typedef double (*price_fn)(void* obj); typedef double (*bulk_price_fn)(void* obj, unsigned int quantity);

// Compares the price of obj1 with obj2 // Returns a negative number if the price of obj1 is less than the price of obj2 // Returns a positive number if the price of obj1 is greater than the price of obj2 // Returns 0 if the price of obj1 is equal to the price of obj2 int compare_by_price(Object* obj1, Object* obj2) { // IMPLEMENT THIS return 0; }

// Compares the quantity of obj1 with obj2 // Returns a negative number if the quantity of obj1 is less than the quantity of obj2 // Returns a positive number if the quantity of obj1 is greater than the quantity of obj2 // Returns 0 if the quantity of obj1 is equal to the quantity of obj2 int compare_by_quantity(Object* obj1, Object* obj2) {

}

- We are not allowed to use any libraries besides the math.h

- This is C programming language