routing: cleanup tsp_circuit_board

Author: Mizux

ortools/routing/samples/TspCircuitBoard.cs

@@ -122,7 +122,7 @@ static void PrintSolution(in RoutingModel routing, in RoutingIndexManager manage
             routeDistance += routing.GetArcCostForVehicle(previousIndex, index, 0);
         }
         Console.WriteLine("{0}", manager.IndexToNode((int)index));
-        Console.WriteLine("Route distance: {0}m", routeDistance);
+        Console.WriteLine("Route distance: {0}mm", routeDistance);
     }
     // [END solution_printer]
 

ortools/routing/samples/tsp_circuit_board.cc

@@ -120,7 +120,7 @@ void PrintSolution(const RoutingIndexManager& manager,
     distance += routing.GetArcCostForVehicle(previous_index, index, int64_t{0});
   }
   LOG(INFO) << route.str() << manager.IndexToNode(index).value();
-  LOG(INFO) << "Route distance: " << distance << "miles";
+  LOG(INFO) << "Route distance: " << distance << "mm";
   LOG(INFO) << "";
   LOG(INFO) << "Advanced usage:";
   LOG(INFO) << "Problem solved in " << routing.solver()->wall_time() << "ms";

ortools/routing/samples/tsp_circuit_board.py

@@ -115,7 +115,7 @@ def print_solution(manager, routing, solution):
         index = solution.Value(routing.NextVar(index))
         route_distance += routing.GetArcCostForVehicle(previous_index, index, 0)
     plan_output += f" {manager.IndexToNode(index)}\n"
-    plan_output += f"Route distance: {route_distance}m\n"
+    plan_output += f"Route distance: {route_distance}mm\n"
     print(plan_output)
     # [END solution_printer]