Rosetta Code/List authors of task descriptions

Rosetta Code/List authors of task descriptions is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.

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:

• https://www.mediawiki.org/wiki/Index.php#Raw
• https://www.mediawiki.org/wiki/Index.php#History
• https://www.mediawiki.org/wiki/API:Main_page

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 2018-03-31 :: Total Tasks: 1080:: Tasks: 871 :: Draft Tasks: 209

Author	Authored
2Powers : 2 tasks	Task Name Date Added Status Names to numbers 2013-05-16 Draft Solving coin problems 2013-05-16 Draft
12.175.32.19 : 1 task	Task Name Date Added Status Soundex 2009-11-12 Task
12Me21 : 1 task	Task Name Date Added Status Draw a rotating cube 2015-05-04 Task
64.131.185.25 : 2 tasks	Task Name Date Added Status Sierpinski carpet 2008-03-14 Task Sierpinski triangle 2008-03-14 Task
66.120.226.84 : 1 task	Task Name Date Added Status Top rank per group 2008-12-03 Task
67.20.197.154 : 1 task	Task Name Date Added Status RSA code 2011-03-24 Task
68.38.195.134 : 1 task	Task Name Date Added Status Zig-zag matrix 2008-08-03 Task
68.175.31.239 : 1 task	Task Name Date Added Status SEDOLs 2008-08-02 Task
69.12.181.181 : 1 task	Task Name Date Added Status Random numbers 2007-04-07 Task
70.83.182.253 : 6 tasks	Task Name Date Added Status 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 2007-04-07 Task
71.205.120.86 : 1 task	Task Name Date Added Status Function definition 2007-09-18 Task
74.56.102.15 : 6 tasks	Task Name Date Added Status Compound data type 2007-02-24 Task Copy a string 2007-02-22 Task Enumerations 2007-02-23 Task Increment a numerical string 2007-02-23 Task Polymorphism 2007-02-23 Task Stack 2007-02-24 Task
74.74.225.216 : 1 task	Task Name Date Added Status Singly-linked list/Traversal 2007-10-30 Task
76.19.46.239 : 1 task	Task Name Date Added Status Non-decimal radices/Convert 2008-03-07 Task
76.91.63.71 : 1 task	Task Name Date Added Status Sorting algorithms/Heapsort 2009-07-17 Task
77.250.119.152 : 1 task	Task Name Date Added Status Haversine formula 2011-12-02 Task
78.35.107.83 : 2 tasks	Task Name Date Added Status Discordian date 2010-07-20 Task Leap year 2010-07-20 Task
78.146.0.60 : 1 task	Task Name Date Added Status Narcissist 2010-09-21 Task
79.54.58.148 : 1 task	Task Name Date Added Status Paraffins 2011-11-30 Task
82.32.24.201 : 1 task	Task Name Date Added Status Aspect Oriented Programming 2011-06-09 Draft
83.104.248.190 : 1 task	Task Name Date Added Status Matrix multiplication 2007-12-09 Task
87.224.129.185 : 1 task	Task Name Date Added Status Canny edge detector 2012-03-05 Task
91.4.78.20 : 1 task	Task Name Date Added Status Ordered Partitions 2011-02-07 Task
96.20.64.30 : 1 task	Task Name Date Added Status Mandelbrot set 2009-03-31 Task
99.105.56.162 : 1 task	Task Name Date Added Status Levenshtein distance 2011-01-10 Task
137.195.250.2 : 2 tasks	Task Name Date Added Status Sorting algorithms/Bogosort 2008-05-07 Task Sorting algorithms/Permutation sort 2008-05-08 Task
142.204.88.102 : 1 task	Task Name Date Added Status Create an HTML table 2011-03-08 Task
145.254.251.66 : 1 task	Task Name Date Added Status List comprehensions 2007-11-07 Task
145.254.251.95 : 1 task	Task Name Date Added Status Pattern matching 2007-11-06 Task
146.201.224.238 : 1 task	Task Name Date Added Status Reverse a string 2008-04-18 Task
155.192.0.234 : 1 task	Task Name Date Added Status Sorting algorithms/Strand sort 2011-05-04 Task
165.124.208.73 : 1 task	Task Name Date Added Status Pythagoras tree 2011-10-28 Task
171.65.33.13 : 1 task	Task Name Date Added Status Command-line arguments 2007-02-13 Task
195.33.114.129 : 1 task	Task Name Date Added Status Sorting algorithms/Shell sort 2008-05-20 Task
200.102.26.6 : 1 task	Task Name Date Added Status HTTP 2008-09-25 Task
201.67.232.39 : 1 task	Task Name Date Added Status Record sound 2010-12-30 Task
207.74.29.206 : 1 task	Task Name Date Added Status Window creation 2007-01-15 Task
209.63.105.137 : 3 tasks	Task Name Date Added Status Associative array/Creation 2007-01-22 Task Fork 2007-02-06 Task Table creation/Postal addresses 2007-01-23 Task
219.77.140.150 : 1 task	Task Name Date Added Status Factorial 2008-08-17 Task
Abu : 13 tasks	Task Name Date Added Status Anonymous recursion 2010-11-23 Task Chat server 2010-12-10 Task Chess player 2012-04-24 Draft Extend your language 2010-08-27 Task First class environments 2011-06-30 Task Function frequency 2011-11-02 Task GUI component interaction 2010-08-23 Task GUI enabling/disabling of controls 2010-08-23 Task Maze generation 2010-12-14 Task Maze solving 2010-12-15 Task Morse code 2010-08-24 Task Parallel calculations 2010-12-15 Task Random number generator (device) 2011-01-11 Task
Adonis : 3 tasks	Task Name Date Added Status Classes 2007-01-27 Task Walk a directory/Non-recursively 2007-01-24 Task XML/DOM serialization 2007-01-24 Task
Akshay : 1 task	Task Name Date Added Status Dijkstra's algorithm 2011-12-08 Draft
AlainD : 2 tasks	Task Name Date Added Status Fractran 2014-01-20 Task URL parser 2015-07-22 Task
Alegend : 1 task	Task Name Date Added Status Evaluate binomial coefficients 2010-04-11 Task
AlexLehm : 1 task	Task Name Date Added Status Langton's ant 2011-10-30 Task
Aloisdg : 4 tasks	Task Name Date Added Status Diversity prediction theorem 2016-12-03 Draft Munchausen numbers 2016-09-22 Task Sattolo cycle 2016-08-29 Draft Two Sum 2016-10-04 Draft
AnatolV : 2 tasks	Task Name Date Added Status Kronecker product 2017-04-05 Task Kronecker product based fractals 2017-04-05 Task
Avi : 7 tasks	Task Name Date Added Status Cholesky decomposition 2011-03-07 Task Element-wise operations 2011-06-08 Task Euler method 2011-03-06 Task LU decomposition 2011-03-11 Task Numerical integration/Gauss-Legendre Quadrature 2011-05-28 Task QR decomposition 2011-06-17 Task UTF-8 encode and decode 2017-03-05 Task
Axtens : 7 tasks	Task Name Date Added Status Decision tables 2011-01-24 Draft Find limit of recursion 2010-04-20 Task History variables 2011-06-29 Task Last letter-first letter 2011-06-05 Task Price fraction 2010-03-15 Task Rosetta Code/Tasks without examples 2015-04-21 Draft Take notes on the command line 2010-04-01 Task
Backupbrain : 1 task	Task Name Date Added Status SOAP 2007-01-23 Task
Badmadevil : 2 tasks	Task Name Date Added Status Pascal's triangle/Puzzle 2008-03-22 Task Power set 2008-06-07 Task
Bcdady : 1 task	Task Name Date Added Status Write to Windows event log 2010-05-07 Task
Bearophile : 10 tasks	Task Name Date Added Status ASCII art diagram converter 2013-10-14 Draft Boids 2013-01-06 Draft Dice game probabilities 2015-01-14 Draft Free polyominoes enumeration 2014-10-28 Draft Generate lower case ASCII alphabet 2013-08-02 Task Iterated digits squaring 2014-08-23 Task Maximum triangle path sum 2014-02-20 Task Nonogram solver 2013-11-21 Task Sum and Product Puzzle 2015-04-25 Task Total circles area 2012-09-15 Task
Binki : 1 task	Task Name Date Added Status Write entire file 2015-10-22 Task
Bjartur : 1 task	Task Name Date Added Status Repeat 2014-05-17 Draft
Bjrtr : 1 task	Task Name Date Added Status Call an object method 2011-08-16 Task
BlaiseP : 1 task	Task Name Date Added Status The ISAAC Cipher 2014-07-22 Task
Blue Prawn : 19 tasks	Task Name Date Added Status 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 2008-12-06 Task Catmull–Clark subdivision surface 2010-01-06 Task Check output device is a terminal 2013-03-28 Draft Equilibrium index 2010-09-23 Task Image convolution 2008-12-07 Task Last Friday of each month 2011-11-05 Task LZW compression 2008-08-08 Task Median filter 2008-12-07 Task N-queens problem 2009-09-12 Task Percentage difference between images 2008-11-13 Task Process SMIL directives in XML data 2010-01-02 Draft Shell one-liner 2008-08-26 Task Window creation/X11 2008-11-13 Task
