The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.
多项式时间归约的概念对于理解NP完全问题的结构至关重要。
邪恶获胜的唯一必要条件是好人无所作为。
You don't have to be a rock star to want to change the world.
Nature doesn’t care about your plans. It will test you, and you have to be ready.