Rosetta Code/Count examples/Full list/Tier 3

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Revision as of 21:36, 17 January 2021 by Thundergnat (talk | contribs) (Update full list output)

Third tier of languages sorted by number of examples completed.

See Rosetta_Code/Rank_languages_by_popularity/Full_list for a full language/task completion table.

Top tier Second tier Third tier Fourth tier
Third ten programming languages by number of task examples completed:
    ㉑ C_sharp       ㉒ Sidef         ㉓ PicoLisp      ㉔ Factor        ㉕ Nim          
    ㉖ Lua           ㉗ Mathematica   ㉘ Ada           ㉙ Common_Lisp   ㉚ Rust         
As of 2021-01-17T21:26:29Z :: Tasks: 1083 :: Draft Tasks:226 :: Total Tasks: 1309 :: Total Examples: 72396
Count Task
480 Hello world/Text
318 99 bottles of beer  
313 100 doors
310 FizzBuzz
284 Factorial
282 Fibonacci sequence
272 Comments
261 A+B
256 Empty program
237 Function definition
226 Loops/Infinite
223 Reverse a string
222 Arrays
222 Loops/While
216 Ackermann function
205 Loops/For
200 Conditional structures  
197 Greatest common divisor
195 Greatest element of a list
194 Arithmetic/Integer
186 Repeat a string
185 Array concatenation
184 Integer comparison
183 Even or odd
182 Averages/Arithmetic mean
181 Increment a numerical string
176 Hello world/Graphical
171 Copy a string
168 Boolean values
167 Loops/Downward for
164 Apply a callback to an array
164 Character codes
164 Sieve of Eratosthenes
163 Loops/N plus one half
163 String concatenation
162 Array length
162 Loops/Do-while
162 Sum and product of an array
161 Hello world/Newline omission
161 Loops/For with a specified step
161 Loops/Foreach
160 String length
158 Binary digits
158 Integer sequence
157 Loops/Break
157 Towers of Hanoi
156 Palindrome detection
155 String case
155 Sum of a series
154 Generic swap
153 Tokenize a string
152 Dot product
152 Empty string
152 Hailstone sequence
152 Leap year
152 Logical operations
152 Rot-13
152 Sum of squares
148 Associative array/Creation
148 Filter
146 Quine
146 Sorting algorithms/Bubble sort
145 Execute a system command
145 Sort an integer array
143 Factors of an integer
142 Guess the number
142 Higher-order functions
140 Caesar cipher
140 Determine if a string is numeric
140 Remove duplicate elements
140 Roman numerals/Encode
140 System time  
139 File input/output
139 User input/Text
138 Sorting algorithms/Quicksort
137 Loop over multiple arrays simultaneously
136 Day of the week
136 Hello world/Standard error
135 Bitwise operations
135 Command-line arguments
134 Luhn test of credit card numbers
134 Primality by trial division
133 Read entire file
132 Create a file
131 Loops/Continue
131 Stack
131 Substring
130 Sleep
129 Generate lower case ASCII alphabet
128 Check that file exists
128 Literals/String  
128 Mutual recursion
127 Date format
127 Flatten a list
127 Happy numbers
126 Least common multiple
126 Pascal's triangle
126 Zero to the zero power
124 ABC problem
123 Balanced brackets
123 Binary search
122 Literals/Integer
122 Program termination
121 Compound data type
121 Ethiopian multiplication
121 Include a file
121 Loops/Nested
120 Detect division by zero
120 Variables    
119 Associative array/Iteration
119 Formatted numeric output
119 Function composition
119 Knuth shuffle
118 Null object
117 Averages/Root mean square
117 N-queens problem
117 Read a file line by line
116 Anagrams
116 File size
116 Hash from two arrays
116 Mandelbrot set
116 Search a list
115 Classes  
115 Sorting algorithms/Insertion sort
114 Count in octal
114 Count occurrences of a substring
114 Delete a file
114 Guess the number/With feedback
114 Multiplication tables
114 Real constants and functions
113 Case-sensitivity of identifiers
113 Matrix multiplication
113 Matrix transposition
113 Roman numerals/Decode
112 Babbage problem
112 Environment variables
112 Identity matrix
112 Input loop
112 String matching
111 Align columns
111 Averages/Median
111 Hostname
111 Random numbers
110 Pick random element
109 Arithmetic/Complex
109 Find limit of recursion
109 HTTP
109 Haversine formula
109 Perfect numbers
109 Rename a file
109 Return multiple values
108 Accumulator factory
108 Letter frequency
107 Conway's Game of Life  
107 Infinity
107 Pangram checker
106 Catalan numbers
105 Assertions
105 Horner's rule for polynomial evaluation
105 Permutations
105 Temperature conversion
104 Arithmetic-geometric mean
104 Averages/Pythagorean means
104 Levenshtein distance
104 Program name
104 Variadic function  
103 Anonymous recursion
103 Evaluate binomial coefficients
103 Run-length encoding
103 Strip a set of characters from a string
103 Substring/Top and tail
102 Exceptions
102 Look-and-say sequence
102 Prime decomposition
102 Regular expressions
101 String append
100 Combinations
100 Queue/Definition
100 String interpolation (included)
100 Strip whitespace from a string/Top and tail
100 Trigonometric functions  
100 Zig-zag matrix  
99 Comma quibbling
99 Nth root  
99 Reverse words in a string
99 Sorting algorithms/Merge sort
98 Shell one-liner
98 Short-circuit evaluation
97 24 game
97 Bulls and cows
97 Sorting algorithms/Selection sort
97 Sum multiples of 3 and 5
96 Interactive programming  
96 Middle three digits
96 Ordered words
96 Sierpinski triangle  
96 Y combinator  
95 Arbitrary-precision integers (included)
95 Call a function
95 Create a two-dimensional array at runtime
94 Collections
94 Enumerations
94 Power set
94 Range extraction  
93 Inheritance/Single    
93 Range expansion
93 Sorting algorithms/Gnome sort
93 String prepend
93 Vector products
