a$.$What is the appropriate data structure that can be used in this case study to store the products? Justify your answer.

b$.$ What are the operations of the chosen data structure that allow the implementation of purchase and sale transactions?

c$.$ Assume that the following products are added and removed to$/$from the chosen data structure $($identified in subquestion $1.$a$)$ in the following order.

Add Product$1$

Add Product$2$

Add Product$3$

Remove a Product

Add Product$4$

Remove a Product

Add Product$5$

Add Product$6$

Show a snapshot of the chosen data structure after every operation.

d$.$ What is the appropriate data structure that can be used in this case study to manage the customers at the checkout? Justify your answer.

e$.$ What are the operations of the chosen data structure that allow a fair way to manage the checkout?

f$.$ Assume that the following customers are added and removed to$/$from the chosen data structure $($identified in subquestion $1.$d$)$ in the following order.

Add Client$1$

Add Client$2$

Add Client$3$

Add Client$4$

Add Client$5$

Add Client$6$

Remove a Client

Remove a Client

Show a snapshot of the chosen data structure after every operation.

g$.$ What is the appropriate data structure that can be used in this case study to manage the suppliers? Justify your answer.