Rosetta Code/Count examples/Full list

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

As of 2018-05-19 :: Tasks: 874 :: Draft Tasks:223 :: Total Tasks: 1097 :: Total Examples: 56376

Count	Task	Category
386	Hello world/Text	Task
272	99 Bottles of Beer	Task
265	FizzBuzz	Task
264	100 doors	Task
241	Comments	Task
241	Fibonacci sequence	Task
231	Factorial	Task
216	Empty program	Task
214	A+B	Task
208	Function definition	Task
194	Ackermann function	Task
194	Loops/Infinite	Task
189	Loops/While	Task
187	Reverse a string	Task
185	Arrays	Task
177	Loops/For	Task
176	Greatest common divisor	Task
173	Arithmetic/Integer	Task
172	Conditional structures	Task
172	Greatest element of a list	Task
168	Averages/Arithmetic mean	Task
164	Integer comparison	Task
159	Increment a numerical string	Task
159	Repeat a string	Task
157	Loops/Downward for	Task
156	Array concatenation	Task
156	Boolean values	Task
152	Loops/For with a specified step	Task
151	Copy a string	Task
149	Even or odd	Task
148	Hello world/Graphical	Task
148	Sum and product of an array	Task
146	String length	Task
145	Loops/Foreach	Task
144	Apply a callback to an array	Task
143	Character codes	Task
143	Loops/Do-while	Task
141	String case	Task
139	Hello world/Newline omission	Task
138	Generic swap	Task
138	String concatenation	Task
137	Integer sequence	Task
137	Loops/N plus one half	Task
136	Hailstone sequence	Task
136	Palindrome detection	Task
136	Sum of a series	Task
136	Sum of squares	Task
136	Towers of Hanoi	Task
135	Binary digits	Task
135	Filter	Task
135	Loops/Break	Task
134	Execute a system command	Task
134	Rot-13	Task
131	Dot product	Task
131	Logical operations	Task
131	Sieve of Eratosthenes	Task
131	Sort an integer array	Task
129	Tokenize a string	Task
128	Associative array/Creation	Task
128	Leap year	Task
127	File input/output	Task
127	Higher-order functions	Task
126	Remove duplicate elements	Task
125	Determine if a string is numeric	Task
124	Array length	Task
124	Sorting algorithms/Bubble sort	Task
123	Roman numerals/Encode	Task
122	Primality by trial division	Task
122	Quine	Task
121	Empty string	Task
121	Factors of an integer	Task
121	Hello world/Standard error	Task
121	Read entire file	Task
121	User input/Text	Task
120	Command-line arguments	Task
120	Create a file	Task
119	Guess the number	Task
119	System time	Task
117	Bitwise operations	Task
117	Loop over multiple arrays simultaneously	Task
117	Sorting algorithms/Quicksort	Task
116	Sleep	Task
116	Substring	Task
115	Caesar cipher	Task
115	Day of the week	Task
115	Happy numbers	Task
114	Check that file exists	Task
114	Literals/String	Task
114	Mutual recursion	Task
113	Least common multiple	Task
113	Stack	Task
112	Literals/Integer	Task
112	Pascal's triangle	Task
111	Flatten a list	Task
111	Include a file	Task
111	Loops/Continue	Task
111	Luhn test of credit card numbers	Task
110	Balanced brackets	Task
110	Ethiopian multiplication	Task
109	Averages/Root mean square	Task
109	File size	Task
109	Knuth shuffle	Task
108	Compound data type	Task
108	Date format	Task
107	Associative array/Iteration	Task
107	Program termination	Task
107	Real constants and functions	Task
106	Read a file line by line	Task
106	Search a list	Task
106	Variables	Task
105	Anagrams	Task
105	Detect division by zero	Task
104	Averages/Median	Task
104	Classes	Task
104	Delete a file	Task
104	Formatted numeric output	Task
104	Rename a file	Task
103	Binary search	Task
103	Case-sensitivity of identifiers	Task
103	Function composition	Task
103	Hostname	Task
103	Input loop	Task
103	Loops/Nested	Task
103	Return multiple values	Task
102	ABC Problem	Task
102	Count in octal	Task
102	Null object	Task
102	Random numbers	Task
101	Arithmetic/Complex	Task
101	Hash from two arrays	Task
101	Sorting algorithms/Insertion sort	Task
100	Count occurrences of a substring	Task
100	Multiplication tables	Task
99	Environment variables	Task
99	Generate lower case ASCII alphabet	Task
99	Horner's rule for polynomial evaluation	Task
99	Matrix multiplication	Task
99	Matrix transposition	Task
99	N-queens problem	Task
99	Pick random element	Task
98	Guess the number/With feedback	Task
