Reverse an array program

Write a program reverse an array in C++/C 

#include <iostream>

using namespace std;

void display(int *arr, int n)

{

    for (int i = 0; i < n; i++)

    {

        cout << arr[i] << " ";

    }

    cout << endl;

}

void reverseArray(int arr[], int n)

{

    int start = 0;

    int end = n - 1;

    while (start < end)

    {

        swap(arr[start++], arr[end--]);

    }

}

int main()

{

    int arr[] = {1, 2, 3, 4, 5};

    int n = sizeof(arr) / sizeof(int);

    cout << "The array is : ";

    display(arr, n);

    cout << "The Reverse Array is : ";

    reverseArray(arr, n);

    display(arr, n);

}

Output is :

The array is : 1 2 3 4 5 The Reverse Array is : 5 4 3 2 1