1 3 4 5 6 7 8 12 20 30 40 50 60 70 80 90 | 100 A 0 1 2 3 12 20 30 40 50 1 2 3 4 60 70 | 80 | 90 100 R 2.

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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Question

Dry run the below pseudo code and merge L and R arrays into A.

Merge (A, p, q, r)

  1. n1 ← length (L)
  2. n2 ← length (R)
  3. i ← j ← k = 0
  4. while (i < n1 && j < n2)
  5. if (L[i] ≤ R [j] )
  6. A[k] ← L [i]             
  7. i ← i+1
  8. k ← k+1
  9. else
  10. A[k] ← R [j]
  11. j ← j+1
  12. k ← k+1

[for remaining element in A or B]

  1. while (i < n1)
  2. A[k] ← L[i]
  3. i ← i+1
  4. k ← k+1
  5. while (j < n2)
  6. A[k] ← R[j]
  7. j ← j+1
  8. k ← k+1
1
3
4
5
6
7 8
12 20 30 40
50 60 | 70 80
90 100
A
0 1 2 3
12
20 |
30 | 40
50
1
2 3
4
R
60
70 80
90 100
2.
Transcribed Image Text:1 3 4 5 6 7 8 12 20 30 40 50 60 | 70 80 90 100 A 0 1 2 3 12 20 | 30 | 40 50 1 2 3 4 R 60 70 80 90 100 2.
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