It really matters whether people are working on generating clean energy or improving transportation or making the Internet work better and all those things. And small groups of people can have a really huge impact.
动态规划理论基于最优性原理,该原理指出,无论初始状态和初始决策如何,剩余决策必须构成关于第一个决策所导致状态的最优策略。
The best books are the ones that children want to read again and again.