Re: Working for Food and Accommodation.
I assume you mean a working holiday visa. That doesn't exist generally the way it does in other countries.
There's a program with Canada/for Canadian citizens (aged 18-30 or 35) though. And of course technically, EU/EFTA (some exceptions) citizens can live and work in Switzerland without restrictions.
That being said, as it's not a very common thing here, I'm guessing there's not a massive number of "work for food/room" opportunities available to begin with. Others might know more about where to find such jobs.