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

What was the key step that I said I needed to do on Friday but failed very publicly to do so?

至关重要的一步，我将在本周五跟大家细细道来,如果我很嚣张地失败了怎么办？

哈佛公开课 - 计算机科学课程节选