92 Create an HTML table
92 Digital root
92 Evolutionary algorithm
92 Execute Brain****
92 Exponentiation operator
92 First-class functions
92 Time a function  
91 Averages/Mode
91 MD5
91 Sequence of non-squares
91 Sorting algorithms/Cocktail sort
91 Sum digits of an integer
90 Sierpinski carpet
90 The Twelve Days of Christmas
90 Walk a directory/Non-recursively
89 Averages/Simple moving average
89 Cumulative standard deviation
89 JSON
89 One-dimensional cellular automata
89 Random number generator (included)
89 Sort using a custom comparator
88 Dragon curve  
88 Forward difference  
88 Langton's ant  
88 Monty Hall problem  
88 N'th
87 Entropy
87 Josephus problem
87 Sorting algorithms/Bogosort
87 String comparison  
87 Symmetric difference
86 Hamming numbers
86 Harshad or Niven series
85 CSV data manipulation
85 Five weekends
85 Gray code
85 Greatest subsequential sum
85 Number names
84 Abstract type  
84 CSV to HTML translation
84 Map range
84 Price fraction
84 Window creation
83 Abundant, deficient and perfect number classifications
83 Compare a list of strings
83 Hello world/Newbie    
83 Menu
83 Sort an array of composite structures
83 Tree traversal
82 Closures/Value capture
82 File modification time
82 Last Friday of each month
82 Simple windowed application
82 Sorting algorithms/Heapsort    
81 Queue/Usage
80 Box the compass  
80 Hofstadter Q sequence  
80 Introspection    
80 Literals/Floating point
80 Monte Carlo methods
80 Non-decimal radices/Convert
80 SEDOLs    
79 Amicable pairs
79 Catamorphism
79 Number reversal game
79 Singly-linked list/Traversal  
79 URL decoding
79 Walk a directory/Recursively
79 Web scraping  
78 Count in factors
78 Count the coins
78 Hello world/Line printer  
78 Roots of unity
78 Set
78 Show the epoch
78 Spiral matrix
78 Terminal control/Clear the screen  
78 XML/Input
77 Address of a variable      
77 Bitmap  
77 CRC-32  
77 Calculating the value of e
77 Concurrent computing
77 Find common directory path    
77 Floyd's triangle
77 Knapsack problem/0-1
77 Long multiplication    
77 Playing cards
77 Read a specific line from a file
77 Sockets  
77 Sorting algorithms/Shell sort    
77 Terminal control/Ringing the terminal bell
76 Call an object method  
76 Date manipulation    
76 Linear congruential generator
76 Multifactorial  
76 Order two numerical lists
76 Top rank per group
75 Almost prime
75 Dynamic variable names    
75 Jensen's Device  
75 Kaprekar numbers  
75 Keyboard input/Obtain a Y or N response      
75 Lucas-Lehmer test  
75 Man or boy test  
75 Pythagorean triples  
75 Sorting algorithms/Counting sort  
75 Strip comments from a string
75 URL encoding
75 Word wrap
74 Averages/Mean angle
74 Find the last Sunday of each month
74 Find the missing permutation
74 Here document
74 List comprehensions
74 Modular inverse  
74 Operator precedence    
74 Proper divisors
73 Fibonacci n-step number sequences
73 Hello world/Web server  
73 Non-decimal radices/Output
73 Sorting algorithms/Comb sort  
73 Soundex    
73 Unicode variable names
72 Anagrams/Deranged anagrams
72 Calendar
72 Exceptions/Catch an exception thrown in a nested call
72 Multiple distinct objects
72 Semordnilap
72 Singly-linked list/Element definition  
72 Split a character string based on change of character
71 AKS test for primes
71 Animation    
71 Empty directory
71 Equilibrium index    
71 Gamma function  
71 Longest common subsequence
71 Pi
71 Repeat  
71 SHA-1
71 SHA-256
71 Special characters          
71 Sudoku  
71 Take notes on the command line
71 Write entire file
70 Bitmap/Bresenham's line algorithm
70 Enforced immutability  
70 Execute HQ9+
70 Parsing/RPN calculator algorithm
70 Phrase reversals  
70 Polymorphism    
70 Read a configuration file      
70 Rock-paper-scissors    
69 Call a foreign-language function    
69 Convert seconds to compound duration
69 Draw a sphere
69 Euler's sum of powers conjecture
69 Flow-control structures      
69 Four bit adder  
69 Guess the number/With feedback (player)
69 IBAN
69 Quaternion type  
69 Sort disjoint sublist
69 Vigenère cipher
69 Write float arrays to a text file    
68 15 puzzle game      
68 Constrained random points on a circle
68 Horizontal sundial calculations      
68 Numerical integration
68 Population count
68 Self-describing numbers  
68 Show ASCII table      
68 Sorting algorithms/Stooge sort
68 Stair-climbing puzzle  
68 Trabb Pardo–Knuth algorithm  
67 Catalan numbers/Pascal's triangle
67 Closest-pair problem      
67 Combinations with repetitions    
67 Currying  
67 Extend your language
67 Fork
67 Fractal tree    
67 Jump anywhere    
67 Largest int from concatenated ints
67 Maze generation  
67 Munchausen numbers
67 Text processing/Max licenses in use
67 Zeckendorf number representation  
66 Arithmetic/Rational
66 Benford's law  
66 Chinese remainder theorem
66 Euler method
66 Magic squares of odd order  
65 Amb  
65 Named parameters  
65 Optional parameters  
65 Priority queue
65 Sort stability
65 Special variables          
65 Unix/ls  
65 Variable size/Get  
64 Continued fraction
64 Documentation  
64 Fast Fourier transform
64 General FizzBuzz
64 Hofstadter-Conway $10,000 sequence  
64 Inheritance/Multiple    
64 Morse code      
64 Nested function
64 One of n lines in a file
64 Runtime evaluation        
64 XML/Output
63 Barnsley fern  
63 Memory allocation    
63 Remove lines from a file    
63 Roots of a function    
63 Singly-linked list/Element insertion  
63 Sorting algorithms/Pancake sort  
63 Strip control codes and extended characters from a string  
