windows programming

i read SICP, learned haskell, and have now realized that in order to get a real job i need to learn some windows programming. nobody will hire you just because you understand loeb.

what's the best languages that are used today?

The question is asking for a generalized solution to the problem.
No it isn't.
In which case no such solution exists.
Yes it does. Simply check all 2ⁿ combinations of lamps.