Bob9000 : 3 tasks	Task Name Date Added Status Sort an integer array 2007-01-28 Task Sort using a custom comparator 2007-01-30 Task SQL-based authentication 2007-02-04 Task
Borneq : 2 tasks	Task Name Date Added Status Gauss-Jordan matrix inversion 2018-03-12 Draft Multidimensional Newton-Raphson metod 2018-03-12 Draft
BR : 1 task	Task Name Date Added Status Sorting algorithms/Comb sort 2010-01-25 Task
Bubbajim3 : 1 task	Task Name Date Added Status MAC Vendor Lookup 2017-01-14 Task
Bugmenot : 2 tasks	Task Name Date Added Status Array length 2015-09-26 Task Type detection 2015-10-07 Draft
Bugmenot2 : 1 task	Task Name Date Added Status Search a list of records 2015-10-09 Task
Bukzor : 1 task	Task Name Date Added Status Make directory path 2014-08-09 Task
Casebash : 1 task	Task Name Date Added Status String matching 2010-10-15 Task
Cblp : 1 task	Task Name Date Added Status Stream Merge 2016-06-15 Task
Ce : 12 tasks	Task Name Date Added Status Arithmetic/Integer 2007-05-28 Task Comments 2007-03-12 Task Constrained genericity 2008-12-05 Task Create a two-dimensional array at runtime 2007-02-27 Task Infinity 2008-01-20 Task Inheritance/Multiple 2008-04-27 Task Integer comparison 2007-03-31 Task Logical operations 2007-11-18 Task Loops/Downward for 2008-04-18 Task Loops/N plus one half 2008-04-18 Task Pointers and references 2007-01-25 Task Tree traversal 2009-07-08 Task
Cook : 2 tasks	Task Name Date Added Status Literals/String 2007-11-13 Task Special characters 2007-11-13 Task
Created by: X : 1 task	Task Name Date Added Status Determine if a string is numeric 2007-01-21 Task
CRGreathouse : 4 tasks	Task Name Date Added Status Literals/Floating point 2010-11-01 Task Matrix arithmetic 2012-06-29 Task Rosetta Code/Find bare lang tags 2011-07-09 Task Untrusted environment 2013-01-17 Draft
Crossrodas1112 : 1 task	Task Name Date Added Status Word break problem 2017-05-10 Draft
Cyberjacob : 1 task	Task Name Date Added Status IRC gateway 2011-05-05 Draft
D2 : 1 task	Task Name Date Added Status Towers of Hanoi 2007-01-24 Task
Damian.nikodem : 1 task	Task Name Date Added Status Sockets 2007-11-26 Task
DanBron : 2 tasks	Task Name Date Added Status Host introspection 2008-10-10 Task K-means++ clustering 2011-05-27 Task
Danprager : 1 task	Task Name Date Added Status Deming's Funnel 2013-06-10 Draft
DataWraith : 1 task	Task Name Date Added Status Run-length encoding 2009-04-24 Task
Davewhipp : 1 task	Task Name Date Added Status Constrained random points on a circle 2010-09-02 Task
Davgot : 1 task	Task Name Date Added Status Chinese remainder theorem 2014-01-24 Task
DavidMcCabe : 1 task	Task Name Date Added Status Send an unknown method call 2011-08-27 Task
Daxim : 4 tasks	Task Name Date Added Status 100 doors 2007-10-07 Task FizzBuzz 2007-10-07 Task HTTPS/Authenticated 2007-06-08 Task OpenGL 2007-06-08 Task
Dbohdan : 3 tasks	Task Name Date Added Status 2048 2014-06-12 Task FTP 2014-06-03 Task Retrieve and search chat history 2017-05-03 Task
Dgamey : 6 tasks	Task Name Date Added Status Deepcopy 2011-07-17 Task Galton box animation 2011-05-06 Task Longest string challenge 2011-08-12 Task MD5/Implementation 2010-09-29 Task Sierpinski triangle/Graphical 2011-05-06 Task State name puzzle 2011-08-29 Task
Dingowolf : 4 tasks	Task Name Date Added Status Create an object/Native demonstration 2010-10-01 Draft Happy numbers 2009-05-06 Task Strip block comments 2010-10-30 Task Variable-length quantity 2010-10-14 Task
Dirkt : 3 tasks	Task Name Date Added Status Formal power series 2008-03-28 Task Non-continuous subsequences 2008-03-27 Task Parametric polymorphism 2007-11-08 Task
Dkf : 21 tasks	Task Name Date Added Status Accumulator factory 2009-12-28 Task Animate a pendulum 2009-08-07 Task Animation 2009-06-14 Task Averages/Median 2009-06-12 Task Averages/Mode 2009-06-13 Task Cumulative standard deviation 2009-06-16 Task Echo server 2009-05-13 Task Generator/Exponential 2010-11-22 Task Hough transform 2010-01-21 Task HTTPS 2009-06-01 Task HTTPS/Client-authenticated 2009-06-01 Task Named parameters 2009-06-28 Task Non-decimal radices/Input 2009-06-09 Task Respond to an unknown method call 2009-06-03 Task Rosetta Code/Tasks sorted by average lines of code 2012-10-15 Draft Speech synthesis 2011-04-24 Task Stack traces 2009-05-18 Task Sutherland-Hodgman polygon clipping 2010-03-23 Task Terminal control/Ringing the terminal bell 2010-10-16 Task Verify distribution uniformity/Chi-squared test 2009-08-09 Task Wireworld 2009-09-09 Task
Dmitry-kazakov : 16 tasks	Task Name Date Added Status Abstract type 2008-11-20 Task Active object 2008-11-02 Task Arena storage pool 2009-03-22 Task Bitmap/Histogram 2008-12-07 Task Bitmap/Read a PPM file 2008-12-07 Task Call a foreign-language function 2009-08-11 Task Checkpoint synchronization 2010-08-10 Task Create an object at a given address 2009-06-08 Task Dining philosophers 2008-11-01 Task Events 2009-06-10 Task Grayscale image 2008-12-07 Task Loops/Nested 2009-06-11 Task Polymorphic copy 2008-10-25 Task Rendezvous 2009-02-17 Task Safe addition 2009-08-12 Task Use another language to call a function 2009-08-11 Task
Domgetter : 2 tasks	Task Name Date Added Status Monads/List monad 2016-02-01 Draft Monads/Maybe monad 2016-02-01 Draft
Drea : 1 task	Task Name Date Added Status Sieve of Eratosthenes 2007-10-18 Task
DSblizzard : 1 task	Task Name Date Added Status Multisplit 2011-02-27 Task
Dstaley : 1 task	Task Name Date Added Status JortSort 2015-03-03 Task
Dstaudacher : 1 task	Task Name Date Added Status Create a file on magnetic tape 2012-10-22 Task
Dubs : 1 task	Task Name Date Added Status Solve a Rubik's Cube 2017-01-20 Draft
Dukzcry : 1 task	Task Name Date Added Status AVL tree 2013-05-02 Task
Dwarring : 1 task	Task Name Date Added Status Poker hand analyser 2013-12-09 Task
Ed Davis : 5 tasks	Task Name Date Added Status Compiler/AST interpreter 2016-10-19 Task Compiler/code generator 2016-10-22 Task Compiler/lexical analyzer 2016-08-14 Task Compiler/syntax analyzer 2016-09-28 Task Compiler/virtual machine interpreter 2016-10-22 Task
Edmund : 2 tasks	Task Name Date Added Status Babbage problem 2016-04-11 Task French Republican calendar 2016-09-19 Draft
Emarch : 1 task	Task Name Date Added Status I.Q. Puzzle 2014-10-17 Draft
EMBee : 9 tasks	Task Name Date Added Status Find URI in text 2012-01-03 Draft Make a backup file 2011-11-09 Draft Order two numerical lists 2011-11-28 Task Readline interface 2011-11-02 Draft Rosetta Code/Run examples 2011-11-22 Draft Run as a daemon or service 2011-11-17 Draft S-Expressions 2011-10-15 Task Simple database 2011-11-01 Task Text to HTML 2012-01-05 Draft
Emeraude : 1 task	Task Name Date Added Status Floyd-Warshall algorithm 2015-10-09 Task
Eoraptor : 1 task	Task Name Date Added Status Rosetta Code/Rank languages by number of users 2017-12-17 Draft
Epsilon : 2 tasks	Task Name Date Added Status Arithmetic evaluation 2007-12-11 Task Proof 2007-12-21 Draft
Eriksiers : 1 task	Task Name Date Added Status Sorting algorithms/Pancake sort 2010-04-05 Task
Exagriddba : 1 task	Task Name Date Added Status The Name Game 2018-03-24 Task
Fabian : 1 task	Task Name Date Added Status Collections 2007-01-21 Task
Farter : 1 task	Task Name Date Added Status Tetris 2015-11-05 Draft
