Count |
Task |
Category
|
401
|
Hello world/Text
|
Task
|
277
|
99 Bottles of Beer
|
Task
|
275
|
FizzBuzz
|
Task
|
270
|
100 doors
|
Task
|
248
|
Fibonacci sequence
|
Task
|
245
|
Comments
|
Task
|
235
|
Factorial
|
Task
|
222
|
Empty program
|
Task
|
219
|
A+B
|
Task
|
212
|
Function definition
|
Task
|
199
|
Loops/Infinite
|
Task
|
196
|
Ackermann function
|
Task
|
193
|
Reverse a string
|
Task
|
191
|
Loops/While
|
Task
|
188
|
Arrays
|
Task
|
181
|
Loops/For
|
Task
|
179
|
Conditional structures
|
Task
|
179
|
Greatest common divisor
|
Task
|
177
|
Greatest element of a list
|
Task
|
175
|
Arithmetic/Integer
|
Task
|
168
|
Averages/Arithmetic mean
|
Task
|
167
|
Integer comparison
|
Task
|
164
|
Array concatenation
|
Task
|
163
|
Repeat a string
|
Task
|
161
|
Increment a numerical string
|
Task
|
160
|
Boolean values
|
Task
|
160
|
Loops/Downward for
|
Task
|
155
|
Loops/For with a specified step
|
Task
|
154
|
Hello world/Graphical
|
Task
|
153
|
Copy a string
|
Task
|
153
|
Even or odd
|
Task
|
151
|
Sum and product of an array
|
Task
|
150
|
String length
|
Task
|
148
|
Apply a callback to an array
|
Task
|
146
|
Character codes
|
Task
|
146
|
Loops/Do-while
|
Task
|
146
|
Loops/Foreach
|
Task
|
144
|
Towers of Hanoi
|
Task
|
143
|
Hello world/Newline omission
|
Task
|
142
|
Generic swap
|
Task
|
142
|
Integer sequence
|
Task
|
142
|
String concatenation
|
Task
|
141
|
Loops/N plus one half
|
Task
|
141
|
String case
|
Task
|
140
|
Palindrome detection
|
Task
|
139
|
Binary digits
|
Task
|
139
|
Hailstone sequence
|
Task
|
139
|
Loops/Break
|
Task
|
139
|
Sieve of Eratosthenes
|
Task
|
138
|
Sum of a series
|
Task
|
138
|
Sum of squares
|
Task
|
137
|
Filter
|
Task
|
135
|
Dot product
|
Task
|
135
|
Execute a system command
|
Task
|
135
|
Rot-13
|
Task
|
134
|
Logical operations
|
Task
|
134
|
Sort an integer array
|
Task
|
134
|
Tokenize a string
|
Task
|
133
|
Leap year
|
Task
|
131
|
Associative array/Creation
|
Task
|
130
|
Higher-order functions
|
Task
|
129
|
Remove duplicate elements
|
Task
|
128
|
File input/output
|
Task
|
127
|
Array length
|
Task
|
126
|
Determine if a string is numeric
|
Task
|
126
|
Sorting algorithms/Bubble sort
|
Task
|
125
|
User input/Text
|
Task
|
124
|
Bitwise operations
|
Task
|
124
|
Quine
|
Task
|
124
|
Read entire file
|
Task
|
124
|
Roman numerals/Encode
|
Task
|
123
|
Create a file
|
Task
|
123
|
Empty string
|
Task
|
123
|
Guess the number
|
Task
|
123
|
Primality by trial division
|
Task
|
123
|
System time
|
Task
|
122
|
Factors of an integer
|
Task
|
122
|
Hello world/Standard error
|
Task
|
120
|
Command-line arguments
|
Task
|
120
|
Sorting algorithms/Quicksort
|
Task
|
119
|
Caesar cipher
|
Task
|
118
|
Literals/String
|
Task
|
118
|
Pascal's triangle
|
Task
|
117
|
Check that file exists
|
Task
|
117
|
Day of the week
|
Task
|
117
|
Loop over multiple arrays simultaneously
|
Task
|
117
|
Mutual recursion
|
Task
|
117
|
Sleep
|
Task
|
117
|
Stack
|
Task
|
116
|
Happy numbers
|
Task
|
116
|
Substring
|
Task
|
115
|
Least common multiple
|
Task
|
114
|
Literals/Integer
|
Task
|
114
|
Loops/Continue
|
Task
|
113
|
Balanced brackets
|
Task
|
113
|
Flatten a list
|
Task
|
113
|
Luhn test of credit card numbers
|
Task
|
112
|
Include a file
|
Task
|
111
|
Date format
|
Task
|
111
|
Knuth shuffle
|
Task
|
110
|
Associative array/Iteration
|
Task
|
110
|
Ethiopian multiplication
|
Task
|
109
|
File size
|
Task
|
109
|
Read a file line by line
|
Task
|
109
|
Real constants and functions
|
Task
|
108
|
Averages/Root mean square
|
Task
|
108
|
Compound data type
|
Task
|
108
|
Detect division by zero
|
Task
|
108
|
Program termination
|
Task
|
108
|
Search a list
|
Task
|
108
|
Variables
|
Task
|
107
|
Formatted numeric output
|
Task
|
107
|
Loops/Nested
|
Task
|
106
|
Anagrams
|
Task
|
106
|
Classes
|
Task
|
106
|
Function composition
|
Task
|
106
|
N-queens problem
|
Task
|
105
|
ABC Problem
|
Task
|
105
|
Averages/Median
|
Task
|
105
|
Delete a file
|
Task
|
105
|
Hostname
|
Task
|
105
|
Null object
|
Task
|
105
|
Rename a file
|
Task
|
104
|
Binary search
|
Task
|
104
|
Case-sensitivity of identifiers
|
Task
|
104
|
Input loop
|
Task
|
103
|
Arithmetic/Complex
|
Task
|
103
|
Hash from two arrays
|
Task
|
103
|
Random numbers
|
Task
|
103
|
Return multiple values
|
Task
|
102
|
Count in octal
|
Task
|
102
|
Multiplication tables
|
Task
|
102
|
Pick random element
|
Task
|
101
|
Environment variables
|
Task
|
101
|
Generate lower case ASCII alphabet
|
Task
|
101
|
HTTP
|
Task
|
101
|
Mandelbrot set
|
Task
|
101
|
Pangram checker
|
Task
|
101
|
Sorting algorithms/Insertion sort
|
Task
|
100
|
Accumulator factory
|
Task
|
100
|
Count occurrences of a substring
|
Task
|
100
|
Guess the number/With feedback
|
Task
|
100
|
Matrix multiplication
|
Task
|
100
|
Perfect numbers
|
Task
|
99
|
Assertions
|
Task
|
99
|
Create a two-dimensional array at runtime
|
Task
|
99
|
Find limit of recursion
|
Task
|
99
|
Horner's rule for polynomial evaluation
|
Task
|
99
|
Identity matrix
|
Task
|
99
|
Matrix transposition
|
Task
|
99
|
