A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.
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。
自由不是做你想做的事,而是想要你该要的东西。
啊,但一个人的追求应该超越他的能力,否则天堂是为了什么呢?
"Technology is the knack of so arranging the world that we don't have to experience it."