Example #1
0
        public void TestRotateRightRecolor()
        {
            RBTree <int> tree = new RBTree <int>();

            tree.Insert(10);
            tree.Insert(5);
            tree.Insert(15);
            tree.Insert(3);
            tree.Insert(2);
            tree.Insert(1);
            VerifyTree(tree);
        }
Example #2
0
        public void TestRemoveBlackSiblingRedBlackNephewMirror()
        {
            //case 3-2, 4-2
            RBTree <int> tree = new RBTree <int>();

            tree.Insert(10);
            tree.Insert(5);
            tree.Insert(15);
            tree.Insert(3);
            tree.Insert(8);
            tree.Insert(12);
            tree.Insert(18);
            tree.Insert(9);
            tree.Insert(13);
            tree.Remove(18);
            int result = 0;

            if (tree.Find(18, out result))
            {
                Assert.Fail();
            }
            VerifyTree(tree);
        }
Example #3
0
        public void TestRemoveBlackSiblingNephewRed()
        {
            //case 1
            RBTree <int> tree = new RBTree <int>();

            tree.Insert(11);
            tree.Insert(2);
            tree.Insert(14);
            tree.Insert(1);
            tree.Insert(7);
            tree.Insert(15);
            tree.Insert(5);
            tree.Insert(8);
            tree.Insert(4);
            tree.Remove(2);
            int result = 0;

            if (tree.Find(2, out result))
            {
                Assert.Fail();
            }
            VerifyTree(tree);
        }
        public void Insert100Keys_ContainsKeys_ReturnTrue()
        {
            RBTree <int> tree = new RBTree <int>(intComparison);
            int          size = 100;

            int[] keys = new int[size];
            for (int i = 0; i < size; i++)
            {
                keys[i] = i;
                tree.Insert(keys[i]);
            }

            bool containsAll = true;

            for (int i = 0; i < size; i++)
            {
                containsAll = containsAll && tree.Contains(keys[i]);
            }
        }
Example #5
0
        public void Test_RBTREE_DELETE()
        {
            RBTree rbTree = new RBTree();

            System.Collections.Generic.IList <IDirectoryEntry> repo = GetDirectoryRepository(25);


            foreach (var item in repo)
            {
                rbTree.Insert(item);
            }

            try
            {
                IRBNode n;
                rbTree.Delete(DirectoryEntry.Mock("5", StgType.StgInvalid), out n);
                rbTree.Delete(DirectoryEntry.Mock("24", StgType.StgInvalid), out n);
                rbTree.Delete(DirectoryEntry.Mock("7", StgType.StgInvalid), out n);
            }
            catch (Exception ex)
            {
                Assert.Fail("Item removal failed: " + ex.Message);
            }



            //    CFItem c;
            //    bool s = rbTree.TryLookup(new CFMock("7", StgType.StgStream), out c);


            //    Assert.IsFalse(s);

            //    c = null;

            //    Assert.IsTrue(rbTree.TryLookup(new CFMock("6", StgType.StgStream), out c));
            //    Assert.IsTrue(c.IsStream);
            //    Assert.IsTrue(rbTree.TryLookup(new CFMock("12", StgType.StgStream), out c));
            //    Assert.IsTrue(c.Name == "12");


            //}
        }
Example #6
0
        private IEnumerator Start()
        {
            RBTree <int> rbMap = new RBTree <int>();

            int[] nums = new int[100000];
            for (int i = 0; i < nums.Length; ++i)
            {
                nums[i] = i;
            }

            int counter = 0;

            while (true)
            {
                ++counter;

                //追加
                var sw = System.Diagnostics.Stopwatch.StartNew();
                for (int i = 0; i < nums.Length; ++i)
                {
                    rbMap.Insert(nums[i]);
                }
                sw.Stop();
                Debug.Log("Insert(" + nums.Length + ") is " + sw.ElapsedMilliseconds + " : Avg(" + counter + ") is " + (insertSum += sw.ElapsedMilliseconds) / counter);
                sw.Reset();

                //確認
                //Debug.Log(rbMap);

