Comment: Re:are those problems NP? (Score 2) 409
While P/NP is indeed pretty way offtopic here, P vs. NP doesn't necessarily apply solely to decision problems. Furthermore, many problems can be rephrased as decision problems; e.g. Does the cannonball need more than 10 second to complete its flight?
For a traditional P/NP example: the traveling salesman problem is about finding the shortest path, which is also not a decision problem.