Question: Suppose we allow storing duplicated keys in a Balanced Binary Search Tree. That is, two elements can have the same key. Describe how to perform

Suppose we allow storing duplicated keys in a Balanced Binary Search Tree. That is, two elements can have the same key. Describe how to perform the operation findAllElements(k), which returns all the items with keys equal to k in a balanced search tree, and show that it runs in O(logn + s), where n is the number of nodes in the tree and s is the number of nodes with key equal to k.

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