Compilare: main.cpp: In constructor 'Graf_orientat::Graf_orientat(int, int, std::vector<std::vector<int> >, std::vector<std::vector<int> >)': main.cpp:67:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for (int i = 0; i < Lista_de_adiacenta.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:68:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for (int j = 0; j < Lista_de_adiacenta[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:77:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for (int i = 0; i < Lista_de_adiacenta.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:78:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 78 | for (int j = 0; j < Lista_de_adiacenta[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'virtual void Graf_orientat::afisare(std::ostream&)': main.cpp:100:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 100 | for (int i = 1; i < Lista_de_adiacenta.size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:102:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 102 | for (int j = 0; j < Lista_de_adiacenta[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In constructor 'Graf_neorientat::Graf_neorientat(int, int, std::vector<std::vector<int> >, std::vector<std::vector<int> >)': main.cpp:165:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 165 | for (int i = 0; i < Lista_de_adiacenta.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:166:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 166 | for (int j = 0; j < Lista_de_adiacenta[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:175:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 175 | for (int i = 0; i < Lista_de_adiacenta.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:176:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 176 | for (int j = 0; j < Lista_de_adiacenta[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'virtual void Graf_neorientat::afisare(std::ostream&)': main.cpp:207:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 207 | for (int i = 1; i <Lista_de_adiacenta.size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:209:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 209 | for (int j = 0; j < Lista_de_adiacenta[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf_neorientat::Afla_distante_dfs(int, std::vector<int>&, std::vector<int>&)': main.cpp:728:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 728 | for (int i = 0; i < Lista_de_adiacenta[Nod_start].size(); i++)///parcurgem vecinii nodului | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int Afla_nod_cu_distanta_maxima_din_vector(std::vector<int>)': main.cpp:740:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 740 | for (int i = 1; i<Distante.size(); i++) | ~^~~~~~~~~~~~~~~~ main.cpp:746:8: warning: 'nod' may be used uninitialized in this function [-Wmaybe-uninitialized] 746 | return nod;