CodeKata
The task is to implement code for a supermarket scanner that scans items in one at a time and calculates the total price of your basket after you're done scanning.
The items codes are individual letters of the alphabet (A, B, C, and so on). Our goods are priced individually. In addition, there are special deals on some combinations of products.
For example, item ‘A’ might cost 50 cent individually, but we have a special offer: buy three ‘A’s and they'll cost you 1'30€. In fact this week's prices are:
Product prices
Prices per 1 item:
| Item | Price |
|---|---|
A |
50 |
B |
30 |
C |
20 |
D |
15 |
Special deals
Prices per a complete set of items:
| Items | Price |
|---|---|
A + A + A |
130 |
B + B |
45 |