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 { public static void main (String [] args) { Scanner scnr = new Scanner (System.in); final int SCORES_SIZE = 4; - new int [SCORES SIZE]; = new int [SCORES_SIZE]; int [] oldScores int [] newScores int i; 0; i < oldscores.length; ++i) { scnr.nextInt (); for (i oldscores [i] /* Your solution goes here */ for (i 0; i < newScores.length; ++i) { " ") ; System.out.print (newScores [i] + System.out.println ();

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 { public static void main (String [] args) { Scanner scnr = new Scanner (System.in); final int SCORES_SIZE = 4; - new int [SCORES SIZE]; = new int [SCORES_SIZE]; int [] oldScores int [] newScores int i; 0; i < oldscores.length; ++i) { scnr.nextInt (); for (i oldscores [i] /* Your solution goes here */ for (i 0; i < newScores.length; ++i) { " ") ; System.out.print (newScores [i] + System.out.println ();

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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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]). 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. #include <iostream>using namespace std; int main() { const int SCORES_SIZE = 4; int oldScores[SCORES_SIZE]; int newScores[SCORES_SIZE]; int i; for (i = 0; i < SCORES_SIZE; ++i) { cin >> oldScores[i]; } /* Your solution goes here */ for (i = 0; i < SCORES_SIZE; ++i) { cout << newScores[i] << " "; } cout…
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
In [ ]: We obtained an array with N = 10 values, scattered about mean of 25 (mm). Let's calculate the mean, standard deviation, standard deviation of the mean and 20-uncertainty SL of these numbers. In the following code, do these steps: • In the first cell, add a brief comment that explains what each statement does. Start each comment with a # sign. • In the second cell, delete the raise Not ImplementedError() code line and print the standard deviation and 20-uncertainty on the screen (follow the example for mean_L) mean_L = np.mean (L) print("Mean length: ", mean_L) stddev_L = np. std (L, ddof=1) stddev_mean_L = stddev_L/np.sqrt(N) uncertainty_L = 2*stddev_mean_L In [ ] V #YOUR CODE HERE raise NotImplementedError() #calculates the mean of L In the above code, the green expressions on the right hand side, such as np.mean, np. std and np.sqrt are functions built into the numpy package of Python. The names on the left hand side are variable names invented by me.
Try using the ref or out keyword to pass in an array argument and see what happens.
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 //…
Note: Set a random seed of 100 for this assignment. All arrays should contain random numbers between 0 and 1 (zero is inclusive). Create a one-dimensional array of twenty float random numbers. Assign the sum of these values to Q1. Assign the max of these values to Q2. Create a four by five array of random numbers. Take the minimum values in each array and create an array of those values. Assign it to Q3. Assign the mean of all the array values to Q4. Create an array with the following values: 2, 3, np.nan (this should represent a missing value), and 5. Use a numpy function to find the sum of the values in this array. Assign the sum to Q5 (you should expect a numerical value here). Create two separate arrays each containing four random numbers. Concatenate the two arrays and assign it to Q6. Create a four by four array of random numbers and call it q7. Concatenate this array with itself and assign it to Q7. Create a two by four array of…
: You are given an array-like data structure Listy which lacks a sizemethod. It does, however, have an elementAt ( i) method that returns the element at index i in 0( 1) time. If i is beyond the bounds of the data structure, it returns -1. (For this reason, the data structure only supports positive integers.) Given a Listy which contains sorted, positive integers,find the index at which an element x occurs. If x occurs multiple times, you may return any index.
Given an array arr of type int, along with two int variables i and j, write some code that swaps the values of arr[i] and arr[j]. Declare any additional variables as necessary.