Quick Sort

easy
1. You are given an array(arr) of integers.
2. You have to sort the given array in increasing order using quick-sort.

Input Format

An Integer n arr1 arr2.. n integers

Output Format

Check the sample output and question video.

Constraints

1 <= N <= 100000
-10^9 <= arr[i] <= 10^9

Notice

Try First, Check Solution later

1. You should first read the question and watch the question video.
2. Think of a solution approach, then try and submit the question on editor tab.
3. We strongly advise you to watch the solution video for prescribed approach.

Example

Input
5
7 
-2 
4 
1 
3
Output
pivot -> 3
Swapping -2 and 7
Swapping 1 and 7
Swapping 3 and 4
pivot index -> 2
pivot -> 1
Swapping -2 and -2
Swapping 1 and 1
pivot index -> 1
pivot -> -2
Swapping -2 and -2
pivot index -> 0
pivot -> 4
Swapping 4 and 7
pivot index -> 3
pivot -> 7
Swapping 7 and 7
pivot index -> 4
-2 1 3 4 7 
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Partition An Array
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Quick Select

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