Nim

Nim (formerly known as Nimrod) is a general purpose, high-level, system programming, statically typed imperative compiled programming language that is developed by Andreas Rumpf.

There is a lot of focus on portability and efficiency. The language compiles to C, C++ and JavaScript. Nim is actively being developed. The language has extensive documentation, and a very good tutorial.

You can ask for help in the chat on Freenode in the #nim channel, on Gitter/Nim, or in the forum.

Tasks

• 100 doors
• 15 Puzzle Game
• 2048
• 24 game
• 24 game/Solve
• 4-rings or 4-squares puzzle
• 9 billion names of God the integer
• A+B
• ABC Problem
• Abstract type
• Abundant, deficient and perfect number classifications
• Accumulator factory
• Ackermann function
• Address of a variable
• Align columns
• Almost prime
• Amicable pairs
• Anagrams
• Angle difference between two bearings
• Anonymous recursion
• Anti-primes
• Apply a callback to an array
• Arbitrary-precision integers (included)
• Arithmetic evaluation
• Arithmetic-geometric mean
• Arithmetic/Complex
• Arithmetic/Integer
• Arithmetic/Rational
• Array concatenation
• Array length
• Arrays
• Assertions
• Associative array/Creation
• Associative array/Iteration
• Attractive numbers
• 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
• Balanced brackets
• Barnsley fern
• Best shuffle
• Binary digits
• Binary search
• Binary strings
• Bitcoin/address validation
• Bitcoin/public point to address
• Bitmap
• Bitmap/Read a PPM file
• Bitwise IO
• Bitwise operations
• Boolean values
• Box the compass
• Break OO privacy
• Bresenham's Line Algorithm
• Bulls and cows
• CRC-32
• CSV data manipulation
• CSV to HTML translation
• CUSIP
• Caesar cipher
• Calculating the value of e
• Call a foreign-language function
• Call a function
• Call a function in a shared library
• Call an object method
• Case-sensitivity of identifiers
• Casting out nines
• Catalan numbers
• Catalan numbers/Pascal's triangle
• Catamorphism
• Chaos game
• Character codes
• Chat server
• Check that file exists
• Chemical Calculator
• Chinese remainder theorem
• Cholesky decomposition
• Circles of given radius through two points
• Classes
• Closures/Value capture
• Collections
• Color of a screen pixel
• Combinations
• Combinations and permutations
• Combinations with repetitions
• Comma quibbling
• Command-line arguments
• Comments
• Compile-time calculation
• Compiler/lexical analyzer
• Compound data type
• Concurrent computing
• Conditional structures
• Constrained genericity
• Constrained random points on a circle
• Continued fraction
• Copy a string
• Count in factors
• Count in octal
• Count occurrences of a substring
• Count the coins
• 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
• Cuban primes
• Cumulative standard deviation
• Currying
• DNS query
• Date format
• Date manipulation
• Day of the week
• Deconvolution/1D
• Deepcopy
• Define a primitive data type
• Delete a file
• Detect division by zero
• Determinant and permanent
• Determine if a string is numeric
• Determine if only one instance is running
• Digital root
• Digital root/Multiplicative digital root
• Dining philosophers
• Distributed programming
• Documentation
• Dot product
• Doubly-linked list/Definition
• Doubly-linked list/Element definition
• Doubly-linked list/Element insertion
• Doubly-linked list/Traversal
• Draw a clock
• Draw a cuboid
• Draw a pixel
• Draw a sphere
• Dynamic variable names
• Echo server
• Empty directory
• Empty program
• Empty string
• Enforced immutability
• Entropy
• Enumerations
• Environment variables
• Equilibrium index
• Ethiopian multiplication
• Euler method
• 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 Brainfuck
• Execute HQ9+
• Execute a system command
• Exponentiation operator
• Extend your language
• Extensible prime generator
• Extreme floating point values
• FASTA format
