Rosetta Code/Count examples/Full list/Tier 4

Revision as of 21:13, 2 May 2021 by Thundergnat (talk | contribs) (Update full list output)

Fourth 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
Fourth ten programming languages by number of task examples completed:
    ㉛ Ring          ㉜ Common_Lisp   ㉝ JavaScript    ㉞ AutoHotkey    ㉟ F_Sharp      
    ㊱ ALGOL_68      ㊲ Delphi        ㊳ Clojure       ㊴ PureBasic     ㊵ Unicon       
As of 2021-05-02T21:09:52Z :: Tasks: 1102 :: Draft Tasks:269 :: Total Tasks: 1371 :: Total Examples: 75676
Count Task
487 Hello world/Text
322 99 bottles of beer
316 FizzBuzz
315 100 doors
288 Fibonacci sequence
287 Factorial
275 Comments
267 A+B
260 Empty program
239 Function definition
229 Loops/Infinite
225 Loops/While
225 Reverse a string
223 Arrays
221 Ackermann function
206 Loops/For
200 Conditional structures  
198 Greatest common divisor
197 Greatest element of a list
196 Arithmetic/Integer
188 Array concatenation
185 Even or odd
185 Integer comparison
185 Repeat a string
184 Averages/Arithmetic mean
181 Increment a numerical string
178 Hello world/Graphical
173 Copy a string
169 Boolean values
169 Sieve of Eratosthenes
168 Loops/Downward for
167 String concatenation
166 Binary digits
165 Apply a callback to an array
165 Character codes
164 Loops/Do-while  
164 Loops/N plus one half
163 Hello world/Newline omission
163 Loops/For with a specified step
163 String length
163 Sum and product of an array
162 Array length
162 Integer sequence
162 Loops/Foreach
162 Towers of Hanoi
161 Palindrome detection
160 Loops/Break  
160 Sum of a series
160 Tokenize a string
159 String case
156 Leap year
155 Generic swap
155 Rot-13
154 Dot product
154 Empty string
154 Hailstone sequence
154 Sum of squares
153 Logical operations
151 Filter
150 Associative array/Creation
149 Quine  
148 Sort an integer array
148 Sorting algorithms/Bubble sort
145 Execute a system command
144 Caesar cipher
144 Factors of an integer
143 Guess the number  
143 Loop over multiple arrays simultaneously
143 Roman numerals/Encode
143 System time
142 Higher-order functions
141 Remove duplicate elements
141 Sorting algorithms/Quicksort  
141 User input/Text
140 Determine if a string is numeric
140 File input/output
137 Bitwise operations
137 Day of the week
137 Primality by trial division
136 Hello world/Standard error
136 Luhn test of credit card numbers  
135 Command-line arguments
135 Read entire file
134 Create a file
134 Stack
134 Substring
133 Loops/Continue
132 Happy numbers
132 Mutual recursion
131 Sleep
131 Zero to the zero power
130 Generate lower case ASCII alphabet
129 Least common multiple
129 Literals/String  
129 Pascal's triangle
128 ABC problem
128 Check that file exists
128 Date format
128 Flatten a list  
125 Program termination
124 Binary search
124 Compound data type
123 Balanced brackets
123 Ethiopian multiplication
123 Function composition
123 Include a file  
123 Literals/Integer
123 Variables
122 Detect division by zero
122 Formatted numeric output
121 Associative array/Iteration
121 Loops/Nested  
121 Mandelbrot set
120 Knuth shuffle
120 N-queens problem
119 Averages/Root mean square
119 Read a file line by line
119 Roman numerals/Decode
118 Count occurrences of a substring
118 Null object
118 Sorting algorithms/Insertion sort
117 Search a list
116 Anagrams
116 Count in octal
116 Hash from two arrays  
116 Multiplication tables
116 Real constants and functions
115 Case-sensitivity of identifiers
115 Delete a file
115 File size
115 Guess the number/With feedback
115 Identity matrix
114 Babbage problem    
114 Classes  
114 Find limit of recursion
114 Matrix transposition
114 Rename a file
113 Align columns  
113 Environment variables
113 Input loop
113 Matrix multiplication  
113 String matching
112 Averages/Median
112 Letter frequency
112 Pick random element
112 Random numbers
111 Hostname  
111 Return multiple values
110 Arithmetic/Complex  
110 HTTP
110 Haversine formula
110 Pangram checker
110 Perfect numbers
109 Conway's Game of Life  
108 Accumulator factory    
108 Assertions  
108 Catalan numbers
108 Infinity    
108 Temperature conversion
106 Horner's rule for polynomial evaluation  
106 Levenshtein distance  
106 Permutations
106 Substring/Top and tail
106 Variadic function    
105 Arithmetic-geometric mean
105 Averages/Pythagorean means
105 Look-and-say sequence
105 Program name
105 Run-length encoding
105 String append
105 Strip a set of characters from a string
104 Anonymous recursion    
104 Evaluate binomial coefficients
104 Prime decomposition
104 Reverse words in a string  
104 Sierpinski triangle
103 Regular expressions
103 Strip whitespace from a string/Top and tail
103 Zig-zag matrix  
102 Comma quibbling  
102 Exceptions    
102 Nth root
102 String interpolation (included)
102 Trigonometric functions  
101 Bulls and cows  
101 Combinations
101 Ordered words
101 Queue/Definition  
101 Sorting algorithms/Merge sort  
99 Middle three digits  
99 Shell one-liner  
99 Short-circuit evaluation
99 Sorting algorithms/Selection sort
98 Call a function    
98 String prepend
98 Sum multiples of 3 and 5
97 24 game    
97 Arbitrary-precision integers (included)    
97 Create a two-dimensional array at runtime
97 Power set  
97 Range extraction
97 Vector products  
96 Interactive programming          
96 Range expansion
96 Sum digits of an integer
96 Y combinator        
95 Harshad or Niven series  
95 Sorting algorithms/Gnome sort
94 Collections  
94 Enumerations
94 Sierpinski carpet
94 The Twelve Days of Christmas  
94 Time a function    
93 Digital root
93 Evolutionary algorithm
93 Execute Brain****  
93 First-class functions    
93 Walk a directory/Non-recursively
92 Averages/Mode  
92 Create an HTML table
92 Exponentiation operator
92 Inheritance/Single      
92 MD5    
92 N'th  
92 One-dimensional cellular automata    
92 Sequence of non-squares  
92 Sorting algorithms/Cocktail sort    
90 Cumulative standard deviation  
90 Dragon curve    
90 Forward difference
90 JSON        
90 Random number generator (included)    
90 Sort using a custom comparator  
89 Averages/Simple moving average
89 Hello world/Newbie        
89 Sorting algorithms/Bogosort  
89 String comparison  
89 Symmetric difference  
88 Entropy
88 Hamming numbers  
