void f() {
  int x;
  int y;
  int *p;
  int *q;
  x = 3;
  y = x+1;
  p = &x;
  q = p;
  q = &y;
  *q = *p;
  q = 0;
  /*  *q = 4; */
}
void f1(int* p) {
   *p = 5;
}
void f2() {
  int x[3];
  x[0] = 5;
  //  (&x)[0] = 5;
  *x = 5;
  *(x+0) = 5;
  f1(x);
  //  f1(&x);
  //  x = &x[2];
  {int *p = &x[2];}
}
int main(int argc, char**argv) {
  f();
  return 0;
}