Compilare: main.cpp: In function 'double divide_et_impera(std::vector<std::pair<double, double> >)': main.cpp:58:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<points.size();i++) ~^~~~~~~~~~~~~~ main.cpp:65:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<pointsy.size()-1;i++) ~^~~~~~~~~~~~~~~~~ main.cpp:67:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=i+1;j<pointsy.size() && j<=i+8;j++) ~^~~~~~~~~~~~~~~