If s designates the sum of ages of employees 30 years and older across all slices and if s I is the sum within the i-th slice, it is easy to see that s is the sum of si.

如果s指定所有片上的年龄在30岁以上员工的年龄总和并且如果s i是第i片内的总和，那么很简单，S就是Si的总和。

youdao

A region of eastern European U. s. s. R. in the southern Ural Mountains. It came under Russian control in the 'th century.

俄罗斯欧洲部分东部一个地区，位于乌拉尔山脉南部。它在'世纪被俄国所控制。

youdao

Right, so s of i saying, given the list, look at the i'th element, true is it the same thing?

第2个元素，看他们是不是相等呢？,如果他们相等，好，把答案设置为？

麻省理工公开课 - 计算机科学及编程导论课程节选

Lisp The problem with that technique, while it's very general, is how long does it take me to find the i'th element of the list?

很多编程语言包括，都是用了这种技术,这个问题就是，当数组很大的时候？

麻省理工公开课 - 计算机科学及编程导论课程节选

Here's the problem. How do I get to the nth- er, the k'th element in the list, in this case?

如何找到第n个元素呢-,在这里，如何找到第k个元素呢？

麻省理工公开课 - 计算机科学及编程导论课程节选