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Overview
Syllabus
- Hello World
- Exercism's classic introductory exercise. Just say "Hello, World!".
- Shopping List
- jq fundamentals
- Assembly Line
- Learn about numbers by analyzing the production of an assembly line.
- Log Line Parser
- Learn about strings by processing logs.
- Bird Count
- Learn about arrays by keeping track of how many birds visit your garden.
- High Score Board
- Practice jq objects by tracking high scores of an arcade game.
- Lasagna
- Demonstrating variables in jq
- Vehicle Purchase
- Learn about comparison and conditionals while preparing for your next vehicle purchase
- Remote Control Car
- Learn about functions by playing around with a remote controlled car.
- Grade Stats
- Demonstrate the reduce filter in jq
- Recursive Functions
- Demonstrate recursive functions in jq
- Regular Chatbot
- Learn the basics of regular expressions in jq by helping a chatbot understand humans.
- Two-Fer
- Create a sentence of the form "One for X, one for me.".
- Acronym
- Convert a long phrase to its acronym.
- Bob
- Bob is a lackadaisical teenager. In conversation, his responses are very limited.
- Collatz Conjecture
- Calculate the number of steps to reach 1 using the Collatz conjecture.
- 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.
- ETL
- Change the data format for scoring a game to more easily add other languages.
- Flatten Array
- Take a nested list and return a single list with all values except nil/null.
- Grade School
- Given students' names along with the grade that they are in, create a roster for the school.
- Hamming
- Calculate the Hamming distance between two DNA strands.
- Isogram
- Determine if a word or phrase is an isogram.
- Kindergarten Garden
- Given a diagram, determine which plants each child in the kindergarten class is responsible for.
- Leap
- Determine whether a given year is a leap year.
- Nucleotide Count
- Given a DNA string, compute how many times each nucleotide occurs in the string.
- Pangram
- Determine if a sentence is a pangram.
- Phone Number
- Clean up user-entered phone numbers so that they can be sent SMS messages.
- Prime Factors
- Compute the prime factors of a given natural number.
- Raindrops
- Convert a number into its corresponding raindrop sounds - Pling, Plang and Plong.
- 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.
- Resistor Color Trio
- Convert color codes, as used on resistors, to a human-readable label.
- Reverse String
- Reverse a given string.
- RNA Transcription
- Given a DNA strand, return its RNA complement.
- Scrabble Score
- Given a word, compute the Scrabble score for that word.
- Series
- Given a string of digits, output all the contiguous substrings of length `n` in that string.
- Space Age
- Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.
- All Your Base
- Convert a number, represented as a sequence of digits in one base, to any other base.
- Allergies
- Given a person's allergy score, determine whether or not they're allergic to a given item, and their full list of allergies.
- Anagram
- Given a word and a list of possible anagrams, select the correct sublist.
- Armstrong Numbers
- Determine if a number is an Armstrong number.
- Atbash Cipher
- Create an implementation of the Atbash cipher, an ancient encryption system created in the Middle East.
- Binary Search
- Implement a binary search algorithm.
- Bottle Song
- Produce the lyrics to the popular children's repetitive song: Ten Green Bottles.
- Diamond
- Given a letter, print a diamond starting with 'A' with the supplied letter at the widest point.
- Food Chain
- Generate the lyrics of the song 'I Know an Old Lady Who Swallowed a Fly'.
- Gigasecond
- Given a moment, determine the moment that would be after a gigasecond has passed.
- Largest Series Product
- Given a string of digits, calculate the largest product for a contiguous substring of digits of length n.
- Luhn
- Given a number determine whether or not it is valid per the Luhn formula.
- Matching Brackets
- Make sure the brackets and braces all match.
- Meetup
- Calculate the date of meetups.
- Nth Prime
- Given a number n, determine what the nth prime is.
- Pascal's Triangle
- Compute Pascal's triangle up to a given number of rows.
- Pig Latin
- Implement a program that translates from English to Pig Latin.
- Protein Translation
- Translate RNA sequences into proteins.
- Proverb
- For want of a horseshoe nail, a kingdom was lost, or so the saying goes. Output the full text of this proverbial rhyme.
- Robot Simulator
- Write a robot simulator.
- Roman Numerals
- Convert modern Arabic numbers into Roman numerals.
- Rotational Cipher
- Create an implementation of the rotational cipher, also sometimes called the Caesar cipher.
- Run-Length Encoding
- Implement run-length encoding and decoding.
- Satellite
- Rebuild binary trees from pre-order and in-order traversals.
- Secret Handshake
- Given a decimal number, convert it to the appropriate sequence of events for a secret handshake.
- Sieve
- Use the Sieve of Eratosthenes to find all the primes from 2 up to a given number.
- Spiral Matrix
- Given the size, return a square matrix of numbers in spiral order.
- Square Root
- Given a natural radicand, return its square root.
- Tournament
- Tally the results of a small football competition.
- Transpose
- Take input text and output it transposed.
- Yacht
- Score a single throw of dice in the game Yacht.
- Flower Field
- Mark all the flowers in a garden.
- Forth
- Implement an evaluator for a very simple subset of Forth.
- 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.
- Two Bucket
- Given two buckets of different size, demonstrate how to measure an exact number of liters.
- Zebra Puzzle
- Solve the zebra puzzle.
