note: Do have a look and vote for reopen. I have edited in hope to make the inquires clearer.
Based on the question below, I have finished Part 1 of the Sales System. Going into Part 2, there are things that I don't really get.
Problem Statement You are hired to develop a sales system for cinema ticket and a simulator for queuing. The business rules are listed below: Part 1 Sales System (13 marks): All tickets are priced at RM10 per person. There are 3 types of customers: Non-member: No annual fee, do not enjoy any discount or benefit. Gold member: RM10 annual fee, enjoy a 10% discount for every ticket purchased. Platinum member: RM50 annual fee, enjoy a 20% discount for every ticket purchased and get a free ticket for every 5 tickets purchased. Part 2 Queue Simulator (2 marks) There are 2 sale counters serving one queue. Your program may start (and loop) by asking the user to choose one of the following 3 options: A customer joins the queue. Counter 1 takes the next customer. Counter 2 takes the next customer. For every option selected, your simulator should list following: The queue. The customers already served by the counters. The customers currently being served by the counters.
What is the correct algorithm to tackle Part 2?
My ideas :
1. First is, Save all records into a file so that two instances of the program can access the file. Is this possible?
2. Second, create an "in-program" queue - where only an instance of the program is run and queue could be a simple array or LinkList. What I don't get is, when/how to create and store the customer on that queue? can we have somewhere in the program, an interrupt mechanism to prompt for adding a customer into queue while it is running on different sections of the program?
is there any other method/algorithm?