Rosetta Code/Count examples/Full list

Full output for the Rosetta Code/Count examples#Perl_6 task. Updated periodically.

As of 2018-09-03T21:23:04Z :: Tasks: 894 :: Draft Tasks:222 :: Total Tasks: 1116 :: Total Examples: 57978

Count	Task	Category
397	Hello world/Text	Task
276	99 Bottles of Beer	Task
273	FizzBuzz	Task
267	100 doors	Task
247	Fibonacci sequence	Task
243	Comments	Task
235	Factorial	Task
220	Empty program	Task
217	A+B	Task
210	Function definition	Task
198	Loops/Infinite	Task
196	Ackermann function	Task
192	Loops/While	Task
189	Reverse a string	Task
188	Arrays	Task
180	Loops/For	Task
178	Conditional structures	Task
178	Greatest common divisor	Task
175	Arithmetic/Integer	Task
175	Greatest element of a list	Task
169	Averages/Arithmetic mean	Task
165	Integer comparison	Task
161	Array concatenation	Task
161	Repeat a string	Task
160	Increment a numerical string	Task
159	Loops/Downward for	Task
158	Boolean values	Task
153	Loops/For with a specified step	Task
152	Copy a string	Task
152	Even or odd	Task
150	Hello world/Graphical	Task
149	Sum and product of an array	Task
148	String length	Task
147	Apply a callback to an array	Task
146	Loops/Foreach	Task
145	Character codes	Task
145	Loops/Do-while	Task
142	Hello world/Newline omission	Task
141	String case	Task
141	String concatenation	Task
141	Towers of Hanoi	Task
140	Generic swap	Task
140	Loops/N plus one half	Task
140	Palindrome detection	Task
138	Binary digits	Task
138	Integer sequence	Task
138	Sum of squares	Task
137	Hailstone sequence	Task
137	Loops/Break	Task
137	Sieve of Eratosthenes	Task
137	Sum of a series	Task
136	Filter	Task
135	Execute a system command	Task
134	Rot-13	Task
134	Tokenize a string	Task
133	Logical operations	Task
133	Sort an integer array	Task
132	Dot product	Task
131	Associative array/Creation	Task
131	Leap year	Task
129	Higher-order functions	Task
127	File input/output	Task
127	Remove duplicate elements	Task
127	Sorting algorithms/Bubble sort	Task
126	Determine if a string is numeric	Task
125	Array length	Task
124	Roman numerals/Encode	Task
124	User input/Text	Task
123	Empty string	Task
123	Guess the number	Task
123	Read entire file	Task
122	Create a file	Task
122	Factors of an integer	Task
122	Primality by trial division	Task
122	Quine	Task
121	Bitwise operations	Task
121	Hello world/Standard error	Task
121	System time	Task
120	Command-line arguments	Task
120	Sorting algorithms/Quicksort	Task
118	Caesar cipher	Task
117	Loop over multiple arrays simultaneously	Task
117	Sleep	Task
117	Substring	Task
116	Check that file exists	Task
116	Day of the week	Task
116	Happy numbers	Task
116	Mutual recursion	Task
116	Pascal's triangle	Task
116	Stack	Task
115	Least common multiple	Task
115	Literals/String	Task
113	Literals/Integer	Task
113	Loops/Continue	Task
112	Flatten a list	Task
112	Include a file	Task
112	Luhn test of credit card numbers	Task
111	Balanced brackets	Task
110	Associative array/Iteration	Task
110	Date format	Task
110	Ethiopian multiplication	Task
110	Knuth shuffle	Task
109	Averages/Root mean square	Task
109	File size	Task
109	Real constants and functions	Task
108	Compound data type	Task
108	Detect division by zero	Task
108	Read a file line by line	Task
108	Search a list	Task
108	Variables	Task
107	Program termination	Task
106	Anagrams	Task
106	Classes	Task
106	Delete a file	Task
106	Formatted numeric output	Task
106	Function composition	Task
106	Loops/Nested	Task
105	Averages/Median	Task
105	Hostname	Task
105	Rename a file	Task
104	ABC Problem	Task
104	Binary search	Task
104	Input loop	Task
104	Null object	Task
103	Case-sensitivity of identifiers	Task
103	Random numbers	Task
103	Return multiple values	Task
103	Sorting algorithms/Insertion sort	Task
102	Arithmetic/Complex	Task
102	Count in octal	Task
102	Hash from two arrays	Task
101	Guess the number/With feedback	Task
101	Multiplication tables	Task
101	N-queens problem	Task
100	Count occurrences of a substring	Task
100	Environment variables	Task
100	Generate lower case ASCII alphabet	Task
100	HTTP	Task
100	Matrix multiplication	Task
100	Pangram checker	Task
100	Pick random element	Task
99	Accumulator factory	Task
99	Horner's rule for polynomial evaluation	Task
99	Mandelbrot set	Task
99	Matrix transposition	Task
98	Assertions	Task