88 Josephus problem    
88 Langton's ant  
88 Monty Hall problem
87 Gray code  
87 Greatest subsequential sum
87 Number names
87 Price fraction
86 CSV data manipulation
86 Five weekends
86 Menu
86 Number reversal game    
86 Tree traversal    
85 Abstract type          
85 Abundant, deficient and perfect number classifications    
85 CSV to HTML translation    
85 Compare a list of strings  
85 Map range  
85 Sorting algorithms/Heapsort
84 Amicable pairs      
84 Hofstadter Q sequence  
83 Catamorphism  
83 Last Friday of each month      
83 Non-decimal radices/Convert      
83 Queue/Usage    
83 SEDOLs
83 Simple windowed application    
83 Sort an array of composite structures
83 Walk a directory/Recursively
83 Window creation
82 Closures/Value capture      
82 File modification time
82 Introspection    
82 Set  
82 Terminal control/Clear the screen      
82 URL decoding  
81 Box the compass  
81 Calculating the value of e    
81 Count in factors
81 Monte Carlo methods  
80 Almost prime
80 Hello world/Line printer  
80 Literals/Floating point          
80 Terminal control/Ringing the terminal bell    
79 Count the coins  
79 Find common directory path  
79 Long multiplication  
79 Playing cards  
79 Roots of unity    
79 Singly-linked list/Traversal    
79 Sorting algorithms/Shell sort    
79 Spiral matrix  
79 Split a character string based on change of character    
79 Top rank per group    
79 Web scraping  
78 Address of a variable          
78 Bitmap  
78 Concurrent computing      
78 Date manipulation    
78 Find the last Sunday of each month  
78 Floyd's triangle  
78 Multifactorial      
78 Operator precedence  
78 Order two numerical lists  
78 Read a specific line from a file  
78 Repeat      
78 Show the epoch    
78 Sockets      
78 Word wrap    
78 XML/Input      
77 CRC-32  
77 Jensen's Device      
77 Knapsack problem/0-1        
77 Linear congruential generator    
77 Proper divisors  
77 Pythagorean triples  
77 Sorting algorithms/Counting sort    
77 Strip comments from a string
77 URL encoding    
76 Call an object method          
76 Find the missing permutation    
76 Here document      
76 Keyboard input/Obtain a Y or N response  
76 Munchausen numbers    
75 Dynamic variable names          
75 Kaprekar numbers    
75 Lucas-Lehmer test      
75 Man or boy test      
75 Modular inverse
75 Non-decimal radices/Output  
75 Phrase reversals      
75 Population count  
75 Soundex
74 Anagrams/Deranged anagrams
74 Averages/Mean angle  
74 Calendar    
74 List comprehensions      
74 Parsing/RPN calculator algorithm      
74 Pi  
74 Read a configuration file        
74 SHA-1      
74 Semordnilap  
74 Sorting algorithms/Comb sort      
74 Unicode variable names    
73 Equilibrium index  
73 Fibonacci n-step number sequences
73 Gamma function  
73 Hello world/Web server        
73 Multiple distinct objects  
73 Sudoku    
73 Write entire file    
72 Animation  
72 Empty directory    
72 Exceptions/Catch an exception thrown in a nested call        
72 Execute HQ9+  
72 SHA-256    
72 Singly-linked list/Element definition    
72 Special characters        
71 AKS test for primes      
71 Convert seconds to compound duration    
71 Euler's sum of powers conjecture    
71 Longest common subsequence  
71 Rock-paper-scissors    
71 Show ASCII table    
71 Sort disjoint sublist    
71 Stair-climbing puzzle      
71 Take notes on the command line    
71 Vigenère cipher  
71 Zeckendorf number representation    
70 Bitmap/Bresenham's line algorithm  
70 Call a foreign-language function        
70 Currying        
70 Enforced immutability    
70 IBAN      
70 Largest int from concatenated ints  
70 Polymorphism    
70 Quaternion type      
70 Write float arrays to a text file      
69 15 puzzle game        
69 Catalan numbers/Pascal's triangle    
69 Closest-pair problem  
69 Combinations with repetitions      
69 Constrained random points on a circle
69 Draw a sphere        
69 Flow-control structures        
69 Four bit adder    
69 Guess the number/With feedback (player)  
69 Horizontal sundial calculations      
69 Magic squares of odd order      
69 Maze generation    
69 Numerical integration      
69 Old lady swallowed a fly            
69 Self-describing numbers      
69 Sorting algorithms/Stooge sort    
69 Trabb Pardo–Knuth algorithm      
68 Euler method  
68 Extend your language        
68 Fractal tree    
68 Jump anywhere          
68 Priority queue        
68 Text processing/Max licenses in use      
67 Benford's law  
67 Fast Fourier transform            
67 Fork        
67 Named parameters        
67 Nested function        
67 Pernicious numbers      
67 Sorting algorithms/Pancake sort  
67 Special variables      
67 Unix/ls          
66 Arithmetic/Rational      
66 Chinese remainder theorem        
66 One of n lines in a file  
66 Remove lines from a file  
66 Roots of a function  
66 Runtime evaluation          
66 Sequence of primes by trial division      
66 Sort stability    
66 Strip control codes and extended characters from a string  
66 Variable size/Get      
65 Amb  
65 Barnsley fern      
65 Documentation      
65 General FizzBuzz        
65 HTTPS      
65 Inheritance/Multiple        
65 Morse code        
65 Narcissistic decimal number    
65 Optional parameters    
65 Roots of a quadratic function      
65 Thue-Morse        
64 Anti-primes        
64 Continued fraction        
64 Factors of a Mersenne number    
64 Hofstadter-Conway $10,000 sequence  
64 Reduced row echelon form        
64 Van der Corput sequence      
64 XML/Output      
63 Exponentiation order            
63 Memory allocation      
63 Non-decimal radices/Input    
63 Rep-string  
63 Singly-linked list/Element insertion    
63 Undefined values      
63 Write language name in 3D ASCII      
62 Animate a pendulum    
62 Cholesky decomposition      
62 Circles of given radius through two points        
62 Department numbers      
62 Globally replace text in several files    
62 Mouse position  
62 Plot coordinate pairs    
62 Probabilistic choice    
62 Runge-Kutta method        
62 Semiprime      
62 Tic-tac-toe        
61 Angle difference between two bearings          
61 Averages/Mean time of day        
61 Binary strings      
61 Get system command output          