Francogrex : 2 tasks	Task Name Date Added Status Hash join 2013-11-25 Task Machine code 2013-12-31 Task
Fwend : 20 tasks	Task Name Date Added Status Archimedean spiral 2016-03-02 Task Barnsley fern 2016-03-01 Task Best shuffle 2010-12-11 Task Chaos game 2016-03-01 Task Julia set 2016-03-06 Task Magic squares of doubly even order 2016-03-16 Task Magic squares of singly even order 2016-03-16 Task Penrose tiling 2016-04-22 Draft Pentagram 2015-04-21 Task Pentomino tiling 2016-03-27 Draft Perceptron 2016-04-25 Draft Plasma effect 2016-03-08 Task Polyspiral 2016-03-09 Task Semordnilap 2012-09-07 Task Set puzzle 2013-02-09 Task Sierpinski pentagon 2015-10-15 Task Superellipse 2015-10-16 Task Temperature conversion 2013-02-12 Task Vampire number 2013-03-22 Task Word search 2016-03-26 Task
G.Brougnard : 6 tasks	Task Name Date Added Status Addition chains 2016-01-28 Draft Cipolla's algorithm 2016-03-25 Draft Prime conspiracy 2016-03-19 Draft Railway circuit 2016-01-21 Draft Simulated annealing 2016-03-23 Draft Tonelli-Shanks algorithm 2016-03-28 Draft
Geka Sua : 5 tasks	Task Name Date Added Status 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 2007-12-24 Task
Geoffhacker : 1 task	Task Name Date Added Status Longest Common Substring 2015-02-18 Draft
Georg Peter : 1 task	Task Name Date Added Status Integer overflow 2014-07-29 Task
Gerard Schildberger : 33 tasks	Task Name Date Added Status 4-rings or 4-squares puzzle 2016-12-31 Task Abbreviations, automatic 2017-09-17 Draft Abbreviations, easy 2017-09-17 Draft Abbreviations, simple 2017-09-17 Draft Bernoulli numbers 2014-03-11 Task Commatizing numbers 2014-04-05 Task Egyptian fractions 2014-04-02 Task Emirp primes 2014-03-24 Task Exponentiation order 2014-03-18 Task Farey sequence 2014-03-31 Task Find palindromic numbers in both binary and ternary bases 2014-03-25 Task Four is the number of letters in the ... 2017-09-11 Draft Idiomatically determine all the characters that can be used for symbols 2014-03-21 Draft Idiomatically determine all the lowercase and uppercase letters 2014-03-21 Draft Knuth's power tree 2015-06-02 Draft Left factorials 2014-03-29 Task Leonardo numbers 2017-05-20 Task Loops/Increment loop index within loop body 2018-02-18 Draft Lucky and even lucky numbers 2014-03-05 Task Magic squares of odd order 2014-03-20 Task Partition an integer X into N primes 2017-03-03 Task Pernicious numbers 2014-03-12 Task Population count 2014-03-12 Task Primorial numbers 2015-06-12 Task Pythagorean quadruples 2017-07-11 Task Reverse words in a string 2014-03-27 Task Sort three variables 2017-04-30 Task Spelling of ordinal numbers 2017-09-07 Draft Split a character string based on change of character 2016-12-30 Task Sum to 100 2016-12-31 Task Taxicab numbers 2014-03-14 Task Ulam spiral (for primes) 2015-01-14 Task Zero to the zero power 2014-03-18 Task
Gfannes : 5 tasks	Task Name Date Added Status 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 2007-01-22 Task
Glennj : 6 tasks	Task Name Date Added Status Boolean values 2009-07-10 Task Date manipulation 2009-05-13 Task Doubly-linked list/Traversal 2009-10-09 Task Loop over multiple arrays simultaneously 2009-08-06 Task Loops/For with a specified step 2009-07-10 Task Repeat a string 2009-10-21 Task
GlitchMr : 2 tasks	Task Name Date Added Status Check input device is a terminal 2012-09-24 Draft Damm algorithm 2017-05-29 Draft
Gn4v3 : 1 task	Task Name Date Added Status Greatest subsequential sum 2007-06-20 Task
GozzoMan : 1 task	Task Name Date Added Status Higher-order functions 2007-01-24 Task
Grauenwolf : 4 tasks	Task Name Date Added Status Determine if only one instance is running 2007-11-14 Task Doubly-linked list/Definition 2008-12-25 Task XML/Input 2008-12-25 Task XML/Output 2008-12-25 Task
GreatPalash : 1 task	Task Name Date Added Status Substitution Cipher 2015-10-12 Draft
Grondilu : 23 tasks	Task Name Date Added Status Bitcoin/address validation 2012-11-27 Task Bitcoin/public point to address 2012-11-29 Task Display a linear combination 2015-10-11 Draft Elementary cellular automaton 2014-02-27 Task Elementary cellular automaton/Infinite length 2014-03-20 Draft Elementary cellular automaton/Random Number Generator 2014-03-19 Draft Elliptic curve arithmetic 2012-11-30 Draft Entropy/Narcissist 2013-02-26 Task FASTA format 2013-04-03 Task Generate Chess960 starting position 2014-05-01 Task Generate random chess position 2015-12-11 Draft Geometric algebra 2015-10-13 Draft Index finite lists of positive integers 2014-05-08 Draft Levenshtein distance/Alignment 2013-05-02 Draft Modular arithmetic 2013-02-21 Draft Modular inverse 2012-11-30 Task Orbital elements 2016-07-06 Draft Perlin noise 2014-03-05 Draft SHA-256 2012-11-02 Task Shortest common supersequence 2013-02-22 Draft Suffix tree 2013-05-10 Draft Test integerness 2014-06-18 Task Topic variable 2013-01-24 Task
Guga360 : 6 tasks	Task Name Date Added Status Arrays 2009-07-30 Task Execute HQ9+ 2009-07-21 Task Image noise 2010-09-30 Task Rosetta Code/Fix code tags 2009-01-29 Task Rosetta Code/Rank languages by popularity 2009-01-24 Task Yahoo! search interface 2009-05-03 Task
Hailholyghost : 3 tasks	Task Name Date Added Status Fivenum 2018-02-21 Draft P-value correction 2017-11-01 Draft Welch's t-test 2015-05-26 Draft
Hajo : 1 task	Task Name Date Added Status One-time pad 2014-11-18 Draft
Hamstar : 2 tasks	Task Name Date Added Status Active Directory/Connect 2008-08-10 Task Active Directory/Search for a user 2008-08-06 Task
Hansoft : 1 task	Task Name Date Added Status Sorting Algorithms/Circle Sort 2015-01-04 Draft
Hippyman : 1 task	Task Name Date Added Status Color wheel 2016-08-21 Draft
Hircus : 1 task	Task Name Date Added Status Stair-climbing puzzle 2009-10-24 Task
Hout : 3 tasks	Task Name Date Added Status Cartesian product of two or more lists 2017-05-29 Task Monads/Writer monad 2016-02-01 Draft Water collected between towers 2016-12-06 Task
Hsnarula : 1 task	Task Name Date Added Status Find the last Sunday of each month 2013-04-16 Task
IanOsgood : 2 tasks	Task Name Date Added Status Memory allocation 2009-05-26 Task Sorting algorithms/Quicksort 2007-10-03 Task
Infogulch : 1 task	Task Name Date Added Status Sudoku 2009-07-21 Task
Isrunt : 1 task	Task Name Date Added Status File extension is in extensions list 2014-08-11 Draft
Jfd34 : 1 task	Task Name Date Added Status The Twelve Days of Christmas 2013-12-19 Task
Jgfoot : 1 task	Task Name Date Added Status Parallel Brute Force 2017-02-04 Task
Jhuni : 1 task	Task Name Date Added Status Enforced immutability 2011-01-02 Task
Jimbojw : 1 task	Task Name Date Added Status Date format 2007-08-03 Task
JimD : 2 tasks	Task Name Date Added Status Rot-13 2007-11-20 Task Secure temporary file 2007-10-22 Task
JimTheriot : 3 tasks	Task Name Date Added Status Chebyshev coefficients 2015-08-02 Draft Particle Swarm Optimization 2015-07-31 Draft Weather Routing 2015-06-30 Draft
Jking : 1 task	Task Name Date Added Status ABC Problem 2014-01-08 Task
Jrslepak : 2 tasks	Task Name Date Added Status Doubly-linked list/Element definition 2007-05-08 Task Doubly-linked list/Element insertion 2007-07-05 Task
Jwilkins : 1 task	Task Name Date Added Status Add a variable to a class instance at runtime 2007-09-18 Task
Kentros : 1 task	Task Name Date Added Status Word count 2017-08-14 Draft
