/in/foo.cc: In function 'void computeReachable()':
/in/foo.cc:29:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |         for (int i = 0; i < adj[u].size(); i++) {
      |                         ~~^~~~~~~~~~~~~~~
/in/foo.cc: In function 'void computeDP()':
/in/foo.cc:59:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |         for (int i = 0; i < adj[u].size(); i++) {
      |                         ~~^~~~~~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:146:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  146 |                 for (int i = 0; i < adj[u].size(); i++) {
      |                                 ~~^~~~~~~~~~~~~~~
/in/foo.cc:161:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  161 |                 for (int i = 0; i < adj[u].size(); i++) {
      |                                 ~~^~~~~~~~~~~~~~~
/in/foo.cc:167:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  167 |                     for (int i = 0; i < adj[u].size(); i++) {
      |                                     ~~^~~~~~~~~~~~~~~
/in/foo.cc:183:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  183 |                 for (int i = 0; i < adj[u].size(); i++) {
      |                                 ~~^~~~~~~~~~~~~~~
/in/foo.cc:199:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  199 |                 for (int i = 0; i < adj[u].size(); i++) {
      |                                 ~~^~~~~~~~~~~~~~~
/in/foo.cc:214:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  214 |                 for (int i = 0; i < adj[u].size(); i++) {
      |                                 ~~^~~~~~~~~~~~~~~
/in/foo.cc:230:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  230 |                     for (int i = 0; i < adj[u].size(); i++) {
      |                                     ~~^~~~~~~~~~~~~~~
/in/foo.cc:257:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  257 |             for (int i = 0; i < result_nodes.size(); i++) {
      |                             ~~^~~~~~~~~~~~~~~~~~~~~