Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.
互相有爱意,交往中也相互得利。这是墨子很典型的思想主张,也是墨家学派对人类社会最美好的期望。
"Happiness is not something ready-made. It comes from your own actions."
I’m not a guy that’s going to let my love for my fans down.
你心碎了,就这样。没有什么好抱怨或指责的。你只要需要足够的幸运来找到欣赏你的人。