98	HTTP	Task
98	Mandelbrot set	Task
98	Pangram checker	Task
97	Create a two-dimensional array at runtime	Task
96	Accumulator factory	Task
96	Assertions	Task
96	Averages/Pythagorean means	Task
96	Haversine formula	Task
96	Identity matrix	Task
96	Perfect numbers	Task
96	Roman numerals/Decode	Task
96	String matching	Task
95	Align columns	Task
95	Evaluate binomial coefficients	Task
95	Find limit of recursion	Task
95	Strip a set of characters from a string	Task
94	Catalan numbers	Task
94	Temperature conversion	Task
94	Zero to the zero power	Task
93	Exceptions	Task
93	Run-length encoding	Task
93	Substring/Top and tail	Task
93	Variadic function	Task
92	Arithmetic-geometric mean	Task
92	Program name	Task
92	Regular expressions	Task
92	Zig-zag matrix	Task
91	Infinity	Task
91	Letter frequency	Task
91	Strip whitespace from a string/Top and tail	Task
90	Prime decomposition	Task
90	Shell one-liner	Task
90	String interpolation (included)	Task
90	Trigonometric functions	Task
89	24 game	Task
89	Combinations	Task
89	Conway's Game of Life	Task
88	Enumerations	Task
88	Middle three digits	Task
88	Power set	Task
88	Random number generator (included)	Task
88	Short-circuit evaluation	Task
88	Sierpinski triangle	Task
88	Sorting algorithms/Merge sort	Task
88	Sorting algorithms/Selection sort	Task
87	Collections	Task
87	One-dimensional cellular automata	Task
87	Ordered words	Task
86	Anonymous recursion	Task
86	Levenshtein distance	Task
86	Look-and-say sequence	Task
85	Comma quibbling	Task
85	Exponentiation operator	Task
85	Inheritance/Single	Task
85	Permutations	Task
85	Reverse words in a string	Task
85	Sequence of non-squares	Task
84	Arbitrary-precision integers (included)	Task
84	First-class functions	Task
84	Interactive programming	Task
84	Queue/Definition	Task
84	Range extraction	Task
84	Sum multiples of 3 and 5	Task
84	Walk a directory/Non-recursively	Task
83	MD5	Task
83	Sort using a custom comparator	Task
82	Averages/Mode	Task
82	Cumulative standard deviation	Task
82	Evolutionary algorithm	Task
82	Five weekends	Task
82	Nth root	Task
82	Range expansion	Task
81	Bulls and cows	Task
81	Sorting algorithms/Gnome sort	Task
81	Symmetric difference	Task
81	Y combinator	Task
80	Call a function	Task
80	Create an HTML table	Task
80	String prepend	Task
80	Time a function	Task
79	Averages/Simple moving average	Task
79	Babbage problem	Task
79	Forward difference	Task
79	String append	Task
79	Window creation	Task
78	Abstract type	Task
78	File modification time	Task
78	Monty Hall problem	Task
78	Price fraction	Task
77	Dragon curve	Task
77	Greatest subsequential sum	Task
77	Sierpinski carpet	Task
77	Sum digits of an integer	Task
77	Vector products	Task
76	Hamming numbers	Task
76	Langton's ant	Task
76	N'th	Task
75	Digital root	Task
75	Entropy	Task
75	Harshad or Niven series	Task
75	Menu	Task
75	Non-decimal radices/Convert	Task
75	Simple windowed application	Task
75	Sorting algorithms/Bogosort	Task
75	Sorting algorithms/Cocktail sort	Task
74	Hello world/Line printer	Task
74	JSON	Task
74	Last Friday of each month	Task
74	Monte Carlo methods	Task
74	Show the epoch	Task
74	The Twelve Days of Christmas	Task
74	Web scraping	Task
73	Closures/Value capture	Task
73	Execute Brain****	Task
73	Gray code	Task
73	Man or boy test	Task
73	Map range	Task
73	Queue/Usage	Task
73	Set	Task
73	Spiral matrix	Task
73	Tree traversal	Task
73	Walk a directory/Recursively	Task
72	CSV data manipulation	Task
72	CSV to HTML translation	Task
72	Floyd's triangle	Task
72	Introspection	Task
72	Literals/Floating point	Task
72	Read a specific line from a file	Task
72	SEDOLs	Task
72	Singly-linked list/Traversal	Task
71	Number reversal game	Task
71	Sort an array of composite structures	Task
71	String comparison	Task
71	URL decoding	Task
70	Address of a variable	Task
70	Bitmap	Task
70	Count in factors	Task
70	Josephus problem	Task
70	Number names	Task
70	Playing cards	Task
70	Sorting algorithms/Heapsort	Task
70	XML/Input	Task
69	Amicable pairs	Task
69	Linear congruential generator	Task
69	Top rank per group	Task
68	Abundant, deficient and perfect number classifications	Task
68	Catamorphism	Task
