07 - F Basic.md

✨ F Basic ✨

Question 1

1. Define a function named square, that when passed a floating-point value, returns its square.
2. Define a function named isOdd, that when passed an integer value, returns true if it's odd, false otherwise.
3. Define a function named countTrueV1, that when passed two boolean values, returns the number of values that are true.
4. Define a function named countTrueV2, that when passed three boolean values, returns the number of values that are true.
5. Define a function named lowest, that when passed two values of type int, returns the minimum of the three numbers. Do not use the built-in min function!

Question 2

Assuming the following definition of a function bar:

float bar(float a, float b) {
    return a * b + a;
}

What does the expression bar(bar(5, 7), 0.2) evaluate to?

Question 3

Define a function called circumference, that when passed in a diameter d, returns the circumference of a circle with diameter d.

Use the built-in PI variable/constant to get the value of pi.

Question 4

Define a function that takes in two integer values a and b, and prints out all the even numbers between a and b inclusive.

Question 5

Given the following definition of a function baz:

float baz(int num) {
    return num * 10.0;
}

Determine if the following function calls are valid. Explain why or why not.

• baz(20.0/5);
• baz(100/5);
• baz(baz(5));

Question 6

Given the following fragment of code:

foo(3, 'H', true);

int a = foo(4, 'b', false);
int b = foo(a, 'C', false);

Write a function signature for the function foo.