error in quick sort c++

Question

I have been trying to write a quick sort algorithm in c++. But I am getting a strange error and confused how to fix it.
please have a look.
https://code.sololearn.com/c5tpKMujgejs

Answer 1

You need to put the partition function above the quicksort function or put the function signature above it so that it is in scope.
That will solve the 1st problem.

Answer 2

Martin Taylor I know. It's just for the practice. I was actually waiting for this comment😂

Answer 3

ChaoticDawg okay. Thanks

Answer 4

ChaoticDawg okay. That's a weird thing in c++.
Thanks for answer

Answer 5

Gajendra Sonare As I recall, all languages do have an already implemented sorting algorithm, don't worry much about their implementation, focus on the difference between them and when to use each one of them

Answer 6

Gajendra Sonare
Check out the implementations here. They may help you to find your remaining issue(s).

https://www.sololearn.com/learn/669/?ref=app

Answer 7

Maher Al Dayekh okay

Answer 8

Yes, it's a good exercise in learning how to use recursion in C++. It can sometimes even be given as homework or even an examination question to program your own implementation of quicksort in various languages