Reports:Tasks not implemented in C

Automatically Generated: This result set should be accurate to within fifteen minutes of the last viewing.

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Awareness

If C is a language you like, or are interested in, please inform your fellow members of the C community; this page can't be emptied without your and their participation.

Not implemented

These are currently not implemented in C. Please implement some if you can. If any tasks are not possible or too complex in C, they should not be on this list. To mark a task as such, add {{omit from|C}}, preserving the capitalization of the language, to that task. It will appear below under the "Not Considered" section.

1

• 15 puzzle solver

2

• 21 Game

A

• ASCII art diagram converter
• Associative array/Merging

B

• Brace expansion

C

• Check Machin-like formulas
• Church Numerals
• Color wheel
• Colour pinstripe/Printer
• Commatizing numbers
• Cyclotomic Polynomial

D

• De Bruijn sequences
• Deming's Funnel

E

• Eertree
• Elementary cellular automaton/Infinite length

F

• Faces from a mesh
• Factorial base numbers indexing permutations of a collection
• Find duplicate files
• Fixed length records
• Functional coverage tree

G

• Gauss-Jordan matrix inversion
• Graph colouring

H

• HTTPS/Client-authenticated
• Hash join
• Hunt The Wumpus

I

• Idiomatically determine all the characters that can be used for symbols
• Index finite lists of positive integers

J

• Jacobi symbol
• Joystick position

K

• Knuth's power tree
• Kosaraju

L

• Latin Squares in reduced form
• Long year?
• Lucky and even lucky numbers
• Lychrel numbers

M

• Mastermind
• Mayan numerals
• Metallic ratios
• Mind boggling card trick
• Minimal steps down to 1
• Monads/List monad
• Monads/Maybe monad
• Monads/Writer monad

N

• Nested templated data
• Nonoblock
• Nonogram solver
• Numerical and alphabetical suffixes

O

• OLE Automation
• One-time pad
• OpenWebNet Password
• Order disjoint list items

P

• Pig the dice game/Player
• Pinstripe/Printer
• Play recorded sounds
• Playfair cipher

R

• Ramanujan's constant
• Rare numbers
• Rosetta Code/Count examples
• Rosetta Code/Find bare lang tags
• Rosetta Code/Find unimplemented tasks
• Rosetta Code/Fix code tags

S

• Sequence: nth number with exactly n divisors
• Solve a Holy Knight's tour
• Solve a Hopido puzzle
• Solve a Numbrix puzzle
• Solve the no connection puzzle
• Successive prime differences
• Suffixation of decimal numbers
• Sum and Product Puzzle
• Super-d numbers

T

• Tarjan
• Twelve statements

U

• URL parser

W

• Word search
• World Cup group stage

Y

• Yahoo! search interface
• Yellowstone sequence

Z

• Zumkeller numbers

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Draft tasks without implementation

These tasks are drafts, meaning they largely need more work to turn them into full tasks. Perhaps you can help by trying to implement them in C (after all, one of the key requirements for a task being non-draft is multiple implementations, preferably in widely different languages) but be aware that this may be difficult because of lack of definition of the task itself.

1

• 15 Puzzle Game in 3D
• 16 Puzzle Game

A

• Arithmetic coding/As a generalized change of radix
• Assertions in design by contract
• AudioAlarm
• Audio Overlap Loop
• Audio frequency generator

B

• Base58Check encoding
• Black Box
• Blackjack strategy

C

• CLI-based maze-game
• Checksumcolor
• Chemical Calculator
• Chess player
• Code segment unload
• Combinations with repetitions/Square Digit Chain
• Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N)
• Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)
• Create DWM statusbar
• Curve that touches three points

D

• Decimal floating point number to binary
• Display an outline as a nested table

E

• Execute CopyPasta Language
• External sort

F

• Fibonacci heap
• Fibonacci matrix-exponentiation
• Find URI in text
• Free polyominoes enumeration
• French Republican calendar

