[转]设计模式(22)-Strategy Pattern 一、 策略(Strategy)模式 策略模式的用意是针对一组算法,将每一个算法封装到具有共同接口的独立的类中,从而使得它们可以相互替换。策略模式使得算法可以在不影响到客户端的情况下发生变化。 假 设现在要设计一个贩卖各类书籍的电子商务网站的购物车(Shopping Cat)系统。一个最简单...
Many of the most impactful guiding policies are predicated on broad, consistent adoption. For example, requiring all backend projects to be implemented in Golang would greatly narrow your security, compliance, and tooling needs. Similarly, requiring all new projects to use a specific database would...
Optimal Merge Pattern Check duplicate elements in an array Find the missing number Find the number occurring an odd number of times Find the pair whose sum is closest to zero in minimum time complexity Find three elements in an array such that their sum is equal to given element K Bitonic ...