ProcedurProgramavimas_2.02

#include <iostream>
#include <iomanip>
using namespace std;
int main() {
double n, z[11], sum=0, q=0;
cin>>n;
for(int i=0;i<n;i++)
{
  cin>>z[i];
    if(z[i]<0){
  sum+=z[i];
        q+=1;
    }
}
    if(sum==0){cout<<"NO"<<endl;}
    else{
cout<<fixed<<setprecision(2)<<sum/q<<endl;
    }
return 0;
}