68	Concurrent computing	Task
68	Date manipulation	Task
68	Find the missing permutation	Task
68	Knapsack problem/0-1	Task
68	List comprehensions	Task
68	Long multiplication	Task
68	Special characters	Task
68	Take notes on the command line	Task
68	Terminal control/Ringing the terminal bell	Task
67	Box the compass	Task
67	Dynamic variable names	Task
67	Find common directory path	Task
67	Non-decimal radices/Output	Task
67	Roots of unity	Task
67	Singly-linked list/Element definition	Task
67	Sockets	Task
67	Sorting algorithms/Shell sort	Task
67	Strip comments from a string	Task
66	Equilibrium index	Task
66	Find the last Sunday of each month	Task
66	Kaprekar numbers	Task
66	Order two numerical lists	Task
66	Polymorphism	Task
66	Soundex	Task
66	Stair-climbing puzzle	Task
66	URL encoding	Task
66	Unicode variable names	Task
65	Bitmap/Bresenham's line algorithm	Task
65	Empty directory	Task
65	Longest common subsequence	Task
65	Lucas-Lehmer test	Task
65	Terminal control/Clear the screen	Task
64	Flow-control structures	Task
64	Hello world/Newbie	Task
64	Multifactorial	Task
64	Sorting algorithms/Counting sort	Task
64	Write float arrays to a text file	Task
63	Anagrams/Deranged anagrams	Task
63	Averages/Mean angle	Task
63	Exceptions/Catch an exception thrown in a nested call	Task
63	Hello world/Web server	Task
63	Here document	Task
63	Keyboard input/Obtain a Y or N response	Task
63	Multiple distinct objects	Task
63	Parsing/RPN calculator algorithm	Task
63	Read a configuration file	Task
63	Semordnilap	Task
63	Sorting algorithms/Comb sort	Task
63	Text processing/Max licenses in use	Task
63	Trabb Pardo–Knuth algorithm	Task
63	Word wrap	Task
62	Call an object method	Task
62	Compare a list of strings	Task
62	Convert seconds to compound duration	Task
62	Count the coins	Task
62	Fibonacci n-step number sequences	Task
62	Gamma function	Task
62	Guess the number/With feedback (player)	Task
62	Hofstadter Q sequence	Task
62	Jensen's Device	Task
62	Largest int from concatenated ints	Task
62	Pythagorean triples	Task
62	Sorting algorithms/Stooge sort	Task
62	Sudoku	Task
62	Vigenère cipher	Task
61	Animation	Task
61	Enforced immutability	Task
61	Numerical integration	Task
61	Runtime evaluation	Task
61	Sort disjoint sublist	Task
60	Call a foreign-language function	Task
60	Constrained random points on a circle	Task
60	Execute HQ9+	Task
60	Operator precedence	Task
60	Probabilistic choice	Task
60	Sort stability	Task
60	Strip control codes and extended characters from a string	Task
59	Almost prime	Task
59	Arithmetic/Rational	Task
59	Benford's law	Task
59	Closest-pair problem	Task
59	Euler method	Task
59	Fork	Task
59	Four bit adder	Task
59	Modular inverse	Task
59	Remove lines from a file	Task
58	HTTPS	Task
58	IBAN	Task
58	Named parameters	Task
58	One of n lines in a file	Task
58	Proper divisors	Draft
58	Quaternion type	Task
58	Roots of a quadratic function	Task
58	Self-describing numbers	Task
58	Singly-linked list/Element insertion	Task
58	Special variables	Task
58	Variable size/Get	Task
57	Amb	Task
57	Combinations with repetitions	Task
57	Horizontal sundial calculations	Task
57	Magic squares of odd order	Task
57	Optional parameters	Task
57	Phrase reversals	Task
57	Pi	Task
57	Priority queue	Task
57	Rock-paper-scissors	Task
57	Roots of a function	Task
57	SHA-1	Task
57	Undefined values	Task
57	Zeckendorf number representation	Task
56	Catalan numbers/Pascal's triangle	Task
56	Currying	Task
56	Draw a sphere	Task
56	Fractal tree	Task
56	Hofstadter-Conway $10,000 sequence	Task
56	Host introspection	Task
56	Jump anywhere	Task
56	Memory allocation	Task
56	Non-decimal radices/Input	Task
56	Runge-Kutta method	Task
56	Van der Corput sequence	Task
55	AKS test for primes	Task
55	Best shuffle	Task
55	CRC-32	Task
55	Cholesky decomposition	Task
55	Fast Fourier transform	Task
55	Globally replace text in several files	Task
55	Knapsack problem/Unbounded	Task
55	Narcissistic decimal number	Task
55	Partial function application	Task
55	Sorting algorithms/Pancake sort	Task
55	Sorting algorithms/Sleep sort	Task
55	XML/Output	Task
54	Extend your language	Task
