IBM Software Applications Developer interview questions

It was super quick. I interviewed on a Saturday, both round held on that day, on Monday there was one tech-managerial round. I got the offer letter in 5 working days

30 mins interview on webex was scheduled. next level hiring question., Asked to sort an array without using any algorithm or utility function , Was rude as hell , and always interrupting in between instead of letting me explain or explaining himself. got a fair idea about the type of people working there , never ever apply or interview in this garbage.