Compilare: main.cpp: In member function 'void Graf::bfs2(int)': main.cpp:139:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 139 | for (int i = 0; i < lista[x].size(); i++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs(int, std::vector<int>&)': main.cpp:183:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 183 | for (int i = 0; i < lista[x].size() && ok == false; i++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp:192:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 192 | else if (i == lista[x].size() - 1) { st.pop(); } | ~~^~~~~~~~~~~~~~~~~~~~~~