Eroare de compilare: main.cpp:9:13: error: expected type-specifier before '(' token 9 | int operator(char c) { | ^ main.cpp: In function 'int main()': main.cpp:54:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for (int i = 0; i < s.size(); i++) { | ~~^~~~~~~~~~ main.cpp:58:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | while (i < s.size() && isdigit(s[i])) { | ~~^~~~~~~~~~ main.cpp:79:50: error: expected type-specifier before '(' token 79 | while (!operatori.empty() && operator(operatori.top()) >= operator(s[i])) | ^ main.cpp:79:79: error: expected type-specifier before '(' token 79 | while (!operatori.empty() && operator(operatori.top()) >= operator(s[i])) | ^ Non zero exit status: 1