private static void determineHuffmanCodesOfLeafNodes(HuffmanNode node, BitArray shortestBinaryCode)
{
const bool Zero = false;
const bool One = true;
if (node.IsLeaf)
{
node.HuffmanCode = shortestBinaryCode;
return;
}
determineHuffmanCodesOfLeafNodes(node.Left, shortestBinaryCode.WithAppendedValue(Zero));
determineHuffmanCodesOfLeafNodes(node.Right, shortestBinaryCode.WithAppendedValue(One));
}