61 Modular exponentiation      
61 Sort three variables        
61 Sorting algorithms/Sleep sort        
61 Word frequency    
60 Arithmetic evaluation    
60 Best shuffle    
60 Damm algorithm      
60 Draw a clock        
60 Jewels and stones          
60 Knapsack problem/Continuous          
60 Miller–Rabin primality test  
60 Partial function application        
60 Test a function  
60 Truncatable primes      
59 100 prisoners          
59 24 game/Solve        
59 9 billion names of God the integer          
59 Bitmap/Write a PPM file            
59 Cartesian product of two or more lists        
59 Dutch national flag problem        
59 Emirp primes    
59 Generator/Exponential        
59 Host introspection      
59 Huffman coding        
59 Knapsack problem/Unbounded        
59 Stern-Brocot sequence      
59 Unicode strings            
59 User input/Graphical    
59 Yin and yang        
58 Add a variable to a class instance at runtime          
58 Brownian tree      
58 Compile-time calculation          
58 Hash join        
58 Knight's tour        
58 Odd word problem  
58 Two sum      
57 2048    
57 4-rings or 4-squares puzzle        
57 Deal cards for FreeCell      
57 Delegates        
57 Draw a cuboid        
57 I before E except after C      
57 Integer overflow            
57 JortSort    
57 Left factorials        
57 Leonardo numbers        
57 Longest common prefix            
57 Ludic numbers  
57 Mad Libs          
57 Matrix-exponentiation operator            
57 Multisplit      
57 Random number generator (device)          
57 Scope modifiers      
57 Sorting algorithms/Bead sort      
57 Sorting algorithms/Permutation sort        
57 Stem-and-leaf plot      
57 Terminal control/Display an extended character          
57 Topological sort          
57 Truncate a file      
56 DNS query          
56 Dinesman's multiple-dwelling problem  
56 Discordian date        
56 Doubly-linked list/Element definition      
56 Extract file extension          
56 Fibonacci word
56 LZW compression          
56 Rosetta Code/Rank languages by popularity      
56 Singleton          
56 Subleq              
56 Terminal control/Coloured text          
55 Base64 encode data          
55 CUSIP      
55 Define a primitive data type          
55 Extreme floating point values          
55 Forest fire  
55 Grayscale image          
55 Long year          
55 Modulinos          
55 Munching squares              
55 Sierpinski triangle/Graphical            
55 Stack traces        
54 Abundant odd numbers      
54 Draw a pixel        
54 Handle a signal        
54 Pointers and references        
54 Quickselect algorithm  
54 Runtime evaluation/In an environment        
54 Synchronous concurrency      
54 Terminal control/Cursor positioning        
54 Unbias a random generator      
54 XML/XPath          
53 Bernoulli numbers        
53 Convert decimal number to rational        
53 Maximum triangle path sum        
53 Non-continuous subsequences      
53 Send email          
53 Statistics/Basic              
53 Ternary logic        
53 Universal Turing machine          
53 Van Eck sequence            
53 XML/DOM serialization          
52 Base64 decode data              
52 Call a function in a shared library            
52 Determine if a string has all the same characters    
52 Determine if a string is collapsible      
52 First-class functions/Use numbers analogously          
52 Heronian triangles          
52 Inverted syntax            
52 Iterated digits squaring          
52 Keyboard input/Keypress check    
52 Longest common substring        
52 Longest increasing subsequence        
52 Loops/Increment loop index within loop body        
52 Magic 8-ball        
52 Polynomial regression                
52 Seven-sided dice from five-sided dice    
52 Smith numbers      
52 Square but not cube        
52 Strip block comments      
52 Text processing/2        
52 Validate International Securities Identification Number            
52 Vector              
52 Wireworld      
51 Attractive numbers            
51 Chinese zodiac    
51 Dining philosophers        
51 FASTA format        
51 Farey sequence            
51 Gaussian elimination          
51 Move-to-front algorithm    
51 Pascal matrix generation      
51 Pig the dice game          
51 Respond to an unknown method call            
51 Sattolo cycle            
51 Shoelace formula for polygonal area            
50 Archimedean spiral        
50 Colour bars/Display        
50 Copy stdin to stdout          
50 Dijkstra's algorithm  
50 Find the intersection of two lines        
50 GUI component interaction        
50 Holidays related to Easter        
50 ISBN13 check digit            
50 Make directory path        
50 Perfect shuffle      
50 Rate counter        
50 Search a list of records          
50 Tokenize a string with escaping          
49 Associative array/Merging  
49 Fractran        
49 Jaro distance            
49 Kernighans large earthquake problem                
49 Last letter-first letter        
49 Password generator          
49 RPG attributes generator          
49 Text processing/1      
48 Chaos game          
48 Determinant and permanent              
48 Doubly-linked list/Element insertion      
48 Doubly-linked list/Traversal      
48 Extensible prime generator      
48 Greyscale bars/Display          
48 Longest string challenge        
48 Metaprogramming            
48 Naming conventions            
48 Polymorphic copy        
48 Polynomial long division              
48 Sort numbers lexicographically          
48 Visualize a tree      
48 Zebra puzzle            
47 Append a record to the end of a text file                
47 Echo server      
47 Execute a Markov algorithm        
47 History variables          
47 Hofstadter Figure-Figure sequences        
47 Kronecker product            
47 Stable marriage problem          
46 Active object          
46 Average loop length            
46 Bitmap/Flood fill              
46 Determine if only one instance is running        
46 Egyptian division      
46 Narcissist          
46 OpenGL      
46 Set consolidation        
46 Ulam spiral (for primes)              
46 Verify distribution uniformity/Naive      
