Question

Write a value-returning C++ function returns the average length of an array of strings. Name the function stringsAverageLength and use the following header:

double stringsAverageLength(string array [], int n) {
}

where the parameter 'array' has 'n' strings and the return value is the average length of all of the strings in the array.

For example, if the function is called like this:

string cars[3] = { "Toyota", "Ford", "Tesla" };
cout << fixed << setprecision(2) << stringsAverageLength(cars, 3) << endl;

The output would be:

5.00

In C++. thanks!

Answer 1

#include <iostream>
#include <iomanip>
#include <string>

using namespace std;

double stringsAverageLength(string array[], int n) {
    double total = 0;
    for (int i = 0; i < n; ++i) {
        total += array[i].length();
    }
    return total / n;
}

int main() {
    string cars[3] = { "Toyota", "Ford", "Tesla" };
    cout << fixed << setprecision(2) << stringsAverageLength(cars, 3) << endl;
    return 0;
}