Kernigh : 18 tasks	Task Name Date Added Status Caesar cipher 2011-06-12 Task Conjugate transpose 2012-01-30 Task Deal cards for FreeCell 2011-09-18 Task DNS query 2011-05-16 Task Empty directory 2012-01-02 Task Even or odd 2011-11-13 Task Identity matrix 2012-03-19 Task Jump anywhere 2011-05-19 Task Least common multiple 2011-03-30 Task Letter frequency 2011-09-18 Task Linear congruential generator 2011-06-30 Task MD4 2012-03-26 Task Modular exponentiation 2011-12-18 Task Return multiple values 2011-10-09 Task RIPEMD-160 2012-03-29 Task Set 2011-09-16 Task SHA-1 2012-01-18 Task Subtractive generator 2011-08-02 Task
Kevin Reid : 12 tasks	Task Name Date Added Status Atomic updates 2009-05-16 Task Distributed programming 2007-08-18 Task Multiple distinct objects 2009-01-29 Task Optional parameters 2009-05-24 Task Play recorded sounds 2009-06-11 Task Queue/Usage 2009-01-05 Task Read entire file 2010-06-29 Task Rosetta Code/Find unimplemented tasks 2009-02-07 Task Runtime evaluation 2009-02-17 Task Runtime evaluation/In an environment 2009-02-17 Task Stem-and-leaf plot 2009-12-14 Task Variables 2009-07-03 Task
Kipb : 2 tasks	Task Name Date Added Status Formatted numeric output 2007-02-11 Task String case 2007-02-11 Task
Krauss : 1 task	Task Name Date Added Status Base58Check encoding 2017-07-13 Draft
Kwhitefoot : 1 task	Task Name Date Added Status Singly-linked list/Element removal 2016-10-27 Draft
Kzh : 1 task	Task Name Date Added Status Catamorphism 2012-09-18 Task
Lambertdw : 1 task	Task Name Date Added Status Sorting algorithms/Radix sort 2011-01-19 Task
Learneroo : 2 tasks	Task Name Date Added Status Input/Output for Lines of Text 2014-01-08 Draft Input/Output for Pairs of Numbers 2013-12-04 Draft
Ledrug : 17 tasks	Task Name Date Added Status Balanced ternary 2011-11-01 Task Color quantization 2011-08-11 Task Count the coins 2011-10-27 Task Cut a rectangle 2011-10-08 Task Draw a clock 2011-07-03 Task IPC via named pipe 2011-09-28 Draft Josephus problem 2012-10-27 Task List rooted trees 2015-05-06 Draft Odd word problem 2011-11-03 Task Priority queue 2011-08-04 Task Pythagorean triples 2011-06-28 Task Resistor mesh 2011-08-21 Task Set of real numbers 2011-09-30 Task Statistics/Basic 2011-07-02 Task Statistics/Normal distribution 2011-07-27 Task Unicode strings 2011-06-30 Task Visualize a tree 2012-09-01 Task
Legrady : 1 task	Task Name Date Added Status File size distribution 2016-09-07 Draft
Lrq3000 : 1 task	Task Name Date Added Status Polynomial synthetic division 2015-06-05 Draft
Lupus : 3 tasks	Task Name Date Added Status Factors of a Mersenne number 2008-12-11 Task Roots of a quadratic function 2008-11-27 Task Sorting algorithms/Selection sort 2008-11-21 Task
MagiMaster : 7 tasks	Task Name Date Added Status Mad Libs 2011-11-07 Task Morpion solitaire 2011-06-07 Draft Recursive descent parser generator 2014-04-02 Draft Sokoban 2011-05-27 Task Straddling checkerboard 2011-06-06 Task Vigenère cipher 2011-05-31 Task Vigenère cipher/Cryptanalysis 2011-05-31 Task
Magnus : 1 task	Task Name Date Added Status Finite state machine 2017-08-24 Draft
Mahaju : 1 task	Task Name Date Added Status Montgomery reduction 2011-12-20 Draft
MainframeFossil : 1 task	Task Name Date Added Status Get system command output 2014-04-10 Task
Markhobley : 71 tasks	Task Name Date Added Status Audio frequency generator 2013-02-23 Draft Binary digits 2011-07-06 Task Call a function 2011-07-15 Task Case-sensitivity of identifiers 2011-02-07 Task Code segment unload 2013-02-22 Draft Colour bars/Display 2011-05-22 Task Colour pinstripe/Display 2011-05-22 Task Colour pinstripe/Printer 2011-05-22 Task Count in octal 2011-06-05 Task Death Star 2011-03-29 Task Draw a cuboid 2010-12-13 Task Draw a sphere 2011-03-25 Task Empty string 2011-07-04 Task Function prototype 2011-07-17 Task Globally replace text in several files 2010-10-30 Task Greyscale bars/Display 2011-05-22 Task Guess the number 2010-10-28 Task GUI/Maximum window dimensions 2010-11-23 Task Hello world/Line printer 2010-10-03 Task Hello world/Newline omission 2011-07-25 Task Here document 2011-05-14 Task Honeycombs 2011-05-25 Task Include a file 2011-05-29 Task Inverted syntax 2011-05-30 Task Joystick position 2011-05-23 Task Keyboard input/Flush the keyboard buffer 2010-10-07 Task Keyboard input/Keypress check 2010-10-07 Task Keyboard input/Obtain a Y or N response 2010-10-08 Task Metronome 2011-09-07 Task Musical scale 2013-03-22 Draft Nautical bell 2013-02-21 Task Pi 2011-03-25 Task Pinstripe/Display 2011-05-22 Task Pinstripe/Printer 2011-05-22 Task Pragmatic directives 2011-10-08 Task Read a configuration file 2011-02-10 Task Read a file character by character/UTF8 2013-03-17 Draft Read a file line by line 2011-04-03 Task Read a specific line from a file 2011-07-12 Task Remove lines from a file 2011-07-12 Task Scope/Function names and labels 2013-02-18 Task Special variables 2011-06-02 Task Start from a main routine 2011-07-12 Task String comparison 2013-02-22 Task Strip a set of characters from a string 2011-06-05 Task Strip comments from a string 2010-10-30 Task Strip control codes and extended characters from a string 2011-06-05 Task Strip whitespace from a string/Top and tail 2011-06-04 Task Substring/Top and tail 2011-06-05 Task Terminal control/Clear the screen 2010-10-04 Task Terminal control/Coloured text 2011-09-06 Task Terminal control/Cursor movement 2011-07-07 Task Terminal control/Cursor positioning 2010-10-04 Task Terminal control/Dimensions 2010-10-05 Task Terminal control/Display an extended character 2010-10-26 Task Terminal control/Hiding the cursor 2010-10-26 Task Terminal control/Inverse video 2010-10-26 Task Terminal control/Positional read 2010-10-04 Task Terminal control/Preserve screen 2011-03-20 Task Terminal control/Restricted width positional input/No wrapping 2013-02-10 Draft Terminal control/Restricted width positional input/With wrapping 2013-02-10 Draft Terminal control/Unicode output 2011-09-11 Task Truncate a file 2011-07-19 Task Update a configuration file 2011-05-20 Task URL decoding 2011-06-16 Task URL encoding 2011-06-16 Task Using a Speech engine to highlight words 2011-04-04 Draft Video display modes 2011-06-06 Task Waveform analysis/Doh ray me 2011-07-12 Draft Waveform analysis/Top and tail 2011-09-09 Draft Write language name in 3D ASCII 2010-12-15 Task
Markjreed : 3 tasks	Task Name Date Added Status Chinese zodiac 2017-01-27 Task Knight's tour 2011-05-27 Task Subleq 2015-04-27 Task
Marshmallows : 3 tasks	Task Name Date Added Status Amb 2008-03-23 Task Loops/For 2008-04-11 Task Loops/Infinite 2008-04-11 Task
Masak : 2 tasks	Task Name Date Added Status Average loop length 2013-01-03 Task Balanced brackets 2011-02-20 Task
Mathaddict : 1 task	Task Name Date Added Status A+B 2010-04-08 Task
Matthias : 1 task	Task Name Date Added Status Dragon curve 2008-03-27 Task
Mbishop : 1 task	Task Name Date Added Status Knuth shuffle 2009-05-20 Task
Mcandre : 5 tasks	Task Name Date Added Status Modulinos 2011-03-03 Draft Multiline shebang 2011-08-06 Draft Parse command-line arguments 2011-08-06 Draft Pick random element 2011-08-09 Task Program name 2011-08-05 Task
MichaelChrisco : 1 task	Task Name Date Added Status Sorting algorithms/Bead sort 2010-08-25 Task
Mikachu : 1 task	Task Name Date Added Status Roman numerals/Decode 2011-05-09 Task
Mikymaione : 2 tasks	Task Name Date Added Status Kosaraju 2017-02-05 Draft Tarjan 2017-02-04 Draft
Mischief : 1 task	Task Name Date Added Status Sorting algorithms/Cycle sort 2014-06-12 Draft
Mogmios : 1 task	Task Name Date Added Status VList 2011-01-20 Draft
Mroman : 1 task	Task Name Date Added Status Entropy 2013-02-21 Task
