AiSD Horner final?

#include <iostream>
#include <ctime>
#include <iomanip>
#include <cstdlib>
using namespace std;

int main(int argc, char** argv)
{
    clock_t start, stop;
    double czas;
    cout<<"Podaj wielkosc tablicy : ";
    int n;
    cin>>n;
    srand(time(0));
    double x=0.1;
    int *a;
    a = new int [n];
    int v=0;
    start=clock();
    for (int i=0; i>n; i++){
        a[i]=rand()/double(RAND_MAX);
    }
    for (int i=n; i>=0; i--){
        v=+a[i]+v*x;

    }
    stop=clock();
    czas = double(stop-start)/CLOCKS_PER_SEC;

    cout<<"Wynik to = "<< v <<endl<<"czas to= "<< std::setprecision(20)<<czas<<endl;
    return 0;
}