public void MergeSortTest()
{
List <int> unsorted = new List <int>();
List <int> sorted;
Random random = new Random();
for (int i = 0; i < 2000000; i++)
{
unsorted.Add(random.Next(1, 2000000));
}
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
sorted = _object.MergeSort(unsorted);
stopwatch.Stop();
string totaltime = stopwatch.Elapsed.ToString();
Assert.AreEqual(totaltime, 10);
/*
* 20,000 -00:00:00.1306896
* 2,00,000-00:00:02.6504209
* 20,00,000-
*/
}
/*public static long multiply(long x, long y)
* {
* long result = 0;
*
* int size1 = GetSize(x);
* int size2 = GetSize(y);
*
* //find the max size of two integers
* int N = Math.Max(size1, size2);
*
* if (N < 2)
* return x * y;
*
* //Max length divided by two and rounded up
* N = (N / 2) + (N % 2);
*
* //The mulitplying factor for calculating a,b,c,d
* long m = (long)Math.Pow(10, N);
*
* long b = x % m;
* long a = x / m;
* long c = y / m;
* long d = y % m;
*
* long z0 = multiply(a, c);
* long z1 = multiply(b, d);
* long z2 = multiply(a + b, c + d);
*
* result = ((long)Math.Pow(10, N * 2) * z0) + z1 + ((z2 - z1 - z0) * m);
* return result;
* }*/
static void Main(string[] args)
{
Console.WriteLine("G = {0},\nK = {1},\nP = {2},\nX = ",
MathAlgorithms.GradeSchoolMultiplication(999999999, 999999999),
MathAlgorithms.KaratsubaMultiplication(999999999, 999999999),
999999999L * 999999999L);
int[] arr = { 2, 1, 6, 3, 5, 8, 11, 20, 4, 465, 4645, 645, 675, 765, 7, 567, 65 };
Console.WriteLine(SearchingAlgorithms.BinarySearch <int>(arr, 20));
List <string> list = new List <string>()
{
"Ahmed", "ahmed", "sara", "amgad"
};
Console.WriteLine(SearchingAlgorithms.BinarySearch <string>(list, "ahmed"));
SortingAlgorithms.SelectionSort <int>(arr);
foreach (var item in arr)
{
Console.Write(item + " ");
}
Console.WriteLine();
SortingAlgorithms.SelectionSort <string>(list);
foreach (var item in list)
{
Console.Write(item + " ");
}
arr = new int[] { 2, 1, 6, 3, 5, 8, 11, 20, 4, 465, 4645, 645, 675, 765, 7, 567, 65 };
SortingAlgorithms.MergeSort <int>(arr, 0, arr.Length - 1);
}
public void MergeSortTest()
{
SortingAlgorithms <int> .MergeSort(_Items);
string tmp = string.Join(",", _Items);
Assert.AreEqual(tmp, _ExpectedResult);
}
public void Can_MergeSort()
{
int[] expect = { 4, 5, 2, 3, 3, 6, 7, -1, 0, -1 };
int[] sorted = { -1, -1, 0, 2, 3, 3, 4, 5, 6, 7 };
SortingAlgorithms <int> .MergeSort(expect, Comparer <int> .Default, 0, expect.Length);
CollectionAssert.AreEqual(sorted, expect);
}
public void MergeSortTest()
{
int[] newArr = sorter.MergeSort(arr);
for (int i = 0; i < newArr.Length - 1; i++)
{
Assert.True(newArr[i] <= newArr[i + 1]);
}
}
public void Can_MergeSort_Work_On_Big_Arrays()
{
byte[] array = new byte[10000];
new Random().NextBytes(array);
SortingAlgorithms <byte> .MergeSort(array);
for (int i = 1; i < array.Length; i++)
{
Assert.IsTrue(array[i - 1] <= array[i]);
}
}
public void TestMergeSort()
{
// Arrange
int[] arr = new int[] { 4, 10, 2, 1, 8, 9, 5, 7, 6, 3 };
int[] expected = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
// Act
SortingAlgorithms.MergeSort(arr);
