Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:18:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < G[nod].size(); i++) ^ user.cpp: In function ‘void dfsF(int)’: user.cpp:28:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0 ; i < GT[nod].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:69:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < sol[i].size(); j++) ^