Software Craftsmanship Katas in Clojure

To run these as-is, you'll need to have Clojure and Leiningen installed. Then run from the terminal:

git clone git@github.com:branneman/katas.git katas
cd katas
lein test
lein run fizzbuzz 1 100
lein run leapyears 2016
lein run rpn-calculator 3 5 8 \* 7 + \*
lein run roman-numerals 789
lein run hangman airplane ajkei
lein run wind N NE
lein run data-munging-weather
lein run data-munging-football

FizzBuzz

Print the numbers between 1 and 100. If the number is divisible by 3, we want to print Fizz instead of this number. If the number is divisible by 5, we want to print Buzz instead. And if the number is divisible by both 3 and 5, we want to print FizzBuzz.

Source: https://josepaumard.github.io/katas/introductory/fizzbuzz-kata.html

LeapYears

Write a function that returns true or false depending on whether its input integer is a leap year or not. A leap year is defined as one that is divisible by 4, but is not otherwise divisible by 100 unless it is also divisible by 400.

Source: https://josepaumard.github.io/katas/introductory/leapyears-kata.html

RPN Calculator

An RPN calculator program computes expressions written in Reverse Polish Notation.

The RPN expression: 3 5 8 * 7 + * equals: 3 * ((5 * 8) + 7)

Source: https://josepaumard.github.io/katas/introductory/rpncalculator-kata.html

Roman Numerals

Write a function to convert from decimal to roman numerals.

Source: https://josepaumard.github.io/katas/intermediate/romannumerals-kata.html

ASCII Hangman

Given two words as input, where the words each match [a-z]+, output the current state of the hangman game as ASCII art. The first is to be guessed, the second word is the already-guessed letters.

Source: https://codegolf.stackexchange.com/questions/135936/ascii-hangman-in-progress

Wind directions

Given two cardinal wind directions, write a function that calculates the overlap: how much are they in the same direction?

Examples:

If I am cycling towards North, and the wind is going towards South, then I have a 0% overlap with its direction. The function should return 0 when given N and S.
If I am cycling towards North, and the wind is going towards North-East, then I have a 75% overlap with its direction. The function should return 0.75 when given N and NE.

Data Munging

Part 1: In bin/weather.dat you’ll find daily weather data for Morristown, NJ for June 2002. Write a program to output the day number (column one) with the smallest temperature spread (the maximum temperature is the second column, the minimum the third column).

Part 2: In bin/football.dat you'll find the results from the English Premier League for 2001/2. The columns labeled ‘F’ and ‘A’ contain the total number of goals scored for and against each team in that season. Write a program to output the name of the team with the smallest difference in ‘for’ and ‘against’ goals.

Source: http://codekata.com/kata/kata04-data-munging/

branneman/katas