Ada

Ada is a structured, statically typed, imperative programming language developed by the U.S. Department of Defense. Known for its strong typing, error checking, and reliability features, Ada is commonly used in safety-critical systems such as avionics, defense, and transportation systems.

Tasks

• 100 doors
• 15 Puzzle Game
• 2048
• 24 game
• A+B
• ABC Problem
• Abstract type
• Abundant odd numbers
• 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
• Align columns
• Almost prime
• Amicable pairs
• Anagrams
• Anagrams/Deranged anagrams
• Angle difference between two bearings
• Animate a pendulum
• Animation
• Anonymous recursion
• Anti-primes
• Apply a callback to an array
• Arbitrary-precision integers (included)
• Arena storage pool
• Arithmetic evaluation
• Arithmetic-geometric mean
• Arithmetic/Complex
• Arithmetic/Integer
• Arithmetic/Rational
• Array concatenation
• Array length
• Arrays
• Assertions
• Associative array/Creation
• Associative array/Iteration
• Atomic updates
• Average loop length
• Averages/Arithmetic mean
• Averages/Mean angle
• Averages/Median
• Averages/Pythagorean means
• Averages/Root mean square
• Averages/Simple moving average
• Babbage problem
• Balanced brackets
• Balanced ternary
• Benford's law
• Bernoulli numbers
• Best shuffle
• Binary digits
• Binary search
• Binary strings
• Birthday problem
• Bitcoin/address validation
• Bitmap
• Bitmap/Bézier curves/Cubic
• Bitmap/Bézier curves/Quadratic
• Bitmap/Flood fill
• Bitmap/Histogram
• Bitmap/Midpoint circle algorithm
• Bitmap/Read a PPM file
• Bitmap/Write a PPM file
• Bitwise IO
• Bitwise operations
• Boolean values
• Box the compass
• Break OO privacy
• Bresenham's Line Algorithm
• Bulls and cows
• Bulls and cows/Player
• CRC-32
• CSV data manipulation
• CSV to HTML translation
• CUSIP
• Caesar cipher
• Calculating the value of e
• Calendar
• Call a foreign-language function
• Call a function
• Call a function in a shared library
• Call an object method
• Carmichael 3 strong pseudoprimes
• Case-sensitivity of identifiers
• Catalan numbers
• Catalan numbers/Pascal's triangle
• Catamorphism
• Character codes
• Chat server
• Check input device is a terminal
• Check output device is a terminal
• Check that file exists
• Checkpoint synchronization
• Chinese remainder theorem
• Cholesky decomposition
• Classes
• Closest-pair problem
• Closures/Value capture
• Collections
• Combinations
• Combinations with repetitions
• Comma quibbling
• Command-line arguments
• Comments
• Compare a list of strings
• Compile-time calculation
• Compound data type
• Concurrent computing
• Conditional structures
• Conjugate transpose
• Constrained genericity
• Constrained random points on a circle
• Continued fraction
• Convert decimal number to rational
• Convert seconds to compound duration
• Copy a string
• Count in factors
• Count in octal
• Count occurrences of a substring
• Count the coins
• Create a file
• Create a two-dimensional array at runtime
• Create an HTML table
• Cumulative standard deviation
• DNS query
• Date format
• Date manipulation
• Day of the week
• Decision tables
• 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
• Determine if two triangles overlap
• Digital root
• Digital root/Multiplicative digital root
• Dijkstra's algorithm
• Dinesman's multiple-dwelling problem
• Dining philosophers
• Discordian date
• 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 cuboid
• Draw a sphere
• Dutch national flag problem
• Echo server
• Egyptian division
• Element-wise operations
• Elementary cellular automaton
• Emirp primes
• 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 SNUSP
• Execute a Markov algorithm
• Execute a system command
• Exponentiation operator
• Extensible prime generator
• Extreme floating point values
• FASTA format
• Factorial
• Factors of a Mersenne number
• Factors of an integer
• Fast Fourier transform
• Fibonacci n-step number sequences
• Fibonacci sequence
• Fibonacci word
• Filter
• Find common directory path
• Find limit of recursion
• Find palindromic numbers in both binary and ternary bases
• Find the intersection of two lines
• Find the last Sunday of each month
• Find the missing permutation
• First-class functions
