haskell

# Exercism Haskell Track

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Exercism exercises in Haskell

- [How to contribute](#how-to-contribute)
  * [Git and GitHub](#git-and-github)
  * [Report or fix a bug](#report-or-fix-a-bug)
  * [Review issues and pull requests](#review-issues-and-pull)
  * [Port or create an exercise](#port-or-create-an-exercise)
  * [Port or create a concept](#port-or-create-a-concept)
  * [Port or create a concept exercise](#port-or-create-a-concept-exercise)
  * [Update an exercise test suite](#update-an-exercise-test-suite)
- [Repository structure and conventions](#repository-structure-and-conventions)
  * [Directory structure](#directory-structure)
  * [Practice exercise structure](#practice-exercise-structure)
  * [Exercise versioning](#exercise-versioning)
- [Development Dependencies](#development-dependencies)
- [Stub solution](#stub-solution)
- [Example solution](#example-solution)
- [Test suite](#test-suite)
- [Running tests](#running-tests)
- [Running HLint](#running-hlint)
- [Automated Test Runner](#automated-test-runner)

## How to contribute

### Git and GitHub
If you would like to contribute but lack experience with git and/or GitHub, try these resources:

- [GitHub Guides: Understanding the GitHub flow](https://guides.github.com/introduction/flow/)
- [GitHub Help: Creating a pull request from a fork](https://help.github.com/articles/creating-a-pull-request-from-a-fork/)
- [Exercism's Git Basics](https://github.com/exercism/docs/blob/master/contributing/git-basics.md)

### Report or fix a bug
Typical examples for a bug: A typo, a missing test case, an unclear or ambiguous problem description.

- If you are unsure whether you have really found a bug, [just ask](https://github.com/exercism/haskell/issues/new).
- To report a bug you can [create an issue](https://github.com/exercism/haskell/issues/new).
- If you already have a fix for it, you may submit a pull request.

### Review issues and pull requests
If you have a dedicated opinion you are welcome to [write a comment](https://help.github.com/articles/commenting-on-a-pull-request/) for an [issue](https://github.com/exercism/haskell/issues) or a [pull request](https://github.com/exercism/haskell/pulls).

Please be detailed and include reasons, links or arguments to support your opinion.

### Port or create an exercise

Exercism contains two types of exercises: concept exercises, and practice exercises.

Haskell has some concept exercises.
You can read about [concept exercises](reference/implementing-a-concept-exercise.md) and take part in creating Haskell's learning track.

You can get a full list of [common Exercism practice exercises](https://github.com/exercism/problem-specifications/tree/main/exercises) and cross-reference it with [Haskell practice exercises](https://github.com/exercism/haskell/tree/main/exercises/practice) and implem