Question: A skip list is a linked list with additional entry points other than header and trailer. Suppose we have a sentineled , doubly - linked

A skip list is a linked list with additional entry points other than header and trailer. Suppose we have a sentineled, doubly-linked skip list with entry points at the header, quarter-length, half-length, three-quarter length, and trailer as illustrated below. Under this model, what is the new worst-case performance of accessing an arbitrary index?

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