Prolog

Prolog is a logic programming language. It is programmed declaratively, using ''resolution'' and ''backtracking'' to confirm propositions based on declared facts and rules.

Tasks

• 100 doors
• 2048
• 24 game
• 24 game/Solve
• 4-rings or 4-squares puzzle
• A+B
• ABC Problem
• AKS test for primes
• Abundant, deficient and perfect number classifications
• Accumulator factory
• Ackermann function
• Align columns
• Almost prime
• Amicable pairs
• Anagrams
• Anagrams/Deranged anagrams
• Animate a pendulum
• Animation
• Anonymous recursion
• Anti-primes
• Apply a callback to an array
• Arbitrary-precision integers (included)
• Arithmetic evaluation
• Arithmetic-geometric mean
• Arithmetic/Integer
• Array concatenation
• Array length
• Arrays
• Assertions
• Associative array/Creation
• Associative array/Iteration
• Averages/Arithmetic mean
• Averages/Median
• Babbage problem
• Balanced brackets
• Balanced ternary
• Base64 decode data
• Benford's law
• Best shuffle
• Binary digits
• Binary search
• Binary strings
• Box the compass
• Bresenham's Line Algorithm
• Bulls and cows
• Bulls and cows/Player
• CSV data manipulation
• CSV to HTML translation
• Caesar cipher
• Calendar
• Call a foreign-language function
• Case-sensitivity of identifiers
• Catalan numbers
• Catamorphism
• Character codes
• Chat server
• Check that file exists
• Church Numerals
• Closest-pair problem
• Closures/Value capture
• Collections
• Combinations
• Comma quibbling
• Comments
• Compound data type
• Concurrent computing
• Conditional structures
• Constrained random points on a circle
• Continued fraction
• Convert seconds to compound duration
• Copy a string
• Count in octal
• Count occurrences of a substring
• Cramer's rule
• Create an HTML table
• Currying
• Date format
• Day of the week
• Determine if a string is numeric
• Dijkstra's algorithm
• Dinesman's multiple-dwelling problem
• Dining philosophers
• Dot product
• Dragon curve
• Draw a cuboid
• Dutch national flag problem
• Elementary cellular automaton
• Empty string
• Entropy
• Environment variables
• Equilibrium index
• Ethiopian multiplication
• Euler's sum of powers conjecture
• Even or odd
• Evolutionary algorithm
• Exceptions
• Execute Brainfuck
• Execute a Markov algorithm
• Execute a system command
• Exponentiation operator
• Factorial
• Factors of an integer
• Farey sequence
• Fast Fourier transform
• Fibonacci sequence
• Filter
• Finite state machine
• First-class functions
• Five weekends
• FizzBuzz
• Flatten a list
• Floyd's triangle
• Floyd-Warshall algorithm
• Four bit adder
• Fractal tree
• Function composition
• Function definition
• GUI component interaction
• GUI enabling/disabling of controls
• Galton box animation
• Generate lower case ASCII alphabet
• Generic swap
• 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
• Hailstone sequence
• Hamming numbers
• Happy numbers
• Harshad or Niven series
• Hash from two arrays
• Hash join
• Hello world!
• Hello world/Graphical
• Hello world/Text
• Hello world/Web server
• Higher-order functions
• Hofstadter Figure-Figure sequences
• Honeycombs
• Horner's rule for polynomial evaluation
• Huffman coding
• Hunt The Wumpus
• I.Q. Puzzle
• Include a file
• Increment a numerical string
• Input/Output for Lines of Text
• Integer sequence
• Interactive programming
• Inverted syntax
• JSON
• Kaprekar numbers
• Knapsack problem/0-1
• Knapsack problem/Continuous
• Knapsack problem/Unbounded
• Knight's tour
• Langton's ant
• Largest int from concatenated ints
• Largest number divisible by its digits
• Last letter-first letter
• Leap year
• Least common multiple
• Letter frequency
• Levenshtein distance
• List comprehensions
• Literals/String
• Logical operations
• Long multiplication
• Longest Common Substring
• Longest common subsequence
• Longest increasing subsequence
• Look-and-say sequence
• Loop over multiple arrays simultaneously
• Loops/Do-while
• Loops/Downward for
• Loops/For
• Loops/For with a specified step
• Loops/Foreach
• Loops/Infinite
• Loops/N plus one half
• Loops/While
• Loops/with multiple ranges
• Lucas-Lehmer test
• Mandelbrot set
• Mastermind
• Matrix multiplication
• Matrix transposition
• Maximum triangle path sum
• Maze generation
• Maze solving
• Menu
• Mersenne primes
• Metaprogramming
• Middle three digits
• Miller–Rabin primality test
• Minesweeper game
• Modular arithmetic
• Multisplit
• Munching squares
• Mutual recursion
• N'th
• N-queens problem
• Named parameters
• Non-continuous subsequences
• Nonogram solver
• Number names
• Odd word problem
• One-dimensional cellular automata
• Ordered words
• Palindrome detection
• Pangram checker
• Parallel calculations
• Parse command-line arguments
• Parsing/RPN calculator algorithm
• Partial function application
• Pascal's triangle
• Pascal's triangle/Puzzle
• Pattern matching
• Perfect numbers
• Permutations
• Pick random element
• Playing cards
• Poker hand analyser
• Power set
• Primality by trial division
• Prime decomposition
• Priority queue
• Program name
• Program termination
• Proper divisors
• Pythagorean triples
• Quaternion type
• Queue/Definition
• Queue/Usage
• Quine
• Range expansion
• Range extraction
• Remove duplicate elements
• Rep-string
• Repeat
• Repeat a string
• Reverse a string
• Rock-paper-scissors
• Roman numerals/Decode
• Roman numerals/Encode
• Rot-13
• Run-length encoding
• Search a list
• Self-describing numbers
• Set
• Shell one-liner
• Short-circuit evaluation
• Sierpinski triangle
• Sierpinski triangle/Graphical
• Sieve of Eratosthenes
• Simple windowed application
• Sleep
• Sockets
• Solve a Hidato puzzle
• Solve the no connection puzzle
• Sort an integer array
• Sort using a custom comparator
• Sorting algorithms/Bubble sort
• Sorting algorithms/Cocktail sort
• Sorting algorithms/Insertion sort
• Sorting algorithms/Merge sort
• Sorting algorithms/Permutation sort
• Sorting algorithms/Quicksort
• Sorting algorithms/Selection sort
• Sorting algorithms/Sleep sort
• Soundex
• Spiral matrix
• Stable marriage problem
• Stack
• State name puzzle
• String interpolation (included)
• String prepend
• Strip a set of characters from a string
• Strip comments from a string
• Strip whitespace from a string/Top and tail
• Substring
• Substring/Top and tail
• Sudoku
• Sum and product of an array
• Sum multiples of 3 and 5
• Sum of a series
• Sum of squares
• Symmetric difference
• Test a function
• The Twelve Days of Christmas
• Tic-tac-toe
• Tokenize a string
• Top rank per group
• Tree traversal
• Truth table
• Twelve statements
• Undefined values
• Unicode variable names
• Universal Turing machine
• Van der Corput sequence
• Variables
• Variadic function
• Vector products
• Visualize a tree
• Window creation
• Y combinator
• Yin and yang
• Zebra puzzle
• Zig-zag matrix