// Assert
CollectionAssert.AreEqual(expected, arr);
}
public void MergeSortTest()
{
//Arrange
//int[] unsorted = new int[] { 2, 5, 4, 0, 9, 1 };
int[] unsorted = new int[] { 9, 1, 5, 2, 4, 0 };
int[] expected = new int[] { 0, 1, 2, 4, 5, 9 };
//Act
SortingAlgorithms.MergeSort(unsorted);
//Assert
CollectionAssert.AreEqual(expected, unsorted);
}
//Chooses the proper algorithm based on the AlgorithmsComboBox.SelectedItem
private void Sort(ref List <int> n)
{
ComboBoxItem item = AlgorithmsComboBox.SelectedItem as ComboBoxItem;
switch (item.Content.ToString())
{
case "Bubble Sort":
SortingAlgorithms.BubbleSort(ref n);
break;
case "Insertion Sort":
SortingAlgorithms.InsertionSort(ref n);
break;
case "Selection Sort":
SortingAlgorithms.SelectionSort(ref n);
break;
case "Merge Sort":
n = SortingAlgorithms.MergeSort(n);
break;
}
}
static void Main(string[] args)
{
#region Design Patterns
#region Decorator Pattern Example
Espresso beverage1 = new Espresso();
Console.WriteLine("Double Mocha Esspresso");
Mocha d1 = new Mocha(beverage1);
Mocha d2 = new Mocha(d1);
Console.WriteLine(d2.Cost() + " " + d2.Description);
Console.WriteLine("\n House Blend, Moch, Whip");
HouseBlend beverage2 = new HouseBlend();
Mocha d3 = new Mocha(beverage2);
Whip d4 = new Whip(d3);
Console.WriteLine(d4.Cost() + " " + d4.Description);
#endregion
#region Factory Pattern
// Note: constructors call Factory Method
Document[] documents = new Document[2];
documents[0] = new Resume();
documents[1] = new Report();
// Display document pages
foreach (Document document in documents)
{
Console.WriteLine("\n" + document.GetType().Name + "--");
foreach (Page page in document.Pages)
{
Console.WriteLine(" " + page.GetType().Name);
}
}
#endregion
#region Abstract Factory Pattern
ContinentFactory africa = new AfricaFactory();
AnimalWorld world = new AnimalWorld(africa);
world.RunFoodChain();
ContinentFactory america = new AmericaFactory();
world = new AnimalWorld(america);
world.RunFoodChain();
#endregion
#region Singleton
Console.WriteLine(Singleton.Math.Instance.add(34, 3));
#endregion
#region Obsever Pattern
BaggageHandler provider = new BaggageHandler();
ArrivalsMonitor observer1 = new ArrivalsMonitor("BaggageClaimMonitor1");
ArrivalsMonitor observer2 = new ArrivalsMonitor("SecurityExit");
provider.BaggageStatus(712, "Detroit", 3);
observer1.Subscribe(provider);
provider.BaggageStatus(712, "Kalamazoo", 3);
provider.BaggageStatus(400, "New York-Kennedy", 1);
provider.BaggageStatus(712, "Detroit", 3);
observer2.Subscribe(provider);
provider.BaggageStatus(511, "San Francisco", 2);
provider.BaggageStatus(712);
observer2.Unsubscribe();
provider.BaggageStatus(400);
provider.LastBaggageClaimed();
#endregion
#region Strategy Pattern
SortedList studentRecords = new SortedList();
studentRecords.Add("samual");
studentRecords.Add("Jimmy");
studentRecords.Add("Sandra");
studentRecords.Add("Vivek");
studentRecords.Add("Anna");
studentRecords.SetSortStrategy(new QuickSort());
studentRecords.Sort();
studentRecords.SetSortStrategy(new ShellSort());
studentRecords.Sort();
