Random Task

open System
open System.IO

[<EntryPoint>]
let main _ = 
    let rand = new Random(DateTime.Now.ToString().GetHashCode())
    let lst = File.ReadAllLines("task.txt")
    Console.WriteLine(lst.[rand.Next(0, lst.Length)])
    Console.ReadLine() |> ignore
    0
100 doors
100 prisoners
15 Puzzle Game
15 Puzzle Game in 3D
15 puzzle solver
16 Puzzle Game
2048
21 Game
24 game
24 game/Solve
3D
4-rings or 4-squares puzzle
9 billion names of God the integer
99 Bottles of Beer
A* search algorithm
A+B
ABC Problem
AKS test for primes
ASCII art diagram converter
AVL tree
Abbreviations, automatic
Abbreviations, easy
Abbreviations, simple
Abelian sandpile model
Abstract type
Abundant odd numbers
Abundant, deficient and perfect number classifications
Accumulator factory
Ackermann function
Active Directory/Connect
Active Directory/Search for a user
Active object
Add a variable to a class instance at runtime
Addition chains
Addition-chain exponentiation
Address of a variable
Align columns
Aliquot sequence classifications
Almost prime
Amb
Amicable pairs
Anagrams
Anagrams/Deranged anagrams
Angle difference between two bearings
Angles (geometric), normalization and conversion
Animate a pendulum
Animation
Anonymous recursion
Anti-primes
Append a record to the end of a text file
Apply a callback to an array
Apply a digital filter (direct form II transposed)
Approximate Equality
Arbitrary-precision integers (included)
Archimedean spiral
Arena storage pool
Arithmetic
Arithmetic coding/As a generalized change of radix
Arithmetic evaluation
Arithmetic-geometric mean
Arithmetic-geometric mean/Calculate Pi
Arithmetic/Complex
Arithmetic/Integer
Arithmetic/Rational
Array concatenation
Array length
Arrays
Aspect Oriented Programming
Assertions
Assertions in design by contract
Associative array/Creation
Associative array/Iteration
Atomic updates
Attractive numbers
Audio Overlap Loop
Audio frequency generator
AudioAlarm
Average loop length
Averages/Arithmetic mean
Averages/Mean angle
Averages/Mean time of day
Averages/Median
Averages/Mode
Averages/Pythagorean means
Averages/Root mean square
Averages/Simple moving average
Babbage problem
Bacon cipher
Balanced brackets
Balanced ternary
Banker's algorithm
Barnsley fern
Base58Check encoding
Base64 decode data
Base64 encode data
Basic language learning
Bell numbers
Benford's law
Bernoulli numbers
Best shuffle
Bilinear interpolation
Binary digits
Binary search
Binary strings
Bioinformatics/Sequence mutation
Bioinformatics/base count
Birthday problem
Bitcoin/address validation
Bitcoin/public point to address
Bitmap
Bitmap/Bresenham's line algorithm
Bitmap/Bézier curves/Cubic
Bitmap/Bézier curves/Quadratic
Bitmap/Flood fill
Bitmap/Histogram
Bitmap/Midpoint circle algorithm
Bitmap/PPM conversion through a pipe
Bitmap/Read a PPM file
Bitmap/Read an image through a pipe
Bitmap/Write a PPM file
Bitwise IO
Bitwise operations
Black Box
Blackjack strategy
Boids
Boolean values
Box the compass
Brace expansion
Brazilian numbers
Break OO privacy
Brownian tree
Bulls and cows
Bulls and cows/Player
Burrows–Wheeler transform
CRC-32
CSV data manipulation
CSV to HTML translation
CUSIP
Caesar cipher
Calculating the value of e
Calendar
Calendar - for "REAL" programmers
Call a foreign-language function
Call a function
Call a function in a shared library
Call an object method
Canny edge detector
Cantor set
Card shuffles
Carmichael 3 strong pseudoprimes
Cartesian product of two or more lists
Case-sensitivity of identifiers
Casting out nines
Catalan numbers
Catalan numbers/Pascal's triangle
Catamorphism
Catmull–Clark subdivision surface
Chaocipher
Chaos game
Character codes
Chat server
Chebyshev coefficients
Check Machin-like formulas
Check input device is a terminal
Check output device is a terminal
Check that file exists
Checkpoint synchronization
Checksumcolor
Checksums
Chemical Calculator
Chernick's Carmichael numbers
Cheryl's Birthday
Chess player
Chess player/Move generation
Chess player/Program options and user interface
