Compilare: user.cpp: In member function ‘cTree* cExpressionTree::generateTree(std::__cxx11::string)’: user.cpp:78:21: warning: unused variable ‘priorityc’ [-Wunused-variable] int priorityc = priority(c); ^~~~~~~~~ user.cpp:79:21: warning: unused variable ‘priorityceva’ [-Wunused-variable] int priorityceva = priority(ceva); ^~~~~~~~~~~~ user.cpp:64:13: warning: variable ‘size’ set but not used [-Wunused-but-set-variable] int size = 0; ^~~~ user.cpp:62:9: warning: unused variable ‘counter’ [-Wunused-variable] int counter = 0; ^~~~~~~