62 Anti-primes  
62 Cholesky decomposition    
62 Factors of a Mersenne number  
62 HTTPS    
62 Narcissistic decimal number    
62 Pernicious numbers  
62 Roots of a quadratic function    
62 Undefined values  
62 Write language name in 3D ASCII  
61 Animate a pendulum
61 Exponentiation order  
61 Get system command output
61 Non-decimal radices/Input
61 Probabilistic choice
61 Reduced row echelon form  
61 Rep-string    
61 Sequence of primes by trial division    
61 Sorting algorithms/Sleep sort
61 Thue-Morse    
60 Arithmetic evaluation  
60 Binary strings  
60 Circles of given radius through two points      
60 Department numbers  
60 Globally replace text in several files  
60 Knapsack problem/Continuous    
60 Modular exponentiation  
60 Old lady swallowed a fly
60 Plot coordinate pairs        
60 Runge-Kutta method      
60 Semiprime
60 Van der Corput sequence    
59 24 game/Solve  
59 9 billion names of God the integer
59 Angle difference between two bearings    
59 Averages/Mean time of day    
59 Best shuffle  
59 Draw a clock    
59 Dutch national flag problem    
59 Host introspection    
59 Knapsack problem/Unbounded  
59 Mouse position      
59 Test a function  
59 Unicode strings    
59 User input/Graphical          
59 Word frequency  
58 Brownian tree
58 Emirp primes
58 Hash join    
58 Huffman coding
58 Partial function application    
58 Tic-tac-toe        
58 Truncatable primes
58 Yin and yang        
57 4-rings or 4-squares puzzle    
57 Bitmap/Write a PPM file  
57 Compile-time calculation
57 Deal cards for FreeCell  
57 Delegates  
57 Generator/Exponential  
57 Jewels and stones        
57 Knight's tour    
57 Left factorials  
57 Leonardo numbers
57 Miller–Rabin primality test    
57 Sort three variables    
57 Sorting algorithms/Bead sort      
56 2048    
56 Add a variable to a class instance at runtime      
56 Doubly-linked list/Element definition  
56 Draw a cuboid    
56 Fibonacci word  
56 I before E except after C    
56 Integer overflow    
56 JortSort  
56 Matrix-exponentiation operator  
56 Odd word problem      
56 Random number generator (device)  
56 Rosetta Code/Rank languages by popularity        
56 Scope modifiers      
56 Singleton      
56 Stem-and-leaf plot    
56 Terminal control/Coloured text    
56 Two sum      
55 Base64 encode data  
55 DNS query  
55 Define a primitive data type    
55 Dinesman's multiple-dwelling problem  
55 Discordian date      
55 Extract file extension    
55 Extreme floating point values    
55 Forest fire
55 LZW compression  
55 Mad Libs    
55 Sorting algorithms/Permutation sort    
55 Stack traces    
55 Stern-Brocot sequence      
55 Terminal control/Display an extended character    
54 CUSIP    
54 Cartesian product of two or more lists  
54 Damm algorithm    
54 Grayscale image  
54 Longest common prefix        
54 Multisplit    
54 Munching squares      
54 Runtime evaluation/In an environment        
54 Sierpinski triangle/Graphical        
54 Synchronous concurrency      
54 Topological sort      
54 XML/XPath    
53 100 prisoners    
53 Abundant odd numbers  
53 Draw a pixel        
53 Ludic numbers    
53 Maximum triangle path sum
53 Modulinos      
53 Pointers and references      
53 Send email      
53 Subleq        
53 Terminal control/Cursor positioning        
53 Ternary logic    
53 XML/DOM serialization  
52 Bernoulli numbers
52 First-class functions/Use numbers analogously
52 Handle a signal        
52 Inverted syntax      
52 Keyboard input/Keypress check          
52 Statistics/Basic  
52 Text processing/2    
52 Truncate a file      
52 Unbias a random generator
51 Convert decimal number to rational  
51 Gaussian elimination      
51 Iterated digits squaring  
51 Long year          
51 Longest increasing subsequence      
51 Non-continuous subsequences      
51 Quickselect algorithm    
51 Wireworld  
50 Attractive numbers      
50 Base64 decode data  
50 Call a function in a shared library    
50 Chinese zodiac      
50 Colour bars/Display    
50 Dining philosophers        
50 GUI component interaction        
50 Heronian triangles        
50 Loops/Increment loop index within loop body          
50 Respond to an unknown method call        
50 Strip block comments    
50 Universal Turing machine  
50 Validate International Securities Identification Number      
49 Archimedean spiral    
49 Dijkstra's algorithm  
49 FASTA format
49 Farey sequence    
49 Find the intersection of two lines    
49 Fractran        
49 Seven-sided dice from five-sided dice    
49 Smith numbers  
49 Text processing/1      
48 Determine if a string has all the same characters  
48 Doubly-linked list/Element insertion      
48 Doubly-linked list/Traversal          
48 Greyscale bars/Display          
48 Last letter-first letter    
48 Longest common substring      
48 Make directory path  
48 Move-to-front algorithm  
48 Polymorphic copy      
48 Rate counter          
48 Shoelace formula for polygonal area      
48 Tokenize a string with escaping    
48 Vector        
47 Append a record to the end of a text file  
47 Chaos game      
47 Echo server    
47 Extensible prime generator    
47 Holidays related to Easter  
47 Jaro distance            
47 Metaprogramming    
47 Polynomial regression        
47 Zebra puzzle          
46 Average loop length    
46 Bitmap/Flood fill      
46 Determinant and permanent        
46 Determine if only one instance is running      
46 Egyptian division  
46 History variables  
46 Longest string challenge        
46 Magic 8-ball            
46 Naming conventions      
