C++之输入任意长度的数组

#include
using namespace std;
int main()
{
    vectora;
    int num;
    while (cin >> num)
    {

        a.push_back(num);
        if (cin.get() == '\n')
            break;
    }
    for (int i = 0; i < a.size(); i++)
        cout << a[i] << ' ';
    return 0;
}