成功不是终点,失败也不是致命的。
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.
译文:国家已经残缺不全,总是需要去修补,为了国家牺牲自己怎敢吝惜生命。