Exercises on the D Track | Exercism

Hello World

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

language basics

Leap

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

language basics

Gigasecond

Calculate the moment when someone has lived for 10^9 seconds.

language basics

RNA Transcription

Given a DNA strand, return its RNA Complement Transcription.

control flow foreach

string manipulation

Raindrops

Convert a number to a string, the contents of which depend on the number's factors.

control flow if statements

language basics

Bob

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

control flow if statements

string manipulation

ETL

We are going to do the `Transform` step of an Extract-Transform-Load.

associative arrays

control flow foreach

string manipulation

Hamming

Calculate the Hamming difference between two DNA strands.

control flow foreach

Nucleotide Count

Given a DNA string, compute how many times each nucleotide occurs in the string.

associative arrays

Robot Name

Manage robot factory settings.

Difference Of Squares

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

control flow foreach

template metaprogramming

Roman Numerals

Write a function to convert from normal numbers to Roman Numerals.

string manipulation

Series

Given a string of digits, output all the contiguous substrings of length `n` in that string.

string manipulation

Triangle

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

control flow if statements

language basics

Crypto Square

Implement the classic method for composing secret messages called a square code.

string manipulation

Circular Buffer

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

class templates

data structures

Pangram

Determine if a sentence is a pangram.

language basics

string manipulation

React

Implement a basic reactive system.

higher order functions

reactive programming