Compilare: user.cpp: In function ‘std::pair<std::pair<long long int, long long int>, long long int> smal(long long int)’: user.cpp:25:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v.size(); i++) { ^ user.cpp:35:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v.size(); i++) ^ user.cpp:18:15: warning: variable ‘obt’ set but not used [-Wunused-but-set-variable] long long obt; ^ user.cpp:23:15: warning: unused variable ‘diff2’ [-Wunused-variable] long long diff2 = 0; ^ user.cpp: In function ‘int main()’: user.cpp:66:25: warning: unused variable ‘T’ [-Wunused-variable] long long C,n,p1,p2,T; ^