Compilare: user.cpp: In function ‘int main()’: user.cpp:81:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<ciup.size(); i++){ ^ user.cpp:86:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=i+1; j<ciup.size(); j++){ ^ user.cpp:73:24: warning: variable ‘aa’ set but not used [-Wunused-but-set-variable] long long int sol, aa, bvb, cc; ^ user.cpp:73:28: warning: variable ‘bvb’ set but not used [-Wunused-but-set-variable] long long int sol, aa, bvb, cc; ^ user.cpp:73:33: warning: variable ‘cc’ set but not used [-Wunused-but-set-variable] long long int sol, aa, bvb, cc; ^