Compilare: user.cpp: In function ‘void Dfs(int, int)’: user.cpp:28:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < G[nod].size(); ++i) { ^ user.cpp: In function ‘void Afisare()’: user.cpp:59:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < sol[i].size(); ++j) ^