Removes the element with key k if it exists. The position of current is // unspecified after calling this method.The first element of the returned pair // indicates whether k was removed, and the...

 Removes the element with key k if it exists. The position of current is
// unspecified after calling this method.The first element of the returned pair // indicates whether k was removed, and the second is the number of key
// comparisons made.
Pair remove(K key);

// Returns all keys of the map as a list sorted in increasing order.

List getAll(); }

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