Chess player/Search and evaluation
Chinese remainder theorem
Chinese zodiac
Cholesky decomposition
Chowla numbers
Church Numerals
Cipolla's algorithm
Circles of given radius through two points
Classes
Classic CS problems and programs
Closest-pair problem
Closures/Value capture
Code segment unload
Collections
Color of a screen pixel
Color quantization
Color wheel
Colour bars/Display
Colour pinstripe/Display
Colour pinstripe/Printer
Combinations
Combinations and permutations
Combinations with repetitions
Combinations with repetitions/Square Digit Chain
Comma quibbling
Command-line arguments
Commatizing numbers
Comments
Compare a list of strings
Compare sorting algorithms' performance
Compile-time calculation
Compiler/ Verifying Syntax
Compiler/AST interpreter
Compiler/code generator
Compiler/lexical analyzer
Compiler/syntax analyzer
Compiler/virtual machine interpreter
Compound data type
Compression
Concurrency
Concurrent computing
Conditional loops
Conditional structures
Conjugate transpose
Constrained genericity
Constrained random points on a circle
Constructive Solid Geometry
Continued fraction
Continued fraction/Arithmetic/Construct from rational number
Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N)
Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)
Convert decimal number to rational
Convert seconds to compound duration
Convex hull
Conway's Game of Life
Copy a string
Copy stdin to stdout
Count in factors
Count in octal
Count occurrences of a substring
Count the coins
Cramer's rule
Create a file
Create a file on magnetic tape
Create a two-dimensional array at runtime
Create an HTML table
Create an object at a given address
Create an object/Native demonstration
Cuban primes
Cumulative standard deviation
Currency
Currying
Curve that touches three points
Cut a rectangle
Cycle detection
DNS query
Damm algorithm
Data Encryption Standard
Data Structures
Database operations
Date and time
Date format
Date manipulation
Day of the week
Days between dates
De Bruijn sequences
Deal cards for FreeCell
Death Star
Decimal floating point number to binary
Decision tables
Deconvolution/1D
Deconvolution/2D+
Deepcopy
Define a primitive data type
Delegates
Delete a file
Deming's Funnel
Department Numbers
Detect division by zero
Determinant and permanent
Determine if a string has all the same characters
Determine if a string has all unique characters
Determine if a string is collapsible
Determine if a string is numeric
Determine if a string is squeezable
Determine if only one instance is running
Determine if two triangles overlap
Dice game probabilities
Digital root
Digital root/Multiplicative digital root
Digital signal processing
Dijkstra's algorithm
Dinesman's multiple-dwelling problem
Dining philosophers
Discordian date
Display a linear combination
Display an outline as a nested table
Distributed programming
Diversity prediction theorem
Documentation
Dot product
Doubly-linked list/Definition
Doubly-linked list/Element definition
Doubly-linked list/Element insertion
Doubly-linked list/Traversal
Dragon curve
Draw a clock
Draw a cuboid
Draw a pixel
Draw a rotating cube
Draw a sphere
Draw pixel 2
Dutch national flag problem
Dynamic variable names
EKG sequence convergence
Eban numbers
Echo server
Eertree
Egyptian division
Egyptian fractions
Element-wise operations
Elementary cellular automaton
Elementary cellular automaton/Infinite length
Elementary cellular automaton/Random Number Generator
Elliptic Curve Digital Signature Algorithm
Elliptic curve arithmetic
Emirp primes
Empty directory
Empty program
Empty string
Encryption
Enforced immutability
Entropy
Entropy/Narcissist
Enumerations
Environment variables
Equilibrium index
Ethiopian multiplication
Euler method
Euler's identity
Euler's sum of powers conjecture
Evaluate binomial coefficients
Even or odd
Events
Evolutionary algorithm
Exceptions
Exceptions/Catch an exception thrown in a nested call
Executable library
Execute Brain****
Execute CopyPasta Language
Execute HQ9+
Execute SNUSP
