Computers and Technology, 06.06.2020 21:02 xboxdude06

A company database consists of 10,000 sorted names, 40% of whom are known as good customers and who together account for 60% of the accesses to the database. There are two data structure options to consider for representing the database: • Put all the names in a single array and use binary search.
• Put the good customers in one array and the rest of them in a second array. Only if we do not find the query name on a binary search of the first array do we do a binary search of the second array.

Required:
a. Demonstrate which option gives better expected performance.
b. Does this change if linear search on an unsorted array is used instead of binary search for both options?

Answers: 3

Show answers

Other questions on the subject: Computers and Technology

Computers and Technology, 22.06.2019 10:50, christinavelez26

Using least squares fitting, you are to fit the data sets to the following models and solve for the parameters ai , where i is the index of the parameter. the input/output data for the systems are linked in the bblearn site. for each of the systems use matlab to plot the supplied data vs. the model fit on one plot. include your code in the solutions. (a) linear fit "lineardata. mat" y=a1x^3 + a2x^2 + a3x + a4 (b) plant fit "plantdata. mat g(s) = a1/(s + a2)

Answers: 1

continue

Computers and Technology, 24.06.2019 00:40, dheydar3506

What is the error in the following pseudocode? module main() call raisetopower(2, 1.5) end module module raisetopower(real value, integer power) declare real result set result = value^power display result end module

Answers: 1

continue

Computers and Technology, 24.06.2019 01:00, bellamyciana

What are two ways to access the options for scaling and page orientation? click the home tab, then click alignment, or click the file tab. click the file tab, then click print, or click the page layout tab. click the page layout tab, or click the review tab. click the review tab, or click the home tab?

Answers: 2

continue

Computers and Technology, 24.06.2019 14:30, ari313

Two students are discussing the flow of electricity. student a says that voltage is a measure of the amount of electron flow in a circuit. student b says that power is the product of voltage and current. which of the following statements is correct? a. only student a is correct b. only student b is correct c. both of the two students are correct d. neither of the two students is correct

Answers: 1

continue

You know the right answer?

A company database consists of 10,000 sorted names, 40% of whom are known as good customers and who...