How many bytes are occupied by near, far and huge pointers (DOS)?

How many bytes are occupied by near, far and huge pointers (DOS)?

2) What will be the output of the following C code?

 #include <stdio.h>
 void main()
 {
    int x = 0;
    int *ptr = &5;
    printf("%p\n", ptr);
 }

3) What will be the output of the following C code?

 #include <stdio.h>
 int main()
 {
    int i = 10;
    void *p = &i;
    printf("%f\n", *(float*)p);
    return 0;
 }

4) The operator used to get value at address stored in a pointer variable is

5) Comment on the following C statement.

  const int *ptr;