Compilare: main.cpp: In function 'int dfs(int)': main.cpp:11:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 11 | for(int i=0;i<adj[start].size();i++){ | ~^~~~~~~~~~~~~~~~~~ main.cpp:17:1: warning: no return statement in function returning non-void [-Wreturn-type] 17 | } | ^ main.cpp:9:5: warning: infinite recursion detected [-Winfinite-recursion] 9 | int dfs(int start){ | ^~~ main.cpp:13:16: note: recursive call 13 | dfs(adj[start][i]); | ~~~^~~~~~~~~~~~~~~