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Overview
Syllabus
- Hello World
- Exercism's classic introductory exercise. Just say "Hello, World!".
- Lucian's Luscious Lasagna
- Learn about the basics of Cairo by following a lasagna recipe.
- Annalyn's Infiltration
- Learn about booleans by helping Annalyn free her best friend.
- Cryptographer
- Learn how to work with the Felt type by helping a cryptographer configure a secure communication system.
- Magician in Training
- Help Elyse with her Enchantments and learn about arrays in the process.
- weather-report
- Learn enums while building a weather reporting system.
- Bakery Order System
- Learn Cairo's control flow constructs while managing a bakery's daily operations.
- Welcome To Tech Palace!
- Learn how to represent strings by generating text for a store's new display.
- Gross Store
- Learn about maps by selling items by the dozen at the Gross Store.
- Election Day
- Learn about ownership and structs by creating a simple voting system.
- Red vs. Blue: Darwin Style
- Learn about modules by managing car development teams.
- Health Statistics
- Learn structs to store statistics for a health-monitoring system.
- Airport Robot
- Learn about generic types by programming an airport service robot.
- Low-power Embedded Game
- Learn tuples while writing convenience functions for a low-power embedded game
- Lucian's Luscious Lasagna
- Learn about the basics of Cairo by following a lasagna recipe.
- The Realm of Echoes
- Learn printing and formatting values with the art of EchoSpeak.
- Role Playing Game
- Learn about the `Option` enum by creating a minimal role-playing game
- Magical Measurements
- Learn Cairo's type conversion traits while helping Astrid the alchemist standardize magical measurements.
- Calculator Conundrum
- Learn about error handling by working on a simple calculator.
- Chrono Realms
- Learn operator overloading by implementing custom operators for a time manipulation system
- Chrono Realms Chrono Chain
- Learn smart pointers by building the magical Chrono Chain
- Reverse String
- Reverse a given string.
- Acronym
- Convert a long phrase to its acronym.
- Atbash Cipher
- Create an implementation of the Atbash cipher, an ancient encryption system created in the Middle East.
- Collatz Conjecture
- Calculate the number of steps to reach 1 using the Collatz conjecture.
- Bob
- Bob is a lackadaisical teenager. In conversation, his responses are very limited.
- Hamming
- Calculate the Hamming distance between two DNA strands.
- Leap
- Determine whether a given year is a leap year.
- Semi Structured Logs
- Learn enums while building a logging utility.
- Darts
- Calculate the points scored in a single toss of a Darts game.
- Difference of Squares
- Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.
- Eliud's Eggs
- Help Eliud count the number of eggs in her chicken coop by counting the number of 1 bits in a binary representation.
- Isogram
- Determine if a word or phrase is an isogram.
- Nucleotide Count
- Given a DNA string, compute how many times each nucleotide occurs in the string.
- Pangram
- Determine if a sentence is a pangram.
- Pascal's Triangle
- Compute Pascal's triangle up to a given number of rows.
- Perfect Numbers
- Determine if a number is perfect, abundant, or deficient based on Nicomachus' (60 - 120 CE) classification scheme for positive integers.
- Raindrops
- Convert a number into its corresponding raindrop sounds - Pling, Plang and Plong.
- RNA Transcription
- Given a DNA strand, return its RNA complement.
- Rotational Cipher
- Create an implementation of the rotational cipher, also sometimes called the Caesar cipher.
- Secret Handshake
- Given a decimal number, convert it to the appropriate sequence of events for a secret handshake.
- Square Root
- Given a natural radicand, return its square root.
- Triangle
- Determine if a triangle is equilateral, isosceles, or scalene.
- Armstrong Numbers
- Determine if a number is an Armstrong number.
- Sublist
- Write a function to determine if a list is a sublist of another list.
- Scrabble Score
- Given a word, compute the Scrabble score for that word.
- Two-Fer
- Create a sentence of the form "One for X, one for me.".
- Yacht
- Score a single throw of dice in the game Yacht.
- Beer Song
- Produce the lyrics to that beloved classic, that field-trip favorite: 99 Bottles of Beer on the Wall.
- Clock
- Implement a clock that handles times without dates.
- Phone Number
- Clean up user-entered phone numbers so that they can be sent SMS messages.
- Roman Numerals
- Convert modern Arabic numbers into Roman numerals.
- Binary Search
- Implement a binary search algorithm.
- Largest Series Product
- Given a string of digits, calculate the largest product for a contiguous substring of digits of length n.
- Allergies
- Given a person's allergy score, determine whether or not they're allergic to a given item, and their full list of allergies.
- Matching Brackets
- Make sure the brackets and braces all match.
- Rational Numbers
- Implement rational numbers.
- Anagram
- Given a word and a list of possible anagrams, select the correct sublist.
- Custom Set
- Create a custom set type.
- Robot Simulator
- Write a robot simulator.
- Simple Linked List
- Write a simple linked list implementation that uses Elements and a List.
- Protein Translation
- Translate RNA sequences into proteins.
- Dominoes
- Make a chain of dominoes.
- Linked List
- Implement a doubly linked list.
- Resistor Color
- Convert a resistor band's color to its numeric representation.
- Resistor Color Duo
- Convert color codes, as used on resistors, to a numeric value.
- Prime Factors
- Compute the prime factors of a given natural number.
- Nth Prime
- Given a number n, determine what the nth prime is.
- Grains
- Calculate the number of grains of wheat on a chessboard given that the number on each square doubles.
- Proverb
- For want of a horseshoe nail, a kingdom was lost, or so the saying goes. Output the full text of this proverbial rhyme.
- Wordy
- Parse and evaluate simple math word problems returning the answer as an integer.
- High Scores
- Manage a player's High Score list.
- Sum of Multiples
- Given a number, find the sum of all the multiples of particular numbers up to but not including that number.
- Space Age
- Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.
- Series
- Given a string of digits, output all the contiguous substrings of length `n` in that string.
- Flower Field
- Mark all the flowers in a garden.
- Kindergarten Garden
- Given a diagram, determine which plants each child in the kindergarten class is responsible for.
- Luhn
- Given a number determine whether or not it is valid per the Luhn formula.
- All Your Base
- Convert a number, represented as a sequence of digits in one base, to any other base.
- Word Count
- Given a phrase, count the occurrences of each word in that phrase.
- Binary Search Tree
- Insert and search for numbers in a binary tree.
- Knapsack
- Given a knapsack that can only carry a certain weight, determine which items to put in the knapsack in order to maximize their combined value.
- Zipper
- Creating a zipper for a binary tree.
- Word Search
- Create a program to solve a word search puzzle.
- ISBN Verifier
- Check if a given string is a valid ISBN-10 number.
- Variable Length Quantity
- Implement variable length quantity encoding and decoding.
- ETL
- Change the data format for scoring a game to more easily add other languages.
