随笔分类 -  system design

weather station observer
摘要：public interface Subject {public void registerObserver(Observer o);public void removeObserver(Observer o);public void notifyObservers();}public interf... 阅读全文

posted @ 2014-10-24 03:11 brave_bo 阅读(211) 评论(0) 推荐(0)

facebook -- Typeahead Search
摘要：https://www.facebook.com/video/video.php?v=432864835468首先先看演讲. 太有营养了.1, trie .is straight forward, butwaste space, thrashes cache.1.points are huge.2.... 阅读全文

posted @ 2014-10-18 06:02 brave_bo 阅读(332) 评论(0) 推荐(0)

Get average stock price every 10 minutes
摘要：Write a class that displays average of stock prices for a given stock symbol for the last 10 minutes. We have a service that sends stock updates about... 阅读全文

posted @ 2014-10-08 08:18 brave_bo 阅读(272) 评论(0) 推荐(0)

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