Pizzabot! A Ruby app that gives directions and drops off pizzas!
The code can be found here: github
The Challenge: Instruct Pizzabot on how to deliver pizzas to all the houses in a neighborhood. In more specific terms, given a grid (where each point on the grid is one house) and a list of points representing houses in need of pizza delivery, return a list of instructions for getting Pizzabot to those locations and delivering. An instruction is one of: N: Move north S: Move south E: Move east W: Move west D: Drop pizza