studentRecords.SetSortStrategy(new MergeSort());
studentRecords.Sort();
#endregion
#region Composite Pattern
CompositeElement root = new CompositeElement("Picture");
root.Add(new PrimitiveElement("Red Line"));
root.Add(new PrimitiveElement("Blue Circle"));
root.Add(new PrimitiveElement("Green Box"));
CompositeElement comp = new CompositeElement("Two Circles");
comp.Add(new PrimitiveElement("Black Circle"));
comp.Add(new PrimitiveElement("White Circle"));
root.Add(comp);
PrimitiveElement pe = new PrimitiveElement("Yellow Line");
root.Add(pe);
root.Remove(pe);
root.Display(1);
#endregion
#region Command Pattern
User user = new User();
user.Compute('+', 100);
user.Compute('-', 50);
user.Compute('*', 10);
user.Compute('/', 2);
user.Undo(4);
user.Redo(3);
#endregion
#region COR (Chain of Responsibility)
// Setup Chain of Responsibility
Handler h1 = new ConcreteHandlerA();
Handler h2 = new ConcreteHandlerB();
Handler h3 = new ConcreteHandlerC();
h2.SetSuccessor(h3);
h1.SetSuccessor(h2);
// Generate and process request
int[] requests = { 2, 5, 14, 22, 18, 3, 27, 20 };
foreach (int request in requests)
{
h1.HandleRequest(request);
}
#endregion
#endregion
#region AD
#region List
MyArrayList list = new MyArrayList(5);
//setting values
list.add(1);
list.add(2);
list.add(3);
list.add(4);
list.add(5);
Console.WriteLine(list.get(2) + " staat op positie 2");
//testing print function
list.print();
//testing set function
list.set(2, 10); //true
list.print();
list.set(10, 2); //false
//occurences test
list.set(0, 2);
list.set(4, 2);
list.countOccurences(2);
//testing clear
list.clear();
list.print();
MyLinkedList <int> linkedList = new MyLinkedList <int>();
linkedList.addFirst(1);
linkedList.addFirst(12);
linkedList.addFirst(3);
linkedList.addFirst(4);
linkedList.addFirst(5);
linkedList.insert(0, 123);
linkedList.remove(12);
MyLinkedList <int> .printList(linkedList);
Console.ReadLine();
#endregion
#region Graph
Graph g = new Graph();
try
{
StreamReader d = new StreamReader(Console.ReadLine());
string line;
while ((line = d.ReadLine()) != null)
{
Console.WriteLine(line);
string[] words = line.Split(' ');
try
{
if (words.Length > 3)
{
Console.WriteLine("Skipping bad line: " + line);
continue;
}
string source = words[0];
string dest = words[1];
int cost = Int32.Parse(words[2]);
g.addEdge(source, dest, cost);
}
catch (FormatException e)
{
Console.WriteLine("Skipping bad line: " + line);
Console.WriteLine(e);
}
}
}
catch (Exception e) { Console.WriteLine(e); }
//while (processRequest(g));
#endregion
#region Binairy tree
string seperator = "-----------------------------------------------------------------------";
Console.WriteLine(seperator);
Console.WriteLine("Binary Tree Basic: ");
BinaryNode <int> NodeA = new BinaryNode <int>(2);
BinaryNode <int> NodeB = new BinaryNode <int>(5);
BinaryNode <int> NodeC = new BinaryNode <int>(6);
BinaryNode <int> NodeD = new BinaryNode <int>(3);
BinaryNode <int> NodeE = new BinaryNode <int>(7);
BinaryNode <int> NodeF = new BinaryNode <int>(10);
BinaryNode <int> NodeG = new BinaryNode <int>(1);