46 Water collected between towers              
45 Bulls and cows/Player            
45 Determine if a string has all unique characters    
45 Element-wise operations            
45 Image noise        
45 McNuggets problem          
45 Parsing/Shunting-yard algorithm        
45 Rosetta Code/Count examples        
45 Send an unknown method call              
45 Sorting algorithms/Radix sort            
45 Taxicab numbers          
44 Atomic updates        
44 Bitmap/Read a PPM file            
44 Cantor set            
44 Carmichael 3 strong pseudoprimes          
44 Doubly-linked list/Definition  
44 Elementary cellular automaton            
44 GUI/Maximum window dimensions          
44 Generate Chess960 starting position              
44 Nim game            
44 Sparkline in unicode        
44 Spinning rod animation/Text                
44 Subtractive generator          
44 Sum to 100      
44 Truth table              
43 Currency          
43 Gapful numbers            
43 Hickerson series of almost integers              
43 Keyboard input/Flush the keyboard buffer            
43 Knapsack problem/Bounded            
43 MD5/Implementation            
43 Percentage difference between images        
43 Text between            
43 Twelve statements              
43 UTF-8 encode and decode          
43 Voronoi diagram        
42 Aliquot sequence classifications              
42 Calendar - for "REAL" programmers          
42 Deepcopy        
42 Digital root/Multiplicative digital root            
42 Fivenum                
42 Fusc sequence            
42 Hilbert curve            
42 Permutations/Derangements            
42 S-expressions          
42 Secure temporary file            
42 Sorting Algorithms/Circle Sort              
42 Speech synthesis            
42 Summarize and say sequence        
42 Table creation/Postal addresses            
42 Terminal control/Dimensions          
42 The Name Game              
41 Balanced ternary            
41 Bitmap/Midpoint circle algorithm            
41 Combinations and permutations              
41 Determine if a string is squeezable          
41 Flipping bits game            
41 Inverted index        
41 Parallel calculations        
41 Pascal's triangle/Puzzle          
41 Problem of Apollonius            
41 Remove vowels from a string        
41 Sort a list of object identifiers            
41 Sorting algorithms/Strand sort          
41 Start from a main routine          
41 Topswops                  
41 Variable size/Set              
40 Casting out nines              
40 Chowla numbers                  
40 Color of a screen pixel    
40 Euler's identity              
40 GUI enabling/disabling of controls            
40 Musical scale          
40 Primorial numbers          
40 Recaman's sequence              
40 Sailors, coconuts and a monkey problem              
40 Scope/Function names and labels              
40 Variable-length quantity                
39 Abbreviations, automatic              
39 Bell numbers            
39 Brace expansion              
39 Colour pinstripe/Display          
39 Cramer's rule              
39 Create a file on magnetic tape            
39 Julia set            
39 Knuth's algorithm S            
39 Magic squares of doubly even order                
39 Order disjoint list items            
39 Parametric polymorphism              
39 Parsing/RPN to infix conversion        
39 Permutation test                
39 Permutations by swapping          
39 Permutations with repetitions            
39 Prime conspiracy                
39 Ray-casting algorithm            
39 Statistics/Normal distribution                  
39 Two identical strings              
38 Brazilian numbers              
38 Break OO privacy              
38 Constrained genericity                
38 Cuban primes          
38 Days between dates                
38 Feigenbaum constant calculation                
38 Idiomatically determine all the lowercase and uppercase letters          
38 Kahan summation                
38 LU decomposition                
38 MAC Vendor Lookup          
38 Metered concurrency                
38 Pathological floating point problems          
38 Pythagorean quadruples              
38 QR decomposition                  
38 Ranking methods                
38 Read a file character by character/UTF8            
38 Substitution cipher                  
38 Totient function                  
38 Vampire number        
37 21 game            
37 Abbreviations, easy              
37 Display a linear combination              
37 File extension is in extensions list            
37 Find palindromic numbers in both binary and ternary bases            
37 Find the intersection of a line with a plane                  
37 Function prototype      
37 Input/Output for lines of text              
37 Input/Output for pairs of numbers                
37 Long primes                
37 Loops/Wrong ranges                
37 Lychrel numbers              
37 MD4          
37 Metronome          
37 Multiple regression                
37 Object serialization                
37 Penney's game                
37 Solve the no connection puzzle                
37 Sutherland-Hodgman polygon clipping                
37 Terminal control/Hiding the cursor            
37 Terminal control/Inverse video            
37 Test integerness                  
36 Abbreviations, simple              
36 Approximate equality                  
36 Bitwise IO          
36 Convex hull                
36 Cycle detection                    
36 Egyptian fractions                
36 Events        
36 Fibonacci word/fractal          
36 Floyd-Warshall algorithm                
36 Humble numbers            
36 Isqrt (integer square root) of X              
36 Largest number divisible by its digits              
36 Loops/With multiple ranges          
36 Maze solving        
36 Minesweeper game          
36 Numerical integration/Gauss-Legendre Quadrature              
36 Ordered partitions                
36 Pinstripe/Display            
36 RIPEMD-160              
36 Rosetta Code/Find bare lang tags                  
36 Safe primes and unsafe primes            
36 Square-free integers                  
36 Terminal control/Unicode output              
