Add new Elixir exercises

One of the easiest ways to add new exercises to the Elixir track is to translate them from other language tracks on Exercism. This page lists all of the problem specifications in the common pool of exercises which have not yet been implemented in Elixir.

The icon links to the language-independent description of the problem.

The icon links to the canonical test data.

We also link to all the implementations of each exercise in other languages, which you can use for inspiration.

Once you've picked an exercise, follow the instructions in this guide and submit your pull request to the Elixir track repository on GitHub.

Exercises

About

Examples

Linked List

Implement a doubly linked list

Armstrong Numbers

Determine if a number is an Armstrong number

Circular Buffer

A data structure that uses a single, fixed-size buffer as if it were connected end-to-end.

Complex Numbers

Implement complex numbers.

Food Chain

Generate the lyrics of the song 'I Know an Old Lady Who Swallowed a Fly'

React

Implement a basic reactive system.

House

Output the nursery rhyme 'This is the House that Jack Built'.

Proverb

For want of a horseshoe nail, a kingdom was lost, or so the saying goes. Output the full text of this proverbial rhyme.

Rectangles

Count the rectangles in an ASCII diagram.

Variable Length Quantity

Implement variable length quantity encoding and decoding.

Book Store

To try and encourage more sales of different books from a popular 5 book series, a bookshop has decided to offer discounts of multiple-book purchases.

Two Bucket

Given two buckets of different size, demonstrate how to measure an exact number of liters.

Pov

Reparent a graph on a selected node

Word Search

Create a program to solve a word search puzzle.

Error Handling

Implement various kinds of error handling and resource management

Rational Numbers

Implement rational numbers.

Zebra Puzzle

Solve the zebra puzzle.

Go Counting

Count the scored points on a Go board.

Sgf Parsing

Parsing a Smart Game Format string.

Tree Building

Refactor a tree building algorithm.

Yacht

Score a single throw of dice in the game Yacht

Hangman

Implement the logic of the hangman game using functional reactive programming.

Ledger

Refactor a ledger printer.

Lens Person

Use lenses to update nested records (specific to languages with immutable data).

Paasio

Report network IO statistics