CHALLENGE 6.6.3: Arrays. АCTIVITY Jump to level 1 Assign each element in the array userVals with the next input. 1 integer array(2) userVals Variables 2 3 // Your solution goes here Not shown when editing 4. 5 Put userVals[e] to output 6 Put userVals [1] to output Code Flowchart 1 Check Try again

CHALLENGE 6.6.3: Arrays. АCTIVITY Jump to level 1 Assign each element in the array userVals with the next input. 1 integer array(2) userVals Variables 2 3 // Your solution goes here Not shown when editing 4. 5 Put userVals[e] to output 6 Put userVals [1] to output Code Flowchart 1 Check Try again

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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CHALLENGE 5.7.2: Copy and modify array elements. АСTVITY Write a loop that sets newScores to oldScores shifted once left, with element 0 copied to the end. Ex: If oldScores = {10, 20, 30, 40), then newScores = {20, 30, 40, 10). Note: These activities may test code with different test values. This activity will perform two tests, both with a 4-element array (int oldScores[4). See "How to Use zyBooks". Also note: If the submitted code tries to access an invalid array element, such as newScores[9] for a 4-element array, the test may generate strange results. Or the test may crash and report "Program end never reached", in which case the system doesn't print the test case that caused the reported message. import java.util.Scanner; public class StudentScores { 1 test passed public static void main (String [] args) { Scanner scnr = new Scanner (System.in); All tests final int SCORES SIZE 4; passed %3D new int [SCORES SIZE]; new int [SCORES_SIZE]; int [] oldscores int [] newScores int i; for…
PARTICIPATION ACTIVITY 7.1.2: Update the array's data values. Reset Update myltems with myltems[0] = 89 Check 0 1 2 3 4 5 6 myltems 2 2123885 84 70 43 -62 29 17 DEEEEEE B
•• 8. Write a method that returns the sum of a given row in a two-dimensional array. Complete this code: ArrayUtil.java 1 public class ArrayUtil 2 { /** Computes the sum of a given row in a two-dimensional array. @param values the array @param the row whose sum to compute @return the sum of the given row */ public static int rowSum(int[][] values, int row) { 3 4 8 10 11 } 13 } 12 RowSumTester.java 1 public class RowSumTester 2 { public static void main(String[] args) { 4 6. int[][] counts = { 1, 0, 1 }, { 1, 1, 0 }, { 0, 0, 1 }, { 1, 0, 0 }, { 0, 1, 1 }, { 0, 1, 1 }, { 1, 1, 0 } 10 11 12 13 14 }; int sum = ArrayUtil.rowSum(counts, 5); 15 16 System.out.println(sum); System.out.println("Expected: 2"); 17 18 19 int[][] magicSquare = { { 16, 3, 2, 13 }, { 5, 10, 11, 8 }, { 9, 6, 7, 12 }, { 4, 15, 14, 1 }, }; 20 21 22 23 24 25 26 for (int row = 0; row <= 3; row++) { System.out.println(ArrayUtil. rowSum(magicSquare, row)); System.out.println("Expected: 34"); } 27 28 29 30 31 32 33 }
CHALLENGE 5.7.3: Modify array elements using other elements. АCTVITY Write a loop that sets each array element to the sum of itself and the next element, except for the last element which stays the same. Be careful not to index beyond the last element. Ex: Initial scores: 10, 20, 30, 40 Scores after the loop: 30, 50, 70, 40 The first element is 30 or 10 + 20, the second element is 50 or 20 + 30, and the third element is 70 or 30 + 40. The last element remains the same. import java.util.Scanner; public class StudentScores { public static void main (String [] args) { new Scanner (System.in); Scanner scnr final int SCORES_SIZE 4; %3! int [] bonusScores = new int [SCORES_SIZE]; int i; for (i = 0; i < bonusScores.length; ++i) { bonusScores[i] = scnr.nextInt (); /* Your solution goes here */ for (i = 0; i < bonusScores.length; ++i) { System.out.print (bonus Scores[i] + " "); System.out.println (); } }
10.8 Find Duplicates: You have an array with all the numbers from 1 to N, where N is at most 32,000. The array may have duplicate entries and you do not know what N is. With only 4 kilobytes of memory available, how would you print all duplicate elements in the array?