35 Arithmetic-geometric mean/Calculate Pi              
35 Bitmap/Bézier curves/Cubic            
35 Check output device is a terminal                  
35 Entropy/Narcissist                
35 Multiline shebang              
35 Parametrized SQL statement              
35 Pentagram              
34 Conjugate transpose                  
34 Mutex                
34 Palindrome dates        
34 Pattern matching              
34 Primality by Wilson's theorem                
34 Pythagoras tree            
34 RSA code          
34 Set puzzle                
34 Subset sum problem                
34 Topic variable                
33 Bioinformatics/base count          
33 Cheryl's birthday              
33 Continued fraction/Arithmetic/Construct from rational number              
33 Executable library                
33 Factorions            
33 Integer roots                  
33 Mertens function                  
33 Multi-dimensional array              
33 Multiplicative order                
33 Negative base numbers              
33 Old Russian measure of length                
33 Parse command-line arguments            
33 Partition an integer x into n primes                
33 Poker hand analyser            
33 Resistor mesh                    
33 Solve a Hidato puzzle                  
33 Sorting algorithms/Patience sort              
33 Straddling checkerboard        
33 Textonyms              
32 Bitcoin/address validation                
32 Bitmap/Bézier curves/Quadratic                  
32 Check input device is a terminal                
32 Church numerals                
32 Decimal floating point number to binary                
32 Determine if two triangles overlap                
32 Eban numbers                  
32 Execute SNUSP          
32 Four is magic        
32 Galton box animation            
32 Lah numbers                    
32 Rosetta Code/Find unimplemented tasks          
32 Sequence: smallest number with exactly n divisors          
32 Set of real numbers            
32 Terminal control/Cursor movement                
32 Type detection                
32 Use another language to call a function                
32 Write to Windows event log          
31 Apply a digital filter (direct form II transposed)                  
31 Bitmap/Histogram                
31 Check Machin-like formulas                  
31 Draw a rotating cube            
31 Faulhaber's formula                    
31 Faulhaber's triangle                
31 First class environments                
31 Implicit type conversion                
31 Keyboard macros      
31 Modular arithmetic                  
31 Numeric error propagation            
31 Perfect totient numbers              
31 Reflection/List properties                  
31 Simple database                  
31 Strong and weak primes              
31 Tau number              
31 URL parser              
31 Xiaolin Wu's line algorithm                
31 Zhang-Suen thinning algorithm                
30 Arena storage pool                  
30 Chaocipher              
30 Chat server                
30 Checkpoint synchronization                
30 Compiler/lexical analyzer                
30 Deconvolution/1D                  
30 Dice game probabilities                    
30 Diversity prediction theorem                
30 FTP                  
30 Gauss-Jordan matrix inversion                    
30 HTTPS/Authenticated              
30 Koch curve              
30 Length of an arc between two angles              
30 Mersenne primes                  
30 Mian-Chowla sequence              
30 Parallel brute force          
30 Pragmatic directives              
30 Rosetta Code/Fix code tags          
30 Sequence: smallest number greater than previous term with exactly n divisors            
30 State name puzzle                
30 Stream merge                  
30 Tau function              
30 Terminal control/Preserve screen                
30 Update a configuration file                
30 Verify distribution uniformity/Chi-squared test                    
30 Window creation/X11              
29 AVL tree                  
29 Bacon cipher                  
29 Death Star              
29 Decision tables            
29 Extra primes                
29 Find first and last set bit of a long integer            
29 First power of 2 that has leading decimal digits of 12              
29 Formal power series                
29 Jacobi symbol                  
29 Memory layout of a data structure                  
29 Sexy primes            
29 Smarandache prime-digital sequence              
29 Sum and product puzzle                
29 Super-d numbers                
29 Superellipse                  
29 Word break problem              
29 Yellowstone sequence                
28 Burrows–Wheeler transform                    
28 Chemical calculator                  
28 Find largest left truncatable prime in a given base                  
28 Honeycombs              
28 Longest common suffix          
28 Machine code              
28 Peano curve                  
28 Perlin noise              
28 Polyspiral                
28 Ramsey's theorem                  
28 Sorting algorithms/Cycle sort                  
28 The ISAAC Cipher                
28 Thiele's interpolation formula                
28 Weird numbers                  
28 World Cup group stage                  
27 Active Directory/Connect                
27 Angles (geometric), normalization and conversion                
27 Chebyshev coefficients                    
27 Coprimes                  
27 Create an object at a given address              
27 Cut a rectangle                
27 First perfect square in base n with n unique digits              
27 Go Fish              
27 Law of cosines - triples                
27 Natural sorting                  
27 Nautical bell                
27 Nonoblock                
27 Palindromic gapful numbers                
27 Paraffins                    
27 Pell's equation                  
27 Range consolidation              
27 Reflection/List methods              
27 Safe addition                  
27 Same fringe                
27 Solve a Holy Knight's tour                
27 Successive prime differences              
27 Table creation                  
