C++ Basic Set 1

20. What's the difference between C and C++?

21. What does Public and Private mean in C++

22. Is it possible to keep 2 stacks in a single array, if one grows from position one of the array, and the other grows from the last position. Write a procedure PUSH(x,s) that pushes element x onto stack S, where S is one or the other of these two stacks. Include all necessary error checks