public void add(int data)
{
BinaryNode toAdd = new BinaryNode(data);
if (root == null)
{
root = toAdd;
}else{
addRec(root, toAdd);
}
}
public BinarySearchTree()
{
root = null;
}
public void setRight(BinaryNode newRight)
{
right = newRight;
}
public void setLeft(BinaryNode newLeft)
{
left = newLeft;
}
private void preOrderTraversalRec(BinaryNode subTree)
{
if (subTree != null)
{
Console.Out.Write(subTree.getData());
Console.Out.Write(" ");
preOrderTraversalRec(subTree.getLeft());
preOrderTraversalRec(subTree.getRight());
}
}
public BinaryTree(T rootValue)
{
Root = new BinaryNode <T>(rootValue);
}
public void SetUp()
{
_bst = CreateBst();
_notBst = CreateNotBst();
_comparer = Comparer<int>.Default;
}
public void Add(T item)
{
root = new BinaryNode <T>(null, item);
_count += 1;
}
//======Private Methods======
private void deleteValueRec(BinaryNode prevNode, BinaryNode subTree, int value)
{
BinaryNode nextNode = null;
if (subTree != null)
{
if (subTree.getData() == value)
{
deleteNode(prevNode, subTree, value);
}
else if (subTree.getData() > value)
{
nextNode = subTree.getLeft();
deleteValueRec(subTree, nextNode, value);
}
else
{
nextNode = subTree.getRight();
deleteValueRec(subTree, nextNode, value);
}
}
}
private void deleteNode(BinaryNode prev, BinaryNode curr, int value)
{
BinaryNode temp = null;
if (prev == null)
{
if (root.getLeft() == null && curr.getRight() == null)
{
root = null;
}
else if (root.getLeft() != null && curr.getRight() == null)
{
root = root.getLeft();
}
else if (root.getLeft() == null && curr.getRight() != null)
{
root = root.getRight();
}
else
{
temp = root;
root = getNDelNextInOrderNode(null, root);
root.setLeft(temp.getLeft());
root.setRight(temp.getRight());
}
}
else
{
if (curr.getLeft() != null && curr.getRight() == null)
{
if (prev.getData() > value)
{
prev.setLeft(curr.getLeft());
}
else
{
prev.setRight(curr.getRight());
}
}
else if (curr.getLeft() == null && curr.getRight() != null)
{
if (prev.getData() > value)
{
prev.setLeft(curr.getRight());
}
else
{
prev.setRight(curr.getRight());
}
}
else
{
if (prev.getData() > value)
{
temp = curr;
prev.setLeft(getNDelNextInOrderNode(prev, curr));
prev.getLeft().setLeft(curr.getLeft());
prev.getLeft().setRight(curr.getRight());
}
else
{
temp = curr;
prev.setRight(getNDelNextInOrderNode(prev, curr));
prev.getRight().setLeft(curr.getLeft());
prev.getRight().setRight(curr.getRight());
}
}
}
}
public BinaryNode(int data)
{
this.data = data;
left = null;
right = null;
}
private void addRec(BinaryNode subTree, BinaryNode toAdd)
{
if (subTree.getData() > toAdd.getData())
{
if(subTree.getLeft() == null){
subTree.setLeft(toAdd);
}else{
addRec(subTree.getLeft(), toAdd);
}
}else{
if(subTree.getRight() == null){
subTree.setRight(toAdd);
}else{
addRec(subTree.getRight(), toAdd);
}
}
}
public BinaryNode(M value, BinaryNode <M> parent = null)
{
Value = value;
Parent = parent;
}
private void ProcessNode(BinaryNode <T> node, Action <BinaryNode <T> > action, RoutingMode routing, DirectionMode direction)
{
if (node == null)
{
return;
}
switch (routing)
{
case RoutingMode.Direct:
{
action?.Invoke(node);
if (direction == DirectionMode.Left)
{
ProcessNode(node.LeftSon, action, routing, direction);
ProcessNode(node.RightSon, action, routing, direction);
}
else if (direction == DirectionMode.Right)
{
ProcessNode(node.RightSon, action, routing, direction);