Execute a Markov algorithm
Execute a system command
Exponentiation operator
Exponentiation order
Extend your language
Extensible prime generator
External sort
Extract file extension
Extreme floating point values
FASTA format
FTP
Faces from a mesh
Factorial
Factorial base numbers indexing permutations of a collection
Factorions
Factors of a Mersenne number
Factors of an integer
Farey sequence
Fast Fourier transform
Faulhaber's formula
Faulhaber's triangle
Feigenbaum constant calculation
Fermat numbers
Fibonacci heap
Fibonacci n-step number sequences
Fibonacci sequence
Fibonacci word
Fibonacci word/fractal
File extension is in extensions list
File handling
File input/output
File modification time
File size
File size distribution
Filter
Find URI in text
Find common directory path
Find duplicate files
Find first and last set bit of a long integer
Find largest left truncatable prime in a given base
Find limit of recursion
Find palindromic numbers in both binary and ternary bases
Find the intersection of a line with a plane
Find the intersection of two lines
Find the last Sunday of each month
Find the missing permutation
Finite state machine
First class environments
First perfect square in base N with N unique digits
First-class functions
First-class functions/Use numbers analogously
Five weekends
Fixed length records
FizzBuzz
Flatten a list
Flipping bits game
Flow control
Flow-control structures
Floyd's triangle
Floyd-Warshall algorithm
Forest fire
Fork
Formal power series
Formatted numeric output
Forward difference
Four bit adder
Four is magic
Four is the number of letters in the ...
Fractal tree
Fraction reduction
Fractran
Free polyominoes enumeration
French Republican calendar
Function composition
Function definition
Function frequency
Function prototype
Functional coverage tree
Functions and subroutines
Fusc sequence
GUI
GUI component interaction
GUI enabling/disabling of controls
GUI/Maximum window dimensions
Galton box animation
Game engine
Games
Gamma function
Gapful numbers
Gauss-Jordan matrix inversion
Gaussian elimination
General FizzBuzz
Generalised floating point addition
Generalised floating point multiplication
Generate Chess960 starting position
Generate lower case ASCII alphabet
Generate random chess position
Generator/Exponential
Generic swap
Geometric Primitives
Geometric Subtraction
Geometric algebra
Geometry
Get system command output
Globally replace text in several files
Go Fish
Gradient descent
Graphics algorithms
Gray code
Grayscale image
Greatest common divisor
Greatest element of a list
Greatest subsequential sum
Greed
Greyscale bars/Display
Guess the number
Guess the number/With feedback
Guess the number/With feedback (player)
HTTP
HTTPS
HTTPS/Authenticated
HTTPS/Client-authenticated
Hailstone sequence
Hamming numbers
Handle a signal
Happy numbers
Harshad or Niven series
Hash from two arrays
Hash join
Haversine formula
Hello world/Graphical
Hello world/Line printer
Hello world/Newbie
Hello world/Newline omission
Hello world/Standard error
Hello world/Text
Hello world/Web server
Here document
Heronian triangles
Hexapawn
Hickerson series of almost integers
Higher-order functions
Hilbert curve
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
Hough transform
Huffman coding
Humble numbers
Hunt The Wumpus
I before E except after C
I'm a software engineer, get me out of here
I.Q. Puzzle
IBAN
IPC via named pipe
IRC gateway
ISBN13 check digit
Identity matrix
Idiomatically determine all the characters that can be used for symbols
Idiomatically determine all the lowercase and uppercase letters
Image convolution
Image noise
Image processing
Imaginary base numbers
Implicit type conversion
Include a file
Increment a numerical string
Index finite lists of positive integers
Infinity
Inheritance/Multiple
Inheritance/Single
Initialization
Input loop
Input/Output for Lines of Text
Input/Output for Pairs of Numbers
Integer comparison
Integer overflow
Integer roots
Integer sequence
Interactive Help
Interactive programming
