If I understand the problem, you seem to want to dynamically create
variable names (VectA to VectZ) and then use them without actually
typing out their names.
I don't think it is possible to do what you want in C++, unless you
are willing to use the preprocessor (which may obfuscate the code too
much for you) or possibly some advanced template magic (which may also
obfuscate the code too much for you).
You could try something different where instead of creating variables
VectA to VectZ, you create an array of vectors (or vector of vectors).
So instead of accessing VectA, VectB, ..., VectZ, you access Vect,
Vect, ..., Vect.