A very long line: What data structure or structures would you use to maintain a very long queue of records, each having an id (some sort of string). You need to be able to find the first item in O(1) time, add to the end in O(1), and remove items in O(1) time, given some id (not index), from anywhere in the line. Additionally, you need to be able to find an item in line in O(1) time and see what items are near it (in front of or in back of) in O(1), possibly more (each is O(1) time). Explain what is stored in each Data Structure (“record (with id possibly)”, “pointers to ______”). 8. (15) Use Boyer-Moore to search the following text for the word AGCTCA.k=d₂(k)=51253 5455сл сл5Bad SymbolA C G T U51 4 2 6AC GAT UA CACT AUC GAT C T U C A G CT CA9. (20) A very long line: What data structure or structures would you use to maintain a very long queueof records, each having an id (some sort of string). You need to be able to find the first item in 0(1)time, add to the end in 0(1), and remove items in O(1) time, given some id (not index), fromanywhere in the line. Additionally, you need to be able to find an item in line in O(1) time and seewhat items are near it (in front of or in back of) in O(1), possibly more (each is O(1) time). Explainwhat is stored in each Data Structure ("record (with id possibly)","pointers to _").

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Answered: A very long line: What data structure…

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

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A very long line: What data structure or structures would you use to maintain a very long queue of records, each having an id (some sort of string). You need to be able to find the first item in O(1) time, add to the end in O(1), and remove items in O(1) time, given some id (not index), from anywhere in the line. Additionally, you need to be able to find an item in line in O(1) time and see what items are near it (in front of or in back of) in O(1), possibly more (each is O(1) time). Explain what is stored in each Data Structure (“record (with id possibly)”, “pointers to ______”).

8. (15) Use Boyer-Moore to search the following text for the word AGCTCA.
k=
d₂(k)=
5
1
2
5
3 5
4
5
5
сл сл
5
Bad Symbol
A C G T U
5
1 4 2 6
AC GAT UA CACT AUC GAT C T U C A G CT CA
9. (20) A very long line: What data structure or structures would you use to maintain a very long queue
of records, each having an id (some sort of string). You need to be able to find the first item in 0(1)
time, add to the end in 0(1), and remove items in O(1) time, given some id (not index), from
anywhere in the line. Additionally, you need to be able to find an item in line in O(1) time and see
what items are near it (in front of or in back of) in O(1), possibly more (each is O(1) time). Explain
what is stored in each Data Structure ("record (with id possibly)","pointers to _").

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