#include <stdio.h>
#include <stdlib.h>
int f(int *d, int c, int b, int *a);
int main(void){
int a=1, b=3, c=2, d=4, e=5;
e = f(&a, f(&b,a,e,&c), e, &d);
printf("a =%d b=%d c=%d d=%d...