                //削除
                sw.Start();
                for (int i = 0; i < nums.Length; ++i)
                {
                    rbMap.Delete(nums[i]);
                }
                sw.Stop();
                Debug.Log("Delete(" + nums.Length + ") is " + sw.ElapsedMilliseconds + " : Avg(" + counter + ") is " + (deleteSum += sw.ElapsedMilliseconds) / counter);
                Debug.Log(rbMap);

                yield return(new WaitForSeconds(0.4f));
            }
        }
Example #7
0
        public void Test_RBTREE_INSERT()
        {
            RBTree rbTree = new RBTree();

            System.Collections.Generic.IList <IDirectoryEntry> repo = GetDirectoryRepository(25);

            foreach (var item in repo)
            {
                rbTree.Insert(item);
            }

            for (int i = 0; i < repo.Count; i++)
            {
                IRBNode c;
                rbTree.TryLookup(DirectoryEntry.Mock(i.ToString(), StgType.StgInvalid), out c);
                Assert.IsTrue(c is IDirectoryEntry);
                Assert.IsTrue(((IDirectoryEntry)c).Name == i.ToString());
                //Assert.IsTrue(c.IsStream);
            }
        }
Example #8
0
        private string InsertTimeTest()
        {
            sw = Stopwatch.StartNew();
            for (int i = 1; i <= count; i++)
            {
                tree.Insert(i);
                //DisplayTree();
            }

            /*tree.Insert(13);
            *  DisplayTree();
            *  tree.Insert(8);
            *  DisplayTree();
            *  tree.Insert(1);
            *  DisplayTree();
            *  tree.Insert(6);
            *  tree.Insert(11);
            *  tree.Insert(17);
            *  tree.Insert(15);
            *  tree.Insert(25);
            *  tree.Insert(22);
            *  tree.Insert(27);*/
            long elapsed  = sw.ElapsedMilliseconds;
            var  isPassed = true;
            var  treeList = tree.GetTree();

            for (int i = 1; i <= count; i++)
            {
                if (treeList.Contains(i))
                {
                    continue;
                }
                isPassed = false;
                break;
            }

            var tmp = isPassed ? "passed in " : "failer in ";

            return(tmp + elapsed + "ms");
        }
Example #9
0
 public void Add(TKey key, TValue value)
 {
     try
     {
         var tmp = array.Find(new Node()
         {
             Key = key, Value = value
         });
         if (tmp == null)
         {
             array.Insert(new Node {
                 Key = key, Value = value
             });
         }
         else
         {
             throw new ArgumentException();
         }
     }
     catch (ArgumentException ex)
     {
         Console.WriteLine("Exception: Key " + key + " is already exist: Add(" + key + "," + value + ")");
     }
 }
Example #10
0
        public void TestRemoveBlackSiblingRedMirror()
        {
            //case 1-2,2-2
            RBTree <int> tree = new RBTree <int>();

            tree.Insert(5);
            tree.Insert(3);
            tree.Insert(8);
            tree.Insert(2);
            tree.Insert(4);
            tree.Insert(1);
            tree.Remove(8);
            int result = 0;

            if (tree.Find(8, out result))
            {
                Assert.Fail();
            }
            VerifyTree(tree);
        }
Example #11
0
        public void TestRemoveBlackSiblingRed()
        {
            //case 1,2
            RBTree <int> tree = new RBTree <int>();

            tree.Insert(5);
            tree.Insert(3);
            tree.Insert(10);
            tree.Insert(7);
            tree.Insert(13);
            tree.Insert(14);
            tree.Remove(3);
            int result = 0;

            if (tree.Find(3, out result))
            {
                Assert.Fail();
            }
            VerifyTree(tree);
        }
Example #12
0
        /// <summary>
        /// Dijkstra in graph gr, from source to destination, using vehicle v.
        /// </summary>
        /// <param name="source"> the startpoint </param>
        /// <param name="destination"> the destination </param>
        /// <param name="v"> vehicle that is used </param>
        /// <returns></returns>
        public Route Dijkstra(long from, long to, Vehicle[] vehicles, RouteMode mode, bool useBus)
        {
            Route result = null;

            if (from == 0 || to == 0 || graph == null)
                return result;

            Node source = graph.GetNode(from);
            Node destination = graph.GetNode(to);

            //all nodes that are completely solved
            SortedList<long, Node> solved = new SortedList<long, Node>();

