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  1. #include <iostream>
  2. #include <vector>
  3. #include <memory>
  4.  
  5. class Building {
  6.   public:
  7. 	virtual int getPower() = 0;
  8. 	virtual int getWater() = 0;
  9. 	virtual ~Building() {}
  10. };
  11.  
  12. class IceWell : public Building {
  13.   public:
  14. 	virtual int getPower() {return -100;}
  15. 	virtual int getWater() {return 50;}
  16. };
  17.  
  18. class SolarArray : public Building {
  19.   public:
  20. 	virtual int getPower() { return 150; }
  21. 	virtual int getWater() { return 0; }
  22. };
  23.  
  24. int main()
  25. {
  26. 	std::vector<std::shared_ptr<Building>> inventory;
  27. 	inventory.emplace_back(new IceWell);
  28. 	inventory.emplace_back(new SolarArray);
  29. 	inventory.emplace_back(new IceWell);
  30. 	inventory.emplace_back(new SolarArray);
  31.  
  32. 	int total_power = 0;
  33. 	int total_water = 0;
  34. 	for (auto building : inventory)
  35. 	{
  36. 		total_power += building->getPower();
  37. 		total_water += building->getWater();
  38. 	}
  39.  
  40. 	std::cout << "Total power: " << total_power << "\n";
  41. 	std::cout << "Total water: " << total_water << "\n";
  42.  
  43. 	return 0;
  44. }
Success #stdin #stdout 0s 3432KB
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Standard input is empty
stdout
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Total power: 100
Total water: 100
https://ideone.com/xvYFXp
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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