我不把任何事情视为理所当然。现在我只有好日子，或伟大的日子。
"The truth is not always beautiful, but the pursuit of it is."
The future belongs to those who are willing to challenge the status quo.
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。