Compilare: main.cpp: In function 'void add(Node*, std::string, int)': main.cpp:26:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(int i = 0; i < str.size(); i++){ | ~~^~~~~~~~~~~~ main.cpp: In function 'void InverseBFS(Node*, std::vector<int>&)': main.cpp:68:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for(int i = 0; i < akt->ends.size(); i++){ | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:93:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 93 | for(int i = 0; i < A.size(); i++){ | ~~^~~~~~~~~~