public static void PrintList(Node start)
{
while(start != null)
{
Console.Write("{0}-->", start.Value);
start = start.Next;
}
}
public void growTree(int maxHeight, String indent)
{
//Console.WriteLine(indent + m_weight.ToString());
if (maxHeight > 0)
{
m_leftChild = new Node();
m_leftChild.growTree(maxHeight - 1, indent + " ");
m_rightChild = new Node();
m_rightChild.growTree(maxHeight - 1, indent + " ");
}
else
m_leftChild = m_rightChild = null;
}
public static Node Reverse(Node start, Node originalStart)
{
// base case
if (start.Next == null)
{
return start;
}
Node next = start.Next;
Node reverseStart = Reverse(next);
next.Next = start;
if (start == originalStart)
{
start.Next = null;
}
return reverseStart;
}
public static void Test1()
{
Node Node1 = new Node {Value = 1};
Node Node2 = new Node {Value = 2};
Node Node3 = new Node {Value = 3};
Node Node4 = new Node {Value = 4};
Node Node5 = new Node {Value = 5};
Node Node6 = new Node {Value = 6};
Node1.Next = Node2;
Node2.Next = Node3;
Node3.Next = Node4;
Node4.Next = Node5;
Node5.Next = Node6;
ReverseLL1.PrintList(Node1);
Node result = ReverseLL1.Reverse(Node1);
Console.WriteLine();
ReverseLL1.PrintList(result);
}
public void rotateTree(ref Weight leftWeight, ref Weight rightWeight)
{
//Console.WriteLine("rotateTree(" + m_weight.ToString() + ") - begin");
Node newLeftChild = null, newRightChild = null;
int objCount = s_objCount;
if (m_leftChild != null)
{
newRightChild = new Node();
objCount++;
newRightChild.m_leftChild = m_leftChild.m_leftChild;
newRightChild.m_rightChild = m_leftChild.m_rightChild;
newRightChild.m_weight = m_leftChild.m_weight;
}
if (m_rightChild != null)
{
newLeftChild = new Node();
objCount++;
newLeftChild.m_leftChild = m_rightChild.m_leftChild;
newLeftChild.m_rightChild = m_rightChild.m_rightChild;
newLeftChild.m_weight = m_rightChild.m_weight;
}
m_leftChild = newLeftChild;
m_rightChild = newRightChild;
for (int I = 0; I < 1024; I++) { int[] u = new int[1024]; }
GC.Collect();
if (m_rightChild != null)
{
if (m_rightChild.m_leftChild != null &&
m_rightChild.m_rightChild != null)
{
m_rightChild.rotateTree(
ref m_rightChild.m_leftChild.m_weight,
ref m_rightChild.m_rightChild.m_weight);
}
else
{
Weight minus1 = null;
m_rightChild.rotateTree(ref minus1, ref minus1);
}
if (leftWeight != m_rightChild.m_weight)
{
Console.WriteLine("left weight do not match.");
throw new Exception();
}
}
if (m_leftChild != null)
{
if (m_leftChild.m_leftChild != null &&
m_leftChild.m_rightChild != null)
{
m_leftChild.rotateTree(
ref m_leftChild.m_leftChild.m_weight,
ref m_leftChild.m_rightChild.m_weight);
}
else
{
Weight minus1 = null;
m_leftChild.rotateTree(ref minus1, ref minus1);
}
if (rightWeight != m_leftChild.m_weight)
{
Console.WriteLine("right weight do not match.");
throw new Exception();
}
}
//Console.WriteLine("rotateTree(" + m_weight.ToString() + ") - end");
}
private static int Main()
{
Node root = new Node();
root.growTree(4, "");
root.rotateTree(ref root.m_leftChild.m_weight, ref root.m_rightChild.m_weight);
return 100;
}
public static Node Reverse(Node start)
{
return Reverse(start, start);
}
private static int Main()
{
try
{
Node root = new Node();
root.growTree(6, "").rotateTree(
ref root.m_leftChild.m_weight,
ref root.m_rightChild.m_weight);
}
catch (Exception)
{
Console.WriteLine("*** FAILED ***");
return 1;
}
Console.WriteLine("*** PASSED ***");
return 100;
}
public virtual void rotateTree(ref int leftWeight, ref int rightWeight)
{
//Console.WriteLine("rotateTree(" + m_weight.ToString() + ")");
VerifyValid();
// create node objects for children
Node newLeftChild = null, newRightChild = null;
if (m_leftChild != null)
{
newRightChild = new Node();
newRightChild.m_leftChild = m_leftChild.m_leftChild;
newRightChild.m_rightChild = m_leftChild.m_rightChild;
newRightChild.m_weight = m_leftChild.m_weight;
}
if (m_rightChild != null)
{
newLeftChild = new Node();
newLeftChild.m_leftChild = m_rightChild.m_leftChild;
newLeftChild.m_rightChild = m_rightChild.m_rightChild;
newLeftChild.m_weight = m_rightChild.m_weight;
}
// replace children
m_leftChild = newLeftChild;
m_rightChild = newRightChild;
for (int I = 0; I < 32; I++) { int[] u = new int[1024]; }
// verify all valid
if (m_rightChild != null)
{
if (m_rightChild.m_leftChild != null &&
m_rightChild.m_rightChild != null)
{
m_rightChild.m_leftChild.VerifyValid();
m_rightChild.m_rightChild.VerifyValid();
m_rightChild.rotateTree(
ref m_rightChild.m_leftChild.m_weight,
ref m_rightChild.m_rightChild.m_weight);
}
else
{
int minus1 = -1;
m_rightChild.rotateTree(ref minus1, ref minus1);
}
if (leftWeight != m_rightChild.m_weight)
{
Console.WriteLine("left weight do not match.");
throw new Exception();
}
}
if (m_leftChild != null)
{
if (m_leftChild.m_leftChild != null &&
m_leftChild.m_rightChild != null)
{
m_leftChild.m_leftChild.VerifyValid();
m_leftChild.m_rightChild.VerifyValid();
m_leftChild.rotateTree(
ref m_leftChild.m_leftChild.m_weight,
ref m_leftChild.m_rightChild.m_weight);
}
else
{
int minus1 = -1;
m_leftChild.rotateTree(ref minus1, ref minus1);
}
if (rightWeight != m_leftChild.m_weight)
{
Console.WriteLine("right weight do not match.");
throw new Exception();
}
}
}
