The real is always beyond words.
作战虽然讲究排兵布阵,但士兵的勇敢是其中的根本;丧葬虽然讲究礼节,但对亲人的哀思是其中的根本;一个人虽然很有学识,但思想道德、行为举止是其中的根本。
每一分都很重要,你必须为每一分而战。
Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.