题目内容

How are the countries listed in the survey?[音频]

According to how popular their food is.
B. According to how different their cultures are.
C. According to how much influence their cultures have.
D. According to how difficult their cultures can be measured.

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According to the study, which country has the greatest influence?[音频]

A. France.
B. Italy.
C. Greece.
D. Russia.

用贪心法设计算法的关键是()。

A. 将问题分解为多个子问题来分别处理
B. 选好贪心准则
C. 获取各阶段间的递推关系
D. 满足最优性原理

设有n个独立的作业,有m台相同的机器进行加工处理(n>m)。利用贪心算法解多机调度问题,所需的计算时间为()。

A. O(n2)
B. O(nlogn)
C. O(n)
D. O(n3)

考虑带期限的作业调度问题:n=7,p(1:7)=(35,30,25,20,15,10,5),D(1:7)=(3,4,2,6,4,8,3) 假设处理每个作业需1个单位时间,则最优调度的效益值为()。

A. 135
B. 110
C. 140
D. 120