C++从键盘读入数组并存储

C++从键盘读取任意长度的数组，现总结如下：

//读取指定长度的数组
int main()
{
	int n = 0;
	cin >> n;
	vector<int> p(n);
	for (int i = 0; i < n; i++) {
		cin >> p[i];
	}

	for (int i = 0;i < p.size();i++)
	{
		cout << p[i];
	}
	cout << endl;
	system("pause");
}

//从键盘读入任意长度的数组
int main()
{
	vector<int>nums;
	int num = 0;
	do {
		cin >> num;
		nums.push_back(num);
	} while (getchar() != '\n');

	for (int i = 0;i < nums.size();i++)
	{
		cout << nums[i];
	}
	cout << endl;
	system("pause");
	return 0;
}

//键盘输入字符串类型的整数，然后将其输出数组中
int main()
{
	string str, temp;
	getline(cin, str);
	int i = 0;
	vector<int> p;
	stringstream input(str);
	while (input >> i) {
		p.push_back(i);
	}
	for (int i = 0;i < p.size();i++)
	{
		cout << p[i];
	}
	cout << endl;
	system("pause");
	return 0;
}