NodeE.setRight(NodeG);
NodeA.setLeft(NodeC);
NodeA.setRight(NodeD);
NodeB.setLeft(NodeE);
NodeB.setRight(NodeF);
BinaryTree <int> tree = new BinaryTree <int>(12);
tree.Root.setLeft(NodeA);
tree.Root.setRight(NodeB);
tree.printPreOrder();
Console.ReadLine();
Console.WriteLine(seperator);
Console.WriteLine("Binary Search Tree: ");
BinaryTree <int> BST = new BinaryTree <int>();
BST.Insert(5);
BST.Insert(1254);
BST.Insert(252);
BST.Insert(378);
BST.Insert(45);
BST.Insert(668);
BST.Insert(71);
BST.Insert(8);
BST.Insert(942);
//fail test
BST.Insert(1);
Console.WriteLine(seperator);
Console.WriteLine("Printing in order: ");
BST.printInOrder();
Console.ReadLine();
Console.WriteLine(seperator);
Console.WriteLine("Finding Min:");
Console.WriteLine(BST.FindMin());
Console.ReadLine();
Console.WriteLine(seperator);
Console.WriteLine("Finding Max: ");
Console.WriteLine(BST.FindMax());
Console.ReadLine();
Console.WriteLine(seperator);
Console.WriteLine("Finding value 5:");
Console.WriteLine(BST.Find(5));
Console.ReadLine();
Console.WriteLine(seperator);
Console.WriteLine("Removing 5");
BST.Remove(5);
Console.ReadLine();
Console.WriteLine(seperator);
Console.WriteLine("Printing in order: ");
BST.printInOrder();
Console.ReadLine();
Console.WriteLine(seperator);
Console.WriteLine("Removing Min");
BST.RemoveMin();
Console.ReadLine();
Console.WriteLine(seperator);
Console.WriteLine("Printing in order: ");
BST.printInOrder();
Console.ReadLine();
#endregion
#region Max heap
MaxHeap theHeap = new MaxHeap(21);
theHeap.Insert(40);
theHeap.Insert(70);
theHeap.Insert(20);
theHeap.Insert(60);
theHeap.Insert(50);
theHeap.Insert(100);
theHeap.Insert(82);
theHeap.Insert(35);
theHeap.Insert(90);
theHeap.Insert(10);
theHeap.DisplayHeap();
Console.WriteLine("Inserting a new node with value 120");
theHeap.Insert(120);
theHeap.DisplayHeap();
Console.WriteLine("Removing max element");
theHeap.Remove();
theHeap.DisplayHeap();
Console.WriteLine("Changing root to 130");
theHeap.HeapIncreaseDecreaseKey(0, 130);
theHeap.DisplayHeap();
Console.WriteLine("Changing root to 5");
theHeap.HeapIncreaseDecreaseKey(0, 5);
theHeap.DisplayHeap();
Console.ReadLine();
#endregion
#region Min heap
int[] arrA = { 50, 2, 30, 7, 40, 4, 10, 16, 12 };
Console.WriteLine("Original Array : ");
for (int i = 0; i < arrA.Length; i++)
{
Console.Write(" " + arrA[i]);
}
MinHeap m = new MinHeap(arrA.Length);
Console.WriteLine("\nMin-Heap : ");
m.createHeap(arrA);
m.display();
Console.WriteLine("Extract Min :");
for (int i = 0; i < arrA.Length; i++)
{
Console.Write(" " + m.extractMin());
}
#endregion
#region Sorting
Console.WriteLine();
int[] tmpArray = { 0, 15, 48, 60, 88, 123, 1, 5, 4, 12, 99, 11, 200, 41 };
Console.WriteLine(seperator);
Console.WriteLine("Base Array: ");
SortingAlgorithms.Show_array_elements(tmpArray);
Console.WriteLine(seperator);
var watch = System.Diagnostics.Stopwatch.StartNew();
SortingAlgorithms.ShellSort(tmpArray);
watch.Stop();
var elapsedMs = watch.ElapsedMilliseconds;
Console.WriteLine("Shell sorted Array in: " + elapsedMs + "ms");
