Waiting line simulation in an Indian post office: In an Indian post office that not only delivers mail but also functions as a savings bank carrying out specific transactions, a lone postal worker serves a single queue of customers. Every customer receives a token # (serial number) as soon as they enter the queue. After service, the token is returned to the postal worker, and the customer leaves the queue. At any point in time, the worker may want to know how many customers are yet to be served.
1) Waiting line simulation in an Indian post office:
In an Indian post office that not only delivers mail but also functions as a savings
bank carrying out specific transactions, a lone postal worker serves a single queue of
customers. Every customer receives a token # (serial number) as soon as they enter
the queue. After service, the token is returned to the postal worker, and the customer
leaves the queue. At any point in time, the worker may want to know how many
customers are yet to be served.
i) Implement the system using an appropriate queue data structure, simulating a
random arrival and departure of customers after service completion.
ii) If a customer arrives to operate their savings account at the post office, then
they are attended to first by permitting them to join a special queue. In such a case,
the postal worker attends to them immediately before resuming their normal service
of mail delivery. Modify the system to implement this addition in service
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