Compilare: main.cpp: In function 'int DFS(int, int)': main.cpp:14:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | for(int i=0;i<V[no].size();i++) | ~^~~~~~~~~~~~~ main.cpp:20:1: warning: no return statement in function returning non-void [-Wreturn-type] 20 | } | ^