A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.
每一次的努力都是对未来的投资,智者明白这一点。
At the risk of seeming ridiculous, let me say that the true revolutionary is guided by a great feeling of love.
创新不仅仅是技术的问题,而是解决实际问题。
我不是来融入的,我是来脱颖而出的。