C++ 快速排序

std::list sequential_quick_sort(std::list input)
{
    if(input.empty())
    {
        return input;
    }
    std::list result;
    result.splice(result.begin(), input, input.begin());
    T const& pivot = *result.begin();
    auto divide_point = std::partition(input.begin(), input.end(), [&](T const& t){return t < pivot;});
    std::list lower_part;
    lower_part.splice(lower_part.end(), input,input.begin(), divide_point());
    auto new_lower(sequential_quick_sort(std::move(lower_part)));
    auto new_higher(sequential_quick_sort(std::move(input)));
    result.splice(result.end(), new_higher);
    return splice(result.begin(), new_lower);
    return result;
}```