What is the output of the code snippet given below? int arr[5] = { 1, 2, 3, 4, 5 }; int* ptr = arr; cout << "arr[0] << 11 contains a value of " << *ptr << endl; There is no output due to a compilation error. There is no output due to a run-time error. arr [0] contains a value of 0. arr [0] contains a value of 1.
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- What is the result of multiplying ptr by four? Assuming ptr is an int reference, the following occurs:Please write this in JAVA as well as use the Eq.txt file provided. intends to auto generate test cases for a function foo that has k integers as input arguments, i.e., foo(int n1, int n2, …, int nk). Each argument belongs to a different equivalence class, which are stored in a downloadable Eq.txt file. The content is shown below and may be modified to handle more inputs and equivalence classes. For this file, the nth row describes the nth input. Take the second row for example. There are five input arguments. The data 1, 10; 11, 20; 21, 30 indicates that argument n2 has three equivalence classes separated by the semi-colons. Develop an internal method “private int check(int val)” that returns the equivalence class the val is in. The result of check(val = 3) for n2 will be 1 and check(val = 25) for n2 will be 3. Regarding the function foo, it computes the sum of the returned values by the check function for all input arguments. Follow the contents of the Eq.txt file to…Pointers are by default passed by value in a function. Group of answer choices True False ================= Given the below code segment, which of the following would allow you to deallocate all memory allocated to the pointer numbers? int* numbers = new int[5]; Group of answer choices delete[] numbers; delete numbers; delete[5] numbers; None of these ========== Consider the following code: int arr[][4] = { {1, 2, 3, 4}, {7, 8, 9, 10} }; cout << arr[1] << endl; What will be the output? Group of answer choices 1 7 Address of 1 Address of 7 Compilation error: Second [] bracket missing with arr
- Give solution in C ++ Language with secreenshoot of source code. Part 01In this task, you need to do the following:• Write a function named displayMessage() that takes user name as input in character array and then shows greetings• Now take the name input in main() and pass the name as an argument to displayMessage() function• Change the displayMessage() method such that it returns the number of characters after displaying the greetings part 02Write a function power that takes two parameters a and b. And it returns the power as ab.2. Replace (????) with relevant code for the program to function. Details about the programs are provided below. (Jav has been used). Show the output. a)This program prints four lines: kimarr() 4 [9, 0, 0, 14] 2 [9, 0, 0, 14] kimarr() 8 [9, 9, 14, 14] 4 [9, 9, 14, 14] */ package finalexamtakehome2; import java.util.*; // for Arrays class /** * * @author sweetkim */ public class Finalexamtakehome2 { // public static void kimarr(int x, int[] a) { x = x * 2; if (x > 6) { a[2] = 4; a[1] = 9; } else { a[0] = 9; a[3] = 1; } System.out.println("kimarr() " + x + " " + Arrays.toString(????)); } // public static void main(String[] args) { int x = 1; int[] a = new int[4]; x = x * ????; kimarr(x, a); System.out.println(x + " " + Arrays.toString(????)); x = x * 2; kimarr(x, a); System.out.println(x + " " +…/ Can you explain the output step by step? #include <iostream>#include <vector>using namespace std;int f(int a, int b){cout << a << " " << b << endl;if (b == 0) return a;return f(b, a % b);}struct C{int m = 9;static int s;C(C& c) { m *= c.m; }C(int m) { this->m = m - s; }C() { m++; }C(int m, int n) { m += n; }};int C::s = 2; using namespace std; int main(){cout << f(21, 34) << endl; // (1) -- (10)C w(1, 2), x(3), y, z(w);w.s++; double a = 42, * b = &a, & c = a, d = a;cout << *b << endl; // (16)cout << a-- << endl; // (17)cout << c << endl; // (18)cout << d << endl; // (19)cout << (&c == b) << endl; // (20)return 0;}