Mwn3d : 55 tasks	Task Name Date Added Status 99 Bottles of Beer 2008-02-28 Task Ackermann function 2008-09-23 Task Arithmetic/Complex 2008-03-08 Task Array concatenation 2009-09-09 Task Assertions 2009-02-04 Task Binary search 2007-11-08 Task Bitwise operations 2007-11-18 Task Card shuffles 2015-04-26 Draft Catalan numbers 2011-02-11 Task Detect division by zero 2008-02-17 Task Documentation 2009-09-03 Task Execute SNUSP 2008-05-04 Task Fibonacci sequence 2008-02-29 Task Five weekends 2010-10-22 Task Gray code 2011-03-16 Task Hello world/Standard error 2009-01-07 Task Huffman coding 2009-03-26 Task Inheritance/Single 2008-04-27 Task Input loop 2008-02-17 Task Longest common subsequence 2008-05-07 Task Loops/Break 2009-06-05 Task Loops/Continue 2008-04-21 Task Loops/Do-while 2008-04-14 Task Loops/Foreach 2008-04-13 Task Loops/While 2008-04-11 Task MD5 2007-11-19 Task Monte Carlo methods 2008-09-24 Task Null object 2008-07-30 Task Numerical integration 2007-12-21 Task Parametrized SQL statement 2009-10-07 Task Pascal's triangle 2008-06-23 Task Perfect numbers 2008-08-22 Task Primality by trial division 2007-11-20 Task Prime decomposition 2008-02-05 Task Program termination 2008-04-21 Task Quine 2007-11-09 Task Real constants and functions 2008-05-07 Task Reduced row echelon form 2009-01-21 Task Rosetta Code/Count examples 2009-02-09 Task Scope modifiers 2009-06-10 Task Show the epoch 2011-08-08 Task Sleep 2007-12-11 Task Sorting algorithms/Cocktail sort 2008-11-25 Task Sorting algorithms/Insertion sort 2007-11-11 Task Sorting algorithms/Merge sort 2008-02-05 Task Sorting algorithms/Stooge sort 2010-07-24 Task String concatenation 2008-12-17 Task String length 2008-01-19 Task Sum and product of an array 2007-12-03 Task System time 2008-01-23 Task Trigonometric functions 2008-01-05 Task User input/Graphical 2009-07-08 Task User input/Text 2009-07-08 Task Variadic function 2008-06-01 Task World Cup group stage 2014-06-18 Task
Namanyayg : 1 task	Task Name Date Added Status Using the Meetup.com API 2014-12-27 Draft
NevilleDNZ : 39 tasks	Task Name Date Added Status Addition-chain exponentiation 2011-08-27 Draft Append a record to the end of a text file 2011-09-12 Task Arithmetic/Rational 2009-02-13 Task Banker's algorithm 2013-02-24 Draft Birthday problem 2013-06-04 Draft Calendar 2011-05-30 Task Calendar - for "REAL" programmers 2011-05-31 Task Combinations and permutations 2013-04-14 Task Currying 2013-04-02 Task Exponentiation operator 2008-02-19 Task Find first and last set bit of a long integer 2011-12-07 Draft Generalised floating point addition 2011-10-28 Draft Generalised floating point multiplication 2011-10-30 Draft Greatest common divisor 2007-12-17 Task Hello world/Graphical 2008-02-12 Task Holidays related to Easter 2010-06-29 Task Horizontal sundial calculations 2010-06-24 Task Implicit type conversion 2013-04-23 Draft Jensen's Device 2008-11-21 Task Just in time processing on a character stream 2013-12-15 Draft Lucas-Lehmer test 2008-02-14 Task Man or boy test 2007-12-18 Task Matrix transposition 2008-02-07 Task Matrix-exponentiation operator 2008-02-19 Task Multiplication tables 2009-12-05 Task Naming conventions 2015-09-19 Task Native shebang 2013-09-03 Draft Number names 2008-09-27 Task Operator precedence 2012-08-17 Task Permutations with repetitions 2013-04-26 Draft Reverse the gender of a string 2012-10-05 Draft Search a list 2008-09-28 Task Sorting algorithms/Tree sort on a linked list 2014-03-30 Draft String append 2013-10-03 Task String prepend 2013-10-03 Task Ternary logic 2011-08-26 Task Thiele's interpolation formula 2010-10-02 Task Unicode polynomial equation 2011-11-17 Draft User defined pipe and redirection operators 2011-09-13 Draft
Nigel Galloway : 26 tasks	Task Name Date Added Status 9 billion names of God the integer 2013-04-27 Task Arithmetic-geometric mean 2012-02-06 Task Arithmetic-geometric mean/Calculate Pi 2014-01-12 Task Blackjack strategy 2013-07-01 Draft Carmichael 3 strong pseudoprimes 2012-11-30 Task Casting out nines 2012-06-24 Task Catalan numbers/Pascal's triangle 2013-04-26 Task Combinations with repetitions/Square Digit Chain 2014-09-16 Draft Continued fraction 2012-02-27 Task Continued fraction/Arithmetic/Construct from rational number 2013-02-04 Task Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N) 2013-02-06 Draft Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2) 2013-02-12 Draft Digital root 2012-07-20 Task Fibonacci word 2013-07-12 Task Fibonacci word/fractal 2013-07-15 Task Find largest left truncatable prime in a given base 2012-09-15 Task Ramsey's theorem 2012-01-07 Draft Solve a Hidato puzzle 2012-01-12 Task Solve a Holy Knight's tour 2014-06-01 Task Solve a Hopido puzzle 2014-05-30 Task Solve a Numbrix puzzle 2014-05-30 Task Sum digits of an integer 2012-07-19 Task Textonyms 2015-02-03 Task Ukkonen’s Suffix Tree Construction 2015-02-20 Draft Vogel's approximation method 2013-09-01 Task Zeckendorf arithmetic 2012-10-29 Task
Nirs : 2 tasks	Task Name Date Added Status Delegates 2007-10-03 Task Queue/Definition 2007-11-04 Task
Old man : 1 task	Task Name Date Added Status Primes - allocate descendants to their ancestors 2015-02-23 Task
Oligomous : 2 tasks	Task Name Date Added Status Factors of an integer 2009-08-15 Task Substring 2009-08-05 Task
Outis : 3 tasks	Task Name Date Added Status Reflection/Get source 2016-07-22 Task Reflection/List methods 2016-07-23 Draft Reflection/List properties 2016-07-24 Task
P3cox : 1 task	Task Name Date Added Status Fibonacci heap 2017-07-02 Draft
Paddy3118 : 154 tasks	Task Name Date Added Status 24 game 2009-10-31 Task 24 game/Solve 2009-11-01 Task Abundant, deficient and perfect number classifications 2014-12-16 Task AKS test for primes 2014-02-06 Task Align columns 2008-11-16 Task Aliquot sequence classifications 2014-12-18 Task Almost prime 2014-02-21 Task Amicable pairs 2014-12-16 Task Anagrams 2008-09-24 Task Anagrams/Deranged anagrams 2011-05-14 Task Arbitrary-precision integers (included) 2010-02-13 Task Averages/Mean angle 2012-07-09 Task Averages/Mean time of day 2012-07-10 Task Averages/Pythagorean means 2010-02-20 Task Averages/Root mean square 2010-02-20 Task Averages/Simple moving average 2009-06-17 Task Box the compass 2011-03-27 Task Break OO privacy 2011-08-06 Task Bulls and cows 2009-05-03 Task Bulls and cows/Player 2010-06-13 Task Circles of given radius through two points 2013-04-16 Task Comma quibbling 2013-10-06 Task Conway's Game of Life 2008-10-10 Task CSV to HTML translation 2010-11-13 Task Day of the week 2008-12-12 Task Digital root/Multiplicative digital root 2014-04-11 Task Dinesman's multiple-dwelling problem 2011-06-25 Task Dot product 2010-02-24 Task Dutch national flag problem 2012-07-01 Task Egyptian division 2017-08-07 Task Ethiopian multiplication 2009-07-23 Task Euler's sum of powers conjecture 2015-04-14 Task Evolutionary algorithm 2009-10-06 Task Exceptions/Catch an exception thrown in a nested call 2009-03-07 Task Executable library 2011-03-14 Task Extensible prime generator 2014-03-26 Task Extreme floating point values 2010-07-15 Task Fibonacci n-step number sequences 2012-05-24 Task Find common directory path 2010-03-23 Task First-class functions 2009-02-24 Task First-class functions/Use numbers analogously 2009-08-05 Task Flatten a list 2009-08-16 Task Flipping bits game 2013-07-10 Task Floyd's triangle 2012-06-24 Task Function composition 2009-03-03 Task Functional coverage tree 2015-08-12 Draft Guess the number/With feedback 2010-10-29 Task Guess the number/With feedback (player) 2010-10-29 Task Hailstone sequence 2010-03-08 Task Hamming numbers 2009-12-02 Task Harshad or Niven series 2013-03-25 Task Hello world/Newbie 