Exercises on the Dart Track | Exercism

Hello World

The classical introductory exercise. Just say "Hello, World!"

optional values

text formatting

Resistor Color

Convert a resistor band's color to its numeric representation

Two Fer

Create a sentence of the form "One for X, one for me."

optional values

text formatting

Resistor Color Duo

Convert color codes, as used on resistors, to a numeric value.

Reverse String

Reverse a string

Leap

Given a year, report if it is a leap year.

Scrabble Score

Given a word, compute the Scrabble score for that word.

Beer Song

Produce the lyrics to that beloved classic, that field-trip favorite: 99 Bottles of Beer on the Wall.

text formatting

Armstrong Numbers

Determine if a number is an Armstrong number

Isogram

Determine if a word or phrase is an isogram.

Difference Of Squares

Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.

Word Count

Given a phrase, count the occurrences of each word in that phrase.

regular expressions

Bob

Bob is a lackadaisical teenager. In conversation, his responses are very limited.

pattern recognition

regular expressions

Space Age

Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.

floating point numbers

Hamming

Calculate the Hamming difference between two DNA strands.

Acronym

Convert a long phrase to its acronym

regular expressions

Phone Number

Clean up user-entered phone numbers so that they can be sent SMS messages.

regular expressions

Gigasecond

Given a moment, determine the moment that would be after a gigasecond has passed.

Raindrops

Convert a number to a string, the content of which depends on the number's factors.

RNA Transcription

Given a DNA strand, return its RNA Complement Transcription.

Anagram

Given a word and a list of possible anagrams, select the correct sublist.

Prime Factors

Compute the prime factors of a given natural number.

Diamond

Given a letter, print a diamond starting with 'A' with the supplied letter at the widest point.

Matching Brackets

Make sure the brackets and braces all match.

pattern matching

Pascal's Triangle

Compute Pascal's triangle up to a given number of rows.

Darts

Write a function that returns the earned points in a single toss of a Darts game

Pangram

Determine if a sentence is a pangram.

pattern matching

regular expressions

Luhn

Given a number determine whether or not it is valid per the Luhn formula.

type conversion

Minesweeper

Add the numbers to a minesweeper board

object oriented programming

ISBN Verifier

Check if a given string is a valid ISBN-10 number.

Collatz Conjecture

Calculate the number of steps to reach 1 using the Collatz conjecture

exception handling

Binary Search Tree

Insert and search for numbers in a binary tree.

object oriented programming

Nth Prime

Given a number n, determine what the nth prime is.

Allergies

Given a person's allergy score, determine whether or not they're allergic to a given item, and their full list of allergies.

bitwise operations

Triangle

Determine if a triangle is equilateral, isosceles, or scalene.

Secret Handshake

Given a decimal number, convert it to the appropriate sequence of events for a secret handshake.

bitwise operations