Internet Protocol
Intersecting Number Wheels
Introspection
Inverted index
Inverted syntax
Iterated digits squaring
Iteration
JSON
Jaro distance
Jensen's Device
Jewels and Stones
JortSort
Josephus problem
Joystick
Joystick position
Julia set
Jump anywhere
Just in time processing on a character stream
K-d tree
K-means++ clustering
Kahan summation
Kaprekar numbers
Kernighans large earthquake problem
Keyboard Input
Keyboard input/Flush the keyboard buffer
Keyboard input/Keypress check
Keyboard input/Obtain a Y or N response
Keyboard macros
Knapsack problem/0-1
Knapsack problem/Bounded
Knapsack problem/Continuous
Knapsack problem/Unbounded
Knight's tour
Knuth shuffle
Knuth's algorithm S
Knuth's power tree
Koch curve
Kolakoski sequence
Kosaraju
Kronecker product
Kronecker product based fractals
LU decomposition
LZW compression
Lah numbers
Langton's ant
Largest int from concatenated ints
Largest number divisible by its digits
Last Friday of each month
Last letter-first letter
Latin Squares in reduced form
Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique
Launch rocket with countdown and acceleration in stdout
Law of cosines - triples
Leap year
Least common multiple
Left factorials
Leonardo numbers
Letter frequency
Levenshtein distance
Levenshtein distance/Alignment
Linear congruential generator
Linux CPU utilization
List comprehensions
List rooted trees
Literals/Floating point
Literals/Integer
Literals/String
Logic
Logical operations
Long multiplication
Long primes
Longest Common Substring
Longest common prefix
Longest common subsequence
Longest increasing subsequence
Longest string challenge
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/Increment loop index within loop body
Loops/Infinite
Loops/N plus one half
Loops/Nested
Loops/While
Loops/Wrong ranges
Loops/with multiple ranges
Lucas-Lehmer test
Lucky and even lucky numbers
Ludic numbers
Luhn test of credit card numbers
Lychrel numbers
MAC Vendor Lookup
MD4
MD5
MD5/Implementation
Machine code
Mad Libs
Magic 8-Ball
Magic squares of doubly even order
Magic squares of odd order
Magic squares of singly even order
Main step of GOST 28147-89
Make a backup file
Make directory path
Man or boy test
Mandelbrot set
Map range
Markov chain text generator
Mastermind
Mathematical operations
Mathematics
Matrix Digital Rain
Matrix chain multiplication
Matrix multiplication
Matrix transposition
Matrix-exponentiation operator
Maximum triangle path sum
Mayan calendar
Mayan numerals
Maze generation
Maze solving
McNuggets Problem
Median filter
Memory allocation
Memory layout of a data structure
Memory management
Menu
Mersenne primes
Metallic ratios
Metaprogramming
Metered concurrency
Metronome
Mian-Chowla sequence
Middle three digits
Miller–Rabin primality test
Mind boggling card trick
Minesweeper game
Minimal steps down to 1
Modular arithmetic
Modular exponentiation
Modular inverse
Modulinos
Monads/List monad
Monads/Maybe monad
Monads/Writer monad
Monte Carlo methods
Montgomery reduction
Monty Hall problem
Morpion solitaire
Morse code
Most frequent k chars distance
Mouse position
Move-to-front algorithm
Multi-dimensional array
Multidimensional Newton-Raphson method
Multifactorial
Multiline shebang
Multiple distinct objects
Multiple regression
Multiplication tables
Multiplicative order
Multisplit
Munchausen numbers
Munching squares
Musical scale
Mutual recursion
N'th
N-body problem
N-queens problem
N-smooth numbers
NYSIIS
Named parameters
Names to numbers
Naming conventions
Narcissist
Narcissistic decimal number
Native shebang
Natural sorting
Nautical bell
Negative base numbers
Nested function
Nested templated data
Networking and Web Interaction
Nim Game
Non parametric generators
Non-continuous subsequences
Non-decimal radices/Convert
Non-decimal radices/Input
Non-decimal radices/Output
Nonoblock
Nonogram solver
Nth root
Null object
Number names
Number reversal game
Numeric error propagation
Numeric separator syntax
Numerical and alphabetical suffixes
Numerical integration
