Best Adapter For Laptop In Europe I Have An HP Laptop And Im Wondering What I Need To Do To Use It In Europe? Voltage Converter Or Adapter?

I have an HP laptop and im wondering what i need to do to use it in europe? voltage converter or adapter? - best adapter for laptop in europe

OK, so I know I need a voltage converter and adapter or a? because the bank told me that rotates on its own and only need the adapter so that fair?
same question for my digital camera (for when I upload)