Function overloading in C++ - 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 their sum.

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 '-' instead of '+' will subtract instead of add.

Using '*' or '/' will multiply or divide, which is not correct here.

The plus sign (+) adds two integers together.

2fill in blank

medium

Complete the code to overload the add function to accept two doubles and return their sum.

C++

double add(double a, double 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 '-' instead of '+' will subtract instead of add.

Using '*' or '/' will multiply or divide, which is not correct here.

The plus sign (+) adds two double values together.

3fill in blank

hard

Fix the error in the overloaded add function that takes three integers and returns their sum.

C++

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

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

A+

B-

C*

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using different operators between variables causes errors or wrong results.

Using only one operator and missing the other will cause syntax errors.

Use '+' to add all three integers together.

4fill in blank

hard

Complete the code to overload the add function that takes two strings and returns their concatenation.

C++

std::string add(std::string a, std::string 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 operators other than '+' will cause compilation errors for strings.

Confusing with output operators like <<.

In C++, the + operator is used to concatenate std::string objects.

5fill in blank

hard

Fill all three blanks to overload the add function that takes one integer and one double, returning their sum as a double.

C++

double add([1] a, [2] b) {
    return a [3] b;
}

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

Aint

Bdouble

C+

Dfloat

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing parameter types incorrectly.

Using wrong operator instead of '+'.

The function takes an int and a double, and uses '+' to add them.