Compilare: main.cpp: In function 'void DFS(int, int)': main.cpp:33:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int u=0;u<G[node].size();++u) ~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:74:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<bic[i].size();++j) ~^~~~~~~~~~~~~~ main.cpp:74:10: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int j=0;j<bic[i].size();++j) ^~~ main.cpp:76:11: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' g<<"\n"; ^