CSC10 – Introduction to Programming Logic
Fall 2016
Homework Assignment 3
Name: Plz don't share :(
Due Date: 10/5/2016 (handed in or uploaded to SacCT by start of class)
1. Fill in the blanks: You can pass in information as arguments (s) when calling a module. This
information is received by parameter variable(s) within the module.
2. A variable that is restricted to the current module is a local variable.
3. A __________ is the part of a program in which a variable can be accessed.
A. Declaration Space
C. Area of Visibility
B. Scope
D. Transcendent Accessor Region of Doom
4. A variable that is visible to every module in a program is a _________ variable.
A. Local
C. Global
B. Macro
D. Universal
5. When a module ends/returns, where does the program resume execution?
At the line immediately after the Call statement that invoked the module.
6. Given a module with the header PrintGreeting(String name), write a single line of pseudocode to
invoke the module with your preferred name as the argument.
PrintGreeting(“Cthulhu, Destroyer of Donuts”)
7. If you declare a variable within a module, can that variable be accessed in another module?
Why/why not?
No, local variables are restricted in scope to the current module only.
8. Why will this pseudocode not work? (Not a trick question. It really won't work.)
Module getName() Declare String name
Input name
End Module
Module Main()
Call getName()
Display “You entered: “ & name
End Module
<< Name is not in Main's scope.
9. Write a module that accepts a total price and a discount. The module should display the original
price, the amount saved, and the final price. Expect the discount to be a real number (e.g., 20% = 0.20)
Module calc(Real price, Real discount)
Declare Real amtSaved, finalPrice
Set amtSaved = price * discount
Set finalPrice = price - amtSaved
Display “You saved “ & amtSaved & “ on your purchase of “ & finalPrice
End Module
10. Write a Main module that asks the user for a total price and discount, then calls the module you
wrote for Question 9 using the information given by the user.
Module Main()
Declare Real totalPrice, discount
Input totalPrice
Input discount
Call calc(totalPrice, discount)
End module
11. Complete the desk check. I finished the first line for you. Assume the user enters 200 at the first
Input statement and 300 at the second Input statement.
Remember: in real life, never use floating-point (Real) numbers for financial information! This is just
an exercise.
Program
Line #
balance
amount
Declare Real balance 1
?
?
Declare Real amount
2
?
?
Set balance = 2000.0
3
2000
?
Display “How much would you like to withdraw?”
4
2000
?
Input amount
5
2000
200
Set balance = balance – amount
6
1800
200
Display “How much would you like to deposit?”
7
1800
200
Input amount
8
1800
300
Set balance = balance + amount
9
2100
300