Question: Let S be an ordered set of n items stored in a binary search tree, T, of height h. Show how to perform the following

Let S be an ordered set of n items stored in a binary search tree, T, of height h. Show how to perform the following method for S in O(h) time: 

countAllInRange(k1, k2): Compute and return the number of items in S with key k such that k1 ≤ k ≤ k2.

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