46 Pascal matrix generation    
46 Sattolo cycle        
46 Search a list of records  
46 Stable marriage problem            
45 Active object    
45 Determine if a string is collapsible      
45 Execute a Markov algorithm      
45 Hofstadter Figure-Figure sequences    
45 Image noise      
45 OpenGL    
45 Password generator        
45 Perfect shuffle  
45 Pig the dice game          
45 Send an unknown method call      
45 Set consolidation    
44 Carmichael 3 strong pseudoprimes    
44 Copy stdin to stdout      
44 Determine if a string has all unique characters  
44 Doubly-linked list/Definition        
44 Element-wise operations  
44 Elementary cellular automaton
44 GUI/Maximum window dimensions        
44 Kronecker product        
44 McNuggets problem      
44 Narcissist      
44 Polynomial long division      
44 Rosetta Code/Count examples    
44 Sort numbers lexicographically  
44 Sparkline in unicode      
44 Verify distribution uniformity/Naive          
43 Atomic updates      
43 Bitmap/Read a PPM file      
43 Bulls and cows/Player    
43 Generate Chess960 starting position      
43 Keyboard input/Flush the keyboard buffer            
43 Knapsack problem/Bounded        
43 Parsing/Shunting-yard algorithm      
43 RPG attributes generator            
43 Sorting algorithms/Radix sort        
43 Ulam spiral (for primes)      
43 Visualize a tree  
42 Aliquot sequence classifications          
42 Associative array/Merging          
42 Cantor set        
42 Digital root/Multiplicative digital root    
42 Hickerson series of almost integers        
42 MD5/Implementation  
42 Percentage difference between images    
42 Subtractive generator      
42 Van Eck sequence      
42 Voronoi diagram          
41 Bitmap/Midpoint circle algorithm      
41 Calendar - for "REAL" programmers        
41 Combinations and permutations          
41 Currency        
41 Deepcopy  
41 Fusc sequence      
41 Gapful numbers            
41 Hilbert curve      
41 Kernighans large earthquake problem          
41 Nim game        
41 Pascal's triangle/Puzzle      
41 Speech synthesis            
41 Spinning rod animation/Text          
41 Start from a main routine          
41 Sum to 100      
41 Table creation/Postal addresses          
41 Terminal control/Dimensions        
41 Text between            
41 Twelve statements          
41 Variable size/Set            
40 Balanced ternary      
40 Color of a screen pixel          
40 GUI enabling/disabling of controls          
40 Permutations/Derangements        
40 Problem of Apollonius          
40 Secure temporary file        
40 Sorting algorithms/Strand sort          
40 Summarize and say sequence        
40 Variable-length quantity        
40 Water collected between towers        
39 Brace expansion        
39 Casting out nines      
39 Colour pinstripe/Display      
39 Cramer's rule  
39 Inverted index        
39 Parametric polymorphism        
39 S-expressions    
39 Sorting Algorithms/Circle Sort            
39 Taxicab numbers        
39 Topswops        
39 UTF-8 encode and decode        
38 Abbreviations, automatic        
38 Break OO privacy      
38 Constrained genericity      
38 Euler's identity  
38 Fivenum        
38 Flipping bits game              
38 ISBN13 check digit        
38 Julia set          
38 Knuth's algorithm S          
38 Musical scale                  
38 Parallel calculations      
38 Permutations by swapping        
38 Prime conspiracy      
38 Primorial numbers        
38 Scope/Function names and labels              
38 The Name Game            
37 Chowla numbers          
37 Create a file on magnetic tape          
37 Feigenbaum constant calculation        
37 Find palindromic numbers in both binary and ternary bases    
37 Kahan summation              
37 LU decomposition          
37 Magic squares of doubly even order          
37 Order disjoint list items        
37 Parsing/RPN to infix conversion      
37 Permutation test      
37 Pythagorean quadruples        
37 QR decomposition            
37 Ray-casting algorithm          
37 Sailors, coconuts and a monkey problem              
37 Sort a list of object identifiers    
37 Statistics/Normal distribution          
37 Vampire number        
36 21 game          
36 Abbreviations, easy            
36 Bell numbers    
36 Cuban primes    
36 Days between dates      
36 Events        
36 Fibonacci word/fractal        
36 File extension is in extensions list          
36 Floyd-Warshall algorithm          
36 Function prototype          
36 Input/Output for lines of text                
36 Input/Output for pairs of numbers              
36 Lychrel numbers          
36 MAC Vendor Lookup  
36 Metered concurrency            
36 Numerical integration/Gauss-Legendre Quadrature          
36 Object serialization        
36 Pathological floating point problems        
36 Permutations with repetitions              
36 Read a file character by character/UTF8      
36 Square but not cube        
36 Terminal control/Hiding the cursor          
36 Terminal control/Inverse video          
35 Abbreviations, simple            
35 Approximate equality      
35 Bitmap/Bézier curves/Cubic          
35 Bitwise IO        
35 Brazilian numbers            
35 Convex hull      
35 Find the intersection of a line with a plane        
35 Largest number divisible by its digits        
35 Loops/Wrong ranges              
35 MD4  
35 Minesweeper game        
35 Multiline shebang          
35 Penney's game            
35 Pinstripe/Display          
35 Solve the no connection puzzle              
