Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- Create a 1D integer array of size 17. Fill each index with a random value ranging from 1 to 359 inclusive. You will then design and implement the Random Sort algorithm using the following methods: Create a method called check_if_sorted (). It should take in a 1D integer array and return a boolean value. It should return TRUE if the array is sorted in nondescending order, and FALSE otherwise. Hint: If you compare elements in the array and a pair is in the wrong order, that would mean the array is not in non-descending order. Create a method called shuffleArray (). It should take in a 1D integer array and return a 1D integer array. Shuffle the array so that the values are in random different indexes, and return altered array. Hint: There are many approaches to solve this problem – making a second array in the shuffleArray () method might be part of the answer. Create a method called PrintArray (). It should take in a 1D integer array and return nothing. Simply print the current values…arrow_forwardLet N be an unordered array of integers. The maximum number of compares required to find the minimum value is N. Select one True or Falsearrow_forwardBinary search can only be performed on a/an ………… Sorted array/list Random array/list Any array/list Disordered array/listarrow_forward
- Prime numbers can also be generated by an algorithm known as the Sieve of Eratosthenes . The algorithm for this procedure is presented here. Write a program that implements this algorithm so as to find all prime numbers up to n = 150. Sieve of Eratosthenes Algorithm To Display All Prime Numbers Between 1 and n Step 1: Define an array of integers P . Set all elements P i to 0, 2 <= i <= n. Step 2: Set i to 2. Step 3: If i > n , the algorithm terminates. Step 4: If P i is 0 (value i is a prime number), then i is prime and display its value. Step 5: For all positive integer values of j , such that i * j ≤ n , set P i ∗ j to 1 (non - prime). Step 6: Add 1 to i and go to step 3arrow_forwardPlease implement the linear search algorithm on a randomly generated 23 member array. All numbers should be generated randomly and the expected SEARCH number also should be generated randomly.arrow_forwardData Structure & Algorithm: Here is an array with exactly 15 elements:1 2 3 4 5 6 7 8 9 10 11 12 13 14 15Suppose that we are doing a serial search for an element. Circle any elements that will be found by examining two or fewer numbers from the array.arrow_forward
- The contents of the array below represent a BST (Binary Search Tree). What would be the contents of the array after 30 is deleted. Briefly explain how 30 would be deleted. Use an X to represent any empty spots in the array. 30 2050 10 25 40 60arrow_forwardComplete the combinations function to generate all combinations of the characters in the string s with length k recursivelyarrow_forwardThe algorithm: –In an array of n elements, go to index [n/2] –If the record there is the one you want, you are done –If the record value there is smaller than your search value, all records less than the current record can be ignored – set your search range of elements to [n/2+1…n] and return to step 1 –Otherwise, set your range of elements to [0…(n/2)-1] and return to step 1 –Repeat this loop until you have 0 elements (record is not found) or record is found Short answer Another approach to the update algorithm is to perform use the delete function for the old value and if it is successful, call the insert function using the new value. Explain in your own words if you think this approach is significantly better, worse, or in the same category as the algorithm discussed in the slides, and why.arrow_forward
- A majority element is an element that makes up more than half of the items inan array. Given a positive integers array, find the majority element. If there is no majority element,return -1. Do this in O(N) time and 0(1) space.Input: 1 2 5 9 5 9 5 5 5Output: 5arrow_forwardThe optimised bubble sort offers none of the following benefits over conventional sorts for items that have already been sorted.arrow_forward
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