Add new Swift exercises
One of the easiest ways to add new exercises to the Swift 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 Swift.
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 Swift track repository on GitHub.
Correctly determine change to be given using the least number of coins
Determine if a number is an Armstrong number
Simulate a bank account supporting opening/closing, withdraws, and deposits of money. Watch out for concurrent transactions!
Implement a basic reactive system.
Given the size, return a square matrix of numbers in spiral order.
Write a function to solve alphametics puzzles.
Compute the result for a game of Hex / Polygon
Implement an evaluator for a very simple subset of Forth
Rail Fence Cipher
Implement encoding and decoding for the rail fence cipher.
Count the rectangles in an ASCII diagram.
Variable Length Quantity
Implement variable length quantity encoding and decoding.
Creating a zipper for a binary tree.
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.
Diffie-Hellman key exchange.
Parallel Letter Frequency
Count the frequency of letters in texts using parallel computation.
Given two buckets of different size, demonstrate how to measure an exact number of liters.
Refactor a Markdown parser
Search a file for lines matching a regular expression pattern. Return the line number and contents of each matching line.
Reparent a graph on a selected node
Create a program to solve a word search puzzle.
Implement various kinds of error handling and resource management
Implement rational numbers.
Count the scored points on a Go board.
Parsing a Smart Game Format string.
Write a Domain Specific Language similar to the Graphviz dot language
Refactor a tree building algorithm.
Score a single throw of dice in the game Yacht
Implement the logic of the hangman game using functional reactive programming.
Refactor a ledger printer.
Use lenses to update nested records (specific to languages with immutable data).
Report network IO statistics