// 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 avl tree insert/delete/traverse/find
public static void AVLTest()
{
AVLTree <int> avl = new AVLTree <int>();
Console.WriteLine("-----------------------------------------------------------------------------------------------------------------");
Console.WriteLine("Testing AVL Functions");
Console.WriteLine("----------------");
Console.WriteLine("Testing AVL Insertion(no rotation)" +
"\nItems to be inserted: 50, 25, 75");
avl.Insert(50);
avl.Insert(25);
avl.Insert(75);
Console.WriteLine("Tree after insertion:");
Console.WriteLine(avl.DisplayTree());
Console.WriteLine("\nTesting AVL Insertion(left-left)" +
"\nItems to be inserted: 20, 10");
avl.Insert(20);
avl.Insert(10);
Console.WriteLine("Tree after insertion:");
Console.WriteLine(avl.DisplayTree());
Console.WriteLine("\nTesting AVL Insertion(left-right)" +
"\nItem to be inserted: 30");
avl.Insert(30);
Console.WriteLine("Tree after insertion:");
Console.WriteLine(avl.DisplayTree());
Console.WriteLine("\nTesting AVL Insertion(right-right)" +
"\nItems to be inserted: 80, 90");
avl.Insert(80);
avl.Insert(90);
Console.WriteLine("Tree after insertion:");
Console.WriteLine(avl.DisplayTree());
Console.WriteLine("\nTesting AVL Insertion(right-left)" +
"\nItem to be inserted: 60");
avl.Insert(60);
Console.WriteLine("Tree after insertion:");
Console.WriteLine(avl.DisplayTree());
Console.WriteLine("----------------");
Console.WriteLine("Testing AVL Traversal:");
Console.WriteLine("In order traversal: " + avl.InOrder());
Console.WriteLine("----------------");
Console.WriteLine("Testing AVL Deletion (no children)" +
"\nItem to be deleted: 60");
avl.Delete(60);
Console.WriteLine("Tree after deletion:");
Console.WriteLine(avl.DisplayTree());
Console.WriteLine("\nTesting AVL Deletion (2 children)" +
"\nItem to be deleted: 75");
avl.Delete(75);
Console.WriteLine("Tree after deletion:");
Console.WriteLine(avl.DisplayTree());
Console.WriteLine("\nTesting AVL Deletion (left child)" +
"\nItem to be deleted: 20");
avl.Delete(20);
Console.WriteLine("Tree after deletion:");
Console.WriteLine(avl.DisplayTree());
Console.WriteLine("\nTesting AVL Deletion (right child)" +
"\nItem to be deleted: 80");
avl.Delete(80);
Console.WriteLine("Tree after deletion:");
Console.WriteLine(avl.DisplayTree());
Console.WriteLine("\nTesting AVL Deletion (not in tree)" +
"\nItem to be deleted: 500");
avl.Delete(500);
Console.WriteLine("Tree after deletion:");
Console.WriteLine(avl.DisplayTree());
Console.WriteLine("----------------");
Console.WriteLine("Testing AVL Find:");
Console.WriteLine("Attempting to find 40: " + (avl.Find(40) ? "Found" : "Not Found"));
Console.WriteLine("Attempting to find 50: " + (avl.Find(50) ? "Found" : "Not Found"));
Console.WriteLine("-----------------------------------------------------------------------------------------------------------------");
}