98	Create a two-dimensional array at runtime	Task
98	Find limit of recursion	Task
97	Averages/Pythagorean means	Task
97	Perfect numbers	Task
97	Roman numerals/Decode	Task
97	String matching	Task
97	Zero to the zero power	Task
96	Haversine formula	Task
96	Identity matrix	Task
95	Align columns	Task
95	Catalan numbers	Task
95	Evaluate binomial coefficients	Task
95	Exceptions	Task
95	Run-length encoding	Task
95	Strip a set of characters from a string	Task
95	Temperature conversion	Task
94	Infinity	Task
94	Substring/Top and tail	Task
93	Arithmetic-geometric mean	Task
93	Program name	Task
93	Regular expressions	Task
93	Strip whitespace from a string/Top and tail	Task
93	Variadic function	Task
93	Zig-zag matrix	Task
92	Combinations	Task
92	String interpolation (included)	Task
91	Letter frequency	Task
91	Trigonometric functions	Task
90	24 game	Task
90	Conway's Game of Life	Task
90	Prime decomposition	Task
90	Shell one-liner	Task
90	Short-circuit evaluation	Task
89	Sierpinski triangle	Task
89	Sorting algorithms/Merge sort	Task
89	Sorting algorithms/Selection sort	Task
88	Anonymous recursion	Task
88	Comma quibbling	Task
88	Enumerations	Task
88	Look-and-say sequence	Task
88	Middle three digits	Task
88	Ordered words	Task
88	Power set	Task
88	Random number generator (included)	Task
88	Reverse words in a string	Task
87	Collections	Task
87	One-dimensional cellular automata	Task
87	Queue/Definition	Task
87	Range extraction	Task
87	Sum multiples of 3 and 5	Task
86	Babbage problem	Task
86	Inheritance/Single	Task
86	Levenshtein distance	Task
86	Sequence of non-squares	Task
85	Averages/Mode	Task
85	Exponentiation operator	Task
85	First-class functions	Task
85	Interactive programming	Task
85	Walk a directory/Non-recursively	Task
84	Arbitrary-precision integers (included)	Task
84	Nth root	Task
84	Sort using a custom comparator	Task
84	Y combinator	Task
83	Evolutionary algorithm	Task
83	Five weekends	Task
83	MD5	Task
83	Permutations	Task
83	Sorting algorithms/Gnome sort	Task
82	Call a function	Task
82	Cumulative standard deviation	Task
82	Range expansion	Task
82	String prepend	Task
82	Symmetric difference	Task
82	Time a function	Task
81	Bulls and cows	Task
81	Create an HTML table	Task
81	String append	Task
80	Vector products	Task
79	Abstract type	Task
79	Averages/Simple moving average	Task
79	Forward difference	Task
79	Sum digits of an integer	Task
79	Window creation	Task
78	Dragon curve	Task
78	File modification time	Task
78	Monty Hall problem	Task
78	Price fraction	Task
78	Sierpinski carpet	Task
77	Greatest subsequential sum	Task
77	Hamming numbers	Task
77	Harshad or Niven series	Task
77	Langton's ant	Task
77	Sorting algorithms/Cocktail sort	Task
76	Digital root	Task
76	Entropy	Task
76	JSON	Task
76	Menu	Task
76	N'th	Task
76	Simple windowed application	Task
76	Sorting algorithms/Bogosort	Task
75	CSV data manipulation	Task
75	Closures/Value capture	Task
75	Hello world/Line printer	Task
75	Last Friday of each month	Task
75	Non-decimal radices/Convert	Task
75	Queue/Usage	Task
75	The Twelve Days of Christmas	Task
74	Execute Brain****	Task
74	Gray code	Task
74	Literals/Floating point	Task
74	Man or boy test	Task
74	Monte Carlo methods	Task
74	Show the epoch	Task
74	Web scraping	Task
73	CSV to HTML translation	Task
73	Floyd's triangle	Task
73	Introspection	Task
73	Map range	Task
73	Read a specific line from a file	Task
73	Set	Task
73	Spiral matrix	Task
73	Tree traversal	Task
73	Walk a directory/Recursively	Task
72	Amicable pairs	Task
72	Josephus problem	Task
72	Number reversal game	Task
72	SEDOLs	Task
72	Singly-linked list/Traversal	Task
72	Sort an array of composite structures	Task
72	String comparison	Task
72	Terminal control/Ringing the terminal bell	Task
72	URL decoding	Task
71	Abundant, deficient and perfect number classifications	Task
71	Bitmap	Task
71	Number names	Task
71	Sorting algorithms/Heapsort	Task
70	Address of a variable	Task
70	Count in factors	Task
70	Playing cards	Task
70	Sorting algorithms/Shell sort	Task
70	XML/Input	Task
69	Box the compass	Task
69	Catamorphism	Task
69	Concurrent computing	Task
69	Find the missing permutation	Task
69	Knapsack problem/0-1	Task
69	Linear congruential generator	Task
69	Special characters	Task
69	Strip comments from a string	Task
69	Top rank per group	Task
