// Times inserting given number of objects into each tree, performs given number of trial and outputs average runtimes in MS
public static void TimingTest(int numElements, int numTrials)
{
MobileObject[] mObjects = GenerateMobileObjects(numElements);
MobileObject[] sortedObjects = new MobileObject[mObjects.Length];
mObjects.CopyTo(sortedObjects, 0);
Array.Sort(sortedObjects);
long elapsedTicBST = 0;
long elapsedTicBSTSorted = 0;
long elapsedTicAVL = 0;
long elapsedTicAVLSorted = 0;
long elapsedTicRedBlack = 0;
long elapsedTicRedBlackSorted = 0;
long elapsedTicSplay = 0;
long elapsedTicSplaySorted = 0;
long elapsedTic234 = 0;
long elapsedTic234Sorted = 0;
Console.WriteLine("-----------------------------------------------------------------------------------------------------------------");
Console.Write("Timing insertion of " + numElements + " elements(sorted and unsorted)");
for (int i = 1; i <= numTrials; i++)
{
BinarySearchTree <MobileObject> binarySearchTree = new BinarySearchTree <MobileObject>();
BinarySearchTree <MobileObject> binarySearchTree2 = new BinarySearchTree <MobileObject>();
AVLTree <MobileObject> avlTree = new AVLTree <MobileObject>();
AVLTree <MobileObject> avlTree2 = new AVLTree <MobileObject>();
RedBlackTree <MobileObject> redBlackTree = new RedBlackTree <MobileObject>();
RedBlackTree <MobileObject> redBlackTree2 = new RedBlackTree <MobileObject>();
SplayTree <MobileObject> splayTree = new SplayTree <MobileObject>();
SplayTree <MobileObject> splayTree2 = new SplayTree <MobileObject>();
BTree234 <MobileObject> _234Tree = new BTree234 <MobileObject>();
BTree234 <MobileObject> _234Tree2 = new BTree234 <MobileObject>();
Console.Write("\nTrial " + i + ":");
var watch = System.Diagnostics.Stopwatch.StartNew();
foreach (MobileObject obj in mObjects)
{
binarySearchTree.Insert(obj);
}
watch.Stop();
elapsedTicBST += watch.ElapsedTicks;
Console.Write(" .");
watch = System.Diagnostics.Stopwatch.StartNew();
foreach (MobileObject obj in sortedObjects)
{
binarySearchTree2.Insert(obj);
}
watch.Stop();
elapsedTicBSTSorted += watch.ElapsedTicks;
Console.Write(" .");
watch = System.Diagnostics.Stopwatch.StartNew();
foreach (MobileObject obj in mObjects)
{
avlTree.Insert(obj);
}
watch.Stop();
elapsedTicAVL += watch.ElapsedTicks;
Console.Write(" .");
watch = System.Diagnostics.Stopwatch.StartNew();
foreach (MobileObject obj in sortedObjects)
{
avlTree2.Insert(obj);
}
watch.Stop();
elapsedTicAVLSorted += watch.ElapsedTicks;
Console.Write(" .");
watch = System.Diagnostics.Stopwatch.StartNew();
foreach (MobileObject obj in mObjects)
{
redBlackTree.Insert(obj);
}
watch.Stop();
elapsedTicRedBlack += watch.ElapsedTicks;
Console.Write(" .");
watch = System.Diagnostics.Stopwatch.StartNew();
foreach (MobileObject obj in sortedObjects)
{
redBlackTree2.Insert(obj);
}
watch.Stop();
elapsedTicRedBlackSorted += watch.ElapsedTicks;
Console.Write(" .");
watch = System.Diagnostics.Stopwatch.StartNew();
foreach (MobileObject obj in mObjects)
{
splayTree.Insert(obj);
}
watch.Stop();
elapsedTicSplay += watch.ElapsedTicks;
Console.Write(" .");
watch = System.Diagnostics.Stopwatch.StartNew();
foreach (MobileObject obj in sortedObjects)
{
splayTree2.Insert(obj);
}
watch.Stop();
elapsedTicSplaySorted += watch.ElapsedTicks;
Console.Write(" .");
watch = System.Diagnostics.Stopwatch.StartNew();
foreach (MobileObject obj in mObjects)
{
_234Tree.Insert(obj);
}
watch.Stop();
elapsedTic234 += watch.ElapsedTicks;
Console.Write(" .");
watch = System.Diagnostics.Stopwatch.StartNew();
foreach (MobileObject obj in sortedObjects)
{
_234Tree2.Insert(obj);
}
watch.Stop();
elapsedTic234Sorted += watch.ElapsedTicks;
Console.Write(" .");
}
elapsedTicBST /= numTrials;
elapsedTicBSTSorted /= numTrials;
elapsedTicAVL /= numTrials;
elapsedTicAVLSorted /= numTrials;
elapsedTicRedBlack /= numTrials;
elapsedTicRedBlackSorted /= numTrials;
elapsedTicSplay /= numTrials;
elapsedTicSplaySorted /= numTrials;
elapsedTic234 /= numTrials;
elapsedTic234Sorted /= numTrials;
Console.WriteLine("\n{0, -55}" + elapsedTicBST + " MS"
+ "\n{1, -55}" + elapsedTicBSTSorted + " MS"
+ "\n{2, -55}" + elapsedTicAVL + " MS"
+ "\n{3, -55}" + elapsedTicAVLSorted + " MS"
+ "\n{4, -55}" + elapsedTicRedBlack + " MS"
+ "\n{5, -55}" + elapsedTicRedBlackSorted + " MS"
+ "\n{6, -55}" + elapsedTicSplay + " MS"
+ "\n{7, -55}" + elapsedTicSplaySorted + " MS"
+ "\n{8, -55}" + elapsedTic234 + " MS"
+ "\n{9, -55}" + elapsedTic234Sorted + " MS"
, "BinarySearchTree Insert " + numElements + " MobileObjects:"
, "BinarySearchTree Insert " + numElements + " MobileObjects(sorted):"
, "AVLTree Insert " + numElements + " MobileObjects:"