Numerical integration/Adaptive Simpson's method
Numerical integration/Gauss-Legendre Quadrature
OLE Automation
Object oriented
Object serialization
Odd word problem
Old Russian measure of length
Old lady swallowed a fly
One of n lines in a file
One-dimensional cellular automata
One-time pad
OpenGL
OpenGL Pixel Shader
OpenGL/Utah Teapot
OpenWebNet Password
Operator precedence
Optional parameters
Orbital elements
Order disjoint list items
Order two numerical lists
Ordered Partitions
Ordered words
P-value correction
Palindrome detection
Palindromic gapful numbers
Pangram checker
Paraffins
Parallel Brute Force
Parallel calculations
Parametric polymorphism
Parametrized SQL statement
Parse EBNF
Parse an IP Address
Parse command-line arguments
Parsing/RPN calculator algorithm
Parsing/RPN to infix conversion
Parsing/Shunting-yard algorithm
Partial function application
Particle Swarm Optimization
Partition an integer X into N primes
Pascal matrix generation
Pascal's triangle
Pascal's triangle/Puzzle
Password generator
Pathological floating point problems
Pattern matching
Peaceful chess queen armies
Peano curve
Pell's equation
Penney's game
Penrose tiling
Pentagram
Pentomino tiling
Percentage difference between images
Perceptron
Percolation/Bond percolation
Percolation/Mean cluster density
Percolation/Mean run density
Percolation/Site percolation
Perfect numbers
Perfect shuffle
Perfect totient numbers
Perlin noise
Permutation test
Permutations
Permutations by swapping
Permutations with repetitions
Permutations with some identical elements
Permutations/Derangements
Permutations/Rank of a permutation
Pernicious numbers
Phrase reversals
Pi
Pick random element
Pierpont primes
Pig the dice game
Pig the dice game/Player
Pinstripe/Display
Pinstripe/Printer
Plasma effect
Play recorded sounds
Playfair cipher
Playing cards
Plot coordinate pairs
Pointers and references
Pointing devices
Poker hand analyser
Polymorphic copy
Polymorphism
Polynomial long division
Polynomial regression
Polynomial synthetic division
Polyspiral
Population count
Power set
Pragmatic directives
Price fraction
Primality by trial division
Prime conspiracy
Prime decomposition
Primes - allocate descendants to their ancestors
Primorial numbers
Print debugging statement
Priority queue
Probabilistic choice
Problem of Apollonius
Process SMIL directives in XML data
Program name
Program termination
Programming environment operations
Programming language concepts
Proof
Proper divisors
Puzzles
Pythagoras tree
Pythagorean quadruples
Pythagorean triples
QR decomposition
Quaternion type
Queue/Definition
Queue/Usage
Quickselect algorithm
Quine
RCRPG
RIPEMD-160
RPG Attributes Generator
RSA code
Railway circuit
Ramanujan's constant
Ramer-Douglas-Peucker line simplification
Ramsey's theorem
Random Latin Squares
Random number generator (device)
Random number generator (included)
Random numbers
Randomness
Range consolidation
Range expansion
Range extraction
Ranking methods
Rare numbers
Raster bars
Rate counter
Ray-casting algorithm
Read a configuration file
Read a file character by character/UTF8
Read a file line by line
Read a specific line from a file
Read entire file
Readline interface
Real constants and functions
Recaman's sequence
Record sound
Recursion
Recursive descent parser generator
Reduced row echelon form
Reflection/Get source
Reflection/List methods
Reflection/List properties
Regular expressions
Remote agent/Agent interface
Remote agent/Agent logic
Remote agent/Simulation
Remove duplicate elements
Remove lines from a file
Rename a file
Rendezvous
Rep-string
Repeat
Repeat a string
Resistance Calculator
Resistance Network Calculator
Resistor mesh
Respond to an unknown method call
Retrieve and search chat history
Return multiple values
Reverse a string
Reverse the gender of a string
Reverse words in a string
Robots
Rock-paper-scissors
Roman numerals/Decode
Roman numerals/Encode
Roots of a function
Roots of a quadratic function
Roots of unity
Rosetta Code related
Rosetta Code/Count examples
