tour 2015-04-27 - Task: Subleq
Marshmallows ?	2008-03-23 - Task: Amb 2008-04-11 - Task: Loops/For 2008-04-11 - Task: Loops/Infinite
Masak ?	2013-01-03 - Task: Average loop length 2011-02-20 - Task: Balanced brackets
Mathaddict ?	2010-04-08 - Task: A+B
Matthias ?	2008-03-27 - Task: Dragon curve
Mbishop ?	2009-05-20 - Task: Knuth shuffle
Mcandre ?	2011-03-03 - Draft: Modulinos 2011-08-06 - Draft: Multiline shebang 2011-08-06 - Draft: Parse command-line arguments 2011-08-09 - Task: Pick random element 2011-08-05 - Task: Program name
MichaelChrisco ?	2010-08-25 - Task: Sorting algorithms/Bead sort
Mikachu ?	2011-05-09 - Task: Roman numerals/Decode
Mikymaione ?	2017-02-05 - Draft: Kosaraju 2017-02-04 - Draft: Tarjan
Mischief ?	2014-06-12 - Draft: Sorting algorithms/Cycle sort
Mogmios ?	2011-01-20 - Draft: VList
Mroman ?	2013-02-21 - Task: Entropy
Mwn3d ?	2008-02-28 - Task: 99 Bottles of Beer 2008-09-23 - Task: Ackermann function 2008-03-08 - Task: Arithmetic/Complex 2009-09-09 - Task: Array concatenation 2009-02-04 - Task: Assertions 2007-11-08 - Task: Binary search 2007-11-18 - Task: Bitwise operations 2015-04-26 - Draft: Card shuffles 2011-02-11 - Task: Catalan numbers 2008-02-17 - Task: Detect division by zero 2009-09-03 - Task: Documentation 2008-05-04 - Task: Execute SNUSP 2008-02-29 - Task: Fibonacci sequence 2010-10-22 - Task: Five weekends 2011-03-16 - Task: Gray code 2009-01-07 - Task: Hello world/Standard error 2009-03-26 - Task: Huffman coding 2008-04-27 - Task: Inheritance/Single 2008-02-17 - Task: Input loop 2008-05-07 - Task: Longest common subsequence 2009-06-05 - Task: Loops/Break 2008-04-21 - Task: Loops/Continue 2008-04-14 - Task: Loops/Do-while 2008-04-13 - Task: Loops/Foreach 2008-04-11 - Task: Loops/While 2007-11-19 - Task: MD5 2008-09-24 - Task: Monte Carlo methods 2008-07-30 - Task: Null object 2007-12-21 - Task: Numerical integration 2009-10-07 - Task: Parametrized SQL statement 2008-06-23 - Task: Pascal's triangle 2008-08-22 - Task: Perfect numbers 2007-11-20 - Task: Primality by trial division 2008-02-05 - Task: Prime decomposition 2008-04-21 - Task: Program termination 2007-11-09 - Task: Quine 2008-05-07 - Task: Real constants and functions 2009-01-21 - Task: Reduced row echelon form 2009-02-09 - Task: Rosetta Code/Count examples 2009-06-10 - Task: Scope modifiers 2011-08-08 - Task: Show the epoch 2007-12-11 - Task: Sleep 2008-11-25 - Task: Sorting algorithms/Cocktail sort 2007-11-11 - Task: Sorting algorithms/Insertion sort 2008-02-05 - Task: Sorting algorithms/Merge sort 2010-07-24 - Task: Sorting algorithms/Stooge sort 2008-12-17 - Task: String concatenation 2008-01-19 - Task: String length 2007-12-03 - Task: Sum and product of an array 2008-01-23 - Task: System time 2008-01-05 - Task: Trigonometric functions 2009-07-08 - Task: User input/Graphical 2009-07-08 - Task: User input/Text 2008-06-01 - Task: Variadic function 2014-06-18 - Task: World Cup group stage
Namanyayg ?	2014-12-27 - Draft: Using the Meetup.com API