            //nodes that are encountered but not completely solved
            SortedList<double, Node> unsolved = new SortedList<double, Node>();

            RBTree<Node> prevs = new RBTree<Node>();
            RBTree<double> times = new RBTree<double>();
            RBTree<double> distances = new RBTree<double>();
            RBTree<Vehicle> vehicleUse = new RBTree<Vehicle>();
            ListTree<Vehicle> forbiddenVehicles = new ListTree<Vehicle>();
            List<Edge> abstractBusses = graph.GetAbstractBusEdges();

            Node current = source;
            bool found = false;

            //if there's no new current node it means the algorithm should stop
            while (current != null)
            {
                //if we encounter the destination it means we found the shortest route so we break
                if (current == destination)
                {
                    found = true;
                    break;
                }

                List<Edge> edges = new List<Edge>(graph.GetEdgesFromNode(current.ID));
                foreach (Edge busEdge in abstractBusses)
                {
                    if (busEdge.End == current.ID || busEdge.Start == current.ID)
                        edges.Add(busEdge);
                }

                Node prev = prevs.Get(current.ID);
                if (prev != null)
                {
                    foreach (Vehicle vehicle in forbiddenVehicles.Get(prev.ID))
                    {
                        forbiddenVehicles.Insert(current.ID, vehicle);
                    }
                }

                foreach (Edge e in edges)
                {
                    if (IsAllowed(e, vehicles, useBus))
                    {
                        Node start = graph.GetNode(e.Start);
                        Node end = graph.GetNode(e.End);
                        double distance = double.PositiveInfinity;
                        double time = double.PositiveInfinity;
                        Vehicle v = vehicles[0];

                        if (e.Type != CurveType.AbstractBusRoute)
                        {
                            if (e.Type != CurveType.Bus)
                            {
                                double speed = 0;
                                foreach (Vehicle vehicle in vehicles)
                                {
                                    if (!forbiddenVehicles.Get(current.ID).Contains(vehicle))
                                    {
                                        double vSpeed = GetSpeed(vehicle, e);
                                        if (vSpeed > speed && IsAllowed(e, vehicle, useBus))
                                        {
                                            speed = vSpeed;
                                            v = vehicle;
                                        }
                                    }
                                }

                                distance = NodeCalcExtensions.Distance(start, end);
                                time = distance / speed;
                            }
                            else if (e.Route != null)
                            {
                                // Take busroute if better
                                if (mode == RouteMode.Fastest && time > e.Route.Time || mode == RouteMode.Shortest && distance > e.Route.Length)
                                {
                                    distance = e.Route.Length;
                                    time = e.Route.Time;
                                    v = Vehicle.Foot;

                                    foreach (Vehicle vehicle in vehicles)
                                        if (vehicle != Vehicle.Foot)
                                            forbiddenVehicles.Insert(current.ID, vehicle);
                                }
                            }
                        }
                        else
                        {
                            Node n1 = null, n2 = null;
                            if (start.Longitude != 0 || start.Latitude != 0)
                                n1 = graph.GetNodeByPos(start.Longitude, start.Latitude, Vehicle.Bus);
                            if (end.Longitude != 0 || end.Latitude != 0)
                                n2 = graph.GetNodeByPos(end.Longitude, end.Latitude, Vehicle.Bus);

                            if (n1 != default(Node) && n2 != default(Node))
                            {
                                Curve curve = new Curve(new long[] { start.ID, end.ID }, e.Name);

                                Route r = this.Dijkstra(n1.ID, n2.ID, new Vehicle[] { Vehicle.Bus }, RouteMode.Fastest, false);
                                r = new Route(new Node[] { start }, Vehicle.Bus) + r + new Route(new Node[] { end }, Vehicle.Bus);

                                curve.Type = CurveType.Bus;
                                curve.Route = r;

                                // We calculate with 60 seconds of switch over to the bus.
                                r.Time += 60;

                                graph.AddWay(start.ID, curve);
                                graph.AddWay(end.ID, curve);

                                e.Route = r;
                                e.Type = CurveType.Bus;

                                // Take busroute if better
                                if (mode == RouteMode.Fastest && time > e.Route.Time || mode == RouteMode.Shortest && distance > e.Route.Length)
                                {
                                    distance = e.Route.Length;
                                    time = e.Route.Time;
                                    v = Vehicle.Foot;

