Compilare: main.cpp: In member function 'void Graf::DFS(int, int&)': main.cpp:26:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for (int i=0; i<L[nod].size(); i++) { | ~^~~~~~~~~~~~~~ main.cpp: In member function 'int Graf::dijkstra(int, int)': main.cpp:46:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for (int i=0; i<L[nod].size(); i++) { | ~^~~~~~~~~~~~~~ main.cpp:63:5: warning: control reaches end of non-void function [-Wreturn-type] 63 | } | ^