CHALLENGE ACTIVITY 7.2.2: Printing array elements. Write three statements to print the first three elements of array runTimes. Follow each statement with a newline. Ex: If runTimes[5] = {800, 775, 790, 805, 808}, print: 800 775 790 Note: These activities will test the code with different test values. This activity will perform two tests, both with a 5-element array (int runTimes[5]). See "How to Use zyBooks". Also note: If the submitted code tries to access an invalid array element, such as runTimes[9] for a 5-element array, the test may generate strange results. Or the test may crash and report "Program end never reached", in which case the system doesn't print the test case that caused the reported message. 324758.2040686.qx3zgy7 1 #include 2 1 test passed 3 int main(void) { const int NUM_ELEMENTS = 5; int runtimes[NUM_ELEMENTS]; int i; 4 All tests passed for (i = 0; i < NUM_ELEMENTS; ++i) { scanf("%d", &(runTimes[i])); } 8 9 10 11 12 V* Your solution goes here */ 13 14 return 0; 15…
mu = 0 # mean sig = 1 # std # TODO 1.2 x_values = display(x_values) todo_check([ (x_values.shape == (120,),'x_values does not have the correct shape of (120,)'), (np.all(np.isclose(x_values, np.array([-4.…
Exercise One: (6.3.7 Inserting an element, Sorted Array) This exercise is the extension of IC assignment #12, Exercise 5 (Wednesday). • Declare an integer array of size 5. I am keeping the size 5 for simplicity. You can pick any size. • Fill the array with all positive numbers until user enters -1 (sentinel, not part of the calculation) to stop OR array gets full. • Display the original array, entered by the user. • Display the sorted array. Use Arrays.sort(arrayName, 0, currentSize) Method. • Then ask the user, what number s/he wants to enter? • If the array is full, display the message, "Array is full, you can't add any more numbers". • If the array is partially filled, add the number by maintaining the order in the array. • NOTE: Do no create any new array. Algorithm: • This is a sorted array; you can't add the number at the last. • You need to find the position where you can enter the number. (Feel free to use linear search or Binary search) • then move all the elements to the…
CHALLENGE 5.7.1: Decrement array elements. АСTIVITY Write a loop that subtracts 1 from each element in lowerScores. If the element was already 0 or negative, assign 0 to the element. Ex: lowerScores = {5, 0, 2, -3} becomes (4, 0, 1, 0). import java.util.Scanner; public class StudentScores { public static void main (String [] args) { Scanner scnr new Scanner (System.in); final int SCORES_SIZE 4; int [] lowerScores new int [SCORES_SIZE]; int i; for (i = 0; i < lowerScores.length; ++i) { lowerScores[i] scnr.nextInt (); /* Your solution goes here * / for (i = 0; i < lowerScores.length; ++i) { " ") ; System.out.print (lowerScores[i] + System.out.println (); } }
4.4.1: Modify an array parameter. Write a method swapArrayEnds() that swaps the first and last elements of its array parameter. Ex: sortArray = {10, 20, 30, 40} becomes {40, 20, 30, 10}.
Need help and Java please CHALLENGE ACTIVITY 5.5.1: Multiple arrays. 474382.3411108.qx3zqy7 Jump to level 1 Integer arrays unitCosts and stockRecords are read from input, containing the costs and stock records of each unit. Initialize variable count with 0. For each unit, increment count if an unit meets both of the following conditions: Cost is greater than or equal to 20. Stock record is less than or equal to 20. Lastly, output count followed by a newline. Ex: For the input: 17 23 26 15 8 26 10 12 25 28 then the output is: 2 import java.util.Scanner; public class CombineArrays {public static void main(String[] args) {Scanner scnr = new Scanner(System.in);final int NUM_VALS = 5;int[] unitCosts = new int[NUM_VALS];int[] stockRecords = new int[NUM_VALS];int i; int count; for (i = 0; i < NUM_VALS; ++i) {unitCosts[i] = scnr.nextInt();} for (i = 0; i < NUM_VALS; ++i) {stockRecords[i] = scnr.nextInt();} /* Your code goes here */ }}
/*Code: Construct BST From Sorted ArraySend FeedbackGiven a sorted integer array A of size n, which contains all unique elements. You need to construct a balanced BST from this input array. Return the root of constructed BST.Note: If array size is even, take first mid as root.Input format:The first line of input contains an integer, which denotes the value of n. The following line contains n space separated integers, that denote the values of array.Output Format:The first and only line of output contains values of BST nodes, printed in pre order traversal.Constraints:Time Limit: 1 secondSample Input 1:71 2 3 4 5 6 7Sample Output 1:4 2 1 3 6 5 7 */public class SortedArrayToBst { /* Binary Tree Node class * * class BinaryTreeNode<T> { T data; BinaryTreeNode<T> left; BinaryTreeNode<T> right; public BinaryTreeNode(T data) { this.data = data; } } */…