7 atestat

#include <iostream>
#include <fstream>

using namespace std;

int ncif(int x) {
    int c = 0;
    while (x) {
        c++;
        x /= 10;
    }
    return c;
}

int main() {
    ifstream f("atestat.in");
    ofstream g("atestat.out");
    int x, max = -1, min = 9999, n;
    f >> n;
    for (int i = 1; i <= n; i++) {
        f >> x;
        if (x % 2)
            g << ncif(x) << ' ';
        if (x < min)
            min = x;
        if (x > max)
            max = x;
    }
    g << endl;
    if (!min && max)
        g << max;
    else
        if (min && !max)
            g << min;
        else {
            while (min != max) {
                if (max > min)
                    max -= min;
                else
                    min -= max;
            }
            g << max;
        }
    f.close();
    g.close();
}