NevilleDNZ ?	2011-08-27 - Draft: Addition-chain exponentiation 2011-09-12 - Task: Append a record to the end of a text file 2009-02-13 - Task: Arithmetic/Rational 2013-02-24 - Draft: Banker's algorithm 2013-06-04 - Draft: Birthday problem 2011-05-30 - Task: Calendar 2011-05-31 - Task: Calendar - for "REAL" programmers 2013-04-14 - Task: Combinations and permutations 2013-04-02 - Task: Currying 2008-02-19 - Task: Exponentiation operator 2011-12-07 - Draft: Find first and last set bit of a long integer 2011-10-28 - Draft: Generalised floating point addition 2011-10-30 - Draft: Generalised floating point multiplication 2007-12-17 - Task: Greatest common divisor 2008-02-12 - Task: Hello world/Graphical 2010-06-29 - Task: Holidays related to Easter 2010-06-24 - Task: Horizontal sundial calculations 2013-04-23 - Draft: Implicit type conversion 2008-11-21 - Task: Jensen's Device 2013-12-15 - Draft: Just in time processing on a character stream 2008-02-14 - Task: Lucas-Lehmer test 2007-12-18 - Task: Man or boy test 2008-02-07 - Task: Matrix transposition 2008-02-19 - Task: Matrix-exponentiation operator 2009-12-05 - Task: Multiplication tables 2015-09-19 - Task: Naming conventions 2013-09-03 - Draft: Native shebang 2008-09-27 - Task: Number names 2012-08-17 - Task: Operator precedence 2013-04-26 - Draft: Permutations with repetitions 2012-10-05 - Draft: Reverse the gender of a string 2008-09-28 - Task: Search a list 2014-03-30 - Draft: Sorting algorithms/Tree sort on a linked list 2013-10-03 - Task: String append 2013-10-03 - Task: String prepend 2011-08-26 - Task: Ternary logic 2010-10-02 - Task: Thiele's interpolation formula 2011-11-17 - Draft: Unicode polynomial equation 2011-09-13 - Draft: User defined pipe and redirection operators
Nigel Galloway ?	2013-04-27 - Task: 9 billion names of God the integer 2012-02-06 - Task: Arithmetic-geometric mean 2014-01-12 - Task: Arithmetic-geometric mean/Calculate Pi 2013-07-01 - Draft: Blackjack strategy 2012-11-30 - Task: Carmichael 3 strong pseudoprimes 2012-06-24 - Task: Casting out nines 2013-04-26 - Task: Catalan numbers/Pascal's triangle 2014-09-16 - Draft: Combinations with repetitions/Square Digit Chain 2012-02-27 - Task: Continued fraction 2013-02-04 - Task: Continued fraction/Arithmetic/Construct from rational number 2013-02-06 - Draft: Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N) 2013-02-12 - Draft: Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2) 2012-07-20 - Task: Digital root 2013-07-12 - Task: Fibonacci word 2013-07-15 - Task: Fibonacci word/fractal 2012-09-15 - Task: Find largest left truncatable prime in a given base 2012-01-07 - Draft: Ramsey's theorem 2012-01-12 - Task: Solve a Hidato puzzle 2014-06-01 - Task: Solve a Holy Knight's tour 2014-05-30 - Task: Solve a Hopido puzzle 2014-05-30 - Task: Solve a Numbrix puzzle 2012-07-19 - Task: Sum digits of an integer 2015-02-03 - Task: Textonyms 2015-02-20 - Draft: Ukkonen’s Suffix Tree Construction 2013-09-01 - Task: Vogel's approximation method 2012-10-29 - Task: Zeckendorf arithmetic
Nirs ?	2007-10-03 - Task: Delegates 2007-11-04 - Task: Queue/Definition
Old man ?	2015-02-23 - Task: Primes - allocate descendants to their ancestors
Oligomous ?	2009-08-15 - Task: Factors of an integer 2009-08-05 - Task: Substring
Outis ?	2016-07-22 - Task: Reflection/Get source 2016-07-23 - Draft: Reflection/List methods 2016-07-24 - Task: Reflection/List properties
