I interviewed at Fiverr for a backend engineer position. The opening was for their payment group.

I had a phone interview, followed by a team lead interview, and then a group manager interview.

The interviews were technical and included algorithmic and system design questions.

Write a function that gets an array and an integer.

The function should modify the existing array (without using any additional space) and bring n elements from the beginning of the array to the end of it, keeping the order.