C++ wizard needed

Question

in this code:
https://code.sololearn.com/chqh3QyLmK13/#cpp

can someone explain to me why this works ?

Question 1:
I dont need ' " ' when using ' # ' in the defines but why ? Is there more define magic i dont know about ? ^^

Question 2:
Obviously why is it the first statement that gets printed instead of the second? this "C > C++" should be 1 > 1 and after the comparison C should be 2 ? or is the ++ effecting the first one but not the second ?

thx for your time and explainations in advance

Answer 1

Q1: https://godbolt.org/g/Pdg6r5
At label LC0, a string is defined:
.LC0:
.string "C > C++"
main:

Q2: The statement evaluates to:
if 2 > 1
You can insert
cout << C << endl << C++ << endl;
to prove this.

You can see some sample assembly explanations / breakdown in this StackOverflow answer:
https://stackoverflow.com/a/17801883