68	Date manipulation	Task
68	Kaprekar numbers	Task
68	List comprehensions	Task
68	Long multiplication	Task
68	Non-decimal radices/Output	Task
68	Polymorphism	Task
68	Take notes on the command line	Task
67	Dynamic variable names	Task
67	Fibonacci n-step number sequences	Task
67	Find common directory path	Task
67	Find the last Sunday of each month	Task
67	Order two numerical lists	Task
67	Roots of unity	Task
67	Singly-linked list/Element definition	Task
67	Sockets	Task
67	Soundex	Task
67	URL encoding	Task
66	Equilibrium index	Task
66	Stair-climbing puzzle	Task
66	Unicode variable names	Task
65	Bitmap/Bresenham's line algorithm	Task
65	Empty directory	Task
65	Flow-control structures	Task
65	Hello world/Newbie	Task
65	Keyboard input/Obtain a Y or N response	Task
65	Longest common subsequence	Task
65	Lucas-Lehmer test	Task
65	Multiple distinct objects	Task
65	Sorting algorithms/Comb sort	Task
65	Sorting algorithms/Counting sort	Task
65	Terminal control/Clear the screen	Task
65	Text processing/Max licenses in use	Task
65	Vigenère cipher	Task
65	Word wrap	Task
65	Write float arrays to a text file	Task
64	Compare a list of strings	Task
64	Count the coins	Task
64	Hello world/Web server	Task
64	Here document	Task
64	Jensen's Device	Task
64	Multifactorial	Task
64	Pythagorean triples	Task
64	Sorting algorithms/Stooge sort	Task
64	Trabb Pardo–Knuth algorithm	Task
63	Almost prime	Task
63	Anagrams/Deranged anagrams	Task
63	Averages/Mean angle	Task
63	Call an object method	Task
63	Convert seconds to compound duration	Task
63	Exceptions/Catch an exception thrown in a nested call	Task
63	Gamma function	Task
63	Hofstadter Q sequence	Task
63	Parsing/RPN calculator algorithm	Task
63	Read a configuration file	Task
63	Semordnilap	Task
63	Sort disjoint sublist	Task
63	Sudoku	Task
62	Enforced immutability	Task
62	Guess the number/With feedback (player)	Task
62	Largest int from concatenated ints	Task
62	Modular inverse	Task
62	Pi	Task
62	Runtime evaluation	Task
62	Sort stability	Task
61	Animation	Task
61	Call a foreign-language function	Task
61	HTTPS	Task
61	IBAN	Task
61	Numerical integration	Task
61	Quaternion type	Task
61	Self-describing numbers	Task
61	Strip control codes and extended characters from a string	Task
61	Zeckendorf number representation	Task
60	Catalan numbers/Pascal's triangle	Task
60	Closest-pair problem	Task
60	Constrained random points on a circle	Task
60	Execute HQ9+	Task
60	Named parameters	Task
60	Operator precedence	Task
60	Probabilistic choice	Task
60	Proper divisors	Task
59	Arithmetic/Rational	Task
59	Benford's law	Task
59	Draw a sphere	Task
59	Euler method	Task
59	Fork	Task
59	Four bit adder	Task
59	Jump anywhere	Task
59	Phrase reversals	Task
59	Remove lines from a file	Task
59	Rock-paper-scissors	Task
59	Special variables	Task
59	Variable size/Get	Task
58	Amb	Task
58	Currying	Task
58	Hofstadter-Conway $10,000 sequence	Task
58	Horizontal sundial calculations	Task
58	Magic squares of odd order	Task
58	One of n lines in a file	Task
58	Optional parameters	Task
58	Priority queue	Task
58	Roots of a quadratic function	Task
58	SHA-1	Task
58	Singly-linked list/Element insertion	Task
58	Undefined values	Task
57	CRC-32	Task
57	Combinations with repetitions	Task
57	Extend your language	Task
57	Fractal tree	Task
57	Roots of a function	Task
57	Sorting algorithms/Pancake sort	Task
57	Van der Corput sequence	Task
56	AKS test for primes	Task
56	Fast Fourier transform	Task
56	Host introspection	Task
56	Inheritance/Multiple	Task
56	Memory allocation	Task
56	Narcissistic decimal number	Task
56	Non-decimal radices/Input	Task
56	Runge-Kutta method	Task
56	SHA-256	Task
56	XML/Output	Task
55	24 game/Solve	Task
55	Best shuffle	Task
55	Calendar	Task
55	Cholesky decomposition	Task
55	Globally replace text in several files	Task
55	Knapsack problem/Unbounded	Task
55	Maze generation	Task
55	Partial function application	Task
55	Pernicious numbers	Task
55	Sorting algorithms/Sleep sort	Task
55	Write entire file	Task
54	Animate a pendulum	Task
54	Documentation	Task
54	Factors of a Mersenne number	Task
54	Huffman coding	Task
54	Morse code	Task
54	Old lady swallowed a fly	Task
54	Reduced row echelon form	Task
54	Test a function	Task
54	Write language name in 3D ASCII	Task
54	Yin and yang	Task
