Compilare: main.cpp: In function 'int dfs(int, int)': main.cpp:55:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for (int i = 0 ; i < v[nod].size () ; i++) | ~~^~~~~~~~~~~~~~~~ main.cpp:61:1: warning: no return statement in function returning non-void [-Wreturn-type] 61 | } | ^ main.cpp:50:5: warning: infinite recursion detected [-Winfinite-recursion] 50 | int dfs (int nod , int nivel) | ^~~ main.cpp:58:13: note: recursive call 58 | dfs (vecin , nivel + 1); | ~~~~^~~~~~~~~~~~~~~~~~~