Compilare: user.cpp: In member function ‘void Aib::upd(int, int)’: user.cpp:20:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(; x < cnt.size(); x += x & -x) ^ user.cpp: In function ‘void cnt(std::vector<segm>, const std::vector<range>&, std::vector<int>&, int)’: user.cpp:42:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(poz < segm_x.size() && segm_x[poz].x - i.x >= delta) ^ user.cpp:50:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(poz < segm_x.size() && segm_x[poz].x - i.x >= delta) ^