This code is adapted from Professor Vitter s article, Design and Analysis of Dynamic Huffman Codes, which appeared in JACM October 1987 author: karl malbrain, karl_m@acm.org

Dynamic Huffman coding of subsets of arbitrary alphabets, Professor Vitter s invariant * for algorithm FGK. Includes a tree weight scaling interface-Dynamic Huffman coding of subsets of arbitrary alphabets, Professor Vi