I received the OA from Elastic which is on CodeSignal and there were 4 coding questions. I feel like the first two questions are easy and the last two are at least medium or hard questions.
Questions d'entretien [1]
Question 1
Here is the hardest one:
Given a matrix(n * n) with 2n-1 diagonals, sort and return all the diagonals in lexicographical order.