What is the type of "auto var = {condition} ? 1 : 1.0" in C++11? Is it double or int?

In C++11 what are the types of x and y when I write this?

int main()
{
    auto x = true ? 1 : 1.0;
    auto y = false ? 1 : 1.0;
    std::cout << x << endl;
    std::cout << y << endl;
    return 0;
}