27 Tonelli-Shanks algorithm                  
27 Zumkeller numbers                  
26 A* search algorithm                
26 Birthday problem                
26 Card shuffles                    
26 Distributed programming                
26 Fairshare between two and more                
26 Fermat numbers                  
26 Image convolution                
26 Kronecker product based fractals                  
26 Magic squares of singly even order                    
26 Minimum positive multiple in base 10 using only 0 and 1              
26 Möbius function              
26 N-smooth numbers                  
26 Numbers divisible by their individual digits, but not by the product of their digits.                
26 Numbers with prime digits whose sum is 13              
26 Plasma effect              
26 Ramer-Douglas-Peucker line simplification                  
26 Sequence of primorial primes                
26 Stirling numbers of the first kind                
26 Stirling numbers of the second kind                  
26 Sum of divisors                
26 Sum of the digits of n is substring of n              
26 Teacup rim text              
26 Unprimeable numbers                  
26 Words containing "the" substring              
25 Abelian sandpile model                
25 Color wheel                  
25 Elliptic curve arithmetic                    
25 Finite state machine                
25 Fraction reduction                  
25 Function frequency                  
25 Generate random chess position                    
25 Hough transform                    
25 Idiomatically determine all the characters that can be used for symbols                  
25 Intersecting number wheels              
25 Mayan numerals              
25 Monads/Maybe monad          
25 Parse an IP Address                
25 Pierpont primes              
25 Play recorded sounds            
25 RCRPG          
25 Shift list elements to left by 3        
25 Sierpinski pentagon                  
25 Sorting algorithms/Cocktail sort with shifting bounds                  
25 Strange plus numbers              
25 Welch's t-test                    
25 Yahoo! search interface                  
24 Audio alarm            
24 Bin given limits                  
24 Cipolla's algorithm                  
24 Circular primes                  
24 Find words with alternating vowels and consonants            
24 Fixed length records                  
24 Hunt the Wumpus              
24 K-means++ clustering                  
24 Linux CPU utilization                  
24 List rooted trees                
24 Mind boggling card trick              
24 Numbers with equal rises and falls                
24 Percolation/Mean run density                  
24 Permutations/Rank of a permutation                  
24 Pseudo-random numbers/PCG32              
24 Shortest common supersequence                  
24 Simulate input/Keyboard              
24 Superpermutation minimisation                  
24 Total circles area                    
24 Video display modes                
23 Active Directory/Search for a user                    
23 Alternade words                
23 Base58Check encoding                    
23 Create an object/Native demonstration                
23 Deming's Funnel                    
23 Elementary cellular automaton/Random Number Generator                  
23 Find words which contains more than 3 e vowels              
23 Kolakoski sequence                    
23 Lucky and even lucky numbers                
23 Main step of GOST 28147-89                  
23 Make a backup file                
23 Markov chain text generator                  
23 Next highest int from digits              
23 Playfair cipher                    
23 Primes which sum of digits is 25          
23 Product of divisors                
23 Random Latin squares              
23 Record sound                
23 Reverse the gender of a string                  
23 SOAP            
23 Solve a Hopido puzzle                  
23 Spelling of ordinal numbers              
23 Strange unique prime triplets              
22 Commatizing numbers                
22 Cousin primes              
22 De Bruijn sequences                    
22 Find duplicate files                  
22 Increasing gaps between consecutive Niven numbers                    
22 Levenshtein distance/Alignment                    
22 Long literals, with continuations                
22 Magnanimous numbers                
22 Matrix chain multiplication                    
22 Padovan sequence            
22 Pig the dice game/Player                
22 Pseudo-random numbers/Xorshift star                
22 Self numbers                
22 Snake and Ladder                  
22 Sokoban                  
22 Solve a Numbrix puzzle                  
22 Strange numbers                
22 UPC                
22 Vigenère cipher/Cryptanalysis                    
22 Word wheel              
21 ABC words                
21 ASCII art diagram converter                  
21 Bioinformatics/Sequence mutation              
21 Data Encryption Standard                    
21 Eertree                  
21 Esthetic numbers                
21 Joystick position              
21 K-d tree                  
21 Kosaraju                    
21 Mastermind              
21 Median filter                    
21 Monads/List monad          
21 Native shebang                  
21 Numeric separator syntax                  
21 Orbital elements                    
21 Reflection/Get source              
21 Sum data type                
21 Vogel's approximation method                    
21 Window management            
20 Addition chains                    
20 Assertions in design by contract                    
20 Bitcoin/public point to address                
20 Cistercian numerals                  
20 File size distribution                  
20 Index finite lists of positive integers                    
20 Montgomery reduction                    
20 N-body problem                    
20 Nested templated data                  
20 Numbers which binary and ternary digit sum are prime              
20 P-value correction                    
20 Partition function P                
20 Polynomial synthetic division                  
