Why all classes are move constructible

Question

Hi

Refer code below :
Why all these classes are move constructible ?
https://code.sololearn.com/c9v2UHt8WUN4/?ref=app

Answer 1

According to : https://en.cppreference.com/w/cpp/types/is_move_constructible

"Types without a move constructor, but with a copy constructor that accepts const T& arguments, satisfy std::is_move_constructible."

Answer 2

Thanks