, "AVLTree Insert " + numElements + " MobileObjects (sorted):"
, "RedBlackTree Insert " + numElements + " MobileObjects:"
, "RedBlackTree Insert " + numElements + " MobileObjects (sorted):"
, "SplayTree Insert " + numElements + " MobileObjects:"
, "SplayTree Insert " + numElements + " MobileObjects (sorted):"
, "234Tree Insert " + numElements + " MobileObjects:"
, "234LTree Insert " + numElements + " MobileObjects (sorted):");
}
// Tests red black tree insert/delete/traverse/find
public static void RedBlackTest()
{
RedBlackTree <int> redBlack = new RedBlackTree <int>();
Console.WriteLine("-----------------------------------------------------------------------------------------------------------------");
Console.WriteLine("Testing RedBlack Functions");
Console.WriteLine("----------------");
Console.WriteLine("Testing RedBlack Insertion(root)" +
"\nItem to be inserted: 50");
redBlack.Insert(50);
Console.WriteLine("\nTree after insertion:");
Console.WriteLine(redBlack.DisplayTree());
Console.WriteLine("\nTree colours after insertion:");
Console.WriteLine(redBlack.DisplayTreeRB());
Console.WriteLine("\nTesting RedBlack Insertion(black parent)" +
"\nItems to be inserted: 25, 70");
redBlack.Insert(25);
redBlack.Insert(70);
Console.WriteLine("\nTree after insertion:");
Console.WriteLine(redBlack.DisplayTree());
Console.WriteLine("\nTree colours after insertion:");
Console.WriteLine(redBlack.DisplayTreeRB());
Console.WriteLine("\nTesting RedBlack Insertion(red uncle)" +
"\nItem to be inserted: 80");
redBlack.Insert(80);
Console.WriteLine("\nTree after insertion:");
Console.WriteLine(redBlack.DisplayTree());
Console.WriteLine("\nTree colours after insertion:");
Console.WriteLine(redBlack.DisplayTreeRB());
Console.WriteLine("\nTesting RedBlack Insertion(black uncle)" +
"\nItems to be inserted: 75");
redBlack.Insert(75);
Console.WriteLine("\nTree after insertion:");
Console.WriteLine(redBlack.DisplayTree());
Console.WriteLine("\nTree colours after insertion:");
Console.WriteLine(redBlack.DisplayTreeRB());
Console.WriteLine("----------------");
Console.WriteLine("Testing RedBlack Traversal:");
Console.WriteLine("In order traversal: " + redBlack.InOrder());
Console.WriteLine("----------------");
redBlack.Insert(30);
redBlack.Insert(20);
Console.WriteLine("Testing RedBlack Deletion (2 children)" +
"\nItem to be deleted: 50");
Console.WriteLine("Tree before deletion:");
Console.WriteLine(redBlack.DisplayTree());
Console.WriteLine("\nTree colours before deletion:");
Console.WriteLine(redBlack.DisplayTreeRB());
redBlack.Delete(50);
Console.WriteLine("Tree after deletion:");
Console.WriteLine(redBlack.DisplayTree());
Console.WriteLine("\nTree colours after deletion:");
Console.WriteLine(redBlack.DisplayTreeRB());
Console.WriteLine("\nTesting RedBlack Deletion (red no children)" +
"\nItem to be deleted: 70");
redBlack.Delete(70);
Console.WriteLine("Tree after deletion:");
Console.WriteLine(redBlack.DisplayTree());
Console.WriteLine("\nTree colours after deletion:");
Console.WriteLine(redBlack.DisplayTreeRB());
Console.WriteLine("\nTesting RedBlack Deletion (left child)" +
"\nItem to be deleted: 20");
redBlack.Delete(20);
Console.WriteLine("Tree after deletion:");
Console.WriteLine(redBlack.DisplayTree());
Console.WriteLine("\nTree colours after deletion:");
Console.WriteLine(redBlack.DisplayTreeRB());
Console.WriteLine("\nTesting RedBlack Deletion (right child)" +
"\nItem to be deleted: 80");
redBlack.Delete(80);
Console.WriteLine("Tree after deletion:");
Console.WriteLine(redBlack.DisplayTree());
Console.WriteLine("\nTree colours after deletion:");
Console.WriteLine(redBlack.DisplayTreeRB());
Console.WriteLine("\nTesting RedBlack Deletion (black no children)" +
"\nItem to be deleted: 75");
redBlack.Delete(75);
Console.WriteLine("Tree after deletion:");
Console.WriteLine(redBlack.DisplayTree());
Console.WriteLine("\nTree colours after deletion:");
Console.WriteLine(redBlack.DisplayTreeRB());
Console.WriteLine("\nTesting RedBlack Deletion (not in tree)" +
"\nItem to be deleted: 500");
redBlack.Delete(500);
Console.WriteLine("Tree after deletion:");
Console.WriteLine(redBlack.DisplayTree());
Console.WriteLine("\nTree colours after deletion:");
Console.WriteLine(redBlack.DisplayTreeRB());
Console.WriteLine("----------------");
Console.WriteLine("Testing RedBlack Find:");
Console.WriteLine("Attempting to find 25: " + (redBlack.Find(25) ? "Found" : "Not Found"));
Console.WriteLine("Attempting to find 50: " + (redBlack.Find(50) ? "Found" : "Not Found"));
Console.WriteLine("-----------------------------------------------------------------------------------------------------------------");
}