Compilare: user.cpp: In function ‘void DFS(int, int)’: user.cpp:22:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[k].size(); ++i) { ^ user.cpp:31:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[k].size(); ++i) { ^ user.cpp:34:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<aux[urm].size(); ++j) { ^ user.cpp:50:22: warning: ‘SOLmax’ may be used uninitialized in this function [-Wmaybe-uninitialized] sol[k]=SOLmax; ap[k]=apMax; ind[k]=IND; ^ user.cpp:47:51: warning: ‘urm’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if (M[URM][U]==apMax && IND > ind[urm]) IND=k, SOLmax=U; ^