Compilare: user.cpp: In function ‘void DFS(int)’: user.cpp:42:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0 ; i < muchii[nod].size() ; i++ ) ^ user.cpp: In function ‘int main()’: user.cpp:65:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int j = 0 ; j < muchii[x].size() ; j++ ) ^