ng program when xyz(3, 1, 2, 3) is called.
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

Transcribed Image Text:### Consider the following program:
#### Algorithm recursive (int n)
```plaintext
IF n = 1 then
return (1);
ELSE
recursive(n/2);
recursive(n/2);
FOR i = 1 to n
do something;
ENDFOR
ENDIF
```
(a) What is the recurrence relation?
(b) Solve the recurrence relation from (a) in terms of n and show the O( ).
**Hint:** Look at merge sort, you should get the same solution.
### Consider the following program:
#### Procedure xyz(n, first, second, third)
```plaintext
if n <= 1 then
print(n, first, second, third)
else
xyz(n-1, second, first, third)
print(n, first, second, third)
xyz(n-1, third, second, first)
endif
```
Write the output of the following program when xyz(3, 1, 2, 3) is called.
**Hint:** similar with Tower of Hanoi.
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