P3cox ?	2017-07-02 - Draft: Fibonacci heap
Paddy3118 ?	2009-10-31 - Task: 24 game 2009-11-01 - Task: 24 game/Solve 2014-12-16 - Task: Abundant, deficient and perfect number classifications 2014-02-06 - Task: AKS test for primes 2008-11-16 - Task: Align columns 2014-12-18 - Task: Aliquot sequence classifications 2014-02-21 - Task: Almost prime 2014-12-16 - Task: Amicable pairs 2008-09-24 - Task: Anagrams 2011-05-14 - Task: Anagrams/Deranged anagrams 2010-02-13 - Task: Arbitrary-precision integers (included) 2012-07-09 - Task: Averages/Mean angle 2012-07-10 - Task: Averages/Mean time of day 2010-02-20 - Task: Averages/Pythagorean means 2010-02-20 - Task: Averages/Root mean square 2009-06-17 - Task: Averages/Simple moving average 2011-03-27 - Task: Box the compass 2011-08-06 - Task: Break OO privacy 2009-05-03 - Task: Bulls and cows 2010-06-13 - Task: Bulls and cows/Player 2013-04-16 - Task: Circles of given radius through two points 2013-10-06 - Task: Comma quibbling 2008-10-10 - Task: Conway's Game of Life 2010-11-13 - Task: CSV to HTML translation 2008-12-12 - Task: Day of the week 2014-04-11 - Task: Digital root/Multiplicative digital root 2011-06-25 - Task: Dinesman's multiple-dwelling problem 2010-02-24 - Task: Dot product 2012-07-01 - Task: Dutch national flag problem 2017-08-07 - Task: Egyptian division 2009-07-23 - Task: Ethiopian multiplication 2015-04-14 - Task: Euler's sum of powers conjecture 2009-10-06 - Task: Evolutionary algorithm 2009-03-07 - Task: Exceptions/Catch an exception thrown in a nested call 2011-03-14 - Task: Executable library 2014-03-26 - Task: Extensible prime generator 2010-07-15 - Task: Extreme floating point values 2012-05-24 - Task: Fibonacci n-step number sequences 2010-03-23 - Task: Find common directory path 2009-02-24 - Task: First-class functions 2009-08-05 - Task: First-class functions/Use numbers analogously 2009-08-16 - Task: Flatten a list 2013-07-10 - Task: Flipping bits game 2012-06-24 - Task: Floyd's triangle 2009-03-03 - Task: Function composition 2015-08-12 - Draft: Functional coverage tree 2010-10-29 - Task: Guess the number/With feedback 2010-10-29 - Task: Guess the number/With feedback (player) 2010-03-08 - Task: Hailstone sequence 2009-12-02 - Task: Hamming numbers 2013-03-25 - Task: Harshad or Niven series 2011-11-06 - Task: Hello world/Newbie 2015-01-03 - Task: Heronian triangles 2014-01-01 - Task: Hickerson series of almost integers 2011-10-22 - Task: Hofstadter Figure-Figure sequences 2011-10-23 - Task: Hofstadter Q sequence 2010-03-09 - Task: Hofstadter-Conway $10,000 sequence 2010-03-31 - Task: Horner's rule for polynomial evaluation 2013-01-03 - Task: I before E except after C 2009-02-21 - Task: Interactive programming 2014-12-11 - Draft: Kahan summation 2011-06-07 - Task: Kaprekar numbers 2008-12-02 - Task: Knapsack problem/Unbounded 2011-10-21 - Task: Knuth's algorithm S 2013-04-03 - Task: Largest int from concatenated ints 2009-02-01 - Task: Literals/Integer 2013-08-16 - Task: Longest increasing subsequence 2009-04-04 - Task: Look-and-say sequence 2014-03-15 - Task: Ludic numbers 2010-03-02 - Task: Luhn test of credit card numbers 2015-08-29 - Task: Lychrel numbers 2009-06-03 - Task: Menu 