#include <iostream>
using namespace std;
#include <iostream>
using namespace std;
int i;
int Sommapos=0, Sommaneg=0;
int contapos=0, contaneg=0;
int x;
int main() {
cin>>i;
for(i>=1;i<=10;i++);
{ cin>>x;
if (x>0) {Sommapos= Sommapos+x; contapos=contapos +1;}
if (x<0) {Sommaneg= Sommaneg+x; contaneg=contaneg +1;}
}
if(contapos!=0) { cout<<"Media valori positivi="<<(float)Sommapos/contapos<<endl;}
else {cout<<"Media numeri positivi non calcolabile!!"<<endl;}
if(contaneg!=0) { cout<<"Media valori negativi="<<(float)Sommaneg/contaneg<<endl;}
else {cout<<"Media numeri negativi non calcolabile!!"<<endl;}
// your code goes here
return 0;
}
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