#include<stdio.h>intmain(){inta;int*b;int*c;a=42;b=&a;c=NULL;printf("%d\n",*b);if(b==NULL)printf("b is NULL\n");elseprintf("b is not NULL\n");if(c==NULL)printf("c is NULL\n");elseprintf("c is not NULL\n");return0;}/* vim: set expandtab ts=4 sw=3 sts=3 tw=80 :*/