Program Description

You will work in a team of two to write a program using Python to maintain the inventory for a

company. Your program will read and process commands from the standard input until end-of-file.

Commands consist of a single character, possibly followed by parameters.

The commands you are to implement are of the form, which one or more spaces between parameters:

A item number cost

S item number price

P

O

V type

You will maintain the data using three parallel arrays. One array is for the item descriptions, one for

the number of the item in the inventory, and the third is for the cost of the item.

1. A Add command. Read the item description, number that will be added to the inventory, and

the cost of that item. If the item already exists in the inventory, ignore the cost that was read in

and instead, add "number" to the number already in the inventory. If the item isn't already in the

inventory, then add it unless the arrays are already full. In all cases, print a message.

2. S Sell command. Read the item description, number to be sold, and the price of the item. If the

item doesn't exist in the inventory, print a message. Otherwise, if "number" is greater than or

equal to the number of that item currently in the inventory, sell all of that item in the inventory

and then delete that item from the inventory. Otherwise, reduce the inventory for that item by

"number". If items are sold, then calculate the profit from the sale and add it to the total profit.

To calculate the profit, take the number of items sold times the difference between the price and

cost.

3. P Print command. Print the inventory list and the total value of everything in the inventory.

4. O Order command. Sort the arrays by name using the Selection sort covered in class (and in the

book). There is no output for this command.

5. V Average Command. If type is 'C', then calculate and print the average cost of the inventory

items. If the type is 'I', then calculate and print the average of the number of items in the

inventory. If there are no items in the array, we'll take the average to be 0.

At the end of the program, print the total profit from all the sales.

You do not need to check for bad commands. Assume all input commands are correct. Also, assume

number, cost, and price will always be greater than 0. See the sample output for the exact wording and spacing for the output.

Requirements:

1. Declare and use the following parallel arrays.

description[MAX_ITEMS];contains strings

inventory[MAX_ITEMS]; contains integers

cost[MAX_ITEMS]; contains floats

2. You must show the floats with two decimal places.

3. You must have a Find function and use it in appropriate places. It must have the following

prototype. It must return the index where the name is found or -1 if the name isn't in the

names array. No printing is allowed in this function.

def Find(const string items[], int num, string item);

4. So that everyone's output matches the output:

a. When Adding, add it to the end of the arrays

b. When Deleting, replace the deleted data with the arrays last data. This is to replace

the "empty" cell that is created with the data from the last "good" data in the array.

5. You must use a Selection Sort for the sort. It must be the algorithm from the book, modified

for this program, not one you make up or get from the internet.

6. Both persons in the group must do their fair share of work for the program. The header block

at the top must contain each person's estimate of what percent each member contributed to the

completion of the program. The percentages must add up to one hundred. For example:

Sally Smith: Sally - 60%, J Jacobs - 40%

John Jacobs: Sally S - 50%, John - 50%

Expect to lose up to 3 points on the program if this is not done.

Students not doing their share can expect their grade lowered.

Sample Input:

V C

V I

P

S Pencil 5 1.40

O

A Pencil 10 1.16

A Pen 20 2.19

A Cheetos 10 4.18

V C

V I

P

O

P S Pencil 5 1.40

S Cheetos 15 5.00

S Dishsoap 15 3.22

P

A Pen 15 2.59

A Cheetos 20 5.64

A Dishsoap 15 2.88

A Snickers 250 1.12

A Crackers 40 3.18

A Soup 10 2.19

P

V C

V I

O

S Snickers 300 2

P

Corresponding Output:

Average cost is: $0.00

Average inventory is: 0.00

Inventory List:

Total Inventory value: $0.00

Can't sell Pencil. Not in stock.

Item Pencil added.

Item Pen added.

Item Cheetos added.

Average cost is: $2.51

Average inventory is: 13.33

Inventory List:

Pencil 10 1.16

Pen 20 2.19

Cheetos 10 4.18

Total Inventory value: $97.20

Inventory List:

Cheetos 10 4.18

Pen 20 2.19

Pencil 10 1.16

Total Inventory value: $97.20

Sold 5 of Pencil.

Only have 10 of Cheetos so all are sold. Item removed from

inventory.

Can't sell Dishsoap. Not in stock.

Inventory List:

Pencil 5 1.16

Pen 20 2.19

Total Inventory value: $49.60

15 added to item Pen.

Item Cheetos added. Item Dishsoap added.

Item Snickers added.

Item Crackers added.

Item Soup not added. No more room for items.

Inventory List:

Pencil 5 1.16

Pen 35 2.19

Cheetos 20 5.64

Dishsoap 15 2.88

Snickers 250 1.12

Crackers 40 3.18

Total Inventory value: $645.65

Average cost is: $2.69

Average inventory is: 60.83

Only have 250 of Snickers so all are sold. Item removed from

inventory.

Inventory List:

Cheetos 20 5.64

Crackers 40 3.18

Dishsoap 15 2.88

Pen 35 2.19

Pencil 5 1.16

Total Inventory value: $365.65

The Total Profit is: $229.40

Normal Termination of Program 4.