53	Euler's sum of powers conjecture	Task
53	Extreme floating point values	Task
53	Forest fire	Task
53	Knapsack problem/Continuous	Task
53	LZW compression	Task
53	Repeat	Draft
53	Rosetta Code/Rank languages by popularity	Task
53	Semiprime	Task
53	Sorting algorithms/Bead sort	Task
53	Stem-and-leaf plot	Task
52	Add a variable to a class instance at runtime	Task
52	Arithmetic evaluation	Task
52	Binary strings	Task
52	Dinesman's multiple-dwelling problem	Task
52	Fibonacci word	Task
52	Hash join	Task
52	Odd word problem	Task
52	Rep-string	Task
52	Sequence of primes by trial division	Task
52	Singleton	Task
52	Sorting algorithms/Permutation sort	Task
52	Synchronous concurrency	Task
52	XML/XPath	Task
51	Averages/Mean time of day	Task
51	Bitmap/Write a PPM file	Task
51	Brownian tree	Task
51	Compile-time calculation	Task
51	Continued fraction	Task
51	Miller–Rabin primality test	Task
51	Plot coordinate pairs	Task
51	Runtime evaluation/In an environment	Task
51	Scope modifiers	Task
51	Send email	Task
51	Stack traces	Task
51	Truncate a file	Task
51	Unix/ls	Task
50	Chinese remainder theorem	Task
50	Dutch national flag problem	Task
50	I before E except after C	Task
50	Pointers and references	Task
50	Random number generator (device)	Task
50	Split a character string based on change of character	Task
50	Tic-tac-toe	Task
49	Circles of given radius through two points	Task
49	DNS query	Task
49	Deal cards for FreeCell	Task
49	Define a primitive data type	Task
49	Delegates	Task
49	Draw a clock	Task
49	General FizzBuzz	Task
49	Generator/Exponential	Task
49	Knight's tour	Task
49	Truncatable primes	Task
49	Unbias a random generator	Task
48	Doubly-linked list/Element definition	Task
48	Draw a cuboid	Task
48	Grayscale image	Task
48	Handle a signal	Task
48	Integer overflow	Task
48	Maximum triangle path sum	Task
48	Modular exponentiation	Task
48	Modulinos	Draft
48	Multisplit	Task
48	Munching squares	Task
48	Nested function	Task
48	Non-continuous subsequences	Task
48	Statistics/Basic	Task
48	Terminal control/Display an extended character	Task
48	Unicode strings	Task
48	Wireworld	Task
47	JortSort	Task
47	Left factorials	Task
47	Mouse position	Task
47	Respond to an unknown method call	Task
47	Table creation/Postal addresses	Task
47	Thue-Morse	Task
47	Topological sort	Task
47	Two Sum	Draft
47	User input/Graphical	Task
47	XML/DOM serialization	Task
46	Emirp primes	Task
46	Inverted syntax	Task
46	Mad Libs	Task
46	Munchausen numbers	Task
46	Population count	Task
46	Seven-sided dice from five-sided dice	Task
46	Sierpinski triangle/Graphical	Task
46	Stable marriage problem	Task
46	Ternary logic	Task
46	Text processing/1	Task
46	Text processing/2	Task
45	First-class functions/Use numbers analogously	Task
45	Longest increasing subsequence	Task
45	Ludic numbers	Task
45	Matrix-exponentiation operator	Task
45	Terminal control/Cursor positioning	Task
44	9 billion names of God the integer	Task
44	Barnsley fern	Task
44	Bernoulli numbers	Task
44	Heronian triangles	Task
44	Iterated digits squaring	Task
44	Quickselect algorithm	Task
43	15 Puzzle Game	Task
43	Call a function in a shared library	Task
43	Dining philosophers	Task
43	Discordian date	Task
43	Echo server	Task
43	Exponentiation order	Task
43	Move-to-front algorithm	Task
43	Polymorphic copy	Task
43	Send an unknown method call	Task
43	Zebra puzzle	Task
42	Color of a screen pixel	Task
42	Convert decimal number to rational	Task
42	Department Numbers	Task
42	Doubly-linked list/Element insertion	Task
42	Doubly-linked list/Traversal	Task
42	FASTA format	Task
42	GUI component interaction	Task
42	Get system command output	Task
42	Hofstadter Figure-Figure sequences	Task
42	Make directory path	Task
42	Rosetta Code/Count examples	Task
42	Search a list of records	Task
42	Strip block comments	Task
42	Terminal control/Coloured text	Task
41	Bitmap/Read a PPM file	Task
41	Execute a Markov algorithm	Task
41	Extract file extension	Draft
41	Greyscale bars/Display	Task
41	Holidays related to Easter	Task
41	Keyboard input/Keypress check	Task
41	Longest string challenge	Task
41	Perfect shuffle	Task
41	Rate counter	Task
41	Smith numbers	Task
41	Subleq	Task
41	Universal Turing machine	Task
41	Verify distribution uniformity/Naive	Task
40	Atomic updates	Task
