foo.cc: In function 'int main()':
foo.cc:28:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         for(int i=0;i<p.size();i++){
      |                     ~^~~~~~~~~
foo.cc:29:41: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |                 std::cout<<p[i]<<" \n"[i==p.size()-1];
      |                                        ~^~~~~~~~~~~~

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