/in/foo.cc: In function 'std::vector<int> SetInter(int*, int, int*, int)':
/in/foo.cc:7:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |         for (int j = 0; j < result.size(); ++j) {
      |                         ~~^~~~~~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:40:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |     for (int i = 0; i < inter1.size(); ++i) {
      |                     ~~^~~~~~~~~~~~~~~
/in/foo.cc:47:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |     for (int i = 0; i < inter2.size(); ++i) {
      |                     ~~^~~~~~~~~~~~~~~