Blog articles/Exercises

Programming exercises in Haskell

• Diff in Haskell
• Introductory Haskell: Solving the Sorting-It-Out Kata
• The "perfect shuffles" puzzle (solved in Haskell)
• A Simple RPN Calculator in Haskell
• Software Cipher
• Dot matrix printer
  • A Haskell Toy
  • Revised Dot-Matrix Printhead
• Overlap function in Haskell for rectangles
• Tying Knots Generically
• A quick and dirty theorem prover in Haskell
• Brainf*k interpreter in Haskell
• FourFours in Haskell
• Using Bayesian filtering instead of 'if' in Haskell
• Counting fibonaccis
• Decision making
• Solving an arithmetic puzzle with Haskell
• The Rationals
• Break a string into pieces

Particular exercises

Prime sieves

• Prime sieves in Haskell
• Eratosthenes sieve

Supermarket Pricing

• The Supermarket Pricing Kata in Haskell

N-Queens

• N-Queens in Haskell

The Google Code Jam "countPaths" problem

• Solving the Google Code Jam "countPaths" problem in Haskell

Secret Santas in Haskell

• I: Preliminaries
• II: Orbits and Lists
• III: Lather, Rinse, Repeat 1

Run length encoding

• part 1
• part 2
• part 3

The bowling puzzle

• The Bowling Game Kata in Haskell
• Bowling in Haskell
  • Haskell Bowling
  • Bowling in Haskell Response

Norvig's spell checker

• Norvig's spell checker and idiomatic Haskell

Chris' Puzzle

• A neat game with a really neat solution: puzzle fun in Haskell

Word numbers

• Solving the word numbers problem:
  • Part 1: Billion approaches
  • Part 2
  • Part 3: Binary Search

Games

• Haskell chess
• My first Haskell adventure game!
• Hangman AI in Haskell
• Haskell as a puzzle solver
• OpenGL tetris in Haskell