40	Determine if only one instance is running	Task
40	Last letter-first letter	Task
40	OpenGL	Task
40	Parsing/Shunting-yard algorithm	Task
40	Polynomial regression	Task
40	Sort three variables	Task
39	Bitmap/Flood fill	Task
39	Bitmap/Midpoint circle algorithm	Task
39	Digital root/Multiplicative digital root	Task
39	Element-wise operations	Task
39	Metaprogramming	Task
39	Pascal matrix generation	Task
39	Polynomial long division	Task
39	Twelve statements	Task
38	Calculating the value of e	Task
38	Doubly-linked list/Definition	Task
38	Extensible prime generator	Task
38	Farey sequence	Task
38	Fractran	Task
38	History variables	Task
38	Image noise	Task
38	Leonardo numbers	Task
38	Problem of Apollonius	Task
38	Secure temporary file	Task
38	Set consolidation	Task
38	Sorting algorithms/Strand sort	Task
38	Sparkline in unicode	Task
38	Subtractive generator	Task
38	Validate International Securities Identification Number	Task
38	Variable size/Set	Task
37	4-rings or 4-squares puzzle	Task
37	Active object	Task
37	Dijkstra's algorithm	Task
37	GUI enabling/disabling of controls	Task
37	MD5/Implementation	Task
37	Naming conventions	Task
37	Narcissist	Task
37	Parametric polymorphism	Task
37	Permutations by swapping	Task
37	Pig the dice game	Task
37	Stern-Brocot sequence	Task
36	2048	Task
36	Append a record to the end of a text file	Task
36	Archimedean spiral	Task
36	Base64 encode data	Draft
36	Bulls and cows/Player	Task
36	Calendar - for "REAL" programmers	Task
36	Colour bars/Display	Task
36	Generate Chess960 starting position	Task
36	Inverted index	Task
36	Knapsack problem/Bounded	Task
36	Kronecker product	Task
36	Longest common prefix	Draft
36	Percentage difference between images	Task
36	Permutations/Derangements	Task
36	Ray-casting algorithm	Task
36	Sum to 100	Task
36	Terminal control/Dimensions	Task
36	Tokenize a string with escaping	Task
35	Aliquot sequence classifications	Task
35	Average loop length	Task
35	CUSIP	Task
35	Knuth's algorithm S	Task
35	Matrix arithmetic	Task
35	Parallel calculations	Task
35	Password generator	Task
35	Sattolo cycle	Draft
35	Sorting algorithms/Radix sort	Task
35	Topswops	Task
35	Variable-length quantity	Task
35	Visualize a tree	Task
34	Angle difference between two bearings	Task
34	Balanced ternary	Task
34	Cartesian product of two or more lists	Task
34	Constrained genericity	Task
34	Deepcopy	Task
34	GUI/Maximum window dimensions	Task
34	Gaussian elimination	Task
34	Hickerson series of almost integers	Task
34	Jaro distance	Task
34	Keyboard input/Flush the keyboard buffer	Task
34	Pascal's triangle/Puzzle	Task
34	Self-referential sequence	Task
34	Statistics/Normal distribution	Task
34	Ulam spiral (for primes)	Task
34	Vector	Draft
33	Break OO privacy	Task
33	Carmichael 3 strong pseudoprimes	Task
33	Chaos game	Task
33	Combinations and permutations	Task
33	Events	Task
33	MD4	Task
33	Metered concurrency	Task
33	Multiline shebang	Draft
33	Order disjoint list items	Task
33	Parsing/RPN to infix conversion	Task
33	S-Expressions	Task
33	Speech synthesis	Task
33	Start from a main routine	Task
33	Taxicab numbers	Task
33	Test integerness	Task
33	Vampire number	Task
33	Voronoi diagram	Task
32	Permutation test	Task
31	Bitmap/Bézier curves/Cubic	Task
31	Casting out nines	Task
31	Elementary cellular automaton	Task
31	Find the intersection of two lines	Task
31	LU decomposition	Task
31	Ordered Partitions	Task
31	Permutations with repetitions	Draft
31	Scope/Function names and labels	Task
31	Terminal control/Inverse video	Task
31	Water collected between towers	Task
30	Bitmap/Histogram	Task
30	Fibonacci word/fractal	Task
30	Flipping bits game	Task
30	Floyd-Warshall algorithm	Task
30	Function prototype	Task
30	Input/Output for Pairs of Numbers	Draft
30	Longest Common Substring	Draft
30	Maze solving	Task
30	Minesweeper game	Task
30	Numerical integration/Gauss-Legendre Quadrature	Task
30	Object serialization	Task
30	Parametrized SQL statement	Task
30	Primorial numbers	Task
30	Terminal control/Hiding the cursor	Task
30	Terminal control/Unicode output	Task
29	Bitcoin/address validation	Task
29	Bitmap/Bézier curves/Quadratic	Task
29	Bitwise IO	Task
29	Colour pinstripe/Display	Task
29	Conjugate transpose	Task
29	File extension is in extensions list	Draft
29	Find palindromic numbers in both binary and ternary bases	Task
