Compilare: user.cpp: In function ‘void Fill()’: user.cpp:69:9: warning: variable ‘p’ set but not used [-Wunused-but-set-variable] int p; ^ user.cpp: In function ‘void Solve()’: user.cpp:151:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( V[i].size() < k ) ^ user.cpp:161:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( V[*it].size() < k ) ^ user.cpp:149:9: warning: variable ‘aux4’ set but not used [-Wunused-but-set-variable] int aux4; ^ user.cpp: In function ‘void Vecini()’: user.cpp:132:43: warning: ‘aux’ may be used uninitialized in this function [-Wmaybe-uninitialized] V[aux].insert(aux2); ^