Week 3 Tutorial Quiz

What is

var = 29 * 24 - 39 / 23 + 94

• Statement

• Expression

• Neither

• Both

Answer explanation

A statement is considered an expression

What is the output from the call strange(3,100)?

• 3

• 4

• 5

• Error!

• None of the above

Answer explanation

The function stops at the first return so the second and third is unreachable

What is the output from the call f(1,1)?

• 4

• 6

• 8

• Error!

• None of the answers

Answer explanation

g(a, b) returns None which cannot be added together

What is the output from the call twice(twice(twice(2)))?

• 8

• 16

• twice(2) + twice(2)

• Error!

• None of the answers

Answer explanation

The output of one twice() becomes the input of the other twice()

What will be printed out from executing f(5) and g(5) ?

• f(5) prints 'Here'

  g(5) prints nothing

• f(5) prints nothing

  g(5) prints 'There'

• f(5) prints 'Here'

  g(5) prints 'There'

• f(5) prints 'There'

  g(5) prints nothing

• None of the answers

Answer explanation

For g(5), since 5 < 10, the else is not reached. And since 5 < 4 is false, nothing is printed!

What printed out from f(2), f(5), f(15)?

• 'There', 'Where', 'Here'

• 'Here', 'There', 'Where'

• 'Here', 'There', 'There'

• 'Here', 'Where', 'There'

• 'There', 'Where', 'Where'

What printed out from executing g(2)?

• 'Here'

• 'There'

• 'Where'

• 'Here' and 'There'

• 'Here' and 'Where'

What printed out when calling pain()?

• True

• 'True'

• False

• 'False'

• 'neither True nor False'