Question: Problem 2. We say that a hash function h:UN that maps values from a set U to integers in the range [0M) is n-perfect if

Problem 2. We say that a hash function h:UN that maps

Problem 2. We say that a hash function h:UN that maps values from a set U to integers in the range [0M) is n-perfect if there exists at most n distinct values u1,,ujU such that h(u1)==h(uj). P2.1. Consider the hash function h(k)=(2k+5)mod11. Is this hash function 2-perfect for the inputs 0,,21 ? Explain why or why not. P2.2. Prove that a hash function h:UN can only be n-perfect if UnM. P2.3. Can a general purpose hash function be n-perfect for any M ? Argue why or why not

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

We say that a hash function h:UN that maps values from a set U to integers in the range [0M) is n-perfect if there exists at most n distinct values u1,,ujU such that h(u1)==h(uj). P2.1. Consider the...

: (i) What data structures are maintained by the page manager. (ii) What happens when a machine performs a read operation to a page. (iii) What happens when a machine performs a write operation to a...

llustrate different ways of connecting these components together to span a range of performance requirements. [10 marks] For each of the performance categories that you identify state today's typical...

3 ,,uoh "gram 3 Eww 3 m T mm H a 3 .2 ' m w .,.m.av>v 3. m. @3on we geonwoaoa mm H "with M'nr H E. wads + we A at. ES 0 3.8V WEE 3563 mo wow 23 E m \"9H .3 avgmeMm\" mnemagouom Aggy\"...

Math 636 Final - Quiz Component 1. The system of linear equations 2x2 x3 = 3 2x1 + x2 + 2x3 = 1 x1 + x2 + 3x3 = 2 (a) is consistent with a unique solution. (b) is consistent with infinitely many...

You have been provided with the description of a programming language, J, intended for scripting applications. Its syntax is similar to a cut-down version of Java in that it consists of function...

) Consider integer division of one two's-complement binary number by another. Programming languages may vary in the result when one argument is negative. What differing conventions might they be...

Assignment 5: Hash Table implementation and concordance There are three parts to this assignment. In the first two parts, you will complete the implementation of a hash map and a concordance program....

Use Floyd's algorithm to find the distance between all pairs of vertices in the weighted graph in Figure 4(a). o0 7 10 c o0

As a movie exhibitor, you can choose between paying a flat fee of $5,000 to show a movie for a week or paying a fee of $2 per customer. Will your choice affect your fixed and variable costs? How?

The process of determining what your heirs will receive from your estate occurs in which step of the estate planning process? A . Step 1 B . Step 2 C . Step 3 D . Step 4 E . Step 5

In order to achieve success, you should know how to deal with people. Dealing with your colleagues at work is a combination of art and science. You will have to use different theories and apply these...

Holding national saving constant, does an increase in net capital outflow increase, decrease, or have no effect on a countrys accumulation of domestic capital?

An article in USA Today (December 16, 2004) began President Bush said Wednesday that the White House will shore up the sliding dollar by working to cut record budget and trade deficits. a. According...

International trade in each of the following products has increased over time. Suggest some reasons this might be so. a. wheat b. banking services c. computer software d. automobiles