Compilare: user.cpp: In function ‘std::vector<std::pair<std::pair<int, int>, std::pair<int, int> > > analyze(int, int)’: user.cpp:25:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<segs.size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:122:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<points.size();i++) ^ user.cpp:129:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<points.size();i++) ^ user.cpp:137:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((which!=0)&&(which!=zones.size())) ^