int main(){
    //(0,0)->(2,0) and (1,1)->(3,1)
    Segment l1(Point(0, 0), Point(2, 2));
    Segment l2(Point(0, 0), Point(2, 0));
    cout<<l1<<endl;
    cout<<l2<<endl;
    cout<<boolalpha;
    cout<<"angle = "<<l1.angle(l2)<<endl;
    cout<<"isParallel = "<<l1.isParallel(l2)<<endl;
    cout<<"minDis = "<<l1.minDis(l2)<<endl;
    cout<<"doIntersect = "<<l1.doIntersect(l2)<<endl;
    cout<<"intersectPoint = "<<l1.intersectPoint(l2)<<endl;
    cout<<"inSegment = "<<l2.isInSegment(Point(0, 0))<<endl;
    return 0;
}