include iostream using namespace std int main double array 20 cout Ent

#include <iostream>
using namespace std;

int main() {
    double array[20], a;
    cout << "Enter 'a':" << endl;
    cin >> a;
    for (int x = 0; x <= 19; ++x) {
        array[x] = 1 / (1 + a * (x + 1));
    }

    for (int x = 0; x <= 19; ++x) {
        cout << "array[" << x << "] - " << array[x] << endl;
    }
    return 0;
}