Everyone is in favor of free speech. Hardly a day passes without its being extolled, but some people's idea of it is that they are free to say what they like, but if anyone else says anything back, that is an outrage.
一个问题如果在计算机上可以快速解决,那么它属于P类问题;如果一个解可以快速验证,那么它属于NP类问题。
我不是完美主义者,但我喜欢把事情做好。
The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.
"Regulation is necessary, but too much can be harmful."
幸福是一种意识状态,它来自于一个人价值的实现。
译文:西风落日下野草斑驳,秋日天空云淡风轻,一只孤鸟飞过。我这个两鬓斑白的游子,又骑着马登上了太行山。