I was bumped around three people and had an HR call with a recruiter 10 days later.

I heard from them again two weeks later and had a technical interview a week after that.

I had to ping them to receive the take-home exercise they promised to send me. I submitted my solution the next day and was informed that it was scheduled to be reviewed three days later.

Over a month and several pings later, I was rejected because they "didn't identify the match they're currently seeking."

Given a list of expenditures for a group of people, figure out the most efficient way to transfer money between them so that no one owes anyone.