int a,b;          // Declares Variables a and b as int
int *c,*d;        // Declares variables c and d as pointers to ints

a = 5;            // a is now 5
b = 10;           // b is now 10
c = &a;           // c points to a now
d = &b;           // d points to b now
a++;              // a is increased by one, a is 6 now
(*d)++;           // whatever d points to (b) is increased, b is 11 now
d = &a;           // d points to a now
(*d)--;           // whatever d points to (a) id decreased, a is 5 now


What is stored in
a, b, c, d, *c, *d ?

Possible answers (may occur multiple times):

3, 4, 5, 6, 7, 8, 9, 10, 11, 12, memory address

answers:
a = 5
b = 11
c = pointer to a / memory address of a
d = pointer to a / memory address of a
*c = what c points to = a = 5
*d = what d points to = a = 5