Pick your best language

• Python
• Ruby
• Java

Let's bike across Europe!

Here's the problem: you need to get from Rome, Italy to Berlin, Germany and you only have your bike. Not all roads are bike-friendly so you only have a few routes available to you. What's the shortest path to get from Rome (in the south) to Berlin (in the North)?

Hints:

• The code for calculating distances, determining the length of the road, etc. is already written for you.
• Pick your best language. Don't make this harder than it needs to be.
• Take 5 minutes to read through the existing code.
• This is a graph traversal problem that has both easy and difficult solutions. Go for an easy one first.