public void HuffmanCodes(char[] data, int[] freq, int size)
{
// Construct Huffman Tree
MinHeapNode root = BuildHuffmanTree(data, freq, size);
int[] arr = new int[100];
int top = 0;
PrintCodes(root, arr, top);
}
public MinHeapNode NewNode(char data, int freq)
{
var node = new MinHeapNode();
node.Left = null;
node.Right = null;
node.Data = data;
node.Freq = freq;
Nodes = new List <MinHeapNode>();
return(node);
}
public void InsertMinHeap(MinHeap minHeap, MinHeapNode minHeapNode)
{
minHeap.Size++;
minHeap.Nodes.Add(new MinHeapNode());
int i = minHeap.Size - 1;
while (i > 0 && minHeapNode.Freq < minHeap.Nodes[(i - 1) / 2].Freq)
{
minHeap.Nodes[i] = minHeap.Nodes[(i - 1) / 2];
i = (i - 1) / 2;
}
minHeap.Nodes[i] = minHeapNode;
}
public void PrintCodes(MinHeapNode root, int[] arr, int top)
{
// assign 0 to left edge and recurse
if (root.Left != null)
{
arr[top] = 0;
PrintCodes(root.Left, arr, top + 1);
}
if (root.Right != null)
{
arr[top] = 1;
PrintCodes(root.Right, arr, top + 1);
}
if (IsLeaf(root))
{
Debug.Write(root.Data + ": ");
Print(arr, top);
}
}
public bool IsLeaf(MinHeapNode root)
{
return(root.Left == null && root.Right == null);
}
