Problem 2 - Computing prefect numbersA positive integer is called a perfect number if it is equal to the sum of all of its positivedivisors, excluding itself. For example, 6 is the first perfect number because 6 = 3 +2 + 1.(The same applies for 28 1+2 + 4+7+14).Write a program that creates an array of N integers (N = 3000) and fills it with randomnumbers between 1 and 200. The program has to count the number of perfect numbers inthis array. To do that in less time, it breaks down the job between three threads:1. threadLow: counts perfect numbers in the first part of the array. (From 0 up to1000)2. threadMiddle: counts perfect numbers in the second part of the array. (From 1000up to 2000)3. threadHigh: counts perfect numbers in the third part of the array. (From 2000 up to3000)The parent (main) thread waits for them to finish, calculates the sum of the three values,and prints it. Note that the three threads have similar jobs to perform with somedifferences regarding the range of search in the array.

ger is called a perfect number if it is equal to the sum of all positi divisors, excluding itself. For example, 6 is the first perfect number because (The same applies for 28 1+2 + 4+7+14). Write a program that creates an array of N integers (N3000) and fills numbers between 1 and 200. The program has to count the number of perfe array. To do that in less time, it breaks down the job between three thre 1. threadLow: counts perfect numbers in the first part of the array. Sitive this 1000) 2. threadMiddle: counts perfect numbers in the second part of the array up to 2000) 3. threadHigh: counts perfect numbers in the third part of the array. (Frc 3000)

ger is called a perfect number if it is equal to the sum of all positi divisors, excluding itself. For example, 6 is the first perfect number because (The same applies for 28 1+2 + 4+7+14). Write a program that creates an array of N integers (N3000) and fills numbers between 1 and 200. The program has to count the number of perfe array. To do that in less time, it breaks down the job between three thre 1. threadLow: counts perfect numbers in the first part of the array. Sitive this 1000) 2. threadMiddle: counts perfect numbers in the second part of the array up to 2000) 3. threadHigh: counts perfect numbers in the third part of the array. (Frc 3000)

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

See similar textbooks

Similar questions

Write a program in Java programming language that reads an array of integers! The program should output the average value computed from all even numbers in the array.
Using methods and arrays , write a program that Creates and fills an array A of size 50 filled with random integers in the range 5 to 50 inclusive . prints it out in 5 lines ( 10 values per line ) . • Calculates the sum of the odd elements of A and print it out .
Write a program that simulates a lottery. The program should have an array of five integers named winningDigits, with a randomly generated number in the range of 0 through 9 for each element in the array. The program should ask the user to enter five digits and should store them in a second integer array named player. The program must compare the corresponding elements in the two arrays and count how many digits match. For example, the following shows the winningDigits array and the Player array with sample numbers stored in each. There are two matching digits, elements 2 and 4. WinningDigits 7 4 9 1 3 player 4 2 9 7 3 Once the user has entered a set of numbers, the program should display the winning digits and the player’s digits and tell how many digits matched. Working program Complete indentation, proper use of variables Comments on your program
In Java Write an application that inputs five numbers, each between 10 and 100, inclusive. As each number is read, display it only if it’s not a duplicate of a number already read. Provide for the “worst case,” in which all five numbers are different. Use the smallest possible array to solve this problem. Display the complete set of unique values input after the user enters each new value. Rough output in screenshot
Write a program that reads student scores into an array, gets the best score, and then assigns grades based on the following scheme: • Grade is A if score is • Grade is B if score is • Grade is C if score is • Grade is D if score is • Grade is F otherwise. best - 10 best - 20; best - 30; best - 40; The program prompts the user to enter the total number of students, then prompts the user to enter all of the scores, and concludes by displaying the grades
Write a program that simulates a lottery. The program should have an array of 5 integers named winningDigits, with a randomly generated number in the range of 0 through 9 for each element in the array. The program should ask the user to enter 5 digits and should store them in a second integer array named player. The program must compare the corresponding elements in the two arrays and count how many digits match. For example, the following shows the winningDigits array and the Player array with sample numbers stored in each. There are two matching digits, elements 2 and 4. WinningDigits 7 3 player 4 2 9. 7 3 Once the user has entered a set of numbers, the program should display the winning digits and the player's digits and tell how many digits matched.
1. Declare an array to hold eight integers. Use a for loop to add eight random integers, all in the range from 50 to 100, inclusive, to this array. Duplicates are okay. Next, pass the array to a method that sorts the array and returns another array containing only the largest and smallest elements in the original array. Print these two values in main. Then use a foreach loop to display all elements of the sorted array on one line separated by a single space. This latter loop should also count the odd and even numbers in the array and determine the sum of all elements in the array. SAMPLE OUTPUT The lowest element is 59 The highest element is 96 Here is the array 59 64 76 77 80 88 91 96 Evens: 5, odds: 3 Total: 631
Write a program that declares an array of 15 integers and reads the values from the user. Make sure that the user doesn’t enter a value greater than 10 (if the user enters a value not in the allowed range, discard that value and read another to put into the array). Now tell the number that occur maximum number of times in the array. For example for the following 7 has maximum occurrence. 4,7,3,3,2,7,1,5,7,9,9,9,7,8,10 Use both linear and binary search.
The Lo Shu Magic Square is a grid with 3 rows and 3 columns shown below. The Lo Shu Magic Square has the following properties: The grid contains the numbers 1 – 9 exactly The sum of each row, each column and each diagonal all add up to the same number. This is shown below: Write a program that simulates a magic square using 3 one dimensional parallel arrays of integer type. Do not use two-dimensional array. Each one the arrays corresponds to a row of the magic square. The program asks the user to enter the values of the magic square row by row and informs the user if the grid is a magic square or not. Processing Requirements - c++ Use the following template to start your project: #include<iostream> using namespace std; // Global constants const int ROWS = 3; // The number of rows in the array const int COLS = 3; // The number of columns in the array const int MIN = 1; // The value of the smallest number const int MAX = 9; // The value of the largest number //…
JAVA PROGRAM Write a program that asks the user to input two integers a and b. Then create an array that has all integer from a to b. Print out the array. (Don’t forget to consider the situation of a=b, a<b, and a>b.) Example 1: Input two numbers: 6 2 Array is [6, 5, 4, 3, 2] Example 2: Input two numbers: 4 8 Array is [4, 5, 6, 7, 8] Pass the above array as a parameter to a method called average and return the average and print it out in the main method. (Do not use Math library to get the average.)