sicily 1926

class NumCal {
    int *p;    // 数组首地址
    int size; // 数组size
public:
    int sum(); // 计算数组元素和
    NumCal(); // 构造函数
    NumCal(int *new_p, int new_size); // 构造函数
};


int NumCal::sum()
{
	int ans = 0;
	for (int i = 0; i < size; i++)
		ans += p[i];
	return ans;
}

NumCal::NumCal()
{
	p = 0;
	size = 0;
}

NumCal::NumCal(int *new_p, int new_size)
{
	p = new int[new_size];
	size = new_size;
	for (int i = 0; i < size; i++)
		p[i] = new_p[i];
}