Computer Science · May / June 2018 · Paper 2 SL · Question 5

5. In a small shop two people prepare and sell bread rolls. The space for preparing the bread rolls is small. This space includes a sink and a cash register. Each of the ingredients used to fill the bread rolls is kept in a separate bowl with its own fork or spoon. Sometimes the bowls need to be refilled. Preparing a bread roll requires the following steps: • slice the bread roll • spread its base with some sauce • add lettuce • fill with at most two chosen fillings • cover the roll with the other half • wrap it in paper. After that, the roll is ready for payment and collection. Even when the shop is busy, each person only prepares one bread roll at a time.

Read automatically from the paper; the printed page above is exact.