Zero to the zero power
|
Task
|
98
|
Averages/Pythagorean means
|
Task
|
98
|
String matching
|
Task
|
97
|
Haversine formula
|
Task
|
97
|
Roman numerals/Decode
|
Task
|
96
|
Catalan numbers
|
Task
|
96
|
Evaluate binomial coefficients
|
Task
|
96
|
Substring/Top and tail
|
Task
|
95
|
Align columns
|
Task
|
95
|
Exceptions
|
Task
|
95
|
Infinity
|
Task
|
95
|
Run-length encoding
|
Task
|
95
|
Strip a set of characters from a string
|
Task
|
95
|
Temperature conversion
|
Task
|
95
|
Zig-zag matrix
|
Task
|
94
|
Combinations
|
Task
|
94
|
Regular expressions
|
Task
|
94
|
Variadic function
|
Task
|
93
|
Strip whitespace from a string/Top and tail
|
Task
|
92
|
Arithmetic-geometric mean
|
Task
|
92
|
Prime decomposition
|
Task
|
92
|
Program name
|
Task
|
92
|
String interpolation (included)
|
Task
|
91
|
24 game
|
Task
|
91
|
Letter frequency
|
Task
|
91
|
Trigonometric functions
|
Task
|
90
|
Anonymous recursion
|
Task
|
90
|
Comma quibbling
|
Task
|
90
|
Conway's Game of Life
|
Task
|
90
|
Power set
|
Task
|
90
|
Shell one-liner
|
Task
|
90
|
Short-circuit evaluation
|
Task
|
90
|
Sorting algorithms/Selection sort
|
Task
|
89
|
Collections
|
Task
|
89
|
Enumerations
|
Task
|
89
|
Look-and-say sequence
|
Task
|
89
|
Middle three digits
|
Task
|
89
|
Sorting algorithms/Merge sort
|
Task
|
88
|
Babbage problem
|
Task
|
88
|
Ordered words
|
Task
|
88
|
Permutations
|
Task
|
88
|
Random number generator (included)
|
Task
|
88
|
Range extraction
|
Task
|
88
|
Reverse words in a string
|
Task
|
88
|
Sierpinski triangle
|
Task
|
88
|
Sum multiples of 3 and 5
|
Task
|
87
|
Inheritance/Single
|
Task
|
87
|
One-dimensional cellular automata
|
Task
|
87
|
Queue/Definition
|
Task
|
87
|
Sequence of non-squares
|
Task
|
86
|
First-class functions
|
Task
|
86
|
Levenshtein distance
|
Task
|
85
|
Averages/Mode
|
Task
|
85
|
Exponentiation operator
|
Task
|
85
|
Interactive programming
|
Task
|
85
|
Walk a directory/Non-recursively
|
Task
|
84
|
Arbitrary-precision integers (included)
|
Task
|
84
|
Evolutionary algorithm
|
Task
|
84
|
MD5
|
Task
|
84
|
Nth root
|
Task
|
84
|
Sort using a custom comparator
|
Task
|
84
|
Sorting algorithms/Gnome sort
|
Task
|
84
|
String prepend
|
Task
|
84
|
Y combinator
|
Task
|
83
|
Cumulative standard deviation
|
Task
|
83
|
Five weekends
|
Task
|
83
|
Range expansion
|
Task
|
82
|
Bulls and cows
|
Task
|
82
|
Call a function
|
Task
|
82
|
Create an HTML table
|
Task
|
82
|
String append
|
Task
|
82
|
Symmetric difference
|
Task
|
82
|
Time a function
|
Task
|
82
|
Vector products
|
Task
|
81
|
Forward difference
|
Task
|
80
|
Averages/Simple moving average
|
Task
|
80
|
Monty Hall problem
|
Task
|
80
|
Sum digits of an integer
|
Task
|
80
|
Window creation
|
Task
|
79
|
Abstract type
|
Task
|
79
|
Greatest subsequential sum
|
Task
|
79
|
Sierpinski carpet
|
Task
|
78
|
Dragon curve
|
Task
|
78
|
Entropy
|
Task
|
78
|
File modification time
|
Task
|
78
|
Langton's ant
|
Task
|
78
|
Price fraction
|
Task
|
78
|
Sorting algorithms/Cocktail sort
|
Task
|
77
|
Digital root
|
Task
|
77
|
Hamming numbers
|
Task
|
77
|
Harshad or Niven series
|
Task
|
77
|
Menu
|
Task
|
77
|
Simple windowed application
|
Task
|
76
|
JSON
|
Task
|
76
|
N'th
|
Task
|
76
|
Sorting algorithms/Bogosort
|
Task
|
75
|
CSV data manipulation
|
Task
|
75
|
Closures/Value capture
|
Task
|
75
|
Execute Brain****
|
Task
|
75
|
Hello world/Line printer
|
Task
|
75
|
Last Friday of each month
|
Task
|
75
|
Literals/Floating point
|
Task
|
75
|
Man or boy test
|
Task
|
75
|
Map range
|
Task
|
75
|
Non-decimal radices/Convert
|
Task
|
75
|
Queue/Usage
|
Task
|
75
|
The Twelve Days of Christmas
|
Task
|
74
|
Floyd's triangle
|
Task
|
74
|
Gray code
|
Task
|
74
|
Introspection
|
Task
|
74
|
Monte Carlo methods
|
Task
|
74
|
Show the epoch
|
Task
|
74
|
Spiral matrix
|
Task
|
74
|
Tree traversal
|
Task
|
74
|
Web scraping
|
Task
|
73
|
CSV to HTML translation
|
Task
|
73
|
Number reversal game
|
Task
|
73
|
Read a specific line from a file
|
Task
|
73
|
SEDOLs
|
Task
|
73
|
Set
|
Task
|
73
|
URL decoding
|
Task
|
73
|
Walk a directory/Recursively
|
Task
|
72
|
Amicable pairs
|
Task
|
72
|
Bitmap
|
Task
|
72
|
Catamorphism
|
Task
|
72
|
Josephus problem
|
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
|
71
|
Abundant, deficient and perfect number classifications
|
Task
|
71
|
Box the compass
|
Task
|
71
|
Count in factors
|
Task
|
71
|
Number names
|
Task
|
71
|
Playing cards
|
Task
|
71
|
Sorting algorithms/Heapsort
|
Task
|
71
|
Sorting algorithms/Shell sort
|
Task
|
71
|
XML/Input
|
Task
|
70
|
Address of a variable
|
Task
|
70
|
Concurrent computing
|
Task
|
70
|
Knapsack problem/0-1
|
Task
|
70
|
List comprehensions
|
Task
|
70
|
Top rank per group
|
Task
|
69
|
Date manipulation
|
Task
|
69
|
Dynamic variable names
|
Task
|
69
|
Find the missing permutation
|
Task
|
69
|
Linear congruential generator
|
Task
|
69
|
Special characters
|
Task
|
69
|
Strip comments from a string
|
Task
|
69
|
URL encoding
|
Task
|
68
|
Kaprekar numbers
|
Task
|
68
|
Long multiplication
|
Task
|
