Rust Challenge: Roman Numerals

Learning Rust Through Small Challenges

Photo by Ales Krivec on Unsplash

In this mini Rust challenges, we will solve a problem using Rust. The goal of these challenges is to get comfortable reading and writing Rust code by solving various problems.

I do them on a daily basis, so if you want to join please come back here every day and check every challenge and lets us solve them together.

Challenge

These challenges are based on exercises from Exercism. You can find the original challenges and more on their platform below.

Roman Numerals in Rust on Exercism

Introduction

Today, most people in the world use Arabic numerals (0–9). But if you travelled back two thousand years, you’d find that most Europeans were using Roman numerals instead.

To write a Roman numeral we use the following Latin letters, each of which has a value:

MDCLXVI1000500100501051

A Roman numeral is a sequence of these letters, and its value is the sum of the letters’ values. For example…