54	Factors of a Mersenne number	Task
54	Inheritance/Multiple	Task
54	Maze generation	Task
54	SHA-256	Task
54	Test a function	Task
54	Write entire file	Task
53	24 game/Solve	Task
53	Animate a pendulum	Task
53	Calendar	Task
53	Documentation	Task
53	Extreme floating point values	Task
53	Forest fire	Task
53	Old lady swallowed a fly	Task
53	Pernicious numbers	Task
53	Reduced row echelon form	Task
53	Semiprime	Task
53	Sorting algorithms/Bead sort	Task
53	Stem-and-leaf plot	Task
53	Yin and yang	Task
52	Binary strings	Task
52	Fibonacci word	Task
52	Huffman coding	Task
52	Odd word problem	Task
52	Sequence of primes by trial division	Task
52	Singleton	Task
52	Synchronous concurrency	Task
52	Write language name in 3D ASCII	Task
52	XML/XPath	Task
51	Add a variable to a class instance at runtime	Task
51	Arithmetic evaluation	Task
51	Compile-time calculation	Task
51	Continued fraction	Task
51	Hash join	Task
51	Knapsack problem/Continuous	Task
51	LZW compression	Task
51	Miller–Rabin primality test	Task
51	Morse code	Task
51	Rep-string	Task
51	Repeat	Draft
51	Rosetta Code/Rank languages by popularity	Task
51	Runtime evaluation/In an environment	Task
51	Stack traces	Task
51	Truncate a file	Task
51	Unix/ls	Task
50	Averages/Mean time of day	Task
50	Bitmap/Write a PPM file	Task
50	Brownian tree	Task
50	Euler's sum of powers conjecture	Task
50	Plot coordinate pairs	Task
50	Scope modifiers	Task
50	Send email	Task
50	Sorting algorithms/Permutation sort	Task
49	Circles of given radius through two points	Task
49	Deal cards for FreeCell	Task
49	Dinesman's multiple-dwelling problem	Task
49	Draw a clock	Task
49	Knight's tour	Task
49	Tic-tac-toe	Task
49	Truncatable primes	Task
49	Unbias a random generator	Task
48	Doubly-linked list/Element definition	Task
48	Dutch national flag problem	Task
48	Generator/Exponential	Task
48	Maximum triangle path sum	Task
48	Modular exponentiation	Task
48	Modulinos	Draft
48	Pointers and references	Task
48	Random number generator (device)	Task
48	Statistics/Basic	Task
48	Terminal control/Display an extended character	Task
48	Unicode strings	Task
47	DNS query	Task
47	Handle a signal	Task
47	I before E except after C	Task
47	Integer overflow	Task
47	Left factorials	Task
47	Mouse position	Task
47	Multisplit	Task
47	Nested function	Task
47	Non-continuous subsequences	Task
47	Split a character string based on change of character	Task
47	Topological sort	Task
47	Wireworld	Task
46	Chinese remainder theorem	Task
46	Grayscale image	Task
46	Munchausen numbers	Task
46	Respond to an unknown method call	Task
46	Stable marriage problem	Task
46	Table creation/Postal addresses	Task
46	Text processing/1	Task
46	Text processing/2	Task
46	User input/Graphical	Task
46	XML/DOM serialization	Task
45	Define a primitive data type	Task
45	Draw a cuboid	Task
45	Emirp primes	Task
45	First-class functions/Use numbers analogously	Task
45	General FizzBuzz	Task
45	JortSort	Task
45	Ludic numbers	Task
45	Mad Libs	Task
45	Seven-sided dice from five-sided dice	Task
45	Sierpinski triangle/Graphical	Task
45	Terminal control/Cursor positioning	Task
45	Ternary logic	Task
45	Thue-Morse	Task
44	9 billion names of God the integer	Task
44	Bernoulli numbers	Task
44	Delegates	Task
44	Heronian triangles	Task
44	Matrix-exponentiation operator	Task
44	Munching squares	Task
44	Population count	Task
43	Call a function in a shared library	Task
43	Dining philosophers	Task
43	Discordian date	Task
43	Echo server	Task
43	Longest increasing subsequence	Task
43	Quickselect algorithm	Task
43	Send an unknown method call	Task
42	15 Puzzle Game	Task
42	Doubly-linked list/Element insertion	Task
42	Inverted syntax	Task
42	Move-to-front algorithm	Task
42	Polymorphic copy	Task
42	Two Sum	Draft
41	Color of a screen pixel	Task
41	Convert decimal number to rational	Task
41	Doubly-linked list/Traversal	Task
41	Execute a Markov algorithm	Task
41	Exponentiation order	Task
41	Get system command output	Task
41	Hofstadter Figure-Figure sequences	Task
41	Holidays related to Easter	Task
41	Iterated digits squaring	Task
41	Longest string challenge	Task
41	Make directory path	Task
41	Rate counter	Task
