Compilare: main.cpp: In function 'void adauga(const std::string&, int, Node*&, int)': main.cpp:29:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | if(idx < word.size()) | ~~~~^~~~~~~~~~~~~ main.cpp: In function 'void sterge(const std::string&, Node*, int)': main.cpp:38:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | if(idx == word.size()) | ~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:59:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(int j = 0; j < word.size(); j++) | ~~^~~~~~~~~~~~~ main.cpp:67:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for(int j = 0; j < word.size(); j++) | ~~^~~~~~~~~~~~~