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Swift is a general purpose, multi-paradigm, systems programming language developed by Apple Inc. originally for Apple platforms. Linux support was added when open source Swift was released. It runs on the Objective-C runtime on Darwin and is mainly used with the Cocoa API. It was announced at WWDC 2014.

Tasks

• 24 game
• 24 game/Solve
• 9 billion names of God the integer
• A+B
• ABC Problem
• AKS test for primes
• Abundant, deficient and perfect number classifications
• Accumulator factory
• Ackermann function
• Active object
• Add a variable to a class instance at runtime
• Address of a variable
• Amicable pairs
• Anagrams
• Angle difference between two bearings
• Anonymous recursion
• Apply a callback to an array
• Arithmetic-geometric mean
• Arithmetic/Complex
• Arithmetic/Integer
• Array concatenation
• Array length
• Arrays
• Assertions
• Associative array/Creation
• Associative array/Iteration
• Atomic updates
• Averages/Arithmetic mean
• Averages/Mode
• Babbage problem
• Balanced brackets
• Barnsley fern
• Benford's law
• Binary digits
• Binary search
• Bitwise operations
• Boolean values
• Break OO privacy
• Bulls and cows
• CRC-32
• CUSIP
• Caesar cipher
• Calculating the value of e
• Call a foreign-language function
• Call a function
• Call an object method
• Cartesian product of two or more lists
• Case-sensitivity of identifiers
• Catalan numbers
• Catamorphism
• Character codes
• Chinese remainder theorem
• Cholesky decomposition
• Church Numerals
• Circles of given radius through two points
• Classes
• Closest-pair problem
• Closures/Value capture
• Combinations
• Combinations and permutations
• Combinations with repetitions
• Comma quibbling
• Command-line arguments
• Commatizing numbers
• Comments
• Compound data type
• Concurrent computing
• Constrained genericity
• Copy a string
• Count in octal
• Count the coins
• Create a two-dimensional array at runtime
• Cumulative standard deviation
• Currency
• Currying
• Date format
• Day of the week
• Delegates
• Department Numbers
• Determine if a string is numeric
• Determine if only one instance is running
• Documentation
• Dot product
• Draw a sphere
• Empty program
• Empty string
• Enforced immutability
• Entropy
• Enumerations
• Ethiopian multiplication
• Even or odd
• Evolutionary algorithm
• Exceptions
• Exceptions/Catch an exception thrown in a nested call
• Execute Brainfuck
• Execute a Markov algorithm
• Exponentiation operator
• Extensible prime generator
• Extreme floating point values
• Factorial
• Factors of an integer
• Farey sequence
• Fibonacci sequence
• Filter
• Find common directory path
• Find largest left truncatable prime in a given base
• Find limit of recursion
• Find the intersection of two lines
• Find the last Sunday of each month
• First-class functions
• FizzBuzz
• Flatten a list
• Flipping bits game
• Forward difference
• Fractal tree
• Function composition
• Function definition
• Generate lower case ASCII alphabet
• Generator/Exponential
• Generic swap
• Get system command output
• Greatest common divisor
• Greatest element of a list
• Guess the number
• Guess the number/With feedback
• Guess the number/With feedback (player)
• HTTP
• HTTPS
• Hailstone sequence
• Handle a signal
• Happy numbers
• Harshad or Niven series
• Hash from two arrays
• Haversine formula
• Hello world!
