foo.cc: In function 'int main()':
foo.cc:26:9: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |  while(i<va.size() && j<vb.size())
      |        ~^~~~~~~~~~
foo.cc:26:24: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |  while(i<va.size() && j<vb.size())
      |                       ~^~~~~~~~~~
foo.cc:31:9: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |  while(i<va.size()) vc.push_back(va[i++]);
      |        ~^~~~~~~~~~
foo.cc:32:9: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |  while(j<vb.size()) vc.push_back(vb[j++]);
      |        ~^~~~~~~~~~
foo.cc:33:16: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |  for(ll i = 0;i<vc.size();i++)
      |               ~^~~~~~~~~~

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