05. Average Number

#include <iostream>

using namespace std;

int main() {

    int num, number;
    cin >> num;

    int sum = 0;

    for (int i = 0; i < num; i++) {
        cin >> number;
        sum += number;
    }

    double average = 1.0 * sum / num;
    printf("%.2f\n", average);
    return 0;
}