29	Input/Output for Lines of Text	Draft
29	Julia set	Task
29	Lychrel numbers	Task
29	Multiple regression	Task
29	Parse command-line arguments	Draft
29	Pathological floating point problems	Task
29	Pinstripe/Display	Task
29	Sailors, coconuts and a monkey problem	Task
29	Simple database	Task
29	Sutherland-Hodgman polygon clipping	Task
29	Topic variable	Task
28	Chinese zodiac	Task
28	Egyptian division	Task
28	Executable library	Task
28	Magic squares of doubly even order	Task
28	Musical scale	Draft
28	Penney's game	Task
28	QR decomposition	Task
28	Read a file character by character/UTF8	Draft
28	Rosetta Code/Find unimplemented tasks	Task
28	Sorting Algorithms/Circle Sort	Draft
28	Truth table	Task
28	Use another language to call a function	Task
27	Check output device is a terminal	Draft
27	Continued fraction/Arithmetic/Construct from rational number	Task
27	Memory layout of a data structure	Task
27	Multiplicative order	Task
27	Numeric error propagation	Task
27	RIPEMD-160	Task
27	Ranking methods	Task
27	Resistor mesh	Task
27	Solve a Hidato puzzle	Task
27	Subset sum problem	Draft
27	Text between	Draft
27	Zhang-Suen thinning algorithm	Task
26	Damm algorithm	Draft
26	Entropy/Narcissist	Task
26	First class environments	Task
26	Formal power series	Task
26	Keyboard macros	Task
26	Metronome	Task
26	RSA code	Task
26	Rosetta Code/Fix code tags	Task
26	Set puzzle	Task
26	Sort a list of object identifiers	Task
26	State name puzzle	Task
26	Straddling checkerboard	Task
26	Terminal control/Preserve screen	Task
26	Word count	Draft
26	Xiaolin Wu's line algorithm	Task
25	Arena storage pool	Task
25	Arithmetic-geometric mean/Calculate Pi	Task
25	Cramer's rule	Task
25	Currency	Task
25	Deconvolution/1D	Task
25	Distributed programming	Task
25	Execute SNUSP	Task
25	Pattern matching	Task
25	Pragmatic directives	Task
25	Prime conspiracy	Draft
25	Same Fringe	Task
25	Shoelace formula for polygonal area	Task
25	Stream Merge	Task
25	Table creation	Draft
25	Textonyms	Task
25	Update a configuration file	Task
24	Active Directory/Connect	Task
24	Brace expansion	Task
24	Check input device is a terminal	Draft
24	Checkpoint synchronization	Task
24	Death Star	Task
24	FTP	Task
24	Find first and last set bit of a long integer	Draft
24	Galton box animation	Task
24	Loops/Increment loop index within loop body	Task
24	Natural sorting	Task
24	Paraffins	Task
24	Pythagoras tree	Task
24	Rosetta Code/Find bare lang tags	Task
24	Sorting algorithms/Cycle sort	Draft
24	Substitution Cipher	Draft
24	Terminal control/Cursor movement	Task
24	UTF-8 encode and decode	Task
23	Check Machin-like formulas	Task
23	Create a file on magnetic tape	Task
23	Create an object at a given address	Task
23	Find largest left truncatable prime in a given base	Task
23	HTTPS/Authenticated	Task
23	Partition an integer X into N primes	Task
23	Solve the no connection puzzle	Task
23	Sorting algorithms/Patience sort	Draft
23	URL parser	Task
23	Window creation/X11	Task
23	Write to Windows event log	Task
22	Cycle detection	Draft
22	Decimal floating point number to binary	Draft
22	Go Fish	Task
22	Implicit type conversion	Draft
22	MAC Vendor Lookup	Task
22	Multi-dimensional array	Draft
22	Nautical bell	Task
22	Old Russian measure of length	Draft
22	Pentagram	Task
22	Poker hand analyser	Task
22	Reflection/List methods	Task
22	Reflection/List properties	Task
22	Safe addition	Task
22	Set of real numbers	Task
22	Simulate input/Keyboard	Task
22	Solve a Holy Knight's tour	Task
22	The ISAAC Cipher	Task
22	Verify distribution uniformity/Chi-squared test	Task
21	Chat server	Task
21	Egyptian fractions	Task
21	Honeycombs	Task
21	Image convolution	Task
21	Jewels and Stones	Draft
21	Negative base numbers	Task
21	Permutations/Rank of a permutation	Task
21	Ramsey's theorem	Draft
21	Sum and Product Puzzle	Task
21	Type detection	Draft
21	Welch's t-test	Draft
20	Birthday problem	Draft
20	Cantor set	Draft
20	Decision tables	Draft
20	Display a linear combination	Draft
20	Find the intersection of a line with a plane	Draft
20	Function frequency	Task
20	Idiomatically determine all the lowercase and uppercase letters	Draft
20	Main step of GOST 28147-89	Task
20	Make a backup file	Draft
20	Percolation/Mean run density	Task
20	Play recorded sounds	Task
20	Pythagorean quadruples	Task