68
|
Non-decimal radices/Output
|
Task
|
68
|
Order two numerical lists
|
Task
|
68
|
Polymorphism
|
Task
|
68
|
Sockets
|
Task
|
68
|
Soundex
|
Task
|
68
|
Take notes on the command line
|
Task
|
67
|
Fibonacci n-step number sequences
|
Task
|
67
|
Find common directory path
|
Task
|
67
|
Find the last Sunday of each month
|
Task
|
67
|
Hello world/Newbie
|
Task
|
67
|
Lucas-Lehmer test
|
Task
|
67
|
Roots of unity
|
Task
|
67
|
Singly-linked list/Element definition
|
Task
|
67
|
Unicode variable names
|
Task
|
67
|
Word wrap
|
Task
|
66
|
Equilibrium index
|
Task
|
66
|
Here document
|
Task
|
66
|
Jensen's Device
|
Task
|
66
|
Longest common subsequence
|
Task
|
66
|
Sorting algorithms/Comb sort
|
Task
|
66
|
Sorting algorithms/Counting sort
|
Task
|
66
|
Stair-climbing puzzle
|
Task
|
65
|
Bitmap/Bresenham's line algorithm
|
Task
|
65
|
Call an object method
|
Task
|
65
|
Compare a list of strings
|
Task
|
65
|
Count the coins
|
Task
|
65
|
Empty directory
|
Task
|
65
|
Flow-control structures
|
Task
|
65
|
Hofstadter Q sequence
|
Task
|
65
|
Keyboard input/Obtain a Y or N response
|
Task
|
65
|
Multifactorial
|
Task
|
65
|
Multiple distinct objects
|
Task
|
65
|
Pythagorean triples
|
Task
|
65
|
Semordnilap
|
Task
|
65
|
Sorting algorithms/Stooge sort
|
Task
|
65
|
Sudoku
|
Task
|
65
|
Terminal control/Clear the screen
|
Task
|
65
|
Text processing/Max licenses in use
|
Task
|
65
|
Vigenère cipher
|
Task
|
65
|
Write float arrays to a text file
|
Task
|
64
|
Averages/Mean angle
|
Task
|
64
|
Exceptions/Catch an exception thrown in a nested call
|
Task
|
64
|
Hello world/Web server
|
Task
|
64
|
Modular inverse
|
Task
|
64
|
Sort disjoint sublist
|
Task
|
64
|
Trabb Pardo–Knuth algorithm
|
Task
|
63
|
Almost prime
|
Task
|
63
|
Anagrams/Deranged anagrams
|
Task
|
63
|
Animation
|
Task
|
63
|
Enforced immutability
|
Task
|
63
|
Gamma function
|
Task
|
63
|
Guess the number/With feedback (player)
|
Task
|
63
|
Numerical integration
|
Task
|
63
|
Parsing/RPN calculator algorithm
|
Task
|
63
|
Pi
|
Task
|
63
|
Read a configuration file
|
Task
|
62
|
Closest-pair problem
|
Task
|
62
|
Convert seconds to compound duration
|
Task
|
62
|
IBAN
|
Task
|
62
|
Largest int from concatenated ints
|
Task
|
62
|
Runtime evaluation
|
Task
|
62
|
Sort stability
|
Task
|
61
|
Arithmetic/Rational
|
Task
|
61
|
Call a foreign-language function
|
Task
|
61
|
Draw a sphere
|
Task
|
61
|
HTTPS
|
Task
|
61
|
Jump anywhere
|
Task
|
61
|
Operator precedence
|
Task
|
61
|
Proper divisors
|
Task
|
61
|
Quaternion type
|
Task
|
61
|
Rock-paper-scissors
|
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
|
Constrained random points on a circle
|
Task
|
60
|
Execute HQ9+
|
Task
|
60
|
Fork
|
Task
|
60
|
Four bit adder
|
Task
|
60
|
Horizontal sundial calculations
|
Task
|
60
|
Magic squares of odd order
|
Task
|
60
|
Named parameters
|
Task
|
60
|
Phrase reversals
|
Task
|
60
|
Probabilistic choice
|
Task
|
60
|
Roots of a quadratic function
|
Task
|
60
|
Special variables
|
Task
|
59
|
Benford's law
|
Task
|
59
|
CRC-32
|
Task
|
59
|
Currying
|
Task
|
59
|
Euler method
|
Task
|
59
|
Extend your language
|
Task
|
59
|
One of n lines in a file
|
Task
|
59
|
Remove lines from a file
|
Task
|
59
|
Singly-linked list/Element insertion
|
Task
|
59
|
Variable size/Get
|
Task
|
58
|
Amb
|
Task
|
58
|
Calendar
|
Task
|
58
|
Combinations with repetitions
|
Task
|
58
|
Fractal tree
|
Task
|
58
|
Hofstadter-Conway $10,000 sequence
|
Task
|
58
|
Host introspection
|
Task
|
58
|
Inheritance/Multiple
|
Task
|
58
|
Maze generation
|
Task
|
58
|
Memory allocation
|
Task
|
58
|
Optional parameters
|
Task
|
58
|
Priority queue
|
Task
|
58
|
Roots of a function
|
Task
|
58
|
SHA-1
|
Task
|
58
|
Undefined values
|
Task
|
58
|
Van der Corput sequence
|
Task
|
57
|
Runge-Kutta method
|
Task
|
57
|
Sorting algorithms/Pancake sort
|
Task
|
56
|
AKS test for primes
|
Task
|
56
|
Animate a pendulum
|
Task
|
56
|
Cholesky decomposition
|
Task
|
56
|
Fast Fourier transform
|
Task
|
56
|
Narcissistic decimal number
|
Task
|
56
|
Non-decimal radices/Input
|
Task
|
56
|
SHA-256
|
Task
|
56
|
Split a character string based on change of character
|
Task
|
56
|
XML/Output
|
Task
|
55
|
24 game/Solve
|
Task
|
55
|
Best shuffle
|
Task
|
55
|
Documentation
|
Task
|
55
|
Factors of a Mersenne number
|
Task
|
55
|
Globally replace text in several files
|
Task
|
55
|
Knapsack problem/Unbounded
|
Task
|
55
|
Old lady swallowed a fly
|
Task
|
55
|
Partial function application
|
Task
|
55
|
Pernicious numbers
|
Task
|
55
|
Repeat
|
Draft
|
55
|
Sorting algorithms/Sleep sort
|
Task
|
55
|
Write entire file
|
Task
|
55
|
Write language name in 3D ASCII
|
Task
|
55
|
Yin and yang
|
Task
|
54
|
Huffman coding
|
Task
|
54
|
Odd word problem
|
Task
|
54
|
Reduced row echelon form
|
Task
|
54
|
Stem-and-leaf plot
|
Task
|
54
|
Test a function
|
Task
|
53
|
Binary strings
|
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
|
Miller–Rabin primality test
|
Task
|
53
|
Morse code
|
Task
|
53
|
Rosetta Code/Rank languages by popularity
|
Task
