. Add to LinearProbingHashST a delete() method that deletes a key-value pair by setting the value to null (but not removing the key) and later removing the pair from the table in resize(). Your primary challenge is to decide when to call resize(). Note : You should overwrite the null value if a subsequent put() operation associates a new value with the key. Make sure that your program takes into account the number of such tombstone items, as well as the number of empty positions, in making the decision whether to expand or contract the table.
. Add to LinearProbingHashST a delete() method that deletes a key-value pair by setting the value to null (but not removing the key) and later removing the pair from the table in resize(). Your primary challenge is to decide when to call resize(). Note : You should overwrite the null value if a subsequent put() operation associates a new value with the key. Make sure that your program takes into account the number of such tombstone items, as well as the number of empty positions, in making the decision whether to expand or contract the table.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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g. Add to LinearProbingHashST a delete()
method that deletes a key-value pair by setting the value to null (but not removing
the key) and later removing the pair from the table in resize(). Your primary challenge is to decide when to call resize(). Note : You should overwrite the null value if
a subsequent put() operation associates a new value with the key. Make sure that your
program takes into account the number of such tombstone items, as well as the number
of empty positions, in making the decision whether to expand or contract the table.
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