Write a function that accepts an array of integers and the array\'s size as argu

Question

Write a function that accepts an array of integers and the array's size as arguments. The function should create a copy of the array, except that the values should be reversed in the copy. The function should return a pointer to the new array. Write a main function which uses this function and asks users
for values in an array, outputting the reversed array afterwards.

Sample output:

How many numbers do you have in your array? 3
Enter value #1: 51
Enter value #2: 16
Enter value #3: 97
97 16 51

Need to use C++

Explanation / Answer

C++ Program that accepts an array of integers and the array's size as arguments :

#include<iostream>
#include<fstream>
using namespace std;

// Prototype
int *reverseArray(int[], int);
void showArray(int[], int);

int main()
{
const int SIZE = 50;
int values[SIZE];
int n;

cin >> n;
if (n<0 || n>=SIZE)
return 0;

ifstream inFile;
inFile.open("data");
for (int k=0; k> values[k];
inFile.close();

// Make a reverse copy of the array.
int *arrCopy = reverseArray(values, n);

// Display the contents of the new array.
showArray(arrCopy, n);

return 0;
}

// ********************************************************

int *reverseArray(int arr[], int size)
{
int sourceIndex; // Index into the source array
int targetIndex; // Index into the target array
if (size <= 0)
return NULL;

int *copy = new int[size];

// Copy arr's elements, in reverse order, to
// the new array.
for (sourceIndex = size - 1, targetIndex = 0; // Initialization expression
sourceIndex >= 0; // Test expression
sourceIndex--, targetIndex++) // Update expression
{
copy[targetIndex] = arr[sourceIndex];
}

return copy;
}
void showArray(int arr[], int size)
{
for (int index = 0; index < size; index++)
cout << arr[index] << endl;

}

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