public void delete_leaf_node_on_first_level()
{
Tree tree = new Tree(10);
tree.Insert(5);
tree.Insert(15);
tree.Delete(5);
Assert.Null(tree.Root.Left);
Assert.NotNull(tree.Root.Right);
}
public void create_two_right_nodes_from_root()
{
Tree tree = new Tree(10);
tree.Insert(15);
tree.Insert(33);
Assert.NotNull(tree.Root.Right);
Assert.Null(tree.Root.Left);
Assert.Equal(33, tree.Root.Right.Right.Data);
Assert.Null(tree.Root.Right.Left);
}
public void delete_root_with_two_children()
{
Tree tree = new Tree(10);
tree.Insert(5);
tree.Insert(15);
tree.Delete(10);
Assert.Equal(15, tree.Root.Data);
Assert.Null(tree.Root.Right);
Assert.NotNull(tree.Root.Left);
}
public void delete_node_with_one_child()
{
Tree tree = new Tree(10);
tree.Insert(5);
tree.Insert(15);
tree.Insert(1);
tree.Delete(5);
Assert.NotNull(tree.Root.Left);
Assert.NotNull(tree.Root.Right);
Assert.Equal(1, tree.Root.Left.Data);
}
// вставка
public void Insert(T value)
{
if (this.value.Equals(default(T)))
{
this.value = value;
}
else
{
if (this.value.CompareTo(value) == 1)
{
if (left == null)
{
this.left = new Tree <T>();
}
left.Insert(value);
}
else
{
if (right == null)
{
this.right = new Tree <T>();
}
right.Insert(value);
}
}
}
static void Main(string[] args)
{
for (int j = 0; j < 15; j++)
{
Tree <int> tree = new Tree <int>();
// var j = 15;
int lastInsertElement = new int();
using (StreamReader sr = new StreamReader((j + 1) + ".txt"))
{
while (!sr.EndOfStream)
{
string[] line = sr.ReadLine().Split(new char[] { ' ' });
for (int i = 0; i < line.Length; i++)
{
if (line[i] == "")
{
break;
}
int element = Convert.ToInt32(line[i]);
tree.Insert(element);
lastInsertElement = element;
}
}
}
Stopwatch sw = new Stopwatch();
sw.Start();
lastInsertElement = 7;
bool isFind = tree.Search(lastInsertElement);
sw.Stop();
Console.WriteLine(sw.ElapsedTicks);
}
Console.ReadKey();
}
public void create_left_node_from_root()
{
Tree tree = new Tree(10);
tree.Insert(5);
Assert.NotNull(tree.Root.Left);
Assert.Null(tree.Root.Right);
Assert.Equal(5, tree.Root.Left.Data);
}
public void traverse_tree_in_postorder_manner()
{
List <int> result = new List <int>();
Tree tree = new Tree(10);
tree.Insert(5);
tree.Insert(15);
tree.Insert(1);
tree.Insert(6);
tree.Postorder(x =>
{
result.Add(x);
});
Assert.Equal(5, result.Count);
Assert.Equal(1, result[0]);
Assert.Equal(6, result[1]);
Assert.Equal(5, result[2]);
Assert.Equal(15, result[3]);
Assert.Equal(10, result[4]);
}
private static void AddData(Tree tree, int numberOfTestNodes, TestData.TestDataOrder testDataOrder)
{
TestData testData = new TestData(numberOfTestNodes, testDataOrder);
Console.WriteLine("Order of test data is : {0}", testDataOrder.ToString());
Console.Write(" Adding {0} nodes with values from 0 to {1}. ", testData.Keys.Length, testData.Keys.Length - 1);
Stopwatch stopwatch = Stopwatch.StartNew();
foreach (int key in testData.Keys)
{
tree.Insert(key);
}
stopwatch.Stop();
Console.WriteLine("Time elapsed (ms) : {0}", stopwatch.ElapsedMilliseconds);
}
public void delete_nodes_which_have_two_children_nodes()
{
Tree tree = new Tree(100);
tree.Insert(50);
tree.Insert(150);
tree.Insert(25);
tree.Insert(75);
tree.Insert(125);
tree.Insert(60);
tree.Insert(80);
tree.Insert(200);
tree.Delete(50);
tree.Delete(150);
Assert.Equal(200, tree.Root.Right.Data);
Assert.Equal(60, tree.Root.Left.Data);
}
public void check_if_all_nodes_are_properly_distributed()
{
Tree tree = new Tree(100);
tree.Insert(50);
tree.Insert(150);
tree.Insert(25);
tree.Insert(75);
tree.Insert(125);
tree.Insert(175);
Assert.Equal(100, tree.Root.Data);
Assert.Equal(50, tree.Root.Left.Data);
Assert.Equal(25, tree.Root.Left.Left.Data);
Assert.Equal(75, tree.Root.Left.Right.Data);
Assert.Equal(150, tree.Root.Right.Data);
Assert.Equal(125, tree.Root.Right.Left.Data);
Assert.Equal(175, tree.Root.Right.Right.Data);
}
static void Main(string[] args)
{
Tree theTree = new Tree();
theTree.Insert(20);
theTree.Insert(25);
theTree.Insert(45);
theTree.Insert(15);
theTree.Insert(67);
theTree.Insert(43);
theTree.Insert(80);
theTree.Insert(33);
theTree.Insert(67);
theTree.Insert(99);
theTree.Insert(91);
Console.WriteLine("Inorder Traversal : ");
theTree.Inorder(theTree.ReturnRoot());
Console.WriteLine(" ");
Console.WriteLine();
Console.WriteLine("Preorder Traversal : ");
theTree.Preorder(theTree.ReturnRoot());
Console.WriteLine(" ");
Console.WriteLine();
Console.WriteLine("Postorder Traversal : ");
theTree.Postorder(theTree.ReturnRoot());
Console.WriteLine(" ");
Console.ReadLine();
}
static void Main(string[] args)
{
Tree tree = new Tree();
tree.AddNode(3);
tree.Insert(tree.root, tree.AddNode(2));
tree.Insert(tree.root, tree.AddNode(1));
tree.Insert(tree.root, tree.AddNode(4));
tree.Insert(tree.root, tree.AddNode(10));
tree.Insert(tree.root, tree.AddNode(6));
tree.Print(tree.root);
}