Answer P8

*pa=44 *pb=66
a=66 b=66

#include <stdio.h>
int main( void )
{
  int  a = 44 ;
  int  b = 66 ;
  int *pa, *pb ;
  
  pa = &a ; 
  pb = &b ; 
  printf("*pa=%d *pb=%d\n", *pa, *pb );
  
  *pa = *pb ; 
  printf("a=%d b=%d\n", a, b );

  return 0;
}

The statement *pa = *pb is performed in two steps (as are all assignment statements):

Step 1: The expression on the right of the = is evaluated. *pb evaluates to 66.

Step 2: The expression on the left of the = determines where to put the 66. The *pa says to follow the pointer in pa, so the 66 is put in the variable a, replacing what was there.