foo.cc: In function 'int main()':
foo.cc:46:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for (int i = 0; i < result.size(); i ++ )
      |                         ~~^~~~~~~~~~~~~~~
foo.cc:50:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |             if (i != result.size() - 1) cout << '*';
      |                 ~~^~~~~~~~~~~~~~~~~~~~

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