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Midterm 2 Review


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Unformatted text preview: ult in a binary search tree of height N – 1 when you are inserting N distinct keys ? 22) Exhibit the expression tree corresponding to the expression: ((a + b * c))* d + e * (f + g) 23) Preorder traversal of a binary search tree produces the sequence 5 3 18 13 9 14 21 24. Construct the tree. 24) Given a pointer to a node N in a binary search tree and a key x, you are to write a procedure that finds outputs the node in the subtree rooted at N that contains the smallest key larger than x. If such a node does not exist, it should a NULL pointer. HINT: compare x with key at N. If key(N) < x, continue the search recursively on the right subtree. If key(N) = x, then output the node containing the minimum key on the right subtree. If key(N) &...
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