Write a function that calculates \(x^y\) using recursion.

$$x^y=\Bigg\{\begin{array}{c c c}1&if & y=0\\x \times x^{Y-1} & if & y>0\\ \frac{1}{x^{-y}} & if & y < 0\end{array}$$

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

double pow(double base, int expo)
{
    	if(expo == 0)
        	return 1;
  	if(expo > 0)
        	return base * pow(base, expo - 1);
	return 1 / pow(base, -expo);
}

void main()
{
 	double base;
    	int expo;
	
    	printf("Enter thr base: ");
    	scanf("%lf", &base);
    	printf("Enter thr exponent: ");
    	scanf("%d", &expo);
    
    	printf("%.2lf ^ %d = %f", base, expo, pow(base, expo));	
 
	getch();
}