The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.
我是趋势的定义,我是你被解雇的原因,我是你被雇用的原因。
There is only so much of fortune a man really needs and the rest is just for showing off.
Culture eats strategy for breakfast.
我们成功的真正标准是在保护资源的同时如何更好地养活世界。