Rosetta Code/Find bare lang tags
Rosetta Code/Find unimplemented tasks
Rosetta Code/Fix code tags
Rosetta Code/List authors of task descriptions
Rosetta Code/Rank languages by number of users
Rosetta Code/Rank languages by popularity
Rosetta Code/Run examples
Rosetta Code/Tasks sorted by average lines of code
Rosetta Code/Tasks without examples
Rot-13
Routing algorithms
Run as a daemon or service
Run-length encoding
Runge-Kutta method
Runtime evaluation
Runtime evaluation/In an environment
S-Expressions
SEDOLs
SHA-1
SHA-256
SOAP
SQL-based authentication
Safe addition
Safe mode
Safe primes and unsafe primes
Sailors, coconuts and a monkey problem
Same Fringe
Sattolo cycle
Sciences
Scope
Scope modifiers
Scope/Function names and labels
Screen capture
Search a list
Search a list of records
Secure temporary file
Selective File Copy
Self-describing numbers
Self-hosting compiler
Self-referential sequence
Semiprime
Semordnilap
Send an unknown method call
Send email
Separate the house number from the street name
Sequence of non-squares
Sequence of primes by trial division
Sequence of primorial primes
Sequence: nth number with exactly n divisors
Sequence: smallest number greater than previous term with exactly n divisors
Sequence: smallest number with exactly n divisors
Set
Set consolidation
Set of real numbers
Set puzzle
Seven-sided dice from five-sided dice
Sexy primes
Shell one-liner
Shoelace formula for polygonal area
Short-circuit evaluation
Shortest common supersequence
Show Ascii table
Show the epoch
Sierpinski carpet
Sierpinski pentagon
Sierpinski triangle
Sierpinski triangle/Graphical
Sieve of Eratosthenes
Signal handling
Simple database
Simple windowed application
Simulate input/Keyboard
Simulate input/Mouse
Simulated annealing
Sine wave
Singleton
Singly-linked list/Element definition
Singly-linked list/Element insertion
Singly-linked list/Element removal
Singly-linked list/Traversal
Sleep
Smarandache prime-digital sequence
Smith numbers
Snake
Snake And Ladder
Sockets
Software Engineering
Sokoban
Solve a Hidato puzzle
Solve a Holy Knight's tour
Solve a Hopido puzzle
Solve a Numbrix puzzle
Solve a Rubik's Cube
Solve the no connection puzzle
Solving coin problems
Sort a list of object identifiers
Sort an array of composite structures
Sort an integer array
Sort disjoint sublist
Sort numbers lexicographically
Sort stability
Sort three variables
Sort using a custom comparator
Sorting
Sorting Algorithms/Circle Sort
Sorting algorithms/Bead sort
Sorting algorithms/Bogosort
Sorting algorithms/Bubble sort
Sorting algorithms/Cocktail sort
Sorting algorithms/Comb sort
Sorting algorithms/Counting sort
Sorting algorithms/Cycle sort
Sorting algorithms/Gnome sort
Sorting algorithms/Heapsort
Sorting algorithms/Insertion sort
Sorting algorithms/Merge sort
Sorting algorithms/Pancake sort
Sorting algorithms/Patience sort
Sorting algorithms/Permutation sort
Sorting algorithms/Quicksort
Sorting algorithms/Radix sort
Sorting algorithms/Selection sort
Sorting algorithms/Shell sort
Sorting algorithms/Sleep sort
Sorting algorithms/Stooge sort
Sorting algorithms/Strand sort
Sorting algorithms/Tree sort on a linked list
Soundex
Sparkline in unicode
Special characters
Special variables
Speech Recognition
Speech synthesis
Spelling of ordinal numbers
Spinning rod animation/Text
Spiral matrix
Split a character string based on change of character
Spoof game
Square but not cube
Square-free integers
Stable marriage problem
Stack
Stack traces
Stair-climbing puzzle
Start from a main routine
Starting a web browser
State name puzzle
Statistics/Basic
Statistics/Normal distribution
Stem-and-leaf plot
Stern-Brocot sequence
Stirling numbers of the first kind
Stirling numbers of the second kind
Straddling checkerboard
Stream Merge
Streams
String append
String case
String comparison
String concatenation
String interpolation (included)
String length
String manipulation
String matching
String prepend
Strip a set of characters from a string
Strip block comments
