It's really the multiplication and in this case, division that the problem arises. Yeah?

这里实际上是乘法和，除法引起了那个问题，请说？

哈佛公开课 - 计算机科学课程节选

And I'm going to do it only using multiplication and addition and some simple tests. All right?

我只能用乘法和加法,以及一些小测试来解决这个问题？

麻省理工公开课 - 计算机科学及编程导论课程节选