                                    foreach (Vehicle vehicle in vehicles)
                                        if (vehicle != Vehicle.Foot)
                                            forbiddenVehicles.Insert(current.ID, vehicle);
                                }
                            }

                            graph.RemoveAbstractBus(e);
                            abstractBusses.Remove(e);
                        }

                        time += times.Get(current.ID);
                        double trueDist = distances.Get(current.ID) + distance;

                        if (!solved.ContainsValue(end) && current != end)
                        {
                            if (end.Latitude != 0 && end.Longitude != 0)
                            {
                                if (times.Get(end.ID) == 0 || distances.Get(end.ID) == 0)
                                {
                                    times.Insert(end.ID, double.PositiveInfinity);
                                    distances.Insert(end.ID, double.PositiveInfinity);
                                    vehicleUse.Insert(end.ID, v);
                                }

                                if ((mode == RouteMode.Fastest &&
                                    times.Get(end.ID) > time) ||
                                    (mode == RouteMode.Shortest &&
                                    distances.Get(end.ID) > trueDist))
                                {
                                    times.GetNode(end.ID).Content = time;
                                    distances.GetNode(end.ID).Content = trueDist;
                                    vehicleUse.GetNode(end.ID).Content = v;

                                    if (prevs.GetNode(end.ID).Content == null)
                                        prevs.Insert(end.ID, current);
                                    else
                                        prevs.GetNode(end.ID).Content = current;

                                    if (!unsolved.ContainsValue(end))
                                    {
                                        if (mode == RouteMode.Fastest)
                                        {
                                            // Very bad solution but I couldn't think of a simple better one.
                                            while (unsolved.ContainsKey(times.Get(end.ID)))
                                            {
                                                times.GetNode(end.ID).Content += 0.0000000001;
                                            }

                                            unsolved.Add(times.Get(end.ID), end);

                                        }
                                        else if (mode == RouteMode.Shortest)
                                        {
                                            // Very bad solution but I couldn't think of a simple better one.
                                            while (unsolved.ContainsKey(distances.Get(end.ID)))
                                            {
                                                distances.GetNode(end.ID).Content += 0.0000000001;
                                            }

                                            unsolved.Add(distances.Get(end.ID), end);
                                        }

                                        if (prevs.GetNode(current.ID).Content != null &&
                                            vehicleUse.Get(prevs.GetNode(current.ID).Content.ID) == Vehicle.Car)
                                        {
                                            if (v == Vehicle.Foot)
                                            {
                                                forbiddenVehicles.Insert(end.ID, Vehicle.Car);
                                            }
                                        }
                                    }
                                }
                            }
                        }
                        else if (!solved.ContainsValue(start) && current != start)
                        {
                            if (start.Latitude != 0 && start.Longitude != 0)
                            {
                                if (times.Get(start.ID) == 0 || distances.Get(start.ID) == 0)
                                {
                                    times.Insert(start.ID, double.PositiveInfinity);
                                    distances.Insert(start.ID, double.PositiveInfinity);
                                    vehicleUse.Insert(start.ID, v);
                                }

                                if ((mode == RouteMode.Fastest &&
                                    times.Get(start.ID) > time) ||
                                    (mode == RouteMode.Shortest &&
                                    distances.Get(start.ID) > trueDist))
                                {
                                    times.GetNode(start.ID).Content = time;
                                    distances.GetNode(start.ID).Content = trueDist;
                                    vehicleUse.GetNode(start.ID).Content = v;

                                    if (prevs.GetNode(start.ID).Content == null)
                                        prevs.Insert(start.ID, current);
                                    else
                                        prevs.GetNode(start.ID).Content = current;

                                    if (!unsolved.ContainsValue(start))
                                    {
                                        if (mode == RouteMode.Fastest)
                                        {
                                            // Very bad solution but I couldn't think of a simple better one.
                                            while (unsolved.ContainsKey(times.Get(start.ID)))
                                            {
                                                times.GetNode(start.ID).Content += 0.0000000001;
                                            }