20 Sunflower fractal                
20 Ulam numbers                  
19 15 puzzle solver                
19 Abelian sandpile model/Identity                  
19 Arithmetic coding/As a generalized change of radix                  
19 Bilinear interpolation                    
19 Change e letters to i in words            
19 Code segment unload                    
19 Color quantization                
19 Common sorted list            
19 Elementary cellular automaton/Infinite length                    
19 Exponentiation with infix operators in (or operating on) the base                
19 Knuth's power tree                  
19 Line circle intersection                    
19 Metallic ratios                  
19 Names to numbers                
19 Odd words                
19 Pancake numbers                
19 Perceptron                
19 Percolation/Site percolation                    
19 Primes - allocate descendants to their ancestors                  
19 Print debugging statement                  
19 Readline interface                    
19 SQL-based authentication                    
19 Selective file copy                  
19 Show the (decimal) value of a number of 1s appended with a 3, then squared              
19 Sierpinski arrowhead curve                  
19 Simulate input/Mouse            
19 Untrusted environment                    
19 Zeckendorf arithmetic                    
18 Canonicalize CIDR                  
18 Changeable words                  
18 Compiler/code generator                  
18 Draw pixel 2              
18 EKG sequence convergence                  
18 Find URI in text                
18 Imaginary base numbers                    
18 Just in time processing on a character stream                    
18 Latin Squares in reduced form                  
18 Monads/Writer monad                
18 Nice primes                
18 Nimber arithmetic                    
18 Nonogram solver                
18 Rare numbers                
18 Solve triangle solitare puzzle                    
18 Transportation problem                    
18 Twin primes            
17 Additive primes                
17 Biorhythms                  
17 Bitmap/Read an image through a pipe                  
17 Calkin-Wilf sequence                  
17 Compiler/virtual machine interpreter                    
17 Find if a point is within a triangle                    
17 Find prime numbers of the form n*n*n+2              
17 Find words which contains all the vowels            
17 Find words which first and last three letters are equals              
17 HTTPS/Client-authenticated                    
17 Matrix digital rain                  
17 Merge and aggregate datasets                
17 Most frequent k chars distance                
17 NYSIIS                    
17 Padovan n-step number sequences                
17 Particle swarm optimization                  
17 Percolation/Bond percolation                    
17 Percolation/Mean cluster density                    
17 Piprimes              
17 Prime words                
17 Proof                    
17 Retrieve and search chat history                  
17 Separate the house number from the street name                    
17 Suffix tree                  
17 Summarize primes                
17 Tarjan                    
17 Terminal control/Positional read                
17 Word search                    
16 Aspect oriented programming              
16 Bitmap/PPM conversion through a pipe                    
16 Chernick's Carmichael numbers                  
16 Erdős-primes                  
16 Free polyominoes enumeration                    
16 Frobenius numbers                
16 Geometric algebra                  
16 Getting the number of decimals                
16 Neighbour primes                
16 Next special primes                
16 Peaceful chess queen armies                    
16 Prime triplets                
16 Pseudo-random numbers/Splitmix64                  
16 Ramanujan's constant                    
16 Self-hosting compiler                  
16 Sequence: nth number with exactly n divisors                  
16 Snake              
16 Vibrating rectangles                
15 Compiler/syntax analyzer                    
15 Cyclotomic polynomial                    
15 Find prime n for that reversed n is also prime              
15 Four is the number of letters in the ...                    
15 Functional coverage tree                  
15 Logistic curve fitting in epidemiology                    
15 Numerical integration/Adaptive Simpson's method                    
15 Odd squarefree semiprimes                
15 OpenWebNet password                
15 Pseudo-random numbers/Combined recursive generator MRG32k3a                    
15 Rendezvous                
15 Singly-linked list/Element removal                  
15 Smallest power of 6 whose decimal expansion contains n              
15 Square root by hand                  
15 Words from neighbour ones              
14 Compare sorting algorithms' performance                  
14 Compiler/AST interpreter                    
14 Factorial base numbers indexing permutations of a collection                  
14 Find words which contains most consonants                
14 Generalised floating point addition                  
14 Gradient descent                  
14 Jaro-Winkler distance                
14 Permutations with some identical elements                    
14 Primes with digits in nondecreasing order                
14 Print itself                  
14 SHA-256 Merkle tree                  
14 Topological sort/Extracted top item                    
14 XML validation                  
13 Banker's algorithm                    
13 Common list elements              
13 Consecutive Primes With Ascending Or Descending Differences                
13 Continued fraction/Arithmetic/G(matrix ng, continued fraction n)                    
13 Deconvolution/2D+                    
13 Find first missing positive              
13 Palindromic primes                  
13 Pisano period                    
13 Quadrat Special Primes                
13 Simulated annealing                    
13 Sine wave                
13 Substring primes                
