4. Exactly how many key comparisons will be done by Mergesort on the list [8, 7, 6, 5, 4, 3, 2, 1]? In general, how many comparisons are done for a list of N elements that is in decreasing order? Show details of all work.

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
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4. Exactly how many key comparisons will be done by Mergesort on the
list [8, 7, 6, 5, 4, 3, 2, 1]? In general, how many comparisons are done
for a list of N elements that is in decreasing order? Show details of all
work.
Transcribed Image Text:4. Exactly how many key comparisons will be done by Mergesort on the list [8, 7, 6, 5, 4, 3, 2, 1]? In general, how many comparisons are done for a list of N elements that is in decreasing order? Show details of all work.
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