41	Rosetta Code/Count examples	Task
41	Strip block comments	Task
40	Bitmap/Read a PPM file	Task
40	FASTA format	Task
40	GUI component interaction	Task
40	Greyscale bars/Display	Task
40	Keyboard input/Keypress check	Task
40	Last letter-first letter	Task
40	Parsing/Shunting-yard algorithm	Task
40	Polynomial regression	Task
40	Terminal control/Coloured text	Task
40	Universal Turing machine	Task
40	Verify distribution uniformity/Naive	Task
39	Atomic updates	Task
39	Barnsley fern	Task
39	Bitmap/Flood fill	Task
39	Bitmap/Midpoint circle algorithm	Task
39	Department Numbers	Task
39	Extract file extension	Draft
39	OpenGL	Task
39	Search a list of records	Task
39	Zebra puzzle	Task
38	Determine if only one instance is running	Task
38	Digital root/Multiplicative digital root	Task
38	Perfect shuffle	Task
38	Polynomial long division	Task
38	Problem of Apollonius	Task
38	Secure temporary file	Task
38	Set consolidation	Task
38	Smith numbers	Task
38	Sorting algorithms/Strand sort	Task
38	Sparkline in unicode	Task
38	Subleq	Task
37	Active object	Task
37	Doubly-linked list/Definition	Task
37	Element-wise operations	Task
37	Extensible prime generator	Task
37	Fractran	Task
37	Image noise	Task
37	MD5/Implementation	Task
37	Metaprogramming	Task
37	Narcissist	Task
37	Parametric polymorphism	Task
37	Pig the dice game	Task
37	Subtractive generator	Task
37	Variable size/Set	Task
36	Append a record to the end of a text file	Task
36	Dijkstra's algorithm	Draft
36	Farey sequence	Task
36	Generate Chess960 starting position	Task
36	History variables	Task
36	Inverted index	Task
36	Knapsack problem/Bounded	Task
36	Kronecker product	Task
36	Pascal matrix generation	Task
36	Percentage difference between images	Task
36	Permutations by swapping	Task
36	Ray-casting algorithm	Task
36	Sort three variables	Task
36	Stern-Brocot sequence	Task
36	Terminal control/Dimensions	Task
36	Twelve statements	Task
35	Average loop length	Task
35	Base64 encode data	Draft
35	Bulls and cows/Player	Task
35	Calendar - for "REAL" programmers	Task
35	Colour bars/Display	Task
35	GUI enabling/disabling of controls	Task
35	Leonardo numbers	Task
35	Matrix arithmetic	Task
35	Parallel calculations	Task
35	Password generator	Task
35	Permutations/Derangements	Task
35	Sum to 100	Task
35	Tokenize a string with escaping	Task
35	Topswops	Task
35	Validate International Securities Identification Number	Task
35	Variable-length quantity	Task
35	Visualize a tree	Task
34	2048	Task
34	Archimedean spiral	Task
34	Balanced ternary	Task
34	Constrained genericity	Task
34	Deepcopy	Task
34	Jaro distance	Task
34	Longest common prefix	Draft
34	Self-referential sequence	Task
34	Sorting algorithms/Radix sort	Task
34	Statistics/Normal distribution	Task
33	4-rings or 4-squares puzzle	Task
33	Carmichael 3 strong pseudoprimes	Task
33	Combinations and permutations	Task
33	Events	Task
33	Gaussian elimination	Task
33	Hickerson series of almost integers	Task
33	Multiline shebang	Draft
33	Naming conventions	Task
33	Parsing/RPN to infix conversion	Task
33	S-Expressions	Task
33	Sattolo cycle	Draft
33	Start from a main routine	Task
33	Test integerness	Task
33	Ulam spiral (for primes)	Task
33	Vampire number	Task
32	Aliquot sequence classifications	Task
32	Break OO privacy	Task
32	GUI/Maximum window dimensions	Task
32	Keyboard input/Flush the keyboard buffer	Task
32	Knuth's algorithm S	Task
32	Metered concurrency	Task
32	Order disjoint list items	Task
32	Pascal's triangle/Puzzle	Task
32	Speech synthesis	Task
32	Vector	Draft
32	Voronoi diagram	Task
31	Bitmap/Bézier curves/Cubic	Task
31	CUSIP	Task
31	Cartesian product of two or more lists	Task
31	Chaos game	Task
31	MD4	Task
31	Ordered Partitions	Task
31	Permutation test	Task
31	Scope/Function names and labels	Task
31	Taxicab numbers	Task
31	Terminal control/Inverse video	Task
30	Casting out nines	Task
30	Fibonacci word/fractal	Task
30	Find the intersection of two lines	Task
30	LU decomposition	Task
30	Maze solving	Task
30	Numerical integration/Gauss-Legendre Quadrature	Task
30	Permutations with repetitions	Draft
29	Bitmap/Bézier curves/Quadratic	Task
