两题皆来自<<Discrete Mathematics and its applications) 请高手们指导...orz 1.Each inhabitant of a remote village always tells the truth or always lies. A villager will only give a "yes" or a "no" response to a question a tourist asks. Suppose you are a tourist visiting this area and come to a fork in the road. One branch leads to the ruins you want to visit; the other branch leads deep into the jungle. A villager is standing at the fork in the road. What one question can you ask th villager to determine which branch to take? 2.Steve would like to determine the relative salaries of three coworkers using two facts. First, he knows that if Fred is not the highest paid of the three, then Janice is. Second, he knows that if Janice is not the lowest paid, then Maggie is paid the most. Is it possible to determine the relative salaried of Fred,Maggie, and Janice from what Steve knows? If so,who is paid the most and who the least? Explain your reasoning. -- 座右铭: 每天进步一点点~~ --

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