Übung 7-03

#include <iostream>

using namespace std;

const int n = 3;
double a[n];
double avg (double a[n]);

int main()
{
    double b[n];
    int i = 0;
    for (; i < n; i++){
        cin >> b[i];
    }
    cout << avg(b)<< endl;
}

double avg (double a[n]){
    int i = 0;
    double x = 0;
    for (; i < n; i++){
        x += a[i];
    }
    x = x /n;
    return x;
}