Functional Programming Quiz 2

Which of the following languages specifically use a functional programming paradigm?

• Python

• Haskell

• Java 8

• Delphi

Which of the following is a type within the typeclass Num?

• Char

• Bool

• Double

• String

What is the following is the function declaration for SumOfSq? The colour codes represent the arguments.

• SqOfDiff : : Integer -> Integer -> Integer

• SqOfDiff : : Integer -> Integer -> Integer

• SqOfDiff : : Integer -> Integer -> Integer

This question is based on function isEqual, that finds whether two numbers are equal or not. What is the function declaration?

• isEqual : : Bool ->Int -> Int

• isEqual : : Int -> Bool

• isEqual : : Int -> Int -> Bool

This question is based on function isEqual, that finds whether two numbers are equal or not. What is the function code?

• isEqual a b = a == b

• isEqual a b == a = b

• isEqual a b = a = b

• isEqual a ==b = a b

This question is based on functions f(x) = x-1 and g(x) = x^2-1.
What is g o f?

• x^2

• x^2 - 2x

• x^2-x

• x^2+2x

This question is based on functions f(x) = x-1 and g(x) = x2-1.
What is g o f (3)?

• 1

• 3

• 5

• 9

What is the result obtained when this code is executed?

• 15

• 25

• 45

• 65

What is the result obtained when this code is executed?
num = [10, 20, 30, 40]

add3 a = a + 3

map (add3) num

• [13, 20, 30, 40]

• [13, 23, 33, 43]

• 100

• 103

What is the result obtained when this code is executed?
num = [3, 8, 11, 15, 20, 22]

check n= n `mod` 2 == 0

filter (check) num

• [8, 20, 22]

• [3, 11, 15]

• [3, 8, 11, 15, 20, 22]