Exercises 2.67-2.68 Huffman encoding
Exercise 2.69 - shepherded solution to generate a huffman tree using the extensive infrastructure already in place. i don't THINK it can get much un-complex...
Exercise 2.70 - Encoded rock and roll songs; hilarious
Exercises 2.71-72 wrap up the Huffman encoding trees. Much clearer and instructive when you're not under Caltech time pressures