Stripe Internship interview questions

Interview consists of multiple rounds spread over days, once you pass one the HR will inform you about the next. The first round is a Hackerrank test, followed by a virtual call with one of their global employees. And at last, there is a coding test and an integration round.

HackerRank problem with 4 parts. Not a tipical leetcode question, it was design to simulate what you would do at stripe. You had 1 hour of completion and each part was a continuation of the previous part.