Given an arbitrary number of collections of cars (each car identified by make and model), build a decision model that:
- Finds the set of cars common to all the collections.
- Identifies cars that exist in only one collection and no others.
Start by solving it for just two collections, then see if your approach generalizes to any number of collections.
Optional extension: give each car a price attribute, and for each collection, keep only the most expensive instance of each make/model combination (eliminating cheaper duplicates).
Send your solutions to DecisionManagementCommunity@gmail.com, or open a pull request to add yours here.