Задание 9378

#include <iostream>

using namespace std;
const int d = 6;
int main() {
 int i, j, min, minb, n, x, pr;
 min = 1001;
 minb = 1001;
 pr = 1000001;
 cin >> n;
 int a[d];
 int b[d];
 for (int i = 0; i < d; i++)
  b[i] = 1001;

 for (i = 0; i < d; i++){
   cin >> x;
   if(x % 2 == 0 && x < minb)
   {
     minb = x;
   }
   if(x < min){
    min = x;
    }
    b[i] = minb;
    a[i] = min;
 }
for (i = d; i < n; i++)
{
  cin >> x;
  if(x % 2 == 0 && x * a[0] < pr)
    pr = x * a[0];
  if (x % 2 != 0 && b[0]<1001 && x * b[0] < pr)
    pr =  x * b[0];
  for(j = 0; j < d - 1; j++)
  {
    a[j] = a[j+1];
    b[j] = b[j+1];
  }
  if(x < a[j+1])
    a[j+1] = x;
  if (x%2 == 0 && x < b[j+1])
    b[j+1] = x;
}
if(pr == 1000001)
  cout << -1;
else
  cout << pr;



 return 0;
}