G

• Generalised floating point addition
• Generalised floating point multiplication
• Geohash
• Geometric algebra
• Gradient descent
• Greed

H

• Hexapawn

I

• I'm a software engineer, get me out of here
• IRC gateway
• Interactive Help

L

• Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique
• Launch rocket with countdown and acceleration in stdout
• Length of an arc between two angles
• Long literals, with continuations

M

• Make a backup file
• Markov chain text generator
• Mayan calendar
• Minimum positive multiple in base 10 using only 0 and 1
• Most frequent k chars distance
• Multidimensional Newton-Raphson method
• Möbius function

N

• NYSIIS
• Names to numbers

P

• Parse EBNF
• Particle Swarm Optimization
• Penrose tiling
• Pentomino tiling
• Perceptron
• Permutations with some identical elements
• Pisano period
• Polynomial synthetic division
• Powerful numbers
• Print itself
• Process SMIL directives in XML data

Q

• Quoting constructs

R

• Railway circuit
• Random Latin Squares
• Raster bars
• Recursive descent parser generator
• Resistance Calculator
• Resistance Network Calculator
• Reverse the gender of a string
• Robots
• Rosetta Code/List authors of task descriptions
• Rosetta Code/Rank languages by number of users
• Rosetta Code/Run examples
• Rosetta Code/Tasks without examples

S

• Safe mode
• Selective File Copy
• Self-hosting compiler
• Separate the house number from the street name
• Sierpinski curve
• Sierpinski square curve
• Simulated annealing
• Sine wave
• Snake
• Solve a Rubik's Cube
• Solve triangle solitare puzzle
• Solving coin problems
• Starting a web browser
• Suffix tree

T

• Tamagotchi emulator
• Terminal control/Restricted width positional input/No wrapping
• Terminal control/Restricted width positional input/With wrapping
• Tetris
• Text to HTML
• Time-based One-time Password Algorithm
• Transportation problem
• Tree datastructures

U

• UPC
• URL shortener
• Ukkonen’s Suffix Tree Construction
• Unicode polynomial equation
• Unit testing
• User defined pipe and redirection operators
• Using a Speech engine to highlight words
• Using the Meetup.com API

V

• Vidir

W

• Waveform analysis/Doh ray me
• Waveform analysis/Top and tail
• Weather Routing
• Word break problem

X

• XXXX redacted

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Requiring Attention

Examples

These tasks have implementations in C, but somebody, somewhere, decided that the example implementation was faulty or in some other way requiring attention. If you're familiar with the task and language, please consider reviewing/correcting the example and removing the notice.

A

• Arbitrary-precision integers (included)

B

• Bitmap/Flood fill

N

• Native shebang

R

• Ramsey's theorem
• Rock-paper-scissors
• Rosetta Code/Rank languages by popularity

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Other pages

These are other pages related to C which require attention; with your knowledge and assistance, we can improve the quality of the site's content.

C

• Clang

G

• Gcc

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Not Considered

These tasks are not generally counted toward "unimplemented", as somebody, somewhere, decided that C was inappropriate for these tasks, or implementations of them would be unenlightening. Feel free to try your hand at them anyway.

A

• Accumulator factory
• Add a variable to a class instance at runtime

B

• Break OO privacy

C

• Constrained genericity
• Create an object/Native demonstration

D

• Define a primitive data type
• Dynamic variable names

F

• First-class functions/Use numbers analogously

H

• History variables

I

• Interactive programming

O

• Object serialization

P

• Parametric polymorphism
• Pattern matching
• Proof

R

• Reflection/Get source
• Reflection/List methods
• Reflection/List properties
• Respond to an unknown method call
• Runtime evaluation
• Runtime evaluation/In an environment

S

• Send an unknown method call

T

• Topic variable

V

• Video display modes

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End of List

Again, feel free to try your hand at any of the tasks listed on this page.