Compilare: user.cpp: In function ‘int punctInPoligon(std::pair<int, int>, std::vector<std::pair<int, int> >)’: user.cpp:70:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<v.size()-1;i++) { ^ user.cpp: In function ‘int main()’: user.cpp:118:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<V[i].size();j++) { ^ user.cpp:119:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (k = 0; k<R.size(); k++) { ^ user.cpp:126:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (t=0;t<R.size();t++) { ^ user.cpp:164:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<V[i].size(); j++) ^ user.cpp:180:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=2;j<V[i].size();j++) { ^ user.cpp:195:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<V[i].size();j++) { ^ user.cpp:241:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<L[nod].size();i++) { ^ user.cpp:92:9: warning: unused variable ‘test’ [-Wunused-variable] int test = det(make_pair(0,0),make_pair(1,0),make_pair(1,1)); ^