Algorithms are the sets of steps necessary to complete computation - they are at the heart of what our devices actually do. And this isn’t a new concept. Since the development of math itself algorithms have been needed to help us complete tasks more efficiently, but today we’re going to take a look a couple modern computing problems like sorting and graph search, and show how we’ve made them more efficient so you can more easily find cheap airfare or map directions to Winterfell... or like a restaurant or something.

算法是完成计算所必需的一系列步骤——它们是我们的设备实际工作的核心。这不是一个新概念。由于数学本身的发展，算法已经被用来帮助我们更有效地完成任务，但今天我们要看一些现代计算问题，如排序和图形搜索，并显示我们如何使他们更有效，使您可以更容易地找到便宜的机票或地图方向的临冬城。。。或者像餐馆什么的。