Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.
NP中的每个问题都可以归约为可满足性问题,这是计算复杂性理论的基石。
教师在学校里不是为了强加某些观念或形成某些习惯,而是作为社区的一员,选择影响孩子的因素,并帮助他适当地回应这些影响。
The general will is always right, but the judgment which guides it is not always enlightened.
In peace, sons bury their fathers. In war, fathers bury their sons.
The only thing that makes life possible is permanent, intolerable uncertainty; not knowing what comes next.