29	Bitmap/Histogram	Task
29	Conjugate transpose	Task
29	Flipping bits game	Task
29	Function prototype	Task
29	Input/Output for Pairs of Numbers	Draft
29	Lychrel numbers	Task
29	Object serialization	Task
29	Primorial numbers	Task
29	Simple database	Task
29	Terminal control/Hiding the cursor	Task
29	Topic variable	Task
28	Bitcoin/address validation	Task
28	Bitwise IO	Task
28	Elementary cellular automaton	Task
28	Executable library	Task
28	Input/Output for Lines of Text	Draft
28	Julia set	Task
28	Minesweeper game	Task
28	Multiple regression	Task
28	Parametrized SQL statement	Task
28	Parse command-line arguments	Draft
28	Penney's game	Task
28	Sutherland-Hodgman polygon clipping	Task
28	Terminal control/Unicode output	Task
28	Water collected between towers	Task
27	Colour pinstripe/Display	Task
27	File extension is in extensions list	Draft
27	Floyd-Warshall algorithm	Task
27	Pathological floating point problems	Task
27	Pinstripe/Display	Task
27	Sailors, coconuts and a monkey problem	Task
26	Continued fraction/Arithmetic/Construct from rational number	Task
26	Formal power series	Task
26	Memory layout of a data structure	Task
26	Numeric error propagation	Task
26	RSA code	Task
26	Ranking methods	Task
26	Rosetta Code/Find unimplemented tasks	Task
26	Set puzzle	Task
26	Solve a Hidato puzzle	Task
26	Sorting Algorithms/Circle Sort	Draft
26	State name puzzle	Task
26	Subset sum problem	Draft
26	Truth table	Task
26	Use another language to call a function	Task
26	Xiaolin Wu's line algorithm	Task
26	Zhang-Suen thinning algorithm	Task
25	Arena storage pool	Task
25	Check output device is a terminal	Draft
25	Distributed programming	Task
25	Entropy/Narcissist	Task
25	Execute SNUSP	Task
25	Find palindromic numbers in both binary and ternary bases	Task
25	First class environments	Task
25	Longest Common Substring	Draft
25	Magic squares of doubly even order	Task
25	Multiplicative order	Task
25	Pattern matching	Task
25	Pragmatic directives	Task
25	QR decomposition	Task
25	RIPEMD-160	Task
25	Read a file character by character/UTF8	Draft
25	Resistor mesh	Task
25	Rosetta Code/Fix code tags	Task
25	Same Fringe	Task
25	Straddling checkerboard	Task
25	Textonyms	Task
25	Update a configuration file	Task
24	Active Directory/Connect	Task
24	Angle difference between two bearings	Task
24	Brace expansion	Task
24	Chinese zodiac	Task
24	Cramer's rule	Task
24	Deconvolution/1D	Task
24	Egyptian division	Task
24	Find first and last set bit of a long integer	Draft
24	Keyboard macros	Task
24	Metronome	Task
24	Musical scale	Draft
24	Natural sorting	Task
24	Rosetta Code/Find bare lang tags	Task
24	Shoelace formula for polygonal area	Task
24	Sorting algorithms/Cycle sort	Draft
23	Arithmetic-geometric mean/Calculate Pi	Task
23	Check input device is a terminal	Draft
23	Checkpoint synchronization	Task
23	Create a file on magnetic tape	Task
23	Death Star	Task
23	FTP	Task
23	Paraffins	Task
23	Pythagoras tree	Task
23	Solve the no connection puzzle	Task
23	Sort a list of object identifiers	Task
23	Sorting algorithms/Patience sort	Draft
23	Stream Merge	Task
23	Text between	Draft
23	UTF-8 encode and decode	Task
23	Window creation/X11	Task
23	Write to Windows event log	Task
22	Check Machin-like formulas	Task
22	Currency	Draft
22	Galton box animation	Task
22	Go Fish	Task
22	Prime conspiracy	Draft
22	Substitution Cipher	Draft
22	Table creation	Draft
22	URL parser	Task
22	Word count	Draft
21	Chat server	Task
21	Create an object at a given address	Task
21	Damm algorithm	Draft
21	Find largest left truncatable prime in a given base	Task
21	HTTPS/Authenticated	Task
21	Honeycombs	Task
21	Implicit type conversion	Draft
21	MAC Vendor Lookup	Task
21	Multi-dimensional array	Draft
21	Nautical bell	Task
21	Safe addition	Task
21	Set of real numbers	Task
21	Simulate input/Keyboard	Task
21	Solve a Holy Knight's tour	Task
21	Sum and Product Puzzle	Task
21	Terminal control/Cursor movement	Task
21	Terminal control/Preserve screen	Task
21	The ISAAC Cipher	Task
21	Verify distribution uniformity/Chi-squared test	Task
21	Welch's t-test	Draft
20	Birthday problem	Draft
20	Cycle detection	Draft
