RoutingStrategy.h

#ifndef ROUTING_STRATEGY_H_
#define ROUTING_STRATEGY_H_
 
#include <optional>
#include <vector>
 
namespace routing {
class Graph;
class RoutingStrategy {
 public:
  virtual std::optional<std::vector<int>> getPath(const Graph&, int,
                                                  int) const = 0;
};
}  // namespace routing
 
#endif  // ROUTING_STRATEGY_H_