Compilare: main.cpp: In function 'std::ostream& operator<<(std::ostream&, Graf)': main.cpp:105:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::list<node_struct> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 105 | for(int i = 0; i < graf.listaAdiacenta.size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'int Graf::nrConexe()': main.cpp:116:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::list<node_struct> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 116 | for(int i = 0; i < listaAdiacenta.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::costuriBFS(int, std::ostream&)': main.cpp:128:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::list<node_struct> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 128 | for (int i = 0; i < listaAdiacenta.size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::sortareTopologica(std::ostream&)': main.cpp:138:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::list<node_struct> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 138 | for(int i = 0; i < listaAdiacenta.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:137:13: warning: unused variable 'nr' [-Wunused-variable] 137 | int nr = 0; | ^~ main.cpp: In member function 'void Graf::componenteBiconexe(std::ostream&)': main.cpp:152:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::list<node_struct> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 152 | for (int i = 0; i < listaAdiacenta.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:165:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 165 | for(int i = 0; i < muchiiCritice.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::componenteTareConexe(std::ostream&)': main.cpp:172:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::list<node_struct> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 172 | for(int i = 0; i < listaAdiacenta.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dijkstra(int, std::ostream&)': main.cpp:208:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 208 | for(int i = 0; i < distanta.size(); i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:216:25: warning: unused variable 'start' [-Wunused-variable] 216 | int noduri, muchii, start; | ^~~~~