Category:C sharp

1

• 100 doors

2

• 24 game
• 24 game/CSharp

9

• 99 Bottles of Beer

A

• A+B
• Abstract type
• Accumulator factory
• Ackermann function
• Address of a variable
• Align columns
• Amb
• Anagrams
• Animate a pendulum
• Animation
• Anonymous recursion
• Apply a callback to an array
• Arbitrary-precision integers (included)
• Arithmetic-geometric mean
• Arithmetic/Complex
• Arithmetic/Integer
• Arithmetic/Rational
• Array concatenation
• Arrays
• Assertions
• Associative array/Creation
• Associative array/Iteration
• Atomic updates
• Averages/Arithmetic mean
• Averages/Median
• Averages/Mode
• Averages/Pythagorean means
• Averages/Root mean square
• Averages/Simple moving average

B

• Balanced brackets
• Best shuffle
• Binary digits
• Binary search
• Binary strings
• Bitmap
• Bitmap/Flood fill
• Bitmap/Read a PPM file
• Bitmap/Write a PPM file
• Bitwise IO
• Bitwise operations
• Boolean values
• Break OO privacy
• Brownian tree
• Bulls and cows
• Bulls and cows/Player

C

• Caesar cipher
• Calendar
• Call a function in a shared library
• Case-sensitivity of identifiers
• Catalan numbers
• Character codes
• Character matching
• Check that file exists
• Classes
• Closest-pair problem
• Closures/Value capture
• Collections
• Color of a screen pixel
• Combinations
• Command-line arguments
• Comments
• Compound data type
• Concurrent computing
• Conditional structures
• Constrained genericity
• Continued fraction/Arithmetic/Construct from rational number
• Conway's Game of Life
• Copy a string
• Count in factors
• Count in octal
• Count occurrences of a substring
• Create a file
• Create a two-dimensional array at runtime
• Create an HTML table
• CSV to HTML translation

D

• Date format
• Date manipulation
• Day of the week
• Deal cards for FreeCell
• Deepcopy
• Define a primitive data type
• Delegates
• Delete a file
• Detect division by zero
• Determine if a string is numeric
• Determine if only one instance is running
• Dining philosophers
• Distributed programming
• DNS query
• Documentation
• Dot product
• Doubly-linked list/Definition
• Doubly-linked list/Element definition
• Doubly-linked list/Element insertion
• Doubly-linked list/Traversal
• Draw a sphere

E

• Echo server
• Empty program
• Empty string
• Enumerations
• Environment variables
• Equilibrium index
• Ethiopian multiplication
• Euler method
• Evaluate binomial coefficients
• Even or odd
• Events
• Evolutionary algorithm
• Exceptions
• Exceptions/Catch an exception thrown in a nested call
• Execute a system command
• Execute Brain****
• Execute HQ9+
• Exponentiation operator

F

• Factorial
• Factors of a Mersenne number
• Factors of an integer
• Fibonacci sequence
• File IO
• File modification time
• File size
• Filter
• Find common directory path
• Find limit of recursion
• Find the missing permutation
• First-class functions
• First-class functions/Use numbers analogously
• Five weekends
• FizzBuzz
• Flatten a list
• Forest fire
• Formatted numeric output
• Forward difference
• Four bit adder
• Function composition

F cont.

• Function definition

G

• Generator/Exponential
• Generic swap
• Gray code
• Grayscale image
• Greatest common divisor
• Greatest element of a list
• Greatest subsequential sum
• Guess the number
• Guess the number/With feedback
• GUI component interaction
• GUI enabling/disabling of controls

H

• Hailstone sequence
• Hamming numbers
• Handle a signal
• Happy numbers
• Hash from two arrays
• Haversine formula
• Hello world/Graphical
• Hello world/Newline omission
• Hello world/Standard error
• Hello world/Text
• Hello world/Web server
• Here document
• Higher-order functions
• History variables
• Hofstadter Figure-Figure sequences
• Hofstadter Q sequence
• Hofstadter-Conway $10,000 sequence
• Holidays related to Easter
• Honeycombs
• Horizontal sundial calculations
• Horner's rule for polynomial evaluation
• Host introspection
• Hostname
• HTTP
• HTTPS
• Huffman coding

I

• Identity matrix
• Image noise
• Include a file
• Increment a numerical string
• Infinity
• Inheritance/Multiple
• Inheritance/Single
• Input loop
• Integer comparison
• Integer sequence
• Inverted index

J

• Jensen's Device
• JSON

K

• Keyboard input/Keypress check
• Keyboard input/Obtain a Y or N response
• Knapsack problem/0-1
• Knapsack problem/Unbounded
• Knight's tour
• Knuth shuffle

L

• Langton's ant
• Last Friday of each month
• Last letter-first letter
• Leap year
• Least common multiple
• Letter frequency
• Levenshtein distance
• Linear congruential generator
• List comprehensions
• Literals/Integer
• Literals/String
• Logical operations
• Long multiplication
• Longest common subsequence
• Look-and-say sequence
• Loop over multiple arrays simultaneously
• Loops/Break
• Loops/Continue
• Loops/Do-while
• Loops/Downward for
• Loops/For
• Loops/For with a specified step
• Loops/Foreach
• Loops/Infinite
• Loops/N plus one half
• Loops/Nested
• Loops/While
• Lucas-Lehmer test
• Luhn test of credit card numbers
• LZW compression

