have a child e-length code w hat occur more The three approa and key sequenced. To delete a node in a general tree, we must ensure that it does HUL 1 Huffman code is an encoding method that uses a variable-lene, represent characters. . In Huffman code we assign shorter codes to characters that o frequently and longer codes to those that occur less frequently 6.6 Practice Sets Exercises 1. Show the tree representation of the following parenthetical notation: a b c d e f (g h)) 2. In Figure 6-25 find the: a. root b. leaves c. internal nodes d. ancestors of H e. descendents of F 3. In Figure 6-25 find the: a. indegree of node F b. outdegree of node B c. siblings of H d. parent of K e. children of C 4. In Figure 6-25 find the: a. height of the tree b. height of subtree G c. level of node G d. level of node A e. height of subtree E FIGURE 6-25 Tree for Exercises 2, 3, 4, 5, 6, and 7