Now as an aside, I'll admit this is a completely useless program, much like the first couple of ones we did because why would you write a program just to solve this?

说点题外话，我承认这是一个完全无用的程序，跟我们之前写的两个程序一样,我们为什么需要写个程序来解决这个数学运算呢？

哈佛公开课 - 计算机科学课程节选

And then remember how you solve this 'cause otherwise completely useless exercise.

记住我是怎么解决这个问题的，否则就是一次,无意义的演练了，对吧。

哈佛公开课 - 计算机科学课程节选