#include
using namespace std;
int main()
{
const int ALIEN_POINTS = 150;
int aliensKilled = 10;
int score = aliensKilled * ALIEN_POINTS;
cout << "score: " << score << endl;
enum difficulty {NOVICE, EASY, NORMAL, HARD, UNBEATABLE};
difficulty myDifficulty = EASY;
enum ship {FIGHTER = 25, BOMBER, CRUISER = 50, DESTROYER = 100};
ship myShip = BOMBER;
cout << "\nTo upgrade my ship to a Cruiser will cost "
<< (CRUISER - myShip) << " Resource Points.\n";
return 0;
}