#include<iostream.h>#include<iomanip.h>#include<math.h>void main(){float i,n,s,ma,k,a[20];cout<<"n=";cin>>n;
ma=0;for(i=0;i<n;i++){cout<<"a["<<i<<"]=";cin>>a[i];s+=a[i];}
ma=s/n;a[n]=ma;cout<<"vectorul este:"<<endl;for(i=0;i<n+1;i++)cout<<a[i]<<" ";cout<<endl;
}