Strip comments from a string
Strip control codes and extended characters from a string
Strip whitespace from a string/Top and tail
Strong and weak primes
Subleq
Subset sum problem
Substitution Cipher
Substring
Substring/Top and tail
Subtractive generator
Successive prime differences
Sudoku
Suffix tree
Suffixation of decimal numbers
Sum and Product Puzzle
Sum and product of an array
Sum data type
Sum digits of an integer
Sum multiples of 3 and 5
Sum of a series
Sum of squares
Sum to 100
Sunflower fractal
Super-d numbers
Superellipse
Superpermutation minimisation
Sutherland-Hodgman polygon clipping
Symmetric difference
Synchronous concurrency
System time
Table creation
Table creation/Postal addresses
Take notes on the command line
Talk:FizzBuzz
Tamagotchi emulator
Tarjan
Taxicab numbers
Teacup rim text
Temperature conversion
Temporal media
Terminal control
Terminal control/Clear the screen
Terminal control/Coloured text
Terminal control/Cursor movement
Terminal control/Cursor positioning
Terminal control/Dimensions
Terminal control/Display an extended character
Terminal control/Hiding the cursor
Terminal control/Inverse video
Terminal control/Positional read
Terminal control/Preserve screen
Terminal control/Restricted width positional input/No wrapping
Terminal control/Restricted width positional input/With wrapping
Terminal control/Ringing the terminal bell
Terminal control/Unicode output
Ternary logic
Test a function
Test integerness
Tetris
Text between
Text processing
Text processing/1
Text processing/2
Text processing/Max licenses in use
Text to HTML
Textonyms
The ISAAC Cipher
The Name Game
The Twelve Days of Christmas
Thiele's interpolation formula
Thue-Morse
Tic-tac-toe
Time a function
Time-based One-time Password Algorithm
Tokenize a string
Tokenize a string with escaping
Tonelli-Shanks algorithm
Top rank per group
Topic variable
Topological sort
Topological sort/Extracted top item
Topswops
Total circles area
Totient function
Towers of Hanoi
Trabb Pardo–Knuth algorithm
Transportation problem
Tree datastructures
Tree traversal
Trigonometric functions
Truncatable primes
Truncate a file
Truth table
Twelve statements
Two Sum
Type detection
UPC
URL decoding
URL encoding
URL parser
UTF-8 encode and decode
Ukkonen’s Suffix Tree Construction
Ulam spiral (for primes)
Unbias a random generator
Undefined values
Unicode polynomial equation
Unicode strings
Unicode variable names
Unit testing
Universal Turing machine
Unix/ls
Unprimeable numbers
Untrusted environment
Update a configuration file
Use another language to call a function
User defined pipe and redirection operators
User input/Graphical
User input/Text
Using a Speech engine to highlight words
Using the Meetup.com API
VList
Validate International Securities Identification Number
Vampire number
Van Eck sequence
Van der Corput sequence
Variable size/Get
Variable size/Set
Variable-length quantity
Variables
Variadic function
Vector
Vector products
Verify distribution uniformity/Chi-squared test
Verify distribution uniformity/Naive
Vibrating rectangles
Video display modes
Vigenère cipher
Vigenère cipher/Cryptanalysis
Visualize a tree
Vogel's approximation method
Voronoi diagram
Walk a directory/Non-recursively
Walk a directory/Recursively
Water collected between towers
Waveform analysis/Doh ray me
Waveform analysis/Top and tail
Weather Routing
Web scraping
Weird numbers
Welch's t-test
Window creation
Window creation/X11
Window management
Wireworld
Word break problem
Word frequency
Word search
Word wrap
World Cup group stage
Write entire file
Write float arrays to a text file
Write language name in 3D ASCII
Write to Windows event log
XML
XML Validation
XML/DOM serialization
XML/Input
XML/Output
XML/XPath
Xiaolin Wu's line algorithm
Y combinator
Yahoo! search interface
Yin and yang
Zebra puzzle
Zeckendorf arithmetic
Zeckendorf number representation
Zero to the zero power
Zhang-Suen thinning algorithm
Zig-zag matrix
Zumkeller numbers

 

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