/in/foo.cc: In function 'std::string divide(std::string, int)':
/in/foo.cc:20:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |     for (int i = 0; i < num.size(); ++i) {
      |                     ~~^~~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:59:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |    for(int j=0;j<result.size();++j)
      |                ~^~~~~~~~~~~~~~