Question: Some applications do not permit storing two records with duplicate key values. In such a case, an attempt to insert a duplicate-keyed record into a

Some applications do not permit storing two records with duplicate key values.

In such a case, an attempt to insert a duplicate-keyed record into a tree structure such as a splay tree should result in a failure on insert. What is the appropriate action to take in a splay tree implementation when the insert routine is called with a duplicate-keyed record?

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