Compilare: user.cpp: In function ‘int main()’: user.cpp:88:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (!gol() && prio[top()]>=prio[sir[i]]) { ^ user.cpp:88:54: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (!gol() && prio[top()]>=prio[sir[i]]) { ^ user.cpp:125:18: warning: variable ‘da’ set but not used [-Wunused-but-set-variable] char da; ^ user.cpp:126:17: warning: variable ‘rez’ set but not used [-Wunused-but-set-variable] int rez; ^