Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:18:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<g[nod].size(); ++i) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:109:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (int j=2; j<=c; ++j) ^~~ main.cpp:115:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' cout<<cul<<" "<<nrap/2<<"\n"; ^~~~