Compilare: main.cpp: In member function 'void graph::Dfs(int)': main.cpp:32:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for( int i = 0; i < ad[node].size(); ++i ) { | ~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graph::Dfs2(int, int, std::vector<std::vector<int> >&)': main.cpp:43:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for( int i = 0; i < ad[node].size(); ++i ) { | ~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graph::Dfs3(int)': main.cpp:75:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | for( int i = 0; i < ad[node].size(); ++i ) { | ~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graph::Dfs4(int, std::vector<int>&)': main.cpp:88:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 88 | for( int i = 0; i < reverseAd[node].size(); ++i ) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'bool graph::Dfs5(int)': main.cpp:99:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | for( int i = 0; i < ad[nod].size(); ++i ) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'bool graph::isReachable()': main.cpp:131:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 131 | for( int i = 0; i < ad[u].size(); ++i ) { | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'bool graph::Bfs()': main.cpp:165:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 165 | for( int i = 0; i < ad[u].size(); ++i ) { | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'void graph::bfsTraversal(int)': main.cpp:260:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 260 | for( int i = 0; i < ad[u].size(); ++i ) { | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'int graph::maxFlow()': main.cpp:345:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 345 | for( int i = 0; i < ad[N].size(); ++i ) { | ~~^~~~~~~~~~~~~~ main.cpp: In static member function 'static bool graph::HavelHakimiUtillity(std::vector<int>)': main.cpp:375:31: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 375 | if( degree.back() > degree.size() - 1 ) | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'bool graph::isEulerian()': main.cpp:414:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 414 | for( int i = 0; i < ad.size(); ++i ) | ~~^~~~~~~~~~~ main.cpp: In member function 'std::vector<int> graph::eulerCycle()': main.cpp:444:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 444 | for( int i = 0; i < ad[w].size(); ++i ) | ~~^~~~~~~~~~~~~~