20	Decimal floating point number to binary	Draft
20	Function frequency	Task
20	Image convolution	Task
20	Partition an integer X into N primes	Task
20	Pentagram	Task
20	Percolation/Mean run density	Task
20	Permutations/Rank of a permutation	Task
20	Play recorded sounds	Task
20	RCRPG	Task
20	Ramsey's theorem	Draft
20	Yahoo! search interface	Task
19	Cut a rectangle	Task
19	Decision tables	Draft
19	Elliptic curve arithmetic	Draft
19	Idiomatically determine all the lowercase and uppercase letters	Draft
19	Main step of GOST 28147-89	Task
19	Old Russian measure of length	Draft
19	Poker hand analyser	Task
19	Record sound	Task
19	Reflection/List methods	Task
19	SOAP	Task
19	Superellipse	Task
19	Thiele's interpolation formula	Task
19	Total circles area	Task
19	Type detection	Draft
18	AVL tree	Task
18	Dice game probabilities	Draft
18	Egyptian fractions	Task
18	Hough transform	Task
18	K-means++ clustering	Task
18	Make a backup file	Draft
18	Parallel Brute Force	Task
18	Parse an IP Address	Task
18	Polyspiral	Task
18	Pythagorean quadruples	Task
18	Window management	Task
17	Bacon cipher	Draft
17	Display a linear combination	Draft
17	Draw a rotating cube	Task
17	Integer roots	Draft
17	Kahan summation	Draft
17	Median filter	Task
17	Modular arithmetic	Draft
17	Pig the dice game/Player	Task
17	Plasma effect	Task
17	Playfair cipher	Draft
17	Reflection/List properties	Task
17	Sequence of primorial primes	Draft
17	Simulate input/Mouse	Task
17	Sokoban	Task
16	Active Directory/Search for a user	Task
16	Elementary cellular automaton/Random Number Generator	Draft
16	Euler's identity	Draft
16	Idiomatically determine all the characters that can be used for symbols	Draft
16	Kronecker product based fractals	Task
16	Linux CPU utilization	Draft
16	Perlin noise	Draft
16	Solve a Numbrix puzzle	Task
15	Card shuffles	Draft
15	Compiler/lexical analyzer	Task
15	Faulhaber's formula	Draft
15	Find the intersection of a line with a plane	Draft
15	Levenshtein distance/Alignment	Draft
15	Machine code	Task
15	Solve a Hopido puzzle	Task
15	Tonelli-Shanks algorithm	Draft
14	A* search algorithm	Draft
14	Apply a digital filter (direct form II transposed)	Task
14	Assertions in design by contract	Draft
14	AudioAlarm	Draft
14	Bitcoin/public point to address	Task
14	Chebyshev coefficients	Draft
14	Color quantization	Task
14	Deming's Funnel	Draft
14	Elementary cellular automaton/Infinite length	Draft
14	Fivenum	Draft
14	Index finite lists of positive integers	Draft
14	K-d tree	Task
14	Magic squares of singly even order	Task
14	Names to numbers	Draft
14	Native shebang	Draft
14	Negative base numbers	Task
14	Reflection/Get source	Task
14	Reverse the gender of a string	Draft
14	SQL-based authentication	Task
14	Selective File Copy	Draft
14	Vigenère cipher/Cryptanalysis	Task
14	World Cup group stage	Task
13	Bitmap/Read an image through a pipe	Task
13	Calculating the value of e	Draft
13	Cipolla's algorithm	Draft
13	Convex hull	Draft
13	Create an object/Native demonstration	Draft
13	Faulhaber's triangle	Draft
13	Nonoblock	Task
13	Percolation/Site percolation	Task
13	Rendezvous	Task
13	Sierpinski pentagon	Task
13	Superpermutation minimisation	Draft
13	Video display modes	Task
13	Word break problem	Draft
12	Compare sorting algorithms' performance	Task
12	Diversity prediction theorem	Draft
12	HTTPS/Client-authenticated	Task
12	I.Q. Puzzle	Draft
12	Joystick position	Task
12	Lucky and even lucky numbers	Task
12	Mersenne primes	Draft
12	Most frequent k chars distance	Draft
12	NYSIIS	Draft
12	Percolation/Bond percolation	Task
12	Percolation/Mean cluster density	Task
12	Ramer-Douglas-Peucker line simplification	Task
12	Retrieve and search chat history	Task
12	Untrusted environment	Draft
12	Vogel's approximation method	Task
11	Arithmetic coding/As a generalized change of radix	Draft
11	Bilinear interpolation	Draft
11	Bitmap/PPM conversion through a pipe	Task
11	Find URI in text	Draft
11	Jewels and Stones	Draft
11	Knuth's power tree	Draft
11	List rooted trees	Draft
11	Monads/Maybe monad	Draft
11	N-body problem	Draft
11	Polynomial synthetic division	Draft
11	Proof	Draft