|
53
|
Semiprime
|
Task
|
53
|
Sorting algorithms/Bead sort
|
Task
|
53
|
XML/XPath
|
Task
|
52
|
Add a variable to a class instance at runtime
|
Task
|
52
|
Arithmetic evaluation
|
Task
|
52
|
Averages/Mean time of day
|
Task
|
52
|
Bitmap/Write a PPM file
|
Task
|
52
|
Chinese remainder theorem
|
Task
|
52
|
Circles of given radius through two points
|
Task
|
52
|
Dinesman's multiple-dwelling problem
|
Task
|
52
|
Fibonacci word
|
Task
|
52
|
Hash join
|
Task
|
52
|
Rep-string
|
Task
|
52
|
Runtime evaluation/In an environment
|
Task
|
52
|
Send email
|
Task
|
52
|
Sequence of primes by trial division
|
Task
|
52
|
Singleton
|
Task
|
52
|
Sorting algorithms/Permutation sort
|
Task
|
52
|
Stack traces
|
Task
|
52
|
Synchronous concurrency
|
Task
|
51
|
Brownian tree
|
Task
|
51
|
Compile-time calculation
|
Task
|
51
|
Continued fraction
|
Task
|
51
|
DNS query
|
Task
|
51
|
Deal cards for FreeCell
|
Task
|
51
|
Plot coordinate pairs
|
Task
|
51
|
Random number generator (device)
|
Task
|
51
|
Scope modifiers
|
Task
|
51
|
Tic-tac-toe
|
Task
|
51
|
Truncate a file
|
Task
|
51
|
Unix/ls
|
Task
|
50
|
Draw a clock
|
Task
|
50
|
Dutch national flag problem
|
Task
|
50
|
General FizzBuzz
|
Task
|
50
|
Generator/Exponential
|
Task
|
50
|
I before E except after C
|
Task
|
50
|
Pointers and references
|
Task
|
49
|
Define a primitive data type
|
Task
|
49
|
Delegates
|
Task
|
49
|
Handle a signal
|
Task
|
49
|
Knight's tour
|
Task
|
49
|
Modular exponentiation
|
Task
|
49
|
Mouse position
|
Task
|
49
|
Multisplit
|
Task
|
49
|
Munchausen numbers
|
Task
|
49
|
Munching squares
|
Task
|
49
|
Nested function
|
Task
|
49
|
Non-continuous subsequences
|
Task
|
49
|
Terminal control/Display an extended character
|
Task
|
49
|
Topological sort
|
Task
|
49
|
Truncatable primes
|
Task
|
49
|
Unbias a random generator
|
Task
|
49
|
User input/Graphical
|
Task
|
48
|
Doubly-linked list/Element definition
|
Task
|
48
|
Draw a cuboid
|
Task
|
48
|
Grayscale image
|
Task
|
48
|
Integer overflow
|
Task
|
48
|
Maximum triangle path sum
|
Task
|
48
|
Modulinos
|
Draft
|
48
|
Sierpinski triangle/Graphical
|
Task
|
48
|
Statistics/Basic
|
Task
|
48
|
Two Sum
|
Draft
|
48
|
Unicode strings
|
Task
|
48
|
Wireworld
|
Task
|
47
|
Inverted syntax
|
Task
|
47
|
JortSort
|
Task
|
47
|
Left factorials
|
Task
|
47
|
Mad Libs
|
Task
|
47
|
Population count
|
Task
|
47
|
Respond to an unknown method call
|
Task
|
47
|
Table creation/Postal addresses
|
Task
|
47
|
Ternary logic
|
Task
|
47
|
Text processing/2
|
Task
|
47
|
Thue-Morse
|
Task
|
47
|
XML/DOM serialization
|
Task
|
46
|
Color of a screen pixel
|
Task
|
46
|
Emirp primes
|
Task
|
46
|
First-class functions/Use numbers analogously
|
Task
|
46
|
Iterated digits squaring
|
Task
|
46
|
Matrix-exponentiation operator
|
Task
|
46
|
Seven-sided dice from five-sided dice
|
Task
|
46
|
Stable marriage problem
|
Task
|
46
|
Text processing/1
|
Task
|
45
|
15 Puzzle Game
|
Task
|
45
|
9 billion names of God the integer
|
Task
|
45
|
Convert decimal number to rational
|
Task
|
45
|
Get system command output
|
Task
|
45
|
Heronian triangles
|
Task
|
45
|
Longest increasing subsequence
|
Task
|
45
|
Ludic numbers
|
Task
|
45
|
Terminal control/Cursor positioning
|
Task
|
44
|
Barnsley fern
|
Task
|
44
|
Bernoulli numbers
|
Task
|
44
|
Echo server
|
Task
|
44
|
Polymorphic copy
|
Task
|
44
|
Quickselect algorithm
|
Task
|
44
|
Send an unknown method call
|
Task
|
44
|
Terminal control/Coloured text
|
Task
|
43
|
Calculating the value of e
|
Task
|
43
|
Call a function in a shared library
|
Task
|
43
|
Department Numbers
|
Task
|
43
|
Dining philosophers
|
Task
|
43
|
Discordian date
|
Task
|
43
|
Exponentiation order
|
Task
|
43
|
Greyscale bars/Display
|
Task
|
43
|
Move-to-front algorithm
|
Task
|
43
|
Zebra puzzle
|
Task
|
42
|
Bitmap/Read a PPM file
|
Task
|
42
|
Doubly-linked list/Element insertion
|
Task
|
42
|
Doubly-linked list/Traversal
|
Task
|
42
|
FASTA format
|
Task
|
42
|
GUI component interaction
|
Task
|
42
|
Hofstadter Figure-Figure sequences
|
Task
|
42
|
Keyboard input/Keypress check
|
Task
|
42
|
Make directory path
|
Task
|
42
|
Rosetta Code/Count examples
|
Task
|
42
|
Search a list of records
|
Task
|
42
|
Smith numbers
|
Task
|
42
|
Sort three variables
|
Task
|
42
|
Strip block comments
|
Task
|
42
|
Subleq
|
Task
|
41
|
Determine if only one instance is running
|
Task
|
41
|
Execute a Markov algorithm
|
Task
|
41
|
Extract file extension
|
Draft
|
41
|
Holidays related to Easter
|
Task
|
41
|
Leonardo numbers
|
Task
|
41
|
Longest string challenge
|
Task
|
41
|
OpenGL
|
Task
|
41
|
Perfect shuffle
|
Task
|
41
|
Polynomial long division
|
Task
|
41
|
Polynomial regression
|
Task
|
41
|
Rate counter
|
Task
|
41
|
Universal Turing machine
|
Task
|
41
|
Verify distribution uniformity/Naive
|
Task
|
40
|
Angle difference between two bearings
|
Task
|
40
|
Atomic updates
|
Task
|
40
|
Fractran
|
Task
|
40
|
Last letter-first letter
|
Task
|
40
|
Parsing/Shunting-yard algorithm
|
Task
|
40
|
Problem of Apollonius
|
Task
|
40
|