                                            unsolved.Add(times.Get(start.ID), start);
                                        }
                                        else if (mode == RouteMode.Shortest)
                                        {
                                            // Very bad solution but I couldn't think of a simple better one.
                                            while (unsolved.ContainsKey(distances.Get(start.ID)))
                                            {
                                                distances.GetNode(start.ID).Content += 0.0000000001;
                                            }

                                            unsolved.Add(distances.Get(start.ID), start);
                                        }
                                    }

                                    if (prevs.GetNode(current.ID).Content != null &&
                                        vehicleUse.Get(prevs.GetNode(current.ID).Content.ID) == Vehicle.Car)
                                    {
                                        if (v == Vehicle.Foot)
                                        {
                                            forbiddenVehicles.Insert(start.ID, Vehicle.Car);
                                        }
                                    }
                                }
                            }
                        }
                    }
                }

                //dit zou niet voor moeten komen maar toch gebeurt het...
                if (!solved.ContainsKey(current.ID))
                    solved.Add(current.ID, current);

                if (unsolved.Count > 0)
                {
                    current = unsolved.Values[0];
                    unsolved.RemoveAt(0);
                }
                else
                {
                    current = null;
                }
            }

            if (found)
            {
                List<Node> nodes = new List<Node>();
                List<long> extras = graph.GetExtras();
                Node n = destination;

                List<long> busStartStop = new List<long>();

                do
                {
                    bool foundRoute = false;

                    if (extras.Contains(n.ID))
                    {
                        // Change straigt buslines in for the actual route.
                        foreach (Edge e in graph.GetEdgesFromNode(n.ID))
                        {
                            if (prevs.Get(n.ID) != null && e.Route != null)
                            {
                                if (n.ID == e.Start &&
                                    prevs.Get(n.ID).ID == e.End)
                                {
                                    Node[] busNodes = e.Route.Points;

                                    if (busNodes[0].ID == e.Start)
                                        Array.Reverse(busNodes);

                                    busStartStop.Add(busNodes[busNodes.Length - 1].ID);
                                    busStartStop.Add(busNodes[0].ID);
                                    nodes.InsertRange(0, busNodes);

                                    n = prevs.Get(n.ID);

                                    foundRoute = true;
                                    break;
                                }
                                else if (n.ID == e.End &&
                                         prevs.Get(n.ID).ID == e.Start)
                                {

                                    Node[] busNodes = e.Route.Points;

                                    if (busNodes[0].ID == e.End)
                                        Array.Reverse(busNodes);

                                    busStartStop.Add(busNodes[busNodes.Length - 1].ID);
                                    busStartStop.Add(busNodes[0].ID);
                                    nodes.InsertRange(0, busNodes);

                                    n = prevs.Get(n.ID);

                                    foundRoute = true;
                                    break;
                                }
                            }
                        }
                    }

                    if (!foundRoute)
                    {
                        nodes.Insert(0, n);
                        n = prevs.Get(n.ID);
                    }

                } while (n != null);

                result = new Route(nodes.ToArray(), vehicles[0]);
                result.Time = times.Get(destination.ID);
                result.Length = distances.Get(destination.ID);

                // Set bus as vehicle
                if (busStartStop.Count > 0)
                {
                    int i = busStartStop.Count - 1;
                    Node[] routePoints = result.Points;

                    for (int j = 0; j < routePoints.Length; j++)
                    {
                        if (routePoints[j].ID == busStartStop[i])
                        {
                            if (i % 2 == 1)
                            {
                                result.SetVehicle(Vehicle.Bus, j);
                                i--;
                            }
                            else
                            {
                                result.SetVehicle(Vehicle.Foot, j);
                                i--;
                            }
                        }

                        if (i < 0)
                            break;
                    }
                }

                Vehicle cur = result.GetVehicle(0), prev;
                for (int i = 2; i < result.NumOfNodes; i++)
                {
                    if (result.GetVehicle(i) != Vehicle.Bus)
                    {
                        prev = vehicleUse.Get(result[i].ID);

                        if (prev != cur && i > 1)
                            result.SetVehicle(prev, i - 1);

                        cur = prev;
                    }
                }

            }
            else
            {
                result = new Route(new Node[] { source }, vehicles[0]);
                result.Time = double.PositiveInfinity;
                result.Length = double.PositiveInfinity;
            }

            return result;
        }