Program Nilai tertinggi-Terendah dan rata-rata pada MinGw

#include <iostream.h>
#include <conio.h>

void main()
{
  int n,x;
  float d,r,j=0,min,max;
  clrscr();
  cout << "Ada berapa data ? "; cin >> n;
  for(x=1;x<=n;x++)

  {
  cout << "Data ke-" << x << " : "; cin >> d;
  j += d;
  if(x==1){
  min = max = d;
  } else {
  if(d<min){
   min = d;
  }
  if(d>max){
   max = d;
  }
  }
  }
  r = j/n;
  cout << "----------------- " << endl;
  cout << "Nilai tertinggi = " << max << endl;
  cout << "Nilai terendah = " << min << endl;
  cout << "rata-rata = " << r << endl;
  getch();
}