#include
int sum(int x, int y)
{
return x + y;
}
int product(int x, int y)
{
return x * y;
}
int main()
{
int a = 13;
int b = 5;
int result = 0;
int (*pfun)(int, int);
pfun = sum;
result = pfun(a, b);
printf("\npfun = sum result = %d", result);
pfun = product;
result = pfun(a, b);
printf("\npfun = product result = %d", result);
}