Stern-Brocot sequence
|
Task
|
40
|
Subtractive generator
|
Task
|
39
|
4-rings or 4-squares puzzle
|
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
|
Farey sequence
|
Task
|
39
|
History variables
|
Task
|
39
|
Metaprogramming
|
Task
|
39
|
Narcissist
|
Task
|
39
|
Pascal matrix generation
|
Task
|
39
|
Pig the dice game
|
Task
|
39
|
Secure temporary file
|
Task
|
39
|
Twelve statements
|
Task
|
38
|
Calendar - for "REAL" programmers
|
Task
|
38
|
Cartesian product of two or more lists
|
Task
|
38
|
Doubly-linked list/Definition
|
Task
|
38
|
Extensible prime generator
|
Task
|
38
|
Image noise
|
Task
|
38
|
Naming conventions
|
Task
|
38
|
Set consolidation
|
Task
|
38
|
Sorting algorithms/Strand sort
|
Task
|
38
|
Sparkline in unicode
|
Task
|
38
|
Validate International Securities Identification Number
|
Task
|
38
|
Variable size/Set
|
Task
|
37
|
2048
|
Task
|
37
|
Active object
|
Task
|
37
|
Append a record to the end of a text file
|
Task
|
37
|
Archimedean spiral
|
Task
|
37
|
Colour bars/Display
|
Task
|
37
|
Determinant and permanent
|
Task
|
37
|
Dijkstra's algorithm
|
Task
|
37
|
GUI enabling/disabling of controls
|
Task
|
37
|
Kronecker product
|
Task
|
37
|
MD5/Implementation
|
Task
|
37
|
Parametric polymorphism
|
Task
|
37
|
Percentage difference between images
|
Task
|
37
|
Permutations by swapping
|
Task
|
37
|
Permutations/Derangements
|
Task
|
37
|
Sattolo cycle
|
Draft
|
37
|
Sum to 100
|
Task
|
37
|
Terminal control/Dimensions
|
Task
|
37
|
Tokenize a string with escaping
|
Task
|
36
|
Average loop length
|
Task
|
36
|
Base64 encode data
|
Draft
|
36
|
Bulls and cows/Player
|
Task
|
36
|
GUI/Maximum window dimensions
|
Task
|
36
|
Gaussian elimination
|
Task
|
36
|
Generate Chess960 starting position
|
Task
|
36
|
Hickerson series of almost integers
|
Task
|
36
|
Inverted index
|
Task
|
36
|
Knapsack problem/Bounded
|
Task
|
36
|
Longest common prefix
|
Draft
|
36
|
Ray-casting algorithm
|
Task
|
36
|
Topswops
|
Task
|
36
|
Variable-length quantity
|
Task
|
36
|
Vector
|
Draft
|
36
|
Visualize a tree
|
Task
|
35
|
Aliquot sequence classifications
|
Task
|
35
|
CUSIP
|
Task
|
35
|
Knuth's algorithm S
|
Task
|
35
|
Order disjoint list items
|
Task
|
35
|
Parallel calculations
|
Task
|
35
|
Pascal's triangle/Puzzle
|
Task
|
35
|
Password generator
|
Task
|
35
|
Sorting algorithms/Radix sort
|
Task
|
35
|
Statistics/Normal distribution
|
Task
|
35
|
Vampire number
|
Task
|
34
|
Balanced ternary
|
Task
|
34
|
Break OO privacy
|
Task
|
34
|
Carmichael 3 strong pseudoprimes
|
Task
|
34
|
Combinations and permutations
|
Task
|
34
|
Constrained genericity
|
Task
|
34
|
Deepcopy
|
Task
|
34
|
Find the intersection of two lines
|
Task
|
34
|
Jaro distance
|
Task
|
34
|
Keyboard input/Flush the keyboard buffer
|
Task
|
34
|
Metered concurrency
|
Task
|
34
|
S-Expressions
|
Task
|
34
|
Self-referential sequence
|
Task
|
34
|
Speech synthesis
|
Task
|
34
|
Taxicab numbers
|
Task
|
34
|
Ulam spiral (for primes)
|
Task
|
33
|
Chaos game
|
Task
|
33
|
Events
|
Task
|
33
|
MD4
|
Task
|
33
|
Multiline shebang
|
Draft
|
33
|
Parsing/RPN to infix conversion
|
Task
|
33
|
Permutation test
|
Task
|
33
|
Permutations with repetitions
|
Draft
|
33
|
Start from a main routine
|
Task
|
33
|
Test integerness
|
Task
|
33
|
Voronoi diagram
|
Task
|
32
|
Colour pinstripe/Display
|
Task
|
32
|
Elementary cellular automaton
|
Task
|
32
|
Fibonacci word/fractal
|
Task
|
32
|
LU decomposition
|
Task
|
32
|
Longest Common Substring
|
Draft
|
32
|
Numerical integration/Gauss-Legendre Quadrature
|
Task
|
32
|
Terminal control/Hiding the cursor
|
Task
|
32
|
Terminal control/Inverse video
|
Task
|
32
|
Terminal control/Unicode output
|
Task
|
31
|
Bitmap/Bézier curves/Cubic
|
Task
|
31
|
Casting out nines
|
Task
|
31
|
Flipping bits game
|
Task
|
31
|
Floyd-Warshall algorithm
|
Task
|
31
|
Function prototype
|
Task
|
31
|
Input/Output for Pairs of Numbers
|
Draft
|
31
|
Object serialization
|
Task
|
31
|
Ordered Partitions
|
Task
|
31
|
Pinstripe/Display
|
Task
|
31
|
Primorial numbers
|
Task
|
31
|
Scope/Function names and labels
|
Task
|
31
|
Sorting Algorithms/Circle Sort
|
Draft
|
31
|
Water collected between towers
|
Task
|
30
|
Bitcoin/address validation
|
Task
|
30
|
Bitmap/Histogram
|
Task
|
30
|
Bitwise IO
|
Task
|
30
|
Egyptian division
|
Task
|
30
|
File extension is in extensions list
|
Draft
|
30
|
Find palindromic numbers in both binary and ternary bases
|
Task
|
30
|
Input/Output for Lines of Text
|
Draft
|
30
|
Lychrel numbers
|
Task
|
30
|
Maze solving
|
Task
|
30
|
Minesweeper game
|
Task
|
30
|
Musical scale
|
Draft
|
30
|
Parametrized SQL statement
|
Task
|
30
|
Pathological floating point problems
|
Task
|
30
|
Penney's game
|
Task
|
30
|
Sailors, coconuts and a monkey problem
|
Task
|
30
|
Truth table
|
Task
|
29
|
Bitmap/Bézier curves/Quadratic
|
Task
|
29
|
Chinese zodiac
|
Task
|
29
|
Conjugate transpose
|
Task
|
29
|
Julia set
|
Task
|
29
|
Magic squares of doubly even order
|
Task
|
29
|
Multiple regression
|
Task
|
29
|
Parse command-line arguments
|
