Compilare: main.cpp: In function 'int readNr()': main.cpp:18:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | while (p < s.size() && isdigit(s[p])) | ~~^~~~~~~~~~ main.cpp: In function 'std::vector<int> expresie()': main.cpp:27:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | while (p < s.size() && (isdigit(s[p]) || s[p] == '(' || s[p] == '[' || s[p] == '-')) { | ~~^~~~~~~~~~ main.cpp: In function 'int factor()': main.cpp:71:1: warning: control reaches end of non-void function [-Wreturn-type] 71 | } | ^