Write a function that calculates the reverse of an integer using recursion.

#include <stdio.h>
#include <conio.h>
#include <math.h>

int reverse(int nb)
{
	if (nb == 0)
		return 0;
	// we nultiply the last digits by the number of digits in nb and we add the reverse of nb/10
	return ((nb % 10 * pow(10, (int)log10(nb))) + reverse(nb / 10));
}

void main()
{
	int nb;

	printf("Enter an integer: ");
	scanf("%d", &nb);

	printf("Reverse of %d = %d", nb, reverse(nb));

	getch();
}