Compilare: main.cpp: In function 'int dfs(int)': main.cpp:15:1: warning: no return statement in function returning non-void [-Wreturn-type] 15 | } | ^ main.cpp:9:5: warning: infinite recursion detected [-Winfinite-recursion] 9 | int dfs (int nod) | ^~~ main.cpp:14:16: note: recursive call 14 | dfs(u); | ~~~^~~