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#include <stdio.h>
#include <stdlib.h>
main(){
int x, *p;
p = &x; /* initialise pointer */
*p = 0; /* set x to zero */
printf("x is %d\n", x);
printf("*p is %d\n", *p);
*p += 1; /* increment what p points to */
printf("x is %d\n", x);
(*p)++; /* increment what p points to */
printf("x is %d\n", x);
exit(EXIT_SUCCESS);
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