2013-02-02 - Task: Middle three digits 2010-07-10 - Task: Minesweeper game 2008-08-05 - Task: Monty Hall problem 2014-05-20 - Task: Move-to-front algorithm 2015-01-09 - Draft: Multi-dimensional array 2012-11-13 - Task: Multifactorial 2009-04-09 - Task: Mutual recursion 2014-03-15 - Task: N'th 2014-03-06 - Task: Narcissistic decimal number 2011-04-23 - Task: Natural sorting 2009-01-31 - Task: Non-decimal radices/Output 2014-04-04 - Task: Nonoblock 2010-04-03 - Task: Number reversal game 2011-07-30 - Task: Numeric error propagation 2011-09-07 - Task: One of n lines in a file 2008-10-08 - Task: One-dimensional cellular automata 2014-05-04 - Task: Order disjoint list items 2010-11-09 - Task: Ordered words 2010-01-25 - Task: Pangram checker 2011-12-03 - Task: Parsing/RPN calculator algorithm 2011-12-03 - Task: Parsing/RPN to infix conversion 2011-12-02 - Task: Parsing/Shunting-yard algorithm 2011-03-25 - Task: Partial function application 2015-04-15 - Task: Pascal matrix generation 2014-09-27 - Task: Penney's game 2013-08-07 - Task: Percolation/Bond percolation 2013-08-10 - Task: Percolation/Mean cluster density 2013-08-10 - Task: Percolation/Mean run density 2013-08-09 - Task: Percolation/Site percolation 2012-07-24 - Task: Permutations by swapping 2011-05-14 - Task: Permutations/Derangements 2012-10-25 - Task: Permutations/Rank of a permutation 2014-11-13 - Task: Phrase reversals 2012-09-12 - Task: Pig the dice game 2012-09-14 - Task: Pig the dice game/Player 2008-11-17 - Task: Probabilistic choice 2014-12-16 - Draft: Proper divisors 2010-08-02 - Task: Quaternion type 2013-09-28 - Task: Quickselect algorithm 2010-01-23 - Task: Random number generator (included) 2010-07-15 - Task: Range expansion 2010-07-15 - Task: Range extraction 2014-07-05 - Task: Ranking methods 2013-05-10 - Task: Rep-string 2015-05-01 - Task: Sailors, coconuts and a monkey problem 2009-07-01 - Task: Send email 2008-08-24 - Task: Sequence of non-squares 2015-06-13 - Draft: Sequence of primorial primes 2012-05-07 - Task: Set consolidation 2009-08-08 - Task: Seven-sided dice from five-sided dice 2017-08-09 - Task: Shoelace formula for polygonal area 2010-07-24 - Task: Short-circuit evaluation 2014-10-04 - Task: Solve the no connection puzzle 2011-02-12 - Task: Sort disjoint sublist 2009-06-06 - Task: Sort stability 2013-06-17 - Task: Sparkline in unicode 2008-08-05 - Task: Spiral matrix 2010-08-05 - Task: Stable marriage problem 2014-12-07 - Task: Stern-Brocot sequence 2010-01-30 - Task: String interpolation (included) 2014-11-14 - Draft: Superpermutation minimisation 2009-05-28 - Task: Test a function 2008-11-08 - Task: Text processing/1 2008-11-13 - Task: Text processing/2 2008-10-03 - Task: Text processing/Max licenses in use 2011-02-04 - Task: Tic-tac-toe 2009-07-03 - Task: Topological sort 2010-10-06 - Draft: Topological sort/Extracted top item 2012-11-22 - Task: Topswops 2012-05-22 - Task: Trabb Pardo–Knuth algorithm 2010-09-08 - Task: Truncatable primes 2011-10-31 - Task: Truth table 2011-02-22 - Task: Unbias a random generator 2011-07-01 - Task: Unicode variable names 2011-03-10 - Task: Van der Corput sequence 2011-04-09 - Task: Vector products 2009-08-08 - Task: Verify distribution uniformity/Naive 2008-08-20 - Task: Web scraping 2009-02-28 - Task: Y combinator 2011-04-02 - Task: Yin and yang 2012-10-10 - Task: Zeckendorf number representation 2013-10-13 - Task: Zhang-Suen thinning algorithm
