moje.rb

 def count_customers(customer_id, order_count, totals, repeat_customers, new_customers, newly_promising_customers, newly_loyal_customers)
    total_orders = totals.fetch(customer_id, 0)
    
    if total_orders == 1 || order_count == total_orders
      new_customers += 1
    elsif total_orders == 2
      newly_promising_customers += 1    
    elsif (total_orders - order_count) < 4
      newly_loyal_customers += 1
    elsif order_count != total_orders
      repeat_customers += 1
    end
    
    [repeat_customers, new_customers, newly_promising_customers, newly_loyal_customers]
 end

sledz.rb

 def count_customers(customer_id, order_count, totals, repeat_customers, new_customers, newly_promising_customers, newly_loyal_customers)
   total_orders = totals.fetch(customer_id, 0)
   if total_orders == 1
     new_customers += 1
   else
     if total_orders > 3
       newly_loyal_customers += 1 if (total_orders - order_count) < 4
     else
       newly_promising_customers += 1
     end
     order_count == total_orders ? new_customers += 1 : repeat_customers += 1
   end
   [repeat_customers, new_customers, newly_promising_customers, newly_loyal_customers]
 end