Function parameters in C++ - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a function that takes an integer parameter named x.

C++

void printNumber([1]) {
    std::cout << x << std::endl;
}

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Aint

Bx int

Cint x

Dnumber

Attempts:

3 left

💡 Hint

Common Mistakes

Writing the parameter name before the type.

Omitting the parameter name.

Using a variable name without a type.

The correct way to declare a function parameter is by specifying the type followed by the variable name, like int x.

2fill in blank

medium

Complete the function call to pass the integer 5 to the function printNumber.

C++

printNumber([1]);

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Aint

Bx

C"5"

D5

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a string instead of an integer.

Passing the parameter name instead of a value.

When calling a function, you pass the actual value. Here, 5 is an integer literal.

3fill in blank

hard

Fix the error in the function definition by completing the parameter list correctly.

C++

void add([1]) {
    std::cout << a + b << std::endl;
}

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Aa int, b int

Bint a, int b

Cint a b

Dint a; int b

Attempts:

3 left

💡 Hint

Common Mistakes

Using semicolons instead of commas.

Writing parameter names before types.

Omitting commas between parameters.

Function parameters must be separated by commas, each with a type and name: int a, int b.

4fill in blank

hard

Fill both blanks to declare a function that takes a float and a char parameter.

C++

void process([1], [2]) {
    // function body
}

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Afloat value

Bint number

Cchar letter

Ddouble data

Attempts:

3 left

💡 Hint

Common Mistakes

Using int instead of float.

Using double instead of float.

Mixing up parameter types.

The function parameters are float value and char letter to match the required types.

5fill in blank

hard

Fill all three blanks to create a function that returns the sum of two integers and one float.

C++

auto sum([1], [2], [3]) {
    return a + b + c;
}

Drag options to blanks, or click blank then click option'

Aint a

Bint b

Cfloat c

Ddouble d

Attempts:

3 left

💡 Hint

Common Mistakes

Using double instead of float.

Using wrong parameter names.

Missing parameter types.

The function parameters are int a, int b, and float c to match the sum operation.