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Code Kata: Roman Numeral – Part 1

Christmas is over, so we get rid of the Christmas Tree.
Today I want to show You another Code Kata: Roman Numerals. The task seems to be quite easy. Write a program which converts a decimal number into a string which contains the equivalent as a roman literal. E.g. convert 1984 into MCMLXXXIV.

The requirements

We just use the characters from I to M.

Symbol I V X L C D M
Value 1 5 10 50 100 500 1,000

We first write a simple conversion function which ignores the abbreviation syntax, so instead of IX for 9 we write VIIII. To do so we use integer division and modulo operation.  We start with the highest number and work our way down. Have a look: Continue reading “Code Kata: Roman Numeral – Part 1”

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Code Kata: Christmas Tree

Inspired by a blog post of Dave Thomas I started to implement my technology learning roadmap by writing little code katas.

To kill two birds with one stone I first solve a programming puzzle with my lingua franca Python. That helped me to concentrate on solving the algorithmic part of the puzzle because I don’t have to constantly worry about syntax and semantics.

Then I did the whole thing again this time in the language I want to learn: Rust

To give You an example how that works I will elaborate on the Christmas tree kata. Continue reading “Code Kata: Christmas Tree”