• Factorial
• Factors of a Mersenne number
• Factors of an integer
• Farey sequence
• Fast Fourier transform
• Fibonacci n-step number sequences
• Fibonacci sequence
• Filter
• Find common directory path
• Find limit of recursion
• Find the last Sunday of each month
• Find the missing permutation
• First-class functions
• Five weekends
• FizzBuzz
• Flatten a list
• Flow-control structures
• Floyd's triangle
• Forest fire
• Fork
• Formatted numeric output
• Forward difference
• Four bit adder
• Function composition
• Function definition
• Function prototype
• GUI component interaction
• GUI enabling/disabling of controls
• GUI/Maximum window dimensions
• Gamma function
• General FizzBuzz
• Generate lower case ASCII alphabet
• Generator/Exponential
• Generic swap
• Get system command output
• Globally replace text in several files
• Gray code
• Greatest common divisor
• Greatest element of a list
• Greatest subsequential sum
• Guess the number
• Guess the number/With feedback
• Guess the number/With feedback (player)
• HTTP
• HTTPS
• Hamming numbers
• 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
• Hello world/Web server
• Here document
• Heronian triangles
• Higher-order functions
• Hofstadter Figure-Figure sequences
• Hofstadter Q sequence
• Hofstadter-Conway $10,000 sequence
• Horizontal sundial calculations
• Horner's rule for polynomial evaluation
• Host introspection
• Hostname
• Huffman coding
• IBAN
• Identity matrix
• Image noise
• Include a file
• Increment a numerical string
• Infinity
• Inheritance/Single
• Input loop
• Integer comparison
• Integer overflow
• Integer sequence
• Interactive programming
• Introspection
• Inverted syntax
• JSON
• Jensen's Device
• Josephus problem
• Jump anywhere
• Kaprekar numbers
• Keyboard input/Flush the keyboard buffer
• Knuth shuffle
• Koch curve
• LZW compression
• Langton's ant
• Largest int from concatenated ints
• Last Friday of each month
• Least common multiple
• Left factorials
• Leonardo numbers
• Letter frequency
• Levenshtein distance
• Linear congruential generator
• List comprehensions
• Literals/Floating point
• Literals/Integer
• Literals/String
• Logical operations
• Long multiplication
• Longest common subsequence
• 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
• MAC Vendor Lookup
• MD4
• MD5
• MD5/Implementation
• Machine code
• Mad Libs
• Magic squares of odd order
• Main step of GOST 28147-89
• Man or boy test
• Mandelbrot set
• Map range
• Matrix multiplication
• Matrix transposition
• Maximum triangle path sum
• Maze generation
• Memory allocation
• Memory layout of a data structure
• Menu
• Metaprogramming
• Middle three digits
• Miller–Rabin primality test
• Modular exponentiation
• Modular inverse
• Monte Carlo methods
• Monty Hall problem
• Multifactorial
• Multiple distinct objects
• Multiplication tables
• Multisplit
• Munchausen numbers
• Mutual recursion
• N-queens problem
• Named parameters
• Nim Game
• Non-continuous subsequences
• Non-decimal radices/Convert
• Non-decimal radices/Input
• Non-decimal radices/Output
• Nth root
• Null object
• Number names
• Number reversal game
• Numeric error propagation
• Numerical integration
• Numerical integration/Gauss-Legendre Quadrature
• Odd word problem
• Old lady swallowed a fly
• One of n lines in a file
• One-dimensional cellular automata
• OpenGL
• Operator precedence
• Optional parameters
• Order two numerical lists
• Ordered words
• Palindrome detection
• Pangram checker
• Paraffins
• Parametric polymorphism
• Parse command-line arguments
• Parsing/RPN calculator algorithm
• Parsing/RPN to infix conversion
• Parsing/Shunting-yard algorithm
• Pascal's triangle
• Pascal's triangle/Puzzle
• Perfect numbers
• Permutations
• Permutations by swapping
• Pernicious numbers
• Pi
• Pick random element
• Playing cards
• Pointers and references
• Polymorphic copy
• Polymorphism