Paul ?	2015-05-27 - Draft: Linux CPU utilization
Paul.chernoch ?	2016-02-25 - Draft: Cycle detection
Paulo Jorente ?	2017-07-10 - Task: 15 puzzle solver 2015-09-04 - Draft: Bacon cipher 2017-07-05 - Draft: Black Box 2014-02-02 - Draft: Decimal floating point number to binary 2016-04-13 - Draft: Greed 2015-06-05 - Draft: Hexapawn 2016-06-25 - Draft: Markov chain text generator 2016-10-31 - Draft: Mastermind 2013-05-10 - Draft: Playfair cipher 2016-04-14 - Draft: Robots 2016-04-09 - Task: Smith numbers 2016-12-02 - Draft: Snake And Ladder 2015-12-01 - Draft: Tamagotchi emulator
Pelci ?	2010-11-16 - Task: Combinations with repetitions 2010-02-14 - Task: Knapsack problem/0-1 2010-02-14 - Task: Knapsack problem/Bounded 2010-02-24 - Task: Knapsack problem/Continuous 2010-10-02 - Task: Permutations
Pirho ?	2012-02-11 - Task: Gaussian elimination
Pistacchio ?	2015-05-07 - Task: Hunt The Wumpus
Proton ?	2016-10-05 - Draft: External sort
Rainb ?	2013-08-26 - Draft: Base64 encode data
Ralph ?	2007-08-12 - Task: Sort an array of composite structures
RasF ?	2010-08-11 - Task: Problem of Apollonius
Raslbg ?	2017-05-29 - Draft: Data Encryption Standard
Razerwolf ?	2013-06-10 - Draft: Bilinear interpolation
Rdm ?	2016-02-06 - Task: 15 Puzzle Game 2015-06-01 - Draft: Convex hull 2011-10-25 - Draft: OpenGL Pixel Shader
Rob.s.brit ?	2010-04-27 - Task: Brownian tree 2009-12-15 - Task: Execute a Markov algorithm 2010-05-04 - Task: Fractal tree 2009-06-29 - Task: Multiple regression
Roger Hui ?	2007-12-11 - Task: Averages/Arithmetic mean 2007-12-08 - Task: Combinations 2007-12-08 - Task: Multiplicative order 2007-12-13 - Task: Roots of unity 2007-12-11 - Task: Sum of squares
Roland Illig ?	2016-09-17 - Task: Nested function
Sanaris ?	2014-04-15 - Draft: N-body problem
Sceiler ?	2015-05-04 - Draft: Extract file extension
Senyotzyabin ?	2013-05-14 - Task: Sum multiples of 3 and 5
Sgeier ?	2007-02-03 - Task: Hostname 2007-03-15 - Task: Introspection 2007-02-20 - Task: Simple windowed application
Shedai ?	2014-03-23 - Draft: Most frequent k chars distance
ShinTakezou ?	2009-04-14 - Task: Binary strings 2009-02-18 - Task: Bitmap/Flood fill 2008-12-11 - Task: Bitmap/Read an image through a pipe 2008-12-19 - Task: Bitwise IO 2009-03-06 - Task: Call a function in a shared library 2009-05-06 - Task: Closest-pair problem 2010-07-12 - Task: Forest fire 2010-06-15 - Task: Four bit adder 2009-03-05 - Task: Gamma function 2009-04-29 - Task: Miller–Rabin primality test 2009-07-31 - Task: Nth root 2008-12-05 - Task: Palindrome detection 2009-06-17 - Task: Polynomial long division 2009-05-23 - Task: Ray-casting algorithm 2009-05-19 - Task: Sorting algorithms/Counting sort 2009-04-27 - Task: Sorting algorithms/Gnome sort 2009-03-06 - Task: Xiaolin Wu's line algorithm
