write a c/c++ program that handles multiple (sequential)
Each file maintains a set of data as follows:
1 Inventory file
- product category ID, product ID, product name, model size, cost, price, current quantity
2. Category file
- Product category ID, category name
3. Customer file
- customer ID, customer name
4. Salesperson file
- Salesperson ID, salesperson name, product category ID, commission rate(in %)
5. Sales transaction file
- date, time, customer ID, salesperson ID, type of transaction(buy/sell), quantity
6. Supplier file
- supplier ID, supplier name
a) the prog should allow basic operation for each file:
insert, delete, update(edit), and list items by IDs/date+time
the program sould provide the following summary :
- the daily summaries of the number of each items sold out sorted by the total price
- the daily summaries of the number of each items biught in sorted by the total cost
- list of the top ten customer who made the purchases from the company, daily
- the amount of commission earned by each salesperson in a day
- the company overall monthly income, expense
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