35 Substitution cipher        
35 Terminal control/Unicode output          
35 Test integerness        
35 Truth table        
34 Arithmetic-geometric mean/Calculate Pi      
34 Conjugate transpose      
34 Display a linear combination          
34 Egyptian fractions        
34 Entropy/Narcissist        
34 Humble numbers        
34 Idiomatically determine all the lowercase and uppercase letters          
34 Long primes          
34 Maze solving            
34 Metronome          
34 Ordered partitions      
34 Remove vowels from a string              
34 Sutherland-Hodgman polygon clipping        
33 Check output device is a terminal      
33 Continued fraction/Arithmetic/Construct from rational number      
33 Determine if a string is squeezable      
33 Executable library      
33 Integer roots          
33 Loops/With multiple ranges              
33 Parametrized SQL statement            
33 Parse command-line arguments            
33 Pattern matching            
33 Pentagram              
33 RIPEMD-160    
33 Ranking methods            
33 Recaman's sequence              
33 Rosetta Code/Find bare lang tags                  
33 Square-free integers            
33 Subset sum problem          
33 Topic variable              
33 Totient function    
32 Bitcoin/address validation      
32 Bitmap/Bézier curves/Quadratic          
32 Cheryl's birthday        
32 Decimal floating point number to binary              
32 Execute SNUSP        
32 Factorions              
32 Galton box animation              
32 Mutex            
32 Partition an integer x into n primes          
32 Pythagoras tree                
32 Sorting algorithms/Patience sort              
32 Type detection          
32 URL parser          
31 Apply a digital filter (direct form II transposed)      
31 Bitmap/Histogram        
31 Cycle detection              
31 Determine if two triangles overlap            
31 Eban numbers          
31 First class environments          
31 Multi-dimensional array            
31 Multiple regression          
31 Multiplicative order          
31 Negative base numbers          
31 Numeric error propagation        
31 RSA code        
31 Resistor mesh            
31 Rosetta Code/Find unimplemented tasks        
31 Safe primes and unsafe primes            
31 Set puzzle            
31 Straddling checkerboard              
31 Terminal control/Cursor movement            
31 Textonyms            
31 Write to Windows event log                
30 Check Machin-like formulas            
30 Check input device is a terminal            
30 Faulhaber's formula          
30 Faulhaber's triangle          
30 Four is magic        
30 Implicit type conversion              
30 Keyboard macros                
30 Koch curve          
30 Mersenne primes            
30 Poker hand analyser            
30 Reflection/List properties              
30 Simple database              
30 Solve a Hidato puzzle              
30 Use another language to call a function              
30 Xiaolin Wu's line algorithm                
30 Zhang-Suen thinning algorithm              
29 Arena storage pool        
29 Chaocipher        
29 Chat server          
29 Checkpoint synchronization              
29 Death Star            
29 Decision tables            
29 Deconvolution/1D          
29 Dice game probabilities          
29 Draw a rotating cube          
29 FTP          
29 HTTPS/Authenticated        
29 Memory layout of a data structure              
29 Mian-Chowla sequence              
29 Modular arithmetic          
29 Old Russian measure of length              
29 Palindrome dates          
29 Parallel brute force        
29 Perfect totient numbers            
29 Pragmatic directives          
29 Primality by Wilson's theorem                
29 Set of real numbers            
29 Terminal control/Preserve screen          
29 Window creation/X11              
29 Word break problem            
28 AVL tree        
28 Bacon cipher                
28 Bioinformatics/base count              
28 Chemical calculator            
28 Church numerals              
28 Compiler/lexical analyzer            
28 Diversity prediction theorem          
28 Find first and last set bit of a long integer              
28 Formal power series        
28 Honeycombs          
28 Jacobi symbol              
28 Sequence: smallest number greater than previous term with exactly n divisors            
28 Sequence: smallest number with exactly n divisors              
28 Stream merge              
28 Strong and weak primes            
28 Verify distribution uniformity/Chi-squared test              
27 Active Directory/Connect              
27 Burrows–Wheeler transform          
27 Chebyshev coefficients              
27 Find largest left truncatable prime in a given base            
27 Go Fish              
27 Isqrt (integer square root) of X                
27 Lah numbers            
27 Law of cosines - triples          
27 Palindromic gapful numbers            
27 Paraffins                
27 Peano curve            
27 Polyspiral                
27 Ramsey's theorem                
27 Rosetta Code/Fix code tags            
27 Safe addition          
27 Sexy primes            
27 Sorting algorithms/Cycle sort                
27 State name puzzle                
27 Sum and product puzzle          
27 Superellipse              
27 Update a configuration file                  
27 Weird numbers            
27 Yellowstone sequence            
26 Angles (geometric), normalization and conversion        
