Moving Zeros to end in an array

#include <iostream>

void display(int arr[], int n)

{

    std::cout << "{ ";

    for (int i = 0; i < n; i++)

    {

        std::cout << arr[i] << ", ";

    }

    std::cout << " }\n";

}

void moveToEnd(int arr[], int n)

{

    int count = 0;

    for (int i = 0; i < n; i++)

    {

        if (arr[i] != 0)

        {

            std::swap(arr[i], arr[count]);

            count++;

        }

    }

    display(arr, n);

}

int main()

{

    int arr[] = {1, 2, 0, 12, 0};

    int n = sizeof(arr) / sizeof(arr[0]);

    std::cout << "Size of array = " << n << std::endl;

    std::cout << "Before moving all zeros to end" << std::endl;

    display(arr, n);

    std::cout << "After moving all zeros to end" << std::endl;

    moveToEnd(arr, n);

    return 0;

}