Compilare: main.cpp: In function 'std::set<int> evaluare()': main.cpp:18:14: warning: array subscript has type 'char' [-Wchar-subscripts] while(s[p]=='+') ^ main.cpp: In function 'std::set<int> factor()': main.cpp:29:14: warning: array subscript has type 'char' [-Wchar-subscripts] while(s[p]=='*') ^ main.cpp: In function 'std::set<int> termen()': main.cpp:39:11: warning: array subscript has type 'char' [-Wchar-subscripts] if(s[p]=='(') ^ main.cpp:46:28: warning: array subscript has type 'char' [-Wchar-subscripts] t=atribuire(s[p]); ^