Draft
|
29
|
QR decomposition
|
Task
|
29
|
Read a file character by character/UTF8
|
Draft
|
29
|
Resistor mesh
|
Task
|
29
|
Shoelace formula for polygonal area
|
Task
|
29
|
Simple database
|
Task
|
29
|
Subset sum problem
|
Draft
|
29
|
Sutherland-Hodgman polygon clipping
|
Task
|
29
|
Topic variable
|
Task
|
29
|
Word count
|
Draft
|
28
|
Continued fraction/Arithmetic/Construct from rational number
|
Task
|
28
|
Damm algorithm
|
Draft
|
28
|
Executable library
|
Task
|
28
|
Keyboard macros
|
Task
|
28
|
Multiplicative order
|
Task
|
28
|
RIPEMD-160
|
Task
|
28
|
Ranking methods
|
Task
|
28
|
Rosetta Code/Find unimplemented tasks
|
Task
|
28
|
Text between
|
Draft
|
28
|
Use another language to call a function
|
Task
|
28
|
Zhang-Suen thinning algorithm
|
Task
|
27
|
Check output device is a terminal
|
Draft
|
27
|
Currency
|
Task
|
27
|
Formal power series
|
Task
|
27
|
Jewels and Stones
|
Task
|
27
|
Memory layout of a data structure
|
Task
|
27
|
Metronome
|
Task
|
27
|
Numeric error propagation
|
Task
|
27
|
Prime conspiracy
|
Draft
|
27
|
RSA code
|
Task
|
27
|
Solve a Hidato puzzle
|
Task
|
27
|
Solve the no connection puzzle
|
Task
|
27
|
Terminal control/Preserve screen
|
Task
|
26
|
Cantor set
|
Draft
|
26
|
Cramer's rule
|
Task
|
26
|
Create a file on magnetic tape
|
Task
|
26
|
Deconvolution/1D
|
Task
|
26
|
Distributed programming
|
Task
|
26
|
Entropy/Narcissist
|
Task
|
26
|
Execute SNUSP
|
Task
|
26
|
First class environments
|
Task
|
26
|
Galton box animation
|
Task
|
26
|
Loops/Increment loop index within loop body
|
Task
|
26
|
Pattern matching
|
Task
|
26
|
Pythagorean quadruples
|
Task
|
26
|
Rosetta Code/Fix code tags
|
Task
|
26
|
Set puzzle
|
Task
|
26
|
Sort a list of object identifiers
|
Task
|
26
|
Sorting algorithms/Cycle sort
|
Draft
|
26
|
State name puzzle
|
Task
|
26
|
Straddling checkerboard
|
Task
|
26
|
Stream Merge
|
Task
|
26
|
UTF-8 encode and decode
|
Task
|
26
|
Xiaolin Wu's line algorithm
|
Task
|
25
|
Active Directory/Connect
|
Task
|
25
|
Arena storage pool
|
Task
|
25
|
Arithmetic-geometric mean/Calculate Pi
|
Task
|
25
|
Brace expansion
|
Task
|
25
|
Check Machin-like formulas
|
Task
|
25
|
Checkpoint synchronization
|
Task
|
25
|
Decimal floating point number to binary
|
Draft
|
25
|
Find largest left truncatable prime in a given base
|
Task
|
25
|
Implicit type conversion
|
Draft
|
25
|
Integer roots
|
Draft
|
25
|
Nautical bell
|
Task
|
25
|
Paraffins
|
Task
|
25
|
Pentagram
|
Task
|
25
|
Pragmatic directives
|
Task
|
25
|
Pythagoras tree
|
Task
|
25
|
Same Fringe
|
Task
|
25
|
Substitution Cipher
|
Draft
|
25
|
Table creation
|
Draft
|
25
|
Terminal control/Cursor movement
|
Task
|
25
|
Textonyms
|
Task
|
25
|
URL parser
|
Task
|
25
|
Update a configuration file
|
Task
|
25
|
Write to Windows event log
|
Task
|
24
|
Check input device is a terminal
|
Draft
|
24
|
Create an object at a given address
|
Task
|
24
|
Death Star
|
Task
|
24
|
FTP
|
Task
|
24
|
Find first and last set bit of a long integer
|
Draft
|
24
|
HTTPS/Authenticated
|
Task
|
24
|
Natural sorting
|
Task
|
24
|
Partition an integer X into N primes
|
Task
|
24
|
Rosetta Code/Find bare lang tags
|
Task
|
24
|
Sorting algorithms/Patience sort
|
Draft
|
23
|
Egyptian fractions
|
Task
|
23
|
Find the intersection of a line with a plane
|
Draft
|
23
|
Go Fish
|
Task
|
23
|
Old Russian measure of length
|
Draft
|
23
|
Poker hand analyser
|
Task
|
23
|
Reflection/List methods
|
Task
|
23
|
Safe addition
|
Task
|
23
|
Set of real numbers
|
Task
|
23
|
Sum and Product Puzzle
|
Task
|
23
|
Superellipse
|
Task
|
23
|
The ISAAC Cipher
|
Task
|
23
|
Verify distribution uniformity/Chi-squared test
|
Task
|
23
|
Window creation/X11
|
Task
|
22
|
Chat server
|
Task
|
22
|
Cycle detection
|
Draft
|
22
|
Display a linear combination
|
Draft
|
22
|
Function frequency
|
Task
|
22
|
Kahan summation
|
Draft
|
22
|
MAC Vendor Lookup
|
Task
|
22
|
Multi-dimensional array
|
Draft
|
22
|
Negative base numbers
|
Task
|
22
|
Percolation/Mean run density
|
Task
|
22
|
Permutations/Rank of a permutation
|
Task
|
22
|
Polyspiral
|
Task
|
22
|
Ramsey's theorem
|
Draft
|
22
|
Reflection/List properties
|
Task
|
22
|
Simulate input/Keyboard
|
Task
|
22
|
Solve a Holy Knight's tour
|
Task
|
22
|
Type detection
|
Draft
|
22
|
Welch's t-test
|
Draft
|
21
|
Cut a rectangle
|
Task
|
21
|
Honeycombs
|
Task
|
21
|
Hough transform
|
Task
|
21
|
Idiomatically determine all the lowercase and uppercase letters
|
Task
|
21
|
Image convolution
|
Task
|
21
|
Kernighans large earthquake problem
|
Task
|
21
|
Modular arithmetic
|
Draft
|
21
|
Play recorded sounds
|
Task
|
21
|
Square but not cube
|
Task
|
20
|
Bacon cipher
|
Draft
|
20
|
Birthday problem
|
Draft
|
20
|
Decision tables
|
Draft
|
20
|
Dice game probabilities
|
Draft
|
20
|
Draw a pixel
|
Task
|
20
|
Euler's identity
|
Task
|
20
|
Faulhaber's formula
|
Draft
|
20
|
Fivenum
|
Draft
|
20
|
Kronecker product based fractals
|
Task
|
20
|
Main step of GOST 28147-89
|
Task
|
20
|
Make a backup file
|
Draft
|
20
|
Plasma effect
|
Task
|
20
|
