/in/foo.cc: In member function 'bool Dinic::BFS()':
/in/foo.cc:59:30: 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<G[x].size(); i += 1){
      |                             ~^~~~~~~~~~~~
/in/foo.cc: In member function 'int Dinic::DFS(int, int)':
/in/foo.cc:74:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |         for (int & i = cur[x]; i<G[x].size(); i += 1){
      |                                ~^~~~~~~~~~~~