#include <vector>

template<class... Types> auto init(size_t size, Types... args) {
    if constexpr (sizeof...(args) == 1) {
        return std::vector(size, args...);
    } else {
        return std::vector(size, init(args...));
    }
}

template<class T, class...Types> auto
initialize_vector(T value, Types...args) {
    return init(args..., value);
}