Playfair cipher
|
Draft
|
20
|
RCRPG
|
Task
|
20
|
Sequence of primorial primes
|
Task
|
20
|
The Name Game
|
Task
|
20
|
Yahoo! search interface
|
Task
|
19
|
AVL tree
|
Task
|
19
|
Abbreviations, automatic
|
Task
|
19
|
Card shuffles
|
Draft
|
19
|
Elliptic curve arithmetic
|
Draft
|
19
|
K-means++ clustering
|
Task
|
19
|
Parallel Brute Force
|
Task
|
19
|
Parse an IP Address
|
Task
|
19
|
Pig the dice game/Player
|
Task
|
19
|
Record sound
|
Task
|
19
|
SOAP
|
Task
|
19
|
Spinning rod animation/Text
|
Task
|
19
|
Thiele's interpolation formula
|
Task
|
19
|
Tonelli-Shanks algorithm
|
Draft
|
19
|
Total circles area
|
Task
|
19
|
World Cup group stage
|
Task
|
18
|
Active Directory/Search for a user
|
Task
|
18
|
Cipolla's algorithm
|
Draft
|
18
|
Faulhaber's triangle
|
Draft
|
18
|
Idiomatically determine all the characters that can be used for symbols
|
Task
|
18
|
Machine code
|
Task
|
18
|
Median filter
|
Task
|
18
|
Perlin noise
|
Draft
|
18
|
Reverse the gender of a string
|
Draft
|
18
|
Simulate input/Mouse
|
Task
|
18
|
Solve a Numbrix puzzle
|
Task
|
18
|
Superpermutation minimisation
|
Task
|
18
|
Video display modes
|
Task
|
18
|
Window management
|
Task
|
18
|
Word break problem
|
Draft
|
17
|
Apply a digital filter (direct form II transposed)
|
Task
|
17
|
AudioAlarm
|
Draft
|
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
|
Feigenbaum constant calculation
|
Draft
|
17
|
Linux CPU utilization
|
Draft
|
17
|
Lucky and even lucky numbers
|
Task
|
17
|
Magic 8-Ball
|
Draft
|
17
|
Magic squares of singly even order
|
Task
|
17
|
Nonoblock
|
Task
|
17
|
Recaman's sequence
|
Task
|
17
|
Show Ascii table
|
Draft
|
17
|
Sokoban
|
Task
|
17
|
Sort numbers lexicographically
|
Draft
|
16
|
Color quantization
|
Task
|
16
|
Largest number divisible by its digits
|
Task
|
16
|
Levenshtein distance/Alignment
|
Draft
|
16
|
Ramer-Douglas-Peucker line simplification
|
Task
|
16
|
Reflection/Get source
|
Task
|
16
|
SQL-based authentication
|
Task
|
16
|
Selective File Copy
|
Draft
|
16
|
Shortest common supersequence
|
Task
|
16
|
Solve a Hopido puzzle
|
Task
|
15
|
Assertions in design by contract
|
Draft
|
15
|
Bitcoin/public point to address
|
Task
|
15
|
Commatizing numbers
|
Task
|
15
|
Compiler/lexical analyzer
|
Task
|
15
|
Deming's Funnel
|
Draft
|
15
|
Elementary cellular automaton/Infinite length
|
Draft
|
15
|
Four is magic
|
Task
|
15
|
HTTPS/Client-authenticated
|
Task
|
15
|
I.Q. Puzzle
|
Draft
|
15
|
Index finite lists of positive integers
|
Task
|
15
|
Joystick position
|
Task
|
15
|
Long primes
|
Task
|
15
|
McNuggets Problem
|
Task
|
15
|
Mersenne primes
|
Draft
|
15
|
Names to numbers
|
Draft
|
15
|
Readline interface
|
Draft
|
15
|
Sierpinski pentagon
|
Task
|
15
|
Square-free integers
|
Task
|
15
|
Vigenère cipher/Cryptanalysis
|
Task
|
15
|
Vogel's approximation method
|
Task
|
14
|
A* search algorithm
|
Draft
|
14
|
Base58Check encoding
|
Draft
|
14
|
Bilinear interpolation
|
Draft
|
14
|
Convex hull
|
Draft
|
14
|
Determine if two triangles overlap
|
Draft
|
14
|
Diversity prediction theorem
|
Draft
|
14
|
Generate random chess position
|
Task
|
14
|
K-d tree
|
Task
|
14
|
List rooted trees
|
Draft
|
14
|
Markov chain text generator
|
Draft
|
14
|
NYSIIS
|
Draft
|
14
|
Native shebang
|
Draft
|
14
|
Orbital elements
|
Draft
|
14
|
Percolation/Bond percolation
|
Task
|
14
|
Percolation/Site percolation
|
Task
|
14
|
Polynomial synthetic division
|
Draft
|
14
|
RPG Attributes Generator
|
Task
|
14
|
Separate the house number from the street name
|
Draft
|
14
|
Sexy primes
|
Draft
|
14
|
Snake And Ladder
|
Draft
|
13
|
Aspect Oriented Programming
|
Draft
|
13
|
Bitmap/Read an image through a pipe
|
Task
|
13
|
Cheryl's Birthday
|
Draft
|
13
|
Eertree
|
Task
|
13
|
Find URI in text
|
Draft
|
13
|
Find duplicate files
|
Draft
|
13
|
Knuth's power tree
|
Task
|
13
|
Loops/Wrong ranges
|
Task
|
13
|
Mind boggling card trick
|
Task
|
13
|
Monads/Maybe monad
|
Draft
|
13
|
Most frequent k chars distance
|
Draft
|
13
|
N-body problem
|
Draft
|
13
|
Perceptron
|
Draft
|
13
|
Percolation/Mean cluster density
|
Task
|
13
|
Rendezvous
|
Task
|
13
|
Transportation problem
|
Draft
|
13
|
Zeckendorf arithmetic
|
Task
|
12
|
Abbreviations, easy
|
Task
|
12
|
Abbreviations, simple
|
Task
|
12
|
Arithmetic coding/As a generalized change of radix
|
Draft
|
12
|
Compare sorting algorithms' performance
|
Task
|
12
|
Copy stdin to stdout
|
Draft
|
12
|
Data Encryption Standard
|
Draft
|
12
|
Free polyominoes enumeration
|
Draft
|
12
|
Law of cosines - triples
|
Task
|
12
|
Monads/List monad
|
Draft
|
12
|
Montgomery reduction
|
Draft
|
12
|
Retrieve and search chat history
|
Task
|
12
|
Spelling of ordinal numbers
|
Task
|
12
|
Terminal control/Positional read
|
Task
|
12
|
Untrusted environment
|
Draft
|
11
|
Bitmap/PPM conversion through a pipe
|
Task
|
11
|
Color wheel
|
Draft
|
11
|
Compiler/code generator
|
Task
|
11
|
Compiler/virtual machine interpreter
|
Task
|
11
|
File size distribution
|
Draft
|
11
|
Finite state machine
|
Draft
|
11
|
Gauss-Jordan matrix inversion
