Eroare de compilare: main.cpp: In function 'int main()': main.cpp:20:28: error: invalid use of member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::length() const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type = long unsigned int]' (did you forget the '()' ?) if (str1.length()>str2.length) ~~~~~^~~~~~ main.cpp:26:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1;i<str1.length();++i) ~^~~~~~~~~~~~~~ main.cpp:31:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<str1.length();++i) ~^~~~~~~~~~~~~~ main.cpp:44:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=str1.length();i<str2.length();++i) ~^~~~~~~~~~~~~~ Non zero exit status: 1