Compilare: user.cpp: In member function ‘i64 convex_hull_trick::get_max(i64)’: user.cpp:36:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < h.size(); ++i) ^ user.cpp: In member function ‘convex_hull_trick::hull convex_hull_trick::merge(const convex_hull_trick::hull&, const convex_hull_trick::hull&)’: user.cpp:116:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < a.v.size() && j < b.v.size()) ^ user.cpp:116:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < a.v.size() && j < b.v.size()) ^ user.cpp:124:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < a.v.size()) ^ user.cpp:126:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (j < b.v.size()) ^