Compilare: user.cpp: In function ‘int verif(double, int)’: user.cpp:36:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<v.size();i++){ ^ user.cpp: In function ‘double panta(double, int)’: user.cpp:53:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<v.size();i++){ ^ user.cpp: In function ‘int main()’: user.cpp:110:20: warning: ‘b1’ may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<a1<<' '<<b1<<' '; ^