Compilare: user.cpp: In function ‘int main()’: user.cpp:22:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i <= n; ++i) { ^ user.cpp:39:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (dif < k && H.size()) { ^ user.cpp:43:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (y > dif - k) ^ user.cpp:34:68: warning: ‘rep’ may be used uninitialized in this function [-Wmaybe-uninitialized] H.push (make_pair ((*it).first, (n - (*it).second + 1) / rep)); ^