26 Birthday problem                  
26 Cut a rectangle              
26 Distributed programming        
26 Fairshare between two and more          
26 First power of 2 that has leading decimal digits of 12              
26 Gauss-Jordan matrix inversion            
26 Natural sorting                
26 Nautical bell                  
26 Reflection/List methods            
26 Same fringe          
26 Smarandache prime-digital sequence            
26 Super-d numbers          
26 Table creation              
26 Thiele's interpolation formula          
25 A* search algorithm          
25 Card shuffles              
25 Color wheel              
25 Create an object at a given address            
25 Fermat numbers            
25 First perfect square in base n with n unique digits              
25 Fraction reduction            
25 Idiomatically determine all the characters that can be used for symbols                
25 Image convolution            
25 Kronecker product based fractals          
25 Length of an arc between two angles                
25 Machine code            
25 N-smooth numbers            
25 Nonoblock                
25 Numbers with prime digits whose sum is 13                  
25 RCRPG              
25 Sequence of primorial primes                
25 The ISAAC Cipher            
25 World Cup group stage                
24 Abelian sandpile model              
24 Audio alarm                  
24 Cipolla's algorithm            
24 Elliptic curve arithmetic              
24 Generate random chess position            
24 Hough transform              
24 K-means++ clustering            
24 Magic squares of singly even order                
24 Pell's equation              
24 Perlin noise            
24 Plasma effect              
24 Play recorded sounds              
24 Ramer-Douglas-Peucker line simplification            
24 Range consolidation              
24 Sierpinski pentagon            
24 Simulate input/Keyboard              
24 Solve a Holy Knight's tour              
24 Stirling numbers of the second kind                
24 Successive prime differences              
24 Unprimeable numbers            
24 Welch's t-test                  
24 Yahoo! search interface              
24 Zumkeller numbers            
23 Base58Check encoding              
23 Circular primes            
23 Deming's Funnel            
23 Elementary cellular automaton/Random Number Generator              
23 Fixed length records            
23 Function frequency          
23 Main step of GOST 28147-89              
23 Make a backup file                
23 Markov chain text generator          
23 Mind boggling card trick              
23 Minimum positive multiple in base 10 using only 0 and 1                
23 Monads/Maybe monad                
23 Möbius function                
23 Permutations/Rank of a permutation                  
23 Record sound            
23 SOAP                  
23 Stirling numbers of the first kind                
23 Superpermutation minimisation                
23 Teacup rim text              
23 Video display modes                    
22 Commatizing numbers              
22 Create an object/Native demonstration                
22 Find duplicate files          
22 Intersecting number wheels                
22 Linux CPU utilization                  
22 Lucky and even lucky numbers                  
22 Numbers with equal rises and falls                  
22 Parse an IP Address                
22 Percolation/Mean run density              
22 Pierpont primes            
22 Reverse the gender of a string                  
22 Spelling of ordinal numbers            
22 Tonelli-Shanks algorithm            
22 Total circles area                
21 Active Directory/Search for a user                  
21 Alternade words                
21 De Bruijn sequences              
21 Finite state machine                  
21 Hunt the Wumpus              
21 Joystick position                
21 Kolakoski sequence              
21 List rooted trees                
21 Magnanimous numbers              
21 Matrix chain multiplication            
21 Next highest int from digits              
21 Orbital elements                
21 Pig the dice game/Player              
21 Playfair cipher                  
21 Reflection/Get source                
21 Sorting algorithms/Cocktail sort with shifting bounds                
21 Window management              
20 Addition chains                
20 Data Encryption Standard                
20 Eertree                
20 Longest common suffix                  
20 Mastermind              
20 Median filter              
20 Native shebang                  
20 Numeric separator syntax                
20 Random Latin squares                
20 Shortest common supersequence                
20 Snake and Ladder              
20 Sokoban                
20 Solve a Hopido puzzle                  
20 Solve a Numbrix puzzle                  
20 Tau number                  
20 UPC                
20 Vogel's approximation method                
19 Assertions in design by contract                    
19 Bilinear interpolation                
19 Bioinformatics/Sequence mutation              
19 Code segment unload                    
19 Color quantization            
19 Elementary cellular automaton/Infinite length                
19 Esthetic numbers              
19 Index finite lists of positive integers                  
19 Kosaraju              
19 Monads/List monad                  
19 Montgomery reduction            
19 N-body problem                  
