Const is a declaration of constant, compiler will do appropriate checks during the compile time. #define is a macro compiler will see a value. Speaking in terms of memory const declaration could be more efficient:

const short x = 1;
// this will allocate 16 bits for x (actually it depends on the machine,
I assume unix platform with 32 bits integers)

#define x (short)1
// this will probably allocate 32 bits to hold the constant 1.

Use const instead of #define mainly because of compiler checks. And inline functions instead of macros as well. Preprocessor is the obsolete remnant from early C days, there's no use of it in the oop environment.
2)
no diffence realy in memory, both are compiled as numbers, but with const's you can define it per namespace or class so that you can use it like mylinklist::maxmemebers, it looks better and more readable.
3)
#define macro does not take any space on stack, but it gets replaced in the code by its definition thereby increasing the size of exe.

Constant variable occupies space on stack and does not increase the size of the exe.

excellent performance on this topic

الفرق بين const,#define

الفرق بين const,#define?

الفرق بين const,#define?

الفرق بين const,#define?

Once you have recreated the problem and captured these steps, you can save them to a file and send it to your support person, who can then open it up and view