Fix ruby version.
Break lines.
Rename method.
Use guard condition.
Use any?
Assign two variables at once.
Remove guard condition.
Introduce Rectangle class.
Introduce rec method.
Introduce create_array method.
Introduce all_points method.
Rename method.
Introduce include? method.
Rename method.
Introduce include_this_point? method.
Avoid same operation.
Refactoring spec.
Remove same_size? method.
Make spec readable.
Use method instead of literal.