19 Names to numbers              
19 Perceptron                  
19 Print debugging statement                    
19 Readline interface                
19 Simulate input/Mouse              
19 Sunflower fractal                  
19 Tau function                  
19 Untrusted environment                
19 Vigenère cipher/Cryptanalysis                
19 Words containing "the" substring                  
18 Abelian sandpile model/Identity          
18 Arithmetic coding/As a generalized change of radix                
18 Bitcoin/public point to address            
18 Canonicalize CIDR            
18 Compiler/code generator                  
18 Draw pixel 2                
18 EKG sequence convergence              
18 Extra primes                
18 Find URI in text                  
18 K-d tree                
18 Knuth's power tree                  
18 Levenshtein distance/Alignment              
18 Monads/Writer monad                
18 SQL-based authentication              
18 Selective file copy                  
18 Sierpinski arrowhead curve              
18 Solve triangle solitare puzzle                  
18 Sum data type                
18 Transportation problem                  
18 Twin primes                
17 15 puzzle solver            
17 ABC words                    
17 Compiler/syntax analyzer                  
17 Compiler/virtual machine interpreter                  
17 File size distribution            
17 Imaginary base numbers                
17 Increasing gaps between consecutive Niven numbers                  
17 Just in time processing on a character stream                  
17 Mertens function                
17 Metallic ratios                
17 Odd words                
17 P-value correction                  
17 Percolation/Site percolation                
17 Primes - allocate descendants to their ancestors                  
17 Proof                    
17 Self numbers                    
17 Separate the house number from the street name                  
17 Word wheel                
17 Zeckendorf arithmetic                
16 ASCII art diagram converter              
16 Aspect oriented programming                  
16 Bitmap/Read an image through a pipe            
16 Changeable words                    
16 Chernick's Carmichael numbers                
16 Free polyominoes enumeration                
16 HTTPS/Client-authenticated              
16 Line circle intersection                  
16 Matrix digital rain                
16 Most frequent k chars distance                  
16 NYSIIS                    
16 Nested templated data                  
16 Pancake numbers                    
16 Particle swarm optimization                  
16 Polynomial synthetic division                
16 Prime words                
16 Pseudo-random numbers/PCG32                  
16 Self-hosting compiler                
16 Terminal control/Positional read                  
16 Word search                  
15 Bitmap/PPM conversion through a pipe              
15 Find words which odd letters are consonants and even letters are vowels or vice versa                  
15 Functional coverage tree                
15 Geometric algebra                  
15 Latin Squares in reduced form                  
15 Mayan numerals                
15 Nonogram solver                
15 Numerical integration/Adaptive Simpson's method                
15 Percolation/Bond percolation                    
15 Percolation/Mean cluster density                  
15 Rendezvous                
15 Retrieve and search chat history                  
15 Singly-linked list/Element removal                
15 Snake                  
15 Square root by hand                    
15 Suffix tree                
15 Vibrating rectangles                  
14 Biorhythms                
14 Cistercian numerals                
14 Compare sorting algorithms' performance                  
14 Compiler/AST interpreter                  
14 Cyclotomic polynomial              
14 Find if a point is within a triangle                  
14 Four is the number of letters in the ...                
14 Generalised floating point addition                    
14 Getting the number of decimals                    
14 Gradient descent                    
14 Jaro-Winkler distance                  
14 Logistic curve fitting in epidemiology                    
14 Nimber arithmetic                
14 Peaceful chess queen armies                  
14 Permutations with some identical elements                
14 Product of divisors                  
14 Ramanujan's constant                  
14 Rare numbers                  
14 Sum of divisors                  
14 Tarjan              
14 Topological sort/Extracted top item                    
14 XML validation                
13 Banker's algorithm                  
13 Calkin-Wilf sequence                
13 Deconvolution/2D+                
13 Factorial base numbers indexing permutations of a collection                
13 Long literals, with continuations                  
13 Merge and aggregate datasets                    
13 Pisano period                
13 Pseudo-random numbers/Splitmix64                
13 Pseudo-random numbers/Xorshift star                
13 Sequence: nth number with exactly n divisors                
13 Sine wave                    
13 Ulam numbers                    
12 Canny edge detector                
12 Continued fraction/Arithmetic/G(matrix ng, continued fraction n)                    
12 Greed                
12 Interactive help                