11	Separate the house number from the street name	Draft
11	Shortest common supersequence	Draft
11	Terminal control/Positional read	Task
11	The Name Game	Task
10	Aspect Oriented Programming	Draft
10	Base58Check encoding	Draft
10	Cantor set	Draft
10	Color wheel	Draft
10	Commatizing numbers	Task
10	Compiler/code generator	Task
10	Compiler/virtual machine interpreter	Task
10	Determine if two triangles overlap	Draft
10	Find duplicate files	Draft
10	Generate random chess position	Draft
10	Kernighans large earthquake problem	Task
10	Loops/Increment loop index within loop body	Task
10	Markov chain text generator	Draft
10	Monads/List monad	Draft
10	Nonogram solver	Task
10	P-value correction	Draft
10	Readline interface	Draft
10	Topological sort/Extracted top item	Draft
10	Zeckendorf arithmetic	Task
9	Abbreviations, automatic	Draft
9	Code segment unload	Draft
9	Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N)	Draft
9	Eertree	Task
9	File size distribution	Draft
9	Finite state machine	Draft
9	Four is magic	Draft
9	Free polyominoes enumeration	Draft
9	Matrix chain multiplication	Draft
9	Montgomery reduction	Draft
9	Primes - allocate descendants to their ancestors	Task
9	Self-hosting compiler	Draft
9	Snake	Draft
9	Suffix tree	Draft
9	Transportation problem	Draft
9	VList	Draft
9	Word search	Task
9	XML Validation	Draft
8	Canny edge detector	Task
8	Compiler/AST interpreter	Task
8	Compiler/syntax analyzer	Task
8	Hunt The Wumpus	Task
8	Kosaraju	Draft
8	Largest number divisible by its digits	Draft
8	Perceptron	Draft
7	Abbreviations, easy	Draft
7	Deconvolution/2D+	Task
7	Feigenbaum constant calculation	Draft
7	Gauss-Jordan matrix inversion	Draft
7	Generalised floating point addition	Draft
7	IPC via named pipe	Draft
7	Magic 8-Ball	Draft
7	Mastermind	Draft
7	Monads/Writer monad	Draft
7	Orbital elements	Draft
7	Particle Swarm Optimization	Draft
7	Run as a daemon or service	Draft
7	Singly-linked list/Element removal	Draft
7	Time-based One-time Password Algorithm	Draft
7	User defined pipe and redirection operators	Draft
6	Abbreviations, simple	Draft
6	Addition chains	Draft
6	Banker's algorithm	Draft
6	Catmull–Clark subdivision surface	Task
6	Data Encryption Standard	Draft
6	French Republican calendar	Draft
6	Hilbert curve	Draft
6	Just in time processing on a character stream	Draft
6	Morpion solitaire	Draft
6	OpenWebNet Password	Draft
6	Parse EBNF	Draft
5	ASCII art diagram converter	Draft
5	Audio frequency generator	Draft
5	Chaocipher	Draft
5	Combinations with repetitions/Square Digit Chain	Draft
5	Imaginary base numbers	Draft
5	Koch curve	Draft
5	OpenGL Pixel Shader	Draft
5	Pinstripe/Printer	Task
5	Railway circuit	Draft
5	Rosetta Code/Run examples	Draft
5	Snake And Ladder	Draft
5	Sorting algorithms/Tree sort on a linked list	Draft
5	Spelling of ordinal numbers	Draft
5	Starting a web browser	Draft
4	15 puzzle solver	Task
4	Addition-chain exponentiation	Draft
4	Colour pinstripe/Printer	Task
4	Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)	Draft
4	Draw a pixel	Task
4	Fibonacci heap	Draft
4	Four is the number of letters in the ...	Draft
4	Functional coverage tree	Draft
4	Geometric algebra	Draft
4	Greed	Draft
4	One-time pad	Draft
4	Pentomino tiling	Draft
4	Remote agent/Agent interface	Draft
4	Remote agent/Agent logic	Draft
4	Remote agent/Simulation	Draft
4	Spoof game	Draft
4	Tarjan	Draft
4	Tetris	Draft
4	Using a Speech engine to highlight words	Draft
4	Using the Meetup.com API	Draft
3	Boids	Draft
3	Hexapawn	Draft
3	Multidimensional Newton-Raphson method	Draft
3	OpenGL/Utah Teapot	Draft
3	Robots	Draft
3	Rosetta Code/Rank languages by number of users	Draft
3	Rosetta Code/Tasks without examples	Draft
3	Simulated annealing	Draft
3	Text to HTML	Draft
2	Audio Overlap Loop	Draft
2	Chess player	Draft
2	External sort	Draft
2	OLE Automation	Task
2	Penrose tiling	Draft
2	Recursive descent parser generator	Draft
2	Solve a Rubik's Cube	Draft
2	Tamagotchi emulator	Draft
1	15 Puzzle Game in 3D	Draft
1	16 Puzzle Game	Draft
1	Black Box	Draft
1	Draw pixel 2	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	Sine wave	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