2011-11-06 Task Heronian triangles 2015-01-03 Task Hickerson series of almost integers 2014-01-01 Task Hofstadter Figure-Figure sequences 2011-10-22 Task Hofstadter Q sequence 2011-10-23 Task Hofstadter-Conway $10,000 sequence 2010-03-09 Task Horner's rule for polynomial evaluation 2010-03-31 Task I before E except after C 2013-01-03 Task Interactive programming 2009-02-21 Task Kahan summation 2014-12-11 Draft Kaprekar numbers 2011-06-07 Task Knapsack problem/Unbounded 2008-12-02 Task Knuth's algorithm S 2011-10-21 Task Largest int from concatenated ints 2013-04-03 Task Literals/Integer 2009-02-01 Task Longest increasing subsequence 2013-08-16 Task Look-and-say sequence 2009-04-04 Task Ludic numbers 2014-03-15 Task Luhn test of credit card numbers 2010-03-02 Task Lychrel numbers 2015-08-29 Task Menu 2009-06-03 Task Middle three digits 2013-02-02 Task Minesweeper game 2010-07-10 Task Monty Hall problem 2008-08-05 Task Move-to-front algorithm 2014-05-20 Task Multi-dimensional array 2015-01-09 Draft Multifactorial 2012-11-13 Task Mutual recursion 2009-04-09 Task N'th 2014-03-15 Task Narcissistic decimal number 2014-03-06 Task Natural sorting 2011-04-23 Task Non-decimal radices/Output 2009-01-31 Task Nonoblock 2014-04-04 Task Number reversal game 2010-04-03 Task Numeric error propagation 2011-07-30 Task One of n lines in a file 2011-09-07 Task One-dimensional cellular automata 2008-10-08 Task Order disjoint list items 2014-05-04 Task Ordered words 2010-11-09 Task Pangram checker 2010-01-25 Task Parsing/RPN calculator algorithm 2011-12-03 Task Parsing/RPN to infix conversion 2011-12-03 Task Parsing/Shunting-yard algorithm 2011-12-02 Task Partial function application 2011-03-25 Task Pascal matrix generation 2015-04-15 Task Penney's game 2014-09-27 Task Percolation/Bond percolation 2013-08-07 Task Percolation/Mean cluster density 2013-08-10 Task Percolation/Mean run density 2013-08-10 Task Percolation/Site percolation 2013-08-09 Task Permutations by swapping 2012-07-24 Task Permutations/Derangements 2011-05-14 Task Permutations/Rank of a permutation 2012-10-25 Task Phrase reversals 2014-11-13 Task Pig the dice game 2012-09-12 Task Pig the dice game/Player 2012-09-14 Task Probabilistic choice 2008-11-17 Task Proper divisors 2014-12-16 Draft Quaternion type 2010-08-02 Task Quickselect algorithm 2013-09-28 Task Random number generator (included) 2010-01-23 Task Range expansion 2010-07-15 Task Range extraction 2010-07-15 Task Ranking methods 2014-07-05 Task Rep-string 2013-05-10 Task Sailors, coconuts and a monkey problem 2015-05-01 Task Send email 2009-07-01 Task Sequence of non-squares 2008-08-24 Task Sequence of primorial primes 2015-06-13 Draft Set consolidation 2012-05-07 Task Seven-sided dice from five-sided dice 2009-08-08 Task Shoelace formula for polygonal area 2017-08-09 Task Short-circuit evaluation 2010-07-24 Task Solve the no connection puzzle 2014-10-04 Task Sort disjoint sublist 2011-02-12 Task Sort stability 2009-06-06 Task Sparkline in unicode 2013-06-17 Task Spiral matrix 2008-08-05 Task Stable marriage problem 2010-08-05 Task Stern-Brocot sequence 2014-12-07 Task String interpolation (included) 2010-01-30 Task Superpermutation minimisation 2014-11-14 Draft Test a function 2009-05-28 Task Text processing/1 2008-11-08 Task Text processing/2 2008-11-13 Task Text processing/Max licenses in use 2008-10-03 Task Tic-tac-toe 2011-02-04 Task Topological sort 2009-07-03 Task Topological sort/Extracted top item 2010-10-06 Draft Topswops 2012-11-22 Task Trabb Pardo–Knuth algorithm 2012-05-22 Task Truncatable primes 2010-09-08 Task Truth table 2011-10-31 Task Unbias a random generator 2011-02-22 Task Unicode variable names 2011-07-01 Task Van der Corput sequence 2011-03-10 Task Vector products 2011-04-09 Task Verify distribution uniformity/Naive 2009-08-08 Task Web scraping 2008-08-20 Task Y combinator 2009-02-28 Task Yin and yang 2011-04-02 Task Zeckendorf number representation 2012-10-10 Task Zhang-Suen thinning algorithm 2013-10-13 Task
Paul : 1 task	Task Name Date Added Status Linux CPU utilization 2015-05-27 Draft
Paul.chernoch : 1 task	Task Name Date Added Status Cycle detection 2016-02-25 Draft
Paulo Jorente : 13 tasks	Task Name Date Added Status 15 puzzle solver 2017-07-10 Task Bacon cipher 2015-09-04 Draft Black Box 2017-07-05 Draft Decimal floating point number to binary 2014-02-02 Draft Greed 2016-04-13 Draft Hexapawn 2015-06-05 Draft Markov chain text generator 2016-06-25 Draft Mastermind 2016-10-31 Draft Playfair cipher 2013-05-10 Draft Robots 2016-04-14 Draft Smith numbers 2016-04-09 Task Snake And Ladder 2016-12-02 Draft Tamagotchi emulator 2015-12-01 Draft
Pelci : 5 tasks	Task Name Date Added Status Combinations with repetitions 2010-11-16 Task Knapsack problem/0-1 2010-02-14 Task Knapsack problem/Bounded 2010-02-14 Task Knapsack problem/Continuous 2010-02-24 Task Permutations 2010-10-02 Task
Peterburk : 1 task	Task Name Date Added Status Text between 2018-01-05 Draft
Pirho : 1 task	Task Name Date Added Status Gaussian elimination 2012-02-11 Task
Pistacchio : 1 task	Task Name Date Added Status Hunt The Wumpus 2015-05-07 Task
Proton : 1 task	Task Name Date Added Status External sort 2016-10-05 Draft
Rainb : 1 task	Task Name Date Added Status Base64 encode data 2013-08-26 Draft
Ralph : 1 task	Task Name Date Added Status Sort an array of composite structures 2007-08-12 Task
RasF : 1 task	Task Name Date Added Status Problem of Apollonius 2010-08-11 Task
Raslbg : 1 task	Task Name Date Added Status Data Encryption Standard 2017-05-29 Draft
Razerwolf : 1 task	Task Name Date Added Status Bilinear interpolation 2013-06-10 Draft
Rdm : 3 tasks	Task Name Date Added Status 15 Puzzle Game 2016-02-06 Task Convex hull 2015-06-01 Draft OpenGL Pixel Shader 2011-10-25 Draft
Rob.s.brit : 4 tasks	Task Name Date Added Status Brownian tree 2010-04-27 Task Execute a Markov algorithm 2009-12-15 Task Fractal tree 2010-05-04 Task Multiple regression 2009-06-29 Task
Roger Hui : 5 tasks	Task Name Date Added Status Averages/Arithmetic mean 2007-12-11 Task Combinations 2007-12-08 Task Multiplicative order 2007-12-08 Task Roots of unity 2007-12-13 Task Sum of squares 2007-12-11 Task
Roland Illig : 1 task	Task Name Date Added Status Nested function 2016-09-17 Task
Sanaris : 1 task	Task Name Date Added Status N-body problem 2014-04-15 Draft
Sceiler : 1 task	Task Name Date Added Status Extract file extension 2015-05-04 Draft
Senyotzyabin : 1 task	Task Name Date Added Status Sum multiples of 3 and 5 2013-05-14 Task
Sgeier : 3 tasks	Task Name Date Added Status Hostname 2007-02-03 Task Introspection 2007-03-15 Task Simple windowed application 2007-02-20 Task
Shedai : 1 task	Task Name Date Added Status Most frequent k chars distance 2014-03-23 Draft
ShinTakezou : 17 tasks	Task Name Date Added Status Binary strings 2009-04-14 Task Bitmap/Flood fill 2009-02-18 Task Bitmap/Read an image through a pipe 2008-12-11 Task Bitwise IO 2008-12-19 Task Call a function in a shared library 2009-03-06 Task Closest-pair problem 2009-05-06 Task Forest fire 2010-07-12 Task Four bit adder 2010-06-15 Task Gamma function 2009-03-05 Task Miller–Rabin primality test 2009-04-29 Task Nth root 2009-07-31 Task Palindrome detection 2008-12-05 Task Polynomial long division 2009-06-17 Task Ray-casting algorithm 2009-05-23 Task Sorting algorithms/Counting sort 2009-05-19 Task Sorting algorithms/Gnome sort 2009-04-27 Task Xiaolin Wu's line algorithm 2009-03-06 Task