12 Longest palindromic substrings                    
12 OpenWebNet password                    
12 Partition function P                
12 Print itself                    
12 Safe mode                  
12 Sierpinski curve              
12 Simulated annealing                
12 XXXX redacted                  
11 Almkvist-Giullera formula for pi                  
11 Audio frequency generator                    
11 Exponentiation with infix operators in (or operating on) the base                  
11 Geohash                
11 Launch rocket with countdown and acceleration in stdout                  
11 Minimal steps down to 1                  
11 Pentomino tiling                  
11 Run as a daemon or service                
11 Sierpinski square curve              
11 Sorting algorithms/Tree sort on a linked list                    
11 Tetris                  
11 Text completion                  
11 VList                    
10 Catmull–Clark subdivision surface                
10 Checksumcolor                
10 Colour pinstripe/Printer                
10 Combinations with repetitions/Square digit chain                    
10 Execute CopyPasta Language                    
10 External sort                    
10 Faces from a mesh                  
10 Minkowski question-mark function                  
10 One-time pad                    
10 Penrose tiling                  
10 Powerful numbers                  
10 Railway circuit                    
10 Resistance calculator                  
10 SHA-256 Merkle tree                
10 Spoof game                    
10 Time-based one-time password algorithm                
10 Unit testing                    
10 Using a speech engine to highlight words                  
9 Curve that touches three points                    
9 Display an outline as a nested table                  
9 Fibonacci matrix-exponentiation                
9 French Republican calendar                  
9 Hourglass puzzle                    
9 IPC via named pipe                  
9 Morpion solitaire                    
9 Non-transitive dice                  
9 Parse EBNF                  
9 Pinstripe/Printer                  
9 Quoting constructs                    
9 Rosetta Code/Tasks without examples                    
9 Starting a web browser                    
9 Suffixation of decimal numbers                    
9 Text to HTML                    
9 Three word location                    
9 War card game                  
8 Graph colouring                  
8 Multidimensional Newton-Raphson method                  
8 Numerical and alphabetical suffixes                  
8 Pseudo-random numbers/Combined recursive generator MRG32k3a                  
8 Range modifications                    
8 Resistance network calculator                    
8 Rosetta Code/Rank languages by number of users                    
8 Sort an outline at every level                    
8 Tree datastructures                    
8 Two bullet roulette                  
8 User defined pipe and redirection operators                    
7 16 puzzle game                    
7 Brace expansion using ranges                    
7 Compiler/Verifying syntax                    
7 Count the coins/0-1                    
7 Elliptic Curve Digital Signature Algorithm                    
7 Fibonacci heap                    
7 Mayan calendar                    
7 Pseudorandom number generator image                  
7 Robots                    
7 URL shortener                  
6 Continued fraction/Arithmetic/G(matrix ng, continued fraction n1, continued fraction n2)                    
6 Doubly-linked list/Element removal                    
6 OpenGL pixel shader                    
6 OpenGL/Utah Teapot                    
6 Recursive descent parser generator                    
6 Rosetta Code/Run examples                    
6 Smallest enclosing circle problem                    
5 Addition-chain exponentiation                    
5 Audio overlap loop                    
5 Black Box                    
5 Boids                    
5 Chess player                  
5 Hexapawn                    
5 I'm a software engineer, get me out of here                    
5 Price list behind API                    
5 Process SMIL directives in XML data                    
5 Raster bars                  
5 Remote agent/Agent interface                  
5 Remote agent/Agent logic                  
5 Remote agent/Simulation                  
5 Solve a Rubik's Cube                    
5 Terminal control/Restricted width positional input/No wrapping                  
5 Terminal control/Restricted width positional input/With wrapping                  
5 Waveform analysis/Doh ray me                    
4 Generalised floating point multiplication                    
4 OLE automation                    
4 Strassen's algorithm                    
4 Tamagotchi emulator                    
4 Unicode polynomial equation                    
4 Using the Meetup.com API                    
4 Weather routing                    
3 Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique                    
3 Rosetta Code/List authors of task descriptions                    
3 Solving coin problems                    
3 Ukkonen’s suffix tree construction                    
3 Vidir                    
3 Waveform analysis/Top and tail                    
3 WiktionaryDumps to words                    
2 15 puzzle game in 3D                    
2 CLI-based maze-game                    
2 IRC gateway                    
1 Blackjack strategy