Compilare: user.cpp: In function ‘double solve_median(int, double, int, int, std::vector<Point>&, int)’: user.cpp:24:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size(); ++i) ^ user.cpp:25:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = i + 1; j < v.size() && j <= i + 5; ++j) { ^