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Data Structures with Generic Types in C++

Solution: Skiplists

Explore how to implement the findPredNode method in a skiplist to locate preceding nodes efficiently. Understand techniques to eliminate redundant comparisons during search operations, improving skiplist performance. This lesson helps you optimize skiplist behavior for handling duplicated values and demonstrates practical add and find method usage.

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Problem

This task implements the find(x) method in a SkiplistSSet and sometimes performs redundant comparisons; these occur when x is compared to the same value more than once. They can occur when, for some node, u, u.next[r] = u.next[r − 1]. Modify the find(x) so that these redundant comparisons are avoided.

Solution

The findPredNode(T x) method in the SkiplistSSet class is a helper function used by the ...