算法的美在于它们能够用简单的步骤解决复杂的问题。
The beauty of algorithms lies in their ability to solve complex problems with simple steps.
对于系统,翻版的模拟是在控制图中添加一个创建循环的边,而不仅仅是一个附加节点。
The past is a shadow that follows us, but it is our choice whether to let it define us or to step into the light.