Function parameters - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a function that takes one integer parameter.

C

void printNumber([1] num) {
    printf("%d\n", num);
}

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

Aint

Bchar

Cfloat

Ddouble

Attempts:

3 left

💡 Hint

Common Mistakes

Using a floating-point type like float instead of int.

Using char which is for single characters.

The function parameter should be of type int to accept an integer.

2fill in blank

medium

Complete the function call to pass the variable correctly.

C

int value = 10;
printNumber([1]);

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A&value

Bvalue&

C*value

Dvalue

Attempts:

3 left

💡 Hint

Common Mistakes

Passing the address of the variable when the function expects a value.

Using pointer dereference incorrectly.

The function expects an integer value, so pass the variable value directly.

3fill in blank

hard

Fix the error in the function definition to accept two integer parameters.

C

void addNumbers(int a, [1] b) {
    printf("%d\n", a + b);
}

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

Afloat

Bint

Cchar

Ddouble

Attempts:

3 left

💡 Hint

Common Mistakes

Using different types for parameters that should be the same.

Using floating-point types when integers are expected.

Both parameters should be of type int to add two integers.

4fill in blank

hard

Fill both blanks to declare a function that returns the sum of two integers.

C

[1] add([2] a, int b) {
    return a + b;
}

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Aint

Bfloat

Cvoid

Ddouble

Attempts:

3 left

💡 Hint

Common Mistakes

Using void as return type when a value is returned.

Using different types for parameters.

The function returns an int and both parameters are int types.

5fill in blank

hard

Fill all three blanks to declare and call a function that multiplies two floats and returns the result.

C

[1] multiply([2] x, [3] y) {
    return x * y;
}

float result = multiply(2.5f, 4.0f);

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

Afloat

Bint

Cdouble

Dvoid

Attempts:

3 left

💡 Hint

Common Mistakes

Using int or double instead of float.

Using void as return type when a value is returned.

The function returns a float and both parameters are float to multiply decimal numbers.