// ********** FactoryDemo.cpp **********
#include <iostream>
#include <time.h>
using namespace std;

class Product { public: virtual void operation() = 0; };

class ConcreteProduct1 : public Product { public: void operation() {} };

class ConcreteProduct2 : public Product { public: void operation() {} };

class Factory {
  public:
    static Product* createProduct(int code) {
      switch (code) {
        case 1: return new ConcreteProduct1();
        case 2: return new ConcreteProduct2();
      }
      return 0;
  }
};
const int MAX = 1000;
int main() {
  hrtime_t t1 = gethrtime();
  for (int i=0; i<10*MAX; i++) {
    Product* product1 = Factory::createProduct(1);
    Product* product2 = Factory::createProduct(2);
    for (int j=0; j<MAX; j++) {
      product1->operation();
      product2->operation();
    }
  }
  hrtime_t t2 = gethrtime();
  cout << (t2-t1)/1000000 << " ";
  return 1;
}