ProcessNode(node.LeftSon, action, routing, direction);
}
break;
}
case RoutingMode.Internal:
{
if (direction == DirectionMode.Left)
{
ProcessNode(node.LeftSon, action, routing, direction);
action?.Invoke(node);
ProcessNode(node.RightSon, action, routing, direction);
}
else if (direction == DirectionMode.Right)
{
ProcessNode(node.RightSon, action, routing, direction);
action?.Invoke(node);
ProcessNode(node.LeftSon, action, routing, direction);
}
break;
}
case RoutingMode.Inverted:
{
if (direction == DirectionMode.Left)
{
ProcessNode(node.LeftSon, action, routing, direction);
ProcessNode(node.RightSon, action, routing, direction);
}
else if (direction == DirectionMode.Right)
{
ProcessNode(node.RightSon, action, routing, direction);
ProcessNode(node.LeftSon, action, routing, direction);
}
action?.Invoke(node);
break;
}
}
}
private void DeleteNode(BinaryNode <T> node, DirectionMode direction)
{
if (node.IsLeaf)
{
if (!node.HasParent)
{
Root = null;
}
else
{
if (node.Parent.LeftSon == node)
{
node.Parent.LeftSon = null;
}
else if (node.Parent.RightSon == node)
{
node.Parent.RightSon = null;
}
}
}
else if (node.OnlyOneSon)
{
if (!node.HasParent)
{
if (node.HasLeftSon)
{
Root = node.LeftSon;
node.LeftSon.Parent = null;
}
else if (node.HasRightSon)
{
Root = node.RightSon;
node.RightSon.Parent = null;
}
}
else
{
if (node.HasLeftSon)
{
if (node.Parent.LeftSon == node)
{
node.LeftSon.Parent = node.Parent;
node.Parent.LeftSon = node.LeftSon;
}
else if (node.Parent.RightSon == node)
{
node.LeftSon.Parent = node.Parent;
node.Parent.RightSon = node.LeftSon;
}
}
else if (node.HasRightSon)
{
if (node.Parent.LeftSon == node)
{
node.RightSon.Parent = node.Parent;
node.Parent.LeftSon = node.RightSon;
}
else if (node.Parent.RightSon == node)
{
node.RightSon.Parent = node.Parent;
node.Parent.RightSon = node.RightSon;
}
}
}
}
else if (node.BothSons)
{
if (direction == DirectionMode.Left)
{
var buffNode = FindMax(node.LeftSon);
node.Value = buffNode.Value;
DeleteNode(buffNode, direction);
}
else if (direction == DirectionMode.Right)
{
var buffNode = FindMin(node.RightSon);
node.Value = buffNode.Value;
DeleteNode(buffNode, direction);
}
}
}
private int getHeightRec(BinaryNode subTree)
{
if (subTree == null)
{
return 0;
}
else
{
return Math.Max(getHeightRec(subTree.getLeft()), getHeightRec(subTree.getRight())) + 1;
}
}
public BinaryNode(BinaryNode <T> parent, T item)
{
_children = new List <BinaryNode <T> >();
_parent = parent;
_item = item;
}
private BinaryNode getNDelNextInOrderNode(BinaryNode prev, BinaryNode currNode)
{
BinaryNode prevNode = currNode;
BinaryNode toReturn = currNode.getRight();
bool executed = false;
while (toReturn.getLeft() != null)
{
prevNode = toReturn;
toReturn = toReturn.getLeft();
executed = true;
}
if (executed == true)
{
prevNode.setLeft(null);
}
else
{
prevNode.setRight(null);
}
return toReturn;
}
protected override bool CheckTree(BinaryNode<int> node)
{
return node.IsBinarySearchTree1(_comparer);
}
private bool hasValueRec(BinaryNode subTree, int value)
{
if (subTree == null)
{
return false;
}
else if (subTree.getData() == value)
{
return true;
}
else if (subTree.getData() > value)
{
return hasValueRec(subTree.getLeft(), value);
}
else
{
return hasValueRec(subTree.getRight(), value);
}
}
public BinaryNode(object data)
{
this.data = data;
left = right = null;
}
public BinaryTree()
{
root = null;
}