Compilare: user.cpp: In function ‘void luiza()’: user.cpp:39:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < G[nod].size(); i ++){ ^ user.cpp:30:13: warning: variable ‘cost’ set but not used [-Wunused-but-set-variable] int nod,cost; ^ user.cpp: In function ‘int main()’: user.cpp:67:20: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] v[poz] = -1; ^