#include <type_traits>
#include <vector>
template <class T>
T initialize_vector(T value) {
return value;
}
template <class T, class S, class... V>
auto initialize_vector(T value, S current_dim, V... dims) {
auto a = initialize_vector(value, dims...);
return std::vector<decltype(a)>(current_dim, a);
}