基于vip等级的策略模式，我理解的是否正确呢？

Question

class VipStrategy {
public:
    //领取每日礼物
    virtual int get_daily_gift() = 0;
    virtual ~VipStrategy() = default;
};

class Vip1 : public VipStrategy {
public:
    int get_daily_gift() override {
        return 5000;
    }
};

class Vip2 : public VipStrategy {
public:
    int get_daily_gift() override {
        return 10000;
    }
};

class Context {
private:
    VipStrategy* _vipStrategy = nullptr;
public:
    explicit Context(VipStrategy* vipStrategy) : _vipStrategy(vipStrategy) {
    }
    ~Context() {
        delete _vipStrategy;
    }
    void get_daily_gift() {
        this->_vipStrategy->get_daily_gift();
    }
};


int main(const int argc, const char* argv[]) {
    Context context(new Vip1());
    return 0;
}