M

• Man or boy test
• Mandelbrot set
• Matrix multiplication
• Matrix transposition
• MD5
• MD5/Implementation
• Menu
• Metered concurrency
• Miller-Rabin primality test
• Minesweeper game
• Monte Carlo methods
• Monty Hall problem
• Morse code
• Mouse position
• Multiple distinct objects
• Multiplication tables
• Multisplit
• Munching squares
• Mutual recursion

N

• N-queens problem
• Named parameters
• Non-decimal radices/Input
• Nth root
• Null object
• Number names
• Number reversal game
• Numerical integration

O

• Object serialization
• One-dimensional cellular automata
• OpenGL
• Ordered words

P

• Palindrome detection
• Pangram checker
• Parallel calculations
• Parametric polymorphism
• Parametrized SQL statement
• Parsing/RPN calculator algorithm
• Partial function application
• Pascal's triangle
• Perfect numbers
• Permutations
• Pi
• Play recorded sounds
• Playing cards
• Pointers and references
• Polymorphic copy
• Polymorphism
• Polynomial regression
• Power set
• Price fraction
• Primality by trial division
• Prime decomposition

P cont.

• Probabilistic choice
• Program name
• Program termination

Q

• Quaternion type
• Queue/Definition
• Queue/Usage
• Quine

R

• Random number generator (device)
• Random number generator (included)
• Random numbers
• Range expansion
• Range extraction
• Read a file line by line
• Read a specific line from a file
• Read entire file
• Real constants and functions
• Reduced row echelon form
• Regular expressions
• Remove duplicate elements
• Rename a file
• Repeat a string
• Respond to an unknown method call
• Return multiple values
• Reverse a string
• Roman numerals/Decode
• Roman numerals/Encode
• Roots of a quadratic function
• Roots of unity
• Rosetta Code/Count examples
• Rosetta Code/Find unimplemented tasks
• Rosetta Code/Rank languages by popularity
• Rot-13
• Run-length encoding

S

• Search a list
• Secure temporary file
• SEDOLs
• Sequence of non-squares
• Set of real numbers
• SHA-1
• SHA-256
• Shell one-liner
• Short-circuit evaluation
• Show the epoch
• Sierpinski carpet
• Sierpinski triangle
• Sieve of Eratosthenes
• Simple windowed application
• Singleton
• Singly-linked list/Element definition
• Singly-linked list/Element insertion
• Singly-linked list/Traversal
• Sleep
• Sockets
• Sort an array of composite structures
• Sort an integer array
• Sort stability
• Sort using a custom comparator
• Sorting algorithms/Bogosort
• Sorting algorithms/Bubble sort
• Sorting algorithms/Cocktail sort
• Sorting algorithms/Comb sort
• Sorting algorithms/Counting sort
• Sorting algorithms/Gnome sort
• Sorting algorithms/Heapsort
• Sorting algorithms/Insertion sort
• Sorting algorithms/Merge sort
• Sorting algorithms/Pancake sort
• Sorting algorithms/Permutation sort
• Sorting algorithms/Quicksort
• Sorting algorithms/Selection sort
• Sorting algorithms/Shell sort
• Sorting algorithms/Sleep sort
• Sorting algorithms/Stooge sort
• Soundex
• Speech synthesis
• Spiral matrix
• Stack
• Stack traces
• Stair-climbing puzzle
• Standard deviation
• Stem-and-leaf plot
• String case
• String concatenation
• String interpolation (included)
• String length
• Strip a set of characters from a string
• Strip block comments
• Strip whitespace from a string/Top and tail
• Substring
• Substring/Top and tail
• Sudoku
• Sum and product of an array
• Sum digits of an integer
• Sum of a series
• Sum of squares
• Symmetric difference
• System time

T

• Take notes on the command line
• Terminal control/Clear the screen
• Terminal control/Display an extended character
• Ternary logic
• Test a function
• Text processing/2
• Text processing/Max licenses in use
• Tic-tac-toe
• Time a function
• Tokenize a string
• Top rank per group
• Towers of Hanoi
• Tree traversal
• Trigonometric functions
• Truncatable primes
• Truncate a file

U

• Unbias a random generator
• Undefined values
• Unicode variable names
• URL decoding
• URL encoding
• User input/Text

V

• Variable size/Get
• Variables
• Variadic function
• Vector products

W

• Walk a directory/Non-recursively
• Walk a directory/Recursively
• Web scraping
• Window creation
• Wireworld
• Word wrap
• Write to Windows event log

X

• XML/DOM serialization
• XML/Input
• XML/Output
• XML/XPath

Y

• Y combinator
• Yahoo! search interface
• Yin and yang

Z

• Zebra puzzle
• Zig-zag matrix