/in/foo.cc: In constructor 'SeqList::SeqList(int)':
/in/foo.cc:15:30: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   15 |         for (size_t i = 0; i < n; ++i) {
      |                            ~~^~~
/in/foo.cc: In member function 'void SeqList::find(int)':
/in/foo.cc:27:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |                 for(int k=0;k<data.size();k++){
      |                             ~^~~~~~~~~~~~