Question

C++ ( Please Read)

Write a function prototype and a function definition called getTotal that receives an  array of type double, the number of rows in the array.

It returns the total of all elements in the array.

Answer 1

// function prototype
double getTotal(double arr[], int size);

// function definition
double getTotal(double arr[], int size) {
    double sum = 0;
    for (int i = 0; i < size; ++i) {
        sum += arr[i];
    }
    return sum;
}