foo.cc: In function 'std::vector<int> input(int)':
foo.cc:32:24: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   32 |         if (vect.size()==n)
      |             ~~~~~~~~~~~^~~

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