Use a member initialization list to make the GamePoints' constructor assign teamPanthers with 0 and teamWolves with 0. #include
using namespace std;

class GamePoints {
public:
GamePoints();
void Start() const;

private:
int teamPanthers;
int teamWolves;
};

GamePoints::GamePoints() :/* Your code goes here */{
}

void GamePoints::Start() const {
cout << "Game started: Panthers " << teamPanthers << " - " << teamWolves << " Wolves" << endl;
}

int main() {
GamePoints myGame;

myGame. Start();

return 0;
}