• First-class functions/Use numbers analogously
• Five weekends
• FizzBuzz
• Flatten a list
• Flipping bits game
• Flow-control structures
• Floyd's triangle
• Forest fire
• Fork
• Formal power series
• Formatted numeric output
• Forward difference
• Four bit adder
• Fractran
• Function composition
• Function definition
• Function prototype
• GUI component interaction
• GUI enabling/disabling of controls
• GUI/Maximum window dimensions
• Gamma function
• Generate lower case ASCII alphabet
• Generator/Exponential
• Generic swap
• Get system command output
• Globally replace text in several files
• Gray code
• Grayscale image
• Greatest common divisor
• Greatest element of a list
• Greatest subsequential sum
• Greyscale bars/Display
• Guess the number
• Guess the number/With feedback
• Guess the number/With feedback (player)
• HTTP
• HTTPS
• Hailstone sequence
• 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/Newline omission
• Hello world/Standard error
• Hello world/Text
• Hello world/Web server
• Here document
• Heronian triangles
• Higher-order functions
• History variables
• Hofstadter Figure-Figure sequences
• Hofstadter Q sequence
• Hofstadter-Conway $10,000 sequence
• Holidays related to Easter
• Horizontal sundial calculations
• Horner's rule for polynomial evaluation
• Host introspection
• Hostname
• Huffman coding
• IBAN
• Identity matrix
• Image convolution
• Image noise
• Include a file
• Increment a numerical string
• Infinity
• Inheritance/Multiple
• Inheritance/Single
• Input loop
• Integer comparison
• Integer overflow
• Integer sequence
• Introspection
• Inverted index
• Inverted syntax
• JSON
• Jensen's Device
• JortSort
• Josephus problem
• Jump anywhere
• Kaprekar numbers
• Keyboard input/Flush the keyboard buffer
• Keyboard input/Keypress check
• Keyboard input/Obtain a Y or N response
• Knapsack problem/0-1
• Knapsack problem/Continuous
• Knapsack problem/Unbounded
• Knight's tour
• Knuth shuffle
• Knuth's algorithm S
• Kronecker product
• LU decomposition
• LZW compression
• Langton's ant
• Largest int from concatenated ints
• Last Friday of each month
• Last letter-first letter
• Leap year
• Least common multiple
• 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
• 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/Infinite
• Loops/N plus one half
• Loops/Nested
• Loops/While
• Lucas-Lehmer test
• Luhn test of credit card numbers
• MD5
• MD5/Implementation
• Magic 8-Ball
• Magic squares of odd order
• Man or boy test
• Mandelbrot set
• Map range
• Mastermind
• Matrix multiplication
• Matrix transposition
• Matrix-exponentiation operator
• Maximum triangle path sum
• Maze generation
• Maze solving
• McNuggets Problem
• Median filter
• Memory allocation
• Memory layout of a data structure
• Metered concurrency
• Mian-Chowla sequence
• Middle three digits
• Miller–Rabin primality test
• Minesweeper game
• Modular exponentiation
• Modular inverse
• Monte Carlo methods
• Monty Hall problem
• Morse code
• Mouse position
• Move-to-front algorithm
• Multifactorial
• Multiline shebang
• Multiple distinct objects
• Multiple regression
• Multiplication tables
• Multiplicative order
• Multisplit
• Munching squares
• Mutual recursion
• N'th
• N-queens problem
• Named parameters
• Narcissist
• Narcissistic decimal number
• Nested function
• 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
• Object serialization
• Odd word problem
• Old lady swallowed a fly
• One of n lines in a file
• One-dimensional cellular automata
• OpenGL
• Optional parameters
• Order two numerical lists
• Ordered Partitions
• Ordered words
• Palindrome detection
• Pangram checker
• Parallel calculations
• Parametric polymorphism
• Parametrized SQL statement
• Parsing/RPN calculator algorithm
• Parsing/RPN to infix conversion
• Partial function application
• Pascal matrix generation
• Pascal's triangle
• Pascal's triangle/Puzzle
• Pathological floating point problems
• Percentage difference between images
• Perfect numbers
• Perfect shuffle
• Permutation test
• Permutations
• Permutations/Derangements
• Pernicious numbers
• Phrase reversals
• Pi
• Pick random element
• Pig the dice game
• Pig the dice game/Player
• Playing cards
• Plot coordinate pairs
• Pointers and references