SortingAlgorithms.Show_array_elements(tmpArray);
Console.WriteLine(seperator);
Console.ReadKey();
tmpArray = new[] { 0, 15, 48, 60, 88, 123, 1, 5, 4, 12, 99, 11, 200, 41 };
Console.WriteLine("Base Array: ");
SortingAlgorithms.Show_array_elements(tmpArray);
Console.WriteLine(seperator);
watch = System.Diagnostics.Stopwatch.StartNew();
SortingAlgorithms.PerformInsertionSort(tmpArray);
watch.Stop();
elapsedMs = watch.ElapsedMilliseconds;
Console.WriteLine("Insertion sorted Array in: " + elapsedMs + "ms");
SortingAlgorithms.Show_array_elements(tmpArray);
Console.WriteLine(seperator);
Console.ReadKey();
tmpArray = new[] { 0, 15, 48, 60, 88, 123, 1, 5, 4, 12, 99, 11, 200, 41 };
Console.WriteLine("Base Array: ");
SortingAlgorithms.Show_array_elements(tmpArray);
Console.WriteLine(seperator);
watch = System.Diagnostics.Stopwatch.StartNew();
SortingAlgorithms.MergeSort(tmpArray);
watch.Stop();
elapsedMs = watch.ElapsedMilliseconds;
Console.WriteLine("Merge sorted Array in: " + elapsedMs + "ms");
SortingAlgorithms.Show_array_elements(tmpArray);
Console.WriteLine(seperator);
Console.ReadKey();
tmpArray = new[] { 0, 15, 48, 60, 88, 123, 1, 5, 4, 12, 99, 11, 200, 41, 46 };
Console.WriteLine("Base Array: ");
SortingAlgorithms.Show_array_elements(tmpArray);
Console.WriteLine(seperator);
watch = System.Diagnostics.Stopwatch.StartNew();
SortingAlgorithms.QuickSort(tmpArray, 0, tmpArray.Length - 1);
watch.Stop();
elapsedMs = watch.ElapsedMilliseconds;
Console.WriteLine("Quick sorted Array in: " + elapsedMs + "ms");
SortingAlgorithms.Show_array_elements(tmpArray);
Console.WriteLine(seperator);
Console.ReadKey();
#endregion
#endregion
Console.ReadKey();
}
public void MergeSort_Throws_ArgumentNullException()
{
SortingAlgorithms <int> .MergeSort(null, null, 0, 10);
}
public static void Main(string[] args)
{
sa = new SortingAlgorithms();
n_5 = new int[1000000];
n_6 = new int[10000000];
rnd = new Random(8); //Seed carefully chosen by the team
for (int i = 0; i < n_6.Length; i++)
{
int nextRand = rnd.Next();
n_6[i] = nextRand;
if (i < n_5.Length)
{
n_5[i] = nextRand;
}
}
Console.WriteLine("Merge sort 10^5: ");
for (int i = 0; i < 100; i++)
{
DateTime start = DateTime.Now;
sa.MergeSort(n_5);
DateTime end = DateTime.Now;
Console.WriteLine(i + ") " + (end - start));
}
Console.WriteLine("Merge sort 10^6: ");
for (int i = 0; i < 100; i++)
{
DateTime start = DateTime.Now;
sa.MergeSort(n_6);
DateTime end = DateTime.Now;
Console.WriteLine(i + ") " + (end - start));
}
Console.WriteLine("Quick sort 10^5: ");
for (int i = 0; i < 100; i++)
{
int[] copy = new int[n_5.Length];
for (int j = 0; j < copy.Length; j++)
{
copy[j] = n_5[j];
}
DateTime start = DateTime.Now;
sa.QuickSort(copy);
DateTime end = DateTime.Now;
Console.WriteLine(i + ") " + (end - start));
}
Console.WriteLine("Quick sort 10^6: ");
for (int i = 0; i < 100; i++)
{
int[] copy = new int[n_6.Length];
for (int j = 0; j < copy.Length; j++)
{
copy[j] = n_6[j];
}
DateTime start = DateTime.Now;
sa.QuickSort(copy);
DateTime end = DateTime.Now;
Console.WriteLine(i + ") " + (end - start));
}
}