Compilare: main.cpp: In function 'int dfs(int, int)': main.cpp:57:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for (int i = 0 ; i < v[nod].size () ; i++) | ~~^~~~~~~~~~~~~~~~ main.cpp:63:1: warning: no return statement in function returning non-void [-Wreturn-type] 63 | } | ^