So the basic idea was fine, but I failed to satisfy the initial condition that the answer had to be between the lower bound and the upper bound. Right?

因此基础的思想是对的，但是程序没能满足,正确答案在给定的区间内这个条件,对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选

The newspaper article just told the story of a home owner who had subscribed to this company in the past but failed to renew his subscription.

这则新闻对一个房主进行了报道,他曾经是这家公司的会员,但没有去续费。

耶鲁公开课 - 公正课程节选