foo.cc: In member function 'void Vector3Array::SelectSort()':
foo.cc:53:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Vector3>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for(int i=0;i<Vs.size()-1;i++)
      |                     ~^~~~~~~~~~~~
foo.cc: In member function 'void Vector3Array::Output()':
foo.cc:66:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Vector3>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |         for(int i=0;i<Vs.size();i++)
      |                     ~^~~~~~~~~~

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