|
Draft
|
11
|
Kolakoski sequence
|
Task
|
11
|
Kosaraju
|
Draft
|
11
|
Loops/with multiple ranges
|
Task
|
11
|
Nonogram solver
|
Task
|
11
|
P-value correction
|
Draft
|
11
|
Particle Swarm Optimization
|
Draft
|
11
|
Primes - allocate descendants to their ancestors
|
Task
|
11
|
Proof
|
Draft
|
11
|
Self-hosting compiler
|
Draft
|
11
|
Snake
|
Draft
|
11
|
Sunflower fractal
|
Draft
|
11
|
Topological sort/Extracted top item
|
Draft
|
11
|
Word search
|
Task
|
11
|
XML Validation
|
Draft
|
10
|
Burrows–Wheeler transform
|
Draft
|
10
|
Church Numerals
|
Task
|
10
|
Code segment unload
|
Draft
|
10
|
Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N)
|
Draft
|
10
|
EKG sequence convergence
|
Task
|
10
|
Matrix chain multiplication
|
Task
|
10
|
Safe primes and unsafe primes
|
Task
|
10
|
Suffix tree
|
Draft
|
10
|
VList
|
Draft
|
9
|
Addition chains
|
Draft
|
9
|
Compiler/AST interpreter
|
Task
|
9
|
Compiler/syntax analyzer
|
Task
|
9
|
Generalised floating point addition
|
Draft
|
9
|
Hilbert curve
|
Draft
|
9
|
Hunt The Wumpus
|
Task
|
9
|
Just in time processing on a character stream
|
Draft
|
9
|
Koch curve
|
Draft
|
9
|
Mastermind
|
Draft
|
9
|
OpenWebNet Password
|
Task
|
9
|
Singly-linked list/Element removal
|
Draft
|
8
|
Banker's algorithm
|
Draft
|
8
|
Canny edge detector
|
Task
|
8
|
Draw pixel 2
|
Draft
|
8
|
Four is the number of letters in the ...
|
Task
|
8
|
Imaginary base numbers
|
Draft
|
8
|
Monads/Writer monad
|
Draft
|
8
|
Nested templated data
|
Task
|
8
|
Vibrating rectangles
|
Draft
|
7
|
21 Game
|
Draft
|
7
|
Chaocipher
|
Draft
|
7
|
Deconvolution/2D+
|
Task
|
7
|
Fixed length records
|
Task
|
7
|
IPC via named pipe
|
Draft
|
7
|
Parse EBNF
|
Draft
|
7
|
Run as a daemon or service
|
Draft
|
7
|
Starting a web browser
|
Draft
|
7
|
Tarjan
|
Draft
|
7
|
Tetris
|
Draft
|
7
|
Time-based One-time Password Algorithm
|
Draft
|
7
|
User defined pipe and redirection operators
|
Draft
|
6
|
15 puzzle solver
|
Task
|
6
|
ASCII art diagram converter
|
Draft
|
6
|
Audio frequency generator
|
Draft
|
6
|
Catmull–Clark subdivision surface
|
Task
|
6
|
Combinations with repetitions/Square Digit Chain
|
Draft
|
6
|
French Republican calendar
|
Draft
|
6
|
Morpion solitaire
|
Draft
|
6
|
One-time pad
|
Draft
|
6
|
OpenGL Pixel Shader
|
Draft
|
6
|
Peano curve
|
Draft
|
6
|
Pentomino tiling
|
Draft
|
6
|
Pinstripe/Printer
|
Task
|
6
|
Railway circuit
|
Draft
|
6
|
Simulated annealing
|
Draft
|
6
|
Sorting algorithms/Tree sort on a linked list
|
Draft
|
5
|
Colour pinstripe/Printer
|
Task
|
5
|
Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)
|
Draft
|
5
|
Functional coverage tree
|
Draft
|
5
|
Greed
|
Draft
|
5
|
Numerical and alphabetical suffixes
|
Draft
|
5
|
Numerical integration/Adaptive Simpson's method
|
Draft
|
5
|
OpenGL/Utah Teapot
|
Draft
|
5
|
Penrose tiling
|
Draft
|
5
|
Robots
|
Draft
|
5
|
Rosetta Code/Run examples
|
Draft
|
5
|
Spoof game
|
Draft
|
5
|
Suffixation of decimal numbers
|
Task
|
5
|
Using a Speech engine to highlight words
|
Draft
|
4
|
Addition-chain exponentiation
|
Draft
|
4
|
Fibonacci heap
|
Draft
|
4
|
Geometric algebra
|
Draft
|
4
|
Multidimensional Newton-Raphson method
|
Draft
|
4
|
Remote agent/Agent interface
|
Draft
|
4
|
Remote agent/Agent logic
|
Draft
|
4
|
Remote agent/Simulation
|
Draft
|
4
|
Sine wave
|
Draft
|
4
|
Terminal control/Restricted width positional input/No wrapping
|
Draft
|
4
|
Terminal control/Restricted width positional input/With wrapping
|
Draft
|
4
|
Text to HTML
|
Draft
|
4
|
Using the Meetup.com API
|
Draft
|
3
|
Boids
|
Draft
|
3
|
Elliptic Curve Digital Signature Algorithm
|
Draft
|
3
|
Hexapawn
|
Draft
|
3
|
OLE Automation
|
Task
|
3
|
Rosetta Code/Rank languages by number of users
|
Draft
|
3
|
Rosetta Code/Tasks without examples
|
Draft
|
3
|
Solve a Rubik's Cube
|
Draft
|
2
|
16 Puzzle Game
|
Draft
|
2
|
Audio Overlap Loop
|
Draft
|
2
|
Chess player
|
Draft
|
2
|
Curve that touches three points
|
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
|
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
|
Unicode polynomial equation
|
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
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Draft
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0
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Ukkonen’s Suffix Tree Construction
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Draft
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0
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Waveform analysis/Doh ray me
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Draft
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0
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Waveform analysis/Top and tail
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Draft
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0
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Weather Routing
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Draft
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