20	RCRPG	Task
20	Superellipse	Task
20	Yahoo! search interface	Task
19	AVL tree	Task
19	Card shuffles	Draft
19	Cut a rectangle	Task
19	Dice game probabilities	Draft
19	Elliptic curve arithmetic	Draft
19	Euler's identity	Task
19	Hough transform	Task
19	Kahan summation	Draft
19	Parse an IP Address	Task
19	Polyspiral	Task
19	Record sound	Task
19	SOAP	Task
19	Thiele's interpolation formula	Task
19	Total circles area	Task
18	Bacon cipher	Draft
18	Faulhaber's formula	Draft
18	Fivenum	Draft
18	Integer roots	Draft
18	K-means++ clustering	Task
18	Kernighans large earthquake problem	Task
18	Modular arithmetic	Draft
18	Parallel Brute Force	Task
18	Plasma effect	Task
18	Playfair cipher	Draft
18	Sequence of primorial primes	Task
18	Solve a Numbrix puzzle	Task
18	Spinning rod animation/Text	Task
18	Window management	Task
18	World Cup group stage	Task
17	Active Directory/Search for a user	Task
17	Chebyshev coefficients	Draft
17	Create an object/Native demonstration	Draft
17	Draw a rotating cube	Task
17	Elementary cellular automaton/Random Number Generator	Draft
17	Idiomatically determine all the characters that can be used for symbols	Draft
17	Kronecker product based fractals	Task
17	Linux CPU utilization	Draft
17	Machine code	Task
17	Median filter	Task
17	Perlin noise	Draft
17	Pig the dice game/Player	Task
17	Simulate input/Mouse	Task
17	Sokoban	Task
17	Superpermutation minimisation	Task
17	The Name Game	Task
17	Video display modes	Task
16	Apply a digital filter (direct form II transposed)	Task
16	Levenshtein distance/Alignment	Draft
16	Magic squares of singly even order	Task
16	Recaman's sequence	Task
16	Shortest common supersequence	Task
16	Solve a Hopido puzzle	Task
16	Sort numbers lexicographically	Draft
16	Tonelli-Shanks algorithm	Draft
16	Word break problem	Draft
15	Assertions in design by contract	Draft
15	AudioAlarm	Draft
15	Bitcoin/public point to address	Task
15	Cipolla's algorithm	Draft
15	Compiler/lexical analyzer	Task
15	Deming's Funnel	Draft
15	Elementary cellular automaton/Infinite length	Draft
15	Faulhaber's triangle	Draft
15	Names to numbers	Draft
15	Nonoblock	Task
15	Reverse the gender of a string	Draft
15	Selective File Copy	Draft
15	Square but not cube	Draft
15	Vigenère cipher/Cryptanalysis	Task
14	A* search algorithm	Draft
14	Bilinear interpolation	Draft
14	Color quantization	Task
14	Commatizing numbers	Task
14	Generate random chess position	Draft
14	I.Q. Puzzle	Draft
14	Index finite lists of positive integers	Draft
14	Joystick position	Task
14	K-d tree	Task
14	List rooted trees	Draft
14	Native shebang	Draft
14	Readline interface	Draft
14	Reflection/Get source	Task
14	SQL-based authentication	Task
14	Show Ascii table	Draft
14	Sierpinski pentagon	Task
14	Square-free integers	Task
14	Vogel's approximation method	Task
13	Aspect Oriented Programming	Draft
13	Base58Check encoding	Draft
13	Bitmap/Read an image through a pipe	Task
13	Convex hull	Draft
13	Diversity prediction theorem	Draft
13	HTTPS/Client-authenticated	Task
13	Knuth's power tree	Draft
13	Lucky and even lucky numbers	Task
13	Mersenne primes	Draft
13	Percolation/Site percolation	Task
13	Ramer-Douglas-Peucker line simplification	Task
13	Rendezvous	Task
13	Separate the house number from the street name	Draft
13	Zeckendorf arithmetic	Task
12	Arithmetic coding/As a generalized change of radix	Draft
12	Compare sorting algorithms' performance	Task
12	Determine if two triangles overlap	Draft
12	Draw a pixel	Task
12	Find duplicate files	Draft
12	Magic 8-Ball	Draft
12	Markov chain text generator	Draft
12	Most frequent k chars distance	Draft
12	N-body problem	Draft
12	NYSIIS	Draft
12	Percolation/Bond percolation	Task
12	Percolation/Mean cluster density	Task
12	Polynomial synthetic division	Draft
12	RPG Attributes Generator	Task
12	Retrieve and search chat history	Task
12	Untrusted environment	Draft
11	Bitmap/PPM conversion through a pipe	Task
11	Compiler/code generator	Task
11	Compiler/virtual machine interpreter	Task
11	Eertree	Task
11	Find URI in text	Draft
11	Four is magic	Draft
11	Free polyominoes enumeration	Draft
11	Long primes	Task
11	Mind boggling card trick	Draft
11	Monads/List monad	Draft
11	Monads/Maybe monad	Draft
11	Montgomery reduction	Draft
11	Nonogram solver	Task
11	P-value correction	Draft
