Compilare: user.cpp: In function ‘void DFS(int, int, int)’: user.cpp:59:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < edge[node].size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:91:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < biconex_components.size(); ++i) ^ user.cpp:93:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < biconex_components[i].size(); ++j) ^