The questions were -

1. Given an inputString: "US,UK,UPS,5:US,CA,FedEx,3:CA,UK,DHL,7" (etc) find the cost to ship an item from X to Y (ie: US to UK ==> Cost of 5).
2. From the previous solution, with the same inputString find the cost if you need to use an intermediate step. For instance US -> CA -> UK and it's associated cost.

I assume it was luck, but the Stripe interviewer was arrogant and not engaged the whole time -- like he didn't want to be there. I had to re-ask questions in a few different instances. I've had a lot of failures at interviews with a way better experience. I'm 90% sure I didn't clear it, but the experience was absolute garbage.