• Polymorphic copy
• Polymorphism
• Polynomial long division
• Polynomial regression
• Population count
• Power set
• Pragmatic directives
• Price fraction
• Primality by trial division
• Prime decomposition
• Priority queue
• Probabilistic choice
• Problem of Apollonius
• Program name
• Program termination
• Proper divisors
• Pythagorean triples
• QR decomposition
• Quaternion type
• Queue/Definition
• Queue/Usage
• Quine
• RSA code
• Random number generator (device)
• Random number generator (included)
• Random numbers
• Range expansion
• Range extraction
• Rate counter
• Ray-casting algorithm
• Read a configuration file
• 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
• Remove lines from a file
• Rename a file
• Rendezvous
• Rep-string
• Repeat
• Repeat a string
• Resistor mesh
• Return multiple values
• Reverse a string
• Reverse words in a string
• Rock-paper-scissors
• Roman numerals/Decode
• Roman numerals/Encode
• Roots of a function
• Roots of a quadratic function
• 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
• Safe addition
• Same Fringe
• Scope modifiers
• Search a list
• Search a list of records
• Secure temporary file
• Self-describing numbers
• Self-referential sequence
• Semiprime
• Semordnilap
• Send email
• Sequence of non-squares
• Sequence of primes by trial division
• Set
• Set consolidation
• Set puzzle
• Seven-sided dice from five-sided dice
• Shell one-liner
• Shoelace formula for polygonal area
• Short-circuit evaluation
• Show Ascii table
• 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
• Smith numbers
• Sockets
• Solve a Holy Knight's tour
• Solve the no connection puzzle
• 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 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/Quicksort
• Sorting algorithms/Radix sort
• Sorting algorithms/Selection sort
• Sorting algorithms/Shell sort
• Sorting algorithms/Sleep sort
• Sorting algorithms/Stooge sort
• Soundex
• Special characters
• Special variables
• Spiral matrix
• Split a character string based on change of character
• Stack
• Stack traces
• Stair-climbing puzzle
• Start from a main routine
• Statistics/Basic
• Stem-and-leaf plot
• Stern-Brocot sequence
• 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
• Subleq
• Subset sum problem
• Substitution Cipher
• Substring
• Substring/Top and tail
• Subtractive generator
• Sudoku
• Sum and product of an array
• Sum digits of an integer
• Sum of a series
• Sum of squares
• Sum to 100
• Sutherland-Hodgman polygon clipping
• Symmetric difference
• Synchronous concurrency
• System time
• Take notes on the command line
• Temperature conversion
• Terminal control/Clear the screen
• Terminal control/Cursor positioning
• Terminal control/Display an extended character
• Terminal control/Inverse video
• Terminal control/Ringing the terminal bell
• Ternary logic
• Test a function
• Text processing/1
• Text processing/2
• Text processing/Max licenses in use
• The Name Game
• The Twelve Days of Christmas
• Thiele's interpolation formula
• Thue-Morse
• Tic-tac-toe
• Time a function
• Tokenize a string
• Top rank per group
• Topological sort
• Topswops
• Trabb Pardo–Knuth algorithm
• Tree traversal
• Trigonometric functions
• Truncatable primes
• Truncate a file
• Twelve statements
• URL decoding
• URL encoding
• UTF-8 encode and decode
• Ulam spiral (for primes)
• Unbias a random generator
• Undefined values
• Unicode strings
• Unicode variable names
• Universal Turing machine
• Unix/ls
• Use another language to call a function
• Validate International Securities Identification Number
• Van der Corput sequence
• Variable size/Get
• Variable size/Set
• Variable-length quantity
• Variables
• Variadic function
• Vector products
• Verify distribution uniformity/Chi-squared test
• Verify distribution uniformity/Naive
• Vigenère cipher
• Vigenère cipher/Cryptanalysis
• Visualize a tree
• Walk a directory/Non-recursively
• Walk a directory/Recursively
• Web scraping
• Window creation
• Wireworld
• Word wrap
• Write entire file
• Write float arrays to a text file
• XML/DOM serialization
• XML/Input
• XML/Output
• Yin and yang
• Zebra puzzle
• Zeckendorf number representation
• Zero to the zero power
• Zig-zag matrix