АБ
#include <conio.h>
#include <math.h>
#include <cstdlib>
using namespace std;
int main()
{
const int N = 15;
float Y[N], g=1, gm;
for (int i=0;i<N;i++)
{
Y[i]= rand() %100;
cout<<Y[i]<<endl;
}
int A;
cout<<"Enter A: ";
cin>>A;
for (int i=0;i<N;i++)
if(Y[i]<A)
g*=Y[i];
gm=pow(g,1.0/N);
cout<<"Geometric Mean= "<<gm;
}