Short Circuit : 33 tasks	Task Name Date Added Status Conditional structures 2007-01-25 Task Count in factors 2010-12-23 Task Empty program 2007-01-18 Task Exceptions 2007-01-25 Task Execute a system command 2007-02-01 Task Execute Brain**** 2007-11-28 Task File input/output 2007-01-09 Task Find the missing permutation 2009-12-24 Task Flow-control structures 2007-01-25 Task Greatest element of a list 2008-06-01 Task Hello world/Text 2007-01-09 Task Integer sequence 2011-02-13 Task JSON 2007-11-26 Task Long multiplication 2009-02-25 Task Map range 2010-11-25 Task Old lady swallowed a fly 2011-08-15 Task Parse an IP Address 2011-09-25 Task Rate counter 2009-12-05 Task RCRPG 2008-09-11 Task Remote agent/Agent interface 2010-02-15 Draft Remote agent/Agent logic 2010-02-15 Draft Remote agent/Simulation 2010-02-15 Draft Rock-paper-scissors 2011-07-04 Task Roots of a function 2008-02-22 Task Rosetta Code/List authors of task descriptions 2012-09-02 Draft Singleton 2008-02-05 Task Singly-linked list/Element definition 2007-03-19 Task Singly-linked list/Element insertion 2007-03-20 Task Sum of a series 2008-02-22 Task Symmetric difference 2009-12-02 Task Table creation 2007-01-14 Draft Undefined values 2009-11-28 Task Walk a directory/Recursively 2007-01-28 Task
Simplex : 1 task	Task Name Date Added Status Department Numbers 2017-05-22 Task
Siskus : 3 tasks	Task Name Date Added Status Assertions in design by contract 2014-08-20 Draft Separate the house number from the street name 2014-06-09 Draft Starting a web browser 2014-07-27 Draft
Sluggo : 4 tasks	Task Name Date Added Status Deconvolution/1D 2010-02-21 Task Deconvolution/2D+ 2010-02-23 Task Permutation test 2011-02-01 Task Subset sum problem 2012-01-01 Draft
Smarmius : 1 task	Task Name Date Added Status Voronoi diagram 2011-07-19 Task
Smls : 4 tasks	Task Name Date Added Status Brace expansion 2014-01-25 Task Compare a list of strings 2014-06-26 Task Convert seconds to compound duration 2015-06-06 Task Tokenize a string with escaping 2014-06-24 Task
Sonia : 5 tasks	Task Name Date Added Status Currency 2014-01-02 Draft Hello world/Web server 2011-06-30 Task K-d tree 2012-03-06 Task Sorting algorithms/Sleep sort 2011-06-16 Task Word wrap 2012-03-27 Task
Sothach : 1 task	Task Name Date Added Status Longest common prefix 2015-03-19 Draft
Spekkio : 2 tasks	Task Name Date Added Status CRC-32 2011-11-29 Task Munching squares 2011-11-25 Task
Spintronic : 1 task	Task Name Date Added Status XML Validation 2014-11-03 Draft
Spoon! : 6 tasks	Task Name Date Added Status Associative array/Iteration 2009-08-03 Task Character codes 2008-11-17 Task Closures/Value capture 2011-07-20 Task Count occurrences of a substring 2011-06-16 Task Environment variables 2008-12-23 Task Sorting algorithms/Patience sort 2013-08-21 Draft
Star651 : 2 tasks	Task Name Date Added Status Audio Overlap Loop 2011-07-26 Draft AudioAlarm 2011-07-21 Draft
Stone : 1 task	Task Name Date Added Status Tokenize a string 2007-02-02 Task
Sxpert : 1 task	Task Name Date Added Status OpenWebNet Password 2012-07-09 Draft
TBH : 1 task	Task Name Date Added Status Forward difference 2007-12-14 Task
Thecodestone : 1 task	Task Name Date Added Status Mersenne primes 2018-01-04 Draft
TheWombat : 1 task	Task Name Date Added Status Validate International Securities Identification Number 2015-02-23 Task
Thundergnat : 6 tasks	Task Name Date Added Status Benford's law 2013-05-03 Task Four is magic 2017-09-27 Draft Imaginary base numbers 2017-02-12 Draft Largest number divisible by its digits 2017-09-01 Draft Pathological floating point problems 2016-02-22 Task Self-referential sequence 2011-08-21 Task
Til : 1 task	Task Name Date Added Status Regular expressions 2007-01-24 Task
TimSC : 9 tasks	Task Name Date Added Status A* search algorithm 2016-12-18 Draft Angle difference between two bearings 2016-12-16 Task Apply a digital filter (direct form II transposed) 2016-12-16 Task Determine if two triangles overlap 2016-12-16 Draft Eertree 2016-12-15 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 2016-12-16 Task
TimToady : 2 tasks	Task Name Date Added Status Same Fringe 2012-08-14 Task Twelve statements 2012-09-20 Task
Tinku99 : 10 tasks	Task Name Date Added Status Color of a screen pixel 2009-05-27 Task Dynamic variable names 2009-06-02 Task Inverted index 2010-04-20 Task Keyboard macros 2009-05-27 Task Mouse position 2009-05-27 Task OLE Automation 2011-07-24 Task Parse EBNF 2010-06-12 Draft Simulate input/Keyboard 2009-06-02 Task Simulate input/Mouse 2009-05-26 Task Window management 2009-05-27 Task
TobyK : 6 tasks	Task Name Date Added Status Check Machin-like formulas 2012-11-08 Task Chess player/Move generation 2015-05-18 Draft Chess player/Program options and user interface 2015-05-18 Draft Chess player/Search and evaluation 2015-05-18 Draft Find duplicate files 2013-04-10 Draft Password generator 2016-04-24 Task
Toucanbird : 4 tasks	Task Name Date Added Status CUSIP 2017-02-11 Task IBAN 2013-03-31 Task NYSIIS 2013-03-17 Draft Time-based One-time Password Algorithm 2014-09-21 Draft
Trizen : 6 tasks	Task Name Date Added Status Arithmetic coding/As a generalized change of radix 2016-01-23 Draft Cramer's rule 2016-01-28 Task Faulhaber's formula 2016-01-10 Draft Faulhaber's triangle 2017-06-05 Draft Jaro distance 2016-02-01 Task Snake 2016-03-30 Draft
Ttmrichter : 1 task	Task Name Date Added Status Universal Turing machine 2013-02-04 Task
Umariani : 1 task	Task Name Date Added Status Sort a list of object identifiers 2016-07-07 Task
Underscore : 2 tasks	Task Name Date Added Status Go Fish 2009-11-27 Task Metaprogramming 2010-11-14 Task
Vcelier : 1 task	Task Name Date Added Status Sorting algorithms/Bubble sort 2007-01-21 Task
Vilipetek : 1 task	Task Name Date Added Status CSV data manipulation 2013-06-20 Task
Waldorf : 13 tasks	Task Name Date Added Status Address of a variable 2007-02-27 Task Concurrent computing 2007-02-06 Task Define a primitive data type 2007-02-27 Task Generic swap 2007-09-07 Task Handle a signal 2008-12-23 Task Memory layout of a data structure 2007-02-27 Task Metered concurrency 2007-02-09 Task Object serialization 2007-03-09 Task Playing cards 2008-04-27 Task Roman numerals/Encode 2008-04-01 Task Synchronous concurrency 2007-02-09 Task Variable size/Get 2007-02-27 Task Variable size/Set 2007-02-27 Task
Walterpachl : 1 task	Task Name Date Added Status Selective File Copy 2015-04-27 Draft
Wei2912 : 2 tasks	Task Name Date Added Status General FizzBuzz 2015-03-08 Task Unix/ls 2014-06-05 Task
WillNess : 2 tasks	Task Name Date Added Status Sequence of primes by trial division 2014-09-13 Task Zebra puzzle 2011-12-02 Task
Wmeyer : 1 task	Task Name Date Added Status Compile-time calculation 2010-01-25 Task
Wolfram : 1 task	Task Name Date Added Status Fast Fourier transform 2011-02-08 Task
Wsg : 1 task	Task Name Date Added Status Semiprime 2014-02-20 Task
Xenoker : 1 task	Task Name Date Added Status Runge-Kutta method 2012-03-15 Task
Xkrouhn : 2 tasks	Task Name Date Added Status Convert decimal number to rational 2011-06-11 Task Self-describing numbers 2011-05-08 Task
Yuriy Chumak : 1 task	Task Name Date Added Status OpenGL/Utah Teapot 2016-01-12 Draft
Zelah : 2 tasks	Task Name Date Added Status Integer roots 2016-05-10 Draft Self-hosting compiler 2014-05-02 Draft
Zorro1024 : 2 tasks	Task Name Date Added Status Perfect shuffle 2015-04-16 Task Vector 2015-03-21 Draft
Zzo38 : 1 task	Task Name Date Added Status Thue-Morse 2015-09-20 Task
Русский : 3 tasks	Task Name Date Added Status Main step of GOST 28147-89 2012-08-31 Task Old Russian measure of length 2013-01-09 Draft Transportation problem 2013-05-24 Draft

