/in/foo.cc: In function 'int main()':
/in/foo.cc:36:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<NumInfo>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for (int i = 0; i < numInfos.size(); ++i) {
      |                         ~~^~~~~~~~~~~~~~~~~
/in/foo.cc:38:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<NumInfo>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |             if (i < numInfos.size() - 1) {
      |                 ~~^~~~~~~~~~~~~~~~~~~~~