Short Circuit ?	2007-01-25 - Task: Conditional structures 2010-12-23 - Task: Count in factors 2007-01-18 - Task: Empty program 2007-01-25 - Task: Exceptions 2007-02-01 - Task: Execute a system command 2007-11-28 - Task: Execute Brain**** 2007-01-09 - Task: File input/output 2009-12-24 - Task: Find the missing permutation 2007-01-25 - Task: Flow-control structures 2008-06-01 - Task: Greatest element of a list 2007-01-09 - Task: Hello world/Text 2011-02-13 - Task: Integer sequence 2007-11-26 - Task: JSON 2009-02-25 - Task: Long multiplication 2010-11-25 - Task: Map range 2011-08-15 - Task: Old lady swallowed a fly 2011-09-25 - Task: Parse an IP Address 2009-12-05 - Task: Rate counter 2008-09-11 - Task: RCRPG 2010-02-15 - Draft: Remote agent/Agent interface 2010-02-15 - Draft: Remote agent/Agent logic 2010-02-15 - Draft: Remote agent/Simulation 2011-07-04 - Task: Rock-paper-scissors 2008-02-22 - Task: Roots of a function 2012-09-02 - Draft: Rosetta Code/List authors of task descriptions 2008-02-05 - Task: Singleton 2007-03-19 - Task: Singly-linked list/Element definition 2007-03-20 - Task: Singly-linked list/Element insertion 2008-02-22 - Task: Sum of a series 2009-12-02 - Task: Symmetric difference 2007-01-14 - Draft: Table creation 2009-11-28 - Task: Undefined values 2007-01-28 - Task: Walk a directory/Recursively
Simplex ?	2017-05-22 - Task: Department Numbers
Siskus ?	2014-08-20 - Draft: Assertions in design by contract 2014-06-09 - Draft: Separate the house number from the street name 2014-07-27 - Draft: Starting a web browser
Sluggo ?	2010-02-21 - Task: Deconvolution/1D 2010-02-23 - Task: Deconvolution/2D+ 2011-02-01 - Task: Permutation test 2012-01-01 - Draft: Subset sum problem
Smarmius ?	2011-07-19 - Task: Voronoi diagram
Smls ?	2014-01-25 - Task: Brace expansion 2014-06-26 - Task: Compare a list of strings 2015-06-06 - Task: Convert seconds to compound duration 2014-06-24 - Task: Tokenize a string with escaping
Sonia ?	2014-01-02 - Draft: Currency 2011-06-30 - Task: Hello world/Web server 2012-03-06 - Task: K-d tree 2011-06-16 - Task: Sorting algorithms/Sleep sort 2012-03-27 - Task: Word wrap
Sothach ?	2015-03-19 - Draft: Longest common prefix
Spekkio ?	2011-11-29 - Task: CRC-32 2011-11-25 - Task: Munching squares
Spintronic ?	2014-11-03 - Draft: XML Validation
Spoon! ?	2009-08-03 - Task: Associative array/Iteration 2008-11-17 - Task: Character codes 2011-07-20 - Task: Closures/Value capture 2011-06-16 - Task: Count occurrences of a substring 2008-12-23 - Task: Environment variables 2013-08-21 - Draft: Sorting algorithms/Patience sort
Star651 ?	2011-07-26 - Draft: Audio Overlap Loop 2011-07-21 - Draft: AudioAlarm
Stone ?	2007-02-02 - Task: Tokenize a string
Sxpert ?	2012-07-09 - Draft: OpenWebNet Password
TBH ?	2007-12-14 - Task: Forward difference
TheWombat ?	2015-02-23 - Task: Validate International Securities Identification Number
Thundergnat ?	2013-05-03 - Task: Benford's law 2017-09-27 - Draft: Four is magic 2017-02-12 - Draft: Imaginary base numbers 2017-09-01 - Draft: Largest number divisible by its digits 2016-02-22 - Task: Pathological floating point problems 2011-08-21 - Task: Self-referential sequence
Til ?	2007-01-24 - Task: Regular expressions