11	Proof	Draft
11	Self-hosting compiler	Draft
11	Terminal control/Positional read	Task
10	Abbreviations, automatic	Draft
10	Code segment unload	Draft
10	Color wheel	Draft
10	Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N)	Draft
10	Feigenbaum constant calculation	Draft
10	Kolakoski sequence	Task
10	Largest number divisible by its digits	Draft
10	Matrix chain multiplication	Draft
10	Orbital elements	Draft
10	Particle Swarm Optimization	Draft
10	Primes - allocate descendants to their ancestors	Task
10	Snake	Draft
10	Suffix tree	Draft
10	Topological sort/Extracted top item	Draft
10	Transportation problem	Draft
10	Word search	Task
9	Abbreviations, easy	Draft
9	Abbreviations, simple	Draft
9	Addition chains	Draft
9	Compiler/AST interpreter	Task
9	Compiler/syntax analyzer	Task
9	File size distribution	Draft
9	Finite state machine	Draft
9	Just in time processing on a character stream	Draft
9	Koch curve	Draft
9	OpenWebNet Password	Task
9	Perceptron	Draft
9	Spelling of ordinal numbers	Task
9	VList	Draft
9	XML Validation	Draft
8	Banker's algorithm	Draft
8	Burrows–Wheeler transform	Draft
8	Canny edge detector	Task
8	Data Encryption Standard	Draft
8	Generalised floating point addition	Draft
8	Hilbert curve	Draft
8	Hunt The Wumpus	Task
8	Kosaraju	Draft
8	Mastermind	Draft
8	Singly-linked list/Element removal	Draft
7	Chaocipher	Draft
7	Deconvolution/2D+	Task
7	EKG sequence convergence	Task
7	Gauss-Jordan matrix inversion	Draft
7	IPC via named pipe	Draft
7	Monads/Writer monad	Draft
7	Parse EBNF	Draft
7	Run as a daemon or service	Draft
7	Sunflower fractal	Draft
7	Time-based One-time Password Algorithm	Draft
7	User defined pipe and redirection operators	Draft
6	ASCII art diagram converter	Draft
6	Audio frequency generator	Draft
6	Catmull–Clark subdivision surface	Task
6	Church Numerals	Task
6	Draw pixel 2	Draft
6	Four is the number of letters in the ...	Task
6	French Republican calendar	Draft
6	Imaginary base numbers	Draft
6	Morpion solitaire	Draft
6	Pinstripe/Printer	Task
6	Snake And Ladder	Draft
6	Tetris	Draft
5	Colour pinstripe/Printer	Task
5	Combinations with repetitions/Square Digit Chain	Draft
5	Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)	Draft
5	Functional coverage tree	Draft
5	Nested templated data	Task
5	OpenGL Pixel Shader	Draft
5	Pentomino tiling	Draft
5	Railway circuit	Draft
5	Rosetta Code/Run examples	Draft
5	Sorting algorithms/Tree sort on a linked list	Draft
5	Starting a web browser	Draft
4	15 puzzle solver	Task
4	Addition-chain exponentiation	Draft
4	Fibonacci heap	Draft
4	Geometric algebra	Draft
4	Greed	Draft
4	One-time pad	Draft
4	OpenGL/Utah Teapot	Draft
4	Remote agent/Agent interface	Draft
4	Remote agent/Agent logic	Draft
4	Remote agent/Simulation	Draft
4	Simulated annealing	Draft
4	Spoof game	Draft
4	Tarjan	Draft
4	Using a Speech engine to highlight words	Draft
4	Using the Meetup.com API	Draft
3	21 Game	Draft
3	Boids	Draft
3	Hexapawn	Draft
3	Multidimensional Newton-Raphson method	Draft
3	OLE Automation	Task
3	Peano curve	Draft
3	Penrose tiling	Draft
3	Robots	Draft
3	Rosetta Code/Rank languages by number of users	Draft
3	Rosetta Code/Tasks without examples	Draft
3	Sine wave	Draft
3	Solve a Rubik's Cube	Draft
3	Text to HTML	Draft
2	16 Puzzle Game	Draft
2	Audio Overlap Loop	Draft
2	Chess player	Draft
2	External sort	Draft
2	I'm a software engineer, get me out of here	Draft
2	Recursive descent parser generator	Draft
2	Tamagotchi emulator	Draft
2	Vibrating rectangles	Draft
1	15 Puzzle Game in 3D	Draft
1	Black Box	Draft
1	Generalised floating point multiplication	Draft
1	IRC gateway	Draft
1	Process SMIL directives in XML data	Draft
1	Rosetta Code/List authors of task descriptions	Draft
1	Solving coin problems	Draft
1	Terminal control/Restricted width positional input/No wrapping	Draft
1	Terminal control/Restricted width positional input/With wrapping	Draft
0	Blackjack strategy	Draft
0	Chess player/Move generation	Draft
0	Chess player/Program options and user interface	Draft
0	Chess player/Search and evaluation	Draft
0	Rosetta Code/Tasks sorted by average lines of code	Draft
0	Ukkonen’s Suffix Tree Construction	Draft
0	Unicode polynomial equation	Draft
0	Waveform analysis/Doh ray me	Draft
0	Waveform analysis/Top and tail	Draft
0	Weather Routing	Draft