Compilare: main.cpp: In member function 'void graph::Dfs(int)': main.cpp:20:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for( int i = 0; i < ad[node].size(); ++i ) { | ~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graph::BfsTraversal(int)': main.cpp:72:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | for( int i = 0; i < ad[u].size(); ++i ) { | ~~^~~~~~~~~~~~~~