---

Lỗi biên dịch:

Main.cc: In function ‘int main()’:
Main.cc:11:5: error: ‘count’ was not declared in this scope
     count <<"so tien it nhat can mang theo la " << ((A*X)+(B*Y));
     ^~~~~
Main.cc:11:5: note: suggested alternative: ‘round’
     count <<"so tien it nhat can mang theo la " << ((A*X)+(B*Y));
     ^~~~~
     round