Compilare: main.cpp: In function 'void folder()': main.cpp:17:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | while (i < s.size() and s[i] != ')') | ~~^~~~~~~~~~ main.cpp: In function 'void content()': main.cpp:31:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | while (i < s.size() and s[i] != ',' and s[i] != '(' and s[i] != ')') | ~~^~~~~~~~~~ main.cpp:45:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for (int j = 0; j <= nume.size(); j++) | ~~^~~~~~~~~~~~~~ main.cpp:55:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for (int j = 0; j <= nume.size(); j++) | ~~^~~~~~~~~~~~~~