10.write code in c++ Design a Hash function that is applied to a pool of numbers in the range from 1 to 1000.The storage area will be an array of size 20. First apply your function to a set of 10randomly selected numbers and display the results. A well designed hash function willproduce no or a small degree of clustering. Take a look at the result and analyze the resultthen apply the function to a set of 20 random numbers and see how well your functionperforms. Submit the code for credit, include your analysis as a block comment with thecode.

Step 1.---- 1.I have done plain some random text to try random number replace test data inside main…

Design a Hash function that is applied to a pool of numbers in the range from 1 to 100 The storage area will be an array of size 20. First apply your function to a set of 10 randomly selected numbers and display the results. A well designed hash function wil

Design a Hash function that is applied to a pool of numbers in the range from 1 to 100 The storage area will be an array of size 20. First apply your function to a set of 10 randomly selected numbers and display the results. A well designed hash function wil

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Hash Table

A hash table also called a hash map, is a data structure that maps key-value pairs. The hash table can be used in complex systems to provide fast access and compact storage. A hash table is a structure that stores data in an abstract data type kind of associative array. It keeps data in an array format, with a distinct index value for every data value. If the index of the required data is known, then the data can be accessed very easily.

Question

10.

write code in c++

Design a Hash function that is applied to a pool of numbers in the range from 1 to 1000.
The storage area will be an array of size 20. First apply your function to a set of 10
randomly selected numbers and display the results. A well designed hash function will
produce no or a small degree of clustering. Take a look at the result and analyze the result
then apply the function to a set of 20 random numbers and see how well your function
performs. Submit the code for credit, include your analysis as a block comment with the
code.

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Suppose you have a hash table with seven entries (indexed 0 through 6). This table uses open addressing with the hash function that maps each letter to its alphabet code (a = A = 0, etc.) modulo 7. Rehashing is accomplished using linear-probing with a jump of 1. Describe the state of the table after each of the letters D, a, d, H, a, and h are added to the table.
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In Python, implement a hashing table data structure of size 20, which can cope with collisions. Thus, you must implement the closed collision system in its three modes: Linear scanQuadratic scanDouble hashing scan. For h_alt use h_alt(k) = (k mod (m - 1)) + 1, where m is the size of the table. The data to be managed are students from a certain university who have a 5-digit registration number and it is unique. In addition, the student has a name, age and address. Create a .txt file with 10 students (one for each line) and have them loaded into your program. Build a menu of options where you can: - Find a student and print his data if found and position in the table. Otherwise print a "Not Found" message. - Delete a student and return the position from which it was eliminated. If the student does not exist, print a message. - Enter a new student. For this option, that only allows entering the 5-digit license plate and that random data is automatically generated for the name, age and…
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you're storing information about the users of a web-based application, which is to say that each user has a username that is a string of uppercase letters, lowercase letters, and digits. let's imagine that the most common operations are to add a new user to the application and to check whether a user already exists (given a username). A hash table would be an appropriate way to solve this problem because you know that a well-chosen hash function can lead to something akin to Θ(1) lookups and amortized Θ(1) insertions - suppose that you've chosen a hash function that sums the character codes associated with the characters in the username. Is the chosen hash function a good hash function?
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