|BigBurger Inc. wants to see if having a single person at the counter both to
take orders and to serve them is feasible. At each BigBurger, customers will
arrive and get in line. When they get to the head of the line they will place
their order, which will be assembled and served to them. Then they will leave
the BigBurger and the next person in line will be able to order.
We need to know how long a customer may be forced to wait before he or she can
place an order. Given a script that lists each customer for a typical day,
we want to calculate the maximum customer waiting time. Each customer in the
script is characterized by an arrival time (measured in minutes after the store
opened) and a service duration (the number of minutes between ordering and
getting the food).
Create a class BigBurger that contains method maxWait that is given a int
arrival and a int service describing all the customers and returns the
maximum time spent by a customer between arriving and placing the order. Corresponding
elements of arrival and service refer to the same customer, and they are
given in the order in which they arrive at the store (arrival is in non-descending
If multiple customers arrive at the same time they will all join the line at the
same time, with the ones listed earlier ahead of ones appearing later in the list.