Compilare: user.cpp: In function ‘void DFS(int, int)’: user.cpp:18:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v[nod].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:61:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < componenta.size(); i++) ^ user.cpp:63:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < componenta[i].size(); j++) ^