10 points 4. Draw an AVL tree for the following values inserted in this order. Illustrate the tree for each rotation that occurs: 83 12 62 55 32 68 74 10 points 5. Draw an AVL tree for the following values inserted in this order. Illustrate the tree for each rotation that occurs: 50 26 65 13 16 28 11 20 52 35 30 10 points 6. For the splay tree shown below, show how an access of node 55 is performed. Illustrate the tree for each operation that occurs: 10 \ 20 / \ 15 30 / \ 25 40 / \ 35 50 \ 60 / 55