e aigonthm preprocesses the pattem right to left and creates 2 shift tables, a bad-sym

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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punse.
Question 21
True or False: The Boyer-Moore aigonthm preprocesses the pattem right to left and creates 2 shit tables, a bad-symbol table and a good-suffix table,
O True
Ob False
Movine
Question 24
Assume here enists an unsorted amay of 1.000.000 numbers. Which of the folowing sigorithms is the most effcient on average to find the median of the numbers in the array?
OA Presort the amay of numbers using quicksort or mergesort, then select the number in the middie index of the array
OA Presort he aay uing insertionsort hen select the number in the middie of the aray
Oc Recuively subdvide the aray into arrays and solve for the median of the two smaller arrays
Od For each number, count how many numbers are less than that number, unti the count is appoximately half the amray size.
Transcribed Image Text:punse. Question 21 True or False: The Boyer-Moore aigonthm preprocesses the pattem right to left and creates 2 shit tables, a bad-symbol table and a good-suffix table, O True Ob False Movine Question 24 Assume here enists an unsorted amay of 1.000.000 numbers. Which of the folowing sigorithms is the most effcient on average to find the median of the numbers in the array? OA Presort the amay of numbers using quicksort or mergesort, then select the number in the middie index of the array OA Presort he aay uing insertionsort hen select the number in the middie of the aray Oc Recuively subdvide the aray into arrays and solve for the median of the two smaller arrays Od For each number, count how many numbers are less than that number, unti the count is appoximately half the amray size.
Question 25
Given the following pattern, how much shift would occur if the character to shift on is a 'C'?
AGTTAACTA
O a. 0
Ob.2
Oc 9
Od.1
Transcribed Image Text:Question 25 Given the following pattern, how much shift would occur if the character to shift on is a 'C'? AGTTAACTA O a. 0 Ob.2 Oc 9 Od.1
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