Răspuns:
#include <iostream>
#include <iomanip>
using namespace std;
int n, a, i, nou;
double s, ma;
int main()
{
cin >> n;
for (i=1; i<=n; i++)
{
cin >> a;
s=s+(1.0*1)/(1.0*a);
}
ma=(1.0*n)/s;
nou=(int)(ma*100);
ma=(1.0*nou)/100;
cout << fixed << setprecision(2) << ma;
}
Explicație:
