Compilare: user.cpp: In function ‘int cuplaj(int)’: user.cpp:18:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(register int i=0;i<C[nod].size();i++){ ^ user.cpp:26:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(register int i=0;i<C[nod].size();i++){ ^ user.cpp: In function ‘int main()’: user.cpp:38:20: warning: unused variable ‘j’ [-Wunused-variable] register int i,j,x,y; ^ user.cpp:52:13: warning: ‘rez’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(rez) ^