• Hello world/Graphical
• Hello world/Line printer
• Hello world/Newbie
• Hello world/Newline omission
• Hello world/Standard error
• Hello world/Text
• Heronian triangles
• Higher-order functions
• History variables
• Hofstadter-Conway $10,000 sequence
• Horner's rule for polynomial evaluation
• Hostname
• Huffman coding
• I before E except after C
• Identity matrix
• Increment a numerical string
• Infinity
• Inheritance/Multiple
• Inheritance/Single
• Integer comparison
• Integer overflow
• Integer sequence
• Inverted syntax
• Iterated digits squaring
• JSON
• Jaro distance
• Jensen's Device
• Jewels and Stones
• JortSort
• Josephus problem
• Kernighans large earthquake problem
• Knapsack problem/0-1
• Knight's tour
• Knuth shuffle
• Knuth's algorithm S
• Kosaraju
• LZW compression
• Langton's ant
• Last Friday of each month
• Leap year
• Least common multiple
• Letter frequency
• Levenshtein distance
• Linear congruential generator
• Literals/Floating point
• Literals/Integer
• Literals/String
• Logical operations
• Longest Common Substring
• Longest common subsequence
• Longest increasing 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
• Lucky and even lucky numbers
• Luhn test of credit card numbers
• MD5/Implementation
• Machine code
• Magic squares of odd order
• Man or boy test
• Map range
• Markov chain text generator
• Matrix multiplication
• Matrix transposition
• Maze generation
• McNuggets Problem
• Mian-Chowla sequence
• Middle three digits
• Miller–Rabin primality test
• Modulinos
• Monte Carlo methods
• Monty Hall problem
• Move-to-front algorithm
• Multifactorial
• Multiple distinct objects
• Munchausen numbers
• Mutual recursion
• N'th
• N-body problem
• N-queens problem
• Named parameters
• Narcissist
• Native shebang
• Nested function
• Non-decimal radices/Convert
• Null object
• Number names
• Numerical integration
• One of n lines in a file
• OpenWebNet Password
• Optional parameters
• Orbital elements
• Order disjoint list items
• Order two numerical lists
• Ordered words
• Palindrome detection
• Pangram checker
• Parametric polymorphism
• Parsing/RPN calculator algorithm
• Parsing/Shunting-yard algorithm
• Pascal's triangle
• Password generator
• Pattern matching
• Percentage difference between images
• Percolation/Bond percolation
• Perfect numbers
• Perfect totient numbers
• Permutations
• Phrase reversals
• Pick random element
• Play recorded sounds
• Playing cards
• Polymorphic copy
• Polymorphism
• Population count
• Power set
• Primality by trial division
• Prime decomposition
• Priority queue
• Problem of Apollonius
• Proper divisors
• Pythagorean quadruples
• Pythagorean triples
• Quaternion type
• Quickselect algorithm
• Quine
• RIPEMD-160
• Range extraction
• Real constants and functions
• Reduced row echelon form
• Regular expressions
• Remove duplicate elements
• Rep-string
• Repeat
• Repeat a string
• Return multiple values
• Reverse a string
• Reverse words in a string
• Rock-paper-scissors
• Roman numerals/Decode
• Roman numerals/Encode
• Rot-13
• Run-length encoding
• Runge-Kutta method
• Safe addition
• Sattolo cycle
• Search a list
• Semiprime
• Sequence of primes by trial division
• Set
• Shoelace formula for polygonal area
• Short-circuit evaluation
• Sierpinski carpet
• Sierpinski triangle
• Sieve of Eratosthenes
• Singleton
• Singly-linked list/Element definition
• Sleep
• Sort a list of object identifiers
• Sort an integer array
• Sort disjoint sublist
• Sort using a custom comparator
• Sorting algorithms/Bogosort
• Sorting algorithms/Bubble sort
• Sorting algorithms/Cocktail sort
• Sorting algorithms/Comb sort
• Sorting algorithms/Heapsort
• Sorting algorithms/Insertion sort
• Sorting algorithms/Merge sort
• Sorting algorithms/Pancake sort
• Sorting algorithms/Quicksort
• Sorting algorithms/Selection sort
• Sorting algorithms/Shell sort
• Sorting algorithms/Sleep sort
• Sorting algorithms/Stooge sort
• Speech synthesis
• Stable marriage problem
• Stack
• Stair-climbing puzzle
• Stern-Brocot sequence
• String append
• String case
• String concatenation
• String interpolation (included)
• String length
• String matching
• String prepend
• Strip a set of characters from a string
• Subleq
• Substring
• Substring/Top and tail
• Sudoku
• Sum and product of an array
• Sum digits of an integer
• Sum multiples of 3 and 5
• Sum of a series
• Sum of squares
• Symmetric difference
• Synchronous concurrency
• System time
• Take notes on the command line
• Temperature conversion
• Test a function
• Text between
• The Twelve Days of Christmas
• Tic-tac-toe
• Tokenize a string
• Top rank per group
• Trabb Pardo–Knuth algorithm
• Twelve statements
• URL decoding
• UTF-8 encode and decode
• Unicode variable names
• Vampire number
• Van der Corput sequence
• Variable size/Get
• Variables
• Variadic function
• Vigenère cipher
• Walk a directory/Recursively
• Xiaolin Wu's line algorithm
• Y combinator
• Zero to the zero power