Function declaration and definition - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a function named add that takes two integers and returns an integer.

C

int [1](int a, int b);

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

Aadd

Bsum

Ctotal

Dcalculate

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different function name than add.

Forgetting the semicolon at the end of the declaration.

The function declaration uses the function name add as specified.

2fill in blank

medium

Complete the code to define the function add that returns the sum of two integers.

C

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

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

A+

B/

C*

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using subtraction or multiplication instead of addition.

Forgetting the return statement.

The function returns the sum of a and b using the plus operator.

3fill in blank

hard

Fix the error in the function declaration to correctly declare a function named multiply that takes two integers and returns an integer.

C

int multiply(int a, int b)[1]

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A[]

B{}

C()

D;

Attempts:

3 left

💡 Hint

Common Mistakes

Using curly braces instead of a semicolon for declarations.

Using parentheses or brackets incorrectly.

A function declaration ends with a semicolon ; to indicate it is only a declaration.

4fill in blank

hard

Fill both blanks to define a function named subtract that returns the difference of two integers.

C

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

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

Asubtract

B+

C-

Dadd

Attempts:

3 left

💡 Hint

Common Mistakes

Using the plus operator instead of minus.

Using the wrong function name.

The function name is subtract and the operator for subtraction is -.

5fill in blank

hard

Fill all three blanks to define a function named max_of_two that returns the greater of two integers.

C

int [1](int a, int b) {
    if (a [2] b) {
        return [3];
    } else {
        return b;
    }
}

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

Amax_of_two

B<

Ca

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong comparison operator.

Returning the wrong variable in the if block.

The function name is max_of_two. The condition checks if a > b, then returns a if true, else returns b.