To find smallest among three using function with pointers

#include<stdio.h>
#include<conio.h>
int small(int *a, int *b, int *c);
void main()
{
int num1, num2, num3, smallnum;
clrscr();
printf("Enter the 3 numbers\n");
scanf("%d%d%d",&num1, &num2, &num3);
smallnum = small (&num1, &num2, &num3);
printf("Smallest number = %d", smallnum);
getch();
}

int small(int *a, int *b, int *c)
{
int result = *a;
if ( *a > *b)
result = *b;
if (result > *c)
result = *c;
return result;

}