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摘要：Network of SchoolsDescription A number of schools are connected to a computer network. Agreements have been developed among those schools: each school maintains a list of schools to which it distributes software (the “receiving schools”). Note that if B is in the distribution list of school A, the.. 阅读全文

摘要：The Accomodation of StudentsProblem DescriptionThere are a group of students. Some of them may know each other, while others don't. For example, A and B know each other, B and C know each other. But this may not imply that A and C know each other.Now you are given all pairs of students who know 阅读全文