float power Calculation

#include <stdio.h>
#include <stdlib.h>


float power (float a, int n);
void main()
{
    float a, p;
    int n;
    printf("Enter a and n\n") ;
    scanf("%f%d",&a,&n) ;
    p=power(a,n) ;
    printf("%f raised. to power %d is %f\n",a,n,p);
}
float power(float a, int n)
{

 if(n==0)
    return(1);
 else
    return(a*power(a,n-1));
}

output::
Enter a and n
5
2

5.000000 raised. to power 2 is 25.000000