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;

1. 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 $tablefile = './RC_Authors.txt'; my $hashfile = './RC_Authors.json';

my %tasks;

1. clear screen

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

1. =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 clear, 1 + $++, ' ', %cat{$category}, ' ', .[0]<title>;
       %tasks{.[0]<title>}<category> = %cat{$category};
       %tasks{.[0]<title>}<author> = .[0]<revisions>[0]<user>;
       %tasks{.[0]<title>}<date> = .[0]<revisions>[0]<timestamp>.subst(/'T'.+$/, )
       }
   )

}

print clear;

1. Save information to a local file

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

1. =end update

1. Load information from local file

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

1. Convert saved task / author info to a table

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

1. Open a file handle to dump table in

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

1. Add table boilerplate and header

$out.say:

"

\n",

   "\{|class=\"wikitable\"\n",
   "|+ As of { Date.today } :: Total Tasks: { $count }:: Tasks: { $taskcnt }",
   " :: Draft Tasks: { $draftcnt }\n",
   "! Author !! Authored"

1. Get sorted unique list of task authors

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

   # Get list of tasks by this author
   my @these = %tasks.grep( { $_.value.<author> eq $author } );
   my $s = +@these == 1 ??  !! 's';

   # Add author and contributions link to the first cell
   $out.say: "|-\n| $author : ",
     " { +@these } task{ $s }";

   $out.say: "|style=\"padding: 0px;\"|\n",
     "\{|class=\"broadtable sortable\" style=\"width: 100%;\"\n",
     "! Task Name !! Date Added !! Status";

   # Tasks by this author, sorted by name
   for @these.sort({.key.&naturally}) -> $task {

       my $color = $task.value.<category> eq 'Draft' ?? '#ffd' !! '#fff';

       # add the task link, date and status to the table in the second cell
       $out.say: "|-\n|style=\"background-color: $color;\"",
         ( $task.key ~~ /\d/
           ?? " data-sort-value=\"{ sort-key $task.key }\"| [[{uri-escape $task.key}|{$task.key}]]\n"
           !! "| [[{uri-escape $task.key}|{$task.key}]]\n"
         ),
         "|style=\"width: 10em; background-color: $color;\"| {$task.value.<date>}\n",
         "|style=\"width: 6em; background-color: $color;\"| {$task.value.<category>}",
   }
    $out.say: '|}'

}

$out.say( "|}\n", '

' );

$out.close;

note "Table file saved as: {$tablefile.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("&") }

sub sort-key ($a) { $a.lc.subst(/(\d+)/, ->$/ {0~(65+$0.chars).chr~$0},:g) }

sub clear { "\r" ~ ' ' x 100 ~ "\r" } </lang>

Sample output:

As of 2018-03-31 :: Total Tasks: 1080:: Tasks: 871 :: Draft Tasks: 209

Author	Authored
2Powers : 2 tasks	Task Name Date Added Status Names to numbers 2013-05-16 Draft Solving coin problems 2013-05-16 Draft
12.175.32.19 : 1 task	Task Name Date Added Status Soundex 2009-11-12 Task
12Me21 : 1 task	Task Name Date Added Status Draw a rotating cube 2015-05-04 Task
many rows omitted...
Zorro1024 : 2 tasks	Task Name Date Added Status Perfect shuffle 2015-04-16 Task Vector 2015-03-21 Draft
Zzo38 : 1 task	Task Name Date Added Status Thue-Morse 2015-09-20 Task
Русский : 3 tasks	Task Name Date Added Status Main step of GOST 28147-89 2012-08-31 Task Old Russian measure of length 2013-01-09 Draft Transportation problem 2013-05-24 Draft