Answered: I need help tracing the following…

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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I need help tracing the following algorithm ( by hand manually), which takes in length-n array A containing integers ranging from 0 to 9. Assume that the array indexing begins at 0

Suppose the input is A = <5,2,0,6,1,9,6,5>.

(Need help in Tracing for the following questions )

1) At the end of the execution of the for loop of Lines 5--6, what does C[0] contain?

2) At the end of the execution of the for loop of Lines 5--6, what does C[7] contain?

3)At the end of the execution of the for loop of Lines 7--8, what does C[4] contain?

For reference Answer to Q1 is 1 , Q2 is 0 and Q3 is 3.

Consider the following algorithm, which takes in a length-n array A
containing integers in the range 0 to 9.
Assume that array indexing begins at 0.
ALGO (A)
1: Let B be an array of length n
2: Let C be an array of length 10
3: for i=0 to 9
4:
5: for
6:
C[i] = 0
j = 0 to n-1
C[A[j]] C[A[j]] + 1
=
7: for i=1 to 9
8:
C[i] = C[i] + C[i-1]
9: for j = n-1 down to
10:
11:
B[C[A[j]]-1] = A[j]
C[A[J]]= C[A[j]] - 1

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