21.
Find the output of the following program.
void main()
{
   printf("%d, %d", sizeof(int *), sizeof(int **));
}

22.
Find the output of the following program.
void main()
{
   int i=10;  /* assume address of i is 0x1234ABCD */
   int *ip=&i;
   int **ipp=&&i;
   printf("%x,%x,%x", &i, ip, *ipp);  
}

23.
Which of the following statements are true after execution of the program.
void main()
{
   int a[10], i, *p;
   a[0] = 1;
   a[1] = 2;
   p = a;
   (*p)++;
}

24.
What is the base data type of a pointer variable by which the memory would be allocated to it?

25.
What would be the output for the following Turbo C code?
#include<stdio.h>
void main()
{
   int a[]={ 1, 2, 3, 4, 5 }, *p;
   p=a;
   ++*p;
   printf("%d ", *p);
   p += 2;
   printf("%d", *p);
}