Write a procedure to prints the avl tree, Programming Languages

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(a) Write a procedure called (lookup n t). This procedure has 2 arguments: n is the value being looked up, t is the AVL tree. The subtree with n as its root is returned (or '() if no such node is found).

 (b) Write a procedure called (print-as-list t). This procedure prints the AVL tree passed in t as a regular list (not a mutable list).

 


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