Compilare: main.cpp: In function 'void stergere(node*, std::string&, int)': main.cpp:54:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | if (poz == s.length()) | ~~~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:76:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | for (int i = 0; i < s.length(); i++) | ~~^~~~~~~~~~~~ main.cpp:83:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for (int i = 0; i < s.length(); i++) | ~~^~~~~~~~~~~~