12 Canny edge detector                    
12 French Republican calendar                  
12 Greed                    
12 Interactive help                    
12 Launch rocket with countdown and acceleration in stdout                    
12 Longest palindromic substrings                
12 Minimal steps down to 1                    
12 Modified random distribution                    
12 Order by pair comparisons                  
12 Practical numbers                  
12 Railway circuit                    
12 Run as a daemon or service                    
12 Safe mode                    
12 Sierpinski curve                  
12 Smallest numbers              
12 Smallest square that begins with n                
12 Sorting algorithms/Tree sort on a linked list                    
12 Tetris                  
12 Tree from nesting levels                    
12 Two bullet roulette                    
12 Untouchable numbers                
12 VList                    
12 XXXX redacted                    
11 Almkvist-Giullera formula for pi                    
11 Audio frequency generator                  
11 Catmull–Clark subdivision surface                    
11 Checksumcolor                  
11 Coprime triplets                
11 Cubic Special Primes                
11 Geohash                  
11 Minkowski question-mark function                    
11 One-time pad                    
11 Pentomino tiling                    
11 Resistance calculator                    
11 Sierpinski square curve                    
11 Special factorials                    
11 Suffixation of decimal numbers                    
11 Text completion                  
11 Tree datastructures                    
11 Unit testing                    
11 Using a speech engine to highlight words                
10 Bioinformatics/Subsequence                  
10 Colour pinstripe/Printer                    
10 Combinations with repetitions/Square digit chain                    
10 Execute CopyPasta Language                    
10 External sort                    
10 Faces from a mesh                    
10 Non-transitive dice                  
10 Numerical and alphabetical suffixes                    
10 Penrose tiling                    
10 Pinstripe/Printer                    
10 Powerful numbers                    
10 Spoof game                  
10 Three word location                  
10 Time-based one-time password algorithm                    
9 Curve that touches three points                  
9 Display an outline as a nested table                  
9 Fibonacci matrix-exponentiation                    
9 Graph colouring                    
9 Hourglass puzzle                    
9 IPC via named pipe                    
9 Morpion solitaire                  
9 Parse EBNF                    
9 Pseudorandom number generator image                  
9 Quoting constructs                  
9 Range modifications                  
9 Resistance network calculator                    
9 Rosetta Code/Rank languages by number of users                    
9 Rosetta Code/Tasks without examples                    
9 Sort an outline at every level                  
9 Square Form Factorization                    
9 Starting a web browser                    
9 Text to HTML                    
9 User defined pipe and redirection operators                  
9 War card game                    
8 Air mass                    
8 Continued fraction/Arithmetic/G(matrix ng, continued fraction n1, continued fraction n2)                    
8 Count the coins/0-1                    
8 Elliptic Curve Digital Signature Algorithm                    
8 Fibonacci heap                    
8 Multidimensional Newton-Raphson method                    
8 Robots                  
8 Special Divisors                  
7 16 puzzle game                
7 Brace expansion using ranges                  
7 Compiler/Verifying syntax                    
7 Distinct Palindromes Within Decimal Numbers                    
7 Doubly-linked list/Element removal                    
7 Mayan calendar                    
7 OpenGL/Utah Teapot                    
7 P-Adic numbers, basic                    
7 Random sentence from book                  
7 Recursive descent parser generator                    
7 URL shortener                  
6 Bioinformatics/global alignment                    
6 I'm a software engineer, get me out of here                  
6 OpenGL pixel shader                  
6 Price list behind API                    
6 Remote agent/Agent logic                    
6 Remote agent/Simulation                    
6 Rosetta Code/Run examples                    
6 Smallest enclosing circle problem                    
6 Tamagotchi emulator                    
6 Terminal control/Restricted width positional input/No wrapping                  
6 Terminal control/Restricted width positional input/With wrapping                  
5 Addition-chain exponentiation                    
5 Audio overlap loop                
5 Black Box                  
5 Boids                    
5 Chess player                    
5 Discrete Fourier transform                    
5 Hexapawn                  
5 P-Adic square roots                    
5 Process SMIL directives in XML data                    
5 Raster bars                    
5 Remote agent/Agent interface                    
5 Solve a Rubik's Cube                    
5 Strassen's algorithm                    
5 Waveform analysis/Doh ray me                    
5 WiktionaryDumps to words                    
4 Generalised floating point multiplication                  
4 Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique                  
4 OLE automation                  
4 Solving coin problems                    
4 Unicode polynomial equation                    
4 Using the Meetup.com API                  
4 Weather routing                    
3 Rosetta Code/List authors of task descriptions                    
3 Ukkonen’s suffix tree construction                    
3 Vidir                    
3 Waveform analysis/Top and tail                    
2 15 puzzle game in 3D                  
2 Blackjack strategy                    
2 CLI-based maze-game                    
2 IRC gateway