TimSC ?	2016-12-18 - Draft: A* search algorithm 2016-12-16 - Task: Angle difference between two bearings 2016-12-16 - Task: Apply a digital filter (direct form II transposed) 2016-12-16 - Draft: Determine if two triangles overlap 2016-12-15 - Draft: Eertree 2016-12-16 - Task: Find the intersection of a line with a plane 2016-12-16 - Task: Find the intersection of two lines 2016-12-16 - Task: Negative base numbers 2016-12-16 - Task: Ramer-Douglas-Peucker line simplification
TimToady ?	2012-08-14 - Task: Same Fringe 2012-09-20 - Task: Twelve statements
Tinku99 ?	2009-05-27 - Task: Color of a screen pixel 2009-06-02 - Task: Dynamic variable names 2010-04-20 - Task: Inverted index 2009-05-27 - Task: Keyboard macros 2009-05-27 - Task: Mouse position 2011-07-24 - Task: OLE Automation 2010-06-12 - Draft: Parse EBNF 2009-06-02 - Task: Simulate input/Keyboard 2009-05-26 - Task: Simulate input/Mouse 2009-05-27 - Task: Window management
TobyK ?	2012-11-08 - Task: Check Machin-like formulas 2015-05-18 - Draft: Chess player/Move generation 2015-05-18 - Draft: Chess player/Program options and user interface 2015-05-18 - Draft: Chess player/Search and evaluation 2013-04-10 - Draft: Find duplicate files 2016-04-24 - Task: Password generator
Toucanbird ?	2017-02-11 - Task: CUSIP 2013-03-31 - Task: IBAN 2013-03-17 - Draft: NYSIIS 2014-09-21 - Draft: Time-based One-time Password Algorithm
Trizen ?	2016-01-23 - Draft: Arithmetic coding/As a generalized change of radix 2016-01-28 - Task: Cramer's rule 2016-01-10 - Draft: Faulhaber's formula 2017-06-05 - Draft: Faulhaber's triangle 2016-02-01 - Task: Jaro distance 2016-03-30 - Draft: Snake
Ttmrichter ?	2013-02-04 - Task: Universal Turing machine
Umariani ?	2016-07-07 - Task: Sort a list of object identifiers
Underscore ?	2009-11-27 - Task: Go Fish 2010-11-14 - Task: Metaprogramming
Vcelier ?	2007-01-21 - Task: Sorting algorithms/Bubble sort
Vilipetek ?	2013-06-20 - Task: CSV data manipulation
Waldorf ?	2007-02-27 - Task: Address of a variable 2007-02-06 - Task: Concurrent computing 2007-02-27 - Task: Define a primitive data type 2007-09-07 - Task: Generic swap 2008-12-23 - Task: Handle a signal 2007-02-27 - Task: Memory layout of a data structure 2007-02-09 - Task: Metered concurrency 2007-03-09 - Task: Object serialization 2008-04-27 - Task: Playing cards 2008-04-01 - Task: Roman numerals/Encode 2007-02-09 - Task: Synchronous concurrency 2007-02-27 - Task: Variable size/Get 2007-02-27 - Task: Variable size/Set
Walterpachl ?	2015-04-27 - Draft: Selective File Copy
Wei2912 ?	2015-03-08 - Task: General FizzBuzz 2014-06-05 - Task: Unix/ls
WillNess ?	2014-09-13 - Task: Sequence of primes by Trial Division 2011-12-02 - Task: Zebra puzzle
Wmeyer ?	2010-01-25 - Task: Compile-time calculation
Wolfram ?	2011-02-08 - Task: Fast Fourier transform
Wsg ?	2014-02-20 - Task: Semiprime
Xenoker ?	2012-03-15 - Task: Runge-Kutta method
Xkrouhn ?	2011-06-11 - Task: Convert decimal number to rational 2011-05-08 - Task: Self-describing numbers
Yuriy Chumak ?	2016-01-12 - Draft: OpenGL/Utah Teapot
Zelah ?	2016-05-10 - Draft: Integer roots 2014-05-02 - Draft: Self-hosting compiler
Zorro1024 ?	2015-04-16 - Task: Perfect shuffle 2015-03-21 - Draft: Vector
Zzo38 ?	2015-09-20 - Task: Thue-Morse
Русский ?	2012-08-31 - Task: Main step of GOST 28147-89 2013-01-09 - Draft: Old Russian measure of length 2013-05-24 - Draft: Transportation problem