- This is the code so far #include <iostream> // for cin and cout#include <iomanip> // for setw() and setfill()using namespace std; // so that we don't need to preface every cin and cout with std:: void printSpaces(int n, int end){for (int j = n; j > end; j--){cout << " ";}}void printFirstTwoBuildingSection(int n, int startSpacing){int start = 2 * ((n / 2) - 1), end = 0;for (int i = 0; i < n; i++){printSpaces(startSpacing, 0);cout << "|";if (i < (n / 2)){printSpaces(i, 0);cout << "\\";printSpaces(start, 0);cout << "/";start -= (2);printSpaces(i, 0);cout << "|" << endl;}else{printSpaces(n - i - 1, 0);cout << "/";printSpaces(end, 0);cout << "\\";end += (2);printSpaces(n - i - 1, 0);cout << "|" << endl;}}printSpaces(startSpacing, 0);cout << "/";for (int i = 0; i < n; i++){cout << "-";}cout << "\\" << endl;}int main(){int menuOption = 0; cout << "Choose from among the following…Please Help In JAVA Here is the skeleton of a code for insertion sorting in an imperative language. You have to add right lines of codes for the language you choose (C, C++, C#, JAVA etc,). The following sample is for C++. #include <iostream>#include <array>#include <stdio.h>#include <stdlib.h>#include <ctime>using namespace std; void insertionSort(int A[], int n){for (int i = n-2; i >= 0; i--){ int j; int v = A[i]; for (j = i + 1; j <= n-1; j++) { if (A[j] > v) break; else A[j-1] = A[j]; } A[j-1] = v;}} int *randomArray(int n){srand((unsigned) time(0));int * A = new int [n];for (int i = 0; i < n; i++){ A[i] = rand();}return A;} Sample function calls (call these functions in main driver function):int n = 100000;int * A = randomArray(n);insertionSort(A, n);delete [] A; Note: delete memory of first array before sorting second array. After you modify the code: (1) Generate 100, 000 random numbers and sort them (2) Generate 300000…6. Write a swap function, that swaps the values of two variables in main, but usepointers instead of reference parameters.7. Write a function that takes an array of ints and its size as arguments. It shouldcreate a new array that is the same size as the argument. It should set the values inthe new array by adding 10 to each element in the original array. The functionshould return a pointer to the new array. (Make sure you use dynamic memoryallocation) can i get answers for this two sub parts. thanks
- I only got partial points, please help. In C++ please. Month is of type month: this is date.h file: #ifndef DATE_H #define DATE_H #include iostream #include <iomanip> enum class Month { jan = 1, feb, mar, apr, may, jun, jul, aug, sep, oct, nov, dec }; struct Date { int day = 1; Month month = Month::jan; int year = 1970; }; Date makeDate(Month month, int day, int year); std::ostream& operator<<(std::ostream& out, const Date& d); inline int isLeapYear(int y) {return (y % 4 == 0 && y % 100 != 0) || 4 % 400 == 0;} do not change header file. this was given^, just implement makeDate in udts.cppC. In permutations and combinations, the term “n C r” refers to n combinationstaken r at a time.??? =?!/?! (? − ?)!Write a recursive function to find the factorial of a number.Use the defined function to compute the term “nCr” for the following scenario:The values of ‘n’ and ‘r’ are stored in two parallel arrays of any user definedsize . You have to Read the arrays n and r at run time. Compute n C r for eachcorresponding terms in the array ‘n’ and ‘r’, and display it properly formatted.Also your program should print the current date and time using libraryfunctionsIn c++, please! Thank you! Write a void function SelectionSortDescendTrace() that takes an integer array and sorts the array into descending order. The function should use nested loops and output the array after each iteration of the outer loop, thus outputting the array N-1 times (where N is the size). Complete main() to read in a list of up to 10 positive integers (ending in -1) and then call the SelectionSortDescendTrace() function. If the input is: 20 10 30 40 -1 then the output is: 40 10 30 20 40 30 10 20 40 30 20 10 The following code is given: #include <iostream> using namespace std; // TODO: Write a void function SelectionSortDescendTrace() that takes// an integer array and the number of elements in the array as arguments,// and sorts the array into descending order.void SelectionSortDescendTrace(int numbers [], int numElements) { } int main() { int input, i = 0; int numElements = 0; int numbers [10]; // TODO: Read in a list of up to 10 positive…