Compilare: user.cpp: In function ‘void dfs(int, int)’: user.cpp:38:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < graf[nod].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:80:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < eBiconex[i].size(); j++) ^