Perl 6

Works with: Rakudo version 2017.11

The pseudocode above is no longer really useful as the page format has changed significantly since this task was written. Rather than checking every edit to see if it was a change to the task description, we'll just assume the user that created the page is the task author. This isn't 100% accurate; a very few pages got renamed and recreated by someone other than the original author without preserving the history, so they are misreported (15 Puzzle Game for instance,) but is as good as it is likely to get without extensive manual intervention. Subsequent edits to the task description are not credited. As it is, we must still make thousands of requests and pound the server pretty hard. Checking every edit would make the task several of orders of magnitude more abusive of the server (and my internet connection.)

<lang perl6>use HTTP::UserAgent; use URI::Escape; use JSON::Fast; use Sort::Naturally;

Friendlier descriptions for task categories

my %cat = (

   'Programming_Tasks' => 'Task: ',
   'Draft_Programming_Tasks' => 'Draft:'

);

my $client = HTTP::UserAgent.new;

my $url = 'http://rosettacode.org/mw';

my $htmlfile = './RC_Authors.html'; my $hashfile = './RC_Authors.json';

my %tasks;

clear screen

run($*DISTRO.is-win ?? 'cls' !! 'clear');

=begin update

note 'Retreiving task information...';

for %cat.keys -> $category {

   mediawiki-query(
       $url, 'pages',
       :generator<categorymembers>,
       :gcmtitle("Category:$category"),
       :gcmlimit<350>,
       :rawcontinue(),
       :prop<title>
   ).map({
       mediawiki-query(
           $url, 'pages',
           :titles(.<title>),
           :prop<revisions>,
           :rvprop<user|timestamp>,
           :rvstart<2000-01-01T01:01:01Z>,
           :rvdir<newer>,
           :rvlimit<1>
       )}
   ).map({
       print "\b" x 150, ' ' x 150, "\b" x 150,
         1 + $++, ' ', %cat{$category}, ' ', .[0]<title>;
       %tasks{.[0]<title>}<category> = %cat{$category};
       %tasks{.[0]<title>}<author> = .[0]<revisions>[0]<user>;
       %tasks{.[0]<title>}<date> = .[0]<revisions>[0]<timestamp>.subst(/'T'.+$/, )
       }
   )

}

Save information to a local file

note "\nTask information saved to local file: {$hashfile.IO.absolute}"; $hashfile.IO.spurt(%tasks.&to-json);

=end update

Load information from local file

%tasks = $hashfile.IO.e ?? $hashfile.IO.slurp.&from-json !! ( );

Convert saved task / author info to an HTML table

note "\nBuilding HTML table..."; my $count = +%tasks; my $taskcnt = +%tasks.grep: *.value.<category> eq %cat<Programming_Tasks>; my $draftcnt = $count - $taskcnt;

Dump an HTML table to a file

my $out = open($htmlfile, :w) or die "$!\n";

Add table boilerplate and header

$out.say( '

' );

Get sorted unique list of task authors

for %tasks{*}».<author>.unique.sort(*.&naturally) -> $author {

   # Add author and contributions link to the first cell

$out.print( "' );

}

$out.say( '

As of ', Date.today, ' | Total: ',

 "$count / Tasks: $taskcnt / Draft Tasks: $draftcnt / By {+%tasks{*}».<author>.unique} Authors",

'

User

Authored

$author

?

   # Get list of tasks by this author, sorted by name
   for %tasks.grep( { $_.value.<author> eq $author } ).sort(*.key.&naturally) -> $task {

       # and add the date, status and task link to the list in the second cell

{$task.value.<date>} - {$task.value.<category>}", " [[{uri-escape $task.key}|{$task.key}]]

' );

$out.close;

note "HTML table file saved as: {$htmlfile.IO.absolute}";

sub mediawiki-query ($site, $type, *%query) {

   my $url = "$site/api.php?" ~ uri-query-string(
       :action<query>, :format<json>, :formatversion<2>, |%query);
   my $continue = ;

   gather loop {
       my $response = $client.get("$url&$continue");
       my $data = from-json($response.content);
       take $_ for $data.<query>.{$type}.values;
       $continue = uri-query-string |($data.<query-continue>{*}».hash.hash or last);
   }

}

sub uri-query-string (*%fields) { %fields.map({ "{.key}={uri-escape .value}" }).join("&") } </lang>

Sample output

As of 2017-12-21 \| Total: 1071 / Tasks: 867 / Draft Tasks: 204 / By 247 Authors
User	Authored
2Powers ?	2013-05-16 - Draft: Names to numbers 2013-05-16 - Draft: Solving coin problems
12.175.32.19 ?	2009-11-12 - Task: Soundex
12Me21 ?	2015-05-04 - Task: Draw a rotating cube
Many rows omitted...
Zorro1024	2015-04-16 - Task: Perfect shuffle 2015-03-21 - Draft: Vector
Zzo38	2015-09-20 - Task: Thue-Morse
Русский	2012-08-31 - Task: Main step of GOST 28147-89 2013-01-09 - Draft: Old Russian measure of length 2013-05-24 - Draft: Transportation problem