Compilare: user.cpp: In function ‘void DFS(int)’: user.cpp:29:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[nod].size(); i++) ^ user.cpp: In function ‘void DFS_T(int)’: user.cpp:38:37: 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:56:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < CtC[i].size(); j++) ^