date: 2024-03-04
title: Tutorial-1
author:
  - AllenYGY
status: DONE
tags:
  - NOTE
  - DAA
  - Tutorial
created: 2024-03-04
updated: 2024-04-09T00:27
publish: True

Tutorial-1

Question1

Given the problem: “For the given positive integer, justify if it is a prime.”

Formally define the problem
Give some instances and corresponding outputs

3. Construct an algorithm and describe it with/without using pseudo code

Input: a positive integer n
Output: Yes, if n is a prime; No, Otherwise

❌ Error: Expected an atom of EOF but received ordinary at position 3: `end↱`

Algorithm Quicksort

procedure Quicksort( $A, p, r$ )

if $p < r$ then

$q =$ Partition( $A, p, r$ )

Quicksort( $A, p, q - 1$ )

Quicksort( $A, q + 1, r$ )

end if

end procedure

procedure Partition( $A, p, r$ )

$x = A[r]$

$i = p - 1$

for $j = p$ to $r - 1$ do

if $A[j] < x$ then

$i = i + 1$

exchange $A[i]$ with $A[j]$

end if

exchange $A[i]$ with $A[r]$

end for

end procedure