• Power set
• Price fraction
• Primality by trial division
• Prime decomposition
• Priority queue
• Probabilistic choice
• Problem of Apollonius
• Program name
• Program termination
• Pythagorean quadruples
• Pythagorean triples
• Queue/Definition
• Queue/Usage
• Quickselect algorithm
• Quine
• RIPEMD-160
• Ramer-Douglas-Peucker line simplification
• 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
• Record sound
• Regular expressions
• Remove duplicate elements
• Rename a file
• Rep-string
• Repeat a string
• Resistance Calculator
• Return multiple values
• Reverse a string
• Reverse words in a string
• Roman numerals/Decode
• Roman numerals/Encode
• Roots of unity
• Rosetta Code/Count examples
• Rosetta Code/Find unimplemented tasks
• Rot-13
• Run-length encoding
• Runge-Kutta method
• S-Expressions
• SEDOLs
• SHA-1
• SHA-256
• Safe addition
• Sattolo cycle
• Scope modifiers
• Search a list
• Self-describing numbers
• Semiprime
• Semordnilap
• Send email
• Sequence of non-squares
• Set
• Shell one-liner
• Short-circuit evaluation
• Show Ascii table
• Show the epoch
• Sierpinski carpet
• Sierpinski triangle
• Sieve of Eratosthenes
• Simple windowed application
• Simulated annealing
• Singleton
• Singly-linked list/Element definition
• Singly-linked list/Element insertion
• Singly-linked list/Traversal
• Sleep
• Sockets
• Solve a Hidato puzzle
• Sort an array of composite structures
• Sort an integer array
• Sort disjoint sublist
• Sort stability
• Sort using a custom comparator
• 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/Permutation sort
• Sorting algorithms/Quicksort
• Sorting algorithms/Selection sort
• Sorting algorithms/Shell sort
• Sorting algorithms/Sleep sort
• Sorting algorithms/Stooge sort
• Sorting algorithms/Strand sort
• Sparkline in unicode
• Special characters
• Spiral matrix
• Split a character string based on change of character
• Square but not cube
• Stack
• Stack traces
• Stair-climbing puzzle
• Statistics/Basic
• Stem-and-leaf plot
• String append
• String case
• String comparison
• String concatenation
• String interpolation (included)
• String length
• 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
• 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
• Sum to 100
• Symmetric difference
• Synchronous concurrency
• System time
• Table creation/Postal addresses
• Take notes on the command line
• Temperature conversion
• Terminal control/Clear the screen
• Terminal control/Coloured text
• Terminal control/Cursor positioning
• Terminal control/Dimensions
• Terminal control/Display an extended character
• Terminal control/Hiding the cursor
• Terminal control/Inverse video
• Terminal control/Preserve screen
• Terminal control/Ringing the terminal bell
• Terminal control/Unicode output
• Ternary logic
• Test a function
• Text processing/1
• Text processing/2
• Text processing/Max licenses in use
• The Twelve Days of Christmas
• Thiele's interpolation formula
• Time a function
• Tokenize a string
• Tonelli-Shanks algorithm
• Top rank per group
• Total circles area
• Totient function
• Trabb Pardo–Knuth algorithm
• Tree traversal
• Trigonometric functions
• Truncatable primes
• Truncate a file
• Two Sum
• URL decoding
• URL encoding
• URL parser
• Unbias a random generator
• Unicode strings
• Unicode variable names
• Universal Turing machine
• Unix/ls
• Use another language to call a function
• Variable size/Get
• Variable size/Set
• Variable-length quantity
• Variables
• Variadic function
• Vector products
• Vigenère cipher
• Visualize a tree
• Walk a directory/Non-recursively
• Walk a directory/Recursively
• Web scraping
• Window creation
• Window management
• Wireworld
• Word wrap
• Write entire file
• Write float arrays to a text file
• XML/DOM serialization
• XML/Input
• XML/Output
• XML/XPath
• Zeckendorf number representation
• Zero to the zero power
• Zig-zag matrix