Compilare: user.cpp: In member function ‘std::pair<int, int> ModuloDestroyer::chinese_remainder_theorem(const std::vector<int>&, const std::vector<int>&)’: user.cpp:275:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < x.size(); i++) { ^ user.cpp: In member function ‘void ModuloDestroyer::run_tests()’: user.cpp:89:65: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define re(II, NN) for (int II(0), _NN(NN); (II) < (NN); ++(II)) ^ user.cpp:318:5: note: in expansion of macro ‘re’ re (i, big_primes.size()) ^ user.cpp:89:46: warning: unused variable ‘_NN’ [-Wunused-variable] #define re(II, NN) for (int II(0), _NN(NN); (II) < (NN); ++(II)) ^ user.cpp:318:5: note: in expansion of macro ‘re’ re (i, big_primes.size()) ^ user.cpp: In function ‘int main()’: user.cpp:89:46: warning: unused variable ‘_NN’ [-Wunused-variable] #define re(II, NN) for (int II(0), _NN(NN); (II) < (NN); ++(II)) ^ user.cpp:337:3: note: in expansion of macro ‘re’ re (i, N) { ^