byte sized c++

Functions

7.2 - Function return values

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A function can return a value after it finishes. The type of the return value must be specified at the beginning of the function and the return statement on the function should have a value of the matching type. For example, these two functions have the same name but a different return type and parameter type:

int divide(int a, int b) {
    return a / b;
}

float divide(float a, float b) {
    return a / b;
}

So those functions have different return values, for example in this situation:

int main()
{
    std::cout << divide(5, 2) << std::endl;
    // Adding .0f makes them floats
    std::cout << divide(5.0f, 2.0f) << std::endl;
}

The first divide will print out 2 since it is an integer division where the remainder is discarded. The second one will print out 2.5 since it is a float division.

Your task is to create two functions called add, one which adds integers together, and another one which combines two strings together.

Sample input code

#include <iostream>
#include <string>

int main()
{
    std::cout << add(4, 5) << std::endl;
    std::cout << add("4", "5") << std::endl;
}

Sample output

9
45